What does "small heart" mean?
May 11, 2023
Source: Cainiu Health
Dr. Tian Hongbo
Introduction
A small heart generally refers to a cardiothoracic ratio less than 0.4 observed during a chest X-ray examination. Small heart syndrome is a congenital developmental disorder for which there is currently no specific treatment. However, symptoms can be alleviated through appropriate physical exercise. Regular and suitable exercise helps enhance myocardial contractility, reduce the risk of pulmonary infections, and prevent discomfort.
Generally, a small heart refers to a cardiothoracic ratio less than 0.4 observed during a chest X-ray examination. The details are as follows:
Due to individual differences, heart size varies among people. In healthy adults, the normal cardiothoracic ratio usually does not exceed 0.52; a ratio above 0.52 typically indicates an enlarged heart, while a ratio below 0.4 suggests a smaller-than-normal heart. If a small heart is detected during a physical examination but cardiac function is normal and no discomfort symptoms are present, it generally has no impact on health. However, if symptoms such as chest tightness, chest pain, palpitations, dizziness, or shortness of breath occur, this condition is clinically referred to as "small heart syndrome." Small heart syndrome is a congenital developmental disorder for which there is currently no specific treatment. However, symptoms can be alleviated through appropriate physical exercise. Regular exercise helps enhance myocardial contractility, reduce the risk of pulmonary infections, and prevent uncomfortable symptoms.
In daily life, individuals should engage in regular physical activity to improve overall fitness and boost immunity. If any discomfort arises, prompt medical consultation is recommended to avoid delays in diagnosis and treatment.
