Aims: To assess the extent to which patients with type 2 diabetes or prediabetes, obesity (BMI 30-45kg/m²) and moderate OSA requiring continuous positive airway pressure ventilation (CPAP) are able to discontinue CPAP following EB-related weight loss (ISRCTN33788132).

Methods: We assessed Apnoea Hypopnoea Index (AHI), weight and HbA1c before and following EB. The full study involves 18 patients receiving EB for up to 1 year with 1 year follow-up.

Results: We report here the 1st 11 patients {9/11 (82%) female, 9/11 (82%) type 2 diabetes, 2/11 (18%) prediabetes, mean ± SD age 52.6 ± 9.7 years} to reach at least 3 months EB treatment. In 3 months, weight fell by 6.9 ± 3.3kg from 103.7 ± 14.8 to 96.8 ± 14.8kg (p<0.001), mean BMI by 2.5 ± 1.3kg/m² from 37.1 ± 3.6 to 34.6 ± 3.7kg/m² (p<0.001), mean HbA1c by 0.9±1.0% from 8.0±3.8 to 7.1±3.7% (p=0.025). OSA improved (Figure). Prior to EB, all 11 patients had AHI in moderate sleep apnoea range (15-29.9 events/hour). Following EB, the AHI of 7/11(64%) patients fell below the moderate sleep apnoea threshold of 15 events/hour, such that they no longer required CPAP. Of the remaining 4 patients, 1 came off CPAP at 6 months.

Conclusion: These preliminary results are encouraging in that EB has already allowed 8/11(73%) patients to discontinue CPAP, in addition to glycaemic and weight benefits. Discontinuing CPAP is beneficial to health services but especially to patients.
Disclosure

M. Yadagiri: None. F.Y. Kinney: None. N. Ashman: None. M.H. Lang: None. E. Fogden: None. M. Anderson: None. J. Bleasdale: None. C. Walton: None. M.A. Greenstone: None. R.E. Ryder: Other Relationship; Self; AstraZeneca. Speaker's Bureau; Self; Bioquest, Janssen Pharmaceuticals, Inc.. Other Relationship; Self; Janssen Pharmaceuticals, Inc.. Advisory Panel; Self; Novo Nordisk A/S.

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