Infrarenal versus supraceliac aorto-hepatic arterial revascularisation in adult liver transplantation: multicentre retrospective study.

When the standard arterial reconstruction is not feasible during liver transplantation (LT), aorto-hepatic arterial reconstruction (AHAR) can be the only solution to save the graft. AHAR can be performed on the infrarenal (IR) or supraceliac (SC) tract of the aorta, but the possible effect on outcome of selecting SC versus IR reconstruction is still unclear. One hundred and twenty consecutive patients who underwent liver transplantation with AHAR in six European centres between January 2003 and December 2018 were retrospectively analysed to ascertain whether the incidence of hepatic artery thrombosis (HAT) was influenced by the type of AHAR (IR-AHAR vs. SC-AHAR). In 56/120 (46.6%) cases, an IR anastomosis was performed, always using an interposition arterial conduit. In the other 64/120 (53.4%) cases, an SC anastomosis was performed; an arterial conduit was used in 45/64 (70.3%) cases. Incidence of early (≤ 30 days) HAT was in 6.2% (4/64) in the SC-AHAR and 10.7% (6/56) IR-AHAR group (p = 0.512) whilst incidence of late HAT was significantly lower in the SC-AHAR group (4.7% (3/64) vs 19.6% (11/56) - p = 0.024). IR-AHAR was the only independent risk factor for HAT (exp[B] = 3.915; 95% CI 1.400-10.951; p = 0.009). When AHAR is necessary at liver transplantation, the use of the supraceliac aorta significantly reduces the incidence of hepatic artery thrombosis and should therefore be recommended whenever possible.

Liver Retransplantation for Hepatic Abscess Due to Hepatic Artery Thrombosis: A Case Report.

INTRODUCTION: Hepatic artery thrombosis (HAT) is a well-recognized complication of liver transplantation (LT). HAT is an important risk factor for infectious, in particular hepatic abscess, which can cause graft loss and increasing morbidity and mortality. CASE REPORT: We present a case report of complicated LT in a 52-year-old Caucasian man with primary sclerosing cholangitis. In 2007 the patient was included on the waiting list in Padua for LT. In 2012 the patient underwent percutaneous transhepatic biliary drainage for bile duct stricture, complicated with acute pancreatitis. A diagnostic laparoscopy was performed with choledochotomy and Kehr's T tube drainage. On February 14, 2012, the patient underwent LT with arterial reconstruction and choledochojejunostomy. The postoperative course was complicated with HAT, multiple liver abscesses, and sepsis associated with bacteremia due to Enterococcus faecium despite massive intravenous antibiotic therapy and percutaneous drainages. On November 28, 2012, the patient underwent retransplantation. Four years after transplantation the patient is still in good general condition. CONCLUSION: Hepatic abscess formation secondary to HAT following LT is a major complication associated with important morbidity and mortality. In selected cases retransplantation should be considered as our case demonstrates.

Survival benefit of transplantation for recurrence of hepatocellular carcinoma after liver resection.

BACKGROUND: Liver transplantation (LT) for hepatocellular carcinoma (HCC) can be used for tumor recurrence after liver resection (LR) both for initially transplant-eligible patients as conventional salvage therapy (ST) and for non-transplant-eligible patients (beyond Milan criteria) with a goal of downstaging (DW). The aim of this study was to compare the intention-to-treat (ITT) survival rates of patients who are listed for LT, according to these two strategies. METHODS: We analyzed a prospective database of 399 consecutive patients who underwent hepatic resection for HCC from 2002 to 2011 to identify patients included in the waiting list for tumor recurrence. Intention-to-treat (ITT) survivals were compared with those of patients resected for HCC within and beyond Milan criteria in the same period and not included in the LT waiting list. RESULTS: The study group consisted of 42 patients, 28 in the ST group (within Milan) and 14 in the DW group (beyond Milan). The 5-year ITT survival rate was similar between the 2 groups, being 64% for ST and 60% for DW (P=.84). Twenty-five patients (15 ST and 10 DW) underwent LT, 13 (10 ST and 3 DW) were still awaiting LT, 4 (3 ST and 1 DW) dropped out of the waiting list because of tumor progression, and 7 (5 ST [33%] and 2 DW [20%]) had tumor recurrence. The 5-year ITT survival of ST patients was similar to that of 252 in-Milan HCC patients resected only (P=.3), whereas 5-year ITT survival of DW patients was significantly higher (P<.01) than that of 105 beyond-Milan HCC patients resected only. CONCLUSIONS: LR seems to be a safe and effective therapy both as alternative to transplantation and as downstaging strategy for intermediate-advanced HCC. The survival benefit of salvage LT, however, seems to be higher in the 2nd than in the 1st group.

