381 results on '"Mulder PG"'
Search Results
2. Mortality after major amputation in elderly patients with critical limb ischemia
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Klaphake S, de Leur K, Mulder PGH, Ho GH, de Groot HG, Veen EJ, Verhagen HJM, and van der Laan L
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major amputation ,mortality ,elderly ,critical limb ischemia ,Geriatrics ,RC952-954.6 - Abstract
Sanne Klaphake,1,2 Kevin de Leur,1 Paul GH Mulder,1,3 Gwan H Ho,1 Hans G de Groot,1 Eelco J Veen,1 Hence JM Verhagen,2 Lijckle van der Laan1 1Department of Surgery, Amphia Hospital, Breda, 2Department of Vascular Surgery, Erasmus University Medical Center, Rotterdam, 3Amphia Academy, Amphia Hospital, Breda, the Netherlands Background: Owing to the aging population, the number of elderly patients with critical limb ischemia (CLI) has increased. The consequence of amputation is immense. However, at the moment, information about the mortality after amputation in the elderly vascular patients is unknown. For this reason, this study evaluated mortality rates and patient-related factors associated with mortality after a major amputation in elderly patients with CLI.Methods: From 2006 to 2013, we included patients aged >70 years who were treated for chronic CLI by primary or secondary major amputation within or after 3 months of initial therapy (revascularization or conservative management). Outcome measurements were mortality after major amputation and factors associated with mortality (age, comorbidity and timing of amputation).Results: In total, 168/651 patients (178 legs; 26%) underwent a major amputation. Patients were stratified by age: 70–80 years (n=86) and >80 years (n=82). Overall mortality after major amputation was 44%, 66% and 85% after 1, 3 and 5 years, respectively. The 6-month and 1-year mortality in patients aged 80 years or older was, respectively, 59% or 63% after a secondary amputation 3 months. Per year of age, the mortality rate increased by 4% (P=0.005). No significant difference in mortality after major amputation was found in the presence of comorbidity or according to Rutherford classification.Conclusion: Despite developments in the treatment of CLI by revascularization, amputation rates remain high and are associated with tremendous mortality rates. Secondary amputation after a failed attempt of revascularization causes a higher mortality. Further research concerning timing of amputation and patient-related outcome is needed to evaluate if selected patients might benefit from primary amputation. Keywords: peripheral arterial disease, aged, limb ischemia, primary amputation, octogenarians, patient selection
- Published
- 2017
3. New aspects of delirium in elderly patients with critical limb ischemia
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van Eijsden WA, Raats JW, Mulder PGH, and van der Laan L
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critical limb ischemia ,delirium ,elderly ,surgery ,Geriatrics ,RC952-954.6 - Abstract
Willem A van Eijsden,1 Jelle W Raats,1 Paul GH Mulder,2 Lijckle van der Laan1 1Department of Surgery, 2Amphia Academy, Amphia Hospital, Breda, the Netherlands Objective: The primary objective was to identify possible risk factors for delirium in patients with critical limb ischemia undergoing surgery. The secondary objective was to study the effect of delirium on complications, the length of hospital stay, health care costs, and mortality. Methods: All patients 65 years or older with critical limb ischemia undergoing surgery from February 2013 to July 2014 at Amphia Hospital, were included and followed up until December 31, 2014. Delirium was scored using the Delirium Observation Screening Scale (DOSS). Perioperative risk factors (age, comorbidity, factors of frailty, operation type, hemoglobulin, and transfusion) were collected and analyzed using logistic regression. Secondary outcomes were the number of complications, total hospital stay, extra health care costs per delirium, and mortality within 3 months and 6 months of surgery Results: We included 92 patients with critical limb ischemia undergoing surgery. Twenty-nine (32%) patients developed a delirium during admission, of whom 17 (59%) developed delirium preoperatively. After multivariable analysis, only diabetes mellitus (odds ratio [OR] =6.23; 95% confidence interval [CI]: 1.11–52.2; P=0.035) and Short Nutritional Assessment Questionnaire for Residential Care (SNAQ-RC) ≥3 (OR =5.55; 95% CI: 1.07–42.0; P=0.039) was significantly associated with the onset of delirium. Delirium was associated with longer hospital stay (P=0.001), increased health care costs, and higher mortality after 6 months (P
- Published
- 2015
4. Ankle stress test for predicting the need for surgical fixation of isolated fibular fractures: statistical analysis.
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Hermans JJ, Beumer A, Mulder PG, Hermans, John J, Beumer, Annechien, and Mulder, Paul G H
- Published
- 2005
5. Adaptive brachytherapy for cervical cancer in combined 1.5 T MR/HDR suite: Impact of repeated imaging.
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Van Vliet-van den Ende KM, Hoogendoorn-Mulder PG, Schokker RI, Moerland MA, Kroon PS, Roesink JM, Fajardo RD, Van der Leij F, and Jürgenliemk-Schulz IM
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Introduction: At our department we have a dedicated 1.5 Tesla MRI/HDR brachytherapy suite, which provides the possibility of repeated MRI scanning before, during and after applicator insertion and before and/or after irradiation for patients with advanced cervical cancer. In this study we analysed the effect of this adaptive workflow. We investigated the number of interventions, their impact on organ doses (OAR) and the respective dose differences between total prescribed and total delivered doses., Materials and Methods: Seventy patients with locally advanced cervical cancer FIGO2009 stages IB-IVA, treated from June 2016 till August 2020, were retrospectively analysed. The standard brachytherapy schedule consisted of two applicator insertions and delivery of three or four HDR fractions.OARs were recontoured on the repeated MRI scans. The D
2cm3 dose difference between total prescribed and total delivered dose for bladder, rectum, sigmoid and bowel were calculated., Results: In total 153 interventions were performed, 3 replacements of the applicator, 23 adaptations of needle positions, bladder filling was changed 74 times and repeated rectal degassing 53 times. The impact of the rectal interventions was on average -1.2 Gy EQD23 . Dose differences between total delivered and total prescribed D2cm3 for bladder, rectum, sigmoid and bowel were -0.6, 0.3, 2.2 and -0.6 Gy EQD23 , respectively., Conclusions: An MRI scanner integrated into the brachytherapy suite enables multiple interventions based on the scans before treatment planning and dose delivery. This allows for customized treatment according to the changing anatomy of the individual patient and a better estimation of the delivered dose., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors.)- Published
- 2024
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6. Abdominal aortic aneurysm patients remain at risk for delirium on the surgical ward after intensive care unit dismissal.
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Roijers JP, Spillenaar Bilgen R, Hopmans CJ, Mulder PG, Buimer MG, Ho GH, de Groot HG, Veen EJ, Besselink-Lobanova A, van der Meer NJ, and van der Laan L
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- Emergency Treatment, Humans, Intensive Care Units, Retrospective Studies, Risk Factors, Aortic Aneurysm, Abdominal complications, Aortic Aneurysm, Abdominal surgery, Delirium epidemiology, Delirium etiology
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Background: The incidence of delirium following open abdominal aortic aneurysm (AAA) surgery is significant, with incidence rates ranging from 12% to 33%. However, it remains unclear on what level of care a delirium develops in AAA patients. The aim of this study was to investigate the incidence of delirium in the ICU and on the surgical ward after AAA surgery., Methods: A single-center retrospective cohort study was conducted that included all patients treated electively for an open AAA repair and patients who underwent emergency treatment for a ruptured AAA between 2013 and 2018. The diagnosis of delirium was verified by a psychiatrist or geriatrician using the Diagnostic and Statistical Manual of Mental Disorders (DSM-V) criteria. The incidence of delirium was calculated. Cox proportional hazards regression analyses were used to analyze 6- and 12-month survival., Results: A total of 135 patients were included, 46 patients (34%) had a delirium during admission. Of these, 30 patients (65%) developed a delirium in the ICU and 16 patients (35%) on the surgical ward. There was no significant difference in six months and twelve months mortality between the ICU and ward delirium groups (HR=1.64, 95% CI: 0.33-8.13, and HR=1.12, 95% CI: 0.28-4.47, respectively)., Conclusions: Delirium frequently occurs in patients who undergo AAA surgery. This study demonstrated that patients on the surgical ward remain at risk of developing a delirium after ICU dismissal. Patients with ICU delirium differ in clinical characteristics and outcomes from patients with a delirium on the surgical ward.
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- 2020
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7. Does robotic rectal cancer surgery improve the results of experienced laparoscopic surgeons? An observational single institution study comparing 168 robotic assisted with 184 laparoscopic rectal resections.
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Crolla RMPH, Mulder PG, and van der Schelling GP
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- Aged, Clinical Competence, Female, Humans, Male, Middle Aged, Neoadjuvant Therapy, Netherlands, Operative Time, Outcome Assessment, Health Care, Professional Practice standards, Surgeons standards, Laparoscopy methods, Postoperative Complications prevention & control, Proctectomy adverse effects, Proctectomy instrumentation, Proctectomy methods, Rectal Neoplasms surgery, Robotic Surgical Procedures methods
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Background: The role of robotic assistance in colorectal cancer surgery has not been established yet. We compared the results of robotic assisted with those of laparoscopic rectal resections done by two surgeons experienced in laparoscopic as well as in robotic rectal cancer surgery., Methods: Two surgeons who were already experienced laparoscopic colorectal surgeons in 2005 started robotic surgery with the daVinci SI system in 2012. All their rectal cancer resections between 2005 and 2015 were retrieved from a prospectively recorded colorectal database of routinely collected patient data. Multi-organ resections were excluded. Patient data, diagnostic data, data on preceding operations and neoadjuvant treatment, perioperative and operative data, logistic data, and short-term outcomes were gathered. Multivariable analyses (multiple linear and logistic regression) were used to assess differences in several outcomes between the two resection methods while adjusting for all potential confounders we could identify. Results are presented as adjusted mean differences for continuous outcome variables or as adjusted odds ratios (OR) for dichotomous outcome variables., Results: Three hundred and fifty-two patients with rectal cancers were identified: 168 robotic and 184 conventional laparoscopic cases, 178 operated by surgeon A and 174 operated by surgeon B. Adjusted mean operation time was 215 min in the robotic group which was 40 min (95% CI 24-56; p < 0.0005) longer than the 175 min in the laparoscopic group. Robotic treatment had significantly lesser numbers of conversions (OR 0.09 (0.03-0.32); p < 0.0005) and other complications (SSI and anastomic leakage excluded) (OR 0.32 (0.15-0.69); p = 0.004), adjusted for potential confounders., Conclusions: Our study suggests that robotic surgery in the hands of experienced laparoscopic rectal cancer surgeons improves the conversion rate and complication rate drastically compared to conventional laparoscopic surgery, but operation time is longer.
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- 2018
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8. The clinical applicability of an automated plethysmographic determination of the ankle-brachial index after vascular surgery.
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van der Slegt J, Verbogt NP, Mulder PG, Steunenberg SL, Steunenberg BE, and van der Laan L
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- Aged, Automation, Cross-Sectional Studies, Equipment Design, Female, Humans, Male, Middle Aged, Postoperative Care instrumentation, Predictive Value of Tests, Prospective Studies, Reproducibility of Results, Ankle Brachial Index instrumentation, Plethysmography instrumentation, Postoperative Care methods, Vascular Surgical Procedures
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An automated ankle-brachial index device could lead to potential time savings and more accuracy in ankle-brachial index-determination after vascular surgery. This prospective cross-sectional study compared postprocedural ankle-brachial indices measured by a manual method with ankle-brachial indices of an automated plethysmographic method. Forty-two patients were included. No significant difference in time performing a measurement was observed (1.1 min, 95% CI: -0.2 to +2.4; P = 0.095). Mean ankle-brachial index with the automated method was 0.105 higher (95% CI: 0.017 to 0.193; P = 0.020) than with the manual method, with limits of agreement of -0.376 and +0.587. Total variance amounted to 0.0759 and the correlation between both methods was 0.60. Reliability expressed as maximum absolute difference (95% level) between duplicate ankle-brachial index-measurements under identical conditions was 0.350 (manual) and 0.152 (automated), although not significant (p = 0.053). Finally, the automated method had 34% points higher failure rate than the manual method. In conclusion based on this study, the automated ankle-brachial index-method seems not to be clinically applicable for measuring ankle-brachial index postoperatively in patients with vascular disease., (© The Author(s) 2016.)
- Published
- 2016
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9. Press-fit bipolar radial head arthroplasty, midterm results.
