Lygia Stewart, MD

Title(s)Professor, Surgery
SchoolSchool of Medicine
AddressVAMC
San Francisco CA 94121
Phone415-750-2057
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    Collapse Biography 
    Collapse Education and Training
    University of California, San FranciscoClinical Fellowship
    University of California, San Francisco, CA2018Diversity, Equity, and Inclusion Champion Training

    Collapse Bibliographic 
    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Alteration in the gut microbiome is associated with changes in bone metabolism after laparoscopic sleeve gastrectomy. J Bone Miner Res. 2024 Jan 04. Wu KC, McCauley KE, Lynch SV, Nayak RR, King NJ, Patel S, Kim TY, Condra K, Fadrosh D, Nguyen D, Lin DL, Lynch K, Rogers SJ, Carter JT, Posselt AM, Stewart L, Schafer AL. PMID: 38477719.
      View in: PubMed   Mentions:    Fields:    
    2. Intestinal Calcium Absorption Decreases After Laparoscopic Sleeve Gastrectomy Despite Optimization of Vitamin D Status. J Clin Endocrinol Metab. 2023 01 17; 108(2):351-360. Wu KC, Cao S, Weaver CM, King NJ, Patel S, Kim TY, Black DM, Kingman H, Shafer MM, Rogers SJ, Stewart L, Carter JT, Posselt AM, Schafer AL. PMID: 36196648; PMCID: PMC10091486.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    3. Prebiotic to Improve Calcium Absorption in Postmenopausal Women After Gastric Bypass: A Randomized Controlled Trial. J Clin Endocrinol Metab. 2022 03 24; 107(4):1053-1064. Wu KC, Cao S, Weaver CM, King NJ, Patel S, Kingman H, Sellmeyer DE, McCauley K, Li D, Lynch SV, Kim TY, Black DM, Shafer MM, Özçam M, Lin DL, Rogers SJ, Stewart L, Carter JT, Posselt AM, Schafer AL. PMID: 34888663; PMCID: PMC8947782.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    4. Mesh on the move: a case report of total transmural surgical mesh migration causing bowel obstruction. Clin J Gastroenterol. 2021 Feb; 14(1):136-140. Leach JR, Manoukian B, Stewart L. PMID: 33241525.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    5. Ampullary stenosis and choledocholithiasis post Roux-En-Y gastric bypass: challenges of biliary access and intervention. HPB (Oxford). 2020 10; 22(10):1496-1503. Wisneski AD, Carter J, Nakakura EK, Posselt A, Rogers SJ, Cello JP, Arain M, Kirkwood KS, Hirose K, Stewart L, Corvera CU. PMID: 32340857.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    6. Hyponatremia is associated with more severe biliary disease. World J Gastrointest Surg. 2020 Feb 27; 12(2):45-54. Zobel MJ, Stewart L. PMID: 32128028; PMCID: PMC7044107.
      View in: PubMed   Mentions: 2  
    7. Increases in PYY and uncoupling of bone turnover are associated with loss of bone mass after gastric bypass surgery. Bone. 2020 02; 131:115115. Kim TY, Shoback DM, Black DM, Rogers SJ, Stewart L, Carter JT, Posselt AM, King NJ, Schafer AL. PMID: 31689523; PMCID: PMC6930344.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    8. Roux-en-Y gastric bypass is a safe and effective option that improves major Co-Morbidities associated with obesity in an older, veteran population. Am J Surg. 2019 10; 218(4):684-688. Lyo V, Schafer AL, Stewart L. PMID: 31399194; PMCID: PMC6996506.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    9. Changes in Lean Mass, Absolute and Relative Muscle Strength, and Physical Performance After Gastric Bypass Surgery. J Clin Endocrinol Metab. 2019 03 01; 104(3):711-720. Alba DL, Wu L, Cawthon PM, Mulligan K, Lang T, Patel S, King NJ, Carter JT, Rogers SJ, Posselt AM, Stewart L, Shoback DM, Schafer AL. PMID: 30657952; PMCID: PMC6339456.
