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1.
Hepatology ; 58(5): 1732-41, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23703953

RESUMO

UNLABELLED: We investigated left ventricular diastolic dysfunction (LVDD) and its relationship with circulatory function and prognosis in cirrhosis with portal hypertension and normal creatinine. Conventional and tissue Doppler (TDI) echocardiography, systemic and hepatic hemodynamics, and the activity of endogenous vasoactive systems (AEVS) were measured prospectively in 80 patients. Plasma renin activity (PRA; >4 ng/mL/hour) was used as a surrogate of effective arterial blood volume. Patients were followed up for 12 months. Thirty-seven patients had LVDD (19 with grade 1 and 18 with grade 2). Left ventricular hypertrophy, left atrial volume, AEVS, and natriuretic peptide levels were significantly greater in patients with LVDD than without LVDD. Patients with grade 2 LVDD, compared to grade 1 LVDD and without LVDD, had significantly lower mean arterial pressure and higher Model for End-Stage Liver Disease (MELD) score, E-wave transmitral/early diastolic mitral annular velocity (E/e' ratio), cardiopulmonary pressures, PRA, and natriuretic peptide levels. Systolic and cardiac chronotropic function were significantly lower in patients with grade 2 LVDD than without LVDD. LVDD was more frequent in patients with ascites and increased PRA than patients without ascites or with ascites but normal PRA. Fourteen patients with LVDD developed hepatorenal syndrome (HRS) type 1 on follow-up. Survival was different according to degree of LVDD (without LVDD: 95%; grade 1 LVDD: 79%; grade 2 LVDD: 39%; P < 0.001). Independent predictive factors of mortality were MELD score and E/e' ratio. CONCLUSION: LVDD occurs simultaneously with other changes in cardiac structure and function and is associated with an impairment of effective arterial blood volume. LVDD is a sensitive marker of advanced cirrhosis, type 1 HRS development, and mortality.


Assuntos
Creatinina/sangue , Diástole/fisiologia , Hipertensão Portal/fisiopatologia , Cirrose Hepática/fisiopatologia , Disfunção Ventricular Esquerda/fisiopatologia , Adulto , Fator Natriurético Atrial/sangue , Feminino , Frequência Cardíaca , Síndrome Hepatorrenal/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Renina/sangue , Índice de Gravidade de Doença
2.
Clin Gastroenterol Hepatol ; 10(7): 776-83, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22289875

RESUMO

BACKGROUND & AIMS: Portal vein thrombosis (PVT) is a frequent event in patients with cirrhosis; it can be treated with anticoagulants, but there are limited data regarding safety and efficacy of this approach. We evaluated this therapy in a large series of patients with cirrhosis and non-neoplastic PVT. METHODS: We analyzed data from 55 patients with cirrhosis and PVT, diagnosed from June 2003 to September 2010, who received anticoagulant therapy for acute or subacute thrombosis (n = 31) or progression of previously known PVT (n = 24). Patients with cavernomatous transformation were excluded. Thrombosis was diagnosed, and recanalization was evaluated by using Doppler ultrasound, angio-computed tomography, and/or angio-magnetic resonance imaging analyses. RESULTS: Partial or complete recanalization was achieved in 33 patients (60%; complete in 25). Early initiation of anticoagulation was the only factor significantly associated with recanalization. Rethrombosis after complete recanalization occurred in 38.5% of patients after anticoagulation therapy was stopped. Despite similar baseline characteristics, patients who achieved recanalization developed less frequent liver-related events (portal hypertension-related bleeding, ascites, or hepatic encephalopathy) during the follow-up period, but this difference was not statistically significant (P = .1). Five patients developed bleeding complications that were probably related to anticoagulation. A platelet count <50 × 109/L was the only factor significantly associated with higher risk for experiencing a bleeding complication. There were no deaths related to anticoagulation therapy. CONCLUSIONS: Anticoagulation is a relatively safe treatment that leads to partial or complete recanalization of the portal venous axis in 60% of patients with cirrhosis and PVT; it should be maintained indefinitely to prevent rethrombosis.


Assuntos
Anticoagulantes/administração & dosagem , Anticoagulantes/efeitos adversos , Cirrose Hepática/complicações , Veia Porta/patologia , Trombose Venosa/tratamento farmacológico , Adulto , Idoso , Angiografia , Vértebra Cervical Áxis , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Veia Porta/diagnóstico por imagem , Radiografia Abdominal , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Ultrassonografia
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