Studies on Heart Rate Variability in Patients with Acute Myocardial Infarction
Korean Circulation Journal
;
: 1160-1168, 1997.
Artículo
en Coreano
| WPRIM
| ID: wpr-79656
ABSTRACT
BACKGROUND:
Heart rate variability(HRV) represents one of the methods of examining the function of autonomic nervous system. Many patients with acute myocardial infarction show evidence of autonomic disturbance during the acute phase of the attack and reduced heart rate variability is a significant predictor of mortality in patients after acute myocardial infarction.METHOD:
The study groups included 25 patients admitted to our hospital with acute myocardial infarction and 23 age matched control group. Heart rate variability(time domainmeasures:
mean NN, SDNN, SDANN, SD, rMSSD, pNN50 and frequency domainmeasures:
TF, LF, HF) was measured from 24 hour Holter recording and wall motion score index(WMSI)was calculated from echocardiography in both groups. Jeopardy score(JS) and ejection fraction(EF) were calculated from coronary angiogram and left ventricular cineangiogram. In patients, HRV, echocardiography and coronary angiography were taken at a mean of 9+/-4, 4.3+/-2.9, and 13+/-6 days after admission.Results:
1) HRV(time domainmeasures:
SDNN, SDANN, SD, rMSSD, pNN50 and frequency domainmeasures:
TF, LF, HF) except mean heart rate was significantly decreased in patients with acute myocardial infarction(AMI)(p<0.001). 2) The angiographic EF and echocardiographic WMSI showed significant negative correlation in patients with AMI(r=-0.49, p<0.05). 3) The EF was significantly related with mean heart rate(r=0.52, p<0.05), SD(r=0.45, p<0.05), TF(r=0.46, p<0.05) and LF(r=0.50, p<0.05) in patients with AMI. 4) There was no correlation among the JS, WMSI, and HRV in patients with AMI.CONCLUSIONS:
These findings support that the autonomic control of the heart was pathologically changed in patients with AMI and among the HRV measurements, mean NN, SD, TF and LF were closely related with left ventricular function.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Sistema Nervioso Autónomo
/
Ecocardiografía
/
Mortalidad
/
Función Ventricular Izquierda
/
Angiografía Coronaria
/
Corazón
/
Frecuencia Cardíaca
/
Infarto del Miocardio
Tipo de estudio:
Estudio pronóstico
Límite:
Humanos
Idioma:
Coreano
Revista:
Korean Circulation Journal
Año:
1997
Tipo del documento:
Artículo
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