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Abstract: Poster Presentations |

CORRELATION BETWEEN BODY MASS INDEX AND CONTINUOUS/BIVALVE POSITIVE AIRWAY PRESSURE FREE TO VIEW

Parvathi Theerthakarai, MD*; Ravi T. Chandran, MD
Author and Funding Information

Dept. of Pulmonary Critical Care and Sleep, Oconee Medical Center, Seneca, SC


Chest


Chest. 2008;134(4_MeetingAbstracts):p149003. doi:10.1378/chest.134.4_MeetingAbstracts.p149003
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Abstract

PURPOSE: To evaluate the relationship between Body Mass Index and Continuous positive airway pressures needed in Obstructive sleep apnea patients.

METHODS: We retrospectively reviewed the data from a community sleep lab center between September '06 to May '07. A total of 112 patients (mean +/−SD age 53+/−12 years) underwent both NPSG and CPAP/BiPAP titration during this time. BMI categorized as Normal: 18.5–24.9, Overweight: 5–29: Obese: 30–40 and morbid obesity: >40. Among the 112 patients, 3.6% of the cases were normal 25% overweight 48.2% obese and 23.3% were morbid obese.

RESULTS: The mean CPAP pressures were (mean +/−SD) were 9.5+/−3.3, 9.9+/−3.1, 10.3 +/−2.9 and 10.5+/−3.3 cm in normal, overweight, obese and morbid obese patients respectively. Statistical analysis performed using Pearson Correlation, showed no statistically significant correlation between Body Mass index and CPAP pressures (Pearson correlation r =0.087; p=0.36). There was statistically significant correlation between body mass index and AHI (Pearson correlation r =0.25; p<.01).

CONCLUSION: The increase in Body Mass Index did not increase Continuous Positive Airway Pressure. There is no relationship between Body Mass Index and the CPAP/BiPAP requirements. The increase in Body Mass Index is associated with increase in severity of Sleep Apnea indicated by Apnea-Hypopnea Index independent of age and sex of the subjects.

CLINICAL IMPLICATIONS: BMI does not correlate with CPAP/BiPAP requirements.

DISCLOSURE: Parvathi Theerthakarai, No Financial Disclosure Information; No Product/Research Disclosure Information

Wednesday, October 29, 2008

1:00 PM - 2:15 PM


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