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Kodde IF, Heijink A, Kaas L, Mulder PG, van Dijk CN, and Eygendaal D
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- Adult, Aged, Female, Follow-Up Studies, Humans, Male, Middle Aged, Prosthesis Design, Range of Motion, Articular, Reoperation, Retrospective Studies, Treatment Outcome, Young Adult, Arthroplasty, Replacement, Elbow, Elbow Prosthesis, Fractures, Comminuted surgery, Radius Fractures surgery
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Background: Theoretical advantages of bipolar compared with monopolar radial head arthroplasty include better accommodation of radiocapitellar malalignment, reduction of capitellar abrasion, and reduction of stress at the bone-implant interfaces. Our purpose was to report the midterm results of press-fit bipolar radial head arthroplasty., Methods: Thirty patients were treated by press-fit bipolar radial head arthroplasty for acute fracture of the radial head, failed earlier treatment, or post-traumatic sequelae. Three patients were lost to follow-up. Results are presented for the remaining 27 patients., Results: At mean follow-up of 48 months (range, 28-73), there had been 3 (11%) revisions. Two involved conversion to prosthetic radiocapitellar hemiarthroplasty for symptomatic capitellar abrasion; a third involved exchange of the articular component (ie, head) for instability. In all, the stems appeared well fixed. A prosthesis in a subluxed position accounted for the 1 (4%) additional radiologic failure. The average flexion-extension arc was 136° (range, 120°-145°), and the average pronation-supination arc was 138° (range, 70°-180°). According to the Mayo Elbow Performance Score, the combined excellent and good results accounted for 70%., Conclusions: The overall midterm outcome of this series of 30 press-fit bipolar radial head arthroplasties can be considered favorable. Although the revision rate was 11%, the stems were well fixed in all. There was 1 (4%) additional radiologic failure. We suggest considering a press-fit bipolar radial head prosthesis for acute comminuted radial head fractures with limited bone loss of the proximal radius., (Copyright © 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.)
- Published
- 2016
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10. Pilot Study of the Pharmacokinetics of Cefotaxime in Critically Ill Patients with Acute Kidney Injury Treated with Continuous Renal Replacement Therapy.
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Koedijk JB, Valk-Swinkels CG, Rijpstra TA, Touw DJ, Mulder PG, van der Voort PH, van 't Veer NE, and van der Meer NJ
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- Aged, Anti-Bacterial Agents therapeutic use, Cefotaxime therapeutic use, Critical Illness, Female, Humans, Intensive Care Units, Male, Pilot Projects, Prospective Studies, Renal Replacement Therapy, Acute Kidney Injury therapy, Anti-Bacterial Agents pharmacokinetics, Cefotaxime analogs & derivatives, Cefotaxime blood, Cefotaxime pharmacokinetics
- Abstract
The objective of this study was to describe the pharmacokinetics of cefotaxime (CTX) in critically ill patients with acute kidney injury (AKI) when treated with continuous renal replacement therapy (CRRT) in the intensive care unit (ICU). This single-center prospective observational pilot study was performed among ICU-patients with AKI receiving ≥48 h concomitant CRRT and CTX. CTX was administered intravenously 1,000 mg (bolus) every 6 h for 4 days. CRRT was performed as continuous venovenous hemofiltration (CVVH). Plasma concentrations of CTX and its active metabolite desacetylcefotaxime (DAC) were measured during CVVH treatment. CTX plasma levels and patient data were used to construct concentration-time curves. By using this data, the duration of plasma levels above 4 mg/liter (four times the MIC) was calculated and analyzed. Twenty-seven patients were included. The median CTX peak level was 55 mg/liter (range, 19 to 98 mg/liter), the median CTX trough level was 12 mg/liter (range, 0.8 to 37 mg/liter), and the median DAC plasma level was 15 mg/liter (range, 1.5 to 48 mg/liter). Five patients (19%) had CTX plasma levels below 4 mg/liter at certain time points during treatment. In at least 83% of the time any patient was treated with CTX, the CTX plasma level stayed above 4 mg/liter. A dosing regimen of 1,000 mg of CTX given four times daily is likely to achieve adequate plasma levels in patients with AKI treated with CVVH. Dose reduction might be a risk for suboptimal treatment., (Copyright © 2016, American Society for Microbiology. All Rights Reserved.)
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- 2016
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11. The Size of the Radial Tuberosity is Not Related to the Occurrence of Distal Biceps Tendon Ruptures: A Case-Control Study.
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Kodde IF, van den Bekerom MP, Mulder PG, and Eygendaal D
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Introduction: Hypertrophic changes at the radial tuberosity have traditionally been related to distal biceps tendon degeneration and rupture. From supination to pronation of the forearm, the space available for the distal biceps tendon between de lateral ulna and radial bicipital tuberosity (RBT) decreases by almost 50%. A hypertrophic change at the radial tuberosity further reduces this space with impingement of the distal biceps tendon as a result. The purpose of this study was to evaluate whether the size of the RBT plays a role in the pathophysiology of distal biceps tendon ruptures., Materials and Methods: Twenty-two consecutive patients with a surgically proven distal biceps tendon rupture were matched to controls, in a 1:1 ratio. The size of the RBT was expressed as a ratio of the maximum diameter of the radius at the RBT to the diameter of the diaphysis just distal to the RBT (RD ratio), measured on standard radiographs of the elbow. The RD ratio of patients and matched controls were compared., Results: The mean RD ratio in control group was 1.25 and not significantly different from the mean 1.30 in the group of patients with a distal biceps tendon rupture. Each 0.1 point increase in RD ratio results in an estimated 60% increase of the rupture odds, which was not significant either., Conclusion: Based on the RD ratio on conventional radiographs of the elbow, there was no significant difference in RBT size between patients with a distal biceps tendon rupture and matched controls without biceps tendon pathology.
- Published
- 2016
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12. Refixation techniques and approaches for distal biceps tendon ruptures: a systematic review of clinical studies.
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Kodde IF, Baerveldt RC, Mulder PG, Eygendaal D, and van den Bekerom MP
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- Humans, Orthopedic Procedures adverse effects, Patient Outcome Assessment, Rupture surgery, Arm Injuries surgery, Orthopedic Fixation Devices, Orthopedic Procedures methods, Tendon Injuries surgery
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Background: Surgical fixation is the preferred method of treatment for the ruptured distal biceps tendon in active patients. To date, no fixation technique has been proven superior in a clinical setting. The purpose of the study was to systematically review the available literature on approach and fixation methods for distal biceps tendon repair in a clinical setting and to determine the optimal fixation methods of the distal biceps tendon on the radial tuberosity. Our hypothesis was that the outcomes would not be significantly different among the various fixation techniques and approaches., Methods: A systematic review of the available literature on anatomic reconstruction methods for distal biceps tendon ruptures was performed. The outcome measures evaluated were postoperative range of motion, elbow flexion and supination strength, and complication rates and types., Results: Forty articles were included, representing 1074 patients divided into 4 fixation groups: suture anchors, bone tunnels, interference screws, and cortical buttons. There was no significant difference in range of motion and strength between the different approaches and fixation techniques. Complications were significantly less common after the double-incision approach with bone tunnel fixation (P < .0005)., Conclusions: There were significantly fewer complications after the double-incision approach with bone tunnel fixation. The double-incision approach had significantly fewer complications than the single-incision anterior approach, and the bone tunnel fixation had significantly fewer complications than the other 3 fixation techniques. However, as the double-incision approach was used with bone tunnel fixation in 84% of cases, there was a strong interrelationship between these variables., (Copyright © 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.)
- Published
- 2016
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13. Defining indications for selective chest radiography in the first 24 hours after cardiac surgery.
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Tolsma M, Rijpstra TA, Rosseel PM, Scohy TV, Bentala M, Mulder PG, and van der Meer NJ
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- Aged, Cohort Studies, Female, Humans, Male, Radiography, Thoracic standards, Radiography, Thoracic statistics & numerical data, Time Factors, Cardiac Surgical Procedures, Postoperative Care, Radiography, Thoracic methods
- Abstract
Objective: In the intensive-care unit (ICU), chest radiographs (CXRs) are frequently obtained routinely for postoperative cardiac surgery patients, despite the fact that the efficacy of routine CXRs is known to be low. We investigated the efficacy and safety of CXRs performed after cardiac surgery for specified indications only., Methods: In this observational cohort study, we prospectively included all patients who underwent conventional major cardiac surgery by median sternotomy in the year 2012. On-demand CXRs could be obtained during the first postoperative period for specified indications only. A routine control CXR was performed on the morning of the first postoperative day for all patients who had not undergone a CXR before that time. The diagnostic and therapeutic efficacy values were calculated for all CXRs. Differences were tested using Fisher's exact test or χ(2) analysis., Results: A total of 1102 consecutive cardiac surgery patients were included in this study. The diagnostic efficacy of CXRs for major abnormalities was higher for the postoperative on-demand CXRs (n = 301; 27%) than for the routine CXRs taken the morning after surgery (n = 801; 73%) (6.6% vs 2.7%, P = .004). The therapeutic efficacy was higher for the on-demand CXRs, whereas the need for intervention after the next-morning, routine CXRs was limited to 5 patients (4.0% vs 0.6%, P < .001). None of these patients experienced a major adverse event., Conclusions: Defining clear indications for selective CXRs after cardiac surgery is effective and seems to be safe. This approach may significantly reduce the total number of CXRs performed, and will increase their efficacy., (Copyright © 2015 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.)
- Published
- 2015
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14. Current factors of fragility and delirium in vascular surgery.
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Raats JW, van Hoof-de Lepper CC, Feitsma MT, Meij JJ, Ho GH, Mulder PG, and van der Laan L
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- Age Factors, Aged, Aged, 80 and over, Chi-Square Distribution, Comorbidity, Critical Illness, Delirium diagnosis, Female, Geriatric Assessment, Homes for the Aged, Hospitals, Teaching, Humans, Incidence, Ischemia diagnosis, Ischemia epidemiology, Ischemia surgery, Logistic Models, Longitudinal Studies, Male, Middle Aged, Multivariate Analysis, Netherlands, Nursing Homes, Nutritional Status, Odds Ratio, Risk Factors, Treatment Outcome, Vascular Diseases diagnosis, Vascular Diseases epidemiology, Delirium epidemiology, Frail Elderly, Vascular Diseases surgery, Vascular Surgical Procedures adverse effects
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Background: Vascular surgery patients are frequently deemed to be in a frail clinical condition and at risk for delirium. Therefore, we evaluated the incidence and independent perioperative risk factors for delirium. In addition, we describe factors on frailty in the various vascular disease groups in current practice., Methods: This observational longitudinal study included 206 selected patients who were referred to a vascular surgery ward of a large-sized teaching hospital (Amphia Hospital, Breda, The Netherlands) for critical limb ischemia (n = 80), diabetic foot ulcers (n = 27), abdominal aortic aneurysm (AAA) (n = 62), and carotid surgery (n = 37) between April 2013 and December 2013. Data on factors that characterize frailty were collected. Delirium was scored using the Delirium Observation Screening Scale. Multivariable logistic regression analysis was performed to find independent risk factors for delirium., Results: Delirium was present in 24% of the critical limb ischemia patients, in 19% of the patients with a diabetic foot ulcer, in 7% of the patients with an AAA, and in 8% of the patients undergoing carotid surgery (P > 0.05). Of the patients with critical limb ischemia and a delirium, 53% were octogenarians. Multivariable stepwise logistic regression analysis revealed that history of delirium and nurse help at patient's home were independently associated with delirium. Patients with critical limb ischemia scored worse on factors related to frailty compared with the other disease groups in our current clinical practice on vascular surgery., Conclusions: Delirium is a frequent complication in vascular surgery clinical practice, especially in the elderly. Nurse visits at patients' homes and the Amphia Risk Score for delirium were independent risk factors for delirium in our study population. In this study, we identified patients with critical limb ischemia as the most frail and vulnerable., (Copyright © 2015 Elsevier Inc. All rights reserved.)
- Published
- 2015
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15. The effect of trauma and patient related factors on radial head fractures and associated injuries in 440 patients.
