168 results on '"Richir, Milan"'
Search Results
152. Can Students Create Their Own Educational Escape Room? Lessons Learned from the Opioid Crisis Escape Room.
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Bakkum MJ, Richir MC, Sultan R, de la Court JR, Lambooij AC, van Agtmael MA, and Tichelaar J
- Abstract
Educational escape rooms (EERs) are live-action, team-based games used to teach content-related and generic knowledge and skills. Instead of students just playing the EER, we believed that giving them the opportunity to create their own EERs would augment the learning effects of this teaching method. We report on the feasibility, evaluation, and lessons learned of our assignment on an opioid epidemic-based EER. This original teaching method appealed to most students, but the workload was evaluated to be too high. Our lessons learned include the need for sufficient (extrinsic) motivation, careful explanation of the assignment, and small group sizes., Competing Interests: Conflict of InterestThe authors declare no competing interests., (© The Author(s) 2021.)
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- 2021
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153. Factors affecting 30-day postoperative complications after emergency surgery during the COVID-19 outbreak: A multicentre cohort study.
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de Bock E, Filipe MD, Pronk A, Boerma D, Heikens JT, Verheijen PM, Vriens MR, and Richir MC
- Abstract
Introduction: Coronavirus disease 2019 (COVID-19) has influenced (surgical) care worldwide. Measures were taken to prioritize surgical care in order to maintain capacity for COVID-19 healthcare. However, the influence of these measures on emergency surgery is limited. Therefore, the aim of this study is to describe the trends in emergency surgery and determine the factors influencing the risk of postoperative complications during the first wave of the COVID-19 pandemic., Methods: This multicentre retrospective cohort study investigated all emergency patients operated on from March 9th to June 30th, 2020. The primary endpoint was identifying the number of emergency surgical procedures performed. Secondary endpoints were determining the number of postoperative complications and factors determining the risk of postoperative complications, which were calculated by multivariate analysis with odds ratio (OR) and 95% confidence (CI) intervals., Results: In total, 1399 patients who underwent an emergency surgical procedure were included. An increase in the number of emergency vascular and trauma surgical procedures occurred during the study period. In contrast, the number of emergency general and oncological surgical procedures performed remained stable. An increased age (OR 1.01, 95% CI 1.00-1.02; p = 0.024), American Society of Anaesthesiologists (ASA) (OR 1.34, 95% CI 1.09-1.64; p = 0.005), and surgical discipline were independent predictors for an increased risk of postoperative complications., Conclusion: The performance of emergency vascular and trauma surgical procedures increased. The performance of emergency general and oncological surgical procedures remained stable. In addition, increased age, ASA, and surgical discipline were independent predictors for an increased risk of postoperative complications., Competing Interests: None., (© 2021 The Author(s).)
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- 2021
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154. EurOP 2 E - the European Open Platform for Prescribing Education, a consensus study among clinical pharmacology and therapeutics teachers.
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Bakkum MJ, Richir MC, Papaioannidou P, Likic R, Sanz EJ, Christiaens T, Costa JN, Mačiulaitis R, Dima L, Coleman J, Tichelaar J, and van Agtmael MA
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- Cooperative Behavior, Copyright, Europe, Humans, Pharmacology, Clinical standards, Quality Improvement, Schools, Medical standards, Teaching Materials standards, Pharmacology, Clinical education, Schools, Medical organization & administration, Teaching Materials supply & distribution
- Abstract
Purpose: Sharing and developing digital educational resources and open educational resources has been proposed as a way to harmonize and improve clinical pharmacology and therapeutics (CPT) education in European medical schools. Previous research, however, has shown that there are barriers to the adoption and implementation of open educational resources. The aim of this study was to determine perceived opportunities and barriers to the use and creation of open educational resources among European CPT teachers and possible solutions for these barriers., Methods: CPT teachers of British and EU medical schools completed an online survey. Opportunities and challenges were identified by thematic analyses and subsequently discussed in an international consensus meeting., Results: Data from 99 CPT teachers from 95 medical schools were analysed. Thirty teachers (30.3%) shared or collaboratively produced digital educational resources. All teachers foresaw opportunities in the more active use of open educational resources, including improving the quality of their teaching. The challenges reported were language barriers, local differences, lack of time, technological issues, difficulties with quality management, and copyright restrictions. Practical solutions for these challenges were discussed and include a peer review system, clear indexing, and use of copyright licenses that permit adaptation of resources., Conclusion: Key challenges to making greater use of CPT open educational resources are a limited applicability of such resources due to language and local differences and quality concerns. These challenges may be resolved by relatively simple measures, such as allowing adaptation and translation of resources and a peer review system., (© 2021. The Author(s).)
