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Clinical characterization of pediatric pulmonary hypertension: complex presentation and diagnosis

Rosa Laura E van Loon1, Marcus T R Roofthooft, Magdalena van Osch-Gevers

  • 1Department of Pediatric Cardiology, University Medical Center, University of Groningen, Groningen, The Netherlands.

The Journal of Pediatrics
|June 16, 2009
PubMed

Insights

Pediatric pulmonary arterial hypertension (PAH) often presents with associated conditions, but these are not always the cause. Accurate classification using the Venice criteria is crucial for understanding pediatric PAH.

Area of Science:

  • Pediatric Cardiology
  • Pulmonology
  • Medical Genetics

Background:

  • Pediatric pulmonary arterial hypertension (PAH) presents complex clinical challenges.
  • Associated conditions and syndromal abnormalities are frequently observed in pediatric PAH cases.
  • Accurate classification is essential for appropriate management and research.

Purpose of the Study:

  • To delineate the clinical presentation of pediatric PAH.
  • To detail the application of the Venice classification for categorizing pediatric PAH.
  • To assess the explanatory role of associated conditions in pediatric PAH.

Main Methods:

  • Retrospective analysis of 63 children diagnosed with pulmonary hypertension (PH) at a national referral center.
  • Comprehensive diagnostic work-up to identify PH and associated conditions.
  • Classification of PH based on the Venice criteria and the explanatory power of associated conditions.

Main Results:

  • 29% of patients had idiopathic PAH; 71% had associated conditions (CHD, CTD, RSH, CTE).
  • In 20% of cases with associated conditions, PH was not fully explained by them, leading to an 'idiopathic-like PAH' classification.
  • Specific classifications included idiopathic (-like) PAH (46%), PAH-CHD (37%), PH-RSH (12%), PAH-CTD (3%), and CTE-PH (2%).

Conclusions:

  • Pediatric PH commonly involves associated conditions and syndromal abnormalities.
  • Associated conditions do not always sufficiently explain the pulmonary hypertension.
  • The Venice classification provides a framework for categorizing complex pediatric PAH cases.
Abstract

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