Atrial fibrillation in mitral stenosis and its correlation with age, sex and clinical symptoms

The objective of the study was to calculate the frequency of atrial fibrillation of MS and its correlation with age, sex and clinical symptoms. A prospective descriptive study. Mayo Hospital and Punjab Institute of Cardiology, Lahore. 112 patients of mitral stenosis were investigated with an ECG and an echocardiography to confirm mitral stenosis and to measure anteroposterior left atrial dimensions on M-mode. All patients who were suffering from AF due to causes other than mitral stenosis were excluded. The significance of findings were tested through standard "t"test. Atrial fibrillation is more in female patient and has a linear correlation with age. More common symptoms of shortness of breath followed by palpitation

Frequency of atrial fibrillation in mitral stenosis and its correlation with left atrial size

Chronic rheumatic heart disease is much the commonest cause of mitral stenosis. Incidence of rheumatic MS parallels that of acute rheumatic fever. Atrial fibrillation usually develops in the presence of pre-existing ECG evidence of left atrial enlargement and is related to the size of the chamber, the extend of fibrosis of the left atrial myocardium, the duration of the atriomegaly and the age of the patient. Descriptive. Mayo Hospital, Lahore and Punjab Institute of Cardiology, Lahore. Convenient. 129 consecutive cases of predominant mitral stenosis. 112 cases included in the final workup. The frequency of AF in MS in this study was calculated as 25.9%. The correlation between AF and left atrial size was significant [p = 0.000]. This was plotted on the scattergram [Figure No. 1], which shows a steep rise in the frequency of AF beyond a left atrial size of 70 mm. Frequency of AF in patients with MS is 25.9%. The correlation between AF in MS and left atrial size is significant [p = 0.000]