SERPINB3 is associated with TGF-ß1 and cytoplasmic ß-catenin expression in hepatocellular carcinomas with poor prognosis.

BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most important sanitary problems for its prevalence and poor prognosis. To date, no information is available on the prognostic value of the ov-serpin SERPINB3, detected in primary liver cancer but not in normal liver. The aim of the study was to analyse SERPINB3 expression in liver cancer in relation with molecular signatures of poor prognosis and with clinical outcome. METHODS: Liver tumours of 97 patients were analysed in parallel for SERPINB3, TGF-ß and ß-catenin. In a subgroup of 67 patients with adequate clinical follow-up, the correlation of molecular findings with clinical outcome was also carried out. RESULTS: High SERPINB3 levels were detectable in 22% of the patients. A significant correlation of this serpin with TGF-ß at transcription and protein level was observed, whereas for ß-catenin a strong correlation was found only at post-transcription level. These findings were in agreement with transcriptome data meta-analysis, showing accumulation of SERPINB3 in the poor-prognosis subclass (S1). High levels of this serpin were significantly associated with early tumour recurrence and high SERPINB3 was the only variable significantly associated with time to recurrence at multivariate analysis. CONCLUSIONS: SERPINB3 is overexpressed in the subset of the most aggressive HCCs.

Use of grafts from anti-HBc-positive donors in liver transplantation: a 5-year, single-center experience.

INTRODUCTION: Liver transplantation (OLT) is the treatment of choice for advanced hepatic disease. The growing gap between waiting list patients and the number of donations has led to acceptance of less than optimal donors. The aim of this study was to evaluate the 5-year experience with anti hepatitis B core antigen (HBc)-positive liver donors. PATIENTS AND METHODS: All recipients of anti-HBc-positive grafts from January 2005 to December 2010 were evaluated annually after OLT for liver disease etiology, Model for End-Stage Liver Disease (MELD) score, and the presence of hepatocellular carcinoma (HCC) liver biopsy histology and serology for hepatitis B virus (HBsAg, anti-HBs, HBV-DNA), hepatitis C virus, and hepatitis D virus as well as antiviral prophylaxis to prevent de novo HBV. RESULTS: Among the 249 OLT performed from January 2005 to December 2010, (9.3%) cases used grafts from anti-HBc-positive donors. Etiologics of liver disease among the recipients were HBV (n = 13; 32.5%), HCV (n = 13; 32.5%) or other causes (n = 14; 35%). In 20 of the 40 patients (50%), HCC was found in the explanted organ. Of 40 recipients of anti-HBc-positive grafts 11 died, and 7 (17.5%) required retransplantation. Various regimens were employed as post-transplantation antiviral prophylaxis: (l) Immune globulin (25.8%); (2) Oral antiviral drugs (9.7%); and (3) combined prophylaxis (51.6%) or no treatment (12.9%). No difference was observed in patient or graft survival in relation to the etiology of liver disease, the MELD score, or the presence of HCC at the time of OLT, except graft survival was significantly reduced among recipient who underwent transplantation for non-HBV or non-HCV liver diseases compared with those engrafted due to viral hepatitis (P = .0062). No difference was observed in histologic features (grading and staging) compared with the antiviral prophylactic therapy; the 2 patients (5%) who developed de novo HBV had not received prophylaxis after OLT. CONCLUSIONS: Matching anti-HBc-positive grafts to recipients without HBV infection before OLT, may be especially safe.

Liver autotransplantation for the treatment of unresectable hepatic metastasis: an uncommon indication-a case report.

