19 results on '"Dols LF"'
Search Results
2. Hand-assisted retroperitoneoscopic versus standard laparoscopic donor nephrectomy: HARP-trial.
- Author
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Dols LF, Kok NF, Terkivatan T, Tran TC, d'Ancona FC, Langenhuijsen JF, zur Borg IR, Alwayn IP, Hendriks MP, Dooper IM, Weimar W, Ijzermans JN, Dols, Leonienke F C, Kok, Niels F M, Terkivatan, Turkan, Tran, T C Khe, d'Ancona, Frank C H, Langenhuijsen, Johan F, zur Borg, Ingrid R A M, and Alwayn, Ian P J
- Abstract
Background: Transplantation is the only treatment offering long-term benefit to patients with chronic kidney failure. Live donor nephrectomy is performed on healthy individuals who do not receive direct therapeutic benefit of the procedure themselves. In order to guarantee the donor's safety, it is important to optimise the surgical approach. Recently we demonstrated the benefit of laparoscopic nephrectomy experienced by the donor. However, this method is characterised by higher in hospital costs, longer operating times and it requires a well-trained surgeon. The hand-assisted retroperitoneoscopic technique may be an alternative to a complete laparoscopic, transperitoneal approach. The peritoneum remains intact and the risk of visceral injuries is reduced. Hand-assistance results in a faster procedure and a significantly reduced operating time. The feasibility of this method has been demonstrated recently, but as to date there are no data available advocating the use of one technique above the other.Methods/design: The HARP-trial is a multi-centre randomised controlled, single-blind trial. The study compares the hand-assisted retroperitoneoscopic approach with standard laparoscopic donor nephrectomy. The objective is to determine the best approach for live donor nephrectomy to optimise donor's safety and comfort while reducing donation related costs.Discussion: This study will contribute to the evidence on any benefits of hand-assisted retroperitoneoscopic versus standard laparoscopic donor nephrectomy.Trial Registration: Dutch Trial Register NTR1433. [ABSTRACT FROM AUTHOR]- Published
- 2010
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3. Five-year follow-up after live donor nephrectomy - cross-sectional and longitudinal analysis of a prospective cohort within the era of extended donor eligibility criteria.
- Author
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Janki S, Dols LF, Timman R, Mulder EE, Dooper IM, van de Wetering J, and IJzermans JN
- Subjects
- Adult, Aged, Cross-Sectional Studies, Donor Selection, Female, Follow-Up Studies, Glomerular Filtration Rate, Humans, Hypertension physiopathology, Longitudinal Studies, Male, Middle Aged, Quality of Life, Tissue and Organ Procurement, Living Donors psychology, Nephrectomy adverse effects, Nephrectomy methods
- Abstract
To establish the outcome of live kidney donors 5 years after donation, we investigated the risk for progressive renal function decline and quality of life (QoL). Data on estimated glomerular filtration rate (eGFR), creatinine, hypertension, QoL and survival were assessed in a prospective cohort of 190 donors, who donated between 2008 and 2010. Data were available for >90%. The mean age predonation was 52.8 ± 11.5 years, 30 donors having pre-existent hypertension. The mean follow-up was 5.1 ± 0.9 years. Eight donors had died due to non-donation-related causes. After 5 years, the mean eGFR was 60.2 (95% CI 58.7-62.7) ml/min/1.73 m
2 , with a median serum creatinine of 105.1 (95% CI 102.5-107.8) μmol/l. eGFR decreased to 33.6% and was longitudinally lower among men than women and declining with age (P < 0.001), without any association on QoL. Donors with pre-existent and new-onset hypertension demonstrated no progressive decline of renal function overtime compared to nonhypertensives. No donors were found with proteinuria, microalbuminuria or at risk for end-stage renal disease. After an initial decline postdonation, renal function remained unchanged overtime. Men and ageing seem to affect renal function overtime, while decreased renal function did not affect QoL. These data support further stimulation of living kidney donation programmes as seen from the perspective of donor safety., (© 2016 Steunstichting ESOT.)- Published
- 2017
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4. Can right-sided hand-assisted retroperitoneoscopic donor nephrectomy be advocated above standard laparoscopic donor nephrectomy: a randomized pilot study.