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Kodde IF, Kaas L, van Es N, Mulder PG, van Dijk CN, and Eygendaal D
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- Adolescent, Adult, Age Factors, Aged, Aged, 80 and over, Female, Humans, Injury Severity Score, Male, Middle Aged, Radius Fractures classification, Retrospective Studies, Sex Factors, Young Adult, Multiple Trauma complications, Radius Fractures complications, Radius Fractures etiology
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Background: Radial head fractures are commonly interpreted as isolated injuries, and it is assumed that the energy transferred during trauma has its influence on the risk on associated ipsilateral upper limb injuries. However, relationships between Mason classification, mechanism of injury, and associated injuries have been reported only once before in a relatively small population. The purpose of this study was to define whether trauma mechanism and patient related factors are of influence on the type of radial head fracture and associated injuries to the ipsilateral upper limb in 440 patients., Methods: The radiographs and medical records of 440 patients that presented with a fracture of the radial head were retrospectively analyzed. The medical records of all patients were searched for (1) the trauma mechanism and (2) associated injuries of the ipsilateral upper limb. The mechanism of injury was classified as being low-energy trauma (LET) or high-energy trauma (HET)., Results: Associated injuries to the ipsilateral upper limb were present in 46 patients (11%). The mean age of patients with associated injuries (52 years) was significantly higher compared to patients without associated injuries (47 years) (P = 0.038), and female patients with a radial head fracture were older than males. Injury patterns were classified as LET in 266 patients (60%) and as HET in 174 patients. HETs were significantly more common in young men. Associated injuries were not significantly different distributed between HET versus LET (P = 0.82)., Conclusions: Injuries concomitant to radial head fractures were present in 11% of patients and the risk for these associated injuries increases with age. Trauma mechanism did not have a significant influence on the risk of associated injuries. Complex elbow trauma in patients with a radial head fracture seems therefore to be suspected based on patient characteristics, rather than mechanism of injury.
- Published
- 2015
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16. Reliability of the Inverse Water Volumetry Method to Measure the Volume of the Upper Limb.
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Beek MA, te Slaa A, van der Laan L, Mulder PG, Rutten HJ, Voogd AC, Luiten EJ, and Gobardhan PD
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- Adult, Female, Healthy Volunteers, Humans, Lymphedema diagnosis, Lymphedema etiology, Male, Upper Extremity pathology, Young Adult, Anthropometry methods, Upper Extremity anatomy & histology
- Abstract
Background: Lymphedema of the upper extremity is a common side effect of lymph node dissection or irradiation of the axilla. Several techniques are being applied in order to examine the presence and severity of lymphedema. Measurement of circumference of the upper extremity is most frequently performed. An alternative is the water-displacement method. The aim of this study was to determine the reliability and the reproducibility of the "Inverse Water Volumetry apparatus" (IWV-apparatus) for the measurement of arm volumes., Patients and Methods: The IWV-apparatus is based on the water-displacement method. Measurements were performed by three breast cancer nurse practitioners on ten healthy volunteers in three weekly sessions., Results: The intra-class correlation coefficient, defined as the ratio of the subject component to the total variance, equaled 0.99. The reliability index is calculated as 0.14 kg. This indicates that only changes in a patient's arm volume measurement of more than 0.14 kg would represent a true change in arm volume, which is about 6% of the mean arm volume of 2.3 kg., Conclusion: The IWV-apparatus proved to be a reliable and reproducible method to measure arm volume.
- Published
- 2015
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17. A statistical model to predict the reduction of lichenification in atopic dermatitis.
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Glazenburg EJ, Mulder PG, and Oranje AP
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- Administration, Cutaneous, Adolescent, Adult, Aged, Aged, 80 and over, Dermatitis, Atopic complications, Dermatitis, Atopic diagnosis, Double-Blind Method, Female, Humans, Lichenoid Eruptions diagnosis, Lichenoid Eruptions etiology, Linear Models, Male, Middle Aged, Remission Induction, Severity of Illness Index, Time Factors, Treatment Outcome, Young Adult, Adrenal Cortex Hormones administration & dosage, Dermatitis, Atopic drug therapy, Fluticasone administration & dosage, Lichenoid Eruptions drug therapy, Models, Statistical
- Abstract
Acute symptoms of atopic dermatitis (AD), such as erythema, oedema/papulations and excoriations, respond quickly to topical corticosteroid treatment. Conversely, lichenification is regarded as a troublesome non-acute symptom of chronic AD which can take months of treatment before any improvement is seen. However, very little data actually support this opinion. Here, we analyse lichenification scores in 3 multicentre, short-term studies of nearly similar design. Two of these studies were active comparator dosage trials administered with either fluticasone propionate cream or ointment once or twice daily, the third study was a placebo control. In each of these 4-weeks studies lichenification was measured weekly. For the evaluation of the lichenification score over time a random-coefficients regression model was used. In all active treatments lichenification significantly improved (p < 0.005) within one week. Improvement continued afterwards, with > 80% of patients scoring no, very mild or mild lichenification after 4 weeks. We developed a model in which the lichenification score drops off linearly with the square root of time. The resulting convexly shaped downward time trend of lichenification was significant during all treatments and was significantly stronger during active treatment than with placebo. Fluticasone propionate can improve moderate to severe lichenification in a relative short period of time.
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- 2015
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18. A randomized controlled trial of single-class maintenance therapy with abacavir/lamivudine/zidovudine after standard triple antiretroviral induction therapy: final 96-week results from the FREE study.
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Sprenger HG, Langebeek N, Mulder PG, Ten Napel CH, Vriesendorp R, Hoepelman AI, Legrand JC, Koopmans PP, Bravenboer B, Ten Kate RW, Groeneveld P, Bierman W, van der Werf Ts, Gisolf E, and Richter C
- Subjects
- Adult, Aged, Belgium epidemiology, CD4 Lymphocyte Count, Clinical Protocols, Disease Progression, Drug Administration Schedule, Drug Combinations, Drug Therapy, Combination, Female, HIV Infections immunology, HIV Protease Inhibitors, HIV-1 immunology, Humans, Lipids, Male, Middle Aged, Netherlands epidemiology, Prospective Studies, RNA, Viral drug effects, Treatment Outcome, Viral Load, Anti-HIV Agents administration & dosage, Dideoxynucleosides administration & dosage, HIV Infections drug therapy, Lamivudine administration & dosage, Zidovudine administration & dosage
- Abstract
Objectives: The aim of the study was to test the antiviral efficacy of a triple nucleoside reverse transcriptase inhibitor (NRTI) regimen, with potential beneficial metabolic effects, as maintenance therapy after induction with dual NRTIs and a boosted protease inhibitor (PI)., Methods: An open-label, noninferiority study was carried out. Antiretroviral therapy (ART)-naïve patients with CD4 count ≤ 350 cells/μL and HIV-1 RNA >30000 copies/mL (n=207) were treated with zidovudine/lamivudine and lopinavir/ritonavir. After achieving HIV-1 RNA <50 copies/mL on two consecutive occasions between weeks 12 and 24 after baseline, 120 patients (baseline: median HIV-1 RNA 5.19 log10 copies/mL; median CD4 count 180 cells/μL) were randomized to receive abacavir/lamivudine/zidovudine (ABC/3TC/ZDV) (n=61) or to continue the PI-based ART (n=59)., Results: For the proportions of patients (intention-to-treat; missing=failure) with HIV-1 RNA <400 copies/mL (PI group, 66%; ABC/3TC/ZDV group, 71%) and <50 copies/mL (PI group, 63%; ABC/3TC/ZDV group, 62%) at 96 weeks, switching to ABC/3TC/ZDV was noninferior compared with continuing the PI regimen; the difference in failure rate (ABC/3TC/ZDV minus PI) was -4.4 percentage points [95% confidence interval (CI) -21.0 to +12.3 percentage points] and +0.4 percentage points (95% CI -16.9 to +17.7 percentage points), respectively. In the per protocol analysis, the difference in virological failure for HIV-1 RNA >400 copies/mL (0 of 39 patients in the PI group and two of 45 patients in the NRTI group) and for HIV-1 RNA >50 copies/mL (two of 39 and three of 45 patients, respectively) was +4.4 percentage points (95% CI -2.1 to +11.0 percentage points) and +1.5 percentage points (95% CI -8.6 to +11.7 percentage points), respectively, also showing noninferiority. Serum lipids significantly improved in the NRTI group, but not in the PI arm., Conclusions: A single-class NRTI regimen after successful induction with standard ART had similar antiviral efficacy compared to continuation of a PI-based regimen at 96 weeks after baseline, with improved serum lipids., (© 2014 British HIV Association.)
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- 2015
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19. Surgical site infection after multiple groin incisions in peripheral vascular surgery.
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van der Slegt J, Kluytmans JA, Mulder PG, Veen EJ, Ho GH, and van der Laan L
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- Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Prospective Studies, Groin surgery, Reoperation adverse effects, Surgical Wound Infection epidemiology, Vascular Surgical Procedures adverse effects
- Abstract
Background: Patients with peripheral arterial disease (PAD) are at risk for revision surgery in the groin and therefore at potential risk for surgical site infections (SSIs). In an observational study, a cohort of patients with peripheral arterial disease was followed to examine the effect of different incision intervals on SSI-free survival., Methods: Patients, needing peripheral vascular surgery because of PAD, were retrieved from a prospectively collected database on SSIs after vascular surgery between March 2009 and January 2012, the group consisting of 720 patients. Of these, 255 patients were selected (age 71.9±10.4 y). Cox proportional hazards models were used for event-history analyses. The effect of incision interval was estimated with adjustment for a number of potential confounders. Effects were quantified by means of hazard ratios (HRs) with 95% confidence intervals (CIs)., Results: No significant effect on the incision interval on SSI-free survival was observed. After separating incisional SSIs into superficial- and deep-seated, a significant linear trend effect of the groin incision interval on deep-incisional SSI development was observed: the shorter the interval, the higher the event rate (HR 1.5 per category, 95% CI 1.1-2.1, p=0.22). Besides the incision interval, the Rutherford classification was a significant risk factor for SSI development (HR 3.0; 95% CI 2.1-4.2; p<0.0005)., Conclusion: Revision surgery in the groin puts patients at risk for deep-incisional SSI. No effect on superficial incisional SSI development was observed. Besides the incision interval, the Rutherford classification was a significant risk factor for both superficial- and deep-incisional SSI. Quality improvement and better risk stratification schemes are suggested.
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- 2014
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20. The value of routine chest radiographs after minimally invasive cardiac surgery: an observational cohort study.
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Tolsma M, Bentala M, Rosseel PM, Gerritse BM, Dijkstra HA, Mulder PG, and van der Meer NJ
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- Aged, Cohort Studies, Female, Humans, Male, Middle Aged, Postoperative Period, Predictive Value of Tests, Prospective Studies, Radiography, Sternotomy, Cardiac Surgical Procedures, Minimally Invasive Surgical Procedures, Postoperative Complications diagnostic imaging, Thoracic Surgery, Video-Assisted
- Abstract
Background: Chest radiographs (CXRs) are obtained frequently in postoperative cardiac surgery patients. The diagnostic and therapeutic efficacy of routine CXRs is known to be low and the discussion regarding the safety of abandoning these CXRs after cardiac surgery is still ongoing. We investigated the value of routine CXRs directly after minimally invasive cardiac surgery., Methods: We prospectively included all patients who underwent minimally invasive cardiac surgery by port access, ministernotomy or bilateral video-assisted thoracoscopy (VATS) in the year 2012. A direct postoperative CXR was performed on all patients at ICU arrival. All CXR findings were noted, including whether they led to an intervention or not. The results were compared to the postoperative CXR results in patients who underwent conventional cardiac surgery by full median sternotomy over the same period., Main Results: A total of 249 consecutive patients were included. Most of these patients underwent valve surgery, rhythm surgery or a combination of both. The diagnostic efficacy for minor findings was highest in the port access and bilateral VATS groups (56% and 63% versus 28% and 45%) (p < 0.005). The diagnostic efficacy for major findings was also higher in these groups (8.9% and 11% versus 4.3% and 3.8%) (p = 0.010). The need for an intervention was most common after minimally invasive surgery by port access, although this difference was not statistically significant (p = 0.056)., Conclusions: The diagnostic efficacy of routine CXRs performed after minimally invasive cardiac surgery by port access or bilateral VATS is higher than the efficacy of CXRs performed after conventional cardiac surgery. A routine CXR after these procedures should still be considered.
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- 2014
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21. Azithromycin maintenance treatment in patients with frequent exacerbations of chronic obstructive pulmonary disease (COLUMBUS): a randomised, double-blind, placebo-controlled trial.
