Kenneth McQuaid, MD
Professor
Medicine
School of Medicine

Kenneth R. McQuaid, MD is Professor and Vice-Chair of the Department of Medicine at the University of California, San Francisco and Chief of the Medical Service and Gastroenterology Division at the San Francisco VA Medical Center. He has an active clinical and research interest in gastrointestinal bleeding, inflammatory bowel disease, screening and surveillance of colorectal neoplasia, and endotherapies for obesity.

Awards

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• President, American Society for Gastrointestinal Endoscopy, 2016-2017
• Council of Master Clinicians, UCSF Department of Medicine, 2008
• Distinguished Clinician Award, American Gastroenterological Association, 2006
• Haile T. Debas Academy of Medical Educators, UCSF, 2003
• Mervin J. Goldman, MD Housestaff Teaching Award, San Francisco VA Medical Center, 1996
• Medicine Housestaff Teaching Award, UCSD, 1990
• Alpha Omega Alpha Society, UCSF, 1981
• Gold-Headed Cane Society, UCSF, 1981

Education & Training

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• Diversity, Equity, and Inclusion Champion Training University of California 2018
• Fellowship Gastroenterology University of California, San Francisco 1988
• Chief resident Internal Medicine Hennepin County Medical Center 1985
• Residency Internal Medicine Hennepin County Medical Center 1984
• M.D. School of Medicine University of California, San Francisco 1981
• B.S. Biology Stanford University 1977

Publications (88)

Top publication keywords:
DyspepsiaInflammatory Bowel DiseasesEndoscopyColonoscopyErgonomicsColoring AgentsColonic PolypsCatharticsGastroenterologyOccupational DiseasesAdenomaMusculoskeletal DiseasesPlatelet Aggregation InhibitorsEndoscopy, Digestive SystemColorectal Neoplasms

• Longitudinal outcomes of the endoscopic resection of nonpolypoid dysplastic lesions in patients with inflammatory bowel disease.
  Gastrointestinal endoscopy 2023 Kaltenbach T, Holmes I, Nguyen-Vu T, Malvar C, Balitzer D, Fong D, Fu A, Shergill A, McQuaid K, Soetikno R
• Biomechanical risk factors associated with distal upper extremity musculoskeletal disorders in endoscopists performing colonoscopy.
  Gastrointestinal endoscopy 2020 Shergill AK, Rempel D, Barr A, Lee D, Pereira A, Hsieh CM, McQuaid K, Harris-Adamson C
• Impact of observational training on endoscopic mucosal resection outcomes and competency for large colorectal polyps: single endoscopist experience.
  Endoscopy international open 2020 Lee JK, Kidambi TD, Kaltenbach T, Bhat YM, Shergill A, McQuaid KR, Terdiman JP, Soetikno RM
• A Terminal Event. Reply.
  The New England journal of medicine 2019 Lai AR, Gensler LS, McQuaid K
• A Terminal Event.
  The New England journal of medicine 2019 Lai AR, Sheu L, Gensler LS, McQuaid K, Dhaliwal G

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• Ergonomic endoscopy: An oxymoron or realistic goal?
  Gastrointestinal endoscopy 2019 Shergill AK, McQuaid KR
• A multimodal (FACILE) classification for optical diagnosis of inflammatory bowel disease associated neoplasia.
  Endoscopy 2018 Iacucci M, McQuaid K, Gui XS, Iwao Y, Lethebe BC, Lowerison M, Matsumoto T, Shivaji UN, Smith SCL, Subramanian V, Uraoka T, Sanduleanu S, Ghosh S, Kiesslich R
• Presentation of the Julius M. Friedenwald Medal to Loren A. Laine.
  Gastroenterology 2018 Fennerty MB, McQuaid K, Gorelick F
• ASGE EndoVators Summit: Defining the Role and Value of Endoscopic Therapies in Obesity Management.
  Obesity surgery 2018 Ryou M, McQuaid KR, Thompson CC, Edmundowicz S, Mergener K, ASGE EndoVators Task Force
• Risk factors for postpolypectomy bleeding in patients receiving anticoagulation or antiplatelet medications.
