User profiles for "author:Shivakumar Vignesh"

Shivakumar Vignesh., MD, FASGE, AGAF, FACG

Banner MD Anderson Cancer Center, University of Arizona College of Medicine
Verified email at bannerhealth.com
Cited by 967

[HTML][HTML] Epidemiology, diagnosis, staging and multimodal therapy of esophageal and gastric tumors

D Cummings, J Wong, R Palm, S Hoffe, K Almhanna… - Cancers, 2021 - mdpi.com
Simple Summary Upper gastrointestinal tumors involve the tubular organs from the upper
esophagus, the stomach, and the first part of the small intestine. Esophageal and gastric …

[HTML][HTML] Microbiome and colorectal carcinogenesis: linked mechanisms and racial differences

SC Tortora, VM Bodiwala, A Quinn… - World Journal of …, 2022 - ncbi.nlm.nih.gov
Various studies have shown the interplay between the intestinal microbiome, environmental
factors, and genetic changes in colorectal cancer (CRC) development. In this review, we …

Successful creation of pancreatic cancer organoids by means of EUS-guided fine-needle biopsy sampling for personalized cancer treatment

H Tiriac, JC Bucobo, D Tzimas, S Grewel… - Gastrointestinal …, 2018 - Elsevier
Background and Aims Pancreatic cancer organoids are tumor models of individualized
human pancreatic ductal adenocarcinoma (PDA), created from surgical specimens and …

High-grade dysplasia and adenocarcinoma are frequent in side-branch intraductal papillary mucinous neoplasm measuring less than 3 cm on endoscopic ultrasound

J Wong, J Weber, BA Centeno, S Vignesh… - Journal of …, 2013 - Elsevier
Background Surgical resection for intraductal papillary mucinous neoplasm (IPMN) of the
pancreas has increased over the last decade. While IPMN with main duct communication …

The global impact of COVID-19 on gastrointestinal endoscopy units: An international survey of endoscopists

M Alboraie, A Piscoya, QT Tran, RB Mendelsohn… - Arab Journal of …, 2020 - Elsevier
Background & study aims Corona virus disease-19 (COVID-19) pandemic has markedly
impacted routine medical services including gastrointestinal (GI) endoscopy. We aim to …

Stability of endoscopic ultrasound-guided fiducial marker placement for esophageal cancer target delineation and image-guided radiation therapy

DC Fernandez, SE Hoffe, JS Barthel, S Vignesh… - Practical radiation …, 2013 - Elsevier
Purpose Fiducial markers have been integrated into the management of multiple
malignancies to guide more precise delivery of radiation therapy (RT). Fiducials placed at …

Endoscopic diagnosis and treatment of pancreatic cysts

S Vignesh, WR Brugge - Journal of clinical gastroenterology, 2008 - journals.lww.com
Pancreatic cystic neoplasms have emerged as an important new opportunity for many
disciplines to participate in the diagnosis and management of early pancreatic neoplasia …

Pharmacokinetics and safety of vitamin E δ-tocotrienol after single and multiple doses in healthy subjects with measurement of vitamin E metabolites

A Mahipal, J Klapman, S Vignesh, CS Yang… - Cancer chemotherapy …, 2016 - Springer
Purpose Vitamin E delta-tocotrienol (VEDT) has demonstrated chemopreventive and
antineoplastic activity in preclinical models. The aim of our study was to determine the safety …

[HTML][HTML] Cell-surface markers for colon adenoma and adenocarcinoma

K Sewda, D Coppola, S Enkemann, B Yue, J Kim… - Oncotarget, 2016 - ncbi.nlm.nih.gov
Early detection of colorectal cancer (CRC) is crucial for effective treatment. Among CRC
screening techniques, optical colonoscopy is widely considered the gold standard …

Accuracy of contrast-enhanced harmonic EUS with a second-generation perflutren lipid microsphere contrast agent (with video)

J Romagnuolo, B Hoffman, S Vela, R Hawes… - Gastrointestinal …, 2011 - Elsevier
BACKGROUND: EUS-FNA has limitations in cancer diagnosis/staging. New contrast agents,
transducers, and processors have improved the potential of contrast-enhanced harmonic …