Luciano De Carlis

University of Pavia, Pavia, Lombardy, Italy

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Publications (33)123.87 Total impact

  • Article: A Prospective Policy Development to Increase Split-Liver Transplantation for 2 Adult Recipients: Results of a 12-Year Multicenter Collaborative Study.
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    ABSTRACT: OBJECTIVE:: To analyze in a multicenter study the potential benefit of a new prospective policy development to increase split-liver procedures for 2 adult recipients. BACKGROUND:: Split-liver transplantation is an important means of overcoming organ shortages. Division of the donor liver for 1 adult and 1 pediatric recipient has reduced the mortality of children waiting for liver transplantation but the benefits or disadvantages to survival when the liver is divided for 2 adults (adult-to-adult split-liver transplant, AASLT) compared with recipients of a whole graft have not been fully investigated. METHODS:: We developed a computerized algorithm in selected donors for 2 adult recipients and applied it prospectively over a 12-year period among 7 collaborative centers. Patient and graft outcomes of this cohort receiving AASLT either as full right grafts or full left grafts were analyzed and retrospectively compared with a matched cohort of adults who received a conventional whole-liver transplant (WLT). Univariate and multivariate analysis was done for selected clinical variables in the AASLT group to assess the impact on the patient outcome. RESULTS:: Sixty-four patients who received the AASLT had a high postoperative complication rate (64.1% grade III and IV) and a lower 5-year survival rate than recipients of a WLT (63.3% and 83.1%) CONCLUSIONS:: AASLT should be considered a surgical option for selected smaller-sized adults only in experimental clinical studies in experienced centers.
    Annals of surgery 03/2013; · 7.90 Impact Factor
  • Article: Innovative strategies and recent advances in liver surgery.
    HPB Surgery 01/2013; 2013:517279.
  • Article: Liver Transplantation for Hepatocellular Carcinoma Recurrence After Liver Resection: Why Deny This Chance of Cure?
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    ABSTRACT: INTRODUCTION:: Liver transplantation (LT) after liver resection (LR) for hepatocellular carcinoma (HCC) recurrence may be associated with poor patient long-term results and higher perioperative patient morbidity and mortality. This study focused on short-term and long-term outcomes of LT recipients due to HCC recurrence after LR in a single-institution cohort, and in highly comparable case-matched subgroups. METHODS:: Between 2000 and 2009, 570 consecutive patients with documented HCC underwent LR (n=355, 62.2%) or LT (n=215, 37.8%) at our Institute. The case-matched analysis was between 2 groups: group A1, LT recipients who had already undergone LR (n=26); group B1, LT recipients who had not already undergone LR (n=26). RESULTS:: Patient morbidity was higher in the A1 group in terms of packed red blood cell units transfused, fresh frozen plasma units transfused, median operative time, postoperative bleeding, and postoperative reoperations. No differences were detected in terms of patient mortality, patient survival, and patient recurrence-free survival at the univariate and multivariate analysis. CONCLUSIONS:: Although LT among patients who have already undergone LR is associated with higher risk of patient morbidity, patient long-term survival and recurrence-free survival is not impaired. Therefore, there do not seem to be any valid reasons to deny the chance of LT to patients who have already undergone LR.
    Journal of clinical gastroenterology 11/2012; · 2.21 Impact Factor
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    Article: Liver transplantation for HBV-related cirrhosis in Europe: a ELTR study on evolution and outcomes.
