Assessing the Efficacy and Safety of the Allurion® Gastric Balloon in Latin American Patients: A Multicenter Case Series

<b><i>Introduction:</i></b> The Allurion® gastric balloon (AGB) is an innovative option for treating overweight individuals and those with grade I obesity, or as a bridging treatment for bariatric surgery, or for patients who do not desire surgical intervention. This study aimed to evaluate the efficacy and safety of the AGB in a multicentric cohort. <b><i>Materials and Methods:</i></b> A retrospective analysis of consecutive cases treated with AGB (≥18 years old with body mass index [BMI] ≥27) was performed in eight centers in three countries in Latin America (Argentina, Chile, and Perú), between September 2021 and September 2022, with a 12-month follow-up. <b><i>Results:</i></b> In total, 402 patients were included (median BMI of 32.81 kg/m²). Mean total weight loss percentage was 8.3%, 11.6%, and 14.9% at 3, 6, and 12 months, respectively, with a follow-up of 93.03%, 75.37%, and 40.54%. The adverse event rate was 1.24% (<i>n</i> = 5). During the first 7 days, 34.58% (<i>n</i> = 139) experienced concomitant symptoms, and 1.99% (<i>n</i> = 8) asked for endoscopic balloon extraction because of intolerance. The complication rate was 6.46% (<i>n</i> = 26). Readmission index was 4.97% (<i>n</i> = 20), and reintervention was 2.23% (<i>n</i> = 9). Balloon elimination was experienced by 5.7% of patients in the first 14 days, 29.10% (<i>n</i> = 117) before the third month, and 62.68% (<i>n</i> = 252) after the 16th week. Early deflation rate was 2.73% (<i>n</i> = 11). Digestive track elimination was perceived by 26.61%. <b><i>Conclusions:</i></b> AGB is a safe and effective option for the treatment of overweight and obesity in Latin America. Lifestyle changes and continuous support with a multidisciplinary team are essential to achieving good mid- to long-term outcomes.