Vikas Chitnavis

ORCID: 0009-0000-3358-1364
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About
Contact & Profiles
Research Areas
  • Gastric Cancer Management and Outcomes
  • Esophageal and GI Pathology
  • Gastrointestinal disorders and treatments
  • Colorectal Cancer Screening and Detection
  • Diverticular Disease and Complications
  • Metastasis and carcinoma case studies
  • Multiple and Secondary Primary Cancers
  • Gastrointestinal Tumor Research and Treatment
  • Gallbladder and Bile Duct Disorders
  • Esophageal Cancer Research and Treatment
  • Genetic factors in colorectal cancer
  • Pediatric Hepatobiliary Diseases and Treatments
  • Tracheal and airway disorders
  • Lymphoma Diagnosis and Treatment
  • Colorectal and Anal Carcinomas
  • Liver Disease and Transplantation
  • Aortic Disease and Treatment Approaches
  • Neuroendocrine Tumor Research Advances
  • Helicobacter pylori-related gastroenterology studies
  • Pancreatic and Hepatic Oncology Research
  • Aortic aneurysm repair treatments
  • Biliary and Gastrointestinal Fistulas
  • Streptococcal Infections and Treatments
  • Polyomavirus and related diseases
  • Colorectal Cancer Surgical Treatments

Carilion Clinic
2015-2023

Virginia Tech
2015-2021

Carilion Roanoke Memorial Hospital
2020-2021

Cleveland Clinic
2020

Veterans Health Administration
2020

Rhode Island Hospital
1994

John Brown University
1994

Brown University
1994

University of Rochester
1993

St. Mary's Medical Center
1993

Objective Underwater endoscopic mucosal resection (UEMR) is reported to be superior conventional (CMER) for the complete of large polyps and may offer increased procedural efficiency. Aims To compare recurrence rates adverse events between UEMR CEMR define risk factors related recurrence. Also, assess in piecemeal (EMR) based on number pieces resected. Methods We identified all patients with treated using technique at Carilion Clinic, Roanoke, VA, USA January 1, 2014 December 31, 2017...

10.7759/cureus.11485 article EN Cureus 2020-11-14

Gastric lipomas are slow-growing benign lesions of the stomach that often detected incidentally. Most cases asymptomatic but larger may become symptomatic, thereby requiring treatment. Multiple endoscopic modalities have been used for resection in past. We present case a 67-year-old patient who presented with upper GI bleeding secondary to gastric lipoma, which was successfully resected by submucosal dissection.

10.7759/cureus.8909 article EN Cureus 2020-06-29

Adult duodenoduodenal intussusception is extremely rare due to the retroperitoneal fixation of second, third, and fourth parts duodenum. A majority clinically significant with identifiable etiologies typically neoplastic more causes including retained food indwelling enteral tubes, specifically gastrojejunostomy (GJ) tubes. Herein, we discuss case a 23-year-old male who developed upon PEGJ placement associated gastroduodenal dilation telescope phenomenon. To best our knowledge, there are no...

10.1155/2021/4325443 article EN cc-by Case Reports in Gastrointestinal Medicine 2021-06-11

Introduction: Esophageal variceal bleeding portends a 6-week mortality of 10-30%. First-line treatment is endoscopic band ligation, but this can be ineffective in 10-20% cases. Balloon tamponade has historically been used to temporize unstable patients often associated with complications. Self-expandable metal stents (SEMS) may offer an alternative for varices. A single type SEMS approved indication Europe unavailable the United States. Methods: We performed retrospective review tertiary...

10.14309/01.ajg.0000776292.75867.d7 article EN The American Journal of Gastroenterology 2021-10-01

INTRODUCTION: Objective: The efficacy of Endoscopic mucosal resection (EMR) large colon polyp could be addressed by assessing the recurrence rate, complication rates, and number procedures needed to eradicate residual tissue. Aims: Assess risk factors for after EMR polyps compare between endoscopists who completed advanced endoscopy fellowship skilled did not complete advance fellowship. METHODS: We identified all patients with documented colonic treated using technique at Carilion Clinic,...

