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Updated: Jul 19, 2026

A Model of Reverse Vascular Remodeling in Pulmonary Hypertension Due to Left Heart Disease by Aortic Debanding in Rats

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Reversible pulmonary hypertension post adenotonsillectomy.

Muslim M Al-Saadi¹

¹Department of Pediatrics, King Khalid University Hospital, PO Box 50807, Riyadh 11533, Kingdom of Saudi Arabia. malsaadi@yahoo.com

Saudi Medical Journal

|October 3, 2006

Summary

Obstructive sleep apnea can cause severe pulmonary hypertension in children. Adenotonsillectomy effectively resolved this condition, highlighting the importance of treating upper airway obstruction.

Area of Science:

Pediatric Pulmonology
Cardiology

Background:

Chronic upper airway obstruction is a potential cause of pediatric pulmonary hypertension.
Obstructive sleep apnea (OSA) is a common form of upper airway obstruction in children.

Observation:

An 18-month-old boy presented with 12 months of obstructive sleep apnea and severe pulmonary hypertension.
Diagnostic studies including echocardiography and overnight oximetry confirmed hypoxemia and pulmonary hypertension.

Findings:

Adenotonsillectomy was performed to address the upper airway obstruction.
The patient experienced complete resolution of obstructive sleep apnea signs and symptoms, along with pulmonary hypertension.

Implications:

Chronic upper airway obstruction is a reversible cause of pediatric pulmonary hypertension.

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Early diagnosis and treatment of OSA are crucial for managing associated cardiovascular complications.

This case underscores the importance of considering and treating airway obstruction in pediatric pulmonary hypertension.