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Lim EJ, Fong KY, Li J, Chan YH, Aslim EJ, Ng LG, Gan VHL. Single versus multiple renal arteries in living donor kidney transplantation: A systematic review and patient-level meta-analysis. Clin Transplant 2023; 37:e15069. [PMID: 37410577 DOI: 10.1111/ctr.15069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/26/2023] [Accepted: 06/23/2023] [Indexed: 07/08/2023]
Abstract
INTRODUCTION Grafts with multiple renal arteries (MRAs) were historically considered a relative contraindication to transplantation due to the higher risk of vascular and urologic complications. This study aimed to evaluate graft and patient survival between single renal artery (SRA) and MRA living-donor kidney transplants. METHODS An electronic literature search was conducted on PubMed, EMBASE, and Scopus for prospective or retrospective studies comparing SRA versus MRA in living donor renal transplantation, with the provision of Kaplan-Meier curves for recipient overall survival (OS) or graft survival (GS). A graphical reconstructive algorithm was used to obtain OS and GS of individual patients, which was then pooled under random-effects individual patient data (IPD) meta-analysis using Cox-models to determine hazard ratios (HRs) and 95% confidence intervals (CIs). Meta-regression of baseline covariates versus HRs of OS and GS was performed for variables reported in 10 or more studies. RESULTS Fourteen studies were retrieved, of which 13 (8400 patients) reported OS and 9 (6912 patients) reported GS. There were no significant differences in OS (shared-frailty HR = .94, 95%CI = .85-1.03, p = .172) or GS (shared-frailty HR = .95, 95%CI = .83-1.08, p = .419) between SRA and MRA. This comparison remained non-significant even when restricted to open- or laparoscopic-only studies. Meta-regression yielded no significant associations of GS with donor age, recipient age, and percentage of double renal arteries within the MRA arm. CONCLUSIONS The similar rates of GS and OS between MRA and SRA grafts suggest that there is no need for discrimination between the two when evaluating donors for nephrectomy.
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Affiliation(s)
- Ee Jean Lim
- Department of Urology, Singapore General Hospital, Singapore, Singapore
| | - Khi Yung Fong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jingqiu Li
- Department of Urology, Singapore General Hospital, Singapore, Singapore
| | - Yiong Huak Chan
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | | | - Lay Guat Ng
- Department of Urology, Singapore General Hospital, Singapore, Singapore
- SingHealth Duke-NUS Transplant Centre, Singapore, Singapore
| | - Valerie Huei Li Gan
- Department of Urology, Singapore General Hospital, Singapore, Singapore
- SingHealth Duke-NUS Transplant Centre, Singapore, Singapore
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Broudeur L, Karam G, Chelghaf I, De Vergie S, Rigaud J, Perrouin Verbe MA, Branchereau J. Feasibility and safety of laparoscopic living donor nephrectomy in case of right kidney and multiple-renal artery kidney: a systematic review of the literature. World J Urol 2019; 38:919-927. [PMID: 31129713 DOI: 10.1007/s00345-019-02821-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 05/21/2019] [Indexed: 01/27/2023] Open
Abstract
PURPOSE To access the current status of the security and feasibility of right kidney (RK) and multiple-renal artery (MRA) laparoscopic living donor nephrectomy (LLDN) which are more challenging compared to left kidney (LK) and single renal artery (SRA) because of a shorter renal vein and more complex vascular anatomy. METHODS We did a systematic review of the literature according to the PRISMA recommendations, reporting RK or MRA donor nephrectomy performed with a laparoscopic technique compared to LK or SRA kidney LLDN. The identified and analyzed primary outcomes of interest were operating time (OT), warm ischemia time (WIT), rate of conversion and transfusion, donor length of stay (LOS), delayed graft function (DGF) and rate of graft loss (GL). RESULTS 16 comparative studies (1397 cases) of RK-LLDN and 12 comparative studies including 15 series (993 cases) of MRA-LLDN were selected. For RK-LLDN review, conversion rate was 0.8% and blood transfusion rate 0.2%, only one case of graft venous thrombosis was reported, OT was shorter in four studies and there was no any difference of DGF and GL rate compared to LK-LLDN. For MRA-LLDN review, conversion rate was 1.3% and blood transfusion rate 1.1%, OT and WIT were longer compared to SRA-LLDN, there were more ureteral complications in two studies, and no difference in terms of vascular complications and graft loss rate. CONCLUSION RK-LLDN and MRA-LLDN would be similar to LK-LLDN and SRA-LLDN in terms of feasibility and safety for the donor as well as graft function results for RK-LLDN.
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Affiliation(s)
- L Broudeur
- Department of Urology and Transplantation Surgery, University Hospital Center, 1 Place Alexis Ricordeau, 44093, Nantes Cedex 03, France
| | - G Karam
- Department of Urology and Transplantation Surgery, University Hospital Center, 1 Place Alexis Ricordeau, 44093, Nantes Cedex 03, France
| | - I Chelghaf
- Department of Urology and Transplantation Surgery, University Hospital Center, 1 Place Alexis Ricordeau, 44093, Nantes Cedex 03, France
| | - S De Vergie
- Department of Urology and Transplantation Surgery, University Hospital Center, 1 Place Alexis Ricordeau, 44093, Nantes Cedex 03, France
| | - J Rigaud
- Department of Urology and Transplantation Surgery, University Hospital Center, 1 Place Alexis Ricordeau, 44093, Nantes Cedex 03, France
| | - M A Perrouin Verbe
- Department of Urology and Transplantation Surgery, University Hospital Center, 1 Place Alexis Ricordeau, 44093, Nantes Cedex 03, France
| | - Julien Branchereau
- Department of Urology and Transplantation Surgery, University Hospital Center, 1 Place Alexis Ricordeau, 44093, Nantes Cedex 03, France. .,Centre de Recherche en Transplantation et Immunologie (ou CRTI), Inserm, Nantes University, Nantes, France. .,Institut de Transplantation Urologie Néphrologie (ou ITUN), CHU Nantes, Nantes, France.
