The correlation between Doppler data and effort capacity in mitral stenosis.

Full Abstract

The data concerning the relation between mitral valve area (MVA), estimated invasively or by 2 D-echo and effort capacity in mitral stenosis (MS) are still controversial. Consequently we have studied the same relation, using the Doppler indices. Methods: 19 patients with MS were submitted to a Doppler examination--MVA, pressure half time (PHT), mean pressure gradient (MPG)--and to a symptoms limited exercise testing on cycloergometer--effort intensity (Watts, METs) functional aerobic impairment (FAI), myocardial aerobic impairment (MAI). The "r" correlation index between these parameters was calculated. The results show no significant correlation between Doppler estimated severity of mitral stenosis and the effort capacity of the patients, even if a weak negative correlation ("r" = - 0.32) is noted between effort intensity and MPG and a weak positive correlation ("r" = + 0.41) between FAI and PHT. The conclusion is that effort capacity of patients with mitral stenosis cannot predict the severity of the disease which is to be established through other methods.

Author information

Author/s: Zdrenghea, D (D); Vlad, C (C); Predescu, D (D); Timis, D (D);

Affiliation: Department of Cardiology, Rehabilitation Hospital, Cluj-Napoca, Romania.

Journal and publication information

Publication Type: Comparative Study; Journal Article

Journal: Romanian journal of internal medicine = Revue roumaine de médecine interne (Rom J Intern Med), published in ROMANIA. (Language: eng)

Reference: -1995 Jul-Dec; vol 33 (issue 3-4) : pp 189-93

Dates: Created 1996/07/22; Completed 1996/07/22; Revised 2006/11/15;

PMID: 8646190, status: MEDLINE (last retrieved date: 2/18/2009)

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