  Gastrointestinal endoscopy 2017 Lin D, Soetikno RM, McQuaid K, Pham C, Doan G, Mou S, Shergill AK, Somsouk M, Rouse RV, Kaltenbach T
• ASGE EndoVators Summit: Defining the Role and Value of Endoscopic Therapies in Obesity Management.
  Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract 2017 Ryou M, McQuaid KR, Thompson CC, Edmundowic S, Mergener K, ASGE EndoVators Task Force
• ASGE EndoVators Summit: defining the role and value of endoscopic therapies in obesity management.
  Surgical endoscopy 2017 Ryou M, McQuaid KR, Thompson CC, Edmundowicz S, Mergener K, ASGE EndoVators Task Force
• ASGE EndoVators Summit: Defining the role and value of endoscopic therapies in obesity management.
  Gastrointestinal endoscopy 2017 ASGE EndoVators Task Force, Ryou M, McQuaid KR, Thompson CC, Edmundowicz S, Mergener K, Abu Dayyeh B, Apovian C, Burke C, Chand B, Chandraker A, Deas T, Dietz W, Dunkin B, Ernest O, Faigel D, Garber S…
• Response.
  Gastrointestinal endoscopy 2017 Wani S, Sedlack R, Dewitt J, McQuaid K, Woods KL
• ASGE EndoVators Summit: Defining the role and value of endoscopic therapies in obesity management.
  Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery 2017 Ryou M, McQuaid KR, Thompson CC, Edmundowicz S, Mergener K, Dayyeh BA, Apovian C, Burke C, Chand B, Chandraker A, Deas T, Dietz W, Dunkin B, Ernest O, Faigel D, Garber S, Hamdy O, Kaplan L, Kumar N, …
• Transparency ethics in practice: Revisiting financial conflicts of interest disclosure forms in clinical practice guidelines.
  PloS one 2017 Lu Y, Jones DJ, Sharara N, Kaltenbach T, Laine L, McQuaid K, Soetikno R, Subramanian V, Barkun A
• Optimizing the quality of endoscopy in inflammatory bowel disease: focus on surveillance and management of colorectal dysplasia using interactive image- and video-based teaching.
  Gastrointestinal endoscopy 2017 Kaltenbach TR, Soetikno RM, DeVivo R, Laine LA, Barkun A, McQuaid KR, Optimizing Quality of Endoscopy in IBD Group
• Response.
  Gastrointestinal endoscopy 2016 Kaltenbach T, McQuaid KR, Soetikno R
• Improving detection of colorectal dysplasia in inflammatory bowel disease surveillance.
  Gastrointestinal endoscopy 2016 Kaltenbach T, McQuaid KR, Soetikno R, Laine L
• Paradigm Shift in the Surveillance and Management of Dysplasia in Inflammatory Bowel Disease (West).
  Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society 2016 Soetikno R, Kaltenbach T, McQuaid KR, Subramanian V, Kumar R, Barkun AN, Laine L
• Response to Editorial of Peter D.R. Higgins (July 2015).
  The American journal of gastroenterology 2015 Laine L, Kaltenbach T, Barkun A, McQuaid KR, Subramanian V, Soetikno R
• A roadmap to the implementation of chromoendoscopy in inflammatory bowel disease colonoscopy surveillance practice.
  Gastrointestinal endoscopy 2015 Sanduleanu S, Kaltenbach T, Barkun A, McCabe RP, Velayos F, Picco MF, Laine L, Soetikno R, McQuaid KR
• Protective association of colonoscopy against proximal and distal colon cancer and patterns in interval cancer.
  Gastrointestinal endoscopy 2015 Shergill AK, Conners EE, McQuaid KR, Epstein S, Ryan JC, Shah JN, Inadomi J, Somsouk M
• Site-specific differences in T cell frequencies and phenotypes in the blood and gut of HIV-uninfected and ART-treated HIV+ adults.
