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[Neurocardiogenic syncope in children].

V M Velasco1, F Rosas, J F López

  • 1Fundación Clínica Shaio, Bogotá, Colombia.

Archivos Del Instituto De Cardiologia De Mexico
|December 20, 1999
PubMed
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Head-up tilt testing safely diagnoses recurrent unexplained syncope in children and adolescents, identifying causes in 50% of cases. Management led to symptom remission in 95% of patients within 15 months.

Area of Science:

  • Pediatrics
  • Cardiology
  • Neurology

Background:

  • Recurrent unexplained syncope is a common concern in pediatric populations.
  • Accurate diagnosis is crucial for effective management and to rule out serious underlying conditions.

Purpose of the Study:

  • To evaluate the diagnostic utility and safety of Head-up Tilt Testing (HUTT) in children and adolescents with recurrent unexplained syncope.
  • To assess the effectiveness of a management strategy based on HUTT results.

Main Methods:

  • A cohort of 90 children and adolescents with recurrent unexplained syncope underwent HUTT.
  • Pharmacological provocation with isoproterenol was used during the tilt test.
  • Patients received management including education, risk factor control, and rehabilitation.

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Main Results:

  • HUTT was positive in 50% of patients, predominantly showing vasodepressor responses (57%).
  • The mean age of positive responders was 12.7 years.
  • After a mean follow-up of 15.2 months, 95% of patients experienced complete remission or significant symptom reduction.

Conclusions:

  • Head-up Tilt Testing is a safe and effective diagnostic tool for unexplained syncope in pediatric patients.
  • A comprehensive management approach following HUTT yields high rates of symptom improvement.