Clinical Predictors of Obstructive Sleep Apnea in Asian Bariatric Patients

Abstract

OSA is highly prevalent (82.2%) in Asian bariatric patients. BMI, neck circumference, and scores of ESS are independent predictors of OSA in these patients.

Assessment of Obstructive Sleep Apnea in Adults Undergoing Bariatric Surgery in the Longitudinal Assessment of Bariatric Surgery-2 (LABS-2) Study

“…Thus, it is diffi cult to conclude whether actual prevalence of OSA in the LABS-2 cohort is closer to 53%, as determined in the entire cohort from a combination of assessment methods, or 81%, as determined in the subsample who had past-year AHI available. It is interesting to note that this prevalence of OSA in the subsample with past-year AHI is consistent with several small single-center studies that determined OSA status via PSG (prevalence range: 72-98%), [3][4][5][6][7][8] while the prevalence in the group without a known past-year AHI is in line with a large cohort study in which OSA prevalence (41%) was determined with a set of screening questions. 9 Self-reported PAP compliance (i.e., use among those with OSA), which was similar between participants with and without past-year AHI (83.0% and 81.2%, respectively), was higher than objectively determined compliance reported in the general population, which is between 40% and 60% one year after starting PAP.…”

“…1 Although the reported prevalence of obstructive sleep apnea (OSA) in bariatric surgery patients has been highly variable (ranging from 41% to 98%), [2][3][4][5][6][7][8][9] it is clearly substantially higher than the 2% to 4% prevalence in the general adult population. 10,11 There is evidence to suggest that OSA is independently associated with increased risk of perioperative and postoperative complications, 12,13 including following bariatric surgery.…”

Retropalatal Müller grade is associated with the severity of obstructive sleep apnea in non-obese Asian patients

“…Patients were further classified into four groups with respect to OSA severity based on AHI scores: normal (simple snoring), AHI<5; mild OSA, 5≦AHI<15; moderate OSA, 15≦AHI<30; and severe OSA, AHI≧30 [16].…”

“…Table 1 also summarizes retroglossal and retropalatal area sizes and Müller grading. Retroglossal and retropalatal area sizes were graded in accordance with previous reports [15,16]. The degrees of retroglossal and retropalatal obstructions by airway collapse when patients performed MM were calculated by computer-assisted area measurement, and used for grading retroglossal Müller and retropalatal Müller (Figs.…”

Evaluation of obstructive sleep apnea in obese patients scheduled for bariactric surgery

“…The bariatric surgery was recommended for obesity treatment and its comorbidities in this population and the risks of OSA have been studied by several authors 14,15,[18][19][20][21][22][23][24] . OSA increases the morbidity as well as perioperative and post-operative mortality rate during the bariatric surgery 15,25,26 .…”