Outcome of exfoliative rejection after isolated intestinal transplantation in an adult: case report.

A 34-year-old-man with short-bowel syndrome received an isolated small bowel graft. On postoperative day (POD) 11, ileal biopsy specimen demonstrated mild to moderate rejection that did not respond to corticosteroid bolus therapy. On POD 14, endoscopy and histologic examination revealed exfoliative rejection that was not controlled after 14 days of therapy with thymoglobulin. On POD 95, the patient underwent surgery again because of intestinal obstruction. The graft was removed 6 months after transplantation because of continuous severe abdominal pain with weight loss. After enterectomy, the patient developed multiple-organ failure and died on POD day 8. This case underlines the severity of exfoliative rejection and suggests that early enterectomy be performed when the diagnosis is made, before deterioration of clinical status and development of infectious and nutritional complications.

Esophageal varices in chronic intestinal insufficiency in absence of portal hypertension or liver cirrhosis: case report.

We report the case of a 62-year-old man with short-bowel syndrome, referred for intestinal transplantation, who had esophageal varices (EV) due to superior vena cava (SVC) thrombosis. Pretransplantation work-up revealed protein S deficiency. Results of liver function tests were normal. Upper endoscopy showed grade II to III EV in the upper and middle segments of the esophagus. Computed tomography demonstrated thrombosis of the jugular, subclavian, and SVC veins and marked collateral vessels in the chest. Transient elastography yielded normal findings. A liver biopsy specimen showed a normal aspect of the liver, without fibrosis or liver cirrhosis. Presence of EV in a patient with chronic intestinal insufficiency may be related to collateral venous circulation associated with SVC thrombosis in the absence of portal hypertension. In this situation, an isolated intestinal graft is indicated.

Hepatic insufficiency and liver transplantation in a patient with COACH syndrome.

An 8-yr-old-patient was diagnosed with COACH syndrome at the moment of her first bleeding episode from esophageal varices. Investigations revealed biliary cirrhosis as the cause of portal hypertension, no visible kidney cyst or impairment of renal function, cerebellar dysplasia with non-disabling ataxia, and minimal mental retardation. By the age of 12 yr she had developed liver insufficiency and, after a challenging discussion, underwent a liver transplantation. She subsequently developed an abdominal aspergillosis, which required several abdominal explorations and splenectomy as well as 6 months of therapy with liposomal amphotericin B, but survived and in long-term follow-up is in good health, with completed puberty, and has finished school.

N-acetylcysteine in pig liver transplantation from non-heart-beating donors.

Lipid peroxidation due to oxygen free radicals (OFR) seems to play a major role in loss of liver graft viability after warm ischemia, preservation, and transplantation. N-acetylcysteine (NAC) is an antioxidant that has a direct effect on OFR, and is also a glutathione precursor, another antioxidant. This study was designed to evaluate the efficacy of NAC in preventing ischemia-reperfusion damage of liver grafts harvested from non-heart-beating donors. Liver transplantation was performed on pigs divided into five groups: group 1 (control group; n=5) received livers from heart-beating donors; livers were subjected to 30 min of warm ischemia in groups 2 (n=3, no NAC) and group 3 (n=3; NAC treatment); warm ischemia time lasted 60 min in groups 4 (n=4; no NAC) and 5 (n=5; NAC treatment). Studied parameters included graft survival for more than 3 days, aspartate aminotransferase plasma levels, liver histology, and hepatic total glutathione concentrations. Graft survival was 100% in groups 1, 2, and 3, 0% in group 4, and 20% in group 5. NAC treatment did not influence initial mean aspartate aminotransferase release which was greater in warm ischemic livers than in controls. NAC treatment had no effect on liver hepatic total glutathione after reperfusion of animals receiving warm ischemic grants. Finally, no effect on liver histology was observed with NAC treatment. Our study suggests that in liver transplantation from non-heart-beating donors, NAC has no effect in both graft viability and lipid peroxidation. The role of OFR in primary dysfunction of transplanted warm ischemic livers remains controversial.