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- 2021
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155. Switching from a traditional undergraduate programme in (clinical) pharmacology and therapeutics to a problem-based learning programme.
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Brinkman DJ, Monteiro T, Monteiro EC, Richir MC, van Agtmael MA, and Tichelaar J
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- Adult, Clinical Competence, Curriculum, Female, Humans, Male, Portugal, Practice Patterns, Physicians' standards, Surveys and Questionnaires, Young Adult, Education, Medical, Undergraduate methods, Pharmacology, Clinical education, Problem-Based Learning methods, Students, Medical statistics & numerical data
- Abstract
Purpose: The pharmacology and clinical pharmacology and therapeutics (CPT) education during the undergraduate medical curriculum of NOVA Medical School, Lisbon, Portugal, was changed from a traditional programme (i.e. discipline-based, lectures) to a problem-based learning (PBL) programme (i.e. integrated, case-based discussions) without an increase in teaching hours. The aim of this study was to investigate whether this change improved the prescribing competencies of final-year medical students., Methods: Final-year students from both programmes (2015 and 2019) were invited to complete a validated prescribing assessment and questionnaire. The assessment comprised 24 multiple-choice questions in three subdomains (working mechanism, side-effects and interactions/contraindications), and five clinical case scenarios of common diseases. The questionnaire focused on self-reported prescribing confidence, preparedness for future prescribing task and education received., Results: In total, 36 (22%) final-year medical students from the traditional programme and 54 (23%) from the PBL programme participated. Overall, students in the PBL programme had significantly higher knowledge scores than students in the traditional programme (76% (SD 9) vs 67% (SD 15); p = 0.002). Additionally, students in the PBL programme made significantly fewer inappropriate therapy choices (p = 0.023) and fewer erroneous prescriptions than did students in the traditional programme (p = 0.27). Students in the PBL programme felt more confident in prescribing, felt better prepared for prescribing as junior doctor and completed more drug prescriptions during their medical training., Conclusion: Changing from a traditional programme to an integrated PBL programme in pharmacology and CPT during the undergraduate medical curriculum may improve the prescribing competencies of final-year students.
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- 2021
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156. The clinical and educational outcomes of an inter-professional student-led medication review team, a pilot study.
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Reumerman MO, Richir MC, Domela Nieuwenhuis PM, Sultan R, Daelmans HEM, Springer H, Muller M, van Agtmael MA, and Tichelaar J
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- Aged, Aged, 80 and over, Ambulatory Care Facilities, Cognitive Dysfunction drug therapy, Female, Humans, Male, Medication Reconciliation, Pilot Projects, Interprofessional Relations, Medication Therapy Management, Patient Care Team, Students, Health Occupations
- Abstract
Aims: The involvement of an inter-professional healthcare student team in the review of medications used by geriatric patients could not only provide patients with optimized therapy but also provide students with a valuable inter-professional learning experience. We describe and evaluate the clinical and learning outcomes of an inter-professional student-run mediation review program (ISP)., Subject and Method: A variable team consisting of students in medicine, pharmacy, master advanced nursing practice, and master physician assistant reviewed the medication lists of patients attending a specialized geriatric outpatient clinic., Results: During 32 outpatient visits, 188 medications were reviewed. The students identified 14 medication-related problems, of which 4 were not recognized by healthcare professionals. The ISP team advised 95 medication changes, of which 68 (71.6%) were directly implemented. Students evaluated this pilot program positively and considered it educational (median score 4 out of 5) and thought it would contribute to their future inter-professional relationships., Conclusion: An inter-professional team of healthcare students is an innovative healthcare improvement for (academic) hospitals to increase medication safety. Most formulated advices were directly incorporated in daily practice and could prevent future medication-related harm. The ISP also offers students a first opportunity to work in an inter-professional manner and get insight into the perspectives and qualities of their future colleagues.