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    ABSTRACT: BACKGROUND AND AIM: HBV-related chronic liver disease is one of the most common indications for liver transplantation (LT) in Europe. The ELTR database was used to evaluate outcomes and evolution over 20 years (01/1988 and 12/2010). MATERIAL AND METHODS: HBV transplanted patients were analysed according to indication for LT: decompensated cirrhosis (HBVdec) or hepatocellular carcinoma (HBV/HCC). These groups were compared with co-infected patients [HBV/HDV (HBDV), HBV/HCV (HBCV), HBV/HDV/HCV (HBDCV); n=16664□ and with HCV patients (n=2452) according to LT indication. RESULTS: 5912 patients were transplanted for HBV (78% HBVdec, 22% HBV/HCC), with HBV/HCC patients who increased from 15.8% in 1988-1995 to 29.6% in 2006-2010 (p<0.001). In HBVdec patients 1, 3, 5, and 10 year patient and graft survival was 83%, 78%, 75%, 68%, and 80%, 74%, 71%, 64%, respectively, significantly better than HBV/HCC (84%, 73%, 68%, 61%, and 81%, 70%, 65%, 58% respectively; p=0.001 and p=0.026). In 2006-2010 patient and graft survival significantly improved compared to 1988-1995, both for HBVdec and HBV/HCC (each p<0.001). A better patient and graft survival was seen in HBV/HCC patients with HBV-DNA(-) compared to HBV-DNA(+) at the time of LT (p<0.001). Disease recurrence, as cause of death/graft loss, significantly reduced in recent years compared to the past: currently <1% for HBVdec and 3% for HBV/HCC. CONCLUSIONS: Outcomes of LT for HBV has improved in recent years, with disease recurrence being no longer a significant cause of death/graft loss. HBV-DNA at the time of LT seems to influence survival only in HBV/HCC patients.
    Journal of Hepatology 10/2012; · 9.26 Impact Factor
  • Article: Laparoscopic versus open liver surgery: a single center analysis of post-operative in-hospital and post-discharge results.
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    ABSTRACT: PURPOSE: Laparoscopic hepatectomy (LH) is established as a safe and feasible surgical procedure for benign and malignant liver lesions showing many benefits in terms of short-term post-operative outcomes. Nevertheless, it remains unclear if these benefits extend beyond the hospital stay. The aim of this study was to compare in-hospital and post-discharge outcomes between two groups of patients who have undergone either laparoscopic or open hepatectomy (OH). METHODS: Forty-six patients who have undergone LH from September 2008 to September 2011 were compared to 46 matched-pair control patients who have undergone OH. The two groups were compared in terms of in-hospital and 6-month outcomes. Post-discharge outcomes were analyzed in terms of the number of outpatient clinic appointments (OCAs) and readmissions (RAs). Analyses were performed excluding and including conversion cases. RESULTS: The two groups resulted in homogeneous patients' and lesions' characteristics. Patients who underwent LH showed statistically lower intra-operative blood loss, less total and major morbidity and shorter hospital stay. Regarding post-discharge outcomes, significantly less patients of LH group compared to patients of OH group required more than two post-discharge OCAs (in the intention to treat analysis, 28.3 versus 63 %, respectively; P = 0.006) or RA (4.3 versus 15.2 %, respectively; P = 0.008). The benefits of LH appeared to be maximized in cirrhotic patients; those represented the large part of patients readmitted after hepatectomy regardless of the type of surgical approach (77.8 %). CONCLUSIONS: Advantages related to LH extend over the post-discharge period suggesting potential better patient's satisfaction and lower hospital cost.
    Langenbeck s Archives of Surgery 08/2012; · 1.81 Impact Factor
  • Article: Antiviral therapy and fibrosis progression in patients with mild-moderate hepatitis C recurrence after liver transplantation. A randomized controlled study.
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    ABSTRACT: We evaluated the effect of antiviral therapy on fibrosis progression in patients with histological features of mild/moderate HCV disease recurrence defined by a Grading score≥4 and Staging score up to 3 (Ishak) at 1 year after liver transplantation. Seventy-three consecutive patients with mild/moderate recurrence were randomized either to no treatment or to receive Pegilated-Interferon-alfa-2b and ribavirin for 52 weeks. Liver biopsies obtained at baseline (1 year after transplantation) and 2 years afterwards were evaluated for assessment of disease progression, defined as worsening of at least 2 staging points or progression to stage 4 or higher. As for these two major histological end points there were no statistically significant differences between the 2 groups (36.1% vs. 50%, p=0.34 and 36.1% vs. 38.9%, p=1). Fifteen treated patients (41%) achieved a sustained virological response which was associated with a reduced risk of fibrosis worsening for both endpoints when compared to viremic patients (p=0.04). Although antiviral-therapy was beneficial in preventing fibrosis progression in patients achieving a sustained virological response, the majority of the overall population of our patients with mild-moderate disease recurrence could not benefit from antiviral therapy either because they either could not be treated or did not respond to treatment (EudraCT number: 2005-005760).
