Central hypoventilation with PHOX2B expansion mutation presenting in adulthood

Area of Science:

• Genetics and Respiratory Medicine
• Neurology

Background:

• Central hypoventilation syndrome (CHS) is a rare disorder characterized by impaired respiratory drive.
• PHOX2B gene mutations are a primary cause of congenital and late-onset CHS.
• Patients often present with autonomic dysfunction, including impaired hypercapnic response.

Purpose of the Study:

• To describe a case of acute-on-chronic respiratory failure in an adult with PHOX2B mutation-associated central hypoventilation.
• To highlight the successful management of respiratory failure using non-invasive ventilation.

Main Methods:

• Case report of a 41-year-old male patient.
• Assessment of respiratory function and response to hypercapnia.
• Treatment with non-invasive ventilation (NIV).

Main Results:

• The patient presented with acute-on-chronic respiratory failure.
• Quantified impaired response to hypercapnia was observed.
• Successful treatment and stabilization with NIV were achieved.

Conclusions:

• Non-invasive ventilation is an effective treatment for respiratory failure in adults with PHOX2B mutation-associated central hypoventilation.
• PHOX2B mutations can manifest with severe respiratory compromise in adulthood.
• Nocturnal NIV can be successfully implemented for home management.