Spleno-caval shunt in children using internal jugular vein graft: a case report.

Several techniques for decompression of portal hypertension have been described. The spleno-caval shunt is an easy and safe technique described in adult patients. However, the procedures described in adults are not adapted to children. We report an adaptation of this technique in a child, using the internal jugular vein as an interposition graft for relief of portal hypertension.

Intrahepatic biliary-enteric bypass for complete extrahepatic biliary obstruction in children.

Intrahepatic biliary-enteric anastomosis is rarely practiced in pediatric surgery. The authors report on two children who have been successfully treated using this method. First described by Longmire and Sandford in 1948, intrahepatic biliary-enteric anastomosis is possible in children. This procedure is only indicated as a last recourse for circumstances in which the extrahepatic biliary tree is completely obstructed.

[Intrahepatic glutathione and oxidative stress in liver transplantation in the pig]. / Glutathion intra-hépatique et stress oxydatif en transplantation du foie chez le cochon.

OBJECT: To determine the loss of endogenous GSH from livers cold-stored and reperfused, using a model of liver transplantation in the pig. MATERIAL AND METHODS: Four female Yorkshire pigs weighing 19 to 40 kg received a liver allograft. Donor livers were cold-stored in the UW solution. Mean cold ischemic time was 6.5 hours. Malondialdehyde (MDA) levels were used as an index of oxidative stress. MDA plasma levels were measured following recipient laparotomy (H0), immediately (H1), and 90 minutes after liver reperfusion (H2). MDA and GSH levels in liver were measured following donor laparotomy (T0), at the end of cold ischemic period (T1), and at 90 minutes following liver reperfusion (T2). RESULTS: Three animals survived. MDA liver levels decreased of 44% between T0 and T1, then increased to 92% at T2. In contrast, in plasma, graft reperfusion was associated with an increase of MDA to 140% of the baseline values which reached 188% at H2. Intrahepatic GSH levels decreased of 49% at T1, then to 72% at T2. CONCLUSION: our study suggests that in liver transplantation: (1) Hepatic GSH is depleted to 49% during cold-storage, and an additional 23% is lost after reperfusion; (2) GSH contained in the UW solution does not prevent the loss of hepatocellular glutathione during preservation and reperfusion; (3) after short periods of cold ichemia, endogenous hepatic GSH may protect against oxydative stress in the transplanted liver.

Liver retransplantation in children.

Between January 1988 and December 1993, 132 children received 154 orthotopic liver transplantation (OLT) at Bicêtre Hospital (France). Among them, 18 children underwent two and 2 children underwent three transplants (retransplant rate; 15.2%). Retransplantations were classified into three groups according to the interval between both OLTs: 1 (< 7 days, n = 8), 2 (8 days to 6 months, n = 10) and 3 (> 6 months, n = 4). Each group was compared with a control group whose grafts survived more than 1 week. There were no significant differences regarding age (35 +/- 49, 23 +/- 13, and 33 +/- 15 versus 49 +/- 41 months), cold ischemic time (566 +/- 105, 470 +/- 144, and 476 +/- 58 versus 455 +/- 110 minutes) and reduced size graft ratio (62.5%, 60%, and 75%, versus 58.3%). The causes of graft failure included primary nonfunctioning liver (PNF, n = 8) all in group 1 cases, biliary complications associated with hepatic artery thrombosis (HAT, n = 10; group 2, 6; group 3, 4), chronic rejection (n = 3; group 2, 1; group 3, 2) and three others (uncontrollable acute rejection, fulminant hepatitis, and secondary dysfunction, all in the group 2). The authors were unable to detect the cause of PNF. The overall survival rate after retransplantation was 62.5%, 60.0% and 75%, respectively. To reduce the rate of retransplants and improve the prognosis after OLT, further investigation into the cause of PNF, refinements in the anastomotic technique of the hepatic artery, and also early treatment of HAT are some of the goals to be achieved.

