Relationship of Nonalcoholic Fatty Liver Disease and Heart Failure With Preserved Ejection Fraction

Background Patients with cirrhosis are at risk of developing cirrhotic cardiomyopathy. This syndrome is unique to cirrhosis and is generally defined as subnormal cardiac function in the absence of prior heart disease. There is no systematic or comprehensive review of cirrhotic cardiomyopathy to date. Aims To comprehensively review the literature on the definition, pathogenic mechanisms, diagnostic criteria, prevalence, management and influence on liver transplantation including reversibility of cirrhotic cardiomyopathy. Methods Electronic searches of the EMBASE, MEDLINE, EBM Reviews-Cochrane Central Register of Controlled Trials, EBM Reviews-Cochrane Database of Systematic Reviews and Google Scholar databases were conducted. MeSH terms focused on cirrhosis, cardiomyopathy, medication classes and epidemiology. Literature up to August 2020 was reviewed. Results New diagnostic criteria for the definition of cirrhotic cardiomyopathy have recently been published, consisting of systolic and diastolic dysfunction parameters as assessed by echocardiographic methods. The roles of electrocardiographic disturbances and biomarkers in the definition criteria remain unclear. Pathogenic mechanisms underlying cirrhotic cardiomyopathy are likely related to the inflammatory phenotype of cirrhosis. Prevalence rates of 26%-81% in cirrhotic patients are reported. Several medical therapies have been proposed, but none with clear evidence of efficacy. The presence of cirrhotic cardiomyopathy complicates the liver transplantation process with a higher risk of adverse cardiovascular events post-transplant. Complete reversibility of the syndrome after transplantation remains controversial but most studies suggest that it does not occur at least within the first post-operative year. Conclusions Cirrhotic cardiomyopathy is a clinically relevant syndrome that affects morbidity and mortality in patients with cirrhosis.

Review article: comprehensive analysis of cirrhotic cardiomyopathy.

Cirrhotic cardiomyopathy (CCM) is defined as systolic or diastolic dysfunction in the absence of prior heart disease or another identifiable cause in patients with cirrhosis, in whom it is an important determinant of outcome. Its underlying pathogenic/pathophysiological mechanisms are rooted in two distinct pathways: 1) factors associated with portal hypertension, hyperdynamic circulation, gut bacterial/endotoxin translocation and the resultant inflammatory phenotype; 2) hepatocellular insufficiency with altered synthesis or metabolism of substances such as proteins, lipids, carbohydrates, bile acids and hormones. Different criteria have been proposed to diagnose CCM; the first in 2005 by the World Congress of Gastroenterology, and more recently in 2019 by the Cirrhotic Cardiomyopathy Consortium. These criteria mainly utilised echocardiographic evaluation, with the latter refining the evaluation of diastolic function and integrating global longitudinal strain into the evaluation of systolic function, an important addition since the haemodynamic changes that occur in advanced cirrhosis may lead to overestimation of systolic function by left ventricular ejection fraction. Advances in cardiac imaging, such as cardiac magnetic resonance imaging and the incorporation of an exercise challenge, may help further refine the diagnosis of CCM. Over recent years, CCM has been shown to contribute to increased mortality and morbidity after major interventions, such as liver transplantation and transjugular intrahepatic portosystemic shunt insertion, and to play a pathophysiologic role in the genesis of hepatorenal syndrome. In this review, we discuss the pathogenesis/pathophysiology of CCM, its clinical implications, and the role of cardiac imaging modalities including MRI. We also compare diagnostic criteria and review the potential diagnostic role of electrocardiographic QT prolongation. At present, no definitive medical therapy exists, but some promising potential treatment strategies for CCM are reviewed. 

Cardiomyopathy in cirrhosis: From pathophysiology to clinical care

Cardiovascular events have a major impact on overall outcomes after liver transplantation. Today’s transplant patients are older than those in the past and therefore are more likely to have coexisting cardiac comorbidities. In addition, pathophysiologic effects of advanced liver disease on the circulatory system pose challenges in perioperative management. This review discusses important preoperative, intraoperative, and postoperative cardiac considerations in patients undergoing liver transplant. Today’s transplant patients are older and more likely to have cardiac comorbidities, and effects of advanced liver disease on the circulatory system pose challenges in perioperative management.

/pdf/cardiac-considerations-in-liver-transplantation-3mb23g2k.pdf

Cardiac considerations in liver transplantation

Diagnostic Criteria of Cirrhotic Cardiomyopathy: Out With the Old, in With the New?

BACKGROUND AND AIMS Recently published criteria by 2019 Cirrhotic Cardiomyopathy Consortium set a lower threshold for reduced ejection fraction to diagnose systolic dysfunction in cirrhotic patients, and stress testing was replaced by echocardiography strain imaging. The criteria to diagnose diastolic dysfunction are in general concordant with the 2016 ASE/EACVI guidelines and differ considerably from the 2005 Montreal recommendations. We aimed to assess the prevalence of cirrhotic cardiomyopathy according to different diagnostic criteria. METHODS Cirrhotic patients without another structural heart disease, arterial hypertension, portal vein thrombosis, HCC outside Milan criteria and presence of TIPS were enrolled. Speckle-tracking echocardiography was performed by EACVI certified investigators. RESULTS A total of 122 patients with cirrhosis fulfilled the inclusion criteria. Overall prevalence of cirrhotic cardiomyopathy was similar for 2005 Montreal and 2019 CCC: 67.2% vs 55.7% (P = .09); and significantly higher compared to 2009 ASE/EACVI criteria: 67.2% vs 35.2% (P < .0001) and 55.7% vs 35.2% (P = .002) respectively. Significantly more patients had diastolic dysfunction according to the 2005 Montreal compared to the 2009 ASE/EACVI and 2019 CCC criteria: 64.8% vs 32.8% (P < .0001) and 64.8% vs 7.4% (P < .0001). Systolic dysfunction was more frequently diagnosed according to 2019 CCC criteria compared to 2005 Montreal (53.3% vs 16.4%,P < .0001) or ASE/EACVI criteria (53.3% vs 4.9%,P < .0001). CONCLUSION Cirrhotic cardiomyopathy was present in around 60% of cirrhotic patients when applying the hepatological criteria. A considerably higher prevalence of systolic dysfunction according to the 2019 CCC criteria was observed. Long-term follow-up studies are needed to establish the validity of these criteria to predict clinically relevant outcomes.

The prevalence of cirrhotic cardiomyopathy according to different diagnostic criteria

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The prevalence of cirrhotic cardiomyopathy according to different diagnostic criteria