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An assessment of two different methods of left ventricular ejection time measurement by transesophageal echocardiography.

Publication ,  Journal Article
Swaminathan, M; Phillips-Bute, BG; Mathew, JP
Published in: Anesth Analg
September 2003

Left ventricular ejection time (LVET) is an important component in evaluating left ventricular performance. This measurement is usually made by measuring the timing of the transaortic valve flow velocity by continuous-wave Doppler. Although M-mode has also been used for measuring LVET, it has not been compared with the Doppler method. We tested the hypothesis that the M-mode-measured duration of aortic valve opening is comparable to Doppler-derived measurement of LVET by transesophageal echocardiography (TEE). Measurements were made in 31 patients undergoing nonaortic valve cardiac surgery. The timing of transaortic flow by continuous-wave Doppler was compared with the M-mode-derived timing of aortic valve opening. There was close correlation (Pearson correlation coefficient, r = 0.86; P < 0.0001) between M-mode and Doppler measurements. There was no significant difference between the two techniques by linearity tests (P > 0.1). Bland-Altman analysis showed no significant bias. We confirmed the hypothesis that M-mode-derived measurement of LVET is comparable to Doppler-derived measurement of LVET. M-mode may be an acceptable alternative to the Doppler method, especially when transvalvular velocity gradients cannot be readily obtained. M-mode is a simple, yet often underused, method of evaluating LVET during TEE.

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Published In

Anesth Analg

DOI

ISSN

0003-2999

Publication Date

September 2003

Volume

97

Issue

3

Start / End Page

642 / 647

Location

United States

Related Subject Headings

  • Ventricular Function, Left
  • Middle Aged
  • Male
  • Humans
  • Heart Function Tests
  • Female
  • Echocardiography, Transesophageal
  • Echocardiography, Doppler
  • Echocardiography
  • Aortic Valve
 

Citation

APA
Chicago
ICMJE
MLA
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Swaminathan, M., Phillips-Bute, B. G., & Mathew, J. P. (2003). An assessment of two different methods of left ventricular ejection time measurement by transesophageal echocardiography. Anesth Analg, 97(3), 642–647. https://doi.org/10.1213/01.ANE.0000074125.74597.20
Swaminathan, Madhav, Barbara G. Phillips-Bute, and Joseph P. Mathew. “An assessment of two different methods of left ventricular ejection time measurement by transesophageal echocardiography.Anesth Analg 97, no. 3 (September 2003): 642–47. https://doi.org/10.1213/01.ANE.0000074125.74597.20.
Swaminathan M, Phillips-Bute BG, Mathew JP. An assessment of two different methods of left ventricular ejection time measurement by transesophageal echocardiography. Anesth Analg. 2003 Sep;97(3):642–7.
Swaminathan, Madhav, et al. “An assessment of two different methods of left ventricular ejection time measurement by transesophageal echocardiography.Anesth Analg, vol. 97, no. 3, Sept. 2003, pp. 642–47. Pubmed, doi:10.1213/01.ANE.0000074125.74597.20.
Swaminathan M, Phillips-Bute BG, Mathew JP. An assessment of two different methods of left ventricular ejection time measurement by transesophageal echocardiography. Anesth Analg. 2003 Sep;97(3):642–647.

Published In

Anesth Analg

DOI

ISSN

0003-2999

Publication Date

September 2003

Volume

97

Issue

3

Start / End Page

642 / 647

Location

United States

Related Subject Headings

  • Ventricular Function, Left
  • Middle Aged
  • Male
  • Humans
  • Heart Function Tests
  • Female
  • Echocardiography, Transesophageal
  • Echocardiography, Doppler
  • Echocardiography
  • Aortic Valve