REFERENCES
2. Pories WJ, Swanson MS, MacDonald KG, et al. Who would have thought it? An operation proves to be the most effective therapy for adult-onset diabetes mellitus. Ann Surg. 1995:222;350-2.
3. Gastrointestinal surgery for severe obesity: National Institutes of Health Consensus Development Conference Statement. Am J Clin Nutr. 1992;55:615S-9.
4. American Society for Metabolic and Bariatric Surgery. Estimate of Bariatric Surgery Numbers, 2011-2023. Available from: https://asmbs.org/resources/estimate-of-bariatric-surgery-numbers/. [Last accessed on 26 May 2025].
5. Eisenberg D, Shikora SA, Aarts E, et al. 2022 American Society for Metabolic and Bariatric Surgery (ASMBS) and International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO): indications for metabolic and bariatric surgery. Surg Obes Relat Dis. 2022;18:1345-56.
6. Gargantilla Madera P, Arroyo Pardo N. Hasday: treatment of obesity in 10th century. Endocrinol Nutr. 2016;63:100-1.
7. Henrikson V. Can small bowel resection be defended as therapy for obesity? Obes Surg. 1994;4:54-55.
8. Celio AC, Pories WJ. A history of bariatric surgery: the maturation of a medical discipline. Surg Clin North Am. 2016;96:655-67.
9. Kremen AJ, Linner JH, Nelson CH. An experimental evaluation of the nutritional importance of proximal and distal small intestine. Ann Surg. 1954;140:439-48.
11. Friedman MN, Sancetta AJ, Magovern GJ. The amelioration of diabetes mellitus following subtotal gastrectomy. Surg Gynecol Obstet. 1955;100:201-204.
12. Payne JH, Dewind LT, Commons RR. Metabolic observations in patients with jejunocolic shunts. Am J Surg. 1963;106:273-89.
13. Buchwald H. Lowering of cholesterol absorption and blood levels by ileal exclusion. experimental basis and preliminary clinical report. Circulation. 1964;29:713-20.
14. Buchwald H. Vitamin b12 absorption deficiency following bypass of the ileum. Am J Dig Dis. 1964;9:755-9.
15. Buchwald H, Varco RL. Ileal bypass in patients with hypercholesterolemia and atherosclerosis. Preliminary report on therapeutic potential. JAMA. 1966;196:627-30.
16. Griffen WO Jr, Young VL, Stevenson CC. A prospective comparison of gastric and jejunoileal bypass procedures for morbid obesity. Ann Surg. 1977;186:500-9.
18. Alden JF. Gastric and jejunoileal bypass. A comparison in the treatment of morbid obesity. Arch Surg. 1977;112:799-806.
19. Baker MT. The history and evolution of bariatric surgical procedures. Surg Clin North Am. 2011;91:1181-201.
20. Casal MA. [Cesar Roux and his Roux-en-Y anastomosis]. Acta Gastroenterol Latinoam. 1993;23:175-85. (in Spanish).
21. Pories WJ, Flickinger EG, Meelheim D, Van Rij AM, Thomas FT. The effectiveness of gastric bypass over gastric partition in morbid obesity: consequence of distal gastric and duodenal exclusion. Ann Surg. 1982;196:389-99.
22. Alder RL, Terry BE. Measurement and standardization of the gastric pouch in gastric bypass. Surg Gynecol Obstet. 1977;144:762-3.
23. Torres JC, Oca CF, Garrison RN. Gastric bypass: Roux-en-Y gastrojejunostomy from the lesser curvature. South Med J. 1983;76:1217-21.
24. Saber AA, Elgamal MH, McLeod MK. Bariatric surgery: the past, present, and future. Obes Surg. 2008;18:121-8.
25. Salmon PA. Gastroplasty with distal gastric bypass: a new and more successful weight loss operation for the morbidly obese. Can J Surg. 1988;31:111-3.
