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Renal vein extension during living-donor kidney transplantation in the era of hand-assisted laparoscopic living-donor nephrectomy

Renal vein extension during living-donor kidney transplantation in the era of hand-assisted laparoscopic living-donor nephrectomy

Transplantation 99(4): 786-790

To evaluate retrospectively the clinical outcomes of living-donor kidney transplantations (LDKTs) using renal vein extension (RVE) for donor kidneys with short renal veins. Between January 2007 and December 2010, a total of 576 LDKTs were performed with grafts generated by hand-assisted laparoscopic living-donor nephrectomy: 31 (5.4%) transplants with RVE and 545 (94.6%) without an additional vascular procedure for renal vein lengthening. Outcomes were compared in patients who did and did not undergo the RVE procedure during transplantation. The 31 transplantation patients that underwent RVE involved procured kidneys with short renal veins: 29 were right-sided kidneys (93.5%) and 2 were left-sided kidneys (6.5%) (P=0.00). The RVE grafts were obtained from allogenic gonadal veins from female donors (n=16, 51.6%) and iliac veins from deceased donors (n=15, 48.4%). There were no postoperative complications related to the RVE procedure. During a follow-up period of 45.6±15.9 months, there were one (3.2%) graft failure among the 31 patients with RVE and four (0.7%) among the 545 patients without RVE. Delayed graft function was noted in one (3.2%) of the RVE patients and 22 (4.0%) of the patients without RVE. There was no statistically significant difference in graft failure (P=0.24) or delayed graft function (P=1.00) between the two groups. During LDKT, donor kidneys with exceptionally short renal veins, which may result in unavoidable tension during renal vein anastomosis, may be modified by RVE, thus facilitating a secure anastomosis and reducing postoperative complications.

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Accession: 055490980

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PMID: 25286054

DOI: 10.1097/tp.0000000000000443

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