    Digestive and Liver Disease 03/2012; 44(7):603-9. · 3.05 Impact Factor
  • Article: Liver retransplantation in adults: the largest multicenter italian study.
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    ABSTRACT: This study is the largest Italian survey on liver retransplantations (RET). Data report on 167 adult patients who received 2 grafts, 16 who received 3 grafts, and one who received 4 grafts over a 11 yr period.There was no statistically significant difference in graft survival after the first or the second RET (52, 40, and 29% vs 44, 36, and 18% at 1,5,and 10 yr, respectively: Log-Rank test, p = 0.30).Survivals at 1, 5, and 10 years of patients who underwent 2 (n = 151) or 3 (n = 15) RETs, were 65, 48,and 39% vs 59, 44, and 30%, respectively (p = 0.59).Multivariate analysis of survival showed that only the type of graft (whole vs reduced) was associated with a statistically significant difference (HR = 3.77, Wald test p = 0. 05); the donor age appeared to be a relevant factor as well, although the difference was not statistically significant (HR = 1.91, Wald test p = 0.08).Though late RETs have better results on long term survival relative to early RETs, no statistically significant difference can be found in early results, till three years after RET.Considering late first RETs (interval>30 days from previous transplantation) with whole grafts the difference in graft survival in RETs due to HCV recurrence (n = 17) was not significantly different from RETs due to other causes (n = 53) (65-58 and 31% vs 66-57 and 28% respectively at 1-5 and 10 years, p = 0.66).
    PLoS ONE 01/2012; 7(10):e46643. · 4.09 Impact Factor
  • Article: Beyond the Milan criteria: what risks for patients with hepatocellular carcinoma progression before liver transplantation?
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    ABSTRACT: To date the selection of the best candidates for liver transplantation (LT) owing to hepatocellular carcinoma (HCC) has been mainly based on tumor morphological characteristics (nodule diameter and number), which have resulted to be independent risk factors for short long-term survival and a high rate of tumor recurrence. The study cohort included 118 patients among the 166 with HCC transplanted at our unit from January 2000 to December 2007. Patients were classified according to response to locoregional treatments before LT: progressive Group A; complete Group B; partial Group C; stable Group D. The 3-year and 5-year overall survival rates were 65.5% and 48.9% for Group A versus 84.8% and 74.6% for Group BCD (P = 0.01). The 3-year and 5-year disease-free survival rates were 74% and 74% for Group A and 95.7% and 93% for Group BCD (P = 0.007). HCC progression was the only independent risk factor according to Cox regression P = 0.014--odds ratio 4.4 (1.35-14.3). After aggressive HCC treatment before LT, imaging progression while on the waiting list was a strong predictor of high HCC recurrence rate also in patients who met the Milan criteria. Lack of imaging progression can contribute toward the selection of good transplant candidates for HCC together with the Milan criteria.
    Journal of clinical gastroenterology 09/2011; 46(1):78-86. · 2.21 Impact Factor
  • Article: Liver Match, a prospective observational cohort study on liver transplantation in Italy: study design and current practice of donor-recipient matching.
