What type of therapy is NOT recommended first for a patient with a high number of central apneas?

In the context of treating a patient with a high number of central apneas, BiLevel therapy is not typically recommended as the first line of treatment. Central apneas are characterized by a lack of respiratory effort due to a failure in the brain's signals for breathing, and managing these conditions often requires addressing the underlying causes.

CPAP (Continuous Positive Airway Pressure) therapy is often the first choice for obstructive sleep apnea but is not as effective for central apneas. Oxygen therapy may be considered in acute settings for hypoxemia, while medication therapy can sometimes be used to stimulate breathing or address underlying conditions contributing to central apnea.

BiLevel therapy, which provides two levels of pressure for inhalation and exhalation, might be suitable in certain scenarios, particularly for complex sleep apnea syndromes, but it is not the standard initial approach for patients presenting with a high incidence of central apneas. This makes BiLevel therapy less ideal as a primary treatment option in these cases.