Related Experiment Video
Updated: Jun 3, 2026
07:10
Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy
Published on: June 18, 2020
Hepatic vein waveforms in liver cirrhosis re-evaluated
Sudhamshu K C1, Dilip Sharma, Saroj Prasad Chataut
1National Academy of Medical Sciences, Kathmandu, Nepal.
Hepatology International
|March 29, 2011
Summary
Changes in hepatic vein Doppler waveforms in liver cirrhosis patients may indicate altered hepatic blood flow, not necessarily liver dysfunction. Flat waveforms showed no diagnostic value, suggesting hemodynamic changes are key.
Area of Science:
- Hepatology
- Vascular Ultrasound
- Medical Imaging
Background:
- Doppler waveforms of hepatic veins are studied in cirrhotic liver disease.
- Dampening of phasic oscillations is postulated to correlate with worsening liver function.
Purpose of the Study:
- To reevaluate the significance of hepatic vein Doppler waveforms in cirrhotic patients.
- To correlate waveform patterns with hepatic blood flow parameters.
Main Methods:
- 135 liver cirrhosis patients and 60 non-cirrhotic controls were enrolled.
- Doppler waveforms of the right hepatic vein were recorded.
- Portal trunk, right portal vein, and proper hepatic artery flow volumes were measured.
Main Results:
- Hepatic vein waveforms were classified as triphasic, biphasic, or flat (rare, 3%).
- No correlation was found between liver dysfunction and waveform patterns.
- Elevated inflow, especially to the right lobe, was observed with non-triphasic waveforms.
Conclusions:
- Flat hepatic vein waveforms lack diagnostic value in liver cirrhosis.
- Hemodynamic changes, reflected in hepatic blood flow, appear to be a more plausible cause for waveform alterations than liver dysfunction alone.
Related Concept Videos
01:22Portal Hypertension
Portal hypertension is an increase in blood pressure within the portal venous system. Normally, this pressure is less than 5 mmHg. It is considered clinically significant when it rises above 10 mmHg. At this threshold, complications from altered blood flow and venous congestion emerge.EtiologyPortal hypertension arises from conditions that impede blood flow through the liver. The most common cause is cirrhosis, in which chronic liver injury leads to fibrotic scarring. This fibrosis narrows or...
01:24Cirrhosis II: Pathophysiology
Cirrhosis is a progressive chronic liver injury caused by prolonged inflammation, excessive fibrotic remodeling, and impaired regeneration. Over time, repeated hepatic insults disrupt the liver’s architecture and function, leading to reduced blood flow, impaired bile drainage, and diminished metabolic capacity.Pathophysiology of cirrhosisCirrhosis arises from three main responses to chronic liver damage: inflammation, immune activation, and hepatocyte death. These processes lead to structural...
01:22Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess the...
01:21Hepatic Portal System
The hepatic portal system, a critical part of our circulatory framework, transports nutrient-laden, deoxygenated blood from the gastrointestinal tract and spleen to the liver. This ingenious system plays an indispensable role in maintaining our body's metabolic equilibrium.
At its core, the hepatic portal vein is the result of a confluence of the superior and inferior mesenteric veins along with the splenic vein. Each of these veins has a unique role. The superior mesenteric vein is responsible...
At its core, the hepatic portal vein is the result of a confluence of the superior and inferior mesenteric veins along with the splenic vein. Each of these veins has a unique role. The superior mesenteric vein is responsible...
01:28Esophageal Varices-II: Clinical Features and Management
Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
01:26Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow
Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug binding...