A Chak

Summary

Affiliation: Case Western Reserve University
Country: USA

Publications

  1. pmc Familial aggregation of Barrett's oesophagus, oesophageal adenocarcinoma, and oesophagogastric junctional adenocarcinoma in Caucasian adults
    A Chak
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA
    Gut 51:323-8. 2002
  2. ncbi request reprint Endoscopic ultrasonography
    A Chak
    University Hospitals of Cleveland, Ohio 44118, USA
    Endoscopy 32:146-52. 2000
  3. doi request reprint Endoscopic full-thickness resection of gastric tumors using a novel grasp-and-snare technique: feasibility in ex vivo and in vivo porcine models
    B J Elmunzer
    Department of Surgery, University Hospitals Case Medical Center, Cleveland, OH, USA
    Endoscopy 40:931-5. 2008
  4. ncbi request reprint A reliable method for monitoring intraabdominal pressure during natural orifice translumenal endoscopic surgery
    M F McGee
    Department of Surgery, Case Western Reserve University, Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
    Surg Endosc 21:672-6. 2007
  5. ncbi request reprint High-resolution endoscopic imaging of the GI tract: a comparative study of optical coherence tomography versus high-frequency catheter probe EUS
    A Das
    Department of Medicine, Division of Gastroenterology, School of Biomedical Engineering, Case Western Reserve University, School of Medicine and University Hospitals of Cleveland, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 54:219-24. 2001
  6. ncbi request reprint Wire-guided intraductal US: an adjunct to ERCP in the management of bile duct stones
    A Das
    Division of Gastroenterology, University Hospitals of Cleveland and Wade Park VA Medical Center, Case Western Reserve University, Cleveland, Ohio, USA
    Gastrointest Endosc 54:31-6. 2001
  7. ncbi request reprint Complete endoscopic closure of gastrotomy after natural orifice translumenal endoscopic surgery using the NDO Plicator
    M F McGee
    Department of Surgery, Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
    Surg Endosc 22:214-20. 2008
  8. ncbi request reprint Reassessment of patients with esophageal cancer after neoadjuvant therapy
    A Das
    Division of Gastroenterology, Mayo Clinic Scottsdale, AZ, USA
    Endoscopy 38:S13-7. 2006
  9. ncbi request reprint Methylene blue staining of dysplastic and nondysplastic Barrett's esophagus: an in vivo and ex vivo study
    M I Canto
    Division of Gastroenterology, University Hospitals of Cleveland and Veterans Administration Medical Center Case Western Reserve University, Ohio, USA
    Endoscopy 33:391-400. 2001
  10. doi request reprint Tissue apposition system: new technology to minimize surgery for endoscopically unresectable colonic polyps
    C P Delaney
    Division of Colorectal Surgery, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
    Surg Endosc 24:3113-8. 2010

Research Grants

  1. Familial Aggregation of Barrett's Esophagus
    Amitabh Chak; Fiscal Year: 2003
  2. PATIENT ORIENTED RESEARCH IN BARRETT'S ESOPHAGUS
    Amitabh Chak; Fiscal Year: 2007

Collaborators

Detail Information

Publications77

  1. pmc Familial aggregation of Barrett's oesophagus, oesophageal adenocarcinoma, and oesophagogastric junctional adenocarcinoma in Caucasian adults
    A Chak
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA
    Gut 51:323-8. 2002
    ..Although familial clusters of Barrett's oesophagus and oesophageal adenocarcinoma have been reported, a familial predisposition to these diseases has not been systematically investigated...
  2. ncbi request reprint Endoscopic ultrasonography
    A Chak
    University Hospitals of Cleveland, Ohio 44118, USA
    Endoscopy 32:146-52. 2000
    ..Other conditions, such as chronic pancreatitis, portal hypertension, and inflammatory bowel diseases, are also being evaluated with endosonographic imaging...
  3. doi request reprint Endoscopic full-thickness resection of gastric tumors using a novel grasp-and-snare technique: feasibility in ex vivo and in vivo porcine models
    B J Elmunzer
    Department of Surgery, University Hospitals Case Medical Center, Cleveland, OH, USA
    Endoscopy 40:931-5. 2008
    ..The aim of this study was to evaluate the feasibility of a grasp-and-snare EFTR technique using a novel tissue-lifting device that provides more secure tissue anchoring and manipulation...