Ex situ ex vivo liver surgery represents a method to expand the surgical indications to treat otherwise unresectable liver tumors. We report the case of a 38-year old woman with hepatic metastasis from a pancreatoblastoma that was judged to be unresectable due to the involvement of the three hepatic veins. To treat the primary tumor, she underwent a pancreaticoduodenectomy, adjuvant chemotherapy, and thermal ablation of a liver metastasis. After appropriate preoperative study and with the permission of the ethics committee, she underwent ex situ ex vivo liver resection. The hepatectomy was performed by removing the whole liver en bloc with the retrohepatic vena cava. The inferior vena cava was reconstructed by interposition of a prosthetic graft. The ex situ ex vivo hepatic resection, a left hepatic lobectomy included the lesion in segments 1-5-7-8. The two hepatic veins were reconstructed using patches of saphenous vein. The organ was preserved continuously for 6 hours using hypothermic perfusion with 4°C Celsior solution. The liver was then reimplanted performing an anastomosis between the reconstructed hepatic veins and the caval prostheses. The patient was discharged at postoperative day 22 and is currently disease-free at 8 months after surgery and 44 months after the initial diagnosis. Ex situ, ex vivo liver surgery offers an additional option for patients with both primary and secondary liver tumors considered to be unresectable using traditional surgical approaches.

Sorafenib for the treatment of recurrent hepatocellular carcinoma after liver transplantation?

BACKGROUND: There are scarce data on the use of sorafenib for the treatment of recurrent hepatocellular carcinoma (HCC) after orthotopic liver transplantation (OLT). PATIENTS AND METHODS: Ten patients were treated with sorafenib after OLT following the Italian Drug Agency guidelines: they had well-compensated liver function (Child-Pugh class A in the case of cirrhosis), intermediate-or advanced-stage HCC, good general condition (performance status 0), and not suitable for loco-regional therapies. Patients with HCC recurrence after OLT were treated with sorafenib (400 mg twice daily). Adverse events (AEs) were assessed using National Cancer Institute Common Toxicity Criteria of Adverse Events (NCI-CTCAE) v3.0 with tumor responses evaluated acording to modified Response Evaluation Criteria in Select Tumors) criteria. RESULTS: Median duration of treatment was 10 months (range, 2-18). Seven patients (70%) received an additionally targeted therapy with mTOR inhibitors as part of their immunosuppressive regimen. Most common grade 3 AEs included diarrhea (50%), hand-foot skin reaction (30%), and fatigue (20%). Sorafenib had to be discontinued in 3 patients (30%) due to AEs and 4 additional patients (40%) required a dose adjustment. No deterioration of liver graft function occurred. Three patients (30%) stopped treatment due to radiological progression of HCC, whereas 3 are still using the drug. Median time to progression was 8 months (range, 2-16). Median survival from start of therapy was 18 months (range, 4- 36). CONCLUSION: Our preliminary results suggest that sorafenib is a safe effective therapy for recurrent HCC after OLT.

Liver transplantation for massive hepatomegaly due to polycystic liver disease: an extreme case.

BACKGROUND: Polycystic liver disease (PLD) is due to a genetic disorder and frequently coexists with polycystic kidney disease (PKD). If the cysts produce symptomatology owing to their number and size, many palliative treatments are available. When none of the liver parenchyma is spared, or kidney insufficiency is marked, the only potentially curable treatment is liver transplantation (LT). CASE REPORT: A 49-year old woman, diagnosed with PLD and PKD, was listed in January 2008 for combined LT and kidney transplantation (KT). A compatible organ became available 8 months later. Despite preserved liver function, the patient's clinical condition was poor; she experienced dyspnea, advanced anorexia, abdominal pain, and severe ascites. At LT, which took 9 hours and was performed using the classic technique, the liver was hard, massive in size (15.5 kg), and not dissociable from the vena cava. The postoperative course was complicated by many septic episodes, the last one being fatal for the patient at 4 months after transplantation. DISCUSSION: LT for PLD in many series shows a high mortality rate. The Model for End-Stage Liver Disease (MELD) score does not stage patients properly, because liver function is usually preserved. The liver can achieve a massive size causing many symptoms, especially malnutrition and ascites; in this setting LT is the only possible treatment. Patients with a low MELD score undergo LT with severe malnutrition that predisposes them to greater susceptibility to sepsis. To identify predictor factors, beyond MELD criteria that relate to the increased liver volume before development of late symptoms is essential to expeditiously treat patients with the poorest prognosis to improve their outcomes.