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    ABSTRACT: The Liver Match is an observational cohort study that prospectively enrolled liver transplantations performed at 20 out of 21 Italian Transplant Centres between June 2007 and May 2009. Aim of the study is to investigate the impact of donor/recipient matching on outcomes. In this report we describe the study methodology and provide a cross-sectional description of donor and recipient characteristics and of graft allocation. Adult primary transplants performed with deceased heart-beating donors were included. Relevant information on donors and recipients, organ procurement and allocation were prospectively entered in an ad hoc database within the National Transplant Centre web-based Network. Data were blindly analysed by an independent Biostatistical Board. The study enrolled 1530 donor/recipient matches. Median donor age was 56 years. Female donors (n = 681, median 58, range 12-92 years) were older than males (n = 849, median 53, range 2-97 years, p < 0.0001). Donors older than 60 years were 42.2%, including 4.2% octogenarians. Brain death was due to non-traumatic causes in 1126 (73.6%) cases. Half of the donor population was overweight, 10.1% was obese and 7.6% diabetic. Hepatitis B core antibody (HBcAb) was present in 245 (16.0%) donors. The median Donor Risk Index (DRI) was 1.57 (>1.7 in 35.8%). The median cold ischaemia time was 7.3h (≥ 10 in 10.6%). Median age of recipients was 54 years, and 77.7% were males. Hepatocellular carcinoma (HCC) was the most frequent indication overall (44.4%), being a coindication in roughly 1/3 of cases, followed by viral cirrhosis without HCC (28.2%) and alcoholic cirrhosis without HCC (10.2%). Hepatitis C virus infection (with or without HCC) was the most frequent etiologic factor (45.9% of the whole population and 71.4% of viral-related cirrhosis), yet hepatitis B virus infection accounted for 28.6% of viral-related cirrhosis, and HBcAb positivity was found in 49.7% of recipients. The median Model for End Stage Liver Disease (MELD) at transplant was 12 in patients with HCC and 18 in those without. Multivariate analysis showed a slight but significant inverse association between DRI and MELD at transplant. The deceased donor population in Italy has a high-risk profile compared to other countries, mainly due to older donor age. Almost half of the grafts are transplanted in recipients with HCC. Higher risk donors tend to be preferentially allocated to recipients with HCC, who are usually less ill and older. No other relevant allocation strategy is currently adopted at national level.
    Digestive and Liver Disease 02/2011; 43(2):155-64. · 3.05 Impact Factor
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    Article: Life-saving super-urgent liver transplantation with replacement of retrohepatic vena cava by dacron graft.
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    ABSTRACT: We describe a modified technique of side-to-side cavo-cavostomy by Dacron interposition prosthesis during a super urgent liver transplantation. A liver graft from a deceased donor was immediately requested on a top priority basis as a consequence of massive bleeding during extended left hepatectomy for a huge hepatic haemangioma arising from the caudate lobe. Veno-venous bypass was employed during anhepatic phase but it was disconnected due to severe fibrinolysis and hypothermia. A porto-caval shunt was performed and the inferior vena cava outflow was restored by a Dacron interposition prosthesis. A liver graft from a deceased donor was available 16 hours later. Due to the shortness of the vena cava of the donor liver graft, the removal of the Dacron graft was impossible and a modified side-to-side cavo-cavostomy between the Dacron interposition graft and the vena cava of the donor liver was than performed. Liver transplantation was uneventful and the patient is doing well 25 months after the surgical procedure. Although the use of synthetic vascular prosthesis should usually be discouraged during organ transplantation, its exceptional use during liver transplantation is possible with long-term good results.
    HPB Surgery 01/2010; 2010.
  • Article: Conversion from a calcineurin inhibitor to everolimus therapy in maintenance liver transplant recipients: a prospective, randomized, multicenter trial.