- Author
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Klop KW, Kok NF, Dols LF, Dor FJ, Tran KT, Terkivatan T, Weimar W, and Ijzermans JN
- Subjects
- Adult, Aged, Female, Graft Survival, Hand, Humans, Kidney Transplantation instrumentation, Laparoscopy instrumentation, Length of Stay, Living Donors, Male, Middle Aged, Nephrectomy instrumentation, Pain, Pilot Projects, Quality of Life, Surgical Procedures, Operative methods, Time Factors, Treatment Outcome, Warm Ischemia, Young Adult, Kidney Transplantation methods, Laparoscopy methods, Nephrectomy methods, Tissue and Organ Harvesting methods
- Abstract
Endoscopic techniques have contributed to early recovery and increased quality of life (QOL) of live kidney donors. However, laparoscopic donor nephrectomy (LDN) may have its limitations, and hand-assisted retroperitoneoscopic donor nephrectomy (HARP) has been introduced, mainly as a potentially safer alternative. In a randomized fashion, we explored the feasibility and potential benefits of HARP for right-sided donor nephrectomy in a referral center with longstanding expertise on the standard laparoscopic approach. Forty donors were randomly assigned to either LDN or HARP. Primary outcome was operating time, and secondary outcomes included QOL, complications, pain, morphine requirement, blood loss, warm ischemia time, and hospital stay. Follow-up time was 1 year. Skin-to-skin time did not significantly differ between both groups (162 vs. 158 min, P = 0.98). As compared to LDN, HARP resulted in a shorter warm ischemia time (2.8 vs. 3.9 min, P < 0.001) and increased blood loss (187 vs. 50 ml, P < 0.001). QOL, complication rate, pain, or hospital stay was not significantly different between the groups. Right-sided HARP is feasible but does not confer clear benefits over standard right-sided LDN yet. Further studies should explore the value of HARP in difficult cases such as the obese donor and the value of HARP for transplantation centers starting a live kidney donation program (Dutch Trial Register number: NTR3096). Nevertheless, HARP is a valuable addition to the surgical armamentarium in live donor surgery., (© 2013 Steunstichting ESOT. Published by John Wiley & Sons Ltd.)
- Published
- 2014
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5. Randomized controlled trial comparing hand-assisted retroperitoneoscopic versus standard laparoscopic donor nephrectomy.
- Author
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Dols LF, Kok NF, d'Ancona FC, Klop KW, Tran TC, Langenhuijsen JF, Terkivatan T, Dor FJ, Weimar W, Dooper IM, and Ijzermans JN
- Subjects
- Adult, Aged, Female, Humans, Male, Middle Aged, Quality of Life, Retroperitoneal Space, Warm Ischemia, Endoscopy methods, Kidney Transplantation, Laparoscopy methods, Living Donors, Nephrectomy methods
- Abstract
Background: Laparoscopic donor nephrectomy (LDN) has become the gold standard for live-donor nephrectomy, as it results in a short convalescence time and increased quality of life. However, intraoperative safety has been debated, as severe complications occur incidentally. Hand-assisted retroperitoneoscopic donor nephrectomy (HARP) is an alternative approach, combining the safety of hand-guided surgery with the benefits of endoscopic techniques and retroperitoneal access. We assessed the best approach to optimize donors' quality of life and safety., Methods: In two tertiary referral centers, donors undergoing left-sided nephrectomy were randomly assigned to HARP or LDN. Primary endpoint was physical function, one of the dimensions of the Short Form-36 questionnaire on quality of life, at 1 month postoperatively. Secondary endpoints included intraoperative events and operation times. Follow-up was 1 year., Results: In total, 190 donors were randomized. Physical function at 1 month follow-up did not significantly differ between groups (estimated difference, 1.79; 95% confidence interval, -4.1 to 7.68; P=0.55). HARP resulted in significantly shorter skin-to-skin time (mean, 159 vs. 188 min; P<0.001), shorter warm ischemia time (2 vs. 5 min; P<0.001) and a lower intraoperative event rate (5% vs. 11%, P=0.117). Length of stay (both 3 days; P=0.135) and postoperative complication rate (8% vs. 8%; P=1.00) were not significantly different. Potential graft-related complications did not significantly differ (6% vs. 13%; P=0.137)., Conclusions: Compared with LDN, left-sided HARP leads to similar quality of life, shorter operating time, and warm ischemia time. Therefore, we recommend HARP as a valuable alternative to the laparoscopic approach for left-sided donor nephrectomy.
