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1.
Transplant Proc ; 47(8): 2446-9, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26518948

RESUMO

BACKGROUND: Selective interleukin-2 receptor (IL2R) blockade is one option to decrease acute rejection rates in kidney transplant recipients. However, there are little data on the impact of basiliximab in a triple immunosuppressive regimen (tacrolimus, mycophenolate mofetil, and low-dose steroids). Thus, this analysis aims at investigating the impact of basiliximab induction on rejection rates and immediate graft function following kidney transplantation. METHODS: Basiliximab was introduced in our center according to our center's policy in the beginning of 2011. Patients who received basiliximab (n = 83) were compared with patients without induction therapy (n = 65) transplanted before the introduction of IL2R antibody induction. RESULTS: The use of basiliximab as induction therapy decreased the incidence of biopsy-proven acute rejection (BPAR) within the 1st year after transplantation (21.5% vs 14.5%; P = .283). Overall rejection episodes (including BPAR and borderline rejection) were significantly reduced in patients with basiliximab compared with patients without (41.5% vs 24.1%; P = .033). However, graft function (incidence of delayed graft function, primary nonfunction, slow graft function, and serum creatinine decline) and overall outcome (patient and graft survivals) were similar in both groups. CONCLUSIONS: We found a favorable impact of basiliximab induction therapy on early acute rejection rate. The impact on long-term outcome must be addressed in further randomized controlled trials.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Rejeição de Enxerto/prevenção & controle , Imunossupressores/uso terapêutico , Imunoterapia , Falência Renal Crônica/cirurgia , Transplante de Rim , Proteínas Recombinantes de Fusão/uso terapêutico , Adulto , Idoso , Basiliximab , Feminino , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/análogos & derivados , Ácido Micofenólico/uso terapêutico , Estudos Retrospectivos , Esteroides/uso terapêutico , Tacrolimo/uso terapêutico
2.
Am J Transplant ; 13(1): 130-5, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23016801

RESUMO

The impact of vesicoureteral reflux (VUR) on renal allograft outcomes is debatable, with small cohort studies reporting controversial results. The objective of this retrospective study was to evaluate long-term clinical effects of early VUR in a large cohort of kidney transplant patients. Posttransplantation voiding cystourethrography was used to evaluate 646 consecutive kidney transplant recipients before discharge. The study endpoints included VUR grade, death-censored graft or patient survival, renal function, proteinuria and occurrence of urinary tract infections (UTIs). Of the 646 recipients, 263 (40.7%) were diagnosed with VUR. VUR grade II was most common (19.8%), followed by grades III (10.2%), I (7.9%) and IV (2.8%). VUR was less common in transplantations performed by experienced compared to inexperienced surgeons (36% vs. 48%; p = 0.004). VUR did not affect death-censored graft or patient survival and was not associated with proteinuria or occurrence of UTIs. Patients with VUR had a lower eGFR at 1 year after transplantation than did patients without VUR (60 vs. 52 mL/min/1.73 m(2) ; p = 0.02), although this difference was not observed at 3 and 5 years after transplantation. We conclude that early VUR, a common finding among renal transplant patients, may not have a meaningful impact on long-term transplant outcomes.


Assuntos
Transplante de Rim , Micção , Urografia/métodos , Refluxo Vesicoureteral/complicações , Adulto , Feminino , Humanos , Transplante de Rim/efeitos adversos , Masculino , Pessoa de Meia-Idade , Proteinúria/etiologia , Proteinúria/prevenção & controle , Infecções Urinárias/etiologia , Infecções Urinárias/prevenção & controle
3.
Clin Transplant ; 23(3): 361-7, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19191813

RESUMO

BACKGROUND: Strictures and concrements are the most common biliary complications following liver transplantation. Endoscopic treatment might not lead to a definitive cure in all patients, especially in strictures involving the biliary bifurcation. The aim of this study was to determine the efficacy and the long-term outcome of hepaticojejunostomy (HJS) for post-transplant biliary tract obstruction. MATERIAL AND METHODS: Thirty-seven patients were retrospectively studied for resolving of cholestasis and the incidence of recurring biliary obstruction. RESULTS: Surgery was performed because of anastomotic strictures in 11, ischemic strictures at the donor common bile duct in seven, strictures involving the bile duct bifurcation in 10, hepatolithiasis without strictures in one and biliary cast formation diagnosed by endoscopic retrograde cholangiography or T-tube cholangiography in eight patients. Cholestasis instantly improved in 82% of the patients. After a long-term follow-up of median 33 months (range 3-149), 28 of the patients (76%) required no further intervention for recurring biliary obstruction following HJS. Anastomotic strictures were observed in six (16%), recurring biliary concrements in two patients (5%). CONCLUSION: HJS did prevent recurrent biliary obstruction in the majority of the patients. We therefore recommend early HJS for complicated post-transplant biliary tract obstruction not treatable by a limited number of endoscopic interventions.


