Diastolic ventricular septal motion in atrial septal defect: Analysis of M-mode echocardiograms in 31 patients

Richard A. Chazal, William F. Armstrong, James C. Dillon, Harvey Feigenbaum

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Previous echocardiographic studies suggest that diastolic motion of the ventricular septum reflects relative filling of the right and left ventricles. We studied 31 patients with atrial septal defect by M-mode echocardiography. Early diastolic posterior ventricular septal motion (DPSM) occurred in all patients. Measurement of DPSM correlated with pulmonary to systemic flow ratios (Qp:Qs) (r = 0.64, p < 0.001). All 15 patients with DPSM > 5 mm had a Qp:Qs > 2.5:1, whereas only 8 of 16 patients with DPSM < 5 mm had a shunt this large (p < 0.003). DPSM > 5 mm in patients with atrial septal defect is a specific but not sensitive echocardiographic sign of a large left-to-right shunt. Our findings substantiate the hypothesis that diastolic motion of the ventricular septum reflects relative filling of the ventricles.

Original languageEnglish (US)
Pages (from-to)1088-1090
Number of pages3
JournalThe American journal of cardiology
Volume52
Issue number8
DOIs
StatePublished - Nov 1 1983

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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