VassilikiLTsikitisMD, MCR, MBA, FACS, FASCRS

PubMed

• Combinatorial Inhibition of Complement Factor D and BCL2 for Early-Onset Colorectal Cancer.
  Shahrose Rahman, Arthur G Affleck 4th, Rebecca A Ruhl, Ranish K Patel, Lina Gao
  Diseases of the Colon and Rectum. 2024-07-01
• Medical Management of Inflammatory Bowel Disease.
  Shahrose Rahman, Ranish K Patel, Elisa Boden, Vassiliki Liana Tsikitis
  The Surgical Clinics of North America. 2024-06-01
• 1 citations
  Colorectal Neoplasia in the Setting of Inflammatory Bowel Disease.
  Maura Walsh, Shahrose Rahman, Rebecca Gologorsky, Vassiliki Liana Tsikitis
  The Surgical Clinics of North America. 2024-06-01

Journal Articles

• Colorectal Cancer Liver Metastasis: Evolving Paradigms and Future Directions  
  Zarour LR, Anand S, Billingsley KB, Bisson WH, Cercek A, Clarke MF, Coussens LM, Gast CE, Geltzeiler CB, Hansen L, Kelley KA, Lopez CD, Rana SR, Ruhl R, Tsikitis VL, V..., CMGH Cell Molec Gastroenterol Hepatol, 1/1/2017
• Seeding of abdomen with primary hemangioma by a ventriculoperitoneal shunt: case report  
  Bridges K, Sauerwein R, Grafe M, Tsikitis VL, Halfpenny A, World Neurosurg, 1/1/2017
• Perianal Crohn’s disease: challenges and solutions  
  Kelley KA, Kaur T, Tsikitis VL, Clin Exp Gastroenterol, 1/1/2017
• Prognosis of Small Bowel Adenocarcinoma in Crohn’s Disease Patients Compares Favorably to De Novo Small Bowel Adenocarcinoma  
  Wieghard N, Mongoue-Tchokote S, Young JI, Sheppard BC, Tsikitis VL, Colorectal Dis, 1/1/2017
• Treatment and Survival of Small Bowel Adenocarcinoma in the United States: A Comparison with Colon Cancer  
  Young JI, Mongoue-Tchokote S, Wieghard N, Mori M, Vaccaro GM, Sheppard BC, Tsikitis VL, Dis Colon Rectum, 1/1/2016
• Endoluminal Therapy in Colon Cancer  
  Kelley KA, Tsikitis VL, Clin Colon Rectal Surg, 1/1/2016
• MicroRNA Signatures of Colonic Polyps on Screening and Histology  
  Tsikitis VL, Potter A, Mori M, Buckmeier JA, Preece CR, Harrington CA, Bartley AN, Bhattacharyya AK, Hamilton SR, Lance MP, Thompson PA, Cancer Prev Res, 1/1/2016
• Variation in the Use of Chemoradiotherapy for Stage II and III Anal Cancer: Analysis of the National Cancer Data Base  
  Geltzeiler CB, Tsikitis VL, Kim JS, Thomas CR Jr, Herzig DO, Lu KC, Ann Surg Onc, 1/1/2016
• HIV Positivity and Anal Cancer Outcomes: A Single-Center Experience  
  Wieghard N, Hart KD, Kelley K, Lu KC, Herzig DO, Mitin T, Thomas Jr CR, Tsikitis VL, Am J Surg, 1/1/2016
• Nomogram for Predicting Overall and Survival and Salvage APR for Patients with Anal Cancer  
  Tsikitis VL, Lu KC, Kim JS, Billingsley KG, Thomas Jr CR, Herzig DO, Dis Colon Rectum, 1/1/2016
• Strictureplasty for Treatment of Crohn’s Disease: an ACS-NSQIP Database Analysis  
  Geltzeiler CB, Young JI, Diggs BS, Keyashian K, Deveney K, Lu KC, Tsikitis VL, Herzig DO, J Gastrointest Surg, 1/1/2015
• Trends in the Surgical Management of Crohn’s Disease  
  Geltzeiler CB, Hart KD, Lu KC, Deveney KE, Herzig DO, Tsikitis VL, J Gastrointest Surg, 1/1/2015
• Psychiatric Illness is a Disparity in the Surgical Treatment of Rectal Cancer  
  Wieghard N, Herzig DO, Hart KD, Lu KC, Deveney KD, Tsikitis VL, Ann Surg Onc, 1/1/2015
• Molecular markers for colon diagnosis, prognosis, and targeted therapy  
  Herzig DO, Tsikitis VL, J Surg Oncol, 1/1/2015
• Initial Surgical Management of Ulcerative Colitis in the Biologic Era  