Donor-Model for End-Stage Liver Disease and donor-recipient matching in liver transplantation.

BACKGROUND: The product between donor (D) age and recipient (R) Model for End-Stage Liver Disease (MELD) score at the moment of liver transplantation (LT) has been proposed as a potential D-R matching tool to reduce the risk of "futile" LT from using the MELD score as the main allocation tool. The aim of this study was to evaluate the prognostic ability of D-MELD among a cohort of Italian patients already selected for LT on the basis of a D-R matching philosophy. METHODS: We studied 303 consecutive adult patients undergoing first LT for chronic liver diseases with available D-MELD at the moment of LT from 2003 to 2009. Optimal donors were assigned to more severe cirrhotic patients (MELD ≥20); suboptimal organs were allocated to patients with hepatocellular carcinoma (HCC) not responsive to bridging therapies (specific priority score) or other exceptions with MELD <20. A suboptimal donor had age >70 years, severe steatosis by ultrasound, and/or body mass index >30 kg/m(2), partial liver, or hepatitis C (HCV) or B virus positivity. RESULTS: Characteristics of the study group were a median age of 55 years (range, 27-68 years), HCV positivity in 164 patients (54%), HCC in 134 patients (44%), partial liver use in 25 (8%), MELD 15 (range, 6-40), D-age of 56 years (range, 18-87 years), and median D-MELD score 826 (range, 126-2,988). Overall graft survival was 84%, 79%, and 77% at 1, 3, and 5 years after LT, respectively. Logistic regression did not show a significant correlation between graft failure and D-MELD score in the absence of a significant D-MELD cutoff. Cox regression with D-MELD as the continuous variable showed a hazard ratio (HR) of 0.99 (95% confidence interval [CI], 0.99-1.00; P=NS); and with D-MELD as a dichotomic variable (≥0 to <1,600) an HR of 0.98 (95% CI, 0.63-1.77; P=NS). CONCLUSION: The prognostic ability of D-MELD fails in OLT centers that use a more complex D-R matching policy.

A new liver autotransplantation technique using subnormothermic machine perfusion for organ preservation in a porcine model.

BACKGROUND: Hepatic resection is the gold standard of therapy for primary and secondary liver tumors, but few patients are eligible for this procedure because of the extent of their neoplasms. Improvements in surgical experience of liver transplantation (OLT), hepatic resection and preservation with sub-normothermic machine perfusion (MP) have prompted the development of a new model of large animal autotransplantation. METHODS: Landrace pigs were used in this experiment. After intubation, hepatectomy was performed according to the classic technique. The intrahepatic caval vein was replaced with a homologous tract of porcine thoracic aorta. The liver was perfused with hypothermic Celsior solution followed by MP at 20 °C with oxygenated Krebs solution. An hepatectomy was performed during the period of preservation, which lasted 120 minutes, then the liver was reimplanted into the same animal in a 90° counterclockwise rotated position. The anastomoses were performed in the classic sequence. Samples of intravascular fluid, blood and liver biopsies were obtained at the end of the period of preservation in MP and again at 1 and 3 hours after liver reperfusion to evaluate graft function and microscopic damage. RESULTS: All animals survived the procedure. The peak of aspartate aminotransferase was recorded 60 minutes after reperfusion and the peak of alanine aminotransferase and lactate dehydrogenase after 180 minutes. Histopathologic examination under the light microscope identified no necrosis or congestion. Intraoperative echo-color Doppler documented good patency of the anastomosis and normal venous drainage. CONCLUSION: This system made it possible to perform hepatic resections and vascular reconstructions ex situ while preserving the organ with mechanical perfusion (ex vivo, ex situ surgery). Improving surgical techniques regarding autotransplantation and our understanding of ischemia-reperfusion damage may enable the development of interesting scenarios for aggressive surgical treatment or radiochemotherapy options to treat primary and secondary liver tumors unsuitable for conventional in situ surgery.

Microwave thermal ablation for hepatocarcinoma: six liver transplantation cases.