Assuntos
Doenças Biliares/cirurgia , Ducto Hepático Comum/cirurgia , Jejuno/cirurgia , Transplante de Fígado/efeitos adversos , Adulto , Idoso , Anastomose Cirúrgica , Doenças Biliares/etiologia , Coledocostomia/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Prevenção Secundária , Adulto Jovem
4.
Clin Transplant ; 20(4): 471-5, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16842524

RESUMO

BACKGROUND: In January 1999 a new kidney allocation program was launched by the Eurotransplant Foundation, the 'Eurotransplant Senior Program' (ESP). Cadaveric donors above the age of 65 yr are allocated to kidney transplant recipients of the same age group. METHODS: Using a single-center database, 91 patients who underwent first renal transplantation at the age of 65 yr and older in the years 1999-2002 were identified. Fifty-six patients were transplanted through ESP allocation (study group) and 35 patients (control group) via normal Eurotransplant Kidney Allocation System (ETKAS) procedure. RESULTS: Age, sex and comorbid conditions did not differ by group. The rate of acute rejection episodes, primary non-function, delayed graft function, perioperative mortality did not differ by group. Serum creatinine was significantly lower in the ETKAS group (1.3 vs. 1.9 mg/dL; p=0.015) from six months after the transplantation on. Overall graft survival at six yr was 56% in the ETKAS group and 52% in the ESP group. With 73% in the ETKAS group and 71% in the ESP group, cumulative patient survival according to the Kaplan-Meier estimation was not statistically different at five yr. CONCLUSIONS: We did not find a relevant difference in the outcome between young and old kidney transplants in old recipients after this long observation period.


Assuntos
Transplante de Rim/fisiologia , Doadores de Tecidos/estatística & dados numéricos , Idoso , Biópsia , Cadáver , Feminino , Sobrevivência de Enxerto , Humanos , Transplante de Rim/mortalidade , Transplante de Rim/patologia , Masculino , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento
5.
Clin Transplant ; 19(4): 532-6, 2005 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16008601

RESUMO

BACKGROUND: The aim of this cohort study was to assess the cumulative effect of marginal donor criteria on initial graft function and patient survival after liver transplantation. METHODS: We included 734 consecutive patients who underwent orthotopic liver transplantation at the Vienna General Hospital between January 1993 and December 2003. We employed the local registry of the Department of Transplant Surgery, where variables of all patients are routinely and prospectively recorded. Primary outcome was initial graft function, secondary outcome was patient survival. RESULTS: Cumulative number of marginal donor criteria was significantly and linearly associated with an increased rate of primary dysfunction (PDF; p = 0.005). In patients with more than three cumulative marginal donor criteria the rate of PDF was 36%. Patient survival was not influenced by the cumulative number of donor criteria (log-rank test, p = 0.81). Independent marginal donor criteria to predict PDF were cold ischemia time >10 h [odds ratio (OR) 0.56; 95% CI 0.32-0.98] and donor peak serum sodium >155 mEq/L (OR 0.44; 95% CI 0.26-0.77), as assessed in a multivariate regression model. CONCLUSIONS: The use of marginal liver donors with more than three marginal donor criteria shows deleterious effects on initial graft function. Noteworthy, patient survival was not associated with marginal donor criteria, which may be explained by early and successful retransplantation of liver recipients with primary non-function.


