Left ventricular wall thickening is literally the relative hypertrophy of the muscle layer of the left ventricular wall, and the normal range of left ventricular wall thickness in a normal adult is 6 to 10 mm.
Left ventricular wall thickening is mostly seen in patients with long-term hypertension have, a few people may be because of heart valve disease, cardiomyopathy, etc..
Normal human heart is divided into right and left atria and right and left ventricles four heart chambers, overall, the atrium myocardium thickness difference is not big, but because the left ventricle to withstand the arterial blood pressure of the body circulation is higher, the right ventricle to withstand the pulmonary artery of the blood pressure is lower, so the left ventricular wall thickness is roughly three times the thickness of the right ventricular wall.
In most people, the myocardium is in a compensatory phase due to the effects of long-term hypertensive disease and will adaptively hypertrophy.
A few people also experience compensatory thickening due to long-term aortic stenosis and mitral valve closure insufficiency, which result in increased burden on the left ventricle.
Others may have left ventricular wall thickening or left ventricular outflow tract myocardial hypertrophy because of hypertrophic cardiomyopathy.