  4. ncbi request reprint A reliable method for monitoring intraabdominal pressure during natural orifice translumenal endoscopic surgery
    M F McGee
    Department of Surgery, Case Western Reserve University, Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
    Surg Endosc 21:672-6. 2007
    ..A reliable method for monitoring pneumoperitoneum pressures during NOTES has not been identified. This study evaluated several methods of monitoring intraabdominal pressures with a standard gastroscope during NOTES...
  5. ncbi request reprint High-resolution endoscopic imaging of the GI tract: a comparative study of optical coherence tomography versus high-frequency catheter probe EUS
    A Das
    Department of Medicine, Division of Gastroenterology, School of Biomedical Engineering, Case Western Reserve University, School of Medicine and University Hospitals of Cleveland, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 54:219-24. 2001
    ..OCT images the major structural components of the mucosa and submucosa whereas CPEUS does not. Potentially, OCT and high-frequency CPEUS may be complementary for clinical imaging...
  6. ncbi request reprint Wire-guided intraductal US: an adjunct to ERCP in the management of bile duct stones
    A Das
    Division of Gastroenterology, University Hospitals of Cleveland and Wade Park VA Medical Center, Case Western Reserve University, Cleveland, Ohio, USA
    Gastrointest Endosc 54:31-6. 2001
    ..Performance of wire-guided IDUS required 5% of the total procedure time. CONCLUSIONS: IDUS improves diagnostic accuracy of ERC and is a useful adjunct to ERC when bile duct stones are suspected...
  7. ncbi request reprint Complete endoscopic closure of gastrotomy after natural orifice translumenal endoscopic surgery using the NDO Plicator
    M F McGee
    Department of Surgery, Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
    Surg Endosc 22:214-20. 2008
    ..It was theorized that this device may facilitate transgastric natural orifice translumenal endoscopic surgery (NOTES) because closure of the transgastric defect remains a key component for advancement of this new technology...
  8. ncbi request reprint Reassessment of patients with esophageal cancer after neoadjuvant therapy
    A Das
    Division of Gastroenterology, Mayo Clinic Scottsdale, AZ, USA
    Endoscopy 38:S13-7. 2006
  9. ncbi request reprint Methylene blue staining of dysplastic and nondysplastic Barrett's esophagus: an in vivo and ex vivo study
    M I Canto
    Division of Gastroenterology, University Hospitals of Cleveland and Veterans Administration Medical Center Case Western Reserve University, Ohio, USA
    Endoscopy 33:391-400. 2001
    ..We prospectively evaluated the methylene blue staining properties of dysplastic and nondysplastic Barrett's esophagus and the association of these properties with the risk for dysplasia and cancer...
  10. doi request reprint Tissue apposition system: new technology to minimize surgery for endoscopically unresectable colonic polyps
    C P Delaney
    Division of Colorectal Surgery, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
    Surg Endosc 24:3113-8. 2010
    ..TAS is a novel T-tag system for endoscopic placement of sutures, facilitating closure of larger defects from advanced endoluminal or transluminal endoscopic procedures. Such novel instrumentation may reduce risk and accelerate recovery...
  11. ncbi request reprint Evaluation of a rapid urine amylase test using post-ERCP hyperamylasemia as a model
    M J Hegewald
    Department of Medicine, University Hospitals of Cleveland and Case Western Reserve University School of Medicine, Ohio 44106, USA
    Am J Gastroenterol 96:2640-5. 2001
    ..The urine test strip was positive in all cases of clinical pancreatitis and may be a useful bedside test for the diagnosis of acute pancreatitis...
  12. ncbi request reprint Cervical esophageal perforation during EUS: a national survey
    A Das
    Division of Gastroenterology, University Hospitals of Cleveland and Case Western Reserve University, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 53:599-602. 2001
    ..Advanced patient age, difficult intubation during prior upper endoscopy, operator inexperience, and the presence of large cervical osteophytes may contribute to cervical perforation during upper EUS examination...