      View in: PubMed   Mentions: 31     Fields:    Translation:Humans
    10. Patient Co-Morbidity and Functional Status Influence the Occurrence of Hospital Acquired Conditions More Strongly than Hospital Factors. J Gastrointest Surg. 2019 01; 23(1):163-172. Moghadamyeghaneh Z, Stamos MJ, Stewart L. PMID: 30225796.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    11. Minimal-invasive approach to pancreatoduodenectomy is associated with lower early postoperative morbidity. Am J Surg. 2019 04; 217(4):718-724. Moghadamyeghaneh Z, Sleeman D, Stewart L. PMID: 30509456.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    12. Effects of Gastric Bypass Surgery on Bone Mass and Microarchitecture Occur Early and Particularly Impact Postmenopausal Women. J Bone Miner Res. 2018 06; 33(6):975-986. Schafer AL, Kazakia GJ, Vittinghoff E, Stewart L, Rogers SJ, Kim TY, Carter JT, Posselt AM, Pasco C, Shoback DM, Black DM. PMID: 29281126; PMCID: PMC6002877.
      View in: PubMed   Mentions: 34     Fields:    Translation:Humans
    13. Bone Marrow Fat Changes After Gastric Bypass Surgery Are Associated With Loss of Bone Mass. J Bone Miner Res. 2017 Nov; 32(11):2239-2247. Kim TY, Schwartz AV, Li X, Xu K, Black DM, Petrenko DM, Stewart L, Rogers SJ, Posselt AM, Carter JT, Shoback DM, Schafer AL. PMID: 28791737; PMCID: PMC5685913.
      View in: PubMed   Mentions: 30     Fields:    Translation:Humans
    14. Intestinal Calcium Absorption Decreases Dramatically After Gastric Bypass Surgery Despite Optimization of Vitamin D Status. J Bone Miner Res. 2015 Aug; 30(8):1377-85. Schafer AL, Weaver CM, Black DM, Wheeler AL, Chang H, Szefc GV, Stewart L, Rogers SJ, Carter JT, Posselt AM, Shoback DM, Sellmeyer DE. PMID: 25640580; PMCID: PMC4593653.
      View in: PubMed   Mentions: 61     Fields:    Translation:HumansCTClinical Trials
    15. Distractions during resident handoffs: incidence, sources, and influence on handoff quality and effectiveness. JAMA Surg. 2015 May; 150(5):396-401. Anderson CE, Nicksa GA, Stewart L. PMID: 25738805.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    16. Innovative approach using interprofessional simulation to educate surgical residents in technical and nontechnical skills in high-risk clinical scenarios. JAMA Surg. 2015 Mar 01; 150(3):201-7. Nicksa GA, Anderson C, Fidler R, Stewart L. PMID: 25565037.
      View in: PubMed   Mentions: 18     Fields:    Translation:Humans
    17. Importance of nutrition visits after gastric bypass surgery for American veterans, San Francisco, 2004-2010. Prev Chronic Dis. 2014 Dec 24; 11:E226. Win AZ, Ceresa C, Schafer AL, Mak P, Stewart L. PMID: 25539130; PMCID: PMC4279866.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    18. Iatrogenic biliary injuries: identification, classification, and management. Surg Clin North Am. 2014 Apr; 94(2):297-310. Stewart L. PMID: 24679422.