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- 2021
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157. Effect of the COVID-19 Pandemic on Surgical Breast Cancer Care in the Netherlands: A Multicenter Retrospective Cohort Study.
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Filipe MD, van Deukeren D, Kip M, Doeksen A, Pronk A, Verheijen PM, Heikens JT, Witkamp AJ, and Richir MC
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- Adult, Aged, Breast Neoplasms pathology, Female, Humans, Middle Aged, Neoplasm Staging, Postoperative Complications epidemiology, Referral and Consultation, Retrospective Studies, Breast Neoplasms surgery, COVID-19 epidemiology, SARS-CoV-2
- Abstract
Background: Coronavirus disease 2019 (COVID-19) has put a strain on regular healthcare worldwide. In the Netherlands, the national screening programs, including for breast cancer, were halted temporarily. This posed a challenge to breast cancer care, because ∼40% of cases are detected through national screening. Therefore, the aim of the present study was to evaluate the effects of the COVID-19 pandemic on the surgical care of patients with breast cancer in the Netherlands., Materials and Methods: The present multicenter retrospective cohort study investigated the effects of COVID-19 on patients with breast cancer who had undergone surgery from March 9 to May 17, 2020. The primary endpoints were the number of surgical procedures performed during the study period, tumor characteristics, surgery type, and route of referral. The secondary endpoint was the incidence of postoperative complications during the study period., Results: A total of 217 consecutive patients with breast cancer requiring surgery were included. We found an overall decrease in the number of patients with breast cancer who were undergoing surgery. The most significant decline was seen in surgery for T1-T2 and N0 tumors. A decline in the number of referrals from both the national screening program and general practitioners was observed. The incidence of postoperative complications remained stable during the study period., Conclusions: The temporary halt of the national screening program for breast cancer resulted in fewer surgical procedures during the study period and a pronounced decrease in surgery of the lower tumor stages., (Copyright © 2020 The Author(s). Published by Elsevier Inc. All rights reserved.)
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- 2020
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158. Evaluation of PET/CT in patients with stage III malignant cutaneous melanoma.
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Groen LC, Lazarenko SV, Schreurs HW, and Richir MC
- Abstract
In order to evaluate if patients with stage III-IV MCM are eligible for curative treatment PET/CT is performed. Since the diagnostic value of PET/CT is not unambiguously, a retrospective cohort study is performed to tailor optimal indication of PET/CT in patients with stage III MCM. A retrospective cohort study was conducted of all patients with stage III disease in a large oncologic teaching hospital in which PET/CT was performed from 2012 to 2016. The primary tumor- and regional lymph node characteristics were assessed to predict distant metastasis seen on PET/CT. A total of 73 patients were included of which 18% were restaged as stage IV by PET/CT. Twenty percent of the patients with a positive lymph node and 14% of patients with in transit metastasis or satellite lesions were restaged to stage IV. T-classification, ulceration and N-classification did not predict distant metastasis. Localization of the primary tumor significantly differed (P = 0.004). Localization on the head/neck resulted in a 32 greater odds of distant metastasis (P = 0.008). After a median follow-up of 36 months, 13 out of 60 (27%) stage III MCM patients were restaged as stage IV after the first performed PET/CT. This retrospective cohort study resulted in restaging of 18% of the stage III MCM patients by PET/CT, with therapeutic consequences. Patients with stage III MCM on the head/neck seem to have more distant spreading of the tumor than other localizations. Further investigation is needed, with larger sample sizes, to guide optimal indication of PET/CT., Competing Interests: None.
