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Pediatric LDLT (pediatric + ldlt)

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Medical Sciences	100%

Selected Abstracts

Strategy to prevent recurrent portal vein stenosis following interventional radiology in pediatric liver transplantation

LIVER TRANSPLANTATION, Issue 3 2010
Yukihiro Sanada
Portal vein complications after liver transplantation (LT) are serious complications that can lead to graft liver failure. Although the treatment of interventional radiology (IVR) by means of balloon dilatation for portal vein stenosis (PVS) after LT is an effective method, the high rate of recurrent PVS is an agonizing problem. Anticoagulant therapy for PVS is an important factor for preventing short-term recurrence following IVR, but no established regimen has been reported for the prevention of recurrent PVS following IVR. In our population of 197 pediatric patients who underwent living donor liver transplantation (LDLT), 22 patients (22/197, 11.2%) suffered PVS. In the 9 earliest patients, unfractionated heparin was the only anticoagulant therapy given following IVR. In the 13 more recent patients, 3-agent anticoagulant therapy using low-molecular-weight heparin, warfarin, and aspirin was employed. In the initial group of 9 patients, 5 patients (55.6%) suffered recurrent PVS and required repeat balloon dilatation. Among the 13 more recent patients, none experienced recurrent PVS (P = 0.002). In conclusion, our 3-agent anticoagulant therapy following IVR for PVS in pediatric LDLT can be an effective therapeutic strategy for preventing recurrent PVS. Liver Transpl 16:332,339, 2010. © 2010 AASLD. [source]

Hepatic artery reconstruction in pediatric living donor liver transplantation under 10 kg, without microscope use

PEDIATRIC TRANSPLANTATION, Issue 1 2010
Marcelo Enne
Enne M, Pacheco-Moreira L, Balbi E, Cerqueira A, Alves J, Valladares MA, Santalucia G, Martinho J-M. Hepatic artery reconstruction in pediatric living donor liver transplantation under 10 kg, without microscope use. Pediatr Transplantation 2010: 14: 48,51. © 2009 John Wiley & Sons A/S. Abstract:, Arterial reconstructions are pivotal, particularly in pediatric LDLT. We describe microsurgical reconstruction technique with 6× loupes and the clinical course of the first 23 less than 10 kg recipients in an initial LDLT program at a developing country. From March 2002 to October 2008, 286 liver transplantation were performed in 279 patients at our unit. There were 73 children and 206 adults. Among the children, 23 weighing less than 10 kg were recipients from living donors. Arterial reconstructions were with end-to-end interrupted suture using a 6× magnification loupe, according to the untied suture technique. All patients were prospectively followed by color Doppler ultrasound protocol. In our initial experience there were no arterial complications. With mean 24 months of follow-up, 19 patients (82%) are alive with good graft function. Hepatic artery in LDLT can be safely reconstructed with microsurgical techniques without microscope using, with 6× loupe magnification, and can achieve good results in patients under 10 kg. [source]

Lymphocytotoxic crossmatch in pediatric living donor liver transplantation

PEDIATRIC TRANSPLANTATION, Issue 2 2009
Takeshi Saito
Abstract:, To investigate the relationship between the pretransplant LCT results and the outcome after pediatric LDLT in a single center. The clinical data of 76 children undergoing 79 LDLTs including three retransplantations from May 2001 to January 2006 were retrospectively analyzed. All of the children had end-stage liver disease, and their median age was 1.4 yr (range, six months to 16.5 yr). Immunosuppressive therapy consisted of cyclosporine- or FK-based regimens with steroids. The children were classified into two groups (positive or negative) according to the pretransplant LCT results. The incidences of post-transplant surgical complications and of rejection episodes were compared. The relationship between the pretransplant LCT results and patient and graft survival rates was also analyzed. Seventy-nine pretransplant crossmatch tests were done; 13 (16.5%) were positive, and 66 (83.5%) were negative. No significant difference was found in the pretransplant clinical factors between two crossmatch groups. There was no significant difference between the groups in the incidence of vascular and biliary tract complications, in the rate of early or steroid-resistant cellular rejections, or in one- and three-yr patient (91.7%, 91.7%, respectively, in the positive group, 93.5%, 93.5%, respectively, in the negative group, p = 0.80) and graft (92.3%, 92.3%, respectively, in the positive group, 88.8%, 86.4%, respectively, in the negative group, p = 0.63) survival. The present study demonstrates that there is no reason to do pretransplant LCT to select the living donor for pediatric LDLT. [source]

The technical pitfalls of duct-to-duct biliary reconstruction in pediatric living-donor left-lobe liver transplantation: The impact of stent placement

PEDIATRIC TRANSPLANTATION, Issue 6 2008
Seisuke Sakamoto
Abstract:, The feasibility of D-D biliary reconstruction in pediatric LDLT using a left-lobe graft is still controversial. The medical records of 19 pediatric patients (age: four months to 16 yr) were reviewed. The biliary reconstruction was performed in an end-to-end fashion using absorbable sutures. An external biliary tube was placed into the bile duct through the anastomotic site (n = 10) and not through the anastomotic site (n = 4). An external tube was not used in five patients. The median follow-up was 4.7 yr. Nine patients had 11 biliary complications (leakage, n = 2; stricture, n = 7; stricture with leakage, n = 2). Due to biliary complications, conversion to an R-Y was required in five patients, and four patients required radiological or endoscopic management. The patients younger than one yr of age required conversion to R-Y within one wk after LDLT. The analysis of factors related to biliary complications revealed that the use of a trans-anastomotic biliary tube was the only significant factor to avoid biliary complications. In conclusion, D-D biliary reconstruction in LDLT using a left-lobe graft is feasible in selected cases, though it remains challenging. The use of a trans-anastomotic biliary tube is important to avoid biliary complications. [source]