      View in: PubMed   Mentions: 23     Fields:    Translation:Humans
    19. The association between body mass index and severe biliary infections: a multivariate analysis. Am J Surg. 2012 Nov; 204(5):574-9. Stewart L, Griffiss JM, Jarvis GA, Way LW. PMID: 22892201.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    20. Laparoscopic treatment of liver tumours using a two-needle probe bipolar radiofrequency ablation device. HPB (Oxford). 2011 Sep; 13(9):656-64. Alemi F, Kwon E, Chiu J, Aoki H, Stewart L, Corvera CU. PMID: 21843267; PMCID: PMC3183451.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    21. Yield and performance characteristics of endoscopic ultrasound-guided fine needle aspiration for diagnosing upper GI tract stromal tumors. Dig Dis Sci. 2011 Jun; 56(6):1757-62. Watson RR, Binmoeller KF, Hamerski CM, Shergill AK, Shaw RE, Jaffee IM, Stewart L, Shah JN. PMID: 21360279.
      View in: PubMed   Mentions: 50     Fields:    Translation:Humans
    22. Bringing the skills laboratory home: an affordable webcam-based personal trainer for developing laparoscopic skills. J Surg Educ. 2011 Mar-Apr; 68(2):105-9. Kobayashi SA, Jamshidi R, O'Sullivan P, Palmer B, Hirose S, Stewart L, Kim EH. PMID: 21338965.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    23. Hepatic surgery at a VA tertiary medical center: lessons learned. Am J Surg. 2010 Nov; 200(5):591-5. Alemi F, Kwon E, Freise C, Kang SM, Hirose R, Stewart L, Corvera CU. PMID: 21056134.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    24. The efficacy of medical team training: improved team performance and decreased operating room delays: a detailed analysis of 4863 cases. Ann Surg. 2010 Sep; 252(3):477-83; discussion 483-5. Wolf FA, Way LW, Stewart L. PMID: 20739848.
      View in: PubMed   Mentions: 23     Fields:    Translation:Humans
    25. Operative reports: form and function. Arch Surg. 2010 Sep; 145(9):865-71. Stewart L, Hunter JG, Wetter A, Chin B, Way LW. PMID: 20855757.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    26. Laparoscopic bile duct injuries: timing of surgical repair does not influence success rate. A multivariate analysis of factors influencing surgical outcomes. HPB (Oxford). 2009 Sep; 11(6):516-22. Stewart L, Way LW. PMID: 19816617; PMCID: PMC2756640.
      View in: PubMed   Mentions: 31     Fields:    
    27. Neuroendocrine tumors of the ampulla of Vater: biological behavior and surgical management. Arch Surg. 2009 Jun; 144(6):527-31. Carter JT, Grenert JP, Rubenstein L, Stewart L, Way LW. PMID: 19528385.
      View in: PubMed   Mentions: 23     Fields:    Translation:Humans
    28. Tumors of the ampulla of vater: histopathologic classification and predictors of survival. J Am Coll Surg. 2008 Aug; 207(2):210-8. Carter JT, Grenert JP, Rubenstein L, Stewart L, Way LW. PMID: 18656049.
      View in: PubMed   Mentions: 56     Fields:    Translation:Humans
    29. Implementation of a multidisciplinary treatment team for hepatocellular cancer at a Veterans Affairs Medical Center improves survival. HPB (Oxford). 2008; 10(6):405-11. Chang TT, Sawhney R, Monto A, Davoren JB, Kirkland JG, Stewart L, Corvera CU. PMID: 19088925; PMCID: PMC2597312.
      View in: PubMed   Mentions: 35     Fields:    
    30. Elderly patients have more severe biliary infections: influence of complement-killing and induction of TNFalpha production. Surgery. 2008 Jan; 143(1):103-12. Stewart L, Grifiss JM, Jarvis GA, Way LW. PMID: 18154938.
      View in: PubMed   Mentions: 5     Fields:    Translation:HumansCells
    31. Endoscopic treatment of Boerhaave syndrome using a removable self-expandable plastic stent. J Clin Gastroenterol. 2007 Oct; 41(9):863-4. Ghassemi KF, Rodriguez HJ, Vesga L, Stewart L, McQuaid KR, Shah JN. PMID: 17881934.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    32. Bacteria entombed in the center of cholesterol gallstones induce fewer infectious manifestations than bacteria in the matrix of pigment stones. J Gastrointest Surg. 2007 Oct; 11(10):1298-308. Stewart L, Griffiss JM, Jarvis GA, Way LW. PMID: 17653596.