27. Scopinaro N, Gianetta E, Civalleri D, Bonalumi U, Bachi V. Bilio-pancreatic bypass for obesity: II. Initial experience in man. Br J Surg. 1979;66:618-20.
28. Fobi M. Why the operation I prefer is silastic ring vertical gastric bypass. Obes Surg. 1991;1:423-6.
29. Sugerman HJ, Kellum JM, DeMaria EJ. Conversion of proximal to distal gastric bypass for failed gastric bypass for superobesity. J Gastrointest Surg. 1997;1:517-24.
30. Wittgrove AC, Clark GW, Tremblay LJ. Laparoscopic gastric bypass, Roux-en-Y: preliminary report of five cases. Obes Surg. 1994;4:353-7.
31. Wood MF, Sapala JA, Sapala MA, Schuhknecht MP, Flake TM. Micropouch gastric bypass: indications for gastrostomy tube placement in the bypassed stomach. Obes Surg. 2000;10:413-9.
32. Higa KD, Boone KB, Ho T, Davies OG. Laparoscopic Roux-en-Y gastric bypass for morbid obesity: technique and preliminary results of our first 400 patients. Arch Surg. 2000;135:1029-33.
33. Nguyen NT, Goldman C, Rosenquist CJ, et al. Laparoscopic versus open gastric bypass: a randomized study of outcomes, quality of life, and costs. Ann Surg. 2001;234:279-89.
34. Escalona A, Devaud N, Pérez G, et al. Antecolic versus retrocolic alimentary limb in laparoscopic Roux-en-Y gastric bypass: a comparative study. Surg Obes Relat Dis. 2007;3:423-7.
35. Al Harakeh AB, Kallies KJ, Borgert AJ, Kothari SN. Bowel obstruction rates in antecolic/antegastric versus retrocolic/retrogastric Roux limb gastric bypass: a meta-analysis. Surg Obes Relat Dis. 2016;12:194-8.
36. Cadiere GB, Himpens J, Vertruyen M, Favretti F. The world’s first obesity surgery performed by a surgeon at a distance. Obes Surg. 1999;9:206-9.
37. Talamini MA, Chapman S, Horgan S, Melvin WS; Academic Robotics Group. A prospective analysis of 211 robotic-assisted surgical procedures. Surg Endosc. 2003;17:1521-4.
38. Mohr CJ, Nadzam GS, Curet MJ. Totally robotic Roux-en-Y gastric bypass. Arch Surg. 2005;140:779-86.
39. Read MD, Torikashvili J, Janjua H, Grimsley EA, Kuo PC, Docimo S. The downtrending cost of robotic bariatric surgery: a cost analysis of 47,788 bariatric patients. J Robot Surg. 2024;18:63.
40. Senatore AM, Mongelli F, Mion FU, Lucchelli M, Garofalo F. Costs of robotic and laparoscopic bariatric surgery: a retrospective propensity score-matched analysis. Obes Surg. 2024;34:3694-702.
41. Bertoni MV, Marengo M, Garofalo F, et al. Robotic-assisted versus laparoscopic revisional bariatric surgery: a systematic review and meta-analysis on perioperative outcomes. Obes Surg. 2021;31:5022-33.
42. Coker A, Sebastian R, Tatum J, et al. Do advances in technology translate to improved outcomes? Comparing robotic bariatric surgery outcomes over two-time intervals utilizing the MBSAQIP database. Surg Endosc. 2023;37:7970-9.
43. Aleassa EM, Papasavas P, Augustin T, et al; Clinical Issues Committee of the American Society for Metabolic and Bariatric Surgery. American society for metabolic and bariatric surgery literature review on the effect of Roux-en-Y gastric bypass limb lengths on outcomes. Surg Obes Relat Dis. 2023;19:755-62.
44. Obeid NR, Malick W, Concors SJ, Fielding GA, Kurian MS, Ren-Fielding CJ. Long-term outcomes after Roux-en-Y gastric bypass: 10- to 13-year data. Surg Obes Relat Dis. 2016;12:11-20.
