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Our Study Aimed: To investigate the effect of laparoscopic sleeve gastrectomy (LSG) on obese T2DM patients, its effect in remission of diabetes and role of gastrointestinal Glucagon like peptide 1(GLP1) and Peptide tyrosine tyrosine (PYY) hormones. Metabolic surgery should be recommended as an option in type 2 diabetic patients (T2DM) with body mass index (BMI) ≥40 Kg/m2, in patients who have BMI ≥35 Kg/m2 and in selected patients with BMI < 35 Kg/m2, if not achieving diabetes control with maximum tolerated anti-hyperglycemic treatment.
Methods: 30 T2DM patients with BMI ≥ 40 kg/m2 underwent laparoscopic sleeve gastrectomy after full clinical evaluation, routine blood tests, glucagon like peptide 1, Peptide tyrosine tyrosine (fasting, 0.5-hour post-mixed meal test (MMT) serum levels) and upper GIT endoscopy. Follow-up visits were at 3, 6 and 9 months postoperatively to evaluate body weight, BMI and glycated hemoglobin (HbA1C) and at 18th month for confirmation of diabetes remission. Gut hormones were measured at 15 days and 9 months postoperatively.
Results: (53.3%) of patients had partial remission of T2DM according to HbA1C remission criteria. There was significant increase in fasting and post-MMT levels of peptide tyrosine tyrosine, glucagon like peptide 1 postoperatively. The only independent predictors for remission of T2DM were the baseline serum low density lipoprotein cholesterol (LDL-Ch), duration of diabetes, preoperative post MMT Peptide tyrosine tyrosine plasma level, serum thyroid stimulating hormone (TSH) and age.
Conclusions: laparoscopic sleeve gastrectomy can induce partial remission of diabetes in younger patients who had shorter duration of diabetes, higher level of preoperative post-MMT peptide tyrosine tyrosine, lower levels of preoperative serum LDL-Ch and thyroid stimulating hormone.
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