Lessons from the first 100 liver transplantations in children at Bicêtre Hospital.

The authors report their experience with 100 liver transplantations at Bicêtre Hospital. From 1988 to 1991, 85 children received a total of 100 liver grafts (mean age, 44.4 months; two thirds were under 3 years of age). Fifty-four percent of the grafts were reduced-size. Cyclosporine, steroids, and azathioprine were used for immunosuppression. The actuarial survival rate at 4 years is 86%. Retransplantation was performed in 14 children (16%). Forty-four patients (49%) had another operation. Biliary complications (17%), hepatic artery thrombosis (HAT) (14%), and hemoperitoneum (14%) were the most frequent surgical complications. Retransplantation was avoided in 50% of the patients who underwent urgent artery revision for thrombotic complications. It appeared that ABO-incompatible were better tolerated in children without ABO alloantibodies at the time of transplantation. The survival rates of ABO-identical, -compatible, and -incompatible liver grafts did not differ (61%, 50%, and 57% respectively). The results suggest that an aggressive policy of reintervention, including retransplantation, is necessary to achieve a satisfactory survival rate and quality of life. Children lacking ABO alloantibodies at the time of transplantation might tolerate ABO-incompatible liver grafts better.

[Kasabach-Merritt syndrome with pancreatic hemangioma in an infant]. / Syndrome de Kasabach-Merritt avec hémangiome pancréatique chez un nourrisson.

BACKGROUND: Kasabach-Merritt syndrome is characterized by one or more large hemangiomas associated with thrombocytopenia due to platelet trapping. The hemangiomas may be located in the abdominal viscera, in which case, treatment may be difficult. CASE REPORT: A 2 1/2 month-old boy was admitted because of the discovery of an abdominal mass. He was anemic (hemoglobin: 6.8 g%; reticulocytosis: 288,000/mm3), thrombocytopenic (50,000/mm3), hypofibrinogenemic (0.95 g/l), with fibrin split products in the blood. Ultrasonography showed that this mass was retroperitoneal and heterogeneous. X-rays delineated the mass, which distorted the duodenal loop and pressed forward against the stomach. Surgery showed that the mass included the pancreas, the root of mesenterium and the extrahepatic bile duct. This mass was biopsied. Histological examination showed infantile type hemangioendothelioma. Abdominal angiography showed that the mass was not very hypervascularized, and there were no dilated supplying blood vessels. An aortogram showed two other small vascularized areas. The patient was given methylprednisolone, but the volume of the mass remained unchanged, while hepatosplenomegaly and jaundice developed and ultrasound showed dilated extra- and intrahepatic biliary ducts. The patient was then given interferon alpha 2b for 1 month. Embolization of the small supplying arteries was performed because of a lack of improvement after 1 week of treatment. This procedure was followed by rapid disappearance of the signs of consumption coagulopathy, a progressive improvement in cholestasis, and decrease in the mass. CONCLUSION: Improvement in manifestations of this Kasabach-Merritt syndrome is difficult to assign to one of the several therapies. The rapid disappearance of consumption coagulopathy after arterial embolization suggests that this treatment was successful in our patient.

[Transplantation of reduced-size livers in children]. / Transplantation des foies réduits chez l'enfant.

Nowadays, liver reduction techniques make it possible to use livers obtained from adults or adolescents for implantation in children. These techniques have been evaluated by analysis of 100 liver transplantations performed between January 1988 and October 1991 in 85 children. Forty-six full-size grafts implanted in 38 children (group 1) were compared with 54 reduced-size grafts implanted in 47 children (group 2). The overall actuarial survival at 4 years was 86 percent. There was no statistical significant difference between the two groups as regards the rates of death (8 versus 19 percent), reoperation (54 versus 64 percent), retransplantation (15 versus 16 percent), hepatic artery thrombosis (13 versus 15 percent) and graft survival (82 versus 70 percent) respectively. Haemorrhage was significantly more frequent in group 1 than in group 2 (P = 0.04), irrespective of whether transplantation was performed urgently or electively. Using reduced-size livers considerably increases the number of liver grafts available to children. Apart from a greater risk of haemorrhage, the results obtained with reduced-size livers were identical with those obtained with full-size livers.