- Published
- 2019
159. Clarifying learning experiences in student-run clinics: a qualitative study.
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Schutte T, Tichelaar J, Donker E, Richir MC, Westerman M, and van Agtmael MA
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- Adult, Attitude of Health Personnel, Clinical Competence standards, Education, Medical, Undergraduate standards, Evidence-Based Practice, Female, Grounded Theory, Humans, Male, Qualitative Research, Young Adult, Education, Medical, Undergraduate methods, Problem-Based Learning, Students, Medical
- Abstract
Background: Student-run clinics (SRCs) are outpatient clinics run and organized by undergraduate medical students. While these clinics offer participating students multiple learning opportunities, little is known about how participation in an SRC contributes to learning and how this learning is influenced., Methods: In this qualitative clarification study, we conducted semi-structured interviews with a purposive sample of 20 students and student-coordinators participating in our learner-centred SRC (LC-SRC), to gain in-depth insight into their experiences and learning. These interviews were analysed using Glaser's approach to grounded theory., Results: Analysis revealed that responsibility, authenticity, and collaboration described how SRC participation contribute to learning. Responsibility encompassed the responsibility students had for their patients and the responsibility that the student coordinators had for the students. Authenticity reflected the context and tasks in the LC-SRC. Collaboration covered collaboration with other students, with student coordinators, and with clinical supervisors. These three themes are interrelated, and together enhanced motivation and promoted patient-centred learning in both the LC-SRC and the regular curriculum., Conclusions: Learning in an LC-SRC is highly dependent on students' feelings of responsibility for real authentic tasks and is stimulated by extensive collaboration with fellow students and supervising doctors.
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- 2018
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160. Do final-year medical students have sufficient prescribing competencies? A systematic literature review.
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Brinkman DJ, Tichelaar J, Graaf S, Otten RHJ, Richir MC, and van Agtmael MA
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- Competency-Based Education, Drug Prescriptions standards, Education, Medical standards, Educational Measurement methods, Health Knowledge, Attitudes, Practice, Humans, Medication Errors prevention & control, Clinical Competence, Practice Patterns, Physicians' standards, Students, Medical
- Abstract
Aims: Prescribing errors are an important cause of patient safety incidents and are frequently caused by junior doctors. This might be because the prescribing competence of final-year medical students is poor as a result of inadequate clinical pharmacology and therapeutic (CPT) education. We reviewed the literature to investigate which prescribing competencies medical students should have acquired in order to prescribe safely and effectively, and whether these have been attained by the time they graduate., Methods: PubMed, EMBASE and ERIC databases were searched from the earliest dates up to and including January 2017, using the terms 'prescribing', 'competence' and 'medical students' in combination. Articles describing or evaluating essential prescribing competencies of final-year medical students were included., Results: Twenty-five articles describing, and 47 articles evaluating, the prescribing competencies of final-year students were included. Although there seems to be some agreement, we found no clear consensus among CPT teachers on which prescribing competencies medical students should have when they graduate. Studies showed that students had a general lack of preparedness, self-confidence, knowledge and skills, specifically regarding general and antimicrobial prescribing and pharmacovigilance. However, the results should be interpreted with caution, given the heterogeneity and methodological weaknesses of the included studies., Conclusions: There is considerable evidence that final-year students have insufficient competencies to prescribe safely and effectively, although there is a need for a greater consensus among CPT teachers on the required competencies. Changes in undergraduate CPT education are urgently required in order to improve the prescribing of future doctors., (© 2018 VU University Medical Centre. British Journal of Clinical Pharmacology published by John Wiley & Sons Ltd on behalf of British Pharmacological Society.)
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- 2018
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161. Does Medical Students Knowing More About Drugs Lead to Better Treatment Choices?
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Brinkman DJ, van Rossem AP, Tichelaar J, Richir MC, and van Agtmael MA
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- Humans, Medication Errors prevention & control, Pharmacology, Clinical standards, Clinical Competence standards, Clinical Decision-Making, Pharmacology, Clinical education, Students, Medical
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- 2017
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162. Feasibility and Educational Value of a Student-Run Pharmacovigilance Programme: A Prospective Cohort Study.
