RÉSUMÉ
Among a cohort of 414 liver transplantations (OLT) performed form 1996 to 2009, we analyzed 86 patients (20.7%) who were affected by hepatocellular carcinoma (HCC) superimposed on cirrhosis, including 82 with a preoperative diagnosis of tumor; 4 cases had the diagnosis established upon histologic examination after hepatectomy. The gender of 75 patients was male (91.5%), and female in 7 cases (8.5%). The median Model for End-Stage Liver Disease score was 10 (range, 6-23). The underlying liver disease was hepatitis C virus (HCV)-related cirrhosis (41.46%), hepatitis B virus (HBV)-related cirrhosis (15.6%), or alcohol-related cirrhosis (29.3%); cryptogenic; HCV+HIV; HBV+HIV; or HCV+HBV+HIV cirrhosis were present in an other few patients. The diagnosis of HCC and the preoperative staging were defined through radiologic evaluations, without biopsy confirmation in any case. All patients underwent pretransplant radiologic treatments to reduce the drop-out risk while a waiting OLT; OLT was performed for HCC patients within the Milan criteria. Upon histologic examination, the median HCC necrosis was 57 ± 36%; in 22 cases (26.8%), there were no necrotizing effects. Forty patients (48.8%) display a satisfying degree of disease control with 26 patients (31.7%) downstaged effect; 15 patients (18.3%) showed neoplastic progression with advanced neoplastic disease exceeding the Milan criteria at hepatectomy. One patient had nonevaluable necrosis (1.2%). Our experience showed preoperative radiologic treatments to be not curative but serving as a bridge to OLT.
Sujet(s)
Techniques d'ablation , Carcinome hépatocellulaire/chirurgie , Chimioembolisation thérapeutique , Hépatectomie , Tumeurs du foie/chirurgie , Transplantation hépatique , Techniques d'ablation/effets indésirables , Techniques d'ablation/mortalité , Carcinome hépatocellulaire/mortalité , Carcinome hépatocellulaire/anatomopathologie , Ablation par cathéter , Chimioembolisation thérapeutique/effets indésirables , Chimioembolisation thérapeutique/mortalité , Cryochirurgie , Éthanol/administration et posologie , Femelle , Hépatectomie/effets indésirables , Hépatectomie/mortalité , Humains , Italie , Coagulation par laser , Tumeurs du foie/mortalité , Tumeurs du foie/anatomopathologie , Transplantation hépatique/effets indésirables , Transplantation hépatique/mortalité , Mâle , Adulte d'âge moyen , Nécrose , Stadification tumorale , Études rétrospectives , Facteurs temps , Résultat thérapeutique , Listes d'attenteRÉSUMÉ
Human immunodeficiency virus (HIV) positivity is no longer a contraindication for orthotopic liver transplantation (OLT) due to the efficacy of antiretroviral therapy. The aim of this study was to compare OLT among HIV-positive and HIV-negative cohorts; the results were also stratified for hepatitis C virus (HCV) coinfection. Between 2004 and 2009, all HIV-infected patients undergoing OLT from heart-beating deceased donors (n=27) were compared with an HIV-negative cohort (n = 27). The pure HCV infection rate was similar between HIV-positive and HIV-negative subjects (63% each). HIV-positive recipients were younger (P=.013). The CD4 count for HIV-positive subjects was 376 ± 156 at transplantation. The mean model for end-stage liver disease (MELD) score at transplantation was 15 ± 7 in both groups (P=.92). No differences were observed for donor age (P=.72) or time on the waiting list (P=.56). The median follow-up was 26 (range, 1-64) and 27 months (range, 1-48) for HIV and non-HIV recipients, respectively (P=.85). The estimated 1-, 3-, and 5-year patient and graft survival rates were 88%, 83%, and 83% versus 100%, 73%, and 73% (P=.95), and 92%, 87%, and 87% versus 95%, 88%, and 88% (P=.59) for HIV and non-HIV cases, respectively. HIV/HCV-coinfected patients were younger, namely 47 (range, 40-53) versus 52 years (range, 37-68; P=.003), and displayed lower MELD scores at transplantation compared with HCV-mono-infected patients 10 (range, 7-19) versus 17 (range, 8-30) (P=.008). For HIV/HCV-coinfected and HCV-mono-infected cases the estimated 1-, 3-, and 5-year patients and graft survival rates were respectively 93%, 76%, and 76% versus 100%, 70%, and 60% (P=.99) and 93%, 84%, and 84% versus 100%, 70%, and 60% (P=.64), respectively. No difference was observed in the histological severity of HCV recurrence. In conclusion, under specific, well-determined conditions, OLT can be a safe, efficacious procedure in HIV patients.
