Duct-to-duct biliary anastomosis with a "corner-saving suture" technique in living-related liver transplantation

Management issues in post living donor liver transplant biliary strictures

Biliary complications are common after living donor liver transplant (LDLT) although with advancements in surgical understanding and techniques, the incidence is decreasing. Biliary strictures are more common than leaks. Endoscopic retrograde cholangiopancreatography (ERCP) is the first line modality of treatment of post LDLT biliary strictures with a technical success rate of 75%-80%. Most of ERCP failures are successfully treated by percutaneous transhepatic biliary drainage (PTBD) and rendezvous technique. A minority of patients may require surgical correction. ERCP for these strictures is technically more challenging than routine as well post deceased donor strictures. Biliary strictures may increase the morbidity of a liver transplant recipient, but the mortality is similar to those with or without strictures. Post transplant strictures are short segment and soft, requiring only a few session of ERCP before complete dilatation. Long-term outcome of patients with biliary stricture is similar to those without stricture. With the introduction of new generation cholangioscopes, ERCP success rate may increase, obviating the need for PTBD and surgery in these patients.

En Bloc Hilar Dissection of the Right Hepatic Artery in Continuity with the Bile Duct: a Technique to Reduce Biliary Complications After Adult Living-Donor Liver Transplantation

OBJECTIVE

Techniques that preserve the right hepatic artery and the common bile duct in continuity during the dissection may be associated with lower rates of biliary complications in living-donor liver transplants. This study sought to determine whether en bloc hilar dissections were associated with fewer biliary complications in living-donor liver transplants.

METHODS

This was a retrospective review of 41 adult LDLTs performed in a single, liver transplant center between February 2007 and September 2014. The primary outcome of interest was the occurrence of at least one of the following biliary complications: anastomotic leak, stricture, or biloma. The primary predictor of interest was the hilar dissection technique: conventional hilar dissection vs. en bloc hilar dissection.

RESULTS

A total of 41 LDLTs were identified, 24 had a conventional, and 17 an en bloc hilar biliary dissection. The occurrence of any biliary complication was significantly more common in the conventional hilar dissection group compared to the en bloc hilar dissection group (66.7 vs. 35.3%, respectively, p = 0.047). In particularly, anastomotic strictures were significantly more common in the conventional hilar dissection group compared to the en bloc hilar dissection group (54.2 vs. 23.5%., respectively, p = 0.049).

CONCLUSION

En bloc hilar dissection technique may decrease biliary complication rates in living donor liver transplants.

Targeting the Achilles' heel of adult living donor liver transplant: Corner-sparing sutures with mucosal eversion technique of biliary anastomosis

Biliary complications are regarded as the Achilles' heel of liver transplantation, especially for living donor liver transplantation (LDLT) due to smaller, multiple ducts and difficult ductal anatomy. Overall biliary complications reported in most series are between 10% and 30%. This study describes our modified technique of biliary anastomosis and its effects on incidence of biliary complications. This was a single-center retrospective study of 148 adult LDLT recipients between December 2011 and June 2014. Group 1 (n = 40) consisted of the first 40 patients for whom the standard technique of biliary anastomosis (minimal hilar dissection during donor duct division, high hilar division of the recipient bile duct, and preservation of the recipient duct periductal tissue) was used. Group 2 (n = 108) consisted of 108 patients for whom biliary anastomosis was done with the addition of corner-sparing sutures and mucosal eversion of the recipient duct to the standard technique. Primary outcome measures included biliary complications (biliary leaks and strictures). Biliary complications occurred in 7/40 patients in group 1 (17.5%) and in 4/108 patients in group 2 (3.7%). The technical factors mentioned above are aimed at preserving the blood supply of the donor and recipient ducts and hold the key for minimizing biliary complications in adult-to-adult LDLT.

Outcome of duct-to-duct vs. Roux-en-Y hepaticojejunostomy biliary anastomoses in below 15-kg pediatric liver transplant recipients

The best type of biliary anastomosis to use in lower weight pediatric liver transplant recipients is debatable. In this study, we share a single center's experience comparing the rate of anastomotic biliary complications based on the type of biliary anastomosis performed in this population of patients. A retrospective review of pediatric liver transplants for recipients weighing <15 kg from 11/2003 till 12/2011 was performed. Patients were grouped based on the type of biliary anastomosis into two groups: duct-to-duct (d-d) and Roux-en-Y hepaticojejunostomy (h-j) anastomoses. A total of 24 patients (12 males, 12 females) with a mean age of 26 ± 20 months and a mean weight of 9.27 ± 2.63 kg (range = 5.3-13.9 kg) were studied. All anastomotic complications occurred in patients who received left lateral segments. No statistical differences were found in the post-operative biliary (p = 0.86) or vascular (p = 0.99) complications between the two groups. Acknowledging the limited sample size, our data suggest that duct-to-duct anastomosis can be performed safely in pediatric liver transplantation recipients weighing below 15 kg.