  Geltzeiler CB, Herzig D, Diggs B, Keyashian K, Lu K, Tsikitis VL, Dis Colon Rectum, 1/1/2014
• Recent Developments in the Surgical Management of Perianal Fistula for Crohn’s Disease  
  Geltzeiler CB, Wieghard N, Tsikitis VL, Ann Gastroenterol, 1/1/2014
• Chemoradiotherapy with a Radiation Boost for Anal Cancer Decreases the Risk for Salvage Abdominoperineal Resection: Analysis from the National Cancer Data Base  
  Geltzeiler CB, Nabavizadeh N, Kim J, Lu KC, Billingsley KG, Thomas CR, Herzig DO, Tsikitis VL, Ann Surg Oncol, 1/1/2014
• Differential expression of microRNA-320a, -145, and -192 among different histologies of colonic adenomas  
  Tsikitis VL, White I, Motomi M, Potter A, Hamilton S, Buckmeier J, Lance P, Thompson P, Am J Surg, 1/1/2014
• Virtual reality endoscopic simulator discriminates beginner from advanced surgical resident endoscopists after formal endoscopic training  
  White I, Buchberg B, Tsikitis L, Herzig D, Vetto J, and Lu KC, J Cancer Educ, 1/1/2014
• Gallbladder Cancer in Native Americans versus Non-Hispanic Whites Earlier and more Deadly?  
  Konstantinidis I, Tsikitis VL, J Surgery, 1/1/2014
• Review: Serrated Polyposis Syndrome  
  Young JI, Hooper JE, Lu KC, Herzig DO, Tsikitis VL, Colorectal Cancer, 1/1/2014
• Ratio images and UVC excitation in autofluorescence imaging of neoplasms of the human colon  
  Renkoski T, Banerjee B, Graves L, Rial N, Tsikitis VL, Nfonsam V, Tiwari V, Reid S, Gavini H, Utzinger U, J Biomed Opt, 1/1/2013
• Anal Canal Squamous Cancer: Overview, Surveillance after Treatment & Management of Local Recurrence  
  Tsikitis VL, Lu KC, Herzig DO, Thomas C, Colorectal Cancer, 1/1/2012
• Intracranial Hemangiopericytoma Focally Recurrent to the Pelvis  
  Eil R, Lu KC, Wettach GR, Tsikitis VL, J Cancer Therapy, 1/1/2012
• Tryptophan Autofluorescence Imaging of Neoplasms of the Human Colon  
  Banerjee B, Renkoski T, Graves L, Tsikitis VL. N.Rial et al, J Biomed Optics, 1/1/2012
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Books/Book Chapters

• The ASCRS Textbook of Colon and Rectal Surgery 
  Chapter: Anal Fissure and Anal Stenosis 
  Tsikitis, V.L., Marecik, S.Editors: Steele, S.R., Hull, T.L., Hyman, N., Maykel, J.A., Read, T.E., Whitlow, C.B..SpringerEdition 4th,2022
• The American Cancer Society’s Oncology in Practice: Clinical Management 
  Chapter: Anal Cancer 
  Eng C, Shridhar R, Chan, E, Silva N, Tsikitis VL, Hedlund S, Chuong M, Thomas CR.Wiley2018
• Shackelford's Surgery of the Alimentary Tract 
  Chapter: Operations for Colorectal Cancer: Low Anterior Resection 
  Tsikitis VL, Cohen AMEditors: Yeo C.J, McFadden D.W., Pemberton J.H., Peters J.H..ElsevierEdition 7th,2013
• Operative Dictations in General and Vascular Surgery 
  Chapter: Laparoscopic Abdominoperineal Resection 
  Khreiss M., Tsikitis V.L.Editors: Hoballah, J., Scott-Conner, MD, C..SpringerEdition 2nd,2012
• Operative Dictations in General and Vascular Surgery 
  Chapter: Laparoscopic Low Anterior Resection 
  Khreiss M., Tsikitis V.L.Editors: Hoballah, J., Scott-Conner, MD, C..SpringerEdition 2nd,2012
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Abstracts/Posters

• Age Related Differences In Gene Expression in Colrectal Cancer
  Byrne RM, Ruhl R, Lanciault C, Herzig DO, Lu KC, Anand S, Nellore A, Tsikitis VL, Memorial Sloan Kettering Advances in Colorectal Oncology, New York, NY, 1/1/2017
