Which type of valve stenosis is associated with left atrial enlargement and wide, notched P waves?

Mitral stenosis is characterized by the narrowing of the mitral valve opening, which impedes blood flow from the left atrium to the left ventricle during diastole. This obstruction leads to increased pressure in the left atrium, causing the chamber to enlarge over time. As a result, the electrical activity of the enlarged left atrium can cause changes in the electrocardiogram (ECG) readings, specifically producing wide, notched P waves. These findings are commonly associated with left atrial enlargement due to the increased workload and volume overload on the left atrium caused by mitral stenosis.

In contrast, other types of valve stenosis, such as aortic, tricuspid, and pulmonary stenosis, usually do not present with the same characteristics in the left atrium or lead to the same distinctive P wave morphology. Aortic stenosis primarily affects the left ventricle and may not significantly alter left atrial size. Tricuspid stenosis affects the right side of the heart and would typically not be connected to changes in the left atrial electrical activity. Pulmonary stenosis primarily involves the right ventricle and does not contribute to changes in the left atrial pressure or size. Thus, mitral