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Cardiac involvement in tuberous sclerosis

E G Mühler1, V Turniski-Harder, W Engelhardt

  • 1Department of Pediatric Cardiology, RWTH Aachen, Germany.

British Heart Journal
|December 1, 1994
PubMed
Summary
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Cardiac rhabdomyomas are common in tuberous sclerosis but rarely cause serious issues in children. Most cases resolve spontaneously, with surgery reserved for severe, life-threatening obstructions or arrhythmias.

Area of Science:

  • Pediatric Cardiology
  • Genetics
  • Oncology

Background:

  • Tuberous sclerosis is a genetic disorder associated with various tumors, including cardiac rhabdomyomas.
  • Cardiac involvement is a significant concern in pediatric tuberous sclerosis patients.

Purpose of the Study:

  • To investigate the incidence, clinical significance, and natural history of cardiac rhabdomyomas in infants and children with tuberous sclerosis.

Main Methods:

  • Prospective study involving clinical examination, echocardiography (sector and Doppler), and electrocardiography (standard and ambulatory).
  • 21 patients with tuberous sclerosis (age 1 day to 16 years) were evaluated, with follow-up in 14 cases.

Main Results:

  • 14 out of 21 patients had cardiac rhabdomyomas, primarily in the ventricles.

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  • Two patients experienced left ventricular inflow/outflow obstruction.
  • Electrocardiograms revealed arrhythmias and repolarization disturbances in some patients with rhabdomyomas, but these generally did not require medical intervention.

    • Conclusions:

    • Cardiac rhabdomyomas in tuberous sclerosis are frequent but usually benign, causing significant issues only in the neonatal period.
    • Surgical intervention is indicated only for life-threatening obstruction or arrhythmias refractory to medical management.
    • Spontaneous regression or disappearance of tumors was observed in some cases.