Table 25: Comparative Studies: Adjustable Gastric Banding, Vertical Banded Gastroplasty, and Standard- and Long-Limb Roux-en-Y Gastric Bypass.
| Comparison | Study (Year) | Procedure | Time After Surgery, Years | Patients at Baseline, N | Patients at Follow-up, N | BMI at Baseline, Mean (SD) | BMI at Follow-up, Mean (SD) | Statistically Significant? |
|---|---|---|---|---|---|---|---|---|
| AGB vs. VBG | Morino (2003) |
AGB VBG |
1 1 |
49 51 |
49 51 |
44.7 44.2 |
35.5 30.1 |
Yes |
| Nilsel (2001) |
AGB VBG |
1 1 |
29 30 |
28 25 |
42.8 (5.4) 43.9 (3.8) |
34.1 (8.6) 28.9 (7.8) |
Yes | |
| AGB VBG |
3 3 |
29 30 |
13 15 |
42.8 (5.4) 43.9 (3.8) |
29.2 (5.8) 31.5 (7.5) |
No | ||
| VBG vs. RYGB |
Sugerman (1987) |
VBG RYGB |
1 1 |
20 20 |
18 19 |
49 (9) 47 (11) |
38.5 (9.0) 30.2 (7.0) |
Yes |
| VBG RYGB |
3 3 |
20 20 |
16 18 |
49 (9) 47 (11) |
39.4 (9.6) 31 (8.1) |
Yes | ||
| RYGB vs. LLRBG |
Feng (2003) |
RYGB LLRBG |
1 1 |
45 13 |
45 13 |
43.6 (3.2) 45.3 (3.9) |
28.1 (3.2) 29 (5.4) |
No |
| Brolin (1992) |
RYGB LLRGB |
1 1 |
22 23 |
17 20 |
63.4 (9) 31.6 (9) |
44 (8) 40 (9) |
No | |
| RYGB LLRGB |
3 3 |
22 23 |
12 13 |
63.4 (10) 61.6 (9) |
45 (14) 37 (6) |
Yes |
(Table reproduced with kind permission from ECRI. Bariatric Surgery for Obesity. 2004. Plymouth Meeting, PA, ECRI. Technology Assessment Report.)