Verapamil in primary pulmonary hypertension.

Area of Science:

• Cardiology
• Pediatrics
• Pharmacology

Background:

• Primary pulmonary hypertension (PPH) in children presents a significant challenge, often leading to heart failure.
• Pulmonary arteriolar obstruction is a key pathological feature of PPH.
• Assessing the reversibility of pulmonary hypertension is crucial for treatment planning.

Observation:

• An 8-year-old girl with PPH and heart failure received an acute интраpulmonary arterial dose of verapamil.
• Pulmonary artery pressure significantly decreased from 70/50 mm Hg to 35/25 mm Hg post-administration.
• Oral verapamil therapy was initiated for long-term management.

Findings:

• The child experienced a gradual resolution of symptoms and returned to normal childhood activities.
• Recatheterization at seven months showed sustained improvement in pulmonary artery pressure (30/10 mm Hg).
• The patient remained clinically well at the 12-month follow-up, indicating sustained efficacy of verapamil.

Implications:

• Verapamil demonstrates potential as a treatment for pediatric primary pulmonary hypertension with reversible pulmonary arteriolar obstruction.
• This case highlights the importance of evaluating reversibility in pediatric pulmonary hypertension.
• Long-term verapamil therapy may offer a viable option for improving outcomes in children with PPH.