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Guidelines on Overweight and Obesity: Electronic Textbook |
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Weight Loss Surgery Fourteen RCTs compared the weight-reducing effect of different surgical interventions (515-522, 524, 692, 706, 733, 756, 757). One study compared the effectiveness of a very low-calorie diet to surgery (515). Another study compared the effectiveness of horizontal-banded to vertical-banded gastroplasty in a pretreated, very low-calorie formula diet group (516). Six studies compared two or more of the following procedures: gastroplasty (vertical or horizontal), gastric bypass, and gastric partitioning (517-522). Seven studies reported long-term (1 year or more) follow up (515, 517-522). Two studies looked at comorbidity factors associated with weight loss (517, 519). Of these 14 RCT studies, the following five were not included because:
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