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Uzun S, Djamin RS, Kluytmans JA, Mulder PG, van't Veer NE, Ermens AA, Pelle AJ, Hoogsteden HC, Aerts JG, and van der Eerden MM
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- Aged, Disease Progression, Double-Blind Method, Female, Humans, Male, Middle Aged, Recurrence, Treatment Outcome, Anti-Bacterial Agents therapeutic use, Azithromycin therapeutic use, Maintenance Chemotherapy methods, Pulmonary Disease, Chronic Obstructive drug therapy
- Abstract
Background: Macrolide resistance is an increasing problem; there is therefore debate about when to implement maintenance treatment with macrolides in patients with chronic obstructive pulmonary disease (COPD). We aimed to investigate whether patients with COPD who had received treatment for three or more exacerbations in the previous year would have a decrease in exacerbation rate when maintenance treatment with azithromycin was added to standard care., Methods: We did a randomised, double-blind, placebo-controlled, single-centre trial in The Netherlands between May 19, 2010, and June 18, 2013. Patients (≥18 years) with a diagnosis of COPD who had received treatment for three or more exacerbations in the previous year were randomly assigned, via a computer-generated randomisation sequence with permuted block sizes of ten, to receive 500 mg azithromycin or placebo three times a week for 12 months. Randomisation was stratified by use of long-term, low-dose prednisolone (≤10 mg daily). Patients and investigators were masked to group allocation. The primary endpoint was rate of exacerbations of COPD in the year of treatment. Analysis was by intention to treat. This study is registered with ClinicalTrials.gov, number NCT00985244., Findings: We randomly assigned 92 patients to the azithromycin group (n=47) or the placebo group (n=45), of whom 41 (87%) versus 36 (80%) completed the study. We recorded 84 exacerbations in patients in the azithromycin group compared with 129 in those in the placebo group. The unadjusted exacerbation rate per patient per year was 1·94 (95% CI 1·50-2·52) for the azithromycin group and 3·22 (2·62-3·97) for the placebo group. After adjustment, azithromycin resulted in a significant reduction in the exacerbation rate versus placebo (0·58, 95% CI 0·42-0·79; p=0·001). Three (6%) patients in the azithromycin group reported serious adverse events compared with five (11%) in the placebo group. During follow-up, the most common adverse event was diarrhoea in the azithromycin group (nine [19%] patients vs one [2%] in the placebo group; p=0·015)., Interpretation: Maintenance treatment with azithromycin significantly decreased the exacerbation rate compared with placebo and should therefore be considered for use in patients with COPD who have the frequent exacerbator phenotype and are refractory to standard care., Funding: SoLong Trust., (Copyright © 2014 Elsevier Ltd. All rights reserved.)
- Published
- 2014
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22. Significant changes in the practice of chest radiography in Dutch intensive care units: a web-based survey.
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Tolsma M, Rijpstra TA, Schultz MJ, Mulder PG, and van der Meer NJ
- Abstract
Background: ICU patients frequently undergo chest radiographs (CXRs). The diagnostic and therapeutic efficacy of routine CXRs are now known to be low, but the discussion regarding specific indications for CXRs in critically ill patients and the safety of abandoning routine CXRs is still ongoing. We performed a survey of Dutch intensivists on the current practice of chest radiography in their departments., Methods: Web-based questionnaires, containing questions regarding ICU characteristics, ICU patients, daily CXR strategies, indications for routine CXRs and the practice of radiologic evaluation, were sent to the medical directors of all adult ICUs in the Netherlands. CXR strategies were compared between all academic and non-academic hospitals and between ICUs of different sizes. A comparison was made between the survey results obtained in 2006 and 2013., Results: Of the 83 ICUs that were contacted, 69 (83%) responded to the survey. Only 7% of responding ICUs were currently performing daily routine CXRs for all patients, and 61% of the responding ICUs were said never to perform CXRs on a routine basis. A daily meeting with a radiologist is an established practice in 72% of the responding ICUs and is judged to be important or even essential by those ICUs. The therapeutic efficacy of routine CXRs was assumed by intensivists to be lower than 10% or to be between 10 and 20%. The efficacy of 'on-demand' CXRs was assumed to be between 10 and 60%. There is a consensus between intensivists to perform a routine CXR after endotracheal intubation, chest tube placement or central venous catheterization., Conclusion: The strategy of daily routine CXRs for critically ill and mechanically ventilated patients has turned from being a common practice in 2006 to a rare current practice. Other routine strategies and an 'on-demand only' strategy have become more popular. Intensivists still assume the value of CXRs to be higher than the efficacy that is reported in the literature.
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- 2014
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23. Procalcitonin in the recognition of complications in critically ill surgical patients.
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Meyer ZC, Schreinemakers JM, Mulder PG, Schrauwen L, de Waal RA, Ermens AA, and van der Laan L
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- Abscess diagnosis, Abscess metabolism, Abscess mortality, Aged, Aged, 80 and over, Biomarkers blood, Calcitonin Gene-Related Peptide, Critical Illness, Female, Hospital Mortality, Humans, Ileus diagnosis, Ileus metabolism, Ileus mortality, Intensive Care Units, Ischemia diagnosis, Ischemia metabolism, Ischemia mortality, Male, Middle Aged, Postoperative Hemorrhage diagnosis, Postoperative Hemorrhage metabolism, Postoperative Hemorrhage mortality, Prognosis, Prospective Studies, Sepsis diagnosis, Sepsis mortality, Surgical Wound Infection diagnosis, Surgical Wound Infection mortality, Calcitonin blood, Protein Precursors blood, Sepsis metabolism, Surgical Wound Infection metabolism
- Abstract
Background: Procalcitonin (PCT) is a relatively new, promising indirect parameter for infection. In the intensive care unit (ICU) it can be used as a marker for sepsis. However, in the ICU there is a need for reliable markers for clinical deterioration in the critically ill patients. This study determines the clinical value of PCT concentrations in recognizing surgical complications in a heterogeneous group of general surgical patients in the ICU., Material and Methods: We prospectively collected PCT concentration data from April 2010 to June 2012 for all general surgical patients admitted to the ICU. Both the relationships between PCT levels and events (diagnostic and therapeutic interventions) as well as between PCT levels and surgical complications (abscesses, bleeding, perforation, ischemia, and ileus) were studied., Results: PCT concentrations were lower in patients who developed complications than those who did not develop complications on the same day, although not significant (P = 0.27). A 10% increase in PCT levels resulted in a 2% higher complication odds, but again this was not significant (odds ratio [OR], 1.020; 95% confidence interval [CI], 0.961-1.083; P = 0.51). Even a 20% or 30% increase in PCT concentrations did not result in higher complication probability (OR, 1.039; 95% CI, 0.927-1.165 and OR, 1.057; 95% CI, 0.897-1.246). Furthermore, an increase in PCT levels did not show an increase or a reduction in the number of diagnostic and therapeutic interventions., Conclusions: An increase in PCT levels does not help to predict surgical complications in critically ill surgical patients., (Copyright © 2014 Elsevier Inc. All rights reserved.)
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- 2014
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24. A novel finding: the effect of nurse practitioners on the relation to quality of life, anxiety, and depressive symptoms in vascular surgery.
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Donker JM, de Vries J, de Lepper CC, Wielders D, Ho GH, Mulder PG, and van der Laan L
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- Aged, Anxiety diagnosis, Anxiety prevention & control, Anxiety psychology, Clinical Competence, Depression diagnosis, Depression prevention & control, Depression psychology, Humans, Male, Middle Aged, Patient Handoff, Physician's Role, Prospective Studies, Risk Factors, Surveys and Questionnaires, Treatment Outcome, Workforce, Anxiety etiology, Depression etiology, Nurse Practitioners, Nurse's Role, Outcome and Process Assessment, Health Care, Quality of Life, Vascular Surgical Procedures adverse effects, Vascular Surgical Procedures psychology
- Abstract
Background: An increasing number of vascular surgery units expand their team with nurse practitioners (NPs) to optimize patient care. There are no previously performed studies which assessed the influence of NPs on patients' quality of life (QoL), anxiety, and depressive symptom levels. The transition in care from surgeon to NP in the vascular surgery unit of our hospital facilitated the comparison of both groups., Methods: A prospective study was undertaken to analyze the effect of NPs on QoL, anxiety, and depressive symptom scores. Two groups were analyzed: a group of patients treated by a vascular surgeon alone (surgeon group) and a group of patients treated by a NP supervised by a vascular surgeon (NP group). Patients completed the short version of the World Health Organization Quality of Life Assessment (WHOQOL-BREF), the State-Trait Anxiety Inventory (STAI), and the Center for Epidemiologic Studies Depression Scale (CES-D) questionnaires both before and after intervention., Results: Two hundred fourteen patients were included in our study. Within groups, there was a significant increase in physical QoL, with 5.2 points in the surgeon group and 4.4 points in the NP group. There was a significant decrease in anxiety scores (-3.8 points in the surgeon group and -5.4 points in the NP group). No differences were found for depressive symptoms. Between groups, no differences were found., Conclusions: The same improvements were found for QoL and anxiety scores in both groups. Vascular NPs are therefore competent to explain procedures and guide patients through vascular interventions., (Copyright © 2014 Elsevier Inc. All rights reserved.)
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- 2014
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25. Trends in the knowledge, attitudes and practices of travel risk groups toward prevention of hepatitis B: results from the repeated cross-sectional Dutch Schiphol Airport Survey 2002-2009.
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van Genderen PJ, van Thiel PP, Mulder PG, and Overbosch D
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- Aged, Airports, Female, Humans, Male, Netherlands epidemiology, Travel Medicine, Air Travel statistics & numerical data, Health Knowledge, Attitudes, Practice, Hepatitis B prevention & control
- Abstract
Background: Previous studies investigating the travellers' knowledge, attitudes and practices (KAP) profile indicated an important educational need among those travelling to risk destinations., Methods: In the years 2002-2009 an annually repeated cross-sectional questionnaire-based survey was conducted at the Dutch Schiphol Airport with the aim to study trends in KAP of travel risk groups toward prevention of hepatitis B. The frequently encountered risk groups last-minute travellers, solo-travellers, business travellers, travellers visiting friends and relatives (VFR) and elderly travellers were specifically studied., Results: A total of 3045 respondents were included in the survey. Travellers to destinations with a high risk for hepatitis B had significantly less accurate risk perceptions (knowledge) than travellers to low-risk destinations but no differences were observed in past risk-taking attitude. Protection rates against hepatitis B were significantly higher in travellers to high-risk destinations. There was a positive trend over the years in the proportion of travellers to high-risk destinations seeking travel health advice. In accordance with this, trend analyses also indicated rising protection rates against hepatitis B. No significant trends in protection over time were observed for the travel risk groups., Conclusions: The results of this repeated cross-sectional survey suggest an annual 10% increase in protection rates against hepatitis B in Dutch travellers, both to destinations with a high risk and to destinations with a lower risk of hepatitis B, but these trends in protection rates were not observed for the travel risk groups to high-risk destinations. The KAP profile of last-minute travellers and (to a lesser extent) VFRs showed an increased relative risk in hepatitis B, irrespective of the travel destination, underlining the need for specific targeting of these travel risk groups., (Copyright © 2013 Elsevier Ltd. All rights reserved.)
- Published
- 2014
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26. The knowledge, attitudes and practices of wintersun vacationers to the Gambia toward prevention of malaria: is it really that bad?
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van Genderen PJ, Mulder PG, and Overbosch D
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Female, Gambia epidemiology, Humans, Male, Middle Aged, Netherlands epidemiology, Surveys and Questionnaires, Young Adult, Health Knowledge, Attitudes, Practice, Malaria epidemiology, Malaria prevention & control, Travel
- Abstract
Background: Each year clusters of imported malaria cases are observed in Dutch wintersun vacationers returning from The Gambia. To gain more insight in the travel health preparation and awareness of these travellers, the knowledge, attitudes and practices (KAP) of this travel group was studied by analysing the data of the Continuous Dutch Schiphol Airport Survey., Methods: In the years 2002 to 2009 a questionnaire-based survey was conducted at the Dutch Schiphol Airport with the aim to study the KAP, i.e. accuracy of risk perception ("knowledge"), intended risk-avoiding behaviour ("attitude") and use of personal protective measures and malaria chemoprophylaxis ("practice") toward prevention malaria in travellers to The Gambia. Travellers to other high-risk destinations served as controls., Results: The KAP of travellers to The Gambia toward prevention of malaria was significantly better than that observed in other travellers. Trend analyses indicated that attitude improved over time in both groups but knowledge did not change. Only in travellers to high-risk countries other than The Gambia significant increases in protection rates were observed over time., Conclusions: The KAP of travellers to The Gambia toward prevention of malaria was better than that observed in travellers to destinations other than The Gambia. Trend analyses revealed a significant improvement of intended risk avoiding behaviour but not in protection rates or risk perception.
- Published
- 2014
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27. Midterm follow-up of quality of life following peripheral bypass surgery.