• Does Travel Distance Influence Readmissions in Colon and Rectal Cancer Patients? What the Primary Operative Team Needs to Know
  Kelley KA, Young JI, Bassale S, Martindale RG, Lu KC, Tsikitis VL, Northwest Society of Colon and Rectal Cancer Annual Meeting, Whistler, BC, Canada, 1/1/2017
• Understanding and Resetting Radiosensitivity in Rectal Cancer
  Kelley KA, Rana S, Ruhl R, Lanciault C, Hunter JG, Thomas Jr CR, Anand S, Tsikitis VL, American Surgical Association 137th Annual Meeting, Philadelphia, PA, 1/1/2017
• MicroRNA 451 and 203 Regulation of Radiation Sensitivity in Rectal Carcinomas
  Kelley KA, Ruhl R, Rana S, Thomas Jr CR, Anand S, Tsikitis VL, Integrated Quick Shot Presentation Session- Academic Surgical Congress 12th Annual Meeting, Las Vegas, NV, 1/1/2017
• Differential miR Expression Profile Predictive of Colorectal Cancer Metastasis in Node Positive Early Onset Colorectal Cancer
  Butler K, Wieghard NE, Ellrott K, Tsikitis VL, American Society of Colon and Rectal Surgeons Annual Meeting, Los Angeles, CA, 1/1/2016
• Small Bowel Adenocarcinoma of Crohn’s Disease Patients in the United States
  Wieghard N, Mongoue-Tchokote S, Young JI, Mori M, Sheppard B, Tsikitis VL, American Society of Colon and Rectal Surgeons Annual Meeting, Boston, MA, 1/1/2015
• Psychiatric Disorders Impact the Surgical Management of Rectal Cancer
  Wieghard N, Herzig DO, Hart KD, Lu KC, Deveney KD, Tsikitis VL, Digestive Disease Week Annual Meeting, Washington, DC, 1/1/2015
• Treatment and Prognosis of Small Bowel Adenocarcinoma in the United States
  Young JI, Mongoue-Tchokote S, Wieghard N, Mori M, Vaccaro GV, Sheppard BC, Tsikitis VL, American Society of Colon and Rectal Surgeons Annual Meeting; Oregon / Washington Chapter of American College of Surgery 10th Combined Annual Meeting, Boston, MA, 2015; Cle Elum, WA, 2015, 1/1/2015
• Boost Radiation Treatment for Anal Cancer Decreases the Risk for Lifetime Colostomy: Analysis from the National Cancer Database (NCDB)
  Budde CN, Nabazadeh N, Kim J, Lu KC, Billingsley KG, Thomas CR, Herzig DO, Tsikitis V, Society of Surgical Oncology Annual Meeting, Phoenix, AZ, 1/1/2014
• Tumor Suppressive MicroRNA Expression in Colorectal Cancer Progression to Liver Metastases
  Budde C, Chin K, Crapster-Pregont M, Mori T, Potter A, Harrington C, Hooper JE, Wong M, Tsikitis VL, OHSU Research Week, Portland, OR, 1/1/2014
• Practice Patterns for Anal Cancer
  Wieghard N, Herzig DO, Hart KD, Lu KC, Deveney KD, Tsikitis VL, Annual Meeting of the Association of Colon and Rectal Surgeons, Hollywood, FL, 1/1/2014
• Colectomy Surgical Site Infection (SSI) at a Single Institution: Implications for Multiple Quality Improvement Programs
  Wieghard N, Tsikitis VL, Quint-Gaebel B, Attia F, Herzig DO, North Pacific Surgical Association Annual Meeting, Seattle, WA, 1/1/2014
• Practice Patterns for Anal Canal Cancer Treatment
  Budde C, Tsikitis VL, Kim J, Lu K, Herzig DO, The American Society of Colon and Rectal Surgery Annual Scientific Meeting, Hollywood, FL, 1/1/2014
• Initial Surgical Management of Ulcerative Colitis in the Biologic Era
  Budde C, Herzig D, Diggs B, Keyashian K, Lu K, Tsikitis VL, The American Society of Colon and Rectal Surgery Annual Scientific Meeting; Oregon/Washington American College of Surgeons Chapter Meeting, Hollywood, FL, 2014; Sunriver, OR, 2014, 1/1/2014
