March 1, 1983CirculationOpen Access

Diastolic "locking" of the mitral valve: the importance of atrial systole and intraventricular volume.

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Population

6 dogs with surgically induced atrioventricular block

Design

Preclinical

Authors

DDD. DavidNational Institute of Health Dr. Ricardo Jorge EMEric L. MichelsonRutgers, The State University of New Jersey MNMasahito NaitoBrigham and Women's Hospital

Discussion

Member takes

Implication

Diastolic mitral locking requires atrial systole and volume in animals; leaves open applicability to human valve function or arrhythmias.

Structured PICO

Population

6 dogs with surgically induced atrioventricular block

Intervention

Programmed pacing (atrial extrasystoles at progressively increasing coupling intervals during prolonged pauses in ventricular pacing, as well as induction of atrial standstill and atrial fibrillation)

Outcome

Mitral reopening time (MRT), calculated left ventricular volume (LVV) at the end of the MRT, and occurrence of diastolic mitral valve lockingsurrogate

Diastolic locking of the mitral valve is a physiological phenomenon dependent on both active atrial systole and sufficient intraventricular volume.

Cite This Study

David et al. (1983) studied this question.

synapsesocial.com/papers/6a718b493ce530166bc31fb6 https://doi.org/10.1161/01.cir.67.3.640

Topics

Mitral valve intervention Atrial fibrillation Echocardiography Persistent AF management

View Full Paper

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Bookmark

Diastolic "locking" of the mitral valve: the importance of atrial systole and intraventricular volume.

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Topics

Diastolic "locking" of the mitral valve: the importance of atrial systole and intraventricular volume.

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Also Consider

Topics

Also Consider