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    ABSTRACT: Calcineurin inhibitors (CNIs) contribute to renal dysfunction following liver transplantation. This prospective, randomized, multicenter, 6-month study (with an additional 6 months of follow-up) evaluated whether everolimus with CNI reduction or discontinuation would improve renal function in maintenance liver transplant recipients experiencing CNI-related renal impairment. Patients started everolimus therapy with CNI reduction or discontinuation (n = 72) or continued receiving standard-exposure CNI (n = 73). At month 6, 80% of the patients who had converted to everolimus had discontinued the CNI. The mean change in creatinine clearance (CrCl) from baseline to month 6 was similar between groups (everolimus, 1.0 +/- 10.2 mL/minute; controls, 2.3 +/- 7.8 mL/minute; P = 0.46), so the primary study endpoint (8 mL/minute difference in the change in CrCl) was not achieved. Among patients who continued everolimus according to the protocol, the mean increase in CrCl was 2.1 (n = 53) and 3.8 mL/minute (n = 38) at months 6 and 12, respectively, versus 2.4 (n = 68) and 3.5 mL/minute in controls (n = 51). The high frequency of CNI dose reductions in controls (77% of the patients) and the relatively long mean time post-transplant (>3 years) likely contributed to the small difference in CrCl. Biopsy-proven acute rejection occurred in 1.4% of the patients in each group, with no graft losses. Study drug discontinuation was higher in everolimus-treated patients, and adverse events were more frequent. These data demonstrate that everolimus allows for discontinuation or a major reduction of CNI exposure in liver allograft recipients suffering CNI-related renal dysfunction without a loss of efficacy. Trials targeting earlier conversion post-transplantation are required to confirm the efficacy and safety of everolimus for improving renal function after liver transplantation.
    Liver Transplantation 10/2009; 15(10):1262-9. · 3.39 Impact Factor
  • Article: Predicting survival after liver transplantation in patients with hepatocellular carcinoma beyond the Milan criteria: a retrospective, exploratory analysis.
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    ABSTRACT: Patients undergoing liver transplantation for hepatocellular carcinoma within the Milan criteria (single tumour </=5 cm in size or </=3 tumours each </=3 cm in size, and no macrovascular invasion) have an excellent outcome. However, survival for patients with cancers that exceed these criteria remains unpredictable and access to transplantation is a balance of maximising patients' chances of cure and organ availability. The aim of this study was to explore the survival of patients with tumours that exceed the Milan criteria, to assess whether the criteria could be less restrictive, enabling more patients to qualify as transplant candidates, and to derive a prognostic model based on objective tumour characteristics, to see whether the Milan criteria could be expanded. Data on patients who underwent transplantation for hepatocellular carcinoma despite exceeding Milan criteria at different centres were recorded via a web-based survey completed by specialists from each centre. The survival of these patients was correlated retrospectively with the size of the largest tumour nodule, number of nodules, and presence or absence of microvascular invasion detected at pathology. Contoured multivariable regression Cox models produced survival estimates by means of different combinations of the covariates. The primary aim of this study was to derive a prognostic model of overall survival based on tumour characteristics, according to the main parameters used in the Tumour Node Metastasis classification. The secondary aim was the identification of a subgroup of patients with hepatocellular carcinoma exceeding the Milan criteria, who achieved a 5-year overall survival of at least 70%-ie, similar to the outcome expected for patients who meet the Milan criteria. Over a 10-month period, between June 25, 2006, and April 3, 2007, data for 1556 patients who underwent transplantation for hepatocellular carcinoma were entered on the database by 36 centres. 1112 patients had hepatocellular carcinoma exceeding Milan criteria and 444 patients had hepatocellular carcinoma shown not to exceed Milan criteria at post-transplant pathology review. In the group of patients with hepatocellular carcinomas exceeding the criteria, the median size of the largest nodule was 40 mm (range 4-200) and the median number of nodules was four (1-20). 454 of 1112 patients (41%) had microvascular invasion and, for those transplanted outside the Milan criteria, 5-year overall survival was 53.6% (95% CI 50.1-57.0), compared with 73.3% (68.2-77.7) for those that met the criteria. Hazard ratios (HR) associated with increasing values of size and number were 1.34 (1.25-1.44) and 1.51 (1.21-1.88), respectively. The effect was linear for size, whereas for number of tumours, the effect tended to plateau above three tumours. The effect of tumour size and number on survival was mediated by recurrence (b=0.08, SE=0.12, p=0.476). The presence of microvascular invasion doubled HRs in all scenarios. The 283 patients without microvascular invasion, but who fell within the Up-to-seven criteria (hepatocellular carcinomas with seven as the sum of the size of the largest tumour [in cm] and the number of tumours) achieved a 5-year overall survival of 71.2% (64.3-77.0). More patients with hepatocellular carcinoma could be candidates for transplantation if the current dual (yes/no) approach to candidacy, based on the strict Milan criteria, were replaced with a more precise estimation of survival contouring individual tumour characteristics and use of the up-to-seven criteria.