Pediatric liver transplantation for primary hepatocellular carcinoma associated with hepatitis virus infection.

We report two cases of early primary hepatocellular carcinoma (PHC) in children, after probable maternal transmission of hepatitis B, that were treated with orthotopic liver transplantation (OLT). Both children were 8.5 years old and had elevated levels of serum alpha-feto-protein. The diagnosis of PHC was made at 8 years and confirmed histologically. Serum hepatitis B surface antigen (HBs Ag) was detected in the mothers and suggested vertical transmission. An attempt at complete liver tumor resection failed, leading to OLT. In order to prevent recurrence of the hepatitis B virus (HBV) infection, hepatitis B immunoprophylaxis was used. Two years after OLT, one child presented with recurrent HBV infection. No tumor recurrence was observed at follow-up in either of the patients. From these two cases we conclude that (1) HBV infection may play an important causal role in PHC in children, with an even shorter incubation period than that in adults; (2) close follow-up is needed for children who are HBs Ag-positive carriers; and (3) liver transplantation should be proposed early after the diagnosis of PHC, when tumor resection is not feasible.

[Surgery of liver transplantation in children]. / Chirurgie de la transplantation hépatique chez l'enfant.

From 1988 until 1992, 94 children with end-stage liver disease were put forward for orthotopic liver transplantation (OLT) by the surgical and anesthesic teams of the Bicetre Hospital. Due to a majority of adult donors, and to the young age of the recipients (mean = 3 years 3 months), a reduced-size graft was prepared in 64 out of the 111 transplants performed (58%). A number of children (42) had to be reoperated on due to complications: hepatic artery thrombosis, one of the most severe complications following pediatric OLT, occurred in 14 cases, and was an indication for seven out of the 17 retransplantations in this series. The eight deaths which occurred in the early postoperative period were the toll of this particularly challenging surgery.

[Production of oxygenated free radicals and the role of exogenous antioxidants in liver transplantation in rats]. / Production des radicaux libres oxygénés et rôle des antioxydants exogènes en transplantation du foie chez le rat.

It has been suggested that, in transplantation organs, the lesions observed after conservation then reperfusion could be related to the formation of oxygenated free radicals. The aim of our work was first to verify the hypothesis that oxygenated free radical are formed after ischaemia-reperfusion of the liver, then to evaluate the effects of the allopurinol and glutathion, known antagonists of oxygenated free radicals, contained in the University of Wisconsin conservation fluid. The University of Wisconsin solution was compared with a Collins solution which does not contain oxygenated free radical antagonists. An orthotopic liver transplantation model was used in Wistar rats. Three groups were studied. In the control group, 5 rats underwent laparotomy then were closed with no surgery being performed. In the Wisconsin group (n = 6) and the Collins group (n = 6) the livers were washed and conserved in the corresponding solution at 4 degrees C before transplanting. Plasma levels of malonyldialdehyde, measured by high performance liquid chromatography, were used as a marker for the formation of oxygenated free radicals. Impaired liver function was assessed on the basis of mortality and serum transaminases, alkaline phosphatase and total bilirubin levels. Liver biopsy was performed at sacrifice. The level of malonyldialdehyde was significantly higher in the transplanted groups compared with the control group (p < 0.01). There was no difference between the Wisconsin and the Collins groups. Hepatic function was significantly reduced in the transplanted groups compared with the control group (p < 0.05). There was no significant difference between the Wisconsin and the Collins groups.(ABSTRACT TRUNCATED AT 250 WORDS)

[Liver transplantation in children. New experience in a Pediatric Surgery unit. Evaluation of the first 18 months' experience]. / Transplantation hépatique chez l'enfant. Nouvelle activité d'un service de Chirurgie Pédiatrique. Evaluation après dix-huit mois.

