Effect of a Meal on Cardiac Performance in Patients with Coronary Artcry Disease
Journal of the Korean Society of Echocardiography
;
: 54-58, 2000.
Article
in Korean
| WPRIM
| ID: wpr-180715
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Stroke Volume
/
Coronary Artery Disease
/
Echocardiography
/
Cardiac Output
/
Fasting
/
Exercise Tolerance
/
Meals
/
Heart Rate
/
Myocardial Infarction
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Society of Echocardiography
Year:
2000
Type:
Article
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