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Tricuspid annulus motion and mitral annulus motion: anatomical intimacy causing a good correlation?
Department of Clinical Physiology, Karlskoga Hospital, Karlskoga, Sweden; Department of Clinical Physiology, Örebro University Hospital, Örebro, Sweden.
Department of Clinical Physiology, Örebro University Hospital, Örebro, Sweden.
Department of Clinical Physiology, Örebro University Hospital, Örebro, Sweden.
2005 (English)In: Experimental and clinical cardiology, ISSN 1205-6626, Vol. 10, no 2, 111-5 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Echocardiographic evaluation of the heart and its function, especially left ventricular systolic function, has great clinical importance. Systolic function can be measured using several methods, such as the amplitude of motion of the left atrioventricular plane (mitral annulus motion [MAM]) toward the apex during systole. Similarly, right ventricular systolic function can be measured using the motion of the right atrioventricular plane (tricuspid annulus motion [TAM]) toward the apex during systole.

OBJECTIVES: Because the mitral and tricuspid annuli are situated close to each other in the fibrous skeleton between both ventricles and atria, one might think that a decrease in the amplitude of MAM would be followed by a decrease in the amplitude of TAM. The present study was developed to determinine if this anatomical intimacy causes a good correlation between the amplitudes of TAM and MAM.

METHODS: Nineteen healthy subjects and 103 consecutive patients were included in the study and examined using echocardiography. The amplitudes of TAM and MAM were measured and the correlation between the amplitudes was calculated.

RESULTS: In the 103 consecutive patients, a significant but relatively weak positive correlation was found between TAM and MAM amplitudes (Pearson's correlation coefficient [r]=0.58; P<0.001). In the 19 healthy subjects, no significant correlation was found.

CONCLUSIONS: Despite the anatomical intimacy of the annuli, the correlation between the amplitudes of TAM and MAM in consecutive patients was rather weak, and there was no correlation in healthy subjects. These findings could be due to anatomical and physiological differences between the right and left ventricles.

Place, publisher, year, edition, pages
2005. Vol. 10, no 2, 111-5 p.
Keyword [en]
echocardiography, heart, left ventricle, myocardium, right ventricle
National Category
Medical and Health Sciences Cardiac and Cardiovascular Systems
Research subject
Cardiology
Identifiers
URN: urn:nbn:se:oru:diva-38865PubMedID: 19641670Scopus ID: 2-s2.0-22144460565OAI: oai:DiVA.org:oru-38865DiVA: diva2:764919
Available from: 2014-11-20 Created: 2014-11-20 Last updated: 2017-10-17Bibliographically approved

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