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Donker JM, te Slaa A, de Vries J, Ho GH, Mulder PG, and van der Laan L
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- Aged, Aged, 80 and over, Edema etiology, Edema prevention & control, Edema psychology, Female, Humans, Intermittent Pneumatic Compression Devices, Male, Middle Aged, Netherlands, Peripheral Arterial Disease diagnosis, Peripheral Arterial Disease mortality, Peripheral Arterial Disease psychology, Proportional Hazards Models, Risk Factors, Stockings, Compression, Surveys and Questionnaires, Survival Rate, Time Factors, Treatment Outcome, Blood Vessel Prosthesis Implantation adverse effects, Blood Vessel Prosthesis Implantation mortality, Peripheral Arterial Disease surgery, Quality of Life
- Abstract
Background: Peripheral bypass surgery is an important treatment option for patients with peripheral arterial disease. Short-term results of quality of life (QoL) after peripheral bypass surgery showed an increase in QoL at 3 months. Little is known about QoL at more than 2 years of follow-up. This study was performed to analyze QoL at midterm follow-up, and overall survival after peripheral bypass surgery., Methods: This study was part of a randomized control trial in which intermittent pneumatic compression was compared with compression stockings in the treatment of edema after bypass surgery. Patients completed a QoL questionnaire before surgery, 14 days and 3 months postoperatively, and at least 2 years after the original operation. A survival analysis was performed to calculate survival for patients who received both autologous and polytetrafluoroethylene (PTFE) bypass grafts., Results: The original study consisted of 93 patients, and QoL midterm follow-up was achieved for 42. QoL scores at midterm follow-up were comparable to the preoperative baseline scores for both the autologous and the PTFE groups. Three-year survival rates were 75% and 54%, respectively., Conclusion: Although peripheral bypass surgery significantly increased QoL 3 months after surgery, midterm follow-up showed a return to baseline scores. No significant difference was found in survival between patients in the autologous and PTFE groups., (Copyright © 2013 Elsevier Inc. All rights reserved.)
- Published
- 2013
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28. Association of perioperative troponin and atrial fibrillation after coronary artery bypass grafting.
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Koolen BB, Labout JA, Mulder PG, Gerritse BM, Rijpstra TA, Bentala M, Rosseel PM, and van der Meer NJ
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- Aged, Atrial Fibrillation diagnosis, Atrial Fibrillation etiology, Biomarkers blood, Cardiotonic Agents therapeutic use, Female, Humans, Length of Stay, Logistic Models, Male, Middle Aged, Multivariate Analysis, Odds Ratio, Retrospective Studies, Risk Factors, Time Factors, Treatment Outcome, Atrial Fibrillation blood, Coronary Artery Bypass adverse effects, Troponin T blood
- Abstract
Objectives: Prediction of atrial fibrillation (AF) after coronary artery bypass grafting (CABG) may lead to preventive or early treatment and improved outcome. We investigated the association of serial perioperative cardiac troponin T (cTNT) measurements with postoperative AF in patients undergoing CABG., Methods: In a retrospective analysis of prospectively collected data, 3148 patients undergoing elective CABG were evaluated. cTNT values were routinely determined before the start of surgery (cTNT0), at arrival on the intensive care unit (cTNT1) and 8-12 h later (cTNT2). Measurement of cTNT was continued until the peak value was reached. The development of AF during hospital stay was scored. The association between cTNT (cTNT0, cTNT1, cTNT2 and cTNTmax in first 48 h) and AF was calculated in univariable and multivariable analysis., Results: AF occurred in 1080 (34%) patients. cTNT0, cTNT2 and cTNTmax were significantly and positively associated with postoperative AF (P < 0.001) in a univariable analysis, whereas a trend was seen for cTNT1 (P = 0.051). Advanced age, inotropic support and postoperative infection were independently associated with postoperative AF after logistic regression analysis, but cTNT was not. Categorizing patients by inotropic support into categories of inotropic support duration (none, <48 h, >48 h), the mean cTNT values were significantly higher among patients with AF in each category (all P < 0.001). Perioperative cTNT was significantly higher in patients with postoperative complications, longer hospital stay and reduced in-hospital survival., Conclusions: Perioperative cTNT is univariably associated with postoperative AF after CABG, but not independently. Further, no clinically useful cut-off point for preventive or early treatment could be identified. Both perioperative cTNT and postoperative AF are associated with negative outcome and prolonged hospital stay.
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- 2013
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29. A double-blind randomized study comparing plasma level-targeted dose imipramine and high-dose venlafaxine in depressed inpatients.
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Vermeiden M, Mulder PG, van den Broek WW, Bruijn JA, and Birkenhäger TK
- Subjects
- Adult, Aged, Aged, 80 and over, Antidepressive Agents blood, Cyclohexanols blood, Dose-Response Relationship, Drug, Double-Blind Method, Female, Humans, Imipramine blood, Inpatients, Male, Middle Aged, Psychiatric Status Rating Scales, Venlafaxine Hydrochloride, Antidepressive Agents therapeutic use, Cyclohexanols therapeutic use, Depressive Disorder, Major blood, Depressive Disorder, Major drug therapy, Imipramine therapeutic use
- Abstract
Objective: To compare the efficacy of plasma level-targeted dose imipramine and high-dose venlafaxine in depressed inpatients in a randomized double-blind study., Methods: The study included 85 patients with a diagnosis of major depressive episode according to the DSM IV criteria and a 17-item Hamilton Rating Scale for Depression (HAM-D) score ≥ 17. Patients were randomized to imipramine or venlafaxine. The dose of imipramine was adjusted for each patient to a predefined blood level of 200-300 ng/ml. The dose of venlafaxine was increased gradually to 300-375 mg/day. Efficacy was evaluated after 7 weeks of treatment., Results: The mean age of the study group was 54.5 (range 29-82) years. There was no significant difference according to the primary outcome criterion of a ≥50% reduction on the HAM-D score: 17 of 43 (39.5%) patients on imipramine were responders compared to 21 of 42 (50%) patients on venlafaxine. When considering remission as outcome criterion (HAM-D score ≤ 7), 10 of 43 (23.3%) patients on imipramine were remitters compared to 15 of 42 (35.7%) patients on venlafaxine; again, no significant difference. When analysing a subpopulation of patients without psychotic features, with remission as outcome criterion, a significant difference was found: 5 of 34 (14.7%) patients on imipramine were remitters compared to 12 of 31 (38.7%) patients on venlafaxine., Conclusions: The present study used optimal doses in depressed inpatients and showed that venlafaxine is at least equal in efficacy to imipramine. The results in the subgroup without psychotic features indicate a possible superiority of venlafaxine., (Copyright © 2013 Elsevier Ltd. All rights reserved.)
- Published
- 2013
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30. Determining the clinical value of lactate in surgical patients on the intensive care unit.
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Meyer ZC, Schreinemakers JM, Mulder PG, de Waal RA, Ermens AA, and van der Laan L
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- APACHE, Adult, Aged, Aged, 80 and over, Biomarkers blood, Female, Humans, Male, Middle Aged, Organ Dysfunction Scores, Postoperative Complications blood, Predictive Value of Tests, Retrospective Studies, Risk Factors, Critical Care, Intensive Care Units, Lactates blood, Postoperative Complications epidemiology
- Abstract
Background: The purpose of this study is first to assess the clinical value of lactate concentrations by comparison with clinical scoring systems, and second to determine the value of lactate levels in clinical decisions as ordering diagnostic and therapeutic (re)interventions in the population of critically ill surgical patients on the intensive care unit (ICU)., Materials and Methods: From April 2010 to June 2011, the L-lactate concentrations, Sequential Organ Failure Assessment (SOFA) score and Acute Physiological and Chronic Health Evaluation II (APACHE II) score were prospectively collected in surgical patients (n = 174) admitted into the ICU. The L-Lactate and scoring systems were related to events defined as performing computed tomography-scans, laparotomy, ultrasonography, and flexible endoscopy. Furthermore, all surgical complications were also registered., Results: For SOFA scores above four points, mean lactate concentrations increased 4.5% for each point increase in SOFA score (P < 0.0005). In APACHE II scores above 16 points, mean lactate concentrations increased 2.9% for each point increase in APACHE II score (P < 0.0005). Each 10% increase in lactate concentration showed a 3.3% higher odds for a first event (OR 1.033; P = 0.26). Lactate levels did not correspond with more complications (OR 0.968; P = 0.52)., Conclusions: There is a significant positive relationship between lactate concentrations, high SOFA scores, and APACHE II scores. However, the important outcome is that lactate seems to be a poor predictor for surgical complications in the critically ill surgical patient in the ICU., (Copyright © 2013 Elsevier Inc. All rights reserved.)
- Published
- 2013
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31. Determining host suitability of pecan for stored-product insects.
- Author
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Shufran AA, Mulder PG, Payton ME, and Shufran KA
- Subjects
- Animals, Feeding Behavior, Nuts physiology, Reproduction, Time Factors, Carya physiology, Coleoptera physiology, Moths physiology
- Abstract
A no-choice test was performed to determine survival and reproductive capacity of stored-product insect pests on pecan, Carya illinoensis (Wangenheim) Koch. Insects used were Indianmeal moth, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae); sawtoothed grain beetle, Oryzaephilus surinamensis (L.) (Coleoptera: Cucujidae); red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae); lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae); and rusty grain beetle, Cryptolestes ferrugineus (Stephens) (Coleoptera: Laemophloeidae). Fifty adults of each beetle species or 10 reproductive pairs of P. interpunctella adults were placed in 0.5-liter containers with either whole-shell pecans, cracked-shell pecans, randomly selected in-shell pecans, pecan nutmeats, cracked wheat, or glass beads and held at 28 degrees C, 60-70% relative humidity, and 16:8 (L:D) photoperiod for 2, 4, 6, and 8 wk. Four replications of each insect-diet-interval combination were performed. Larvae of P. interpunctella, O. surinamensis, T. castaneum, C. ferrugineus, and adult P. interpunctella and O. surinamensis developed on cracked and nutmeat pecan diets. R. dominica did not complete reproduction on pecans. Knowledge that these pests can reproduce on stored pecan will assist pecan growers, accumulators, and storage facilities in preventing insect outbreaks on their product.
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- 2013
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32. Profiling of humoral response to influenza A(H1N1)pdm09 infection and vaccination measured by a protein microarray in persons with and without history of seasonal vaccination.
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Huijskens EG, Reimerink J, Mulder PG, van Beek J, Meijer A, de Bruin E, Friesema I, de Jong MD, Rimmelzwaan GF, Peeters MF, Rossen JW, and Koopmans M
- Subjects
- Adolescent, Adult, Aged, Animals, Antibodies, Viral biosynthesis, Antibodies, Viral immunology, Birds, Female, Hemagglutination Inhibition Tests, Hemagglutinin Glycoproteins, Influenza Virus blood, Hemagglutinin Glycoproteins, Influenza Virus immunology, Humans, Influenza Vaccines administration & dosage, Influenza in Birds immunology, Influenza in Birds virology, Influenza, Human blood, Influenza, Human immunology, Influenza, Human virology, Male, Middle Aged, Protein Array Analysis, Vaccination methods, Antibodies, Viral blood, Influenza A Virus, H1N1 Subtype immunology, Influenza Vaccines immunology, Influenza, Human prevention & control, Vaccination statistics & numerical data
- Abstract
Background: The influence of prior seasonal influenza vaccination on the antibody response produced by natural infection or vaccination is not well understood., Methods: We compared the profiles of antibody responses of 32 naturally infected subjects and 98 subjects vaccinated with a 2009 influenza A(H1N1) monovalent MF59-adjuvanted vaccine (Focetria, Novartis), with and without a history of seasonal influenza vaccination. Antibodies were measured by hemagglutination inhibition (HI) assay for influenza A(H1N1)pdm09 and by protein microarray (PA) using the HA1 subunit for seven recent and historic H1, H2 and H3 influenza viruses, and three avian influenza viruses. Serum samples for the infection group were taken at the moment of collection of the diagnostic sample, 10 days and 30 days after onset of influenza symptoms. For the vaccination group, samples were drawn at baseline, 3 weeks after the first vaccination and 5 weeks after the second vaccination., Results: We showed that subjects with a history of seasonal vaccination generally exhibited higher baseline titers for the various HA1 antigens than subjects without a seasonal vaccination history. Infection and pandemic influenza vaccination responses in persons with a history of seasonal vaccination were skewed towards historic antigens., Conclusions: Seasonal vaccination is of significant influence on the antibody response to subsequent infection and vaccination, and further research is needed to understand the effect of annual vaccination on protective immunity.
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- 2013
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33. The role of C-reactive protein and the SOFA score as parameter for clinical decision making in surgical patients during the intensive care unit course.
