Table 4 Summary of the effects of surgical weight loss interventions on the %FFML

From: Changes in fat-free mass during significant weight loss: a systematic review

Author Year Intervention Study type FFM loss (%Weight loss) Weight loss (kg) Duration (wks) n Sex Initial BMI Method
Vettor et al.42 2003 BPD Obs 17.5 43.5 78 10   49.8 TBW
Tacchino et al.43 2003 BPD Obs 19.2 31.7 26 101 F 45.5 DEXA
Gniuli et al.44 2005 BPD Obs 20.0 47.6 104 10   45.3 TBW
Tacchino et al.43 2003 BPD Obs 20.1 43.3 52 101 F 45.5 DEXA
Tacchino et al.43 2003 BPD Obs 22.0 46.0 104 101 F 45.5 DEXA
Mingrone et al.45 2002 BPD RCT 25.1 35.1 52 31 F 48.3 DEXA
Fabris et al.46 2004 BPD Obs 26.2 48.6 78 10   49.0 TBW
Mingrone et al.45 2002 BPD RCT 27.8 52.1 52 15 M 48.4 DEXA
Valera-Mora et al.47 2005 BPD Obs 29.1 55.0 104 85 F 48.9 TBW
Benedetti et al.48 2000 BPD CCT 31.5 60.4 130 14   48.1 DEXA
Greco et al.49 2002 BPD CCT 48.5 33.0 26 8   49.4 DEXA
Valera-Mora et al.47 2005 BPD Obs 52.7 55.0 104 22 M 48.1 TBW
Das et al.50 2003 RYGB Obs 21.2 53.4 61 30   50.1 TBW
Carey et al.51 2006 RYGB Obs 29.3 12.3 4 19   48.7 UWW
Carey et al.51 2006 RYGB Obs 33.2 39.7 26 19   48.7 UWW
Carey et al.51 2006 RYGB Obs 36.3 25.9 13 19   48.7 UWW
Coupaye et al.52 2005 LAGB Obs 12.7 23.7 52 36 F 47.2 DEXA
Pugnale et al.53 2003 LAGB Obs 14.1 27.7 52 31 F 43.6 DEXA
Sergi et al.54 2003 LAGB Obs 14.1 17.0 26 6 F 42.8 DEXA
Gasteyger et al.55 2006 LAGB Obs 16.4 39.6 104 36 F 43.8 DEXA
Giusti et al.56 2005 LAGB Obs 16.9 29.5 52 37 F 43.7 DEXA
Giusti et al.57 2004 LAGB Obs 17.4 27.6 52 31 F 43.6 DEXA
Gasteyger et al.55 2006 LAGB Obs 17.5 29.7 52 36 F 43.8 DEXA
Pugnale et al.53 2003 LAGB Obs 17.8 18.5 26 31 F 43.6 DEXA
Giusti et al.56 2005 LAGB Obs 17.9 39.1 104 37 F 43.7 DEXA
Giusti et al.57 2004 LAGB Obs 18.7 18.7 26 31 F 40.5 DEXA
Giusti et al.56 2005 LAGB Obs 19.3 19.2 26 37 F 43.7 DEXA
Gasteyger et al.55 2006 LAGB Obs 19.7 19.3 26 36 F 43.8 DEXA
Garrapa et al.58 2005 LAGB Obs 23.6 23.3 26 15   42.2 DEXA
  1. Abbreviations: BPD, biliopancreatic diversion; CCT, clinical controlled trial; DEXA, dual energy X-ray absorptiometry; LAGB, laparoscopic adjustable gastric banding; Obs, observational; RCT, randomized controlled trial; RYGB, roux en Y gastric bypass; TBW, total body water.