Is it normal for the anterior wall of the left ventricle to be 4mm thick?

The anterior wall of the left ventricle of 4mm is on the thin side.
The normal thickness of the left ventricular wall is 8~11mm. The thinness of the ventricular wall is mostly caused by disease factors, which is reflected in the contractility of the myocardium and the cardiac function, and the specific situation needs to be determined according to the clinical manifestations and relevant examinations. For example, high intraventricular pressure or ischemic necrosis of the myocardium can lead to thinning of the ventricular wall.
Insufficient closure of the valves in rheumatic heart disease, as well as left-to-right or right-to-left shunts caused by congenital heart disease, can lead to enlargement of the left or right ventricle and thinning of the ventricular wall at a certain stage of development. Thinning of the ventricular walls may lead to weakened contraction of the heart muscle and reduced heart function.
The contraction of the heart depends on the thickness of the ventricular walls, and the thicker the ventricular walls are within the normal range, the stronger the contraction. When the ventricular walls become thin, the contractility of the heart muscle is significantly reduced. Enlarged ventricular chambers may lead to reduced ejection of blood from the heart, affecting the heart’s function and leading to inadequate blood and oxygen supply to tissues throughout the body.
When ventricular wall thinning occurs, you should actively seek medical treatment, improve ECG, cardiac ultrasound and other examinations to clarify the cause of the disease and then timely treatment, and if necessary, feasible surgical treatment.