Assuntos
Transplante de Fígado , Doadores de Tecidos , Estudos de Coortes , Sobrevivência de Enxerto , Humanos , Fígado/fisiologia , Transplante de Fígado/mortalidade , Pessoa de Meia-Idade , Estudos Prospectivos
6.
Br J Cancer ; 85(12): 1850-2, 2001 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-11747325
7.
Wien Klin Wochenschr ; 113(17-18): 681-7, 2001 Sep 17.
Artigo em Alemão | MEDLINE | ID: mdl-11603103

RESUMO

INTRODUCTION: Hepatic resection has been shown to prolong survival in selected patients with colorectal liver metastases. Due to slow tumor growth patients with neuroendocrine liver metastases tend to have a good prognosis and benefit from chemo-embolisation and symptomatic treatment. The role of surgery in treating non-neuroendocrine and non-colorectal liver metastases is discussed controversially, due to the limited knowledge on this subject. The aim of our study was, therefore, to evaluate our own experiences with hepatic surgery for non-neuroendocrine, non-colorectal liver metastases. METHODS: A retrospective review of 72 patients (median age 60.9 years) who underwent 73 hepatic resections for non-neuroendocrine, non-colorectal liver metastases between 1980 and 2000 at a single tertial referral center was carried out. RESULTS: Hepatic resection was combined with surgery for the primary tumor in 30 cases (41.1%). Hospital mortality was 4.2%. 35 patients (47.9%) developed complications. The mean hospital stay was 17.5 days. In 64.4% of the cases a potentially curative resection was reached. Overall actuarial survival was 52.1% at 1 year, 25.3% at 3 years and 9.9% at 5 years. The respective median overall survival times were 7.1 months (gastric cancer metastases; n = 15), 4.9 months (cholangiocellular cancer metastases; n = 9), 5.6 months (gall bladder, bile duct cancer metastases; n = 8), 35.4 months (kidney cancer metastases; n = 8), 14.4 months (breast cancer metastases; n = 4), 15.3 months (pancreas and other adenocarcinoma metastases; n = 11), 49.9 months (sarcoma metastases; n = 10) and 32.9 months (other metastases; n = 7). CONCLUSIONS: In isolated hepatic metastases originating from sarcoma and hypernephroma radical resection can prolong survival. However, surgery cannot improve the prognosis in patients with liver metastases originating from the pancreas, gallbladder and the biliary tract. In selected patients with liver metastases from gastric and breast cancer long term survival seems possible after resection.


Assuntos
Hepatectomia , Neoplasias Hepáticas/secundário , Neoplasias Hepáticas/cirurgia , Adenocarcinoma/secundário , Adenocarcinoma/cirurgia , Carcinoma/secundário , Carcinoma/cirurgia , Intervalo Livre de Doença , Feminino , Hepatectomia/métodos , Mortalidade Hospitalar , Humanos , Neoplasias Hepáticas/mortalidade , Linfoma/cirurgia , Masculino , Melanoma/secundário , Melanoma/cirurgia , Pessoa de Meia-Idade , Estudos Retrospectivos , Sarcoma/secundário , Sarcoma/cirurgia , Análise de Sobrevida , Resultado do Tratamento
8.
Transplantation ; 71(11): 1666-70, 2001 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-11435980

RESUMO

BACKGROUND: Renal allograft rejection is associated with the expression of adhesion molecules on vascular endothelial and tubular epithelial cells. METHODS: To assess whether the number of cell adhesion molecules expressed in donor kidneys can predict early rejection or delayed graft function, kidney biopsies from 20 living and 53 cadaveric kidney donors were obtained before engraftment into the recipients and the expression of the cell adhesion molecules intercellular adhesion molecule 1 (ICAM-1), vascular cell adhesion molecule 1 (VCAM-1), and endothelial leukocyte adhesion molecule (E-selectin) were determined by immunohistochemistry. RESULTS: All biopsies from living donors showed significantly lower expression of ICAM-1 and VCAM-1 compared to biopsies from cadaveric donors. There was no difference in the expression of adhesion molecules on tubular cells between transplants with primary function compared to allografts with early rejection in living donated kidneys (ICAM-1: 2+/-8 vs. 3+/-8%; VCAM-1: 9+/-7 vs. 1+/-1%), as well as in cadaveric kidneys (ICAM-1: 38+/-29 vs. 39+/-38%; VCAM-1: 55+/-27 vs. 48+/-29%). The expression of ICAM-1 molecules on tubular cells was determined to be a predictor for the occurrence of delayed graft function in cadaveric kidneys (ICAM-1: 65+/-24* vs. 38+/-29% delayed graft versus primary graft function). No delayed graft function occurred in recipients of living donated kidneys. CONCLUSIONS: These data suggest that adhesion molecule expression in donor biopsies is not a predictor for early allograft rejection, but can be used as a marker for the development of postischemic acute renal allograft failure.