Surgical resection for malignant hepatic tumors, especially hepatocarcinoma (HCC), has been demonstrated to increase overall survival; however, the majority of patients are not suitable for resection. Radiofrequency ablation (RFA) is the most widely used modality for radical treatment of small HCC (<3 cm). It improves 5-year survival compared with standard chemotherapy and chemical ablation, allowing down-staging of unresectable hepatic masses. Microwave ablation (MWA) has been extensively applied in Asia and was recently introduced in the United States of America and Europe with excellent results, especially with regard to large unresectable HCC. Our single-center experience between May 2009 and October 2010 included application of MWA to 154 patients of median age ± standard deviation of 63.5 ± 8.5 years, 6 males, and 1 female, of mean Model for End-Stage Liver Disease (MELD) score (10.1 ± 3.8). The HCC included, hepatitis C virus (HCV)-related (n=70; 45.5%); alcool (ETOH)-related (n=42; 27%), hepatitis B virus (HBV)-related (n=16; 10.5%); and cryptogenic cases (n=26; 17%). The cases were performed for radical treatment down-staging for multifocal pathology or bridging liver transplantation to orthotopic (OLT) in selected patients with single nodules. A computed tomography (CT) scan was performed at 1 month after the surgical procedure to evalue responses to treatment. Among 6 selected patients who underwent OLT; 5 (83.3%) showed disease-free survival at one-year follow-up. The radical treatment achieved no intraoperative evidence of tumor spread or of pathological signs of active HCC among the explanted liver specimens. In conclusion, a MWA seemed to be a safe novel approach to treat HCC and could serve as a "bridge" to OLT and down-staging for patients with HCC.

Risk factors in liver retransplantation: a single-center experience.

Liver retransplantation (Re-OLT) is one of the most debated issues in medicine over the past decade. Re-OLT, currently is accepted for patients with irreversible failure of a hepatic graft caused by primary nonfunction (PNF), hyperacute/chronic rejection, or hepatic artery thrombosis (HAT); whereas it is still controversial for patients with recurrent viral disease, in particular hepatitis C virus (HCV) cirrhosis. Patient and graft survival rates are lower than those observed after primary liver transplantation (OLT). The aim of the present study was to analyze the risk factors that adversely affect survival after Re-OLT in a single center. Medical data were collected for 23 patients who underwent Re-OLT from November 2002 to December 2008 including six men and seven women of mean age of 51.3 years. The most frequent indications for Re-OLT were: PNF (69.5%; 16/23), HCV recurrence (8.6%; 2/23), or HAT (8.6%; 2/23). Mean Model for End-Stage Liver Disease (MELD) at Re-OLT was 27.7 (range = 9-40). After a mean follow-up of 37.4 ± 30 (standard deviation) months, 43% (10/23) of patients had died, including 70% within the first 2 months after Re-OLT. Sepsis represented the commonest cause of death (40%). Re-OLT was performed for PNF among 90% of succumbing patients. As regards dead patients, 4/10 were HCV(+) whose causes of death were sepsis (n=2), alcoholic cirrhosis (n=2), and undetermined (n=1). Comparing patients who died after liver Re-OLT versus alive patients, we did not find any significant difference in terms of mean MELD (28.6 vs 27; P=NS), MELD > 25 (60% vs 61.5%, P=NS), donor age > 60 years (30% vs 15.3%, P=NS), HCV(+) (40% vs 62%, P = NS), or time interval from OLT to Re-OLT (12.2 vs 777.7 days, P=NS). Patient survivals after Re-OLT were 67% at 3 years and 50% at 5 years, which were lower than those of first transplantations, as reported by other European and International Centers. Forty percent of deaths after Re-OLT occurred among HCV(+) recipients, but for reasons unrelated to HCV infection.

Neoadjuvant therapy protocol and liver transplantation in combination with pancreatoduodenectomy for the treatment of hilar cholangiocarcinoma occurring in a case of primary sclerosing cholangitis: case report with a more than 8-year disease-free survival.

