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Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
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[Balloon dilatation of the pulmonary valve. Short-, middle- and long-term results]

G Buheitel1, B Böhm, A Koch

  • 1Abteilung Pädiatrische Kardiologie Klinik mit Poliklinik für Kinder und Jugendliche, Friedrich-Alexander Universität Erlangen-Nürnberg. Gernot.Buheitel@Kinder.imed.uni-erlangen.de

Zeitschrift Fur Kardiologie
|August 23, 2001
PubMed

Insights

Balloon dilatation effectively treats pulmonary valve stenosis, significantly reducing pressure gradients. This procedure is safe and offers lasting results, particularly for typical and critical cases in infants.

Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Interventional Cardiology

Background:

  • Pulmonary valve stenosis (PVS) is a significant congenital heart defect.
  • Effective treatment options for PVS are crucial for improving patient outcomes.

Purpose of the Study:

  • To evaluate the immediate and long-term efficacy of balloon dilatation for pulmonary valve stenosis.
  • To assess the safety and outcomes across different types of PVS.

Main Methods:

  • Retrospective analysis of 111 patients (1 day-18 years) undergoing pulmonary valve balloon dilatation.
  • Patients categorized into four groups: typical PVS, dysplastic PVS, critical PVS, and pulmonary atresia.
  • Exclusion of patients with complex congenital heart disease.

Main Results:

  • Average systolic transvalvular gradient reduced by 60% (68.5 to 27.2 mmHg) post-procedure.
  • 80% of patients achieved sufficient treatment via transcatheter balloon dilatation.
  • High success rates observed in typical and critical PVS groups, with fewer benefits in dysplastic PVS and pulmonary atresia.

Conclusions:

  • Balloon dilatation is a secure and effective treatment for pulmonary valve stenosis.
  • Optimal outcomes are achieved in typical PVS and critical PVS in newborns/infants.
  • The procedure demonstrates a low rate of major complications (7.3%) with no lasting residuals or deaths.
Abstract

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