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| Clinical research of heart rate turbulence on predictive value in patients with acute myocardial infarction |
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Abstract Objective To explore the HRT and short term prognostic value of heart rate turbulence on acute myocardial infarction and the relationship of HRT and heart rate variability. Methods Chose 200 patients with sinus rhythm after AMI to monitor their 24 h dynamic electrocardiography，TO，TS， HRV time domain indexes and 24 h R-R interval standard difference during the follow-up survey period of 20.6 months. The end event is cardiac death. Results Compared with the survival group（164 patients），the TS of the death group after AMI（36 patients）weakened obviously（P <0.05）and the TO increased. There is a significant correlation between TS and SDNN（r =0.447，P =0.009）. Conclusions The values of TO and TS（factors of HRT）may be a new predictor to evaluate the autonomic nerve activity and predict the adverse cardiovascular events and sudden cardiac death of patients after AMI.
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2012, Vol. 21 
