What are the three major manifestations of right heart failure?
Nov 08, 2024
Source: Cainiu Health
Dr. Tian Hongbo
Introduction
In general, right heart failure may present symptoms such as shortness of breath, poor appetite, abdominal distension, liver enlargement, and swelling of the lower extremities. If discomfort symptoms occur, it is recommended to seek timely medical evaluation and treatment at a qualified hospital. Right heart failure may lead to increased pressure in the right atrium and superior vena cava, insufficient return of blood to the heart, reduced pulmonary blood flow, and consequently impair the ability of venous blood to become oxygenated arterial blood through the lungs.
Generally, right heart failure may present symptoms such as shortness of breath, poor appetite, abdominal distension, liver enlargement, and leg edema. If discomfort occurs, timely treatment at a regular hospital is recommended. Detailed explanations are as follows:
1. Shortness of breath: Right heart failure may cause elevated pressure in the right atrium and superior vena cava, insufficient return of blood to the heart, reduced pulmonary blood flow, and hindered conversion of venous blood into arterial blood via oxygenation in the lungs. This can lead to tissue hypoxia throughout the body and consequently cause shortness of breath.
2. Poor appetite: In right heart failure, weakened ejection capability increases right ventricular pressure during diastole, causing blood stasis in the right atrium and superior and inferior vena cava, and reducing venous blood return. This impairs venous return via the superior and inferior vena cava. The superior mesenteric vein, inferior mesenteric vein, left gastric vein, and right gastric vein all drain into the hepatic portal vein and subsequently into the inferior vena cava. When this process is impeded, congestion in the gastrointestinal tract occurs, thus affecting appetite.
3. Abdominal distension: Congestion in the gastrointestinal tract caused by right heart failure not only leads to poor appetite but may also cause abdominal distension. This is because congestion slows gastrointestinal motility, weakens digestive function, and prolongs the retention time of food in the gastrointestinal tract, thereby causing abdominal distension.
4. Liver enlargement: Systemic venous congestion caused by right heart failure may lead to liver congestion and enlargement. Hepatic congestion causes the liver capsule to expand, resulting in symptoms such as fullness in the upper right abdomen and tenderness in the liver area. Long-term congestion may also impair liver function, causing elevated blood urea nitrogen levels, proteinuria, and other manifestations.
5. Leg edema: In right heart failure, impaired cardiac contraction and diastolic function prevent effective blood pumping, leading to systemic venous congestion. When venous return in the lower limbs is obstructed, pressure in the veins increases, causing fluid to leak from blood vessels into interstitial spaces, resulting in leg edema.
After experiencing discomfort, patients may follow medical advice to use medications such as aspirin enteric-coated tablets, furosemide tablets, and sodium nitroprusside injection for symptom improvement. In daily life, it is recommended to maintain a positive mindset, avoid spicy, irritating, and greasy foods, rest adequately, and develop healthy lifestyle habits.