45. Kothari SN, Borgert AJ, Kallies KJ, Baker MT, Grover BT. Long-term (>10-year) outcomes after laparoscopic Roux-en-Y gastric bypass. Surg Obes Relat Dis. 2017;13:972-8.
46. McClelland PH, Jawed M, Kabata K, Zenilman ME, Gorecki P. Long-term outcomes following laparoscopic Roux-en-Y gastric bypass: weight loss and resolution of comorbidities at 15 years and beyond. Surg Endosc. 2023;37:9427-40.
47. Courcoulas AP, King WC, Belle SH, et al. Seven-year weight trajectories and health outcomes in the longitudinal assessment of bariatric surgery (LABS) study. JAMA Surg. 2018;153:427-34.
48. DeMaria EJ, Pate V, Warthen M, Winegar DA. Baseline data from American society for metabolic and bariatric surgery-designated bariatric surgery centers of excellence using the bariatric outcomes longitudinal database. Surg Obes Relat Dis. 2010;6:347-55.
49. Edholm D, Svensson F, Näslund I, Karlsson FA, Rask E, Sundbom M. Long-term results 11 years after primary gastric bypass in 384 patients. Surg Obes Relat Dis. 2013;9:708-13.
50. Angrisani L, Ferraro L, Santonicola A, Palma R, Formisano G, Iovino P. Long-term results of laparoscopic Roux-en-Y gastric bypass for morbid obesity: 105 patients with minimum follow-up of 15 years. Surg Obes Relat Dis. 2021;17:727-36.
51. N Engl J Med 2004. pp. 2683-93. Sjöström L, Lindroos AK, Peltonen M, et al; Swedish Obese Subjects Study Scientific Group. Lifestyle, diabetes, and cardiovascular risk factors 10 years after bariatric surgery. N Engl J Med. 2004;351:2683-93.
52. Courcoulas AP, Patti ME, Hu B, et al. Long-term outcomes of medical management vs bariatric surgery in type 2 diabetes. JAMA. 2024;331:654-64.
53. Hage K, Ikemiya K, Ghusn W, et al. Type 2 diabetes remission after Roux-en-Y gastric bypass: a multicentered experience with long-term follow-up. Surg Obes Relat Dis. 2023;19:1339-45.
54. Yu Z, Li P, Li P, Zhang H, Zhang Y. Meta-analysis of long-term relapse rate of type 2 diabetes following initial remission after Roux-en-Y gastric bypass. Obes Surg. 2021;31:5034-43.
55. Cui BB, Wang GH, Li PZ, Li WZ, Zhu LY, Zhu SH. Long-term outcomes of Roux-en-Y gastric bypass versus medical therapy for patients with type 2 diabetes: a meta-analysis of randomized controlled trials. Surg Obes Relat Dis. 2021;17:1334-43.
56. Nguyen NT, Magno CP, Lane KT, Hinojosa MW, Lane JS. Association of hypertension, diabetes, dyslipidemia, and metabolic syndrome with obesity: findings from the National Health and Nutrition Examination Survey, 1999 to 2004. J Am Coll Surg. 2008;207:928-34.
57. Dogan K, Betzel B, Homan J, et al. Long-term effects of laparoscopic Roux-en-Y gastric bypass on diabetes mellitus, hypertension and dyslipidaemia in morbidly obese patients. Obes Surg. 2014;24:1835-42.
58. Guimarães M, Osório C, Silva D, et al. How sustained is Roux-en-Y gastric bypass long-term efficacy? : Roux-en-Y Gastric Bypass efficacy. Obes Surg. 2021;31:3623-9.
59. Salminen P, Helmiö M, Ovaska J, et al. Effect of laparoscopic sleeve gastrectomy vs laparoscopic Roux-en-Y gastric bypass on weight loss at 5 years among patients with morbid obesity: the SLEEVEPASS randomized clinical trial. JAMA. 2018;319:241-54.