    The lancet oncology 01/2009; 10(1):35-43. · 14.47 Impact Factor
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    Article: Percutaneous Transhepatic Bile Duct Ablation with n-Butyl Cyanoacrylate in the Treatment of a Biliary Complication after Split Liver Transplantation.
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    ABSTRACT: Biliary complications continue to be a major cause of morbidity after split-liver transplantation (SLT). In this report we describe an uncommon late biliary complication. One year after SLT the patient showed an intrahepatic bile dicy dilatation with severe cholangitis episodes. The segmentary bile duct of hepatic segment VI-VII draining in the left duct was unidentified and tied at the time of the in situ split-liver procedure. We perform a permanent obliteration of the dilated intrahepatic ducts by a percutaneous embolization using an n-butyl cyanoacrylate (NABC). The management of biliary complications after SLT requires a multidisciplinary approach. The use of NBCA in obliteration of a dilated bile duct seems to be a safe procedure with good results providing a less invasive option than hepatic resection and decreasing the morbidity associated with chronic external biliary drainage. Further studies are needed to determine whether this approach is effective and safe and whether it could reduce hospital stay and cost.
    Journal of Transplantation 01/2009; 2009:824803.
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    Article: High expression of dopamine receptor subtype 2 in a large series of neuroendocrine tumors.
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    ABSTRACT: To evaluate by immumohistochemistry the presence of DR subtype 2 (D2R) in well differentiated NETs of different sites and in normal islet cells. Recent data in vitro and in vivo support that dopaminergic drugs might exert an inhibitory effect on hormone secretion and, possibly, on tumor growth in neuroendocrine tumors (NET)s. Their potential therapeutic role needs the demonstration of dopamine receptors (DR) in tumor cells. Little is known on the expression of DR in NETs. 85% of samples (100% of bronchial carcinoids and 93% of islet cell tumors) showed positivity for D2R; intensity of immunoreaction in NETs was similar or higher than in pituitary (54% and respectively 31% of cases). D2R positivity in more than 70% of tumor cells was observed in 46% of samples. Same intensity of D2R-immunoreactivity was found in pituitary and normal islet cells. No differences in D2R expression were recorded on considering tumor grading, size, proliferative activity, presence of metastases, endocrine activity and gender. A significant difference (62.5% vs 96.4%, p = 0.039) was observed in the prevalence of D2R expression between patients with more aggressive tumors and patients without recurrence/progression of disease during follow-up. 46 NET samples from 44 patients and normal endocrine pancreatic tissue were studied. D2R-staining was performed on NETs and compared with six non-secreting pituitary adenomas and related to clinical-pathological data. The present data demonstrate a high expression of D2R in NETs; this finding is of clinical relevance in view of the potential role of dopaminergic drugs in inhibiting secretion and/or cell proliferation in NETs.
    Cancer biology & therapy 01/2009; 7(12):1970-8. · 2.64 Impact Factor
  • Article: Should we still offer split-liver transplantation for two adult recipients? A retrospective study of our experience.