• Strictureplasty for Treatment of Crohn’s Disease: a NSQIP Database Analysis
  Budde C, Young JI, Diggs BS, Keyashian K, Lu K, Tsikitis VL, Herzig D, Digestive Disease Week Annual Meeting, Chicago, IL, 1/1/2014
• Trends in Operative Interventions for Crohn’s Disease in the Biologic Era
  Budde C, Lu K, Diggs B, Deveney K, Keyashian K, Herzig D, Tsikitis VL, Pacific Coast Surgical Association Annual Meeting, Dana Point, CA, 1/1/2014
• Boost Radiation Treatment for Anal Cancer Decreases the Risk for Lifetime Colostomy: Analysis from the National Cancer Database (NCDB)
  Budde CN, Nabazadeh N, Kim J, Lu KC , Billingsley KG, Thomas CR, Herzig DO, Tsikitis V, Society of Surgical Oncology Annual Meeting; Oregon/Washington Chapter American College of Surgeons Chapter Meeting, Phoenix, AZ, 2014; Sunriver, OR, 2014, 1/1/2014
• Nomogram for predicting overall and colostomy free survival for patients with anal cancer
  Tsikitis V, Lu KC, Jong K, Billingsley K, Thomas CR, Herzig DO, GI ASCO Annual Meeting, San Francisco, CA, 1/1/2014
• Virtual reality endoscopic simulator discriminates beginner from advanced surgical resident endoscopists after formal endoscopic training
  White I, Buchberg B, Tsikitis L, Herzig D, Vetto J, and Lu KC, Pacific Coast Surgical Association Annual Meeting, Kauai, HI, 1/1/2013
• Use it or lose it: Surgical residents’ endoscopic skills deteriorate over time away from endoscopic procedures as measured by an endoscopic simulator
  White I, Buchberg B, Herzig D, Tsikitis L, and Lu K, American Society of Colon and Rectal Surgeons Annual Meeting, Phoenix, AZ, 1/1/2013
• Increasing the number of lymph nodes examined after colectomy does not improve colon cancer staging or overall survival
  Budde CN, Herzig DO, Lu KC, Diggs BS, Deveney K, and Tsikitis V, Surgical Society of the Alimentary Tract/Digestive Disease Week, Orlando, FL, 1/1/2013
• Differential expression of microRNA-320a, -145, and -192 among different histologies of colonic adenomas
  Tsikitis VL, White I, Motomi M, Potter A, Hamilton S, Buckmeier J, Lance P, Thompson P, Fletcher Award Winner, Oregon Chapter of American College of Surgeons Annual Meeting, Chelan, WA, 1/1/2013
• Increasing the number of lymph nodes examined after colectomy does not improve colon cancer staging or overall survival
  Budde C, Tsikitis V, Lu K, Diggs B, Deveney K, Herzig D, Pacific Coast Surgical Society Annual Meeting, Kuai, HI, 1/1/2013
• Use it or lose it: Surgical residents’ endoscopic skills deteriorate over time away from endoscopic procedures as measured by an endoscopic simulator
  White I, Buchberg B, Herzig D, Tsikitis L, and Lu K, American Society of Colon and Rectal Surgeons Annual Meeting; North Pacific Surgical Association Annual Meeting, Phoenix, AZ, 2013; Victoria, BC, Canada, 2013, 1/1/2013
• Spectral Imaging of Neoplasms of the Colon by Targeting Tryptophan, FAD and Collagen
  Banerjee B, Renkoski T, Gavini H, Graves, LR, Tsikitis VL, Rial NS, Utzinger, U, Digestive Disease Week, San Diego, CA, 1/1/2012
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Lectures

• The Latest Treatment Options for Colorectal Cancer 
  Portland, OR - 1/1/2016
• MicroRNA signatures of colonic adenomas according to histology 
  Washington, DC - 1/1/2016