60. Peterli R, Wölnerhanssen BK, Peters T, et al. Effect of laparoscopic sleeve gastrectomy vs laparoscopic Roux-en-Y gastric bypass on weight loss in patients with morbid obesity: the SM-BOSS randomized clinical trial. JAMA. 2018;319:255-65.
61. Bays H, Kothari SN, Azagury DE, et al. Lipids and bariatric procedures Part 2 of 2: scientific statement from the American Society for Metabolic and Bariatric Surgery (ASMBS), the National Lipid Association (NLA), and Obesity Medicine Association (OMA). Surg Obes Relat Dis. 2016;12:468-95.
62. Fernandez AZ Jr, DeMaria EJ, Tichansky DS, et al. Experience with over 3,000 open and laparoscopic bariatric procedures: multivariate analysis of factors related to leak and resultant mortality. Surg Endosc. 2004;18:193-7.
63. Sjöström L. Review of the key results from the Swedish Obese Subjects (SOS) trial - a prospective controlled intervention study of bariatric surgery. J Intern Med. 2013;273:219-34.
64. Cardoso L, Rodrigues D, Gomes L, Carrilho F. Short- and long-term mortality after bariatric surgery: a systematic review and meta-analysis. Diabetes Obes Metab. 2017;19:1223-32.
65. Flum DR, Salem L, Elrod JA, Dellinger EP, Cheadle A, Chan L. Early mortality among medicare beneficiaries undergoing bariatric surgical procedures. JAMA. 2005;294:1903-8.
66. Benotti P, Wood GC, Winegar DA, et al. Risk factors associated with mortality after Roux-en-Y gastric bypass surgery. Ann Surg. 2014;259:123-30.
67. Ballesta C, Berindoague R, Cabrera M, Palau M, Gonzales M. Management of anastomotic leaks after laparoscopic Roux-en-Y gastric bypass. Obes Surg. 2008;18:623-30.
68. Mason EE, Renquist KE, Jiang D. Perioperative risks and safety of surgery for severe obesity. Am J Clin Nutr. 1992;55:573S-6.
69. De Maria EJ, Sugerman HJ, Kellum JM, Meador JG, Wolfe LG. Results of 281 consecutive total laparoscopic Roux-en-Y gastric bypasses to treat morbid obesity. Ann Surg. 2002;235:640-5.
70. Harakeh AB. Complications of laparoscopic Roux-en-Y gastric bypass. Surg Clin North Am. 2011;91:1225-37.
71. Lee MG, Provost DA, Jones DB. Use of fibrin sealant in laparoscopic gastric bypass for the morbidly obese. Obes Surg. 2004;14:1321-6.
72. Fullum TM, Aluka KJ, Turner PL. Decreasing anastomotic and staple line leaks after laparoscopic Roux-en-Y gastric bypass. Surg Endosc. 2009;23:1403-8.
73. Odovic M, Clerc D, Demartines N, Suter M. Early bleeding after laparoscopic Roux-en-Y gastric bypass: incidence, risk factors, and management - a 21-year experience. Obes Surg. 2022;32:3232-8.
74. Zafar SN, Miller K, Felton J, Wise ES, Kligman M. Postoperative bleeding after laparoscopic Roux en Y gastric bypass: predictors and consequences. Surg Endosc. 2019;33:272-80.
75. Ioffe OY, Nevmerzhytskyi VO, Kryvopustov MS, et al. Improving the management of morbidly obese patients with postoperative bleeding undergoing Roux-en-Y gastric bypass. Wiad Lek. 2024;77:1127-33.
76. Mabeza RM, Lee C, Verma A, et al. Factors and outcomes associated with venous thromboembolism following bariatric surgery. Am Surg. 2022;88:2525-30.
77. Mason EE, Renquist KE, Huang YH, Jamal M, Samuel I. Causes of 30-day bariatric surgery mortality: with emphasis on bypass obstruction. Obes Surg. 2007;17:9-14.