Sujet(s)
Maladie du foie en phase terminale/chirurgie , Infections à VIH/complications , Transplantation hépatique , Adulte , Sujet âgé , Thérapie antirétrovirale hautement active , Études cas-témoins , Loi du khi-deux , Maladie du foie en phase terminale/diagnostic , Maladie du foie en phase terminale/étiologie , Maladie du foie en phase terminale/mortalité , Femelle , Survie du greffon , Infections à VIH/diagnostic , Infections à VIH/traitement médicamenteux , Infections à VIH/mortalité , Hépatite C/complications , Humains , Italie , Estimation de Kaplan-Meier , Transplantation hépatique/effets indésirables , Transplantation hépatique/mortalité , Mâle , Adulte d'âge moyen , Sélection de patients , Études rétrospectives , Appréciation des risques , Facteurs de risque , Indice de gravité de la maladie , Taux de survie , Facteurs temps , Résultat thérapeutiqueRÉSUMÉ
Type 1a glycogen storage disease (GSD 1a), or von Gierke disease, is a rare, autosomal-recessive disease caused by a deficiency of glucose-6-phosphatase, which leads to glycogen accumulation in the liver, kidney, and intestinal mucosa. Clinical manifestations include hypoglycemia, growth retardation, hepatomegaly, lactic acidemia, hyperlipidemia, and hyperuricemia. Long-term complications include renal disease, gout, osteoporosis, pulmonary hypertension, short stature, and hepatocellular adenomas, which may undergo malignant transformation. Herein we have described the management and the clinical course of a GSD1a patient who underwent simultaneous preemptive liver- kidney transplantation (SPLKT), which solved the liver and renal disease. We confirmed the rapid normalization of glucose metabolism, and correction of hyperlipemia after liver transplantation. In our opinion uremic patients with GSD 1a with or without adenomas must be considered for SPLKT. To our knowledge this is the fifth case of SPLKT and the first preemptive one to be described in the literature.
Sujet(s)
Adénome hépatocellulaire/chirurgie , Glomérulonéphrite segmentaire et focale/chirurgie , Glycogénose de type I/chirurgie , Transplantation rénale , Tumeurs du foie/chirurgie , Transplantation hépatique , Adénome hépatocellulaire/étiologie , Adulte , Évolution de la maladie , Femelle , Glomérulonéphrite segmentaire et focale/étiologie , Glycogénose de type I/complications , Humains , Tumeurs du foie/étiologie , Résultat thérapeutiqueRÉSUMÉ
Cardiovascular and metabolic diseases represent important long-term complications after liver transplantation (LT), impairing long-term and disease-free survivals. A few mechanisms underlie the development of those complications, but the role of immunosuppressive drugs is major. Although several patients develop temporary metabolic diseases, which normalize after a short postoperative period and do not need long-term drug therapy, the incidences of de novo long-lasting arterial hypertension, hyperlipidemia, and diabetes mellitus are high during the first year after LT. The aim of this retrospective study was to evaluate new-onset arterial hypertension, hyperlipidemia, or diabetes among 100 LT patients at a single institution. We used chi-square statistical analysis to compare incidences during tacrolimus versus cyclosporine therapy. Hypertension did not seem to be more strongly related to tacrolimus than to cyclosporine, nor did diabetes, whereas there was a difference for the development of hyperlipidemia.
