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Titolo:
DIASTOLIC SUCTION IN THE HUMAN VENTRICLE - OBSERVATION DURING BALLOONMITRAL VALVULOPLASTY WITH A SINGLE BALLOON
Autore:
NAKATANI S; BEPPU S; NAGATA S; ISHIKURA F; TAMAI J; YAMAGISHI M; OHMORI F; KIMURA K; TAKAMIYA M; MIYATAKE K;
Indirizzi:
CLEVELAND CLIN FDN,DEPT CARDIOL,DESK F 15,9500 EUCLID AVE CLEVELAND OH 44195 NATL CARDIOVASC CTR,CARDIOL DIV MED SUITA OSAKA 565 JAPAN NATL CARDIOVASC CTR,RES INST SUITA OSAKA 565 JAPAN NATL CARDIOVASC CTR,DEPT RADIOL SUITA OSAKA 565 JAPAN
Titolo Testata:
The American heart journal
fascicolo: 1, volume: 127, anno: 1994,
pagine: 143 - 147
SICI:
0002-8703(1994)127:1<143:DSITHV>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
PRESSURE; HEART; STENOSIS; RELAXATION; LOAD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
S. Nakatani et al., "DIASTOLIC SUCTION IN THE HUMAN VENTRICLE - OBSERVATION DURING BALLOONMITRAL VALVULOPLASTY WITH A SINGLE BALLOON", The American heart journal, 127(1), 1994, pp. 143-147

Abstract

Diastolic suction has been demonstrated experimentally as a ventricular negative pressure when the ventricle is allowed to relax completelyin the absence of filling, but it has not been extensively studied inthe in vivo human heart. In balloon mitral valvuloplasty with a single balloon, the mitral orifice is occluded and inflow is considered to be completely obstructed during a balloon inflation. To demonstrate diastolic suction in the human ventricle, we measured left ventricular pressure during valvuloplasty with a high-fidelity catheter tip manometer in 17 patients. Left ventricular pressure fell below zero during a balloon inflation in all patients (-2 to -12 mm Hg). The peak negativediastolic pressure showed significant correlations with end-systolic volume index (r = 0.53, p = 0.03) and with the ejection fraction (r - 0.80, p = 0.0001). Thus diastolic suction was demonstrated in the human beating heart, and the sucking effect was potent in the heart with small end-systolic volume and high-ejection fraction.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 18:08:04