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Incessant ventricular tachycardia in infancy.

K C Lau1, M A McGuire, D L Ross

  • 1Cardiology Unit, Westmead Hospital, Sydney, New South Wales, Australia.

Journal of Paediatrics and Child Health
|April 1, 1990
PubMed
Summary

Incessant ventricular tachycardia in infants, often misdiagnosed, can be cured with cryoablation. Early diagnosis and surgical treatment of these arrhythmias are crucial for a positive outcome.

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Area of Science:

  • Pediatric Cardiology
  • Electrophysiology
  • Cardiac Surgery

Background:

  • Incessant tachycardia in infants is often initially misdiagnosed as supraventricular tachycardia.
  • Drug-refractory tachycardia in infants warrants thorough investigation for ventricular origins.

Observation:

  • Electrocardiogram analysis suggested ventricular tachycardia in two infants.
  • Electrophysiological studies confirmed ventricular tachycardia originating from the left ventricle.

Findings:

  • Cryoablation successfully eliminated ventricular tachycardia in both infants by targeting specific arrhythmogenic foci.
  • One infant experienced recurrence due to a nearby focus, which was also successfully treated.
  • Histopathology revealed hamartomatous tissue in one infant, normal in the other.

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Implications:

  • Surgically treatable lesions are common causes of incessant ventricular tachycardia in infants.
  • Early diagnosis and prompt surgical intervention, such as cryoablation, can cure this potentially fatal condition.
  • Cryoablation offers a promising therapeutic option for pediatric ventricular tachycardia.