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Meyer ZC, Schreinemakers JM, Mulder PG, de Waal RA, Ermens AA, and van der Laan L
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- Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Multiple Organ Failure etiology, Postoperative Complications, C-Reactive Protein metabolism, Critical Illness, Decision Making, Intensive Care Units, Multiple Organ Failure blood, Multiple Organ Failure diagnosis
- Abstract
Introduction: C-reactive Protein (CRP) is used next to clinical scoring systems to recognize critically ill patients prone to develop complications on the Intensive Care Unit (ICU). The purpose of this study is to assess the predictive value of CRP as parameter for clinical deterioration and/or clinical decision making as ordering diagnostic procedures or performing (re)interventions. Also, we wanted to determine the value of CRP in early detection of surgical complications in the critically ill general surgical patient in the ICU and its interpretation in adjunct to a clinical scoring system, the Sequential Organ Failure Assessment Score., Materials and Methods: In our prospective observational study, 174 general surgical patients admitted into the Intensive Care Unit were included. We evaluated the Sequential Organ Failure Assessment Score (SOFA) and daily measured the C-reactive protein (CRP) concentrations. All events (diagnostic or therapeutic interventions) and surgical complications were registered. Then the relationship between SOFA score, CRP concentrations, events and complications were studied., Results: Each 10% increase in CRP resulted in a 3.5% increase in the odds of an event (odds ratio 1.035, 95% CI: 1.004-1.068; p = 0.028). However, an increase in CRP levels did not lead to a higher odds of complication (OR 0.983, 95% CI: 0.932-1.036; p = 0.52). When adjusting for the SOFA score the effect of CRP on the probability of a first event remained significant (OR 1.033, 95% CI: 1.001-1.065; p = 0.046), and again did not significantly affect the complication probability (OR 0.980, 95% CI: 0.929-1.035; p = 0.46)., Conclusions: An increase in C-reactive protein is a poor parameter for early detection of complications in the critically ill surgical patient in the ICU by means of diagnostic procedures or therapeutic (re)-interventions.
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- 2013
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34. Trends in the knowledge, attitudes and practices of travel risk groups towards prevention of malaria: results from the Dutch Schiphol Airport Survey 2002 to 2009.
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van Genderen PJ, van Thiel PP, Mulder PG, and Overbosch D
- Subjects
- Adolescent, Adult, Aged, Airports, Female, Humans, Male, Middle Aged, Netherlands, Surveys and Questionnaires, Young Adult, Health Knowledge, Attitudes, Practice, Malaria prevention & control, Travel
- Abstract
Background: Previous studies investigating the travellers' knowledge, attitudes and practices (KAP) profile indicated an important educational need among those travelling to risk destinations. Initiatives to improve such education should target all groups of travellers, including business travellers, those visiting friends and relatives (VFRs), and elderly travellers., Methods: In the years 2002 to 2009, a questionnaire-based survey was conducted at the Dutch Schiphol Airport with the aim to study trends in KAP of travel risk groups towards prevention of malaria. The risk groups last-minute travellers, solo-travellers, business travellers, VFRs and elderly travellers were specifically studied., Results: A total of 3,045 respondents were included in the survey. Travellers to destinations with a high risk for malaria had significantly more accurate risk perceptions (knowledge) than travellers to low-risk destinations. The relative risk for malaria in travellers to high-risk destinations was probably mitigated by higher protection rates against malaria as compared with travellers to low risk destinations. There were no significant differences in intended risk-taking behaviour. Trend analyses showed a significant change over time in attitude towards more risk-avoiding behaviour and towards higher protection rates against malaria in travellers to high-risk destinations. The KAP profile of last-minute travellers substantially increased their relative risk for malaria, which contrasts to the slight increase in relative risk of solo travellers, business travellers and VFRs for malaria., Conclusions: The results of this sequential cohort survey in Dutch travellers suggest an annual 1.8% increase in protection rates against malaria coinciding with an annual 2.5% decrease in intended risk-seeking behaviour. This improvement may reflect the continuous efforts of travel health advice providers to create awareness and to propagate safe and healthy travel. The KAP profile of last-minute travellers, in particular, substantially increased their relative risk for malaria, underlining the continuous need for personal protective measures and malaria chemoprophylaxis for this risk group.
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- 2012
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35. Six months treatment with ibopamine in patients with hypotony after vitreoretinal surgery for retinal detachment, uveitis or penetrating trauma.
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Ganteris-Gerritsen E, Ugahary LC, Jansen J, Mulder PG, Cohen AF, and van Meurs JC
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- Adult, Aged, Aged, 80 and over, Chronic Disease, Deoxyepinephrine therapeutic use, Female, Humans, Male, Middle Aged, Mydriatics therapeutic use, Ocular Hypotension etiology, Ophthalmic Solutions therapeutic use, Retinal Detachment surgery, Tonometry, Ocular, Deoxyepinephrine analogs & derivatives, Dopamine Agonists therapeutic use, Eye Injuries, Penetrating complications, Ocular Hypotension drug therapy, Retinal Detachment complications, Uveitis complications, Vitreoretinal Surgery adverse effects
- Abstract
Purpose: To evaluate the effectiveness of 6 months treatment with ibopamine eye drops in raising the intraocular pressure in patients with therapy-resistant hypotony after vitreoretinal surgery for proliferative vitreoretinopathy secondary to rhegmatogenous retinal detachment or penetrating trauma., Methods: A 2% ibopamine eye drop was topically administered 3 times daily during 24 weeks., Results: Seventeen patients were included. Nine patients were able to continue their treatment up to 24 weeks; their mean intraocular pressure increase was 2.11 mmHg (SE, 0.56; 95% confidence interval, 0.96 to 3.23; P < 0.0005) in comparison with baseline values. Eight patients stopped using ibopamine before 24 weeks because of complains of follicular conjunctivitis or irritation without clinically observable conjunctivitis. In these patients a comparable increase in intraocular pressure was observed up to treatment discontinuation., Conclusion: This study confirms that the use of topical ibopamine may result in a sustained increase in intraocular pressure of >2 mmHg in the majority of patients, but was only well tolerated in half of them. There may only be a few patients, however, who will clinically benefit from this rise in intraocular pressure. A better formulation or method of administration would be needed.
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- 2012
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36. Analgesic effect of breast milk versus sucrose for analgesia during heel lance in late preterm infants.
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Simonse E, Mulder PG, and van Beek RH
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- Administration, Oral, Adult, Female, Follow-Up Studies, Gestational Age, Humans, Infant, Newborn, Infant, Premature, Infant, Premature, Diseases, Male, Netherlands, Pain diagnosis, Pain Management methods, Pain Measurement, Retrospective Studies, Severity of Illness Index, Treatment Outcome, Analgesia methods, Blood Specimen Collection adverse effects, Breast Feeding, Milk, Human, Pain etiology, Sucrose administration & dosage, Sweetening Agents administration & dosage
- Abstract
Objective: The purpose of this trial was to investigate whether breast milk (either breastfed or bottle-fed) has a better analgesic effect than sucrose in newborns born at a postmenstrual age between 32 and 37 weeks., Methods: We conducted a randomized controlled trial at a secondary care neonatal unit in the Netherlands on 71 preterm neonates (postmenstrual age at birth 32-37 weeks), undergoing heel lance with an automated piercing device. Newborns were randomly assigned to breast milk (either breastfed or bottle-fed) administered during heel lance or oral sucrose administered before heel lance. We assessed the Premature Infant Pain Profile (PIPP) score (range, 0-21) to investigate whether there was a difference in pain score between neonates receiving breast milk and those receiving sucrose solution., Results: There was no significant difference in mean PIPP score between neonates receiving breast milk (6.1) and those receiving sucrose (5.5), with a mean difference of 0.6 (95% confidence interval -1.6 to 2.8; P = .58)., Conclusions: From this study, it cannot be concluded that breast milk has a better analgesic effect than sucrose in late preterm infants. From the results, it follows with 95% confidence that the analgesic effect of breast milk is not >1.6 points better and not > 2.8 points worse on the PIPP scale (SD 3.7) than the analgesic effect of sucrose in late preterm infants.
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- 2012
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37. Quality of life in perspective to treatment of postoperative edema after peripheral bypass surgery.
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Öztürk Ç, te Slaa A, Dolmans DE, Ho GH, de Vries J, Mulder PG, and van der Laan L
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- Adult, Aged, Aged, 80 and over, Analysis of Variance, Chi-Square Distribution, Edema etiology, Edema psychology, Female, Hospitals, Teaching, Humans, Linear Models, Male, Middle Aged, Netherlands, Peripheral Arterial Disease psychology, Surveys and Questionnaires, Time Factors, Treatment Outcome, Blood Vessel Prosthesis Implantation adverse effects, Edema prevention & control, Intermittent Pneumatic Compression Devices, Peripheral Arterial Disease surgery, Quality of Life, Stockings, Compression, Vascular Grafting adverse effects
- Abstract
Background: To examine the effects of peripheral bypass surgery on patients' quality of life (QoL) as well as to compare two treatment modalities to reduce postoperative edema with regard to patients' QoL., Methods: This was a randomized controlled trial set in the department of vascular surgery in a nonacademic teaching hospital. Ninety-three patients (mean age, 70 years; 33% Rutherford 5-6), enrolled between August 2006 and September 2009, who underwent peripheral bypass surgery (autologous 57, polytetrafluoroethylene 36). Patients were assigned to intermittent pneumatic compression (n = 46) or to compression stockings (n = 47). The main outcome measure was QoL, measured with the World Health Organization Quality of Life assessment instrument (short form: WHOQOL-BREF)., Results: QoL improved on the domain of Physical Health by 7.18 points (P < 0.001 [range, 0-100]) after 2 weeks and by 10.03 points (P < 0.001) after 3 months. Patients who received a polytetrafluoroethylene bypass scored 0.45 points (P = 0.0008 [range, 1-5]) lower at baseline on Global QoL than patients who received an autologous bypass. Type of bypass or edema treatment method did not affect the improvements. Edema did not correlate with QoL., Conclusion: Improvement in QoL on the domain Physical Health following femoropopliteal bypass surgery was found as soon as 2 weeks after surgery. Improvement in QoL domains was not influenced by the type of bypass reconstruction. No specific effects of edema on QoL were detected., (Copyright © 2012 Annals of Vascular Surgery Inc. Published by Elsevier Inc. All rights reserved.)
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- 2012
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38. Magnetic resonance imaging reveals edema-like changes not only subcutaneously, but also in muscle tissue after femoropopliteal bypass surgery.
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te Slaa A, Tetteroo E, Mulder PG, Ho GH, Vos LD, Moll FL, and van der Laan L
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- Constriction, Pathologic, Edema etiology, Edema pathology, Humans, Netherlands, Peripheral Arterial Disease diagnosis, Peripheral Arterial Disease pathology, Predictive Value of Tests, Severity of Illness Index, Time Factors, Treatment Outcome, Edema diagnosis, Femoral Artery surgery, Magnetic Resonance Imaging, Muscle, Skeletal pathology, Peripheral Arterial Disease surgery, Popliteal Artery surgery, Subcutaneous Tissue pathology, Vascular Surgical Procedures adverse effects
- Abstract
Background: The pathophysiological mechanisms that induce postrevascularization edema after femoropopliteal bypass surgery are not completely understood. Reperfusion-associated injury to revascularized tissue and damage to lymphatic structures are both likely to play a role. Aim of this study was to study edema formation after peripheral bypass surgery with magnetic resonance imaging., Materials and Methods: Nine patients suffering from severe peripheral arterial occlusive disease were subjected to magnetic resonance imaging scans before and 1 week after autologous femoropopliteal or femorocrural bypass surgery., Results: A 12% increase in volume of the upper legs and an 11% increase in volume of the lower legs were measured in patients postoperatively. The increase of volume was largely due to expansion of the subcutaneous compartments: a 35% increase in the upper legs and a 41% increase in the lower legs. Edema in the upper legs was predominantly located medially at the site of the surgical wound. In contrast, edema in the lower legs was homogenously distributed around the entire leg circumference. The muscle compartment showed no significant change of volume. However, in the majority of patients, edema-like changes were seen in selected muscles as well after a peripheral bypass reconstruction., Conclusion: Swelling of the subcutaneous compartments is mainly responsible for the volume increases in upper and lower legs similar to lymphatic edema. In addition, in a majority of patients, edema-like changes in selected muscles were seen especially in the upper legs. Reperfusion-associated injury as a cause of these changes cannot be ruled out., (Copyright © 2012 Annals of Vascular Surgery Inc. Published by Elsevier Inc. All rights reserved.)
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- 2012
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39. Trends in knowledge, attitudes, and practices of travel risk groups toward prevention of hepatitis A: results from the Dutch Schiphol Airport survey 2002 to 2009.