Assuntos
Selectina E/metabolismo , Molécula 1 de Adesão Intercelular/metabolismo , Transplante de Rim/efeitos adversos , Rim/fisiopatologia , Doadores de Tecidos , Molécula 1 de Adesão de Célula Vascular/metabolismo , Adulto , Biópsia , Humanos , Imuno-Histoquímica , Rim/metabolismo , Rim/patologia , Pessoa de Meia-Idade , Período Pós-Operatório , Prognóstico , Insuficiência Renal/etiologia , Insuficiência Renal/fisiopatologia
9.
Eur J Surg ; 167(1): 29-34, 2001 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11213817

RESUMO

OBJECTIVE: To find out whether packing or wrapping with polyglactin 910 mesh was more effective in stopping bleeding in livers that had been damaged during transplantation. DESIGN: Retrospective study. SETTING: University hospital, Austria. SUBJECTS AND INTERVENTIONS: 15 of 27 livers that had been damaged during transplantation bled sufficiently to warrant either packing (n = 6) or wrapping (n = 9). MAIN OUTCOME MEASURES: Arrest of bleeding; other complications. RESULTS: Both packing and wrapping succeeded in stopping the bleeding, and neither caused infections. Packing may theoretically cause an increase in intra-abdominal pressure and impair organ function. CONCLUSION: It is preferable to wrap rather than pack a bleeding liver that has been damaged during transplantation.


Assuntos
Hemorragia/terapia , Complicações Intraoperatórias/terapia , Transplante de Fígado/efeitos adversos , Fígado/lesões , Telas Cirúrgicas , Adulto , Idoso , Feminino , Humanos , Fígado/cirurgia , Transplante de Fígado/métodos , Masculino , Pessoa de Meia-Idade , Poliglactina 910/uso terapêutico , Estudos Retrospectivos
10.
Transplantation ; 69(10): 2079-84, 2000 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-10852600

RESUMO

BACKGROUND: A 35-year period of clinical development resulted in orthotopic liver transplantation (OLT) becoming a standardized surgical procedure. Despite this progress, the rate of technical complications is still high. Although the main problem in most analyses is vascular or bile duct failure, we observed a remarkable number of parenchymal liver injuries that led to intraoperative problems. Our aim, therefore, is to present an overall report on the incidence, treatment, and clinical course of parenchymal liver injuries in OLT. METHODS: Five hundred seventy-two consecutive OLT procedures performed between 1988 and 1998 were analyzed in a retrospective study. Parenchymal liver injury was diagnosed by means of examination of the surgical reports. Donor- and recipient-related data followed the medical report. The lesions were classified according to the Organ Injury Scale. RESULTS: Parenchymal liver injury was diagnosed in 23 patients (4%). The lesions were classified as grade Ia (13.1%), grade Ib (13.1%), grade IIb (52.1%), grade IIIa (17.1%), and grade IIIb (4.3%). In 19 patients (82.6%), the lesion was detected during OLT, and in four patients (17.4%), during relaparotomy. The latter group showed significantly higher-grade injuries. Treatment was suture or fibringlue alone, 17.4%; fibringlue and hemostyptics, 26.1%, mesh wrapping 30.4%, and mesh packing 26.1%. Seven patients (30.4%) underwent relaparotomy. Further active bleeding was not found in any of them. Statistical analysis found a correlation between injury grade and relaparotomy rate. No patients died as a result of parenchymal liver injury. CONCLUSIONS: Parenchymal liver injuries can be treated well, with no adverse effect on patient or graft survival. An early decision concerning the surgical procedure for controlling hemorrhage is required. A basically aggressive therapeutic approach might avoid further complications relating to reperfusion edema.


