Atrial contraction is an important determinant of pulmonary venous flow

Gad Keren, Alan Bier, Jack Sherez, Dennis Miura, Deborah Keefe, Thierry LeJemtel

Research output: Contribution to journalArticlepeer-review

Abstract

Pulmonary venous flow has two phases (systolic and diastolic) in normal subjects when studied by pulsed Doppler echocardiography. Only one phase of pulmonary venous flow (diastolic) was observed in six patients without synchronous atrial contraction (four patients with atrial fibrillation and two with complete atrioventricular [AV] block). This pattern reversed to normal (biphasic) when AV synchrony was reestablished by cardioversion to sinus rhythm in patients with atrial fibrillation and by AV sequential pacing in patients with complete AV block. Thus, both atrial and ventricular contraction and relaxation are important determinants of pulmonary venous flow.

Original languageEnglish
Pages (from-to)693-695
Number of pages3
JournalJournal of the American College of Cardiology
Volume7
Issue number3
DOIs
StatePublished - 1986

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