Application of Heart Rate Turbulence Detection in Diagnosis and Treatment of Chronic Heart Failure

Objective To explore the clinical value of heart rate turbulence(HRT) detection in chronic heart failure(CHF) diagnosis and treatment.Methods 62 patients with CHF(study group) received the 24h ambulatory ECG(Holter) check,the HRT,heart rate variability index and cardiac function were calculated;and 50 cases of normal healthy persons were selected as controls.Results Turbulence onset(TO) of the study group was significantly higher than that of the control group and turbulence slope(TS) was significantly lower than the control group(P0.01);TO and left ventricular ejection fraction(LVEF),left ventricular end diastolic internal diameter(LVED),normal sinus rhythm,RR interval standard deviation(SDNN) was negatively correlated,TS and LVEF,LVED,SDNN was positively correlated(P0.05).The higher the TO and the lower the TS,the higher the readmission rate and mortality.Conclusion HRT phenomenon in CHF patients is significantly reduced,and the HRT detection is beneficial for CHF risk stratification and the prognosis evaluation.