Two-year outcomes on bone density and fracture incidence in patients with T2DM randomized to bariatric surgery versus intensive medical therapy.

OBJECTIVE: To determine the 2-year outcomes of Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) vs. intensive medical therapy (IMT) on lean body mass, total bone mass, and bone mineral density (BMD) measures from the STAMPEDE trial. METHODS: 54 subjects (BMI: 36 ± 1 kg/m(2) , age: 48 ± 4 years) with type 2 diabetes (T2DM) (HbA1c : 9.7 ± 2%) were randomized to IMT, RYGB, or SG and underwent DXA at baseline and at 1 and 2 years. RESULTS: At 2 years, the reduction in BMI was similar after RYGB and SG and was greater than IMT (P < 0.001). Lean mass was reduced by ∼10%, total bone mineral content reduced by ∼8%, and hip BMD reduced by ∼9% in both surgical groups and was significantly greater than IMT despite increases in vitamin D intake in all groups. The change in hip BMD correlated with weight loss (r = 0.84, P < 0.0001) and changes in lean mass (r = 0.74, P < 0.0001) and leptin (r = 0.53, P < 0.0001). Peripheral fractures were self-reported in RYGB (4/18 patients), SG (2/19 patients), and IMT (4/16 patients). CONCLUSIONS: Surgically induced weight loss is associated with modest reductions in lean mass, bone mineral content, and BMD, despite calcium and vitamin D supplementation in patients with T2DM. Awareness for bone loss is indicated for patients undergoing bariatric procedures.

Safety and efficacy of an algorithm-based protocol in the management of diabetic ketoacidosis.

OBJECTIVE: To determine the efficacy of an algorithm-based protocol to manage diabetic ketoacidosis (DKA). METHODS: Our study is a retrospective chart review of patients with DKA managed before and after implementation of an algorithm-based DKA protocol at a tertiary care hospital. RESULTS: There were 88 patients managed 1 year prior (control group) and 70 patients managed one year after (study group) implementation of the algorithm-based DKA protocol. The DKA resolution time was significantly shorter (11.5 [8.1 to 17.1] hours versus 8.5 [5.8 to 12] hours; P = 0.008) and the hypoglycemic events were significantly less (P = 0.042) in the study group in comparison with the control group. There was no difference in the potassium abnormalities and rate of decline of glucose. A survey on a scale of 1 to 10 found the majority of physicians and nurses rated the protocol as safe (83%) and effective (96%). Fifty-four percent of the nurses, however, found the protocol difficult to follow. CONCLUSION: Our study showed that implementation of an algorithm-based protocol reduced the DKA resolution time and hypoglycemic events without compromising electrolyte imbalance, and was associated with improved clinical measures of DKA management.