Korean Circ J.  1985 Mar;15(1):71-76. 10.4070/kcj.1985.15.1.71.

24 Hour Holter EKG Findings in Patients with Dilated Cardiomyopathy


The high freguency of cardiac arrhythmias in patients with dilated cardiomyopathy is of common knowledge. This arrhythmias have the risk of sudden death primarily or secondarily, so accurate detection of arrhythmias with 24 hour ambulatory EKG(Holter) Monitoring is very important. In the present study, Holter monitorings were obtained in 20 patients with dilated cardiomyopathy during the admission. With Holter monitoring, NYHA classification, C-T ratio, LVEF and LVEDP were measured. The results were as follows. 1) Major arrhythmias such as frequent supraventricular premature beats(>30/h) were seen in 6 patients(30.0%), paroxysmal atrial tachycardia in 1 patient(5.0%), atrial fibrillation in 4 patients(20.0%), ventricular premature beats in 17 patients(85.0%), and counduction defects were observed in 3 patients(15.0%). 2) Of VPBs (Lown grade III, IV or bigeminy)were found in 13 patients(76.5%), and 12 cases of VPBs(70.6%) were associated with another major arnhythmias. 3) There was no significant correlationship between the grade of VPB and NYHA classification, C-T ratio, LVEF, and LVEDV. It is concluded that Holter monitoring is valuable for detecting and evaluating the significance of cardiac arrhythmias which have no relation to the severity of the disease.

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