- Published
- 2014
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6. Quality of life of elderly live kidney donors.
- Author
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Klop KW, Dols LF, Weimar W, Dooper IM, IJzermans JN, and Kok NF
- Subjects
- Adult, Age Factors, Aged, Chi-Square Distribution, Follow-Up Studies, Humans, Middle Aged, Netherlands, Pain, Postoperative etiology, Pain, Postoperative psychology, Prospective Studies, Recovery of Function, Surveys and Questionnaires, Time Factors, Donor Selection, Kidney Transplantation adverse effects, Living Donors supply & distribution, Nephrectomy adverse effects, Quality of Life
- Abstract
Background: Expanding the use of elderly live donors may help meet the demand for kidney transplants. The aim of this study was to quantify the effect of the surgical procedure on the quality of life (QOL) of elderly donors compared with younger donors., Methods: Alongside three prospective studies (two randomized) running between May 2001 and October 2010, we asked 501 live donors to fill out the Short Form-36 questionnaire preoperatively and at 1, 3, 6, and 12 months postoperatively. We defined live donors 60 years or older as elderly. Between-group analyses regarding QOL were adjusted for baseline values and gender., Results: One hundred thirty-five donors were older and 366 donors were younger than 60 years. The response rate was high, with 87% at 12 months postoperatively. Elderly donors less often scored as American Society of Anaesthesiology classification 1 (60% vs. 81%; P<0.001) indicating a higher rate of minor comorbidity. At 1 month postoperatively, between-group analysis showed a significant advantage in QOL in favor of the elderly group regarding the dimensions "bodily pain" (7 points; P=0.001), "role physical" (18 points; P<0.001), and "vitality" (5 points; P=0.008). At 3 months, "bodily pain" (3 points, P=0.04) and "role physical" (8 points, P=0.02) were still in favor of the older group. At 6 and 12 months, "physical function" was in favor of the younger group (3 and 5 points, respectively; P=0.04 and P<0.001)., Conclusions: This study demonstrates that elderly donors recover relatively fast. The perspective of excellent postoperative QOL may help convince elderly individuals to donate.
- Published
- 2013
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7. Cost-effectiveness of hand-assisted retroperitoneoscopic versus standard laparoscopic donor nephrectomy: a randomized study.
- Author
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Klop KW, Kok NF, Dols LF, d'Ancona FC, Adang EM, Grutters JP, and IJzermans JN
- Subjects
- Adult, Aged, Cost-Benefit Analysis, Female, Humans, Kidney Transplantation economics, Laparoscopy economics, Laparoscopy methods, Living Donors, Male, Middle Aged, Single-Blind Method, Hand-Assisted Laparoscopy economics, Hand-Assisted Laparoscopy methods, Nephrectomy economics, Nephrectomy methods, Tissue and Organ Harvesting economics, Tissue and Organ Harvesting methods
- Abstract
Background: Live kidney donation has a clear economical benefit over dialysis and deceased-donor transplantation. Compared with mini-incision open donor nephrectomy, laparoscopic donor nephrectomy (LDN) is considered cost-effective. However, little is known on the cost-effectiveness of hand-assisted retroperitoneoscopic donor nephrectomy (HARP). This study evaluated the cost-effectiveness of HARP versus LDN., Methods: Alongside a randomized controlled trial, the cost-effectiveness of HARP versus LDN was assessed. Eighty-six donors were included in the LDN group and 82 in the HARP group. All in-hospital costs were recorded. During follow-up, return-to-work and other societal costs were documented up to 1 year. The EuroQol-5D questionnaire was administered up to 1 year postoperatively to calculate quality-adjusted life years (QALYs)., Results: Mean total costs from a healthcare perspective were $8935 for HARP and $8650 for LDN (P = 0.25). Mean total costs from a societal perspective were $16,357 for HARP and $16,286 for LDN (P = 0.79). On average, donors completely resumed their daytime jobs on day 54 in the HARP group and on day 52 in the LDN group (P = 0.65). LDN resulted in a gain of 0.005 QALYs., Conclusions: Absolute costs of both procedures are very low and the differences in costs and QALYs between LDN and HARP are very small. Other arguments, such as donor safety and pain, should determine the choice between HARP and LDN.
