KMID : 0390620000080010054
|
|
Journal of Cardiovascular Ultrasound 2000 Volume.8 No. 1 p.54 ~ p.58
|
|
Effect of a Meal on Cardiac Performance in Patients with Coronary Artcry Disease
|
|
Park Hun-Sik
Lee Bong-Ryeol Jung Yee-Ryong Kwack Dong-Hoon Yang Dong-Heon Shin Seung-Chul Hwang Jong-Hyun Cho Yong-Keun Chae Shung-Chul Jun Jae-Eun Park Wee-Hyun
|
|
Abstract
|
|
|
Background: It has been well recognized that exercise tolerance and angina threshold in patients with coronary artery disease (CAD) are reduced after a meal. But precise mechanism leading to the postprandial worsening of angina has yet to be adequately defined. This study was undertaken to determine the effect of a mixed meal on cardiac performance and heart rate variability (HRV) in patients with CAD.
Methods: 24 patients with angina or myocardial infarction were studied. Echocardiographic examination and heart rate variability test were performed in the fasting state and the other 40-60 minutes after a 600-800 kcal mixed meal.
Results: In the postprandial state, resting heart rate was significantly increased by 5.2% from 64.8+/-10.69 beats/min to 68.2+/-10.2 beats/min (p<0.01), stroke volume by 8.1% from 59.6+/-17.3 ml to 64.4+/-18.1 ml (p<0.01), cardiac output by 14.2% from 3.8+/-1.06 to 4.3+/-1.21 (p<0.01). E wave and A wave of mitral filling flow and E/A ratio were not significantly different in the fasting and postprandial tests. But DT and IVRT were significantly increased in the postprandial state (p<0.05, p<0.01 respectively). HRV was not different in the fasting and postprandial state.
Conclusions: In patients with CAD, a 600-800 kcal mixed meal significantly increased resting heart rate, stroke volume, cardiac output, DT and IVRT.
|
|
KEYWORD
|
|
Coronary artery disease, Mixed meal, Cardiac performance
|
|
FullTexts / Linksout information
|
|
|
|
Listed journal information
|
|
|