  13. ncbi request reprint Endoscopic ultrasonography
    A Das
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106, USA
    Endoscopy 36:17-22. 2004
    ....
  14. ncbi request reprint Effectiveness of endoscopy in patients admitted to the intensive care unit with upper GI hemorrhage
    A Chak
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106-1736, USA
    Gastrointest Endosc 53:6-13. 2001
    ..Inaccurate diagnosis at initial EGD is uncommon but has a significant adverse association with all outcome measures...
  15. pmc Lack of gender and racial differences in surgery and mortality in hospitalized Medicare beneficiaries with bleeding peptic ulcer
    G S Cooper
    Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
    J Gen Intern Med 12:485-90. 1997
    ..The findings raise the possibility that studies that have shown race and gender differences in management of coronary artery disease and cancer may not be generalizable to other common diagnoses...
  16. ncbi request reprint Endoscopic ultrasonography
    P R Pfau
    Division of Gastroenterology, University of Wisconsin Medical School, Madison, Wisconsin, USA
    Endoscopy 34:21-8. 2002
    ..New applications for EUS-FNA are also emerging. Finally, investigators are continuing to explore the remaining frontier of EUS-guided therapy...
  17. pmc Insulin/Insulin-Like Growth Factor-1 Pathway in Barrett's Carcinogenesis
    K B Greer
    Division of Gastroenterology and Liver Disease, University Hospitals of Cleveland, Cleveland, Ohio, USA
    Clin Transl Gastroenterol 4:e31. 2013
    ..The aim of this study was to determine whether the insulin/IGF-1 pathway is involved in the sequential progression from metaplastic Barrett's esophagus (BE) to dysplasia to esophageal adenocarcinoma (EAC)...
  18. ncbi request reprint Diaphragm pacing with natural orifice transluminal endoscopic surgery: potential for difficult-to-wean intensive care unit patients
    R Onders
    Department of Surgery, Case Advanced Surgical Endoscopic Team CASE T, Case Western Reserve University, Cleveland, OH 44106 5047, USA
    Surg Endosc 21:475-9. 2007
    ..This study evaluates the feasibility of this approach in a porcine model...
  19. ncbi request reprint Optical coherence tomography of Barrett's esophagus
    A Chak
    Case Western Reserve University, University Hospitals of Cleveland, Cleveland, Ohio, USA
    Endoscopy 37:587-90. 2005
  20. ncbi request reprint The yield of bleeding scans in acute lower gastrointestinal hemorrhage
    Gregory D Olds
    Division of Gastroenterology, Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH 44106 5066, USA
    J Clin Gastroenterol 39:273-7. 2005
    ..Our objective was to evaluate the accuracy of TRBC scintigraphy in clinical day-to-day practice at our institution and to determine predictors of a positive test...
  21. ncbi request reprint Association of esophageal adenocarcinoma with other subsequent primary cancers
    Ananya Das
    Division of Gastroenterology, Mayo Clinic Scottsdale, AZ 85259, USA
    J Clin Gastroenterol 40:405-11. 2006
    ..The authors used the Surveillance, Epidemiology and End-Results database of the National Cancer Institute to explore the association of esophageal adenocarcinoma with other primary cancers...
  22. ncbi request reprint Endoscopic ultrasonography and prognosis of esophageal cancer
    Ananya Das
    Division of Gastroenterology, Mayo Clinic Scottsdale, Scottsdale, Arizona, USA
    Clin Gastroenterol Hepatol 4:695-700. 2006
    ..Our aim was to study the association of receipt of EUS and overall survival in a cohort of patients with esophageal cancer...
  23. ncbi request reprint Endoscopic treatment of high-grade dysplasia and early cancer in Barrett's oesophagus
    Massimo Conio
    Department of Gastroenterology, Sanremo Hospital, Sanremo, Italy
    Lancet Oncol 6:311-21. 2005
    ..The current ablative techniques used are photodynamic therapy, argon plasma coagulation, laser treatment, and endoscopic mucosal resection...
  24. ncbi request reprint A novel use of endoscopic clips in the treatment planning for radiation therapy (XRT) of esophageal cancer
    Patrick R Pfau
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH 44118, USA
    J Clin Gastroenterol 39:372-5. 2005
    ..To determine if the placement of metal endoclips improves radiotherapy (XRT) planning for esophageal cancer...