- Published
- 2013
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8. Systematic review and meta-analysis of the relation between body mass index and short-term donor outcome of laparoscopic donor nephrectomy.
- Author
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Lafranca JA, Hagen SM, Dols LF, Arends LR, Weimar W, Ijzermans JN, and Dor FJ
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- Chi-Square Distribution, Humans, Kidney Transplantation adverse effects, Nephrectomy adverse effects, Odds Ratio, Postoperative Complications etiology, Risk Factors, Time Factors, Treatment Outcome, Body Mass Index, Donor Selection, Kidney Transplantation methods, Laparoscopy adverse effects, Living Donors, Nephrectomy methods
- Abstract
In this era of organ donor shortage, live kidney donation has been proven to increase the donor pool; however, it is extremely important to make careful decisions in the selection of possible live donors. A body mass index (BMI) above 35 is generally considered as a relative contraindication for donation. To determine whether this is justified, a systematic review and meta-analysis were carried out to compare perioperative outcome of live donor nephrectomy between donors with high and low BMI. A comprehensive literature search was performed in MEDLINE, Embase, and CENTRAL (the Cochrane Library). All aspects of the Preferred Reporting Items for Systematic Reviews and Meta-analyses statement were followed. Of 14 studies reviewed, eight perioperative donor outcome measures were meta-analyzed, and, of these, five were not different between BMI categories. Three found significant differences in favor of low BMI (29.9 and less) donors with significant mean differences in operation duration (16.9 min (confidence interval (CI) 9.1-24.8)), mean difference in rise in serum creatinine (0.05 mg/dl (CI 0.01-0.09)), and risk ratio for conversion (1.69 (CI 1.12-2.56)). Thus, a high body mass index (BMI) alone is no contraindication for live kidney donation regarding short-term outcome.
- Published
- 2013
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9. Attitudes among surgeons towards live-donor nephrectomy: a European update.
- Author
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Klop KW, Dols LF, Kok NF, Weimar W, and Ijzermans JN
- Subjects
- Attitude to Health, Body Mass Index, Comorbidity, Endoscopy methods, Europe, Health Knowledge, Attitudes, Practice, Humans, Kidney pathology, Kidney Transplantation methods, Living Donors, Surgical Procedures, Operative, Surveys and Questionnaires, Time Factors, Tissue and Organ Harvesting, Nephrectomy methods
- Abstract
Background: The increasing number of living kidney donors in the last decade has led to the development of novel surgical techniques for live-donor nephrectomy. The aim of the present study was to evaluate the current status of the surgical approach in Europe., Methods: A survey was sent to 119 transplant centers in 12 European countries. Questions included the number of donors, the technique used, and the acceptance of donors with comorbidities., Results: Ninety-six centers (81%) replied. The number of living donors per center ranged from 0 to 124. Thirty-one institutions (32%) harvested kidneys using open techniques only. Six centers (6%) applied both endoscopic and open techniques; 59 centers (61%) performed endoscopic donor nephrectomy only. Lack of evidence that endoscopic techniques provide superior results was the main reason for still performing open donor nephrectomy. In seven centers, a lumbotomy is still performed. Seventy-two centers (75%) accept donors with a body mass index of more than 30 kg/m, the median upper limit in these centers was 35 kg/m (range, 31-40). Donors with an American Society of Anesthesiologists classification higher than 1 were accepted in 55% of the centers., Conclusions: Live kidney donation in general and minimally invasive donor nephrectomy in particular are more commonly applied in Northern and Western Europe. However, a classic lumbotomy is still performed in a minority of centers. Because minimally invasive techniques have been proven superior, more attention should be given to educational programs in this field to let many kidney donors benefit.
- Published
- 2012
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10. Use of stenting in living donor kidney transplantation: does it reduce vesicoureteral complications?