Post-transplant biliary complications: an analysis from a predominantly living donor liver transplant center

BACKGROUND AND AIM

Biliary anastomosis is the Achilles' heel of liver transplant. The reported incidence of biliary complications is 5-15% after deceased donor liver transplantation, and 20-34% after right-lobe live donor liver transplantation (LDLT). We report our experience from an LDLT program.

METHODS

Between September 2006 and August 2010, 338 liver transplants were performed. Biliary reconstructions were done with an end-to-end choledochocholedochostomy in 307 cases. All recipients were monitored for any evidence of bile leak or stricture.

RESULTS

Of 338 transplants performed during this time period, 65 patients had biliary complications (19%). Of these, 30 were biliary leaks, and 35 patients had biliary stricture. Four were cut surface leaks, which settled without any intervention. One patient had leak from primary hepaticojejunostomy, which settled on conservative management. Twenty-five patients had anastomotic leaks, of which 17 underwent endoscopic retrograde cholangiopancreatography and stenting; another eight underwent re-exploration and hepaticojejunostomy. Forty-five patients had biliary strictures. Of these, 10 patients had bile leak initially, followed by biliary stricture. Patients with a double duct anastomosis had a significantly higher risk of developing biliary complications compared with those with a single duct anastomosis. There was no statistically significant difference in survival between those with or without biliary complications.

CONCLUSIONS

Biliary complications are common after LDLT. Most leaks will subsequently form strictures. Endoscopic retrograde cholangiopancreatography is the first-line treatment for biliary complications, with surgery required in a minority of cases. The incidence of biliary complications is higher in multiple duct anastomoses. Biliary complications are not associated with increased mortality.

Biliary complications in 106 consecutive duct-to-duct biliary reconstruction in right-lobe living donor liver transplantation performed in 1 year in a single center: a new surgical technique

OBJECTIVE

Biliary complications remain a major source of morbidity after living donor liver transplantation (LDLT). Of 109 consecutive right lobe (RL)-LDLTs performed in 1 year in our institution, we present the biliary complications among 106 patients who underwent a new duct-to-duct anastomosis technique known as University of Inonu.

METHODS

Of 153 liver transplantations performed in 1 year from January to December of 2008, 128 were LDLTs including 109 RL-LDLTs. The others were left or left lateral grafts. All RL-LDLT patients were adults, all of whom except three included a duct-to-duct anastomosis.

RESULTS

All, but three, biliary reconstructions were completed with a surgical technique, so called UI, in which 6-0 prolene sutures were used. Nine bile leaks were seen in 106 recipients (8.49%) performed in a duct-to-duct fashion in a time period of 1 to 4 weeks. Seventeen patients (16.03%) posed bile duct stricture (BDS). Five patients had both. Although endoscopic stent placement and percutaneous balloon dilatation, 4 patients continued to suffer from BDS on whom a permanent access hepatico-jejunostomy (PAHJ) procedures were performed.

CONCLUSION

We recommend a duct-to-duct biliary reconstruction because of its de facto advantages over other types of anastomosis provided the native duct is not diseased. After almost 2 years, the bile tract complication rate was 22.64%.

Biliary strictures in pediatric liver transplant recipients - early diagnosis and treatment results in excellent graft outcomes

Biliary complications in pediatric LT are important causes of morbidity and graft loss. We examined our recent pediatric LT experience to determine the outcome of post-LT biliary complications and their relationship to graft type. All initially isolated LTs performed at our institution between January 1, 2000 and August 20, 2007 were reviewed. Recipient data, donor type, graft survival, and biliary complications data were examined. Of 66 LTs, 32 patients received whole organ grafts, and 34 received partial grafts; 11 split, seven reduced size, and 16 live donors. Seventy-seven percent of patients had biliary reconstruction using a RYH. Overall, 17 (26%) developed biliary complications, and 15 were diagnosed within six months post-LT. Live donor and split allografts had more biliary complications than reduced size or whole allografts (50% and 36% vs. 0% and 16%, respectively). Seventy-one percent responded to percutaneous or endoscopic treatment. Five failed initial non-operative management and required reoperation (one retransplantation). These data suggest that biliary strictures occur most frequently in live donor and split allografts and that non-operative therapy is highly successful. Partial grafts are essential in pediatric LT, and a high clinical suspicion for biliary complications combined with aggressive and early diagnosis and therapy rarely results in graft loss.

