A case of achondroplasia with severe pulmonary hypertension due to obstructive sleep apnea
Selman Vefa Yildirim1, Cemile Durmaz, Mir Ali Pourbagher
1Division of Pediatric Cardiology, Adana Teaching and Research Center, Başkent University, Adana, Turkey.
Insights
Severe pulmonary hypertension in achondroplasia is rare. This case study shows that upper-airway obstruction from achondroplasia can cause severe pulmonary hypertension, which resolved after surgery.
Area of Science:
- Pediatrics
- Genetics
- Pulmonology
Background:
- Achondroplasia is the most common skeletal dysplasia.
- Patients with achondroplasia often exhibit midface hypoplasia, leading to airway complications.
- Obstructive sleep apnea is a known cause of pulmonary hypertension (PH) via hypoxemia.
Observation:
- A 5-year-old girl with achondroplasia presented with severe PH.
- Her condition was attributed to upper-airway obstruction secondary to achondroplasia.
- This is a rare presentation of severe PH in achondroplasia.
Findings:
- The patient experienced severe pulmonary hypertension due to obstructive sleep disorder.
- Adenotonsillectomy was performed to address the upper-airway obstruction.
- Post-surgery, the patient showed gradual resolution of severe PH.
Implications:
- This case highlights a rare but serious complication of achondroplasia.
- Early identification and management of airway obstruction are crucial in achondroplasia patients.
- Surgical intervention for airway obstruction may effectively treat severe PH in this population.
Abstract:
Achondroplasia is the most common skeletal dysplasia in children. Achondroplasic patients have a short cranial face and midface hypoplasia. They often have sleep-related respiratory disturbances that lead to hypoxemia caused by midfacial hypoplasia, a small upper airway, hypotonia of airway muscles, or brain stem compression. It has been well described that obstructive sleep apnea can cause pulmonary hypertension (PH) through the mechanism of chronic hypoxemia. However, severe PH due to obstructive-type sleep disorder is rare in patients with achondroplasia. In this report, we describe a 5-year-old girl with achondroplasia whose severe PH was caused by upper-airway obstruction and was resolved gradually after adenotonsillectomy.
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