  PloS one 2015 Yukl SA, Shergill AK, Girling V, Li Q, Killian M, Epling L, Li P, Kaiser P, Haase A, Havlir DV, McQuaid K, Sinclair E, Wong JK
• SCENIC international consensus statement on surveillance and management of dysplasia in inflammatory bowel disease.
  Gastroenterology 2015 Laine L, Kaltenbach T, Barkun A, McQuaid KR, Subramanian V, Soetikno R, SCENIC Guideline Development Panel
• SCENIC international consensus statement on surveillance and management of dysplasia in inflammatory bowel disease.
  Gastrointestinal endoscopy 2015 Laine L, Kaltenbach T, Barkun A, McQuaid KR, Subramanian V, Soetikno R, SCENIC Guideline Development Panel
• Real-time optical diagnosis for diminutive colorectal polyps using narrow-band imaging: the VALID randomised clinical trial.
  Gut 2014 Kaltenbach T, Rastogi A, Rouse RV, McQuaid KR, Sato T, Bansal A, Kosek JC, Soetikno R
• Endoscopists can sustain high performance for the optical diagnosis of colorectal polyps following standardized and continued training.
  Endoscopy 2014 McGill SK, Soetikno R, Rastogi A, Rouse RV, Sato T, Bansal A, McQuaid K, Kaltenbach T
• Quality bowel preparation for surveillance colonoscopy in patients with inflammatory bowel disease is a must.
  Gastrointestinal endoscopy clinics of North America 2014 Nett A, Velayos F, McQuaid K
• The distribution of HIV DNA and RNA in cell subsets differs in gut and blood of HIV-positive patients on ART: implications for viral persistence.
  The Journal of infectious diseases 2013 Yukl SA, Shergill AK, Ho T, Killian M, Girling V, Epling L, Li P, Wong LK, Crouch P, Deeks SG, Havlir DV, McQuaid K, Sinclair E, Wong JK
• The detection of nonpolypoid (flat and depressed) colorectal neoplasms in patients with inflammatory bowel disease.
  Gastroenterology 2013 Soetikno R, Subramanian V, Kaltenbach T, Rouse RV, Sanduleanu S, Suzuki N, Tanaka S, McQuaid K
• Our new president--Loren A. Laine, MD.
  Gastroenterology 2012 Fennerty MB, McQuaid K
• Randomized trial of standard versus magnetic endoscope imaging colonoscopes for unsedated colonoscopy.
  Gastrointestinal endoscopy 2012 Shergill AK, McQuaid KR, Deleon A, McAnanama M, Shah JN
• Potential use of telemedicine to provide outpatient care for inflammatory bowel disease.
  The American journal of gastroenterology 2011 Krier M, Kaltenbach T, McQuaid K, Soetikno R
• Colonoscopy with clipping is useful in the diagnosis and treatment of diverticular bleeding.
  Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 2011 Kaltenbach T, Watson R, Shah J, Friedland S, Sato T, Shergill A, McQuaid K, Soetikno R
• Reduced cathartic bowel preparation for CT colonography: prospective comparison of 2-L polyethylene glycol and magnesium citrate.
  Radiology 2011 Keedy AW, Yee J, Aslam R, Weinstein S, Landeras LA, Shah JN, McQuaid KR, Yeh BM
• Systematic review: the role of bile acids in the pathogenesis of gastro-oesophageal reflux disease and related neoplasia.
  Alimentary pharmacology & therapeutics 2011 McQuaid KR, Laine L, Fennerty MB, Souza R, Spechler SJ
• Effect of raltegravir-containing intensification on HIV burden and T-cell activation in multiple gut sites of HIV-positive adults on suppressive antiretroviral therapy.
  AIDS (London, England) 2010 Yukl SA, Shergill AK, McQuaid K, Gianella S, Lampiris H, Hare CB, Pandori M, Sinclair E, Günthard HF, Fischer M, Wong JK, Havlir DV
• Differences in HIV burden and immune activation within the gut of HIV-positive patients receiving suppressive antiretroviral therapy.