Assuntos
Transplante de Fígado/métodos , Transplante de Fígado/fisiologia , Fígado/patologia , Adulto , Cadáver , Causas de Morte , Feminino , Hemorragia , Humanos , Fígado/lesões , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/terapia , Reoperação , Estudos Retrospectivos , Doadores de Tecidos/estatística & dados numéricos
11.
World J Surg ; 24(6): 717-21, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10773125

RESUMO

A series of 74 consecutive patients (48 women, 26 men) were operated for abdominal hydatid disease between June 1949 and December 1995. The patients ranged in age from 15 to 81 years (median 49 years). In 69 cases only the liver was affected; two patients had concomitant extrahepatic disease (one spleen, one spleen and lung), and 3 had cysts in the spleen only. Cysts were multiple in 11 patients and calcified in 24. Conservative surgical procedures were used for 22 cysts in 20 patients [open partial (n = 3), open total (n = 6), closed total cystectomy (n = 9), marsupialization (n = 2), drainage (n = 2)] and radical surgical procedures for 72 cysts in 54 patients [pericystectomy (n = 41), wedge liver resection or hemihepatectomy (n = 25), splenectomy (n = 5), radical resection of a lung cyst (n = 1)]. Altogether 37 patients (50%) were given perioperative antihelmintic chemotherapy with mebendazole (18 patients) or albendazole (19 patients). Operative mortality rates were 5.0% after conservative surgery and 1.8% after radical surgery. Morbidity rates were 25.0% following conservative surgery and 24.1% following radical surgery. Antihelmintic therapy was well tolerated by all but five patients. All side effects were entirely reversible. Among the 74 patients, 60 (81.0%) were available for long-term follow-up (median 7.2 years; range 2.0-47.0 years). Recurrence of disease was seen in 9 of 60 patients at an interval of 3 months to 20 years from the first operation. The rate of recurrence was significantly lower after radical surgical procedures (p = 0.03) and after closed removal of the cyst (p = 0.04).


Assuntos
Equinococose Hepática/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Albendazol/uso terapêutico , Anti-Helmínticos/uso terapêutico , Antinematódeos/uso terapêutico , Equinococose/cirurgia , Feminino , Humanos , Masculino , Mebendazol/uso terapêutico , Pessoa de Meia-Idade , Recidiva , Esplenopatias/cirurgia
12.
Blood ; 95(3): 795-801, 2000 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-10648388

RESUMO

Thrombopoietin (TPO) deficiency has been proposed as an important etiologic factor for thrombocytopenia in advanced-stage liver disease. To clarify the contributions of platelet production, platelet consumption, coagulation activation, and splenic sequestration to thrombocytopenia in liver disease, we studied TPO serum levels and markers of platelet production, platelet activation, and coagulation activation before and 14 days after orthotopic liver transplantation (OLT) in 18 patients with advanced liver cirrhosis. Thrombocytopenia before transplantation occurred with low-normal serum levels of TPO, normal levels of platelet and coagulation activation markers, and no increase in bone marrow production of platelets. TPO serum levels increased significantly on the first day after OLT, preceding the increase of reticulated platelets by 3 days and peripheral platelets by 5 days. Normalization of the peripheral platelet count occurred in most patients within 14 days of OLT, irrespective of the change in spleen size assessed by computed tomography volumetry. Normalization of platelet counts was not hampered by a certain degree of platelet activation observed during the steepest increase in the peripheral platelet count. Bone marrow production of platelets increased significantly within 2 weeks of transplantation. Low TPO serum levels with low platelet counts and without platelet consumption suggests low TPO production in end-stage liver disease. The rapid increase in TPO serum levels after transplantation induces an increase in the bone marrow production of platelets. Decreased TPO production in the cirrhotic liver is an important etiologic factor for thrombocytopenia in liver disease that is rapidly reversed by transplantation.


Assuntos
Hematopoese , Cirrose Hepática/complicações , Transplante de Fígado , Megacariócitos/patologia , Trombocitopenia/etiologia , Trombopoetina/fisiologia , Adulto , Idoso , Biomarcadores , Plaquetas/patologia , Proteínas Sanguíneas/análise , Medula Óssea/patologia , Diferenciação Celular , Feminino , Humanos , Cirrose Hepática/sangue , Cirrose Hepática/cirurgia , Masculino , Pessoa de Meia-Idade , Ativação Plaquetária , Contagem de Plaquetas , Baço/patologia , Trombopoetina/sangue , Trombopoetina/deficiência , Fatores de Tempo
13.
Eur J Gastroenterol Hepatol ; 11(2): 151-6, 1999 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-10102225

