Can the left ventricular early diastolic tissue-to-blood time interval be used to identify a normal pulmonary capillary wedge pressure?

被引：3
作者：
Guron, Cecilia Wallentin
Persson, Anita
Wikh, Ronny
Caidahl, Kenneth
机构：
[1] Sahlgrenska Univ Hosp Ostra, Dept Clin Physiol, SE-41685 Gothenburg, Sweden
[2] Karolinska Inst, Dept Clin Physiol, S-10401 Stockholm, Sweden
来源：
EUROPEAN JOURNAL OF ECHOCARDIOGRAPHY | 2007年 / 8卷 / 02期
关键词：
pulsed tissue Doppler; echocardiography; left ventricular; time interval; diastolic function; pulmonary capillary wedge pressure;
D O I：
10.1016/j.euje.2006.02.003
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
The pulsed Doppler early diastolic left ventricular (LV) tissue (e)-blood (E) onset temporal relationship (e-E) is suggested to predict pulmonary capillary wedge pressure (PCWP), through the formulas: tau = 32 + 0.7(e-E) and PCWP = LV end-systolic pressure x e(-IVRT/tau). Small changes/errors in E could influence the quotient IVRT/tau by oppositely affecting IVRT and e-E. At rest in 50 healthy individuals we noted: e-E: 2 +/- 14 ms; IVRT: 89 +/- 17 ms; calculated tau: 33 +/- 110 ms; and PCWP: 9 +/- 9 mmHg (>12 mmHg in 28%). Non-pharmacological preload alterations in 14 individuals rendered an intraindividual 'PCWP'-fluctuation of up to 40 mmHg. This application may therefore not be clinically robust. (C) 2006 The European Society of Cardiology. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：94 / 101
页数：8
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