Sujet(s)
Maladies cardiovasculaires/épidémiologie , Immunosuppresseurs/usage thérapeutique , Transplantation hépatique/immunologie , Antihypertenseurs/usage thérapeutique , Diabète/induit chimiquement , Diabète/traitement médicamenteux , Diabète/épidémiologie , Survie sans rechute , Association de médicaments/effets indésirables , Humains , Hyperlipidémies/induit chimiquement , Hyperlipidémies/traitement médicamenteux , Hyperlipidémies/épidémiologie , Hypertension artérielle/induit chimiquement , Hypertension artérielle/traitement médicamenteux , Hypertension artérielle/épidémiologie , Hypoglycémiants/usage thérapeutique , Hypolipémiants/usage thérapeutique , Immunosuppresseurs/effets indésirables , Transplantation hépatique/effets indésirables , Complications postopératoires/induit chimiquement , Complications postopératoires/épidémiologie , Études rétrospectives , Facteurs de risqueRÉSUMÉ
Apurinic apyrimidinic endonuclease (APE1)/redox effector factor 1 (Ref-1), which is a multifunction protein involved in both transcriptional regulation of gene expression during adaptive cellular responses to oxidative stress and in the base excision repair pathway of DNA lesions generated as a consequence of oxidant-induced base damage, contributes to the maintenance of genome stability. APE1/Ref-1 is normally localized in the nucleus; cytoplasmic localization observed in several tumors has been correlated with a poor prognosis. Hepatocellular carcinoma (HCC) grading is an essential tool to predict the risk of relapse and patient prognosis, particularly in patients undergoing liver transplantation (OLT). The aim of this study was to identify the role of APE1/Ref-1 in predicting a posttransplant HCC relapse. We studied 48 patients transplanted for HCC to define grading as well as nuclear and cytoplasmic APE1/Ref-1 expression within neoplastic versus nonneoplastic parenchyma. We defined a cutoff of 60% of cytoplasmic APE1/Ref-1 expression to identify positive cases. At a minimum of 1.5-year follow-up after transplantation, 32 patients are alive and 16 patients are deceased after HCC relapse. Among low-grade HCC (grades 1 and 2), 76% of cases are alive; only 34% showed cytoplasmic APE1/Ref-1 immunoreactivity. Among the high-grade cases (grades 3 and 4), 50% were alive with 64% showing cytoplasmic immunoreactivity. Nuclear reactivity was generally similar either in neoplastic or in cirrhotic livers, irrespective of the grade. These data seemed to support the hypothesis of a predictive role of APE1/Ref-1 for HCC risk of relapse, which together with tumor grade by analysis of a pretransplant needle biopsy should aid decision making for OLT.
Sujet(s)
Carcinome hépatocellulaire/épidémiologie , Carcinome hépatocellulaire/chirurgie , DNA-(apurinic or apyrimidinic site) lyase/génétique , Tumeurs du foie/épidémiologie , Tumeurs du foie/chirurgie , Carcinome hépatocellulaire/enzymologie , Carcinome hépatocellulaire/mortalité , DNA-(apurinic or apyrimidinic site) lyase/métabolisme , Régulation de l'expression des gènes tumoraux , Humains , Immunohistochimie , Cirrhose du foie/enzymologie , Cirrhose du foie/anatomopathologie , Tumeurs du foie/enzymologie , Tumeurs du foie/mortalité , Transplantation hépatique , Pronostic , Récidive , Études rétrospectives , Facteurs de risque , Taux de survieRÉSUMÉ
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.
Sujet(s)
Transplantation hépatique , Tumeurs/épidémiologie , Complications postopératoires/épidémiologie , Femelle , Humains , Incidence , Italie/épidémiologie , Mâle , Adulte d'âge moyen , Enregistrements , Risque , Analyse de survieRÉSUMÉ
An histopathologic screening method for prostate cancer assessment in organ donors is crucial because of the widening of the donor pool to older individuals. Evaluation of cancer grading with multiple biopsies is fundamental in the cases of abnormal prostate-specific antigen (PSA) values and suspect ultrasound findings. However, multiple biopsies may fail to represent the whole neoplasia, and grading may be difficult particularly because there may not be information about capsular penetration. Since October 2007, 20 prostate autopsy specimens were submitted to an histopathologic screening method of the entire prostate based on extemporary frozen section analysis (maximum 75 minutes) of shavings of samples of the lateral surfaces of the prostate gland: namely, approximately 5 samples or 7 in the case of a large gland. We produced 3-mm-thick step sections at three levels: the first was immediately taken at the cutting level, and then 30-microm sections were discarded. The following three levels of 5 microm intervals for 10 sections for each level were evaluated. There were 7 cases of undiagnosed prostate cancer, three of which were demonstrated on frozen sections with neoplastic foci of extraglandular infiltration within connective and adipose tissues outside the gland. No neoplasia was present in the other 13 cases. In all cases, the final diagnosis was confirmed by the extemporary analysis. Our goal was to confirm the optimal number of samples that were representative of the whole prostatic contour, to define time to diagnosis and to evaluate reproducibility of frozen-section histopathologic screening compared with paraffin sections. This novel approach should permit a more refined risk-benefit analysis.
