Congestive hepatopathy: the role of the radiologist in the diagnosis

Congestive Hepatopathy Diagnosed by Venous Excess Ultrasound Score

Accurate and rapid detection of venous organ congestion, especially congestive hepatopathy, is essential to reduce morbidity and mortality. The Venous Excess Ultrasound Score is an emerging point-of-care ultrasound examination that can grade severity of venous organ congestion using spectral Doppler evaluation of the hepatic, portal, and intrarenal veins, but its utility in congestive hepatopathy is unknown. We report a case of acute liver injury where Venous Excess Ultrasound Score supported a diagnosis of congestive hepatopathy and guided management, leading to a favorable outcome.

Congestive Hepatopathy: A Review of the Literature

Congestive hepatopathy (CH), stemming from compromised hepatic venous flow or heightened intrahepatic pressure, represents a significant consequence of cardiovascular conditions like congestive heart failure (CHF). This review of literature encapsulates the core aspects of this condition, characterized by hepatic congestion, cellular injury, and impaired liver function. Diagnostic challenges arise due to symptoms mirroring primary liver diseases. Management revolves around addressing the underlying cause and mitigating fluid retention. This review of literature provides a snapshot of CH's complexity, emphasizing its clinical implications and the need for comprehensive understanding in clinical practice.

Liver and heart failure: an ultrasound relationship

Liver and heart are anatomically and patho-physiologically related. In heart failure (HF) the increased right atrial pressure and volume overload cause histological changes in hepatocytes, leading to a condition known as "congestive hepatopathy" (CH), with consequent variations in liver functioning and ultrasound (US) findings. CH has specifical US findings especially regarding venous vessels aspect, easily detecting by gray-scale study, but many others can be distinguished by Doppler analysis. Usually, hepatic veins look enlarged and hypocollassing, together with signs of portal hypertension (hepatomegaly, ascites, splenomegaly, porto-systemic collaterals). Typically, in CH Doppler findings regard alterations in venous vessel flow and arterial resistance (venous system hyperpulsatility, reduced velocity flow, high resistance index in hepatic arterial Doppler spectrum). Sometimes CH and other primary hepatopathy can coexist, and therefore some of the expected variations may not manifest: it allows suspecting an unknown underlying liver disease. At last, US technologies of more recent applications, even if not routinely used, allow investigating additional aspects such as elastography that detects changes in liver elasticity or contrastographic US, able to show differences in hepatic venous opacification. However, most of these US signs are not pathognomonic, and therefore a multidisciplinary clinical reasoning must not be lacking. The aim of the present review is to easily provide US signs of liver alterations in HF, in particular right heart failure with volume overload, suggesting including liver US in instrumental diagnosis and therapeutic monitoring of HF.

Striking Elevations in Aminotransferases in a Case of Congestive Hepatopathy Without Concurrent Hypotension

Congestive hepatopathy results from passive venous congestion often in the setting of right heart failure. Injury to the liver due to congestion is often asymptomatic and may be difficult to recognize and diagnose. The degree of elevations in aminotransferases varies in cases of congestive hepatopathy but usually stays within two to three times the upper limit of normal. Here, we report an interesting case of congestive hepatopathy that presented with striking elevations of aminotransferases in the 2000s international units/liter a few days after admission without concurrent hypotension.

Congestive Hepatopathy

Liver disease resulting from heart failure (HF) has generally been referred as “cardiac hepatopathy”. One of its main forms is congestive hepatopathy (CH), which results from passive venous congestion in the setting of chronic right-sided HF. The current spectrum of CH differs from earlier reports with HF, due to ischemic cardiomyopathy and congenital heart disease having surpassed rheumatic valvular disease. The chronic passive congestion leads to sinusoidal hypertension, centrilobular fibrosis, and ultimately, cirrhosis (“cardiac cirrhosis”) and hepatocellular carcinoma after several decades of ongoing injury. Contrary to primary liver diseases, in CH, inflammation seems to play no role in the progression of liver fibrosis, bridging fibrosis occurs between central veins to produce a “reversed lobulation” pattern and the performance of non-invasive diagnostic tests of liver fibrosis is poor. Although the clinical picture and prognosis is usually dominated by the underlying heart condition, the improved long-term survival of cardiac patients due to advances in medical and surgical treatments are responsible for the increased number of liver complications in this setting. Eventually, liver disease could become as clinically relevant as cardiac disease and further complicate its management.