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Dols LF, Terkivatan T, Kok NF, Tran TC, Weimar W, IJzermans JN, and Roodnat JI
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- Adolescent, Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Urinary Bladder Diseases prevention & control, Young Adult, Kidney Transplantation, Living Donors, Stents
- Abstract
The risk of urologic complications after kidney transplantation is 0% to 30%. We studied the impact of prophylactic stent placement during transplantation by assessing the necessity for a percutaneous nephrostomy (PCN) after living kidney transplantation. From January 2003 to December 2007, 342 living donor kidney transplantations were performed. Intra- and postoperative data were collected retrospectively from 285 patients with stent and 57 without. Baseline characteristics were not significantly different between groups, except for the number of previous transplantations: 31 (11%) patients with versus 16 (28%) without stent had a history of >1 transplantation (P < .001). From patients with PCN, 55 (87%) patients in the stented group received a PCN <3 months versus 11 (100%) in the nonstented group (P = .71). The reoperation rate for urologic complications was similar in both groups (3% (stented) versus 5% (nonstented; P = .43). In multivariate analysis, risk for PCN was similar in both groups (odds ratio 1.21, 95% confidence interval 0.5-2.5). Recipient survival was not significantly different. One- and 3-year death-censored graft survival was not significantly different between stented (89% and 84%) and nonstented group (90% and 85%, P = .71 and P = .96). Ureteral stent insertion is not associated with a reduced rate of PCN placement in living donor kidney transplantation., (Copyright © 2011 Elsevier Inc. All rights reserved.)
- Published
- 2011
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11. Living kidney donors: impact of age on long-term safety.
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Dols LF, Kok NF, Roodnat JI, Tran TC, Terkivatan T, Zuidema WC, Weimar W, and Ijzermans JN
- Subjects
- Adolescent, Adult, Age Factors, Aged, Aged, 80 and over, Female, Follow-Up Studies, Glomerular Filtration Rate, Graft Survival, Humans, Kidney surgery, Kidney Function Tests, Male, Middle Aged, Prospective Studies, Young Adult, Kidney physiopathology, Kidney Transplantation mortality, Living Donors
- Abstract
The safety of older live kidney donors, especially the decline in glomerular filtration rate (GFR) after donation, has been debated. In this study we evaluated long-term renal outcome in older live kidney donors. From 1994 to 2006 follow-up data of 539 consecutive live kidney donations were prospectively collected, during yearly visits to the outpatient clinic. Donors were categorized into two groups, based on age: < 60 (n = 422) and ≥ 60 (n = 117). Elderly had lower GFR predonation (80 vs. 96 mL/min respectively, p < 0.001). During median follow-up of 5.5 years, maximum decline in eGFR was 38% ± 9% and the percentage maximum decline was not different in both groups. On long-term follow-up, significantly more elderly had an eGFR < 60 mL/min (131 (80%) vs. 94 (31%), p < 0.001). However, renal function was stable and no eGFR of less than 30 mL/min was seen. In multivariate analysis higher body mass index (HR 1.09, 95%CI 1.03-1.14) and more HLA mismatches (HR 1.17, 95%CI 1.03-1.34) were significantly correlated with worse graft survival. Donor age did not influence graft survival. After kidney donation decline in eGFR is similar in younger and older donors. As kidney function does not progressively decline, live kidney donation by elderly is considered safe., (©2011 The Authors Journal compilation©2011 The American Society of Transplantation and the American Society of Transplant Surgeons.)
- Published
- 2011
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12. Long-term follow-up of a randomized trial comparing laparoscopic and mini-incision open live donor nephrectomy.
- Author
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Dols LF, Ijzermans JN, Wentink N, Tran TC, Zuidema WC, Dooper IM, Weimar W, and Kok NF
- Subjects
- Adult, Aged, Fatigue etiology, Female, Follow-Up Studies, Glomerular Filtration Rate, Graft Survival, Humans, Hypertension, Kidney Transplantation methods, Laparoscopy methods, Laparoscopy psychology, Male, Middle Aged, Minimally Invasive Surgical Procedures, Nephrectomy psychology, Quality of Life, Tissue and Organ Harvesting methods, Treatment Outcome, Living Donors psychology, Nephrectomy methods
- Abstract
Long-term physical and psychosocial effects of laparoscopic and open kidney donation are ill defined. We performed long-term follow-up of 100 live kidney donors, who had been randomly assigned to mini-incision open donor nephrectomy (MIDN) or laparoscopic donor nephrectomy (LDN). Data included blood pressure, glomerular filtration rate, quality of life (SF-36), fatigue (MFI-20) and graft survival. After median follow-up of 6 years clinical and laboratory data were available for 47 donors (94%) in both groups; quality of life data for 35 donors (70%) in the MIDN group, and 37 donors (74%) in the LDN group. After 6 years, mean estimated glomerular filtration rates did not significantly differ between MIDN (75 mL/min) and LDN (76 mL/min, p = 0.39). Most dimensions of the SF-36 and MFI-20 did not significantly differ between groups at long-term follow-up, and most scores had returned to baseline. Twelve percent of the donors reported persistent complaints, but no major complications requiring surgical intervention. Five-year death-censored graft survival was 90% for LDN, and 85% for MIDN (p = 0.50). Long-term outcome of live kidney donation is excellent from the perspective of both the donor and the recipient., (©2010 The Authors Journal compilation©2010 The American Society of Transplantation and the American Society of Transplant Surgeons.)
