Liver Unit, University Calgary Cumming School of Medicine, 3330 Hospital Dr NW, Calgary, AB, T2N 4N1, Canada.
Liver Center, Department of Internal Medicine, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan, Gyeongnam, 50612, South Korea.
Curr Gastroenterol Rep. 2020 Jul 10;22(9):45. doi: 10.1007/s11894-020-00783-1.
Cirrhotic cardiomyopathy is a syndrome of depressed cardiac function in patients with cirrhosis. We aimed to review the historical background, pathophysiology and pathogenesis, diagnostic definitions, clinical relevance, and management of this syndrome.
An inflammatory phenotype underlies the pathogenesis: gut bacterial translocation with endotoxemia stimulates cytokines and cardiodepressant factors, such as nitric oxide and endocannabinoids. Cardiomyocyte plasma membrane biochemical and biophysical changes also play a pathogenic role. These factors lead to impaired beta-adrenergic function. Proposed new echocardiographic criteria for the diagnosis of cirrhotic cardiomyopathy include systolic global longitudinal strain and indices of diastolic dysfunction. Cardiac dysfunction participates in the pathogenesis of hepatorenal syndrome and increased morbidity/mortality of cirrhotic patients to hemorrhage, infection, and surgery, including liver transplantation. There is no specific treatment, although β-adrenergic blockade and supportive management have been proposed, but it needs further study. Cirrhotic cardiomyopathy is a clinically relevant syndrome afflicting patients with established cirrhosis. Optimum management remains unclear, and further study is needed in this area.
肝硬化心肌病是肝硬化患者心脏功能降低的综合征。我们旨在综述该综合征的历史背景、病理生理学和发病机制、诊断定义、临床相关性和处理。
炎症表型是发病机制的基础:肠道细菌易位伴内毒素血症刺激细胞因子和心肌抑制因子,如一氧化氮和内源性大麻素。心肌细胞膜生化和生物物理变化也起致病作用。这些因素导致β-肾上腺素能功能受损。提出了用于诊断肝硬化心肌病的新超声心动图标准,包括收缩期整体纵向应变和舒张功能障碍指数。心脏功能障碍参与肝肾综合征的发病机制,并增加肝硬化患者出血、感染和手术(包括肝移植)的发病率/死亡率。目前尚无特异性治疗方法,虽然提出了β-肾上腺素能阻滞剂和支持治疗,但仍需进一步研究。肝硬化心肌病是影响已确诊肝硬化患者的一种临床相关综合征。最佳治疗方法仍不清楚,该领域需要进一步研究。