Sujet(s)
Prostate/anatomopathologie , Tumeurs de la prostate/anatomopathologie , Donneurs de tissus , Tissu adipeux/anatomopathologie , Biopsie , Coupes minces congelées , Humains , Période peropératoire , Mâle , Stadification tumorale , Antigène spécifique de la prostate , Reproductibilité des résultatsRÉSUMÉ
The indications for organ transplantation continue to broaden with advances in perioperative care and immunosuppression. The elderly have especially benefited from this progress; advanced age is no longer considered a contraindication to transplantation at most centers. Although numerous studies support the use of renal allografts in older patients, only a few centers have addressed this issue as it pertains to liver transplantation. Published studies have revealed that operative course, length of hospitalization, and incidence of perioperative complications among patients older than 60 years of age are comparable with their younger adult counterparts. In our study we analyzed the clinical experiences of two centers with primary cadaveric orthotopic liver transplantations comparing patients older than 63 with patients younger than 40 years of age, suggesting no difference in unadjusted survival with age stratification. Now age cannot be considered to be a contraindication to liver transplantation.
Sujet(s)
Survie du greffon , Transplantation hépatique , Taux de survie , Adulte , Sujet âgé , Femelle , Humains , MâleRÉSUMÉ
The purpose of this study was to describe de novo post-orthotopic liver transplantation (OLT) malignancies for comparison with incidence rates in Italian cancer registries. Three hundred thirteen OLT patients engrafted from 1991 to 2006 and surviving 12 months without a previous diagnosis of cancer were evaluated for the development of de novo malignancies excluding nonmelanoma skin cancers. During a total follow-up time of 1753 PYs, 40 (12.8%) de novo malignancies were diagnosed in 40 recipients. The most common cancers were non-Hodgkin lymphoma (NHL; 20%), cancer of the head and neck (17%), Kaposi sarcoma (KS; 17%), and esophageal tumors (12%). The 1-, 3-, 5-, and 10-year estimated survival rates were 70%, 56%, 48%, and 39%. Patients with de novo cancers showed a lower 10-years survival rate (P = .0047) than patients without (39% vs 75%). The risk of cancer after OLT was 3-fold higher than that of the general population of the same age and gender (95% confidence interval [CI], 2.0-4.3). De novo tumor sites or types with significantly elevated standardized incidence ratios (SIRs) included KS (SIRs = 212), NHL (SIRs = 13.7), oesophagus (SIRs = 18.7), melanoma (SIRs = 10.1), and head and neck cancers (SIRs = 4.6). Tumors after OLT were associated with lower long-term survival, confirming that cancer is a major cause of late mortality.
Sujet(s)
Transplantation hépatique , Tumeurs/étiologie , Humains , Taux de survieRÉSUMÉ
BACKGROUND: Despite recent advances in organ preservation, immunosuppression, and surgical techniques, the biliary tree is still considered the Achilles' heel of liver transplantation. The aim of this study was to retrospectively analyze the incidence of biliary complications and identify predisposing risk factors. METHODS: From January 2004 to December 2007, 117 consecutive deceased donor liver transplantations were retrospectively analyzed for the development of biliary complications by review of medical records. Patients were divided into group 1 with biliary complications (n = 43) and group 2 without biliary complications (n = 74). RESULTS: The overall biliary complication rate was 36.8%; leakage 6% and stricture 30.8%. Univariate analysis indicated that significant predictors of biliary complications were the time interval between portal and arterial reperfusion (P = .037) and macrovacuolar steatosis of the graft >25% (P = .004). A stepwise logistic regression model demonstrated that >25% macrosteatosis of the graft was the only independent risk factor predicting biliary complications after liver transplantation (odds ratio [OR] = 5.21; CI 95% [1.79-15.15]; P = .002). No differences were noted in patient or graft survival between the 2 groups. CONCLUSION: Transplantation of a liver with >25% steatosis was a risk factor for the development of a biliary complication.
