4.6 Article

Early continuous glucose monitoring for predicting remission of type 2 diabetes 1 year after bariatric surgery

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DIABETES & METABOLISM
卷 47, 期 6, 页码 -

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MASSON EDITEUR
DOI: 10.1016/j.diabet.2021.101255

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Bariatric surgery; Continuous glucose monitoring; Diabetes remission; Type 2 diabetes

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This study demonstrated that the glycaemic patterns in obese subjects post-bariatric surgery can predict the remission of type 2 diabetes 1 year later. Time spent above range and standard deviation of glucose levels were strong predictors of diabetes remission, with a combination of criteria showing high positive predictive value, sensitivity, and specificity.
Background. - Bariatric surgery in obese subjects can result in remission of type 2 diabetes (T2D) at a distant time post-surgery. The aim of our observational prospective single-centre study was to examine glycaemic patterns in adult T2D candidates for bariatric surgery using a continuous glucose monitoring (CGM) sensor for 14 days after surgery to search for indicators predictive of T2D remission 1 year later. Methods. - Patients underwent CGM preoperatively and for 14 days postoperatively. Thereafter, body weight and glycated haemoglobin (HbA1c) levels were monitored at 3, 6 and 12 months after surgery. Results. - A total of 31 patients (mean age 47 +/- 2 years) were analyzed. After surgery, mean interstitial glucose levels fell rapidly from 157 +/- 31 mg/dL preoperatively to 109 +/- 35 mg/dL postoperatively (P < 0.001), reaching nadir levels from day 3 after surgery. Successful bariatric surgery (loss of excess weight >= 50%) was observed in 28 (90%) patients, and diabetes remission (HbA1c <= 6% with no antidiabetic treatment) 1 year after surgery was noted in 21 (68%) patients. CGM for 14 days post-surgery allowed prediction of diabetes remission 1 year after surgery: time spent above range <14% and standard deviation (SD) of glucose levels <33 mg/dL were both strong predictors of T2D remission. Indeed, the association of these two criteria predicted diabetes remission with a 100% positive predictive value, 81% sensitivity and 100% specificity and, when combined with the advanced Diabetes Remission (Ad-DiaRem) score, further increased predictive accuracy. Conclusion. - The use of 14-day postoperative CGM recordings together with presurgical clinical scores can help to predict diabetes remission 1 year after bariatric surgery. (C) 2021 Published by Elsevier Masson SAS.

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