The authors report an eighteen month experience with orthotopic liver transplantation (OLT) in children in the Pediatric Department of Hospital Bicêtre in Paris, from January 1988 until July 1989. Thirty-eight OLTs including 4 retransplant operations, were performed in 34 children, aged from 7 months to 13 years, 20 of them under the age of 3 years. Biliary atresia was the indication for 22 children. Twenty-eight donors were children. A reduced-size liver was used in 17 cases. The technique for OLT was based on the description by TE Starzl. Surgical complications led to reoperation in 15 cases, mostly in relation to hepatic artery thrombosis (HAT), which occurred in 7 cases: small donor liver was considered to be one of the causative factors. In all but one case of HAT a retransplant was considered; to date it is has been performed in 3 of these children. Thirty-one children have survived, with a mean follow-up of 8 months, all are at home, except for one child at the time of this report. Liver function tests are normal for 22, and moderately altered for 5. For the four remaining children, retransplant is planned for 3 cases and one child has just been retransplanted. The authors emphasise the fact that OLT in small children requires a specialised pediatric environment, particularly as regards intensive care and nursing.

Hepatic artery thrombosis in pediatric liver transplantation.

The incidence of hepatic artery thrombosis was analyzed in a series of 59 consecutive liver transplants performed in 52 children less than 15 years of age at the University of Louvain Medical School, Brussels, from March 1984 to March 1987. This incidence was 17% for the whole series; it was increased in small recipients less than 3 years of age and less than 15 kg (23%) in weight, as well as when the liver was harvested from a small donor less than 15 kg in weight (38%). It was also increased when the donor liver was supplied by more than one artery. This incidence was markedly reduced by arterial revascularization from the aorta, either directly or by interposition of an iliac segment; the reduced-size livers had a much lower incidence of arterial thrombosis (5%) than the whole livers (23%). In the present series, we did not find any argument to support the view that poorly controlled rejection could be implicated in the pathogenesis of arterial thrombosis.

Liver transplantation for biliary atresia: indications and results.

This report reviews the results of some paediatric surgical departments and points out the unsolved problems in biliary atresia disease. The authors conclude that a 5-year survival rate of 60% may be achieved in long-term follow-up, but a complete cure is observed only in 30%. Children who develop a cirrhosis and portal hypertension without or in spite of bile flow can benefit only by liver transplantation. As a result of long-term clinical experience conditions are defined that should be taken in consideration in the surgical treatment of bile duct atresia. In respect of liver transplantation the disadvantages of an external bile draining fistula to prevent cholangitis, an extensive mobilisation of the liver for HPE procedure, and the disadvantages of reoperation are discussed. By avoiding these disadvantages liver transplantation procedure will be facilitated and a 1-2 year survival rate of 80% may be achieved.

Pediatric liver transplantation: report on 52 patients with a 2-year survival of 86%.

Between March 1984 and March 1987, 59 orthotopic liver transplantations have been performed in 52 children at the Catholic University of Louvain in Brussels. The actuarial survival was 86% +/- 5 up to 3 years of evolution. The most frequent indication has been chronic hepatic insufficiency (43 patients) mainly because of biliary atresia; seven patients were transplanted for acute hepatic insufficiency and only two for liver tumor. Because of important donor/recipient weight discrepancy, a reduced-size liver was used in 20 occasions either for first or second transplant. No difference in the incidence of major complications were seen between whole liver and reduced size liver transplanted children, with the exception of more frequent subhepatic collections in the first and more hepatic artery thrombosis in the second group. Liver tests, clinical rehabilitation, and survival appear to be equal in the two groups.