Silverman et al.115115. Silverman EM, Sapala JA, Appelman HD. Regression of hepatic steatosis in morbidly obese persons after gastric bypass. Am J Clin Pathol. 1995;104(1):23-31.
|
91 |
RYGB |
Retrospective |
18.4 |
2b |
Biopsy |
Steatosis: 74% |
Mattar et al.116116. Mattar SG, Velcu LM, Rabinovitz M, et al. Surgically-induced weight loss significantly improves nonalcoholic fatty liver disease and the metabolic syndrome. Ann Surg. 2005;242(4):610-7; discussion 618-20.
|
70 |
RYGB |
Retrospective |
15 |
2b |
Biopsy |
Steatosis: 90.9% Steatohepatitis: 86.9% Fibrosis: 41.9% |
Liu et al.117117. Liu X, Lazenby AJ, Clements RH, et al. Resolution of nonalcoholic steatohepatitis after gastric bypass surgery. Obes Surg. 2007;17(4):486-92.
|
39 |
RYGB |
Retrospective |
18 |
2b |
Biopsy |
Steatosis: 96.8% Fibrosis: 50% |
Furuya et al.118118. Furuya CK Jr, de Oliveira CP, de Mello ES, et al. Effects of bariatric surgery on nonalcoholic fatty liver disease: preliminary findings after 2 years. J Gastroenterol Hepatol. 2007;22(4):510-4.
|
18 |
RYGB |
Prospective |
24 |
4 |
Biopsy |
Steatosis: 84% Fibrosis: 75% |
Moretto et al.119119. Moretto M, Kupski C, da Silva VD, Padoin AV, Mottin CC. Effect of bariatric surgery on liver fibrosis. Obes Surg. 2012;22(7):1044-9.
|
78 |
RYGB |
Retrospective |
12 |
2b |
Biopsy |
Fibrosis: 31.2% |
Vargas et al.120120. Vargas V, Allende H, Lecube A, et al. Surgically induced weight loss by gastric bypass improves non-alcoholic fatty liver disease in morbid patients with obesity. World J Hepatol. 2012;4(12):382-8.
|
26 |
RYGB |
Retrospective |
16 |
4 |
Biopsy |
Steatohepatitis: 84% |
Abdennour et al.121121. Abdennour M, Reggio S, Le Naour G, et al. Association of adipose tissue and liver fibrosis with tissue stiffness in morbid obesity: links with diabetes and BMI loss after gastric bypass. J Clin Endocrinol Metab. 2014;99(3):898-907.
|
243 |
RYGB |
Prospective |
12 |
2b |
Enzymes |
Steatosis: 85% |
Cazzo et al.122122. Cazzo E, Jimenez LS, Pareja JC, Chaim EA. Effect of Roux-en-Y gastric bypass on nonalcoholic fatty liver disease evaluated through NAFLD fibrosis score: a prospective study. Obes Surg. 2015;25(6):982-5.
|
63 |
RYGB |
Prospective |
12 |
2b |
Fibrosis score |
Fibrosis: 55% |
Luyckx et al.123123. Luyckx FH, Desaive C, Thiry A, et al. Liver abnormalities in severely obese subjects: effect of drastic weight loss after gastroplasty. Int J Obes Relat Metab Disord. 1998;22(3):222-6.
|
69 |
VBG |
Retrospective |
27 |
2b |
Biopsy |
Steatosis: 54.2% |
Stratopoulos et al.124124. Stratopoulos C, Papakonstantinou A, Terzis I, et al. Changes in liver histology accompanying massive weight loss after gastroplasty for morbid obesity. Obes Surg. 2005;15(8):1154-60.
|
51 |
VBG |
Retrospective |
18 |
2b |
Biopsy |
Steatosis: 82% Fibrosis: 6.2% |
Dixon et al.125125. Dixon JB, Bhathal PS, Hughes NR, O’Brien PE. Nonalcoholic fatty liver disease: Improvement in liver histological analysis with weight loss. Hepatology. 2004;39(6):1647-54.
|
36 |
GB |
Retrospective |
25.6 |
2b |
Biopsy |
Steatosis: 91.7% Fibrosis: 83.3% |
Phillips et al.126126. Phillips ML, Boase S, Wahlroos S, et al. Associates of change in liver fat content in the morbidly obese after laparoscopic gastric banding surgery. Diabetes Obes Metab. 2008;10(8):661-7.
|
29 |
GB |
Prospective |
3 |
2b |
MRI |
Steatosis: 70.4% |
Gastaldelli et al.127127. Gastaldelli A, Perego L, Paganelli M, et al. Elevated concentrations of liver enzymes and ferritin identify a new phenotype of insulin resistance: effect of weight loss after gastric banding. Obes Surg. 2009;19(1):80-6.
|
159 |
GB |
Prospective |
12 |
2b |
Enzymes |
Steatosis: 88% |
Karcz et al.128128. KarczWK, Krawczykowski D, KuestersS, et al. Influence of Sleeve Gastrectomy on NASH and Type 2 Diabetes Mellitus. J Obes. 2011;2011:765473.
|
236 |
SG |
Prospective |
12 |
2b |
Enzymes |
Steatosis: 83% |
Algooneh et al.129129. Algooneh A, Almazeedi S, Al-Sabah S, Ahmed M, Othman F. Nonalcoholic fatty liver disease resolution following sleeve gastrectomy. Surg Endosc. 2016;30(5):1983-7.
|
84 |
SG |
Retrospective |
39.6 |
2b |
US |
Steatosis: 56% |
Papadia et al.130130. Papadia F, Marinari GM, Camerini G, et al. Short-term liver function after biliopancreatic diversion. Obes Surg. 2003;13(5):752-5.
|
99 |
BPD-S |
Retrospective |
12 |
2b |
Enzymes |
Steatosis: 73% |
Ferrer-Marquez et al.131131. Ferrer Márquez M, Carvia Pousaillè C, Velasco Albendea J, et al. Influencia de la cirugía bariátrica en esteatosis hepática no alcohólica. Evaluación histológica [Influence of bariatric surgery on the non-alcoholic liver steatosis. A histological evaluation]. Cir Esp. 2009;86(2):94-100.
|
76 |
BPD-S |
Prospective |
12 |
2b |
Biopsy |
Steatosis: 85.5% Steatohepatitis: 83% Fibrosis: 52.6% |
Kral et al.132132. Kral JG, Thung SN, Biron S, et al. Effects of surgical treatment of the metabolic syndrome on liver fibrosis and cirrhosis. Surgery. 2004;135(1):48-58.
|
104 |
BPD-DS |
Retrospective |
41 |
2b |
Biopsy |
Fibrosis: 52.9% |
Keshishian et al.133133. Keshishian A, Zahriya K, Willes EB. Duodenal switch has no detrimental effects on hepatic function and improves hepatic steatohepatitis after 6 months. Obes Surg. 2005;15(10):1418-23.
|
697 |
BPD-DS |
Retrospective |
12 |
2b |
Enzymes |
Steatosis: 60% |