- Published
- 2010
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13. Optimizing left-sided live kidney donation: hand-assisted retroperitoneoscopic as alternative to standard laparoscopic donor nephrectomy.
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Dols LF, Kok NF, Terkivatan T, Tran KT, Alwayn IP, Weimar W, and Ijzermans JN
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- Adult, Aged, Female, Glomerular Filtration Rate, Humans, Living Donors, Male, Middle Aged, Peritoneum surgery, Postoperative Period, Prospective Studies, Treatment Outcome, Kidney Transplantation methods, Laparoscopy methods, Nephrectomy methods, Surgical Procedures, Operative
- Abstract
Laparoscopic donor nephrectomy (LDN) is less traumatic and painful than the open approach, with shorter convalescence time. Hand-assisted retroperitoneoscopic (HARP) donor nephrectomy may have benefits, particularly in left-sided nephrectomy, including shorter operation and warm-ischemia time (WIT) and improved safety. We evaluated outcomes of HARP alongside LDN. From July 2006 to May 2008, 20 left-sided HARP procedures and 40 left-sided LDNs were performed. Intra and postoperative data were prospectively collected and analysis on outcome of both techniques was performed. More female patients underwent HARP compared to LDN (75% vs. 40%, P = 0.017). Other baseline characteristics were not significantly different. Median operation time and WIT were shorter in HARP (180 vs. 225 min, P = 0.002 and 3 vs. 5 min, P = 0.007 respectively). Blood loss did not differ (200 ml vs.150 ml, P = 0.39). Intra and postoperative complication rates for HARP and LDN (respectively 10% vs. 25%, P = 0.17 and 5% vs. 15%, P = 0.25) were not significantly different. During median follow-up of 18 months estimated glomerular filtration rates in donors and recipients and graft- and recipient survival did not differ between groups. Hand-assisted retroperitoneoscopic donor nephrectomy reduces operation and warm ischemia times, and provides at least equal safety. Hand-assisted retroperitoneoscopic may be a valuable alternative for left-sided LDN.
- Published
- 2010
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14. Live donor nephrectomy: a review of evidence for surgical techniques.
- Author
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Dols LF, Kok NF, and Ijzermans JN
- Subjects
- Humans, Kidney Failure, Chronic surgery, Laparoscopy methods, Laparoscopy trends, Minimally Invasive Surgical Procedures methods, Minimally Invasive Surgical Procedures trends, Nephrectomy trends, Obesity surgery, Renal Artery abnormalities, Robotics methods, Robotics trends, Tissue and Organ Harvesting trends, Kidney Transplantation methods, Living Donors, Nephrectomy methods, Tissue and Organ Harvesting methods
- Abstract
Summary: Live kidney donation is an important alternative for patients with end-stage renal disease. To date, the health of live kidney donors at long-term follow-up is good, and the procedure is considered to be safe. Surgical practice has evolved from the open lumbotomy, through mini-incision muscle-splitting open donor nephrectomy, to minimally invasive laparoscopic techniques. There are different minimally invasive techniques, including standard laparoscopic, hand-assisted laparoscopic, hand-assisted retroperitoneoscopic, pure retroperitoneoscopic, and robotic-assisted live donor nephrectomy. At present, these minimally invasive techniques are subjected to clinical trials focusing on surgical outcome, quality of life, costs, long-term follow-up, and also morbidity of donor, recipient, and graft. In practice, many centers only perform donor nephrectomy on young healthy donors with normal weight. There is increasing evidence that donor nephrectomy with multiple arteries, right kidney and obese patients can be done with precaution. In this review, we address the surgical part of live kidney donation and the best level of evidence for all surgical techniques and issues surrounding the technique.