Sujet(s)
Voies biliaires/anatomopathologie , Stéatose hépatique/étiologie , Transplantation hépatique/effets indésirables , Adulte , Sujet âgé , Femelle , Humains , Mâle , Adulte d'âge moyen , Facteurs de risqueRÉSUMÉ
Pseudo-aneurysms (PAs) of the hepatic artery are rare complications of liver transplantation, which are characterized by a high mortality rate. The majority occur within the first 2 months after orthotopic liver transplantation. They become clinically manifest with sudden hypotension, gastrointestinal bleeding, and abnormal liver function test results. Early diagnosis and treatment are essential to prevent life-threatening hemorrhage. Conventional treatment consists of surgical resection and vascular reconstruction, but a feasible treatment option involves an angiographic approach with the positioning of a stent or transarterial coil embolization followed by revascularization. We report a case of posttransplantation hepatic artery PA (HA-PA) with bleeding into the duodenum, diagnosed using abdominal computed tomography (CT). Arterial kinking prevented a covered stent graft from being inserted successfully using X-ray angiography, so the patient underwent emergency surgery in an attempt to exclude the PA and revascularize the organ via an aorto-hepatic bypass with an iliac vascular graft obtained from the donor. The surgical procedure failed due to progressive macroscopic dissection of the HA wall up to the bifurcation. The patient underwent retransplantation but died 25 days later due to multiple-organ failure. Histopathology of the first liver graft confirmed arterial graft dissection and pathological changes in the donor HA wall.
Sujet(s)
Faux anévrisme/anatomopathologie , Carcinome hépatocellulaire/chirurgie , Artère hépatique/anatomopathologie , Cirrhose alcoolique/chirurgie , Tumeurs du foie/chirurgie , Transplantation hépatique/anatomopathologie , Anastomose chirurgicale , Anémie/étiologie , Maladies du duodénum/diagnostic , Issue fatale , Veines hépatiques/chirurgie , Humains , Transplantation hépatique/méthodes , Mâle , Adulte d'âge moyen , Complications postopératoires/diagnostic , Veine cave inférieure/chirurgieRÉSUMÉ
Extrahepatic disease (EHD) has been considered a contraindication to hepatectomy. Over the last few years, some series reported interesting 5-year survival rates after resection with hepatic colorectal metastases and EHD free margins. Between August 1989 and October 2005, 116 patients underwent liver resection for colorectal metastases at Surgical Department of the University of Udine, Italy. Among these, we reviewed the data of 5 patients affected by EHD. In 3 patients there were also an anastomotic recurrence of the primary tumor, in 3 patients diaphragm was infiltrated by contiguous liver metastases. We performed in all the patients minor liver resections. We have associated the radiofrequence ablation of a lesion not surgically resectable with liver resection in one case. The surgical procedure was always considered as curative. We observed no case of operative mortality. The mean survival of the entire cohort is 23.2 months (range 4-42 months). Our study, even if based upon a limited number of patients, supports the thesis that extrahepatic disease in patients affected by colorectal cancer with hepatic metastases should not be considered as an absolute contraindication to liver resection especially for the cases in with local radical cure exeresis is achievable.