  The Journal of infectious diseases 2010 Yukl SA, Gianella S, Sinclair E, Epling L, Li Q, Duan L, Choi AL, Girling V, Ho T, Li P, Fujimoto K, Lampiris H, Hare CB, Pandori M, Haase AT, Günthard HF, Fischer M, Shergill AK, McQuaid K, Havlir DV…
• Surveillance guidelines should be updated to recognize the importance of serrated polyps.
  Gastroenterology 2010 Terdiman JP, McQuaid KR
• An explicit quality indicator set for measurement of quality of care in patients with cirrhosis.
  Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 2010 Kanwal F, Kramer J, Asch SM, El-Serag H, Spiegel BM, Edmundowicz S, Sanyal AJ, Dominitz JA, McQuaid KR, Martin P, Keeffe EB, Friedman LS, Ho SB, Durazo F, Bacon BR
• Chemoprevention of colonic polyps with balsalazide: an exploratory, double-blind, placebo-controlled study.
  Digestive diseases and sciences 2009 Terdiman JP, Johnson LK, Kim YS, Sleisenger MH, Gum JR, Hayes A, Weinberg VK, McQuaid KR
• Ergonomics and GI endoscopy.
  Gastrointestinal endoscopy 2009 Shergill AK, McQuaid KR, Rempel D
• Pinch force and forearm-muscle load during routine colonoscopy: a pilot study.
  Gastrointestinal endoscopy 2009 Shergill AK, Asundi KR, Barr A, Shah JN, Ryan JC, McQuaid KR, Rempel D
• AGA Institute Future Trends Committee report: the future of gastroenterology training programs in the United States.
  Gastroenterology 2008 Wang TC, Cominelli F, Fleischer DE, Gordon JM, Glickman RM, Limsui D, McQuaid KR, Montrose M, Pasricha PJ, Powell DW, Rowe WA, Sandborn WJ, Todisco A
• Endoscopic therapy for bleeding ulcers: an evidence-based approach based on meta-analyses of randomized controlled trials.
  Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 2008 Laine L, McQuaid KR
• A systematic review and meta-analysis of randomized, controlled trials of moderate sedation for routine endoscopic procedures.
  Gastrointestinal endoscopy 2008 McQuaid KR, Laine L
• Colonoscopic treatment of acute diverticular hemorrhage using endoclips.
  Digestive diseases and sciences 2007 Yen EF, Ladabaum U, Muthusamy VR, Cello JP, McQuaid KR, Shah JN
• The best of times and the worst of times: sustaining the future of academic gastroenterology in the United States--Report of a Consensus Conference Conducted by the AGA Institute Future Trends Committee.
  Gastroenterology 2007 Wang TC, Fleischer DE, Kaufman PN, Malagelada JR, McDonald WJ, McQuaid KR, Montrose M, Pasricha PJ, Powell DW, Rose S, Rowe WA, Todisco A, AGA Institute Future Trends Committee
• Endoscopic treatment of Boerhaave syndrome using a removable self-expandable plastic stent.
  Journal of clinical gastroenterology 2007 Ghassemi KF, Rodriguez HJ, Vesga L, Stewart L, McQuaid KR, Shah JN
• Five-year colon surveillance after screening colonoscopy.
  Gastroenterology 2007 Lieberman DA, Weiss DG, Harford WV, Ahnen DJ, Provenzale D, Sontag SJ, Schnell TG, Chejfec G, Campbell DR, Kidao J, Bond JH, Nelson DB, Triadafilopoulos G, Ramirez FC, Collins JF, Johnston TK, McQuaid…
• Does gender affect career satisfaction and advancement in gastroenterology? Results of an AGA institute-sponsored survey.
  Gastroenterology 2007 Gerson LB, Twomey K, Hecht G, Lee L, McQuaid K, Pizarro TT, Street S, Yoshida C, Early D
• Diagnostic endoscopy: 2020 vision.
