The primary endpoint was a reduction in apnea hypopnea index (AHI) at three months compared to baseline with six and 12 month data also collected. (sciencedaily.com)
Six of these episodes were preceded by apnea, three showed hypopnea (marked reduction in ventilation) and one had certral apnea (no respiratory efforts). (notmilk.com)
The 97 patients studied had severe sleep apnea, with a median of 48 apnea - hypopnea events (complete or partial interruptions of breathing) per hour on standard testing in the sleep laboratory. (sciencedaily.com)