HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Personal Folders Download to citation manager Author home page(s): Wolfgang A Goetz Carlos MG Duran Permission Requests Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Goetz, W. A Articles by Duran, C. M. Search for Related Content PubMed PubMed Citation Articles by Goetz, W. A Articles by Duran, C. M. Related Collections Valve disease

Kinking of the Atrioventricular Plane During the Cardiac Cycle

The International Heart Institute of Montana Foundation, St. Patrick Hospital and Health Sciences Center, The University of Montana Missoula, USA

For reprint information contact: Carlos Duran, MD Tel: 1 406 329 5668 Fax: 1 406 329 5880 Email: Cduran{at}saintpatrick.org, The International Heart Institute of Montana, 554 West Broadway, Missoula, MT 59802, USA.

Systolic descent of the atrioventricular plane toward the relatively stationary left ventricular apex is well described. As the atrioventricular plane includes two separate valvular units, systolic atrioventricular plane displacement should not be homogenous. In 6 sheep, sonomicrometric crystals were implanted at the base of the right coronary sinus, anterolateral and posteromedial fibrous trigones, posterior mitral annulus, left ventricular apex, and the tips of the anterior and posterior mitral leaflets. The aortomitral angle was calculated and related to simultaneous left ventricular and aortic pressures and mitral valve movement. The aortomitral angle was largest at end diastole (150.73° ± 15.48°). During isovolumic contraction, it narrowed rapidly to 144.90° ± 16.64°, followed by a slower narrowing during ejection until it reached its smallest angle at end systole (139.66° ± 16.78°). During isovolumic relaxation, the aortomitral angle increased to 143.66° ± 16.02° at the beginning of diastole. During the first third of diastole, it narrowed again to 141° ± 16.24° before re-expanding to maximum at end diastole. During systole, the atrioventricular plane descended non-homogeneously toward the apex, with kinking at the hinge between the aortic and mitral annulus plane. This deformation of the atrioventricular plane has relevance in valve surgery.

This article has been cited by other articles:

				R. Lange, T. Guenther, B. Kiefer, C. Noebauer, W. Goetz, R. Busch, P. Tassani-Prell, B. Voss, and R. Bauernschmitt Mitral valve repair with the new semirigid partial Colvin-Galloway Future annuloplasty band. J. Thorac. Cardiovasc. Surg., May 1, 2008; 135(5): 1087 - 1093.e4. [Abstract] [Full Text] [PDF]

				A. A. Degandt, P. A. Weber, H. A. Saber, and C. M.G. Duran Mitral Valve Basal Chordae: Comparative Anatomy and Terminology Ann. Thorac. Surg., October 1, 2007; 84(4): 1250 - 1255. [Abstract] [Full Text] [PDF]