Sujet(s)
Tumeurs colorectales/anatomopathologie , Tumeurs du foie/secondaire , Tumeurs du foie/chirurgie , Sujet âgé , Femelle , Humains , Mâle , Adulte d'âge moyenRÉSUMÉ
The best therapy for hepatocellular carcinoma (HCC) is still debated. Hepatic resection (HR) is the treatment of choice for single HCC in Child A patients, whereas liver transplantation (OLT) is usually reserved for Child B and C patients with multiple nodules. The aim of this study was to compare HR and OLT for HCC within the Milan criteria on an intention-to-treat basis. Forty-eight patients were treated by OLT and 38 by HR. Three- and 5-year patient survival rates were significantly higher (P = .0057) in the OLT group (79% and 74%) than after HR (61% and 26%). The 3- and 5-year disease-free survival rate was better (P = .0005) for OLT (74% and 74%) versus HR (41% and 11%). The probability of HCC recurrences after resection was greater (P = .0002) than after transplantation, achieving 31% and 76% for HR and 2% and 2% for OLT at 3 and 5 years after surgery. The median waiting list time was 118 days; two patients dropped out for HCC progression. We concluded that OLT is superior to HR for small HCC in cirrhotic patients assuming that OLT can be performed within 6 to 10 months after listing to reduce dropouts due to tumor progression.
Sujet(s)
Carcinome hépatocellulaire/chirurgie , Tumeurs du foie/chirurgie , Transplantation hépatique/statistiques et données numériques , Adulte , Sujet âgé , Survie sans rechute , Femelle , Hépatite B/complications , Hépatite B/chirurgie , Hépatite C/complications , Hépatite C/chirurgie , Humains , Transplantation hépatique/mortalité , Mâle , Adulte d'âge moyen , Procédures de chirurgie opératoire , Analyse de survie , Facteurs temps , Résultat thérapeutiqueRÉSUMÉ
We report the case of a male liver transplant recipient who developed de novo migraine while on tacrolimus therapy. Considering the inadequate control of pain using nonsteroidal antiinflammatory drugs, rizatriptan benzoate (10 mg orally) was administered (double administration). After both administrations a clinically transient ischemic attack (TIA) occurred. Rizatriptan was discontinued, the patient recovered without sequelae from both episodes of TIA. Remission of migraine occurred after discontinuation of tacrolimus and substitution with cyclosporine. We suggest that the association of rizatriptan and tacrolimus could potentially lead to an excessive risk of cerebral vasospasm and should be used with caution. A change in immunosuppressive therapy (from tacrolimus to cyclosporine or sirolimus) may improve migraine and should be the first choice. Further prospective comparative randomized trials are needed to establish the best therapeutic option in this particular subset of patients.
Sujet(s)
Accident ischémique transitoire/induit chimiquement , Transplantation hépatique/effets indésirables , Agonistes des récepteurs de la sérotonine/effets indésirables , Triazoles/effets indésirables , Tryptamines/effets indésirables , Adulte , Humains , Mâle , Migraines/traitement médicamenteux , Complications postopératoires/induit chimiquement , Résultat thérapeutiqueSujet(s)
Tumeurs de l'oesophage/chirurgie , Oesophagectomie/méthodes , Études de suivi , Humains , Laparoscopie , Lymphadénectomie , Interventions chirurgicales mini-invasives , Complications postopératoires , Qualité de vie , Enquêtes et questionnaires , Thoracoscopie , Thoracotomie , Facteurs tempsRÉSUMÉ
Neoadjuvant chemoradiotherapy (CRT) is a widely purposed and performed treatment for rectal cancer. Downstaging effects possibly enhance the rate of curative surgery and may enable sphincter preservation in low-lying tumours. The current study examines the clinical outcomes in patients enrolled in a neoadjuvant CRT-surgery protocol for rectal cancer, distinguishing between intraperitoneal and extraperitoneal cancer. From 1994 to 2003, 58 patients with a primary diagnosis of rectal cancer were enrolled in a single-centre, not randomized study based on 5-week sessions of radiotherapy associated with a 30-day protracted venous 5-FU infusion followed by surgical resection. The study population was divided into two groups according to the localization of the tumour: 18 intraperitoneal and 40 extraperitoneal (EPt). Fifty-eight patients were treated with neoadjuvant CRT and surgery. Overall mortality rate was 25.9%, no deaths were recorded during hospitalization; 10 patients (all EPt) died because of recurrence. Significant differences in disease-free survival and overall survival rates were found between intraperitoneal vs. extraperitoneal tumours (P = 0.006), both intraperitoneal vs. extraperitoneal tumours N(0) (P = 0.04 and P < 0.05) and intraperitoneal vs. extraperitoneal tumours N(+) (P < 0.05). We diagnosed all local recurrence and liver metastasis in extraperitoneal tumours (t = 0.02 and t = 0.04), and only one case of lung metastasis arose from intraperitoneal cancer. Extraperitoneal tumours could be more aggressive than intraperitoneal ones, spreading more precociously, and/or less responsive to the neoadjuvant CRT because of their localization rather than biological differences. Aside from lymph node status, the location of the tumour with respect to the peritoneum border, is also a prognostic factor of survival in rectal cancer treated by neoadjuvant CRT and surgery.
