First-line treatment for central sleep apnea is which modality?

• A. NIPPV
• B. Nasal CPAP
• C. Weight loss
• D. Oral appliances

Answer: (A)

Central sleep apnea stems from inadequate respiratory drive during sleep, not from a blocked airway. The goal of treatment is to support ventilation and stabilize gas exchange during sleep, rather than simply keeping the airway open. Noninvasive ventilation with two pressure levels (inspiratory and expiratory) provides active ventilatory support, increasing tidal volume during periods of reduced drive. This helps prevent or lessen central apneas, reduces fluctuations in carbon dioxide, and tends to improve sleep quality and overall ventilation more effectively than just maintaining airway patency. That’s why this modality is considered the best first-line approach for central sleep apnea.

In contrast, maintaining airway patency with nasal CPAP mainly addresses obstructive issues and may not adequately support ventilation during central events. Weight loss targets obesity-related obstructive sleep apnea, and oral appliances are focused on mandible position to open the airway, not on correcting central ventilatory control.