Echocardiographic assessment of left ventricular outflow width in the selection of mitral valve prosthesis

Assessment of left ventricular outflow tract (LVO) width was made from preoperative mitral valve echocardiograms in 26 patients with pure or predominant mitral stenosis who later had valve replacement. LVO width was measured as the minimum space between the ventricular septal echo and the anterior m...

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Bibliographic Details
Published in:Circulation (New York, N.Y.) N.Y.), 1973-12, Vol.48 (6), p.1208-1214
Main Authors: Nanda, N C, Gramiak, R, Shah, P M, DeWeese, J A, Mahoney, E B
Format: Article
Language:English
Subjects:
Adult
Aged
Autopsy
Cardiac Output
Echocardiography
Female
Heart Valve Prosthesis
Heart Ventricles - anatomy & histology
Humans
Male
Middle Aged
Mitral Valve - surgery
Mitral Valve Stenosis - surgery
Prosthesis Design
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Summary:Assessment of left ventricular outflow tract (LVO) width was made from preoperative mitral valve echocardiograms in 26 patients with pure or predominant mitral stenosis who later had valve replacement. LVO width was measured as the minimum space between the ventricular septal echo and the anterior mitral leaflet at beginning systole. Prosthesis encroachment on LVO (PE) was estimated by comparing the length of the poppet expected to protrude into the LVO in systole with LVO width determined by ultrasound (poppet length/LVO width x 100). Group 1 (12 patients) had normal LVO widths (≥20 mm) and received Starr-Edwards prostheses. There was one in-hospital death in this group. Group 2 (seven patients) had narrow LVO (
ISSN:0009-7322
1524-4539
DOI:10.1161/01.CIR.48.6.1208