Sujet(s)
Traitement néoadjuvant/méthodes , Tumeurs du rectum/thérapie , Adulte , Sujet âgé , Antimétabolites antinéoplasiques/usage thérapeutique , Association thérapeutique/méthodes , Survie sans rechute , Femelle , Fluorouracil/usage thérapeutique , Humains , Mâle , Adulte d'âge moyen , Traitement néoadjuvant/mortalité , Récidive tumorale locale/étiologie , Récidive tumorale locale/mortalité , Radiothérapie , Tumeurs du rectum/mortalité , Tumeurs du rectum/anatomopathologie , Résultat thérapeutiqueRÉSUMÉ
Liver transplantation (OLT) is a treatment for hepatocellular carcinoma (HCC) superimposed on cirrhosis provided that the disease meets defined criteria. The aim of the study was to evaluate our experience with respect to clinical and pathological staging and long-term results. From 1996 to 2005, 50 patients underwent OLT for HCC including 43 men (86%) and seven women (14%) of median age 57 years (range 37 to 67). All patients fulfilled the Milan criteria. The HCC diagnosis was based on preoperative imaging and alpha-fetoprotein levels; no tumor biopsy was performed. Upon histological examination of the resected specimens, we discovered 6 (12%) incidentalomas and 8 (16%) cases of no HCC. Finally we had 42 "true" HCC. Twenty-six patients (52%) have been downstaged and 10 (20%) upstaged by preoperative imaging; 15% were pT1, 45% were pT2, 27% pT3, and 13% pT4a. Twenty-six percent of cases exceeded the Milan criteria. One patient (pT4a) with microvascular invasion died of pulmonary metastases at 14 months after transplantation. No HCC recurrences within the liver have been encountered at a median follow-up of 20 months (range 0 to 80 months). Overall the estimated 1-, 3-, and 5-year survival rates were 83%, 77%, and 72%, respectively. One-, 3-, and 5-year estimated survival rates were 87%, 75%, and 75% for pT1, and pT2, and 75%, 67%, and 67% for pT3 and pT4a, respectively (P = .99). Based on our experience OLT for HCC has long-term results comparable to those without HCC despite the presence of a significant number of cases exceeding the Milan criteria upon pathological staging.
Sujet(s)
Carcinome hépatocellulaire/chirurgie , Tumeurs du foie/chirurgie , Transplantation hépatique/physiologie , Adulte , Sujet âgé , Carcinome hépatocellulaire/anatomopathologie , Femelle , Humains , Tumeurs du foie/anatomopathologie , Transplantation hépatique/mortalité , Transplantation hépatique/anatomopathologie , Mâle , Adulte d'âge moyen , Stadification tumorale , Études rétrospectives , Résultat thérapeutiqueRÉSUMÉ
De novo malignancies after transplantation are a growing problem of solid organ transplant recipients, due to longer survival follow-up under chronic immunosuppression. The aim of this study was to analyze a population of 582 consecutive kidney (n = 382) and liver (n = 202) transplant recipients, who survived at least 12 months after transplantation, at a single transplant center for the development of de novo cancers. The incidence of de novo malignancies was 7% after both renal and liver transplantation. The median elapsed time from transplant to the diagnosis of de novo malignancy was 45 months (range 3 to 220) months for kidney and 37 months (range 12 to 101 months) for liver transplants. Skin cancers were the most common within renal recipients, while gastroenteric cancers were more frequently encountered in liver transplants. Oropharyngeal and upper digestive tract tumors were always associated with a history of chronic alcohol consumption in liver recipients. Liver transplant recipients treated for acute rejection had a worse cancer prognosis than patients without rejection 1- and 2-year survivals 83% and 63% versus 36% and 17% (P = .026). The estimated 1- and 2-year survival rates for all types of de novo malignancies were 79% and 66%, including 64% and 51% for solid organ tumors versus 89% and 89% for skin cancers and posttransplant lymphoproliferative disorder (PTLD) (P = .17) in renal transplants and 70% and 42%, including 57% and 28% for solid organ tumors versus 85% and 64% for skin cancers and PTLD (P = .43) in liver transplants respectively.
