Abstract
The assessment of left ventricular (LV) function in the setting of
mitral stenosis (MS) has been critically examined for decades. Accurate
assessment of aberrations in diastolic function is important as these
subjects often present with signs and symptoms of heart failure and
pulmonary congestion that cannot be solely explained by the severity of
mechanical obstruction. Echocardiographic evaluation of diastolic
dysfunction includes an evaluation of reduced LV compliance, diminished
restoring forces and enhanced stiffness, which are challenging in the
setting of MS owing to altered hemodynamic loading. Conventional
echocardiographic and Doppler measures offer limited information. Novel
assessments employing speckle tracking echocardiography are relatively
less studied. A more comprehensive assessment including clinical
evaluation, identification of concomitant disorders and comorbidities is
particularly warranted in older subjects with degenerative MS to suspect
diastolic dysfunction and arrive at optimal medical therapy or
intervention. This review provides an overview of etiological,
pathophysiological, echocardiographic and invasive assessment of
diastolic dysfunction in the setting of MS, with specific focus on
strengths and limitations of available echocardiographic and Doppler
techniques.