Pediatric Cardiology

, Volume 16, Issue 2, pp 56–60 | Cite as

Cardiac dysrhythmias in children with idiopathic dilated or hypertrophic cardiomyopathy

  • G. Müller
  • H. E. Ulmer
  • K. J. Hagel
  • D. Wolf
Original Articles


To assess the incidence and prognostic significance of cardiac dysrhythmias in children with idiopathic dilated or hypertrophic cardiomyopathy, the clinical course of 59 patients was retrospectively reviewed over a period of 27 years. Dilated cardiomyopathy (DCM) was diagnosed in 28 patients and hypertrophic cardiomyopathy (HCM) in 31 patients. The mean age at the time of diagnosis was 2.8±0.7 years in DCM patients and 6.7±0.8 years in HCM patients. Mean follow-up time after diagnosis of cardiomyopathy was 4.1±1.0 years in DCM patients and 6.6±0.8 years in HCM patients. Clinically significant cardiac dysrhythmias were found in 17 of 59 patients (29%): 7 of 28 patients (25%) with DCM and 10 of 31 patients (32%) with HCM. The initial diagnosis of a cardiac dysrhythmia was made by standard electrocardiography in 12 of 17 patients (71%) and by 24-hour Holter monitoring in 5 of 17 patients (29%). Ventricular dysrhythmias were present in 5 of 7 patients with dilated cardiomyopathy and in 5 of 10 patients with hypertrophic cardiomyopathy. During the follow-up time, death occurred in 18 of 59 patients (31%): 8 of 59 patients (14%) died from congestive heart failure and 10 of 59 patients (17%) died suddenly. Among the sudden deaths were 4 of 28 patients (14%) with dilated cardiomyopathy and 6 of 31 patients (19%) with hypertrophic cardiomyopathy. Cardiac dysrhythmias had been documented in 6 of the 10 patients dying suddenly (3 of 4 patients with DCM and 3 of 6 patients with HCM). It is concluded that (1) cardiac dysrhythmias are not a rare finding in children with idiopathic dilated or hypertrophic cardiomyopathy, and (2) their occurrence is not a predictor for sudden death.

Key Words

Idiopathic cardiomyopathy Cardiac dysrhythmias Sudden cardiac death 


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Copyright information

© Springer-Verlag New York Inc. 1995

Authors and Affiliations

  • G. Müller
    • 1
  • H. E. Ulmer
    • 1
  • K. J. Hagel
    • 2
  • D. Wolf
    • 1
  1. 1.Abteilung KinderkardiologieUniversitätskinderklinikHeidelbergGermany
  2. 2.Abteilung KinderkardiologieUniversitätskinderklinikGiessenGermany

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