R Gander1, M Asensio2, J A Molino2, G F Royo2, L E Lara3, M López4, M López4, G Ariceta5. 1. Department of Pediatric Surgery, Pediatric Urology and Renal Transplant Unit, University Hospital Vall d'Hebron Barcelona, Hospital Vall d'Hebron, Passeig de la Vall d'Hebrón 119-129, 08035, Barcelona, Spain. Electronic address: rgander@vhebron.net. 2. Department of Pediatric Surgery, Pediatric Urology and Renal Transplant Unit, University Hospital Vall d'Hebron Barcelona, Hospital Vall d'Hebron, Passeig de la Vall d'Hebrón 119-129, 08035, Barcelona, Spain. 3. Department of Pediatric Nephrology, University Hospital Vall d'Hebron, Hospital Vall d'Hebron, Passeig de la Vall d'Hebrón 119-129, 08035, Barcelona, Spain. 4. Department of Pediatric Surgery, University Hospital Vall d'Hebron, Hospital Vall d'Hebron, Passeig de la Vall d'Hebrón 119-129, 08035, Barcelona, Spain. 5. Department of Pediatric Nephrology, University Hospital Vall d'Hebron, Hospital Vall d'Hebron, Passeig de la Vall d'Hebrón 119-129, 08035, Barcelona, Spain; School of Medicine, Universitat Autonoma de Barcelona, Hospital Vall d'Hebron, Passeig de la Vall d'Hebrón 119-129, 08035, Barcelona, Spain.
Abstract
INTRODUCTION: Pediatric donation is underutilized because of presumed increased risk of vascular thrombosis (VT) and graft loss. Using young pediatric donors (YPDs) for young pediatric recipients (YPRs) is suggested to be even at greater risk and therefore precluded in many centers. The aim of this study was to analyze the outcome of kidney transplantation (KT) from YPD to age-matched YPR. PATIENT AND METHODS: A retrospective study of 118 pediatric KT performed between January 2007-July 2017. The authors identified KT with YPD (considered as those aged <6 years) and age-matched YPR. Organ allocation was performed based on the best paired size (YPR for YPR). Data were collected regarding donor and recipient characteristics, surgical and urological complications, graft loss, and outcomes. RESULTS: Forty cases of YPD to age-matched YPR were identified (33.89% of the cohort). Mean recipient and donor age were 2.9 years (SD 1.68) and 2.24 years (SD 1.5), respectively. Mean recipient and donor weight were 12.7 kg (SD 4.1) and 13.7 kg (SD 4.15), respectively. Thirty of those young recipients (75%) weighed <15 kg. The most frequent primary renal disease was the congenital nephrotic syndrome. Nine out of 40 patients (22.5%) had received a previous KT before. Three received a combined liver-KT. Eight (20%) were classified as high immunological risk and 19 (47.5%) as high thrombotic risk. All allografts were implanted extraperitoneally and anastomosed to the iliac vessels. Major complications requiring reintervention occurred in seven patients (17.5%): three VT, three bleeding episodes, and one ureteral necrosis. Remarkably, only one surgical complication (VT) resulted in graft loss. Regarding long-term urological complications, four patients (10%) all with obstructive uropathy-developed vesicoureteral reflux to the graft. Actuarial graft survival at 1,5, and 10 years in the YPD to age-matched YPR cohort was 83% -78% -78%, respectively. Mean follow-up was 3.6 years (SD 3.2) (r = 7-10). Over time, eight patients lost their graft, not related to surgical factors in seven out of eight cases. CONCLUSION: The authors suggest that KT using YPD for age-match YPR yields good results in expert centers, even in high-risk patients and is associated with good graft survival. In this series, surgical complications were rarely related to graft loss.
INTRODUCTION: Pediatric donation is underutilized because of presumed increased risk of vascular thrombosis (VT) and graft loss. Using young pediatric donors (YPDs) for young pediatric recipients (YPRs) is suggested to be even at greater risk and therefore precluded in many centers. The aim of this study was to analyze the outcome of kidney transplantation (KT) from YPD to age-matched YPR. PATIENT AND METHODS: A retrospective study of 118 pediatric KT performed between January 2007-July 2017. The authors identified KT with YPD (considered as those aged <6 years) and age-matched YPR. Organ allocation was performed based on the best paired size (YPR for YPR). Data were collected regarding donor and recipient characteristics, surgical and urological complications, graft loss, and outcomes. RESULTS: Forty cases of YPD to age-matched YPR were identified (33.89% of the cohort). Mean recipient and donor age were 2.9 years (SD 1.68) and 2.24 years (SD 1.5), respectively. Mean recipient and donor weight were 12.7 kg (SD 4.1) and 13.7 kg (SD 4.15), respectively. Thirty of those young recipients (75%) weighed <15 kg. The most frequent primary renal disease was the congenital nephrotic syndrome. Nine out of 40 patients (22.5%) had received a previous KT before. Three received a combined liver-KT. Eight (20%) were classified as high immunological risk and 19 (47.5%) as high thrombotic risk. All allografts were implanted extraperitoneally and anastomosed to the iliac vessels. Major complications requiring reintervention occurred in seven patients (17.5%): three VT, three bleeding episodes, and one ureteral necrosis. Remarkably, only one surgical complication (VT) resulted in graft loss. Regarding long-term urological complications, four patients (10%) all with obstructive uropathy-developed vesicoureteral reflux to the graft. Actuarial graft survival at 1,5, and 10 years in the YPD to age-matched YPR cohort was 83% -78% -78%, respectively. Mean follow-up was 3.6 years (SD 3.2) (r = 7-10). Over time, eight patients lost their graft, not related to surgical factors in seven out of eight cases. CONCLUSION: The authors suggest that KT using YPD for age-match YPR yields good results in expert centers, even in high-risk patients and is associated with good graft survival. In this series, surgical complications were rarely related to graft loss.
Authors: Luciana de Santis Feltran; Camila Penteado Genzani; Fernando Hamamoto; Mariana Janiques Barcia Magalhaes Fonseca; Maria Fernanda Carvalho de Camargo; Nara Léia Gelle de Oliveira; Fabio Cabral de Freitas Amaral; Jose Carlos Baptista; Paulo Cesar Koch Nogueira Journal: Pediatr Nephrol Date: 2021-10-14 Impact factor: 3.714