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    ABSTRACT: The role of split-liver transplantation (SLT) for two adult recipients is still a matter of debate, and no agreement exists on indications, surgical techniques, and results. The aim of this study was to retrospectively analyze the outcome of our series of SLT. From May 1999 to December 2006, 16 patients underwent SLT at our unit. We used 9 full right grafts (segments 5-8) and 7 full left grafts (segments 1-4). The splitting procedure was always carried out in situ with a fully perfused liver. Postoperative complications were recorded in 8 (50%) patients: 5 (55%) in full right grafts and 3 (43%) in full left grafts. No one was retransplanted. After a median follow-up of 55.82 months (range, 0.4-91.2), 5 (31%) patients died, and the 1-, 3-, and 5-year overall survival rate for patients and grafts was 69%. We considered as a control group for the global outcome 232 whole liver transplantations performed at our unit in the same period of time. Postoperative complications were recorded in 53 (23%) patients, and after a median follow-up of 57.37 months (mean, 55.11; range, 1-102.83), the 1-, 3-, and 5-year overall patient survival was 87%, 82%, and 80%, respectively. In conclusion, SLT for two adult recipients is a technically demanding procedure that requires complex logistics and surgical teams experienced in both liver resection and transplantation. Although the reported rate of survival might be adequate for such a procedure, more efforts have to be made to improve the short-term outcome, which is inadequate in our opinion. The true feasibility of SLT for two adults has to be considered as still under investigation.
    Liver Transplantation 08/2008; 14(7):999-1006. · 3.39 Impact Factor
  • Article: Recurrence of hepatocellular carcinoma after liver transplantation presenting with massive intrahepatic bleeding.
    Liver Transplantation 03/2008; 14(2):259-61. · 3.39 Impact Factor
  • Article: Cyclosporine pharmacokinetics and blood pressure responses after conversion to once-daily dosing in maintenance liver transplant patients.
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    ABSTRACT: In this six-month randomized multicenter trial, we characterized cyclosporine pharmacokinetics and blood pressure profiles in maintenance liver transplant patients converting from twice-daily to once-daily cyclosporine dosing. A total of 60 patients were randomized as follows: group A (n = 14) maintained twice-daily dosing; group B (n = 24) converted to once-daily dosing at the same total daily dose as pre-conversion; and group C (n = 22) was treated the same as group B but with a 25% reduction in dose and C2 at two to three wk post-conversion. After conversion to once-daily dosing in groups B and C, trough blood levels (C0) did not change; whereas, C2 nearly doubled. The total daily area under the concentration-time curve AUC(0-24) increased by 29%. After the dose reduction in group C, the AUC(0-24) was similar to the pre-conversion value. Hence, a 25-30% dose reduction can be considered after conversion to once-daily dosing. In the study observation period in weeks 4-15, the median (25-75 percentile) C2 was 568 (469-750) ng/mL for group A; 1055 (840-1224) ng/mL for group B; and 764 (575-959) ng/mL for group C. Conversion to once-daily dosing was associated with a decrease in nighttime mean arterial blood pressure.
    Clinical Transplantation 08/2007; 22(1):68-75. · 1.67 Impact Factor
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    Article: Liver transplantation for HCV cirrhosis: improved survival in recent years and increased severity of recurrent disease in female recipients: results of a long term retrospective study.
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    ABSTRACT: In recent years, a worsening outcome of hepatitis C virus (HCV)-positive recipients and a faster progression of recurrent disease to overt cirrhosis has been reported. Our aims were to 1) assess patient survival and development of severe recurrent disease (Ishak fibrosis score > 3) in different transplant years; and 2) model the effects of pre- and post-liver transplantation (LT) variables on the severity of recurrent disease. A multicenter retrospective analysis was conducted on 502 consecutive HCV-positive transplant recipients between January 1990 and December 2002. Protocol liver biopsies were obtained at 1, 3, 5, 7, and 10 yr post-LT in almost 90% of the patients. All 502 patients were included in the overall survival analysis, while only the 354 patients with a follow-up longer than 1 yr were considered for the analysis of predictors of disease progression. The overall Kaplan-Meier survival rates were 78.7%, 66.3%, and 58.6%, at 12, 60, and 120 months, respectively, and a trend for a better patient survival over the years emerged from all 3 centers. The cumulative probability of developing HCV-related recurrent severe fibrosis (Ishak score 4-6) in the cohort of 354 patients who survived at least 1 yr remained unchanged over the years. Multivariate analysis indicated that older donors (P = 0.0001) and female gender of recipient (P = 0.02) were the 2 major risk factors for the development of severe recurrent disease, while the adoption of antilymphocytic preparations was associated with a less aggressive course (P = 0.03). Two of these prognostic factors, donor age and recipient gender, are easily available before LT and their combination showed an important synergy, such that a female recipient not only had a much higher probability of severe recurrent disease than a male recipient but her risk increased with the increasing age of the donor, reaching almost 100% when the age of the donor was 60 or older. In conclusion, a trend for a better patient survival was observed in more recent years but the cumulative probability of developing severe recurrent disease remained unchanged. The combination of a female recipient receiving an older graft emerged as a strong risk factor for a severe recurrence.
