Periodic health examination, 1999 update:
1. Detection, prevention and treatment of obesity
| Table 4: Studies of the effectiveness of surgical treatment of obesity | ||||||||
| Study | No. of patients (no. of women) | Length of follow-up | Patients lost to follow-up | Intervention groups |
Mean baseline weight or BMI | Mean weight loss/gain at follow-up, kg | Comments | |
| Randomized controlled trials | ||||||||
| Andersen et al73 | 57 | (50) | 5 yr | 1 | A: VLCD B: LCD + gastroplasty |
A: 115 kg B: 120 kg |
A: -26.8 B: -18.2 |
A: 21/30 patients regained most weight loss (within 1 kg of baseline weight) B: 16/27 patients regained most weight loss (within 1 kg of baseline weight) |
| Hall et al74 | 310 | (288) | 3 yr | 52 | A: Gastric bypass B: Gastro- plasty C: Gastro- gastrostomy |
A: 110 kg B: 112 kg C: 115 kg |
A: -17 B: -31 C: -39 |
66% of patients in group A, 44% in group B and 16% in group C had > 50% excess weight loss |
| Naslund et al75 | 57 | (51) | 2 yr | 0 | A: Gastric bypass B: Gastro- plasty |
A: 117.7 kg B: 117.8 kg |
A: -42.9 B: -27.6 |
– |
| Lechner et al76 | 112 | (NA) | A: Gastric bypass B: Gastro- plasty |
A: 119.9 kg B: 118.6 kg |
A: -45.5 B: -28.8 |
– | ||
| Prospective cohort study | ||||||||
| Ashley et al77 | 114 | (96) | 6–48 mo | 5 | Gastroplasty | BMI 44.8 | NA | 31 of 47 patients followed up for 2 yr regained > 50% of lost weight |