  25. ncbi request reprint Increased risk of squamous cell esophageal cancer after adjuvant radiation therapy for primary breast cancer
    Lydia B Zablotska
    Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
    Am J Epidemiol 161:330-7. 2005
    ..This finding appears to be a function of the portals used for postmastectomy radiation therapy, which do not expose the lowest third of the esophagus, where adenocarcinomas commonly arise...
  26. ncbi request reprint Familiality in Barrett's esophagus, adenocarcinoma of the esophagus, and adenocarcinoma of the gastroesophageal junction
    Amitabh Chak
    University Hospitals of Cleveland, Case School of Medicine, 11100 Euclid Avenue, Cleveland, OH 44106, USA
    Cancer Epidemiol Biomarkers Prev 15:1668-73. 2006
    ..The aim of this study was to determine the proportion of patients with these diseases who have familial Barrett's esophagus...
  27. ncbi request reprint Artificial neural network as a predictive instrument in patients with acute nonvariceal upper gastrointestinal hemorrhage
    Ananya Das
    Divisions of Gastroenterology, Mayo Clinic Arizona, Scottsdale, Arizona, USA
    Gastroenterology 134:65-74. 2008
    ..Triage of patients with acute upper gastrointestinal hemorrhage (UGIH) has traditionally required urgent upper endoscopy. The aim of this study is to evaluate the use of artificial neural network for nonendoscopic triage...
  28. ncbi request reprint Carbohydrate consumption and esophageal cancer:an ecological assessment
    Cheryl L Thompson
    Department of Family Medicine, Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio 44106 7136, USA
    Am J Gastroenterol 103:555-61. 2008
    ....
  29. ncbi request reprint Acute pancreatitis resulting from a nonfunctional islet cell tumor detected and localized by EUS
    Ashley Faulx
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 55:119-21. 2002
  30. ncbi request reprint Postprocedure radiologist's interpretation of ERCP x-ray films: a prospective outcomes study
    Steve Kucera
    Department of Internal Medicine, Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 66:79-83. 2007
    ....
  31. ncbi request reprint Consortium approach to identifying genes for Barrett's esophagus and esophageal adenocarcinoma
    Heather M Ochs-Balcom
    Department of Epidemiology and Biostatistics, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
    Transl Res 150:3-17. 2007
    ....
  32. ncbi request reprint Mechanical lithotripsy of pancreatic and biliary stones: complications and available treatment options collected from expert centers
    Miriam Thomas
    St Luke s Medical Center, Pancreatic Biliary Center, Milwaukee, Wisconsin, USA
    Am J Gastroenterol 102:1896-902. 2007
    ..PD and common bile duct (CBD) stones often require mechanical lithotripsy (ML) at ERCP for successful extraction. The frequency and spectrum of complications is not well described in the literature...
  33. ncbi request reprint Interobserver agreement for EUS findings in familial pancreatic-cancer kindreds
    Mark Topazian
    Mayo Clinic, Rochester, Minnesota 55905, and University of Washington, Seattle, Washington, USA
    Gastrointest Endosc 66:62-7. 2007
    ..EUS is a promising modality for pancreatic-cancer screening in high-risk persons, including familial pancreatic-cancer (FPC) kindreds...
  34. ncbi request reprint Gastroesophageal reflux symptoms in patients with adenocarcinoma of the esophagus or cardia
    Amitabh Chak
    Division of Gastroenterology, University Hospitals of Cleveland and Ireland Cancer Center, Cleveland, Ohio 44106, USA
    Cancer 107:2160-6. 2006
    ....
  35. ncbi request reprint EUS assessment of response to chemoradiation in esophageal cancer patients
    Amitabh Chak
    Am J Gastroenterol 100:496-7; author reply 497-9. 2005
  36. ncbi request reprint Sphincter of Oddi manometry does not predispose to post-ERCP acute pancreatitis
    Pankaj Singh
    Current affiliations Division of Gastroenterology, University Hospitals of Cleveland, Cleveland, Ohio, USA
    Gastrointest Endosc 59:499-505. 2004
    ..The secondary objective was to determine the risk factors for post-ERCP pancreatitis in patients with sphincter of Oddi dysfunction...