Duct-to-duct biliary reconstruction in pediatric liver transplantation: one center's results

In pediatric liver transplantation, both for cadaveric and living-related patients, the Roux-en-Y hepaticojejunostomy is often preferable to biliary reconstruction. Duct-to-duct biliary reconstruction in pediatric patients has been utilized only in a limited numbers of studies. Here, we retrospectively review our experience with duct-to-duct biliary reconstruction in pediatric liver transplantation patients. Since September 2001, 46 liver transplantations have been performed in 44 patients (29 boys and 15 girls of mean age, 8.4 +/- 5.5 years). For the anastomoses, a corner-saving suture technique was used with 6-0 or 7-0 polypropylene monofilament nonabsorbable suture. A T tube was used in three patients, and in 11 patients, a straight feeding tube was inserted from the recipient common bile duct to the anastomotic site. A transhepatic biliary catheter insertion technique was used in 28 patients for external bile drainage; the remaining four patients had no tubes or stents. Four patients developed bile leakage in the early postoperative period. Three of these patients were treated with percutaneous drainage with excellent outcomes; the remaining patient required reoperation with a Roux-en-Y hepaticojejunostomy for bile leakage. Four biliary stenoses occurred in the late postoperative period. All biliary stenoses were successfully treated with balloon dilatation. There was no mortality or graft loss due to biliary complications. Of the 44 original patients, 36 (82%) are well at this time, with optimal liver function during follow-up (2-34 months). The remaining eight (18%) died during the study from acute respiratory distress syndrome (n=2), sepsis with multiorgan failure (n=5), and intracranial bleeding (n=1). Our results showed that duct-to-duct biliary reconstruction is a safe and easy technique for pediatric patients.

Intraoperative transhepatic biliary catheter insertion technique for biliary reconstruction: early results

Biliary complications are critical problems in liver transplantation. Herein, we retrospectively analyzed the early results of an intraoperative transhepatic biliary catheter insertion technique for biliary reconstruction. Since November 2004, we have used this technique in 66 patients (32 children and 34 adults). In the new technique, a 5- F Kumpe catheter is inserted into the biliary system in 2 steps. One step is completed at the back table; the second step is completed during the recipient operation. Fourteen patients received whole-liver grafts, 25 received a right lobe, and 27 received a left-lateral or a left lobe. The mean graft weight-to-body weight ratio in the living-donor liver transplantations was 1.6% +/- 1.0% (range, 0.8%-4.1%). Intraoperative transhepatic biliary catheter insertion was performed with a duct-to-duct anastomosis in 60 patients and with a Roux-en-Y hepaticojejunostomy in 6 patients. Five biliary complications occurred in 4 patients. Two of these 4 patients had bile leakage from the anastomotic site during the early postoperative period. Biliary stenoses developed at the anastomotic site in 2 patients and from a nonanastomotic site in 1 patient in the late postoperative period. In conclusion, this new technique of biliary reconstruction with intraoperative biliary catheter insertion has significantly reduced our complication rate. Transhepatic biliary stenting seems to prevent biliary complications and makes it simple to maintain percutaneous access in the event that problems arise. Intraoperative transhepatic biliary catheter insertion at the back table is a safe means of providing good biliary drainage after liver transplantation.

Liver transplantation: experience at our center

Liver transplantation was pioneered by Starzl and his team in 1967. Since then, many difficulties have been overcome and this treatment modality has gained worldwide acceptance as the definitive treatment for end-stage liver disease. However, the current numbers of liver transplantations are still far below what is needed, the rising numbers on waiting lists have pushed transplant surgeons to search for new alternatives, and living related donors are considered one solution. At our center, the only living liver donors we accept are relatives and spouses of recipients. We have held the same policy for our kidney program from the beginning. In the past 3 years, we have increased the annual numbers of liver transplantations; our graft and patient survival rates for this period exceed 90%. Liver grafts donated by living related donors offer an extremely important, lifesaving alternative in urgent situations, such as acute liver failure, where there is limited time to wait for a deceased donor. Hepatocellular carcinoma is another important indication for living related liver transplantation. Availability of living donors allows us to perform transplantations even in recipients with advanced tumors who would not be accepted as appropriate transplant candidates according to widely used selection criteria. Liver transplantation is a lifesaving procedure that presents many challenges, and our experience has led us to develop an innovative technique for biliary reconstruction. We have used a method of "back-table guide-wire placement and intraoperative transhepatic biliary catheter insertion" in 44 patients since December 2004 to significantly decrease biliary complications and perform duct-to-duct anastomosis even in small pediatric recipients.