Manish Dhawan
Allegheny General Hospital
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Publication
Featured researches published by Manish Dhawan.
Journal of Clinical Gastroenterology | 2002
Manish Dhawan; Radheshyam M. Agrawal; Jan Ravi; Sangeeta Gulati; Jan F. Silverman; Girija Nathan; Stephen S. Raab; George J. Brodmerkel
Granulomatous hepatitis has many causes. Drugs are an important etiologic factor. Several oral hypoglycemic agents are available for treatment of type II diabetes. Rosiglitazone, a thiazolidinedione, is a newer agent in this class. It has not been shown to be hepatotoxic in the premarketing trials. However, a few case reports have implicated it as a cause of acute hepatocellular injury. The authors report a case of granulomatous hepatitis associated with use of rosiglitazone. Liver function tests should be done regularly to monitor patients on this medication.
Gastrointestinal Endoscopy | 2009
Trupti Shinde; Jennifer L. Lindner; Jan F. Silverman; Rad Agrawal; Manish Dhawan
1. Batts KP. Ischemic cholangitis. Mayo Clin Proc 1998;73:380-5. 2. Barquist ES, Goldstein N, Zinner MJ. Polyarteritis nodosa presenting as a biliary stricture. Surgery 1991;109:16-9. 3. Kasper HU, Dries V, Drebber U, et al. Florid ischemic cholangitis due to leucocytoclastic vasculitis. J Gastroenterol 2004;39:188-91. 4. Viola S, Meyer M, Fabre M, et al. Ischemic necrosis of bile ducts complicating Schonlein-Henoch purpura. Gastroenterology 1999;117:211-4. 5. Jaeger C, Mayer G, Henrich R, et al. Secondary sclerosing cholangitis after long-term treatment in an intensive care unit: clinical presentation, endoscopic findings, treatment, and follow-up. Endoscopy 2006; 38:730-4.
The American Journal of Gastroenterology | 2017
Mrinal Garg; Pikul Patel; Margaret Blackwood; Satish Munigala; Payal Thakkar; James Field; Dustin Wallace; Satty Agarwal; Elie Aoun; Abhijit Kulkarni; Manish Dhawan; Katie Farah; Shyam Thakkar
OBJECTIVES:Current international guidelines for ocular radiation exposure suggest a threshold of 20 millisieverts (mSv)/year. Although endoscopists wear lead aprons, use of protective eye wear is optional. This study was conducted to analyze the lens radiation exposure during endoscopic retrograde cholangiopancreatography (ERCP) for endoscopists to determine the time of fluoroscopy needed to warrant using lens protection during ERCP.METHODS:ERCP patients were prospectively enrolled. Indications, interventions, fluoroscopy time, dose, and attending ± fellow involvement were recorded. Radiation exposure was collected from body dosimeters and dosimeters placed between the eyes. Cumulative radiation doses were obtained at study completion and averaged over the total fluoroscopy time to determine the mSv/hour exposure.RESULTS:A total of 187 cases were included. Attendings and fellows wore lens dosimeters in 178 and 126 cases, respectively, and body dosimeters in 174 and 128 cases, respectively. Attendings and fellows wore lens dosimeters throughout 15.89 and 11.24 h of fluoroscopy, respectively. The cumulative radiation dose absorbed per lens dosimeters was 5.35 mSv for attendings and 2.55 mSv for fellows. The projected lens absorption by the body dosimeters was 19.03 mSv for attendings and 5.21 mSv for fellows. The hourly fluoroscopy lens exposure was 0.34 mSv/hour for attendings and 0.23 mSv/hour for fellows.CONCLUSIONS:The amount of fluoroscopy hours needed to reach the currently suggested lens threshold limit (20 mSv/year) was 59.41 h for attendings and 88.17 h for fellows. Radioprotective eye wear should be worn by physicians with yearly fluoroscopy times in similarly structured practices that meet or exceed these thresholds.
The American Journal of Gastroenterology | 2001
Manish Dhawan; Rodrigo A. Castillo; Rad Agrawal; George J. Brodmerkel
Granulomatous hepatitis has many causes. Drugs are an important etiologic factor. Several oral hypoglycemic agents are available for treatment of type II diabetes. Rosiglitazone, a thiazolidinedione, is a newer agent in this class. It has not been shown to be hepatotoxic in the premarketing trials. However, a few case reports have implicated it as a cause of acute hepatocellular injury. The authors report a case of granulomatous hepatitis associated with use of rosiglitazone. Liver function tests should be done regularly to monitor patients on this medication.
VideoGIE | 2018
Aslam Syed; Ujjala Kumar; Mrinal Garg; Manish Dhawan; Shyam Thakkar
re 1. A, MRCP view showing dilated common bile and hepatic ducts. B, ERCP view showing mucobilia as a filling defect that was aggressively cleared . No mass lesion was seen on occlusion cholangiogram following clearance (right). C, Fluoroscopic image of adult gastroscope in the common bile D, Endoscopic view showing the common hepatic duct and bifurcations. E, Endoscopic view showing nodularities of the cystic duct (left) with w-band imaging (right). F, Staining of biopsy specimen showing intraductal papillary neoplasm of the bile duct, gastric type. Mucinous elium-forming papillary structures also seen here (left, H&E, orig. mag. 10; right, H&E, orig. mag. 20). G, Post-argon plasma coagulation treatt of nodularities.
American Surgeon | 2008
Jitesh A. Patel; Nilesh A. Patel; Trupti Shinde; Miroslav Uchal; Manish Dhawan; Abhijit Kulkarni; Joseph J. Colella; Benjamin K. Poulose; Gary C. Vitale
Gastroenterology | 2017
Bharat Rao; Shailendra Singh; Abhishek Gulati; Mrinal Garg; Manav Sharma; Abhijit Kulkarni; Suzanne Morrissey; Alexander Kirichenko; Harry K. Williams; Donald Atkinson; Suzanne C. Schiffman; Marcia Mitre; Dulabh Monga; Anthony Lupetin; Manish Dhawan; Shyam Thakkar
Gastroenterology | 2017
Shailendra Singh; Bharat Rao; Abhishek Gulati; Manav Sharma; Abhijit Kulkarni; Suzanne Morrissey; Harry K. Williams; Suzanne C. Schiffman; Dulabh Monga; Anthony Lupetin; Donald Atkinson; Alexander Kirichenko; Manish Dhawan; Shyam Thakkar
Gastroenterology | 2017
Manav Sharma; Shailendra Singh; Bharat Rao; Alexander Kirichenko; Suzanne Morrissey; Marcia Mitre; Mrinal Garg; Ujjala Kumar; Abhijit Kulkarni; Dulabh Monga; Suzanne C. Schiffman; Harry K. Williams; Donald Atkinson; Anthony Lupetin; Manish Dhawan; Shyam Thakkar
Gastroenterology | 2016
Ujjala Kumar; Mrinal Garg; Manav Sharma; Abhishek Gulati; Abhijit Kulkarni; Manish Dhawan; Alexander Kirichenko; Suzanne Morrissey; Dulabh Monga; Donald Atkinson; Suzanne C. Schiffman; Harry K. Williams; Rishi Maheshwary; Marcia Mitre; Shyam Thakkar