  37. ncbi request reprint Association of prediagnosis endoscopy with stage and survival in adenocarcinoma of the esophagus and gastric cardia
    Gregory S Cooper
    Division of Gastroenterology, University Hospitals of Cleveland, Cleveland, Ohio 44106, USA
    Cancer 95:32-8. 2002
    ..However, the actual use and clinical impact of upper gastrointestinal endoscopy in screening and surveillance for Barrett esophagus are unknown...
  38. ncbi request reprint Correlation of EUS measurement with pathologic assessment of neoadjuvant therapy response in esophageal carcinoma
    Joseph Willis
    Department of Pathology, University Hospitals of Cleveland Case Western Reserve University, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 55:655-61. 2002
    ..The aim of this study was to determine whether tumor changes measured by EUS correspond to pathologically assessed chemoradiotherapy-induced tumor regression...
  39. ncbi request reprint Long-term follow-up of patients with clinically indeterminate suspicion of pancreatic cancer and normal EUS
    Andrew Catanzaro
    University Hospitals of Cleveland Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 58:836-40. 2003
    ..The aim of this study was to determine the true negative predictive value of a normal EUS in a cohort of patients with an indeterminate suspicion of pancreatic cancer by obtaining long-term follow-up information...
  40. ncbi request reprint Prediction of outcome in acute lower-gastrointestinal haemorrhage based on an artificial neural network: internal and external validation of a predictive model
    Ananya Das
    Division of Gastroenterology, Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH 44106 5066, USA
    Lancet 362:1261-6. 2003
    ..We investigated whether ANN models using information available during triage could predict clinical outcome in patients with this disorder...
  41. ncbi request reprint Innovative methods of biliary tract diagnosis: intraductal ultrasound and tissue acquisition
    Amitabh Chak
    Case Western Reserve University School of Medicine, Division of Gastroenterology, USA
    Gastrointest Endosc Clin N Am 13:609-22. 2003
    ..Continued research into the design of the probes, which could improve durability and extend the depth of penetration, may promote more widespread use of this novel technology...
  42. ncbi request reprint Endoscopic retrograde cholangiopancreatography in children and adolescents
    Patrick R Pfau
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106 5066, USA
    J Pediatr Gastroenterol Nutr 35:619-23. 2002
    ..We sought to determine the indications, feasibility, safety, and effect on patient management of ERCP in pediatric patients of varying age...
  43. ncbi request reprint Acute pancreatitis after EUS-guided FNA of solid pancreatic masses: a pooled analysis from EUS centers in the United States
    Mohamad A Eloubeidi
    Endoscopic Ultrasound Program, University of Alabama, 1530 3rd Avenue South, ZRB 636, Birmingham, AL 35294 0007, USA
    Gastrointest Endosc 60:385-9. 2004
    ..The aim of this study was to determine the frequency and the severity of pancreatitis after EUS-guided FNA of solid pancreatic masses. A survey of centers that offer training in EUS in the United States was conducted...
  44. ncbi request reprint Identification of Barrett's esophagus in relatives by endoscopic screening
    Amitabh Chak
    Division of Gastroenterology, Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA
    Am J Gastroenterol 99:2107-14. 2004
    ..The aim of the study was to determine whether endoscopic screening would identify Barrett's esophagus (BE) in relatives of probands with BE or esophageal adenocarcinoma (EAC)...
  45. ncbi request reprint Pancreatic-stent placement for prevention of post-ERCP pancreatitis: a cost-effectiveness analysis
    Ananya Das
    Division of Gastroenterology, Mayo Clinic Scottsdale, Scottsdale, Arizona 85259, USA
    Gastrointest Endosc 65:960-8. 2007
    ..Controlled trials support pancreatic-stent placement as an effective intervention for the prevention of post-ERCP acute pancreatitis in high-risk patients...
  46. ncbi request reprint Endoscopic Doppler US probe for the diagnosis of gastric varices (with videos)
    Richard C K Wong
    Division of Gastroenterology, Department of Medicine, University Hospitals Case Medical Center, 11100 Eucl id Avenue, Cleveland, OH 44106, USA
    Gastrointest Endosc 65:491-6. 2007
    ..Gastric varices may appear similar to enlarged gastric folds and submucosal neoplasms at endoscopy. A simple endoscopic method to diagnose variceal blood flow without formal EUS could be clinically useful...