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Schutte T, Tichelaar J, Reumerman MO, van Eekeren R, Rolfes L, van Puijenbroek EP, Richir MC, and van Agtmael MA
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- Clinical Competence, Cohort Studies, Education, Medical, Educational Measurement, Health Knowledge, Attitudes, Practice, Humans, Netherlands, Product Surveillance, Postmarketing methods, Prospective Studies, Adverse Drug Reaction Reporting Systems, Drug-Related Side Effects and Adverse Reactions epidemiology, Pharmacovigilance, Students, Medical
- Abstract
Introduction: Pharmacovigilance, the monitoring of drug safety after marketing approval, highly depends on the adequate reporting of adverse drug reactions (ADRs). To improve pharmacovigilance awareness and future ADR reporting among medical students, we developed and evaluated a student-run pharmacovigilance programme., Methods: In this project, teams of medical students (first- to fifth-year) assessed real ADR reports, as submitted to the national pharmacovigilance centre. After assessment of causality, including identification of a potential pharmacological explanation for the ADR, the students wrote a personalized feedback letter to the reporter, as well as a summary for the European Medicines Agency (EMA) and World Health Organization (WHO) pharmacovigilance databases. This student assessment was then verified and evaluated by staff from The Netherlands Pharmacovigilance Centre Lareb (Lareb), using an e-questionnaire. Student attitudes, intentions, skills, and knowledge of ADR reporting were evaluated using the e-questionnaire, before and after participation in the programme., Results: From May 2014 to January 2015, a total of 43 students assessed 100 different ADR reports selected by Lareb staff (n = 3). Student assessments were rated as useful (93%), scientifically substantiated (90%), accurate (92%), and complete (92%), and, on average, did not cost Lareb staff extra time. Medical students were positive about ADR reporting, and their awareness of ADR reporting increased significantly following participation in the programme (p < 0.05). After participation in the programme, the students intended to report serious ADRs in their future practice, and their knowledge of pharmacovigilance and ADR reporting showed they had a high overall level of pharmacological understanding., Conclusion: The student-run pharmacovigilance programme is a win-win venture. It offers students a valuable 'pharmacovigilance experience', creates awareness in future doctors, and has the potential to increase pharmacovigilance skills and knowledge.
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- 2017
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163. Risk of anastomotic leakage with nonsteroidal anti-inflammatory drugs within an enhanced recovery program.
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Bakker N, Deelder JD, Richir MC, Cakir H, Doodeman HJ, Schreurs WH, and Houdijk AP
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- Aged, Aged, 80 and over, Anastomosis, Surgical adverse effects, Colectomy adverse effects, Elective Surgical Procedures adverse effects, Female, Humans, Male, Middle Aged, Postoperative Care adverse effects, Postoperative Care methods, Regression Analysis, Risk Factors, Sex Factors, Anastomotic Leak chemically induced, Anti-Inflammatory Agents, Non-Steroidal adverse effects, Colon surgery, Colonic Neoplasms surgery, Diclofenac adverse effects, Rectal Neoplasms surgery, Rectum surgery
- Abstract
Introduction: Anastomotic leakage is a serious complication after colorectal resection. Recent studies suggest that nonsteroidal anti-inflammatory drugs may increase the risk of anastomotic leakage. We investigated this association in our enhanced recovery population., Material and Methods: Patients undergoing an elective colon or rectal resection with primary anastomosis because of malignancy and treated within our enhanced recovery program were included. Univariable and multivariable logistic regression analyses were used to study risk factors for anastomotic leakage., Results: Between 2006 and 2013, 856 patients were included. The anastomotic leakage rate was significantly higher in the group that received nonsteroidal anti-inflammatory drugs compared to patients who did not: 9.2 vs. 5.3%, p = 0.038. This higher rate was only seen in patients receiving diclofenac: for colonic resections, 11.8 vs. 6.0%, p = 0.016; for rectal resections, 13.1 vs. 0%, p = 0.017. Only male sex (odds ratio 2.20, p = 0.005) was also independently associated with anastomotic leakage., Conclusion: The results of this study are in line with other comparable studies in the literature, showing an increased risk for anastomotic leakage with diclofenac. The use of diclofenac in colorectal surgery can no longer be recommended. Alternatives for postoperative analgesia need to be explored within an enhanced recovery program.
