Hemodynamic results of percutaneous aortic balloon valvuloplasty as assessed by sequential Doppler echocardiographic studies

Rick A. Nishimura, David Holmes, Guy S. Reeder, Duane M. Ilstrup, Roy S. Small, A. Jamil Tajik

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We determined the sequential hemodynamic changes after percutaneous aortic balloon valvuloplasty by means of two-dimensional and Doppler echocardiographic examinations in 25 patients immediately before, immediately after, and 24 to 36 hours after valvuloplasty. An aortic valve area was determined at all three time periods by using the continuity equation from the Doppler velocity profiles. The aortic valve area by Doppler echocardiography immediately before valvuloplasty correlated with that determined by cardiac catheterization (r = 0.85, SEE = 0.08 cm2). The mean aortic valve gradient by Doppler echocardiography was 50 ± 22 mm Hg before the procedure, decreasing to 29 ± 12 mm Hg (P < 0.001), with a small, but significant, increase 1 day later to 33 ± 13 mm Hg (P < 0.001). The mean subvalvular velocity increased from 0.44 ± 0.13 to 0.52 ± 0.15 m/sec immediately after valvuloplasty (P < 0.001), increasing further to 0.60 ± 0.16 m/sec 1 day later (P < 0.001). The resultant aortic valve area increased from 0.45 ± 0.11 to 0.73 ± 0.18 cm2 immediately after (P < 0.05). One day later, the aortic valve area increased further to 0.86 ± 0.19 cm2 (P < 0.05). Because of the dynamic changes occurring during the first 24 to 36 hours after balloon valvuloplasty, hemodynamic measurements taken immediately after the procedure may underestimate the efficacy of this technique.

Original languageEnglish (US)
Pages (from-to)317-326
Number of pages10
JournalInternational Journal of Cardiology
Volume20
Issue number3
DOIs
StatePublished - Jan 1 1988

Keywords

  • Aortic stenosis
  • Doppler echocardiography
  • Percutaneous aortic balloon valvuloplasty

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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