10.14309/01.ajg.0000590428.72853.25 article EN The American Journal of Gastroenterology 2019-10-01

The novel over-the-scope Padlock clip was reported to assist in the management of esophageal fistulas, refractory gastrointestinal (GI) bleeding, and GI defects closure. A little is known about non-lifting colon polyps with fibrosis secondary prior intervention. Resection could be challenging given tools used remove such are different between institutions. In this study, we describe our experience removing polyp.

10.7759/cureus.10656 article EN Cureus 2020-09-25

Introduction: The stomach is a common extra-nodal organ affected by mucosa-associated lymphoid tissue (MALT) lymphoma. About 10% of cases are Helicobacter pylori-negative. We present 2 such in whom radiotherapy was pursued. Case Description/Methods: A 73 yo female with PMH sick sinus syndrome s/p pacemaker placement and anxiety presented generalized weakness post-prandial abdominal pain associated near-syncope, nausea melena. She denied NSAID abuse, smoking cigarettes, anticoagulation,...

10.14309/01.ajg.0000785992.79531.d2 article EN The American Journal of Gastroenterology 2021-10-01

Mucosa-associated lymphoid tissue (MALT) lymphoma is a common cause of gastric lymphoma. Although most cases are associated with an H. pylori infection, approximately 10% pylori-negative. Patients MALT usually asymptomatic or present nonspecific symptoms such as abdominal pain, dyspepsia, weight loss, and occult gastrointestinal bleeding. In this report, we describe two patients pylori-negative who both presented acute upper bleeding that led to hemodynamic instability. After resuscitation,...

10.1155/2023/8244696 article EN cc-by Case Reports in Gastrointestinal Medicine 2023-03-23

Introduction: Underwater EMR (UEMR) is an alternative technique to remove large polyps that does not require submucosal lifting. UEMR reported be superior conventional for the complete resection of and may offer increased procedural effectiveness. we aimed evaluate outcomes including frequency adverse events after polypectomy. Methods: We identified all patients with documented colonic treated using at Carilion Clinic, Roanoke between 01/01/2014-12/31/2017, follow-up through 6/2018....

10.14309/00000434-201810001-00155 article EN The American Journal of Gastroenterology 2018-10-01

Merkel cell carcinoma (MCC), a high grade cutaneous neuroendocrine tumor (NET), is often confused with basal (BCC), basaloid squamous (SCC), and other primary site small carcinomas. Usually limited to skin regional lymph nodes, solid organ metastasis uncommon results in mortality. We present case of man abdominal pain liver lesions who was diagnosed unknown (MCCUP). A 74-year-old presented one-week history shortness breath, pleuritic chest pain, pain. Significant medical included prostate...

10.14309/00000434-201810001-02348 article EN The American Journal of Gastroenterology 2018-10-01

INTRODUCTION: Synchronous carcinomas in the same patient were first elucidated early 1930s. Following this initial recognition, awareness of synchronous coupled with advancements medical technology have made diagnosis two primary from separate sites time interval possible. We present a case newly diagnosed esophageal and ascending colon adenocarcinomas presenting lower gastrointestinal bleed. CASE DESCRIPTION/METHODS: A 74-year-old female history abdominal aortic aneurysm repair on...

10.14309/01.ajg.0000595452.43235.26 article EN The American Journal of Gastroenterology 2019-10-01

INTRODUCTION: Removing nonlifting colon polyps with fibrosis secondary to prior intervention could be challenging. The novel over-the-scope Padlock clip was used in esophageal fistulas, refractory gastrointestinal bleeding, and GI defects closure. In this study, we describe our experience remeoving nonlifitng polyp. CASE DESCRIPTION/METHODS: A 69-year-old man is referred clinic assist the management of partially excised large, non-granular, broad-based Tubulovillous adenoma. polyp cecum...

10.14309/01.ajg.0000595504.98386.5c article EN The American Journal of Gastroenterology 2019-10-01

INTRODUCTION: Endoclips could be placed prophylactically at the polypectomy site after removal of large polyps to prevent post-polypectomy bleeding. The effect an increased number endoclips deployed endoscopic mucosal resection (EMR) on polyp recurrence is unknown. AIMS: Evaluate risk in patients with undergoing EMR based endocips deployed. METHODS: We identified all documented colon treated using technique Carilion Clinic, Roanoke between 01/01/2014–12/31/2017, follow-up through 10-2018....

10.14309/01.ajg.0000590664.32506.c4 article EN The American Journal of Gastroenterology 2019-10-01
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