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Doppler measurement of left atrial depressurization and mitral valve area in patients with suspected mitral stenosis: validation of a new method.

Abstract：

:Atrial depressurization time measurement by Doppler ultrasound can be used to quantify stenotic mitral valve area. In this report, we present the results of a blinded trial comparing the standard Doppler method for "pressure half-time" (A) and another Doppler method we devised (B) for measurement of atrial depressurization time. Both methods were tested against valve area data from catheterization performed within 24 hours after Doppler echocardiography. Ten readers analyzed each of 10 Doppler profiles by methods A and B, in random order. After decoding, each of the 200 Doppler readings was compared to the catheterization result. Method B proved more accurate than method A by repeated measures analysis of variance (p less than 0.0001). Furthermore, method B took less than half as long to perform (p less than 0.0001). The methods presented herein provide a simple alternative means to follow the progression of mitral stenosis noninvasively and to determine optimal timing for surgery.

journal_name

Am Heart J

journal_title

American heart journal

authors

Pearlman JD,Gibson RS

doi

10.1016/0002-8703(87)90045-7

subject

Has Abstract

pub_date

1987-04-01 00:00:00

pages

868-73

issue

4

eissn

0002-8703

issn

1097-6744

pii

0002-8703(87)90045-7

journal_volume

113

pub_type

临床试验,杂志文章,随机对照试验

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