78. Escalante-Tattersfield T, Tucker O, Fajnwaks P, Szomstein S, Rosenthal RJ. Incidence of deep vein thrombosis in morbidly obese patients undergoing laparoscopic Roux-en-Y gastric bypass. Surg Obes Relat Dis. 2008;4:126-30.
79. Aminian A, Andalib A, Khorgami Z, et al. Who should get extended thromboprophylaxis after bariatric surgery?: A risk assessment tool to guide indications for post-discharge pharmacoprophylaxis. Ann Surg. 2017;265:143-50.
80. Finks JF, English WJ, Carlin AM, et al; Michigan Bariatric Surgery Collaborative, Center for Healthcare Outcomes and Policy. Predicting risk for venous thromboembolism with bariatric surgery: results from the Michigan Bariatric Surgery Collaborative. Ann Surg. 2012;255:1100-4.
81. Dang JT, Switzer N, Delisle M, et al. Predicting venous thromboembolism following laparoscopic bariatric surgery: development of the BariClot tool using the MBSAQIP database. Surg Endosc. 2019;33:821-31.
82. Aminian A, Vosburg RW, Altieri MS, Hinojosa MW, Khorgami Z; American Society for Metabolic and Bariatric Surgery Clinical Issues Committee. The American Society for Metabolic and Bariatric Surgery (ASMBS) updated position statement on perioperative venous thromboembolism prophylaxis in bariatric surgery. Surg Obes Relat Dis. 2022;18:165-74.
83. Arias PM, Domeniconi EA, García M, Esquivel CM, Martínez Lascano F, Foscarini JM. Micronutrient deficiencies after Roux-en-Y gastric bypass: long-term results. Obes Surg. 2020;30:169-73.
84. van der Burgh Y, Boerboom A, de Boer H, Witteman B, Berends F, Hazebroek E. Weight loss and malnutrition after conversion of the primary Roux-en-Y gastric bypass to distal gastric bypass in patients with morbid obesity. Surg Obes Relat Dis. 2020;16:381-8.
85. van der Beek ES, Monpellier VM, Eland I, Tromp E, van Ramshorst B. Nutritional deficiencies in gastric bypass patients; incidence, time of occurrence and implications for post-operative surveillance. Obes Surg. 2015;25:818-23.
86. Bjerkan KK, Sandvik J, Nymo S, et al. Vitamin and mineral deficiency 12 years after Roux-en-Y gastric bypass a cross-sectional multicenter study. Obes Surg. 2023;33:3178-85.
87. Mechanick JI, Apovian C, Brethauer S, et al. Clinical practice guidelines for the perioperative nutrition, metabolic, and nonsurgical support of patients undergoing bariatric procedures - 2019 update: cosponsored by American Association of Clinical Endocrinologists/American College of Endocrinology, The Obesity Society, American Society for Metabolic & Bariatric Surgery, Obesity Medicine Association, and American Society of Anesthesiologists. Surg Obes Relat Dis. 2020;16:175-247.
88. Brockmeyer, JR, Kothari, SN. Marginal and peptic ulcers: prevention, diagnosis, and management. In: Herron D. Editor. Bariatric surgery complications and emergencies. New York: Springer; 2016. pp. 147-159.
89. Abell TL, Minocha A. Gastrointestinal complications of bariatric surgery: diagnosis and therapy. Am J Med Sci. 2006;331:214-8.
90. Coblijn UK, Goucham AB, Lagarde SM, Kuiken SD, van Wagensveld BA. Development of ulcer disease after Roux-en-Y gastric bypass, incidence, risk factors, and patient presentation: a systematic review. Obes Surg. 2014;24:299-309.
91. Csendes A, Burgos AM, Altuve J, Bonacic S. Incidence of marginal ulcer 1 month and 1 to 2 years after gastric bypass: a prospective consecutive endoscopic evaluation of 442 patients with morbid obesity. Obes Surg. 2009;19:135-8.
92. Gumbs AA, Duffy AJ, Bell RL. Incidence and management of marginal ulceration after laparoscopic Roux-Y gastric bypass. Surg Obes Relat Dis. 2006;2:460-3.