      View in: PubMed   Mentions: 4     Fields:    Translation:HumansCells
    33. Gallstones containing bacteria are biofilms: bacterial slime production and ability to form pigment solids determines infection severity and bacteremia. J Gastrointest Surg. 2007 Aug; 11(8):977-83; discussion 983-4. Stewart L, Griffiss JM, Jarvis GA, Way LW. PMID: 17546479.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    34. Biliary bacterial factors determine the path of gallstone formation. Am J Surg. 2006 Nov; 192(5):598-603. Stewart L, Grifiss JM, Jarvis GA, Way LW. PMID: 17071191.
      View in: PubMed   Mentions: 23     Fields:    Translation:HumansCells
    35. Bipolar pulse coagulation for resection of the cirrhotic liver. J Surg Res. 2006 Dec; 136(2):182-6. Corvera CU, Dada SA, Kirkland JG, Garrett RD, Way LW, Stewart L. PMID: 17054993.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    36. Local resection of ampullary tumors. J Gastrointest Surg. 2005 Dec; 9(9):1300-6. Meneghetti AT, Safadi B, Stewart L, Way LW. PMID: 16332486.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    37. Spectrum of gallstone disease in the veterans population. Am J Surg. 2005 Nov; 190(5):746-51. Stewart L, Griffiss JM, Way LW. PMID: 16226952.
      View in: PubMed   Mentions: 5     Fields:    Translation:HumansCells
    38. Right hepatic artery injury associated with laparoscopic bile duct injury: incidence, mechanism, and consequences. J Gastrointest Surg. 2004 Jul-Aug; 8(5):523-30; discussion 530-1. Stewart L, Robinson TN, Lee CM, Liu K, Whang K, Way LW. PMID: 15239985.
      View in: PubMed   Mentions: 58     Fields:    Translation:Humans
    39. Causes and prevention of laparoscopic bile duct injuries: analysis of 252 cases from a human factors and cognitive psychology perspective. Ann Surg. 2003 Apr; 237(4):460-9. Way LW, Stewart L, Gantert W, Liu K, Lee CM, Whang K, Hunter JG. PMID: 12677139; PMCID: PMC1514483.
      View in: PubMed   Mentions: 209     Fields:    Translation:Humans
    40. Cholangitis: bacterial virulence factors that facilitate cholangiovenous reflux and tumor necrosis factor-alpha production. J Gastrointest Surg. 2003 Feb; 7(2):191-8; discussion 198-9. Stewart L, Oesterle AL, Grifiss JM, Jarvis GA, Way LW. PMID: 12600443.
      View in: PubMed   Mentions: 4     Fields:    Translation:AnimalsCells
    41. Pathogenesis of pigment gallstones in Western societies: the central role of bacteria. J Gastrointest Surg. 2002 Nov-Dec; 6(6):891-903; discussion 903-4. Stewart L, Oesterle AL, Erdan I, Griffiss JM, Way LW. PMID: 12504229.
      View in: PubMed   Mentions: 21     Fields:    Translation:HumansCells
    42. Gram-negative bacteria killed by complement are associated with more severe biliary infections and produce more tumor necrosis factor-alpha in sera. Surgery. 2002 Aug; 132(2):408-14. Stewart L, Oesterle AL, Griffiss JM, Jarvis GA, Aagaard B, Way LW. PMID: 12219042.
      View in: PubMed   Mentions: 6     Fields:    Translation:HumansCells
    43. Patch testing to cosmetics and topical drugs. Am J Contact Dermat. 1996 Mar; 7(1):53-5. Stewart LA. PMID: 8796743.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
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