Negative extrathoracic pressure ventilation in central hypoventilation syndrome

Area of Science:

• Pediatric Pulmonology
• Respiratory Medicine
• Nephrology

Background:

• Central hypoventilation syndrome (CHS) is a rare respiratory disorder affecting autonomic control of breathing.
• Tracheostomy has been the traditional treatment, but carries risks and impacts quality of life.
• Non-invasive ventilation methods are being explored as alternatives.

Purpose of the Study:

• To evaluate the efficacy and safety of negative extrathoracic pressure ventilation (VNEP) in infants with CHS.
• To assess the feasibility of VNEP as a home-based treatment managed by parents.
• To determine if VNEP can be initiated before tracheostomy and its impact on patient outcomes.

Main Methods:

• Nine infants diagnosed with CHS were treated with VNEP using a novel system with a neck seal and Perspex chamber.
• VNEP was initiated at various ages, from 20 days to 57 months, with some cases starting before tracheostomy.
• Outcomes including need for tracheostomy, respiratory infections, upper airway obstruction management, and developmental progress were monitored.

Main Results:

• Seven patients were successfully managed at home with VNEP without tracheostomy, with treatment initiated early in life.
• Four patients required short-term intubation and positive pressure ventilation during respiratory infections.
• Three patients experienced improved hypoventilation, with two no longer requiring regular ventilatory support; six of seven patients developed normally.

Conclusions:

• VNEP is an effective, non-invasive treatment for CHS in infants, particularly when started before tracheostomy.
• Home management of VNEP by parents is feasible and can improve daytime quality of life.
• VNEP can be combined with nasal continuous positive airway pressure (CPAP) to address upper airway obstruction.