Maxillomandibular Advancement in the Management of Obstructive Sleep Apnea

Table 1

Group pre- and post-maxillomandibular advancement (MMA) demographic- and polysomnographic-matched pair data.

	𝑛	Pre-MMA; (mean ± SD)	Post MMA; (mean ± SD)	𝑃 value
ESS	14	13.6±5.4	8.8±3.3	0.0063**
BMI (kg/m^2)	18	30.5±6.0	30.3±5.3	0.7
AHI (number/hour)	24	45.4±26.4	7.8±10.5	<0.0001**
Sleep efficiency (%)	17	72.2±18.9	78.6±16.7	0.2
Stage N1 (%)	15	22.3±15.9	14.2±11.2	0.08
Stage N2 (%)	15	55.4±12.1	55.3±8.3	0.97
Stage N3 (%)	15	10.7±10.2	15.3±8.3	0.04**
Stage R (%)	16	9.1±7.2	15.2±6.9	0.0078**
Respiratory-related arousals (events/hour)	12	49.0±21.4	11.5±14.9	0.0002**
Lowest oxyhemoglobin saturation (%)	21	81.2±8.0	86.2±5.6	0.03**
Time in supine position (%)	12	44.4±28.5	41.7±28.9	0.7

Abbreviations: SD: standard deviation; ESS: Epworth Sleepiness Scale; BMI: body mass index (kg/m²); AHI: apnea-hypopnea index (apneas and hypopneas per hour of sleep); N: non-rapid eye movement sleep; R: rapid eye movement sleep.