Why the study?
To identify resting echocardiographic parameters that can detect asymptomatic or mildly symptomatic primary mitral regurgitation patients requiring exercise stress echocardiography to determine surgical suitability.
Does increased resting LAVI detect asymptomatic or mildly symptomatic patients with primary moderate/severe mitral regurgitation who require exercise stress echocardiography?
Does increased resting LAVI detect asymptomatic or mildly symptomatic patients with primary moderate/severe mitral regurgitation who require exercise stress echocardiography?
Increased resting left atrial volume index (LAVI) can identify asymptomatic or mildly symptomatic patients with primary moderate/severe mitral regurgitation who may benefit from exercise stress echocardiography to determine surgical suitability.
Resting echocardiographic parameters may help triage asymptomatic patients with primary MR for exercise testing; leaves open.
Objectives: We aimed to identify which resting echocardiographic parameters can detect asymptomatic or mildly symptomatic patients with primary mitral regurgitation (MR) who require exercise stress echocardiography (ESE) to determine their suitability for surgery. Methods: We examined 56 consecutive patients with primary moderate/severe MR who underwent ergometer-based ESE. Patients who met the surgical indications at rest were excluded. Eligible patients were divided into Group I (pulmonary artery systolic pressure [PASP] during exercise >60 mmHg; n=11) and Group II (PASP during exercise ≤60 mmHg; n=30). Conclusions: In asymptomatic or mildly symptomatic patients with primary moderate/severe MR, increased resting LAVI indicates the requirement for ESE, even without LV dilatation.
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Kawada et al. (2023) studied this question.
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