  Gastrointestinal endoscopy 2006 Cotton PB, Barkun A, Ginsberg G, Hawes RH, Atkin W, Bjorkman DJ, Dykes C, Elta G, Farrell J, Fleischer D, Ganz R, Glenn T, Janowski D, Johnson D, Kochman M, Kowalski T, Megibow AJ, McQuaid K, Sasa H, …
• New-onset diabetes and pancreatic cancer.
  Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 2006 Gupta S, Vittinghoff E, Bertenthal D, Corley D, Shen H, Walter LC, McQuaid K
• Prospective comparison of patient experience with colon imaging tests.
  The American journal of medicine 2006 Bosworth HB, Rockey DC, Paulson EK, Niedzwiecki D, Davis W, Sanders LL, Yee J, Henderson J, Hatten P, Burdick S, Sanyal A, Rubin DT, Sterling M, Akerkar G, Bhutani MS, Binmoeller K, Garvie J, Bini EJ,…
• Systematic review and meta-analysis of adverse events of low-dose aspirin and clopidogrel in randomized controlled trials.
  The American journal of medicine 2006 McQuaid KR, Laine L
• Age and rising rates of cyclooxygenase-2 inhibitor use. Results from a national survey.
  Journal of general internal medicine 2006 Steinman MA, McQuaid KR, Covinsky KE
• Management of nonsteroidal, anti-inflammatory, drug-associated dyspepsia.
  Gastroenterology 2005 Gupta S, McQuaid K
• Bleeding complications related to aspirin dose.
  The American journal of cardiology 2005 Laine L, McQuaid K
• Early heartburn relief with proton pump inhibitors: a systematic review and meta-analysis of clinical trials.
  Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 2005 McQuaid KR, Laine L
• Analysis of air contrast barium enema, computed tomographic colonography, and colonoscopy: prospective comparison.
  Lancet (London, England) 2005 Rockey DC, Paulson E, Niedzwiecki D, Davis W, Bosworth HB, Sanders L, Yee J, Henderson J, Hatten P, Burdick S, Sanyal A, Rubin DT, Sterling M, Akerkar G, Bhutani MS, Binmoeller K, Garvie J, Bini EJ, …
• Prospective comparison of air-contrast barium enema and colonoscopy in patients with fecal occult blood: a pilot study.
  Gastrointestinal endoscopy 2004 Rockey DC, Koch J, Yee J, McQuaid KR, Halvorsen RA
• A critical review of the diagnosis and management of Barrett's esophagus: the AGA Chicago Workshop.
  Gastroenterology 2004 Sharma P, McQuaid K, Dent J, Fennerty MB, Sampliner R, Spechler S, Cameron A, Corley D, Falk G, Goldblum J, Hunter J, Jankowski J, Lundell L, Reid B, Shaheen NJ, Sonnenberg A, Wang K, Weinstein W, AGA…
• Unsedated ultrathin EGD is well accepted when compared with conventional sedated EGD: a multicenter randomized trial.
  Gastroenterology 2003 Garcia RT, Cello JP, Nguyen MH, Rogers SJ, Rodas A, Trinh HN, Stollman NH, Schlueck G, McQuaid KR
• Eradication of Helicobacter pylori in nonulcer dyspepsia: how much analysis do we need?
  Journal of clinical gastroenterology 2003 McQuaid KR
• Nonendoscopic imaging: the marauders are at the gates.
  Gastrointestinal endoscopy 2002 McQuaid KR
• What is PET? (an overview of principles).
  Gastrointestinal endoscopy 2002 McQuaid KR
• Procedural success and complications of large-scale screening colonoscopy.
  Gastrointestinal endoscopy 2002 Nelson DB, McQuaid KR, Bond JH, Lieberman DA, Weiss DG, Johnston TK
• Patient experience and preferences toward colon cancer screening: a comparison of virtual colonoscopy and conventional colonoscopy.
  Gastrointestinal endoscopy 2001 Akerkar GA, Yee J, Hung R, McQuaid K
• Colorectal neoplasia: performance characteristics of CT colonography for detection in 300 patients.
