Abnormal septal motion affects early diastolic velocities at the septal and lateral mitral annulus, and impacts on estimation of the pulmonary capillary wedge pressure

Karen Adele D'Souza, Donald John Mooney, Andrew Edyvane Russell, Andrew Ian MacIsaac, Philip Edmund Aylward, David Lloyd Prior

Research output: Contribution to journalConference article

39 Citations (Scopus)

Abstract

Abnormal motion of the interventricular septum (ASM), seen post cardiac operation, with left bundle branch block or right ventricular pacing, may affect septal mitral annular motion and correlation of the ratio between the velocity of early diastolic mitral inflow and the early diastolic mitral annular velocity (E/Ea) with pulmonary capillary wedge pressure (PCWP). We examined the effect of ASM on the relationship between E/Ea and E/Vp (propagation velocity of mitral inflow) ratios and PCWP in adult patients in the intensive care unit (14 with normal septal motion [NSM], 36 with ASM) undergoing echocardiography and pulmonary artery catheterization. E/Ea correlated well with PCWP during NSM (r = 0.86 lateral annulus, r = 0.75 septal annulus), but poorly during ASM (r = 0.36 lateral annulus, r = 0.39 septal annulus). E/Vp correlated poorly with PCWP (r = 0.05 NSM, r = 0.17 ASM). For patients who are critically ill, E/Vp ratios poorly estimate PCWP. During NSM, E/Ea ratios measured at the lateral or septal annulus correlate well with PCWP. ASM affects E/Ea ratios at both the septal and lateral annulus, making E/Ea ratios unreliable for estimating PCWP in this group.

Original languageEnglish
Pages (from-to)445-453
Number of pages9
JournalJournal of the American Society of Echocardiography
Volume18
Issue number5
DOIs
Publication statusPublished - 1 May 2005
EventSixteenth Annual Scientific Sessions - Boston, MA, United States
Duration: 15 Jun 200518 Jun 2005

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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