- Published
- 2010
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15. Laparoscopic donor nephrectomy: a plea for the right-sided approach.
- Author
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Dols LF, Kok NF, Alwayn IP, Tran TC, Weimar W, and Ijzermans JN
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- Adult, Female, Functional Laterality, Humans, Male, Middle Aged, Patient Selection, Renal Artery anatomy & histology, Renal Veins anatomy & histology, Retrospective Studies, Safety, Laparoscopy methods, Nephrectomy methods, Tissue and Organ Harvesting methods
- Abstract
Background: Laparoscopic donor nephrectomy (LDN) has become the preferred procedure for live donor nephrectomy. Most transplant surgeons are reluctant toward right-sided LDN (R-LDN) fearing short vessels and renal vein thrombosis., Methods: In our institution, selection of the appropriate kidney for donation was based on the same criteria that traditionally governed open donor nephrectomy. All intraoperative and postoperative data were prospectively recorded., Results: One hundred fifty-nine R-LDNs (56%) and 124 left-sided LDNs (L-LDN, 44%) were performed. Demographics did not significantly differ. Complications occurred in 10 (6%) vs. 23 (19%) procedures (R-LDN vs. L-LDN, P=0.002), resulting in 2 and 11 conversions, respectively. Right-sided kidney donation was the only independent preventative factor for complications in multivariate analysis (P=0.008, Odds ratio 0.33). R-LDN was associated with shorter operation time (mean 202 vs. 247 min, P<0.001) and less blood loss (139 vs. 294 mL, P<0.001). Hospital stay was 3 days in both groups. With regard to the recipients, the second warm ischemia time was similar (29 vs. 28 min, P=0.699)., Conclusions: R-LDN is faster and safer than L-LDN and does not adversely affect graft function. R-LDN may be advocated to allow donors to benefit from the advantages of laparoscopic surgery.
- Published
- 2009
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16. [Improvement of 5 year survival rate after liver resection for colorectal metastases between 1984-2006].
- Author
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Dols LF, Verhoef C, Eskens FA, Schouten O, Nonner J, Hop WC, Méndez Romero A, de Man RA, van der Linden E, Dwarkasing RS, and IJzermans JN
- Subjects
- Adult, Aged, Aged, 80 and over, Chemotherapy, Adjuvant, Colorectal Neoplasms mortality, Colorectal Neoplasms surgery, Female, Humans, Liver Neoplasms surgery, Male, Middle Aged, Multivariate Analysis, Neoplasm Metastasis, Netherlands, Prognosis, Radiotherapy, Retrospective Studies, Survival Rate, Time Factors, Colorectal Neoplasms pathology, Disease-Free Survival, Liver Neoplasms mortality, Liver Neoplasms secondary
- Published
- 2009
17. Surgical aspects of live kidney donation.
- Author
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Dols LF, Kok NF, and Ijzermans JN
- Subjects
- Humans, Kidney Transplantation methods, Living Donors
- Abstract
In the early 1990s live kidney donation regained popularity to meet the demand of kidney transplantation. Significant developments in the field of live kidney donation have established live donation as the potential prime source of kidney transplants in the future. Nowadays management focuses on logistic and immunological innovations, and improvements in care of the live donor. However, a flawless surgical procedure in donors and recipients is a prerequisite for further expansion of live kidney donor transplantation. From a surgical perspective the introduction of the laparoscopic approach has been a major breakthrough. Less invasive techniques to procure live donor kidneys have been held responsible for a steep increase in the number of live donors. In addition, less invasive imaging, improvements in perioperative care, and novel insights in follow-up have all improved the care of the live donor. Live kidney donation may develop as the most promising source of renal organs since artificial kidneys, xenografts and stem cell therapy for restoring intrinsic kidney function will probably not find application on large scale in the near future.
- Published
- 2009
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18. Long-term cardiac outcome in high-risk patients undergoing elective endovascular or open infrarenal abdominal aortic aneurysm repair.
