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Office
2940 East Banner Gateway drive
Gilbert, AZ 85234Phone+1 480-543-3636
Education & Training
- Medical University of South CarolinaFellowship, Advanced Endoscopy, 2006 - 2007
- Yale-New Haven Medical CenterFellowship, Gastroenterology, 2002 - 2003
- Albert Einstein Healthcare NetworkFellowship, Gastroenterology, 2000 - 2002
- Rutgers Health/Robert Wood Johnson Medical SchoolResidency, Internal Medicine, 1997 - 2000
- Basildon and Thurrock General HospitalSenior Resident, Emergency, 1997 - 1997
- Madras Medical CollegeSenior Resident, 1996 - 1997
- Madras Medical CollegeClass of 1996
- Madras Medical CollegeMBBS, Distinction, 1990 - 1995
Certifications & Licensure
- AZ State Medical License 2021 - 2025
- NY State Medical License 2014 - 2025
- FL State Medical License 2008 - 2021
- CT State Medical License 2002 - 2009
- PA State Medical License 2001 - 2008
- SC State Medical License 2006 - 2007
Awards, Honors, & Recognition
- Med India Professional Excellence Award the Digestive Endoscopy Week 2011, Chennai, India, 2011
- Graduated Medical School with Distinction (>90 th percentile 99 th percentile (15 th Rank among >40,000) 1996
- Thompson Memorial Prize in Anatomy the Madras Medical College, India, 1992
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Clinical Trials
- Patient Position and Impact on Colonoscopy Time Start of enrollment: 2005 Sep 01
- Vitamin E δ-Tocotrienol Multiple Dose in Healthy Subjects Start of enrollment: 2011 Oct 01
- Evaluation of Image-guided Brushing of Pancreatic Cyst Wall in Diagnosis of Cystic Pancreatic Tumors Start of enrollment: 2010 Sep 01
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Publications & Presentations
PubMed
- 112 citationsSuccessful creation of pancreatic cancer organoids by means of EUS-guided fine-needle biopsy sampling for personalized cancer treatment.Hervé Tiriac, Juan Carlos Bucobo, Demetrios Tzimas, Suman Grewel, Joseph F. LaComb
Gastrointestinal Endoscopy. 2017-05-01 - 33 citationsCell-surface markers for colon adenoma and adenocarcinoma.Kamini Sewda, Domenico Coppola, Steven A. Enkemann, Binglin Yue, Jongphil Kim
Oncotarget. 2016-02-15 - 18 citationsMicrobiome and colorectal carcinogenesis: Linked mechanisms and racial differences.Sofia C Tortora, Vimal M Bodiwala, Andrew Quinn, Laura A Martello, Shivakumar Vignesh
World Journal of Gastrointestinal Oncology. 2022-02-15
Journal Articles
- Induction gemcitabine-based chemotherapy and neoadjuvant sterotatic body radiation therapy achieve high margin-negative resection rates for borderline resectable pan...Chuong MD, Springett GM, Weber J, Klapman J, Vignesh S, Pamela Hodul, Mokenge P. Malafa, Susan Leuthold, Sarah E. Hoffe and Ravi Shridhar, Journal of Radiation Oncology
- Effect of Abdominal Compression on Respiratory Motion of Esophageal Cancers Measured with 4DCT after EUS-guided Fiducial Marker Placement.Fernandez DC, Hoffe SE, Dilling TJ, Vignesh S, Barthel JS, Klapman JB, Leuthold SL, Zhang GG, Feygelman V, Shridhar R, International Journal of Radiation Oncology-Biology-Physics
- The feasibility, safety, and technique of endoscopic ultrasound (EUS)-guided fiducial marker placement for stereotatic body radiation therapy (SBRT) in borderline re...Vignesh S, Hoffe SE, Shridhar R, Klapman J, Barthel JS, Highlights Issue of the Journal of the Pancreas
Books/Book Chapters
Abstracts/Posters
- Cigarette smoking is associated with an increased incidence of vascular complications after Liver transplantation.Pungpapong S, Vignesh S et al, at the AASLD 2001 meeting, Dallas
- Neoadjuvant stereotactic body radiation therapy (SBRT) for borderline resectable pancreas cancer: Moffitt Cancer Center Initial Experience.Chuong MD, Shridhar R, Patel M, Klapman J, Barthel JS, Vignesh S, Hodul PJ, Springett GL, Malafa MP, Hoffe SE, GI ASCO
- Effect of neoadjuvant dose-painted IMRT to 56 Gy for locally advanced esophageal cancer on outcomes.Shridhar R, Chuong MD, Hoffe SE, Biagioli M, Almhanna K, Weber J, Kucera S, Vignesh S, Barthel JS, Meredith K, GI ASCO
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Lectures
- Diagnosis and Screening of Gastrointestinal Cancers: Overview of Gastrointestinal Cancers, Role of Gastroenterologists, Colorectal Cancer Screening.Invited Guest Columnist; Khaasbaat (A Publication for Indian Americans in Florida)
- Diagnosis and Screening of Gastrointestinal Cancers: Cancers of the Esophagus, Stomach, Pancreas and Bile Shivakumar Vignesh, MD July 26, 2012 Page 17of 20 Duct.Invited Guest Columnist; Khaasbaat
Other
- Endoscopy in the Setting of Severe Thrombocytopenia.Shivakumar Vignesh, MD, Digestive Disease Week 2011
- In-situ hybridization to validate microRNA (miRNA) profiles in patients with Barrett’s esophagus, low-grade dysplasia, high-grade dysplasia, and esophageal adenocarc...Shivakumar Vignesh, MD, Department of Pathology, Moffitt Cancer Center
- A Phase I Dose-Escalation Study of the Safety Pharmacokinetics of Vitamin E Delta-Tocotrienol Following Single Dose Administration in Healthy Subjects.Shivakumar Vignesh, MD, BioGene/Davos
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Authored Content
- Successful Creation of Pancreatic Cancer Organoids by Means of EUS-Guided Fine-Needle Biopsy for Personalized Cancer TreatmentJanuary 2018
Press Mentions
- Financial Incentives Don't Increase FIT Completion Rates, Study Finds: 4 DetailsMarch 28th, 2019
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