Abstract
We conducted a systematic review and meta-analysis to assess the efficacy of intragastric BTA injection in patients with obesity and morbid obesity. Five RCTs were identified. Intragastric BTA injection was no superior to saline in absolute weight loss or BMI change, but significantly lengthened the gastric emptying time (MD, 15.57; 95% CI, 8.75 to 22.38). In meta-regression analysis, the absolute weight loss was lower in the patients with high baseline BMI. In subgroup analysis, the use of BTA in absolute weight loss was significantly lower among the patients with baseline BMI more than 40kg/m2 (MD, - 5.31; 95% CI, - 6.17 to - 4.45). The benefit of intragastric BTA injection in reduction of absolute weight was observed in patients with baseline BMI more than 40kg/m2.
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