Pulsus and electrical alternans due to the presence of a mitral caged ball-valve prosthesis

Almost 2 years after a successful mitral valve replacement with a ball-valve prosthesis, a 54-year-old patient was found to have mechanical and electrical alternans. Evidence is presented to suggest that strong left ventricular contraction and, therefore, a small early diastolic chamber size can int...

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Veröffentlicht in:The American heart journal 1967, Vol.73 (1), p.110-114
Hauptverfasser: Weber, Donald J., Schaffer, Abraham I., O'Connor, Robert A.
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container_title The American heart journal
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creator Weber, Donald J.
Schaffer, Abraham I.
O'Connor, Robert A.
description Almost 2 years after a successful mitral valve replacement with a ball-valve prosthesis, a 54-year-old patient was found to have mechanical and electrical alternans. Evidence is presented to suggest that strong left ventricular contraction and, therefore, a small early diastolic chamber size can interfere with the functioning of the ball-valve and produce pulsus alternans. This is the first report of such a case.
doi_str_mv 10.1016/0002-8703(67)90315-8
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source MEDLINE; Elsevier ScienceDirect Journals
subjects Heart Valve Prosthesis
Humans
Male
Middle Aged
Mitral Valve - surgery
Phonocardiography
Vectorcardiography
title Pulsus and electrical alternans due to the presence of a mitral caged ball-valve prosthesis
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