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- 2016
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164. Comparison of imaging strategies with conditional contrast-enhanced CT and unenhanced MR imaging in patients suspected of having appendicitis: a multicenter diagnostic performance study.
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Leeuwenburgh MM, Wiarda BM, Wiezer MJ, Vrouenraets BC, Gratama JW, Spilt A, Richir MC, Bossuyt PM, Stoker J, and Boermeester MA
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- Adult, Appendicitis diagnostic imaging, Chi-Square Distribution, Contrast Media, Diagnosis, Differential, Emergency Service, Hospital, Female, Humans, Male, Middle Aged, Predictive Value of Tests, Prospective Studies, Sensitivity and Specificity, Ultrasonography, Appendicitis diagnosis, Magnetic Resonance Imaging, Tomography, X-Ray Computed
- Abstract
Purpose: To compare the diagnostic performance of imaging strategies with magnetic resonance (MR) imaging and computed tomographic (CT) imaging in adult patients suspected of having appendicitis., Materials and Methods: Institutional review board approval was obtained prior to study initiation, and patients gave written informed consent. In a multicenter diagnostic performance study, adults suspected of having appendicitis were prospectively identified in the emergency department. Consenting patients underwent ultrasonography (US) and subsequent contrast-enhanced CT if US imaging yielded negative or inconclusive results. Additionally, all patients underwent unenhanced MR imaging, with the reader blinded to other findings. An expert panel assigned final diagnosis after 3 months. Diagnostic performance of three imaging strategies was evaluated: conditional CT after US, conditional MR imaging after US, and immediate MR imaging. Sensitivity and specificity were calculated by comparing findings with final diagnosis., Results: Between March and September 2010, 229 US, 115 CT, and 223 MR examinations were performed in 230 patients (median age, 35 years; 40% men). Appendicitis was the final diagnosis in 118 cases. Conditional and immediate MR imaging had sensitivity and specificity comparable to that of conditional CT, which resulted in 3% (three of 118; 95% confidence interval [CI]: 1%, 7%) missed appendicitis, and 8% (10 of 125; 95% CI: 4%, 14%) false-positives. Conditional MR missed appendicitis in 2% (two of 118; 95% CI: 0%, 6%) and generated 10% (13 of 129; 95% CI: 6%, 16%) false-positives. Immediate MR missed 3% (four of 117; 95% CI: 1%, 8%) appendicitis with 6% (seven of 120; 95% CI: 3%, 12%) false-positives. Conditional strategies resulted in more false-positives in women than in men (conditional CT, 17% vs 0%; P = .03; conditional MR, 19% vs 1%; P = .04), wherease immediate MR imaging did not., Conclusion: The accuracy of conditional or immediate MR imaging was similar to that of conditional CT in patients suspected of having appendicitis, which implied that strategies with MR imaging may replace conditional CT for appendicitis detection.
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- 2013
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165. [A woman with a growing mass near the anus].
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Hanneman NM, Richir MC, and Schreurs WH
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- Anal Canal pathology, Female, Humans, Middle Aged, Treatment Outcome, Buschke-Lowenstein Tumor diagnosis, Buschke-Lowenstein Tumor surgery
- Abstract
A 58-year-old woman visited the surgical outpatient clinic because of a mass near the anus that had existed for years and had now grown to a size that made sitting impossible. With histological examination of the 6 x 10 cm exofytic, condylomatic mass, the diagnosis 'giant condyloma acuminatum' was made. Radical excision was performed, the patient recovered well.