93. Altieri MS, Carter J, Aminian A, et al; Clinical Issues Committee of the American Society for Metabolic and Bariatric Surgery. American Society for Metabolic and Bariatric Surgery literature review on prevention, diagnosis, and management of internal hernias after Roux-en-Y gastric bypass. Surg Obes Relat Dis. 2023;19:763-71.
94. Kristensen SD, Gormsen J, Naver L, Helgstrand F, Floyd AK. Randomized clinical trial on closure versus non-closure of mesenteric defects during laparoscopic gastric bypass surgery. Br J Surg. 2021;108:145-51.
95. Aghajani E, Nergaard BJ, Leifson BG, Hedenbro J, Gislason H. The mesenteric defects in laparoscopic Roux-en-Y gastric bypass: 5 years follow-up of non-closure versus closure using the stapler technique. Surg Endosc. 2017;31:3743-8.
96. Frøkjær JB, Jensen WN, Holt G, Omar HK, Olesen SS. The diagnostic performance and interrater agreement of seven CT findings in the diagnosis of internal hernia after gastric bypass operation. Abdom Radiol. 2018;43:3220-6.
97. Zaigham H, Ekelund M, Regnér S. Long-term follow-up and risk of recurrence of internal herniation after Roux-en-Y gastric bypass. Obes Surg. 2023;33:2311-6.
98. Dai Y, Luo B, Li W. Incidence and risk factors for cholelithiasis after bariatric surgery: a systematic review and meta-analysis. Lipids Health Dis. 2023;22:5.
99. Leyva-Alvizo A, Arredondo-Saldaña G, Leal-Isla-Flores V, et al; ASMBS Foregut Committee. Systematic review of management of gallbladder disease in patients undergoing minimally invasive bariatric surgery. Surg Obes Relat Dis. 2020;16:158-64.
100. Xia C, Wang M, Lv H, et al. The safety and necessity of concomitant cholecystectomy during bariatric surgery in patients with obesity: a systematic review and meta-analysis. Obes Surg. 2021;31:5418-26.
101. Pizza F, D’Antonio D, Lucido FS, et al. The role of ursodeoxycholic acid (UDCA) in cholelithiasis management after one anastomosis gastric bypass (OAGB) for morbid obesity: results of a monocentric randomized controlled trial. Obes Surg. 2020;30:4315-24.
102. Edwards MA, Powers K, Vosburg RW, et al. American Society for Metabolic and Bariatric Surgery: postoperative care pathway guidelines for Roux-en-Y gastric bypass. Surg Obes Relat Dis. 2025;21:523-36.
103. Callahan ZM, Su B, Kuchta K, Linn J, Carbray J, Ujiki M. Five-year results of endoscopic gastrojejunostomy revision (transoral outlet reduction) for weight gain after gastric bypass. Surg Endosc. 2020;34:2164-71.
104. Bazarbashi AN, Dolan RD, McCarty TR, Jirapinyo P, Thompson CC. Endoscopic revision of gastrojejunal anastomosis for the treatment of dumping syndrome in patients with Roux-en-Y gastric bypass: a systematic review and meta-analysis. Surg Endosc. 2022;36:4099-107.
105. Dolan RD, Jirapinyo P, Thompson CC. Endoscopic versus surgical gastrojejunal revision for weight regain in Roux-en-Y gastric bypass patients: 5-year safety and efficacy comparison. Gastrointest Endosc. 2021;94:945-50.
106. Gallo AS, DuCoin CG, Berducci MA, et al. Endoscopic revision of gastric bypass: holy Grail or Epic fail? Surg Endosc. 2016;30:3922-7.
107. Fischbach RN, Talaska F, Dun N, Barnett M. A manual of laboratory and diagnostic tests. 9th ed. Lippincott Williams & Wilkins; 2015. Available from: https://www.amazon.com/Manual-Laboratory-Diagnostic-Tests/dp/1451190891#. [Last accessed on 26 May 2025].