Cholangiocarcinoma has historically represented a major contraindication to liver transplantation at many centers because of its high recurrence rate and low disease-free survival rate, even after radical surgery. Novel neoadjuvant therapy protocols combined with demolitive surgery and liver transplantation seem to achieve successful results in terms of overall and disease-free survivals. Surgery frequently seems to be unsatisfactory only for patients also suffering from chronic cirrhosis or end-stage liver disease. We have reported a case of hilar cholangiocarcinoma occurring in a case of primary sclerosing cholangitis treated with neoadjuvant radiochemotherapy and endoscopic brachytherapy, followed by liver transplantation combined with pancreatoduodenectomy, who has survived free of disease for >8 years.

Estimation of the harm to the waiting list as a crucial factor in the selection of patients with hepatocellular carcinoma for liver transplantation.

BACKGROUND: Long-term survival rates after orthotopic liver transplantation (OLT) for patients with hepatocellular carcinoma (HCC) of any size and number may now be predicted using the Metroticket calculator. The aim of this study was to evaluate the minimum post-OLT survival threshold that would justify the selection of a patient with HCC for OLT. METHODS: We used a Markov model, recently developed at the University of Michigan, which assumes that a patient with HCC should undergo OLT if his or her transplant benefit is greater than the cumulative harm to the rest of the waiting list (WL). In the base case, we considered a patient with a low survival perspective without OLT (5-year survival rate, 10%). The data sources to construct and validate the model were as follows: the Organ Procurement and Transplantation Network report, and our prospective database. RESULTS: Our center was generally characterized by lower WL mortalities, although there were lower transplant probabilities for both HCC and non-HCC patients than the average US center. The proportion of HCC patients on the WL was higher in Padua (25%) than in the United States (10%). The calculated harm to the WL was 434 quality-adjusted days of life in Padua, and 957 in the United States (P < .01). The OLT benefit outweighed the harm to the WL when the 5-year post-OLT survival rate was higher than 30% in Padua, and 61% in the United States. CONCLUSIONS: In a decision model including the concepts of transplantation benefit and harm to the WL, the minimum 5-year post-OLT survival threshold justifying the selection of a patient with HCC for OLT in Padua was 30%.

Central nervous system infectious complications early after liver transplantation.

Infectious complications contribute to significant patient morbidity and mortality in orthotopic liver transplant (OLT) recipients. Early central nervous system (CNS) involvement (within the first month after OLT) by infectious disease is essentially set off by aggressive surgical procedures, severe morbid conditions of the pretransplant period, initial graft dysfunction, permanence of intravascular catheters, and prolonged mechanical ventilation. The type and severity of CNS infection may be determined by many factors, such as posttransplant adverse events; prolonged or repeated surgery with massive intraoperative transfusions, net state of immunosuppression, recurrence of infections by immunomodulating viruses, and retransplantation. Bacteria, viruses, and fungi can spread to the CNS just as they affect the abdomen, blood stream, respiratory tract, urine, drainages, etc. Because immunosuppressive drugs may modify the clinical presentation of CNS infections, it is very important to maintain vigilance and attend to minor neurologic symptoms. Special attention should therefore be given to cerebral investigation in patients with prolonged pulmonary contamination, unresponsive fever, and heavy corticosteroid therapy, primarily when they became disoriented, develop seizures, or exhibit focal neurologic signs. Clinical response to medical therapy may sometimes be poor because of chronic encapsulation of the pathogen, development of resistance, and/or catastrophic hemorrhagic complications.

Liver resection associated with mini porto-caval shunt as salvage treatment in patients with progression of hepatocellular carcinoma before liver transplantation: a case report.