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van Genderen PJ, van Thiel PP, Mulder PG, and Overbosch D
- Subjects
- Adult, Airports, Female, Hepatitis A Vaccines, Humans, Logistic Models, Longitudinal Studies, Male, Netherlands, Risk, Surveys and Questionnaires, Health Knowledge, Attitudes, Practice, Hepatitis A prevention & control, Travel
- Abstract
Background: Previous studies investigating the travelers' knowledge, attitudes, and practices (KAP) profile indicated an important educational need among those traveling to risk destinations. Initiatives to improve such education should target all groups of travelers, including business travelers, those visiting friends and relatives (VFR), and older adult travelers., Methods: In the years 2002 to 2009, a longitudinal questionnaire-based survey was conducted at the Dutch Schiphol Airport with the aim to study trends in KAP of travel risk groups toward prevention of hepatitis A. The risk groups last-minute travelers, solo travelers, business travelers, travelers VFR, and older adult travelers were specifically studied., Results: A total of 3,045 respondents were included in the survey. Travelers to destinations with a high risk for hepatitis A had significantly less accurate risk perceptions (knowledge) than travelers to low-to-intermediate-risk destinations. The relative risk for hepatitis A in travelers to high-risk destinations was probably mitigated by less intended risk-seeking behavior and by higher protection rates against hepatitis A as compared with travelers to low-to-intermediate-risk destinations. Logistic regression analyses showed that an age >60 years was the only significant determinant for improvement of their knowledge. Trend analyses showed a significant change over time in attitude toward more risk-avoiding behavior and toward higher protection rates against hepatitis A in travelers to high-risk destinations. The KAP profile of the risk groups travelers VFR (irrespective of hepatitis A risk of their destination) and solo as well as last-minute travelers to high-risk destinations substantially increased their relative risk for hepatitis A., Conclusions: The results of this longitudinal survey in Dutch travelers suggest an annual 5% increase in protection rates against hepatitis A coinciding with an annual 1% decrease in intended risk-seeking behavior. This improvement may reflect the continuous efforts of travel health advice providers to create awareness and to propagate safe and healthy travel. The KAP profile of travelers visiting friends and relatives (VFR) and solo as well as last-minute travelers to high-risk destinations substantially increased their relative risk for hepatitis A. These risk groups should be candidates for targeted interventions., (© 2011 International Society of Travel Medicine.)
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- 2012
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40. Disaster-related injury and predictors of health complaints after exposure to a natural disaster: an online survey.
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Marres GM, Leenen LP, de Vries J, Mulder PG, and Vermetten E
- Abstract
Objectives To study short- and long-term effects of experiencing a disaster in repatriated injured survivors and the differential effect of injury, need for medical treatment, loss of loved ones and danger to life on both physical and mental health. Design Prospective online study. Setting Open online survey among Dutch survivors of the 2004 Asian tsunami. Participants Of the estimated total of 464 Dutch survivors, the authors recruited 144 unique respondents (59 men and 85 women) with a total of 175 assessments made in various time periods. Main outcome measures Health outcomes were Symptom Checklist 90 (SCL-90), Impact of Event Scale (original version, in Dutch) and Beck Depression Inventory II. Correlations were calculated with socio-demographic as well as disaster-related factors: physical injury, medical care, loss of loved ones and duration of threat to life. Assessments were clustered in four post-disaster time periods (0-3, 4-6, 7-30 and 31-48 months). Results Across these periods, SCL-90 scores were significantly higher than the reference population (p<0.001), with a significant linear downward trend between the groups over time (p=0.001). The same pattern occurred for the Impact of Event Scale (p<0.001) and the Beck Depression Inventory II (p=0.002). Physical injury, medical care or loss of loved ones was not associated with higher total SCL-90 scores or somatic subscores. Both duration of threat to life and female sex were correlated with all measured outcome parameters. Conclusions Exposure to the 2004 Asian tsunami had significant short- and long-term impacts on health complaints in a group of repatriated Dutch tsunami victims. Cross-sectionally, there was a trend towards recovery over 4 years, although 22% still reported high psychological and physical distress 4 years post-disaster. Duration of danger to life and female sex were associated with more physical and mental health complaints. In this study, neither disaster-related injury nor loss of loved ones resulted in negative health outcomes.
- Published
- 2011
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41. Endothelial cell decay after descemet's stripping automated endothelial keratoplasty and top hat penetrating keratoplasty.
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Dooren BT, Saelens IE, Bleyen I, Mulder PG, Bartels MC, and Rij GV
- Subjects
- Cataract Extraction, Cell Count, Corneal Edema surgery, Follow-Up Studies, Fuchs' Endothelial Dystrophy surgery, Humans, Postoperative Period, Regression Analysis, Suture Techniques, Tissue Donors, Corneal Endothelial Cell Loss diagnosis, Descemet Stripping Endothelial Keratoplasty, Endothelium, Corneal pathology, Keratoplasty, Penetrating
- Abstract
Purpose: To analyze endothelial cell density (ECD) decay after Descemet's stripping automated endothelial keratoplasty (DSAEK) and top hat keratoplasty (THPK) in patients with Fuchs' endothelial dystrophy (FED) and/or pseudophakic bullous keratopathy (PPBK)., Methods: Patients underwent either THPK (n = 33) or DSAEK (n = 39) at the Erasmus Medical Center, Rotterdam. For each nonrandomized cohort, a biexponential regression model for ECD decay was fitted. Factors associated with higher ECD decay were evaluated., Results: Median follow-up was 31.2 months (range, 11-91) in the THPK cohort, and 23.4 months (range, 6-61) in the DSAEK group. The early ECD decay was much higher after DSAEK (half time, 2.2 months) than after THPK (half time, 12.8 months). The late ECD decay after DSAEK was less steep (half time, 75.5 months) than after THPK (half time, 62 months). The 1-, 3- and 5-year endothelial cell losses derived from the models after DSAEK were 56%, 66%, and 73%, respectively, and after THPK were 24%, 50%, and 64%, respectively. For the DSAEK cohort, PPBK as an indication for surgery was associated with significantly higher late-phase decay rates. For the top-hat cohort, a significantly lower late-phase decay rate was found in PPBK. FED and same-session cataract surgery were confounding variables in the DSAEK cohort. Regarding DSAEK, postoperative re-bubbling was not found to have significant effects on early or late ECD decay rates. However, the small sample size and other limitations related to the method of evaluation may have influenced these findings., Conclusions: After DSAEK, early ECD decay was stronger than after THPK, as opposed to late decay. Late decay was faster for PPBK than for FED after DSAEK.
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- 2011
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42. Prospective randomized controlled trial to analyze the effects of intermittent pneumatic compression on edema following autologous femoropopliteal bypass surgery.
- Author
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te Slaa A, Dolmans DE, Ho GH, Mulder PG, van der Waal JC, de Groot HG, and van der Laan L
- Subjects
- Adult, Aged, Aged, 80 and over, Anastomosis, Surgical adverse effects, Female, Humans, Male, Middle Aged, Prospective Studies, Vascular Surgical Procedures adverse effects, Edema therapy, Femoral Artery surgery, Intermittent Pneumatic Compression Devices, Peripheral Arterial Disease surgery, Popliteal Artery surgery
- Abstract
Background: Patients who undergo autologous femoropopliteal bypass surgery develop postoperative edema in the revascularized leg. The effects of intermittent pneumatic compression (IPC) to treat and to prevent postreconstructive edema were examined in this study., Methods: In a prospective randomized trial, patients were assigned to one of two groups. All patients suffered from peripheral arterial disease, and all were subjected to autologous femoropopliteal bypass reconstruction. Patients in group 1 used a compression stocking (CS) above the knee exerting 18 mmHg (class I) on the leg postoperatively for 1 week (day and night). Patients in group 2 used IPC on the foot postoperatively at night for 1 week. The lower leg circumference was measured preoperatively and at five postoperative time points. A multivariate analysis was done using a mixed model analysis of variance., Results: A total of 57 patients were analyzed (CS 28; IPC 29). Indications for operation were severe claudication (CS 13; IPC 13), rest pain (10/5), or tissue loss (7/11). Revascularization was performed with either a supragenicular (CS 13; IPC10) or an infragenicular (CS 15; IPC 19) autologous bypass. Leg circumference increased on day 1 (CS/IPC): 0.4%/2.7%, day 4 (2.1%/6.1%), day 7 (2.5%/7.9%), day 14 (4.7%/7.3%), and day 90 (1.0%/3.3%) from baseline (preoperative situation). On days 1, 4, and 7 there was a significant difference in leg circumference between the two treatment groups., Conclusions: Edema following femoropopliteal bypass surgery occurs in all patients. For the prevention and treatment of that edema the use of a class I CS proved superior to treatment with IPC. The use of CS remains the recommended practice following femoropopliteal bypass surgery.
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- 2011
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43. Evaluation of A-V impulse technology as a treatment for oedema following polytetrafluoroethylene femoropopliteal surgery in a randomised controlled trial.
- Author
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te Slaa A, Dolmans DE, Ho GH, Mulder PG, van der Waal JC, de Groot HG, and van der Laan L
- Subjects
- Adult, Aged, Aged, 80 and over, Biocompatible Materials, Edema etiology, Female, Femoral Artery surgery, Humans, Lower Extremity surgery, Male, Middle Aged, Polytetrafluoroethylene, Popliteal Artery surgery, Prospective Studies, Reoperation, Stockings, Compression, Blood Vessel Prosthesis Implantation adverse effects, Edema therapy, Intermittent Pneumatic Compression Devices, Lower Extremity blood supply, Peripheral Arterial Disease surgery
- Abstract
Objective: To investigate the efficacy of A-V impulse technology (A-V) for oedema prevention and treatment following PTFE femoropopliteal surgery., Design: Prospective randomized clinical trial., Materials: 36 patients undergoing PTFE femoropopliteal bypass reconstructions, either being treated postoperatively with a compression stocking (CS) (Group-1, n = 19) or with A-V (Group-2, n = 17)., Methods: Patients in treatment group-1 used a CS postoperatively during 1 week day and night, patients in group-2 were treated with A-V postoperatively at night during one week. The lower leg circumference was measured preoperatively and at five postoperative time points., Results: Limb circumference has increased postoperatively on day 1 (CS 1.5%/A-V 1.4%), on day 4 (5.7%/6.3%), on day 7 (6.6%/6.1%), on day 14 (7.9%/7.7%) and on day 90 (5.8%/5.2%). Differences between treatment groups were not significant. A re-operation gives a significant 3.9% increase in circumference as compared to a first operation (95% CI: 1.5-6.4%; p = 0.002)., Conclusion: No significant differences were found in the extent of developed edema between the groups following PTFE femoropopliteal bypass surgery. A redo peripheral bypass operation results in significantly more postoperative oedema than a first-time performed bypass operation., (Copyright © 2010 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2010
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44. Influence of age on the efficacy of electroconvulsive therapy in major depression: a retrospective study.
- Author
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Birkenhäger TK, Pluijms EM, Ju MR, Mulder PG, and den Broek WW
- Subjects
- Adult, Age Factors, Aged, Aged, 80 and over, Chi-Square Distribution, Depressive Disorder, Major psychology, Female, Humans, Linear Models, Male, Middle Aged, Psychiatric Status Rating Scales, Retrospective Studies, Statistics, Nonparametric, Treatment Outcome, Young Adult, Depressive Disorder, Major therapy, Electroconvulsive Therapy
- Abstract
Background: Several variables have been studied as possible predictors for the efficacy of ECT, results from the few studies assessing the influence of age on the efficacy of ECT were inconsistent. In older patients suffering from severe depression, ECT is often the treatment of choice, therefore, investigating the influence of age on ECT response is considered relevant., Method: At two depression units, 141 patients meeting DSM-IV criteria for major depression and scores of at least 18 on the 17-item Hamilton Rating Scale for Depression (HAM-D) were treated with bilateral ECT, twice weekly. Clinical evaluation of depressive symptoms was performed each week; scores on the HAM-D were obtained 1-3 days prior to ECT and 1-3 days after termination of the ECT course. The primary outcome criterion was defined a priori as the mean change on the HAM-D score. The influence of age on mean change on the HAM-D score was analyzed with multiple linear regression analysis, adjusted for three covariables: center, duration of the index episode and presence of psychotic features., Results: Age as a continuous variable had no significant effect on the efficacy of ECT as measured by mean change on the HAM-D score (SE 0.057, p=0.84)., Limitations: The disproportionate distribution of patients among the three age groups appears to be the major limitation of the present study., Conclusion: This study suggests that the efficacy of ECT in elderly depressed patients is at least equal to that in younger depressed patients., (Copyright 2010 Elsevier B.V. All rights reserved.)
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- 2010
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45. The effect of a preoperative subconjuntival injection of dexamethasone on blood-retinal barrier breakdown following scleral buckling retinal detachment surgery: a prospective randomized placebo-controlled double blind clinical trial.
