PMID: 18427646Apr 23, 2008Paper

Evaluation of left ventricular long-axis function in cases of rheumatic pure mitral stenosis with atrial fibrillation.

Texas Heart Institute Journal
Sule BuyukkayaHuseyin Senocak

Abstract

Using tissue Doppler echocardiography, we evaluated left ventricular long-axis function in 65 mitral stenosis patients, 30 of whom were in sinus rhythm and 35 of whom were in chronic atrial fibrillation. There were 35 healthy control subjects. Conventional echocardiography was used to evaluate left ventricular diameters, left atrial diameters, left ventricular ejection fractions, and mitral valve areas. Tissue Doppler echocardiography was used to evaluate isovolumetric contraction time (ICT), isovolumetric relaxation time (IRT), ejection time (ET), and peak systolic myocardial velocities. The myocardial performance index was calculated with the formula (ICT+IRT)/ET. Mean and segmental left ventricular IRT and ICT values were significantly longer in mitral stenosis patients than in control subjects, but were similar in the sinus rhythm and atrial fibrillation subgroups. Ejection times were significantly lower in the mitral stenosis with atrial fibrillation group than in the mitral stenosis with sinus rhythm and control groups (P<0.001), but were similar when the sinus rhythm group was compared with the control group (P<0.05). Myocardial performance index values were higher in mitral stenosis patients, significantly so in those w...Continue Reading

Related Concepts

Related Feeds

Atrial Filbrillation

Atrial fibrillation refers to the abnormal heart rhythm characterized by rapid and irregular beating of the atria. Here is the latest research.

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.