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Iwami D, Hotta K, Sasaki H, Hirose T, Higuchi H, Takada Y, Iwahara N, Shinohara N. A 2-mm Cutoff Value Is Reasonable and Feasible for Vascular Reconstruction in a Kidney Allograft With Multiple Arteries. Transplant Proc 2019; 51:1317-1320. [PMID: 31027827 DOI: 10.1016/j.transproceed.2019.01.137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 01/28/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND Multiple renal arteries are found in approximately 20% of living donor kidneys. We have been using an accessory artery cutoff diameter of 2 mm on preoperative computed tomography angiography to determine whether to sacrifice or reconstruct the artery. In this study, we assessed the validity and feasibility of this cutoff value. METHODS Living related kidney recipients from 2005 to 2013 were enrolled in this retrospective study. The diameter of the accessory artery and adverse events were evaluated. The lost parenchymal volume (%) due to vascular obstruction or branch ligation was calculated by computed tomography volumetry. RESULTS Among 128 kidney transplants, 30 donor kidneys had multiple arteries. Accessory arteries were reconstructed in 18 cases and intentionally ligated in 12 cases (mean diameter of accessory arteries, 3.10 [SD, 0.75] mm and 1.81 [SD, 0.28] mm, respectively). The mean estimated glomerular filtration rate at 1 or 12 months after transplant was not significantly different between the groups. Among reconstructed cases, 14 cases (77.8%) had good patency in the reconstructed arteries whereas the other 4 had vascular complications. The percentage of lost parenchymal volume due to ligation or occlusion of the reconstructed artery (calculated in 16 cases) was predictable with the following formula: lost volume (%) = 9.09 × diameter (mm) - 10.5 (P= .03, rs= 0.533 by Spearman rank correlation coefficient). This formula indicated that ligation of a 2-mm accessory artery leads to 7.68% loss of the renal parenchyma. CONCLUSIONS Reconstruction using a cutoff diameter of 2 mm is worth attempting in terms of the success rate and graft function. Sacrifice of a 2-mm accessory artery leads to parenchymal loss of <8%.
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Affiliation(s)
- Daiki Iwami
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
| | - Kiyohiko Hotta
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hajime Sasaki
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Takayuki Hirose
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Haruka Higuchi
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yusuke Takada
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Naoya Iwahara
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Nobuo Shinohara
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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Laparoscopic procurement of single versus multiple artery kidney allografts: Meta-analysis of comparative studies. Asian J Surg 2019; 42:61-70. [DOI: 10.1016/j.asjsur.2018.06.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/24/2018] [Accepted: 06/14/2018] [Indexed: 02/02/2023] Open
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Nakamura Y, Kihara Y, Iwamoto H, Ozawa Y, Sano T, Tomita K, Yokoyama T, Konno O, Ueno T, Kawachi S. A Novel Assessment of Vascular Regions Using an Intraoperative Near-Infrared Fluorescence. Transplant Proc 2017; 48:710-5. [PMID: 27234719 DOI: 10.1016/j.transproceed.2015.12.115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 12/30/2015] [Indexed: 01/16/2023]
Abstract
INTRODUCTION The risk of complications and transplant renal function increases in multiple arterial renal transplantations compared with single arterial renal transplantations. Even when multiple arteries are involved, with the introduction of laparoscopic nephrectomy, I mainly choose the left side kidney. Therefore, the number of renal artery reconstructions is increasing, and simultaneous imaging of arterial rebuilding during the donor nephrectomy is important. MATERIAL Between 2006 and 2015, we performed 132 living donor kidney transplantations at our center and analyzed 32 cases that were diagnosed pre- and intraoperatively. METHOD We compared the single renal artery (SRA) and multiple renal arteries (MRA) groups and analyzed the number of renal arteries, reconstruction methods, donor and recipient ages, sex, total ischemic times, and 1-month serum creatinine values. RESULT In the MRA and SRA groups, the average recipient age was 52.3 and 47.0 years, respectively, while the average donor age was 52.9 and 53.1 years, respectively. In SRA and MRA groups, total ischemic time (TIT) was 96.1 and 143.6 min (P < .01). Serum creatinine level 1 month post-transplantation was 1.54 and 1.25, respectively (P < .001). Here we experienced 12 cases of living renal donor nephrectomy with multiple vessels in which the vascular supply territory was first assessed in April 2013 using an intraoperative near-infrared fluorescence camera system. In addition, regarding TIT, it is possible to shorten surgery by using individual anastomosis and ligation. CONCLUSION By managing multiple donors; arteries by nephrectomy, it is possible to improve kidney transplantation results.
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Affiliation(s)
- Y Nakamura
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan.
| | - Y Kihara
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - H Iwamoto
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - Y Ozawa
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - T Sano
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - K Tomita
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - T Yokoyama
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - O Konno
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - T Ueno
- Division of Acute and Critical Care Medicine, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - S Kawachi
- Department of Digestive and Transplantation Surgery, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
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Laparoscopic living donor nephrectomy: making optimal use of donors without doing harm. Transplantation 2014; 98:1144. [PMID: 25050470 DOI: 10.1097/tp.0000000000000324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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