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- 2013
166. [A woman with 'year rings' on her nails].
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Richir MC and Langenhorst BL
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- Antineoplastic Agents therapeutic use, Breast Neoplasms drug therapy, Carcinoma drug therapy, Female, Humans, Middle Aged, Antineoplastic Agents adverse effects, Nail Diseases chemically induced, Nails pathology
- Abstract
A 50-year-old woman developed Mees' lines on her nails after chemotherapy for infiltrating lobulair carcinoma of the breast.
- Published
- 2011
167. Antioxidant-enriched enteral nutrition and immuno-inflammatory response after major gastrointestinal tract surgery.
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van Stijn MF, Boelens PG, Richir MC, Ligthart-Melis GC, Twisk JW, Diks J, Houdijk AP, and van Leeuwen PA
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- Adolescent, Adult, Aged, Antimicrobial Cationic Peptides blood, Antioxidants administration & dosage, Blood Proteins, C-Reactive Protein metabolism, HLA-DR Antigens genetics, Humans, Interleukin-6 blood, Interleukin-8 blood, Leukocyte Count, Middle Aged, Monocytes immunology, Patient Selection, Postoperative Complications prevention & control, Prospective Studies, Receptors, Interleukin-1 blood, Young Adult, Antioxidants therapeutic use, Enteral Nutrition, Gastrointestinal Tract surgery, Inflammation prevention & control
- Abstract
Major surgery induces an immuno-inflammatory response accompanied by oxidative stress that may impair cellular function and delay recovery. The objective of the study was to investigate the effect of an enteral supplement, containing glutamine and antioxidants, on circulating levels of immuno-inflammatory markers after major gastrointestinal tract surgery. Patients (n 21) undergoing major gastrointestinal tract surgery were randomised in a single-centre, open-label study. The effects on circulating levels of immuno-inflammatory markers were determined on the day before surgery and on days 1, 3, 5 and 7 after surgery. Major gastrointestinal surgery increased IL-6, TNF receptor 55/60 (TNF-R55) and C-reactive protein (CRP). Surgery reduced human leucocyte antigen-DR (HLA-DR) expression on monocytes. CRP decrease was more pronounced in the first 7 d in the treatment group compared with the control group. In the treatment group, from the moment Module AOX was administered on day 1 after surgery, TNF receptor 75/80 (TNF-R75) level decreased until the third post-operative day and then stabilised, whereas in the control group the TNF-R75 level continued to increase. The results of the present pilot study suggest that enteral nutrition enriched with glutamine and antioxidants possibly moderates the immuno-inflammatory response (CRP, TNF-R75) after surgery.
- Published
- 2010
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168. The prominent role of the liver in the elimination of asymmetric dimethylarginine (ADMA) and the consequences of impaired hepatic function.
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Richir MC, Bouwman RH, Teerlink T, Siroen MP, de Vries TP, and van Leeuwen PA
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- Arginine analogs & derivatives, Cardiovascular Diseases etiology, Humans, Risk Factors, Amidohydrolases metabolism, Arginine metabolism, Enzyme Inhibitors metabolism, Liver enzymology, Liver Diseases metabolism, Nitric Oxide Synthase antagonists & inhibitors
- Abstract
Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor of nitric oxide synthase (NOS), the enzyme which converts the amino acid arginine into nitric oxide (NO). ADMA has been identified as an important risk factor for cardiovascular diseases. Besides the role of ADMA in cardiovascular diseases, it also seems to be an important determinant in the development of critical illness, (multiple) organ failure, and the hepatorenal syndrome. ADMA is eliminated from the body by urinary excretion, but it is mainly metabolized by the dimethylarginine dimethylaminohydrolase (DDAH) enzymes that convert ADMA into citrulline and dimethylamine. DDAH is highly expressed in the liver, which makes the liver a key organ in the regulation of the plasma ADMA concentration. The prominent role of the liver in the elimination of ADMA and the consequences of impaired hepatic function on ADMA levels will be discussed in this article.
- Published
- 2008
- Full Text
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