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Schouten O, Lever TM, Welten GM, Winkel TA, Dols LF, Bax JJ, van Domburg RT, Verhagen HJ, and Poldermans D
- Subjects
- Aged, Female, Follow-Up Studies, Humans, Male, Risk Factors, Time Factors, Treatment Outcome, Angioplasty adverse effects, Angioplasty methods, Aortic Aneurysm, Abdominal surgery, Heart Diseases etiology, Heart Diseases mortality
- Abstract
Objectives: To assess long-term outcome of patients at high cardiac risk undergoing endovascular or open AAA repair., Methods: Patients undergoing open or endovascular infrarenal AAA repair with >or=3 cardiac risk factors and preoperative cardiac stress testing (DSE) at 2 university hospitals were studied. Main outcome was cardiac event free and overall survival. Multivariate Cox regression analysis was used to evaluate the influence of type of AAA repair on long-term outcome., Results: In 124 patients (55 endovascular, 69 open) the number and type of cardiac risk factors, medication use and DSE results were similar in both groups. In multivariable analysis, adjusting for cardiac risk factors, stress test results, medication use, and propensity score endovascular repair was associated with improved cardiac event free survival (HR 0.54; 95% CI 0.30-0.98) but not with an overall survival benefit (HR 0.73; 95% CI 0.37-1.46). Importantly, statin therapy was associated with both improved overall survival (HR 0.42; 95% CI 0.21-0.83) and cardiac event free survival (HR 0.45; 95% CI 0.23-0.86)., Conclusions: The perioperative cardiac benefit of endovascular AAA repair in high cardiac risk patients is sustained during long-term follow-up provided patients are on optimal medical therapy but it is not associated with improved overall long-term survival.
- Published
- 2008
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19. Complex vascular anatomy in live kidney donation: imaging and consequences for clinical outcome.
- Author
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Kok NF, Dols LF, Hunink MG, Alwayn IP, Tran KT, Weimar W, and Ijzermans JN
- Subjects
- Adult, Female, Humans, Kidney diagnostic imaging, Kidney pathology, Kidney Transplantation diagnostic imaging, Kidney Transplantation pathology, Longitudinal Studies, Male, Middle Aged, Predictive Value of Tests, Prospective Studies, Renal Artery diagnostic imaging, Renal Artery pathology, Renal Artery surgery, Renal Circulation physiology, Renal Veins diagnostic imaging, Renal Veins pathology, Renal Veins surgery, Treatment Outcome, Angiography, Digital Subtraction, Kidney blood supply, Kidney Transplantation physiology, Living Donors, Magnetic Resonance Imaging
- Abstract
Background: Live donor kidneys with multiple arteries are associated with surgical complexity for removal and increased rate of recipient ureteral complications. We evaluated the outcome of vascular imaging and the clinical consequences of multiple arteries and veins., Methods: From 2001 to 2005 data of 288 live kidney donations and transplantations were prospectively collected. Vascular anatomy at operation was compared with vascular anatomy as imaged by magnetic resonance imaging (MRI) or subtraction angiography, and consequences of multiple vessels were investigated., Results: Simple renal anatomy with a solitary artery and vein was present in 208 (72%) kidneys. Sixty (21%) transplants had multiple arteries. Thirty (10%) transplants had multiple veins. Magnetic resonance imaging failed to predict arterial anatomy in 23 of 220 donors (10%) compared with 3 of 101 (3%) after angiography. The presence of multiple veins did not influence outcomes after nephrectomy in general. Multiple arteries did not affect clinical outcomes in open donor nephrectomy (n=103). In laparoscopic donor nephrectomy (n=185) multiple arteries were associated with longer operation times (245 vs. 221 min, P=0.023) and increased blood loss (225 vs. 220 mL, P=0.029). In general, neither multiple arteries nor vascular reconstructions influenced recipient creatinine clearance or ureteral complication rate. However, accessory arteries to the lower pole correlated with an increased rate of ureteral complications (47% vs. 14%, P=0.01)., Conclusions: Multiple arteries may increase operation time. Accessory lower pole arteries are associated with a higher rate of recipient ureteral complications indicating the importance of arterial imaging. Currently, both magnetic resonance imaging and angiography provide suboptimal information on renal vascular anatomy.
- Published
- 2008
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