    Liver Transplantation 06/2007; 13(5):733-40. · 3.39 Impact Factor
  • Article: De novo cancers and post-transplant lymphoproliferative disorder in adult liver transplantation.
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    ABSTRACT: De novo cancer is one of the most serious complications after organ transplantation. Chronic immunosuppression, viral agents, pretransplant chronic alcohol-induced and other addictive behavior-induced injury are important conditions associated with the development of de novo cancers in solid organ transplants. The aim of the study was to evaluate types and clinical course of de novo cancers in adult liver transplant recipients. Data regarding 502 adult patients who underwent to 554 liver transplantations have been collected. Sex, age at transplantation, immunosuppressive regimen, time from transplantation to diagnosis of cancer, cancer type, surgical and non-surgical treatments and follow-up time have been analyzed as well as acute rejection episodes and viral status. Thirty patients developed 31 de novo cancers. The predominant tumors were carcinoma of the skin, lymphomas and Kaposi's sarcoma. Kaposi's sarcoma and lung cancer were associated with greater mortality. In lymphomas and Kaposi's sarcoma, a high rate of graft involvement was observed. In liver transplant recipients, de novo cancers demand strategies focusing on prophylactic and careful long-term screening protocols. Lymphomas and Kaposi's sarcoma should be ruled out in all patients with clinical manifestations of chronic biliary obstruction.
    Pathology International 12/2006; 56(11):712-5. · 1.62 Impact Factor
  • Article: Biliary complications after living donor adult liver transplantation.
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    ABSTRACT: The highest rate of complications characterizing the adult living donor liver transplantation (ALDLT) are due to biliary problems with a reported negative incidence of 22-64%. We performed 23 ALDLT grafting segments V-VIII without the middle hepatic vein from March 2001 to September 2005. Biliary anatomy was investigated using intraoperative cholangiography alone in the first five cases and magnetic resonance cholangiography in the remaining 18 cases. In 13 cases we found a single right biliary duct (56.5%) and in 10 we found multiple biliary ducts (43.7%). We performed single biliary anastomosis in 17 cases (73.91%) and double anastomosis in the remaining six (26%) cases. With a mean follow up of 644 days (8-1598 days), patient and graft survivals are 86.95% and 78.26%, respectively. The following biliary complications were observed: biliary leak from the cutting surface: three, anastomotic leak: two, late anastomotic strictures: five, early kinking of the choledochus: one. These 11 biliary complications (47.82%) occurred in eight patients (34.78%). Three of these patients developed two consecutive and different biliary complications. Biliary complications affected our series of ALDLT with a high percentage, but none of the grafts transplanted was lost because of biliary problems. Multiple biliary reconstructions are strongly related with a high risk of complication.
    Transplant International 07/2006; 19(6):466-73. · 2.92 Impact Factor

Institutions

  • 2012
    • University of Pavia
      Pavia, Lombardy, Italy
  • 2003–2012
    • Azienda Ospedaliera Niguarda Ca' Granda
      • Department of Surgery
      Milano, Lombardy, Italy
  • 2007
    • Novartis
      Bern, BE, USA