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[Congestive (cardiac) cirrhosis]
T Sekiyama1, T Nagano, T Aramaki
11st Department of Internal Medicine, Nippon Medical School.
Insights
Cardiac cirrhosis, a rare condition, is now less common due to fewer valvular diseases. Cardiomyopathy is an increasing cause of liver congestion, leading to hepatocellular hypoxia and difficult clinical diagnosis.
Area of Science:
- Cardiology
- Hepatology
- Pathophysiology
Context:
- Cardiac cirrhosis incidence has declined significantly over decades.
- Cardiomyopathy is an increasingly common cause of liver congestion, replacing valvular disease.
- Congestive heart failure involves forward and backward failure, both causing hepatocellular hypoxia.
Purpose:
- To review the changing etiology and pathophysiology of cardiac cirrhosis.
- To highlight the diagnostic challenges of cardiac cirrhosis.
- To correlate clinical indicators with cardiac dysfunction.
Summary:
- True cardiac cirrhosis is now rare, with cardiomyopathy being a more frequent cause of liver congestion.
- Hepatocellular hypoxia results from both decreased hepatic blood flow (forward failure) and liver congestion (backward failure).
- Elevated serum transaminases and bilirubin correlate with reduced cardiac output and increased venous pressure, yet clinical diagnosis remains difficult.
Impact:
- Understanding the shift in cardiac cirrhosis etiology aids in better diagnosis and management.
- Recognizing the link between heart failure and liver dysfunction is crucial for patient care.
- Highlights the need for improved diagnostic tools for cardiac cirrhosis.
Abstract:
As the incidence of cardiac cirrhosis at autopsy today is much lower than that from decades ago, true cardiac cirrhosis is a rare finding. With the decline in incidence of valvular disease, cardiomyopathy, in the etiology of congested liver, has increased. The pathophysiology of congestive heart failure consists of two components: forward failure with decreased hepatic blood flow and backward failure with congestive liver. Both lead to hepatocellular hypoxia. Increased serum transaminases and serum bilirubin correlate with reduction in cardiac output and elevation of venous pressure. Even when cardiac cirrhosis develops, it is difficult to diagnose clinically.