RESUMO

OBJECTIVES: Thrombopoietin (TPO), the key regulator of platelet production, is mainly produced by the liver and reduced expression of TPO could cause thrombocytopenia in liver cirrhosis. Reversal of thrombocytopenia by orthotopic liver transplantation seems to be mediated through an increase in TPO plasma levels after transplantation, but other cytokines with thrombopoietic activity could augment the actions of TPO on post transplant platelet recovery. DESIGN: Measurement of thrombopoietic cytokines before and for 14 days post liver transplantation in a cohort of thrombocytopenic liver transplant patients. METHODS: TPO, interleukin-3 (IL-3), IL-6, and IL-11 plasma levels as well as peripheral platelet count were analysed in thrombocytopenic patients with liver disease undergoing orthotopic liver transplantation (17 patients) and followed for 14 days after the intervention. RESULTS: Before liver transplantation, TPO plasma levels were undetectable and IL-3, IL-6, and IL-11 levels were normal. Sixteen out of 17 patients showed a significant rise of TPO levels within 2 days after transplantation, with a peak between days 4 and 6, while IL-3 and IL-6 levels did not show a significant rise. IL-11 levels remained normal. Platelet counts were significantly higher than pretransplantation levels by day 14 post transplantation. CONCLUSION: Restitution of normal TPO production by liver replacement seems to be of key importance for reversal of thrombocytopenia in liver disease. The early acting thrombopoietic factor IL-3 and the late acting factors IL-6 and IL-11 do not play a major role for recovery of peripheral platelet count after orthotopic liver transplantation.


Assuntos
Interleucina-11/sangue , Interleucina-3/sangue , Interleucina-6/sangue , Transplante de Fígado , Trombocitopenia/terapia , Trombopoetina/sangue , Análise de Variância , Plaquetas/fisiologia , Estudos de Coortes , Seguimentos , Humanos , Fígado/metabolismo , Cirrose Hepática/sangue , Cirrose Hepática/cirurgia , Falência Hepática/cirurgia , Contagem de Plaquetas , Complexo Glicoproteico GPIIb-IIIa de Plaquetas/análise , Complexo Glicoproteico GPIb-IX de Plaquetas/análise , Trombopoetina/biossíntese
14.
Wien Klin Wochenschr ; 110(16): 570-8, 1998 Sep 04.
Artigo em Alemão | MEDLINE | ID: mdl-9782578

RESUMO

Acute hepatic failure is characterized by jaundice and hepatic encephalopathy within eight weeks after the onset of disease. Although acute hepatic failure is a rare occurrence, its rapid progression and high mortality (50 to 90%, depending on the etiology of disease) necessitate immediate intervention. In the absence of causal therapy, orthotopic liver transplantation is currently the only definitive and effective means of treating acute hepatic failure in Europe, acute hepatic failure accounts for 11% of all liver transplantations. At the University department of transplantation surgery in Vienna a total of 27 patients with acute hepatic failure underwent 31 liver transplantations in the last 10 years (1.1.1987 to 31.12.1996). Twenty (74%) of the 27 patients survived the acute event and were discharged from hospital in good general condition after a median postoperative stay of 25 days (range 14-81 days). Seven patients (26%) died between the first and 34th postoperative day (median 26 days) in the intensive care unit, although all potential modern options of intensive care and surgery were used. The causes of death were irreversible cerebral edema (n = 3), multiple organ failure due to bacterial sepsis (n = 3) and uncontrollable haemolysis (n = 1). With a 3-year graft survival rate of 70% the 3-year patient survival rate was 74%. A retrospective analysis of our patients revealed that the postoperative graft function and the incidence of re-transplantation were significant prognostic factors (p < 0.05) for survival following orthotopic liver transplantation for acute hepatic failure. In the absence of further prognostically relevant preoperative indices and in consideration of the potentially fulminant progression of disease, we strongly recommend that any patient, in whom acute hepatic failure is suspected, is immediately transferred to a specialized center with experience both in the conservative treatment of acute hepatic failure and emergency liver transplantation.