Tumor progression before orthotopic liver transplantation (OLT) is the main cause of dropouts from waiting lists among patients with hepatocellular carcinoma (HCC). Performing a porto-caval shunt (PCS) before parenchymal liver transection has the potential to allow an extended hepatectomy in patients with decompensated liver cirrhosis, reducing portal hyperflow and therefore the sinusoidal shear-stress on the remnant liver. We report the case of a 59-year-old man affected by hepatitis C virus (HCV)-related decompensated liver cirrhosis (Child Pugh score presentation, C-10; Model for End Stage Liver Disease score, 18) and HCC (2 lesions of 2 and 2.8 cm). The patient began the evaluation to join the OLT waiting list, but, in the 3 months required to complete the evaluation, he developed tumor progression: 3 HCC lesions, the largest 1 with a diameter of about 4.4 cm. These findings excluded transplantation criteria and the patient was referred to our center. After appropriate preoperative studies, the patient underwent a major liver resection (trisegmentectomy) after side-to-side PCS by interposition of an iliac vein graft from a cadaveric donor. The patient overcame the worsened severity of cirrhosis. After 6 months of follow-up, he developed 2 other HCC nodules. He was then included on the waiting list at our center, undergoing OLT from a cadaveric donor at 8 months after salvage treatment. At 36 months after OLT, he is alive and free from HCC recurrence. Associating a partial side-to-side PCS with hepatic resection may represent a potential salvage therapy for patients with decompensated cirrhosis and HCC progression beyond listing criteria for OLT.

Comparison of de novo tumours after liver transplantation with incidence rates from Italian cancer registries.

AIM: The purpose of this study is to describe de novo post-liver transplant malignancies and compare their frequency with incidence rates from Italian cancer registries. PATIENTS AND METHODS: Four hundred and seventeen patients subjected to liver transplantation, from 1991 to 2005, surviving for at least 30 days and without a previous diagnosis of cancer (including hepatocellular carcinoma), were evaluated for the development of de novo malignancies excluding non-melanoma skin cancers. RESULTS: During a total follow-up time of 2856 person-years, 43 de novo malignancies were diagnosed in 43 liver transplantation recipients (10.3%). The most common cancers were non-Hodgkin lymphoma (9 cases), cancer of the head and neck (8 cases), Kaposi's sarcoma (6 cases) and esophageal carcinoma (5 cases). The 1, 3, 5 and 10 years estimated survival rates were 69%, 57%, 53% and 42%. Patients with de novo cancers had a lower 10-year survival rate than patients without cancers (58% versus 76%, p=0.005). The risk of cancer after liver transplantation was nearly 3-fold higher than that of the general population of the same age and sex (95% CI: 1.9-3.6). De novo tumour sites or types with significantly elevated SIR included Kaposi's sarcoma (SIR=144), non-Hodgkin lymphoma (SIR=13.8), esophagus (SIR=23.4), head and neck cancers (SIR=7) and cervix uteri (SIR=30.7). CONCLUSIONS: Tumours after liver transplantation are associated with lower long-term survival, confirming that cancer is a major cause of late mortality in liver transplantation.

Prospective validation of a new priority allocation model for liver transplant candidates: an interim analysis.

BACKGROUND: The system that controls the waiting list (WL) and organ allocation for liver transplantation (OLT) seeks to achieve 3 main goals: objectivity, low dropout risks and good post-OLT results. We sought to prospectively validate a priority allocation model that is believed to achieve objectivity without penalizing dropout risk and post-OLT results. METHODS: We evaluated a study group of 272 patients enrolled in 2006-2007. WL candidates were divided into 2 categories: cirrhotic patients classified according to Model for End-Stage Liver Disease (MELD) score (MELD list and patients with hepatocellular carcinoma (HCC) organized according to a specific score (non-MELD list). The allocation algorithm for donor-recipient match assigned an optimal graft to the first MELD candidate with a MELD score of >or=20; a suboptimal graft, to the first non-MELD patient. A respective control group of 327 patients transplanted from 2003-2006 was characterized by a unique WL with a free allocation policy. We performed an interim analysis of this prospectively controlled study. RESULTS: Although the study group showed a lower percentage of OLT (P < .05) than the control group (37% vs 45%), it selected patients for OLT based on a higher MELD score (P < .05), thus obtaining similar dropout, post-OLT survivals, and intention-to-treat (ITT) survival probabilities as the controls. Among MELD patients, we observed a significantly reduced dropout and better ITT survival profiles than those of the control group (P = .02), whereas the similar results were delivered among non-MELD patients (P > .05). Among patients with a MELD score of >or=20, the prevalences of suboptimal grafts (0% vs 48%) and of early graft losses (0% vs 21%) were lower in the study than in the control group (P < .05). CONCLUSIONS: We prospectively validated a priority allocation model based on objective criteria that achieved high ITT survival rates.