- Author
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Bali E, Feron EJ, Peperkamp E, Veckeneer M, Mulder PG, and van Meurs JC
- Subjects
- Adolescent, Adult, Aged, Blood-Retinal Barrier metabolism, Blood-Retinal Barrier pathology, Combined Modality Therapy, Conjunctiva, Double-Blind Method, Female, Follow-Up Studies, Glucocorticoids administration & dosage, Humans, Injections, Intraocular, Lasers, Male, Middle Aged, Photometry, Placebos, Postoperative Complications prevention & control, Preoperative Care methods, Young Adult, Blood-Retinal Barrier drug effects, Dexamethasone administration & dosage, Retinal Degeneration drug therapy, Retinal Degeneration metabolism, Retinal Degeneration surgery, Scleral Buckling, Vitreoretinopathy, Proliferative prevention & control
- Abstract
Background: Blood-retinal barrier breakdown secondary to retinal detachment and retinal detachment repair is a factor in the pathogenesis of proliferative vitreoretinopathy (PVR). We wished to investigate whether an estimated 700 to 1000 ng/ml subretinal dexamethasone concentration at the time of surgery would decrease the blood-retinal barrier breakdown postoperatively., Methods: Prospective, placebo-controlled, double blind clinical trial. In 34 patients with rhegmatogenous retinal detachment scheduled for conventional scleral buckling retinal detachment surgery, a subconjunctival injection of 0.5 ml dexamethasone diphosphate (10 mg) or 0.5 ml placebo was given 5-6 hours before surgery. Differences in laser flare photometry (KOWA) measurements taken 1, 3 and 6 weeks after randomisation between dexamethasone and placebo were analysed using mixed model ANOVA, while correcting for the preoperative flare measurement., Results: Six patients did not complete the study, one because of recurrent detachment within 1 week, and five because they missed their postoperative laser flare visits. The use of dexamethasone resulted in a statistically significant decrease in laser flare measurements at the 1-week postoperative visit., Conclusion: The use of a preoperative subconjunctival injection of dexamethasone decreased 1-week postoperative blood-retina barrier breakdown in patients undergoing conventional scleral buckling retinal detachment surgery. This steroid priming could be useful as a part of a peri-operative regime that would aim at decreasing the incidence of PVR.
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- 2010
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46. Abacavir/lamivudine/zidovudine maintenance after standard induction in antiretroviral therapy-naïve patients: FREE randomized trial interim results.
- Author
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Sprenger HG, Langebeek N, Mulder PG, Ten Napel CH, Vriesendorp R, Hoepelman AI, Legrand JC, Koopmans PP, Van Kasteren ME, Bravenboer B, Ten Kate RW, Groeneveld PH, van der Werf TS, Gisolf EH, and Richter C
- Subjects
- Adult, Aged, CD4 Lymphocyte Count, Drug Therapy, Combination, Female, HIV Infections virology, HIV-1 drug effects, HIV-1 genetics, Humans, Lamivudine administration & dosage, Male, Middle Aged, RNA, Viral blood, Treatment Outcome, Viral Load, Young Adult, Zidovudine administration & dosage, Anti-HIV Agents therapeutic use, Dideoxynucleosides therapeutic use, HIV Infections drug therapy, Lamivudine therapeutic use, Reverse Transcriptase Inhibitors therapeutic use, Zidovudine therapeutic use
- Abstract
Maintenance with a triple nucleoside reverse transcriptase Inhibitor (NRTI) regimen after successful induction with a dual NRTI/protease inhibitor (PI) combination may be advantageous, because of low pill burden, favorable lipids, and less drug interactions. This strategy to become free of PI-related problems without losing viral efficacy has not been formally tested. We performed a randomized, open-label, multicenter, 96-week comparative study in antiretroviral therapy (ART)-naïve patients with CD4
50 copies per milliliter). Two hundred seven patients had similar baseline (BL) characteristics: median CD4 180 cells/mm(3), median VL 5.19 log(10) copies per milliliter. One hundred twenty subjects (58%) met randomization criteria. Baseline VL differed significantly between dropouts and randomized subjects (median 5.41 versus 5.06 log(10) copies per milliliter, p = 0.017), as did CD4 cells (median 160 and 200 cells/mm(3), p = 0.044). Sixty-one subjects received TZV and 59 subjects continued NRTIs/PI. At week 48, 2 patients in the TZV group and 5 in the PI group did not have a sustained virologic suppression (log rank test; p = 0.379). CD4 counts increased significantly in both arms. In ART-naïve patients, TZV maintenance had similar antiviral efficacy compared to continued standard ART at 48 weeks after baseline. Patients on successful standard ART can be safely switched to a NRTI-only regimen, at least for the tested time period. - Published
- 2010
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47. Prevalence of trait anxiety in a sample of depressed inpatients and its influence on response to antidepressants.
- Author
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Heijnen WT, van den Broek WW, Mulder PG, and Birkenhäger TK
- Subjects
- Adult, Aged, Antidepressive Agents blood, Anxiety diagnosis, Anxiety psychology, Depressive Disorder diagnosis, Depressive Disorder epidemiology, Depressive Disorder psychology, Diazepam, Double-Blind Method, Female, Fluvoxamine blood, Humans, Imipramine blood, Male, Middle Aged, Netherlands epidemiology, Predictive Value of Tests, Prevalence, Psychiatric Status Rating Scales, Severity of Illness Index, Time Factors, Treatment Outcome, Antidepressive Agents therapeutic use, Anxiety epidemiology, Depressive Disorder drug therapy, Fluvoxamine therapeutic use, Imipramine therapeutic use, Inpatients
- Abstract
Depression and anxiety frequently occur together or in extension of each other. According to a previous study in depressed inpatients, a high trait anxiety level correlated with a positive response to the diazepam test (DT) and a low trait anxiety level with a negative response to the test. The aim of this study is to investigate whether positive reaction to the DT is related to a positive response to fluvoxamine and whether a negative reaction to the test is related to positive response to imipramine. The DT was performed in 130 patients diagnosed with a depressive disorder. Following the DT, the patients were randomly assigned to double-blind treatment with either imipramine or fluvoxamine. Doses of both antidepressants were adjusted to attain predefined blood levels, and the outcome was evaluated 4 weeks after attaining these blood levels. Twenty-two patients had a positive response to the DT, whereas 108 patients had a negative response. Although a positive DT is correlated with a high level of trait anxiety, no differences in depressive symptomatology and antidepressant response were found between patients with a positive and a negative DT.
- Published
- 2010
- Full Text
- View/download PDF
48. Influence of gender and menopausal status on antidepressant treatment response in depressed inpatients.
- Author
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Vermeiden M, van den Broek WW, Mulder PG, and Birkenhäger TK
- Subjects
- Adult, Aged, Depressive Disorder diagnosis, Depressive Disorder psychology, Double-Blind Method, Female, Humans, Linear Models, Male, Middle Aged, Netherlands, Psychiatric Status Rating Scales, Sex Factors, Single-Blind Method, Surveys and Questionnaires, Treatment Outcome, Young Adult, Antidepressive Agents therapeutic use, Depressive Disorder drug therapy, Fluvoxamine therapeutic use, Imipramine therapeutic use, Inpatients, Menopause psychology
- Abstract
The present study investigated the influence of gender and menopausal status on treatment response in depressed inpatients, treated with either imipramine or fluvoxamine. The patients were divided into three groups: men, premenopausal women and postmenopausal women. A multivariate analysis was performed using the difference in Hamilton score (pretreatment - post-treatment) for imipramine and fluvoxamine as dependent variable. The following independent variables were used: the baseline Hamilton score, the antidepressant used, the gender-group and the interaction between the type of antidepressant and gender. In total, 138 patients with a DSM IV diagnosis of depressive disorder were analysed. Men responded more favorably to imipramine (B = 7.12, P = 0.005). Premenopausal women had a better response rate to fluvoxamine than men (B = -8.66, P = 0.027). In depressed inpatients, men respond more favorably to imipramine than to fluvoxamine. Premenopausal women respond more frequently to fluvoxamine than men.
- Published
- 2010
- Full Text
- View/download PDF
49. A comparison of the acid-inhibitory effects of esomeprazole and pantoprazole in relation to pharmacokinetics and CYP2C19 polymorphism.
- Author
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Hunfeld NG, Touw DJ, Mathot RA, Mulder PG, VAN Schaik RH, Kuipers EJ, Kooiman JC, and Geus WP
- Subjects
- 2-Pyridinylmethylsulfinylbenzimidazoles administration & dosage, Adolescent, Adult, Anti-Ulcer Agents administration & dosage, Aryl Hydrocarbon Hydroxylases genetics, Cytochrome P-450 CYP2C19, Esomeprazole administration & dosage, Female, Gastric Acidity Determination, Genotype, Helicobacter Infections genetics, Helicobacter pylori, Humans, Male, Monitoring, Physiologic, Pantoprazole, Polymorphism, Genetic drug effects, Time Factors, Treatment Outcome, Young Adult, 2-Pyridinylmethylsulfinylbenzimidazoles pharmacokinetics, Anti-Ulcer Agents pharmacokinetics, Aryl Hydrocarbon Hydroxylases drug effects, Esomeprazole pharmacokinetics, Gastric Acid metabolism, Helicobacter Infections metabolism
- Abstract
Background: Esomeprazole and pantoprazole are metabolized in the liver and the polymorphic CYP2C19 enzyme is involved in that process. This genetic polymorphism determines fast (70% of Caucasians), intermediate (25-30% of Caucasians) and slow (2-5% of Caucasians) metabolism of PPIs., Aim: To compare the acid-inhibitory effects of esomeprazole 40 mg and pantoprazole 40 mg at 4, 24 and 120 h after oral administration in relation to CYP2C19 genotype and pharmacokinetics., Methods: CYP2C19*2, *3, *4, *5 and *17 genotypes were determined in healthy Helicobacter pylori-negative Caucasian subjects. 7 wt/wt, 7 wt/*2, 2 wt/*17, 2 *2/*17 and 1 *2/*2 were included in a randomized investigator-blinded cross-over study with esomeprazole 40 mg and pantoprazole 40 mg. Intragastric 24-h pH-monitoring was performed on days 0, 1 and 5 of oral dosing., Results: A total of 19 subjects (mean age 24 years, 7 male) completed the study. At day 1 and 5, acid-inhibition with esomeprazole was significantly greater and faster than with pantoprazole. Differences in acid-inhibition and pharmacokinetics between wt/wt and wt/*2 genotype were significant for pantoprazole at day 1 and 5., Conclusions: Esomeprazole provides acid-inhibition faster than and superior to pantoprazole after single and repeated administration. The acid-inhibitory effect and the kinetics of pantoprazole are influenced by CYP2C19 genotype.
- Published
- 2010
- Full Text
- View/download PDF
50. Five-year follow-up on the effect of oral acyclovir after penetrating keratoplasty for herpetic keratitis.
- Author
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Jansen AF, Rijneveld WJ, Remeijer L, Völker-Dieben HJ, Eggink CA, Geerards AJ, Mulder PG, and van Rooij J
- Subjects
- Administration, Oral, Drug Administration Schedule, Follow-Up Studies, Graft Rejection, Graft Survival, Humans, Kaplan-Meier Estimate, Postoperative Complications, Postoperative Period, Secondary Prevention, Treatment Outcome, Visual Acuity, Acyclovir administration & dosage, Antiviral Agents administration & dosage, Keratitis, Herpetic drug therapy, Keratitis, Herpetic surgery, Keratoplasty, Penetrating, Postoperative Care
- Abstract
Purpose: To investigate the long-term effect of oral acyclovir administered during the first 6 months after penetrating keratoplasty (PK) for herpetic eye disease (HED)., Methods: A 5-year follow-up was undertaken for a patient population from a placebo-controlled, randomized trial on acyclovir prophylaxis after keratoplasty. In this former study the effectiveness of oral acyclovir prophylaxis was significant during the first 2 years after keratoplasty. Prospective data such as graft survival, graft clarity, vascularization, infective events, and rejection episodes were obtained from the national keratoplasty follow-up registry. Additional clinical data were derived from the medical charts., Results: For 47 of the original 63 enrolled patients, the 5-year follow-up was completed. Comparing the acyclovir group with the placebo group, we found that with regard to the cumulative clinically evident recurrences, there was a statistically significant lower monthly event rate in the acyclovir group (P = 0.037). There were no statistically significant differences in visual acuity or in the use of oral aciclovir between the two treatment groups. The incidences of graft failure, vascularization, and medication or surgery for glaucoma were too low to analyze differences between the two groups., Conclusion: The results of our study suggest that oral acyclovir prescribed during the first 6 months after PK for HED protects against clinically evident HED recurrences during the first 5 years following PK.
- Published
- 2009
- Full Text
- View/download PDF
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