Sujet(s)
Transplantation rénale/effets indésirables , Transplantation hépatique/effets indésirables , Tumeurs/épidémiologie , Complications postopératoires/épidémiologie , Cadavre , Études de suivi , Humains , Incidence , Défaillance rénale chronique/chirurgie , Transplantation rénale/mortalité , Transplantation hépatique/mortalité , Tumeurs/classification , Études rétrospectives , Analyse de survie , Facteurs temps , Donneurs de tissusRÉSUMÉ
The ability to predict graft function before transplantation has proven to be a difficult task, especially for macrovacuolar steatosis that is considered a major cause of posttransplant dysfunction. It is well known that macrovacuolar steatosis greater than 25% influences the short- and long-term outcomes of liver transplantation. We retrospectively analyzed frozen sections from 43 donor livers comparing preoperative laboratory/clinical values, and liver ultrasound of a cohort of donors without (group A, n=21) versus with steatosis of 25% to 35% (group B, n=22) upon liver biopsy performed during harvesting. We analyzed the possible correlations between preoperative donor data and the degree of macrovacuolar steatosis. None of the biochemical and clinical parameters were related to the degree of hepatic steatosis. The only difference between the two groups was the echographic pattern, with evidence of 27% fatty liver by ultrasound in group B and 5% in group A (p=.04). The specificity of hepatic ultrasound for macrovacuolar steatosis was 95% and the sensitivity was only 27%, while the positive and negative predictive value were 86% and 55%, respectively. In conclusion, liver biopsy during donor harvesting remains the gold standard to identify macrovacuolar steatosis greater than 25%. Hepatic ultrasound has a role to exclude the presence of steatosis in normal livers due to its high specificity, but it is not useful to make the diagnosis of a fatty liver since it has a low sensitivity and negative predictive value. Thereafter a liver ultrasound positive for hepatic steatosis alone should not be considered a valuable tool to discard an organ from transplantation.
Sujet(s)
Stéatose hépatique/anatomopathologie , Foie/anatomopathologie , Prélèvement d'organes et de tissus/méthodes , Adulte , Sujet âgé , Stéatose hépatique/imagerie diagnostique , Femelle , Hépatectomie , Humains , Foie/chirurgie , Mâle , Adulte d'âge moyen , Surveillance peropératoire , Études rétrospectives , ÉchographieRÉSUMÉ
AIM: The last 20 years have seen a systematic reappraisal of the physiopathology and diagnosis of gastroesophageal reflux disease (GERD) and its associated typical symptoms, while less attention has been paid to correlating GERD with certain extraesophageal symptoms and the value of surgery for their treatment. The aim of this study was to determine the clinical and physiopathological features and the outcome of surgery, in a group of patients who underwent laparoscopic fundoplication for GERD with atypical symptoms, and to compare the results with another group of patients operated for GERD with typical symptoms. METHODS: Two hundred and forty-one patients were evaluated for GERD at our Digestive Physiopathology outpatients surgery from January 2001 to January 2003. Of the 36 patients who underwent laparoscopic fundoplication, 23 had the typical symptoms of GERD and 13 had atypical symptoms. Twelve months after surgery, these patients were compared in terms of 24-h pH monitoring, esophageal manometry, regression of symptoms and degree of satisfaction. RESULTS: Postoperatively, patients with atypical symptoms had a smaller increase in effective peristalsis (P = 0.06) and a more limited improvement in symptoms (54% vs 91%, P = 0.001), and they expressed less satisfaction with the surgical treatment (5.9 vs 8.2, P = 0.003). CONCLUSIONS: The results of surgery in GERD patients with atypical symptoms are worse than in those with typical symptoms. A careful preoperative work-up, based on 24-h pH monitoring, is fundamental for patients with atypical symptoms, who also need to be informed of the high likelihood of surgery proving clinically unsuccessful.