Assuntos
Falência Hepática Aguda/cirurgia , Transplante de Fígado , Adolescente , Adulto , Áustria , Causas de Morte , Criança , Cuidados Críticos , Feminino , Mortalidade Hospitalar , Humanos , Falência Hepática Aguda/etiologia , Falência Hepática Aguda/mortalidade , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/mortalidade , Taxa de Sobrevida
15.
Transpl Int ; 11(4): 277-80, 1998.
Artigo em Inglês | MEDLINE | ID: mdl-9704391

RESUMO

Post-transplant lymphoceles (LC) may lead to impaired graft function. Treatment modalities include fine-needle aspiration, percutaneous drainage, and surgical internal drainage. Recently, laparoscopic fenestration has been performed with good results, but experience is still limited. Between January 1991 and August 1996, 919 kidney transplantations were performed in 876 patients at our department. There were 745 first, 133 second, 30 third, 9 fourth, and 2 fifth operations. Sixty-three symptomatic LCs were detected in 62 patients (6.8%) after 39 +/- 31 days. In 44% of the cases, graft function was impaired; in 29% hydronephrosis was documented and in 6% infection of the LC. Forty-five of the 62 patients with LC (73%) had histologically proven rejection. Thirty-five of the 63 LCs were drained percutaneously, 20 LCs were internally drained by open surgery, and 8 LCs were drained by laparoscopy. In 14 of the 47 patients (30%) with primary percutaneous drainage, LC recurred; infection occurred in 17%. Twelve of these patients underwent surgery. One surgical redrainage was necessary after open fenestration. No conversion or complication was noted in the laparoscopy group. We conclude that surgery for post-transplant lymphoceles is safe and effective. We favor the laparoscopic technique in selected patients.


Assuntos
Transplante de Rim/efeitos adversos , Linfocele/cirurgia , Adulto , Idoso , Feminino , Humanos , Laparoscopia , Linfocele/etiologia , Masculino , Pessoa de Meia-Idade
17.
J Hepatol ; 27(1): 127-31, 1997 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-9252085

RESUMO

BACKGROUND/AIMS: Thrombocytopenia secondary to cirrhosis of the liver and portal hypertension is a well-known complication of advanced stage liver disease, but theories about the underlying pathogenetic mechanisms, mostly centering on splenic sequestration and destruction of platelets, have failed to solve the problem so far. METHODS: Peripheral platelet count and thrombopoietin levels in human plasma were measured in 28 patients with cirrhosis of the liver. Seven of those patients underwent orthotopic liver transplantation and five patients portal decompression by transjugular intrahepatic portosystemic shunt. Thrombopoietin plasma levels were followed for 14 days after the interventions. RESULTS: No measurable thrombopoietin was detectable in the plasma of 28 thrombocytopenic patients with cirrhosis of the liver, in contrast to thrombocytopenic patients without liver disease. Seven of these patients with cirrhosis underwent orthotopic liver transplantation, resulting in a rise of thrombopoietin levels within 2 days after transplantation. The rise in platelet number followed with a mean lag of 6 days, and shortly thereafter, thrombopoietin levels returned to levels below the limit of detection. Five patients with thrombocytopenia, who underwent only decompression of portal hypertension, showed no rise in either thrombopoietin levels or platelet count. CONCLUSIONS: Thrombocytopenia associated with liver disease may at least in part be attributable to inadequate thrombopoietin production in the failing liver.


Assuntos
Cirrose Hepática/sangue , Trombocitopenia/etiologia , Trombopoetina/sangue , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/cirurgia , Transplante de Fígado/efeitos adversos , Derivação Portossistêmica Transjugular Intra-Hepática/efeitos adversos , Trombocitopenia/sangue
18.
Br J Urol ; 77(4): 518-23, 1996 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-8777610

RESUMO

OBJECTIVE: To determine the benefit of renal autotransplantation in selected patients with either renovascular lesions, renal or urothelial carcinomas or other disorders of the urinary collecting system. PATIENTS AND METHODS: Between 1977 and 1994, 12 patients underwent renal autotransplantation, six involving renovascular hypertension, two involving tumours of the renal parenchyma, two with urothelial tumours and two with long ureteric stenoses. Pre-operative renal function was normal in six patients and impaired in five. One patient was on haemodialysis. Five patients had a solitary kidney and four patients had functionally solitary kidneys. The follow-up period ranged from 1 to 93 months (mean 34.9). RESULTS: Post-operatively, six patients had normal kidney function (serum creatinine < or = 12 mg/L), five patients had impaired renal function (creatinine content < or = 26 mg/L) and one patient was on haemodialysis due to arterial graft thrombosis. Serum creatinine levels improved in four patients and were stable in another four. Renal function deteriorated in three patients and one patient required a graft-nephrectomy. Immediate post-operative complications included arterial thrombosis in one patient, perirenal haematoma in two, pulmonary oedema in one and severe intra-operative bradycardia requiring a transient cardiac pacemaker in one. CONCLUSION: Renal autotransplantation represents an effective alternative treatment with good long-term results for selected patients with long ureteric lesions and renovascular disorders. It is also an effective method for patients with urological malignancies, especially those with solitary kidneys where the maintenance of renal function is of major concern.