  Radiology 2001 Yee J, Akerkar GA, Hung RK, Steinauer-Gebauer AM, Wall SD, McQuaid KR
• Treatment of uninvestigated dyspepsia with cisapride for patients with negative Helicobacter pylori serologies.
  The American journal of gastroenterology 2000 Kearney DJ, Avins AL, McQuaid KR
• Upper gastrointestinal symptoms in North America: prevalence and relationship to healthcare utilization and quality of life.
  Digestive diseases and sciences 2000 Frank L, Kleinman L, Ganoczy D, McQuaid K, Sloan S, Eggleston A, Tougas G, Farup C
• Coordinate up-regulation of low-density lipoprotein receptor and cyclo-oxygenase-2 gene expression in human colorectal cells and in colorectal adenocarcinoma biopsies.
  International journal of cancer 1999 Lum DF, McQuaid KR, Gilbertson VL, Hughes-Fulford M
• Relative frequency of upper gastrointestinal and colonic lesions in patients with positive fecal occult-blood tests.
  The New England journal of medicine 1998 Rockey DC, Koch J, Cello JP, Sanders LL, McQuaid K
• Omeprazole improves peak expiratory flow rate and quality of life in asthmatics with gastroesophageal reflux.
  The American journal of gastroenterology 1998 Levin TR, Sperling RM, McQuaid KR
• The outpatient evaluation of hematochezia.
  The American journal of gastroenterology 1998 Segal WN, Greenberg PD, Rockey DC, Cello JP, McQuaid KR
• Endoscopic hemostasis of nonvariceal, non-peptic ulcer hemorrhage.
  Gastrointestinal endoscopy clinics of North America 1997 Lum DF, McQuaid K, Lee JG
• Endoscopic sclerotherapy compared with percutaneous transjugular intrahepatic portosystemic shunt after initial sclerotherapy in patients with acute variceal hemorrhage. A randomized, controlled trial.
  Annals of internal medicine 1997 Cello JP, Ring EJ, Olcott EW, Koch J, Gordon R, Sandhu J, Morgan DR, Ostroff JW, Rockey DC, Bacchetti P, LaBerge J, Lake JR, Somberg K, Doherty C, Davila M, McQuaid K, Wall SD
• Laparoscopy to correctly diagnose and stage metastatic breast cancer mimicking Crohn's disease.
  Surgical endoscopy 1995 Easter DW, Jamshidipour R, McQuaid K
• Hydrocolonic ultrasonography in the detection of colonic polyps and tumors.
  The New England journal of medicine 1994 Chui DW, Gooding GA, McQuaid KR, Griswold V, Grendell JH
• Gastric acid suppression is greater during intravenous ranitidine infusion versus bolus injections of famotidine.
  Alimentary pharmacology & therapeutics 1993 Hogan DL, McQuaid KR, Koss MA, Crombie DL, Hunter S, Metz C, Euler AR, Isenberg JI
• Endoscopy-negative dyspepsia. Hold those forceps!
  Journal of clinical gastroenterology 1993 McQuaid KR
• Two fatal complications related to gastrostomy "button" placement.
  Gastrointestinal endoscopy 1992 McQuaid KR, Little TE
• Medical therapy of peptic ulcer disease.
  The Surgical clinics of North America 1992 McQuaid KR, Isenberg JI
• Much ado about gastrin.
  Journal of clinical gastroenterology 1991 McQuaid KR
• The relationship between the light scattering properties of zymogen granules and the release of their contained proteins.
  Biochimica et biophysica acta 1991 Rothman S, Underwood J, McQuaid K, Grendell J
• The interior of a whole and unmodified biological object--the zymogen granule--viewed with a high-resolution X-ray microscope.
  Biochimica et biophysica acta 1989 Rothman SS, Iskander N, Attwood D, Vladimirsky Y, McQuaid K, Grendell J, Kirz J, Ade H, McNulty I, Kern D
• X-ray holograms at improved resolution: a study of zymogen granules.
  Science (New York, N.Y.) 1987 Howells M, Jacobsen C, Kirz J, Feder R, McQuaid K, Rothman S