How to take care of a 2-month-old with pulmonary hypertension?

Question

Hello doctor,

A 2-month-old male is having severe HMPV, bronchiolitis, and 26 weeks of chronic lung disease. There is failed CPAP (continuous positive airway pressure) and now intubated. The mean arterial pressure is 14 with persistent desaturation. The echo shows severe PAH (pulmonary hypertension) and frequent pulmonary hypertensive crises. Parents ask about ECMO and consider inhaled nitric oxide. The recent grade is 2 IVH. A neonatologist is following for prematurity complications. The pulmonologist suggested aggressive bronchodilator therapy alongside ventilator management. Current management includes high-frequency oscillatory ventilation with FiO2 0.8. Cultures are negative for bacterial co-infection. A recent chest X-ray shows diffuse infiltrates consistent with viral pneumonitis. What is the best approach to managing pulmonary hypertension?

Please suggest.

Answer 1

Hello,

Welcome to icliniq.com.

For severe PAH (pulmonary hypertension) with pulmonary hypertensive crises with HMPV (human metapneumovirus) and bronchiolitis, management should focus on pulmonary vasodilation, optimizing oxygenation, and avoiding triggers for crises.

Pulmonary hypertension management:

Inhaled nitric oxide (iNO) – Yes, consider starting at 10 to 20 ppm (parts per million) to improve V/Q (ventilation-perfusion) matching and pulmonary vasodilation, especially with persistent desaturation despite HFOV (high-frequency oscillatory ventilation).
Optimize oxygenation and ventilation – Target SpO₂ >92% to reduce hypoxic vasoconstriction. Consider increasing MAP (mean arterial pressure) cautiously if lung compliance allows.
Milrinone – It can help with pulmonary vasodilation and cardiac output, especially if there is RV (right ventricular) dysfunction.
Vasoactive support – Epinephrine or Dopamine may be needed if systemic hypotension worsens.
Fluid management – Avoid volume overload, but ensure adequate perfusion to prevent worsening crises.
Bronchodilators – As the pulmonologist suggested, consider Albuterol or Ipratropium if there is significant airway reactivity.

ECMO considerations:

ECMO (extracorporeal membrane oxygenation) is reasonable if refractory hypoxemia, worsening hemodynamics, or RV (right ventricular) failure, but recent grade 2 IVH (intraventricular hemorrhage) increases bleeding risk. Neonatal PAH on ECMO can be challenging to wean if the underlying lung disease is severe. Discuss risks and benefits thoroughly with the family.

Since this patient is at high risk for deterioration, multispecialty coordination (neonatology, pulmonology, cardiology, and ECMO team) is critical. Let me know if you need further guidance.

I hope this helps.

Thank you and take care.