Assuntos
Transplante de Rim , Doenças Urológicas/cirurgia , Adulto , Idoso , Feminino , Seguimentos , Humanos , Neoplasias Renais/cirurgia , Transplante de Rim/efeitos adversos , Transplante de Rim/métodos , Masculino , Pessoa de Meia-Idade , Cuidados Pós-Operatórios , Taxa de Sobrevida , Transplante Autólogo
19.
Transpl Int ; 9 Suppl 1: S132-4, 1996.
Artigo em Inglês | MEDLINE | ID: mdl-8959809

RESUMO

Failure of the hepatic allograft continues to be a serious life-threatening risk for the recipient. Because no effective method of extracorporeal support is available for these patients, early retransplantation is the only alternative that offers the potential for survival. The aim of this prospective analysis was to search for a predictor of primary non-function of hepatic allografts before reperfusion. From March to June 1993 we investigated 19 liver biopsies which were obtained during the preparation of the donor liver in the back table bath immediately before the implantation of the organ. All organs were preserved by UW solution. Biopsies were stored at -80 degrees C, the working-up process was started by dividing the biopsy into several portions for the determination of fat (petrol-ether extraction), water (weighing before thawing and after drying) and free amino acids (OPA-HPLC method). Graft function was categorized into three groups: (1) good function; (2) fair function; (3) primary non-function (PNF). In addition to known risk factors for delayed graft function such as a long stay of the donor in intensive care and a prolonged anhepatic period of the recipient, we were able to demonstrate that organs with malfunction had a higher fat and water content. Donor livers developing PNF showed a trend towards higher total and subdivided amino acids, which could be explained by the incapacity of the liver to utilize available substrates for gluconeogenesis.


Assuntos
Transplante de Fígado/efeitos adversos , Fígado/patologia , Preservação de Órgãos , Biópsia , Temperatura Baixa , Humanos , Estudos Prospectivos
20.
Transpl Int ; 9 Suppl 1: S151-4, 1996.
Artigo em Inglês | MEDLINE | ID: mdl-8959813

RESUMO

Although early survival following transplantation for primary hepatic cancer is excellent, previously reported high recurrence rates have generally discouraged liver replacement for this condition. The aim of this retrospective analysis was to examine the influence of risk factors on the development of early tumor recurrence. Between December 1982 and June 1995, 480 liver transplantations were performed at a single institution. Out of these, 103 patients had unresectable primary hepatic cancer (88 hepatocellular cancer; HCCA; 20%) and 15 had cholangiocellular cancer (CHCA; 4%). The influence of the following tumor-associated risk factors was assessed: tumor size, tumor distribution within the liver, grading, pseudocapsular formation, vascular invasion, lymph node metastasis, and cirrhotic alteration. The diagnosis of tumor recurrence was made using various radiological imaging techniques, reelevation of serum alphafetoprotein, or autopsy. For patient survival and disease-free period, data analysis was performed by the method of Kaplan-Meier. The Cox model was used for multivariate analysis; a P-value of less than 0.05 was considered to be significant. The mean age of the 103 patients was 54 years (range 15-63a). There were 22 female and 81 male patients. The follow-up period ranged between 4 and 108 months. Twenty-nine patients (50%) died during the follow-up period due to recurrence of disease. The survival rates of the 88 patients with HCCA were 57%, 34%, and 26% at 1, 3, and 5 years, respectively, after orthotopic liver transplantation (oLTX; follow-up 36 month). Of the 15 pts with CHCA the rates were 53%, 33%, and 33%, respectively, with a median follow-up of 60 months. The influence of the risk factors studied showed a significantly longer disease-free period for the following tumor characteristics: grading below or equal 2 (P = 0.009) and absence of vascular invasion (P = 0.04). Regarding a median survival rate of 2-4 months for patients with unresectable malignant liver tumors, these results confirmed the indication for oLTX, especially if the patient does not compete with someone on the waiting list for benign liver disease.


Assuntos
Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Recidiva Local de Neoplasia , Adolescente , Adulto , Idoso , Feminino , Humanos , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
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