• SSAT/ISDS Joint Symposium: Chronic Inflammation and Neoplastic Transformation: Pathways, Prevention and Treatment: HPV, AIN, and Anal Cancer 
  San Diego, CA - 1/1/2016
• Work/Life Balance: Getting to Physician Wellness 
  San Diego, CA - 1/1/2016
• Evolving Surgical Approach for Colorectal Cancer 
  Portland, OR - 1/1/2015
• Surgical Management of Rectal Carcinoids: Trends and Outcomes from the SEER Database (1988-2012) 
  Portland, OR - 1/1/2015
• Colorectal Cancer Screening, Early Diagnosis, and Surgical Approach 
  Silverton, OR - 1/1/2015
• Surgical Treatment of Patients with Lynch Syndrome 
  Athens, Greece - 1/1/2015
• Anal Cancer Nomograms 
  Boston, MA - 1/1/2015
• Robotic Assisted Colorectal Surgery in the United States: An Updated Analysis of Nationwide Trends and Outcomes 
  Monterrey, CA - 1/1/2015
• Multidisciplinary Approach to Colorectal Cancer 
  Newberg, OR - 1/1/2015
• Inflammatory Bowel Disease 
  Portland, OR - 1/1/2015
• Surgical Management of Inflammatory Bowel Disease 
  Napa Valley, CA - 1/1/2014
• Surgical Management of Colorectal Cancer, Polyposis Syndromes, and Inflammatory Bowel Disease 
  Portland, OR - 1/1/2014
• Colon Cancer 
  Portland, OR - 1/1/2014
• Anorectal Disease 
  Astoria, OR - 1/1/2013
• Rectal Cancer 
  Portland, OR - 1/1/2013
• Benign Anorectal Disease 
  Portland, OR - 1/1/2013
• Disparities in Colorectal Cancer Treatment 
  Chicago, IL - 1/1/2012
• Colorectal Cancer Screening and Surveillance 
  Portland, OR - 1/1/2012
• Empowering the IBD Patient 
  Portland, OR - 1/1/2012
• Colon Cancer Awareness, Men’s Breakfast 
  Portland, OR - 1/1/2012
• Evolving Surgical Approaches for Colon Cancer 
  Newberg, OR - 1/1/2012
• Principles of Surgical Management of Colon and Rectal Cancer 
  Portland, OR - 1/1/2012
• Colon, Rectum, Anus 
  Portland, OR - 1/1/2012
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Other

• Colon Cancer 
  Dragovich T, Tsikitis VL, Medscape
  https://authoring.medscape.com/content/277496
  1/23/2017
• Gender Equality in Publication Productivity (Audio podcast) 
  American Society of Colon and Rectal Surgeons/Diseases of Colon and Rectum
  http://ascrs.libsyn.com/podcast/dcr-gender-equality-in-publication-productivity
  1/11/2017
• Colon Adenocarcinoma 
  Dragovich T, Tsikitis VL, Medscape
  http://emedicine.medscape.com/article/277496-overview
  1/10/2014
• Anal Surgery, Fissurectomy 
  Wieghard, N, Tsikitis VL, eMedicine from WebMD
  http://emedicine.medscape.com/article/1582334-overview
  1/10/2014
• Anal Surgery, Fistulotomy 
  Wieghard NE, Tsikitis VL, eMedicine from WebMD
  http://emedicine.medscape.com/article/1582312-overview
  1/1/2014
• Anal Surgery for Hemorrhoids 
  Tsikitis VL, Leeds MD, eMedicine from WebMD
  http://emedicine.medscape.com/article/1582358-overview
  1/16/2013
• Loop Colostomy 
  Vijayasekaran A, Tsikitis VL, eMedicine from WebMD
  http://emedicine.medscape.com/article/1892803-overview
  1/16/2013
• Strictureplasty 
  Aman M, Tsikitis, VL, eMedicine from WebMD
  http://emedicine.medscape.com/article/1893397-overview
  1/16/2013
• Deficient Pms2, ERCC1, Ku86, CcOI in Field Defects During Progression to Colon Cancer 
  Nguyen H, Loustaunau C, Facista A, Ramsey L, Hassounah N, Taylor H, Krouse R, Payne CM, Tsikitis VL, Goldschmid S, Banerjee B, Perini RF, Bernstein C, JoVE
  http://www.jove.com/index/details.stp?id=1931
  1/1/2010
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