  47. ncbi request reprint EUS in submucosal tumors
    Amitabh Chak
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 56:S43-8. 2002
  48. ncbi request reprint Endoscopic ultrasound-guided fine needle aspiration in the diagnosis of mediastinal masses of unknown origin
    Marc F Catalano
    St Luke s Medical Center, Pancreatic Biliary Center, Milwaukee, Wisconsin, USA
    Am J Gastroenterol 97:2559-65. 2002
    ..The aim of this study was to determine the diagnostic accuracy, impact on subsequent workup, and role of EUS-FNA in treating mediastinal masses of unknown cause...
  49. ncbi request reprint Ultrathin esophagoscopy in screening for Barrett's esophagus at a Veterans Administration Hospital: easy access does not lead to referrals
    Matt Atkinson
    Case Western Reserve University, Cleveland, Ohio, USA
    Am J Gastroenterol 103:92-7. 2008
    ..Our purpose was to evaluate primary-care physician referrals for BE screening when unsedated esophagoscopy is made available...
  50. ncbi request reprint EUS-guided fine needle aspiration of the liver: indications, yield, and safety based on an international survey of 167 cases
    Jorgen tenBerge
    Medical University of South Carolina, Charleston, South Carolina, Institut Paoli Calmettes, Marseilles, France
    Gastrointest Endosc 55:859-62. 2002
    ..The liver is a common site of metastases for various malignancies. EUS-guided fine needle aspiration (EUS-FNA) of liver masses has only been reported in small series from single centers...
  51. ncbi request reprint Gastroesophageal reflux disease-associated esophagitis induces endogenous cytokine production leading to motor abnormalities
    Florian Rieder
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio
    Gastroenterology 132:154-65. 2007
    ....
  52. ncbi request reprint Hypernephroma metastatic to the pancreas
    Patrick R Pfau
    University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio, USA
    Gastrointest Endosc 55:81. 2002
  53. ncbi request reprint Patient tolerance and acceptance of unsedated ultrathin esophagoscopy
    Ashley L Faulx
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 55:620-3. 2002
    ..Unsedated endoscopy has not gained wide acceptance in the United States. Factors that may predict tolerance and acceptance of unsedated endoscopy are ill defined...
  54. doi request reprint Infectious implications in the porcine model of natural orifice transluminal endoscopic surgery (NOTES) with PEG-tube closure: a quantitative bacteriologic study
    Michael F McGee
    Department of Surgery, Case Medical Center, Case Western Reserve University, Cleveland, OH 44106, USA
    Gastrointest Endosc 68:310-8. 2008
    ..Obtaining reliable closure of transvisceral defects currently limits natural orifice transluminal endoscopic surgery (NOTES). PEG tubes are potential means of managing NOTES gastrotomies...
  55. doi request reprint EUS-FNA in unresectable cholangiocarcinoma: a novel indication
    Michael J Pollack
    Gastrointest Endosc 67:444-5. 2008
  56. doi request reprint Late phase TNF-alpha depression in natural orifice translumenal endoscopic surgery (NOTES) peritoneoscopy
    Michael F McGee
    Case Advanced Surgical Endoscopy Team CASE T Laboratory, Departments of Surgery and Gastroenterology, Case Medical Center, Case Western Reserve University, Cleveland, Ohio 44106, USA
    Surgery 143:318-28. 2008
    ..Measurement of interleukin-1 (IL-1), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-alpha) is a validated method to quantify surgical stress. The physiologic and immunologic impact of NOTES is unknown...
  57. ncbi request reprint EUS spectrum analysis for in vivo characterization of pancreatic and lymph node tissue: a pilot study
    Ronald E Kumon
    Division of Gastroenterology, University Hospitals Case Medical Center and Case Western Reserve University, Cleveland, Ohio 44106 5066, USA
    Gastrointest Endosc 66:1096-106. 2007
    ..By using information otherwise discarded by conventional EUS systems, quantitative spectral analysis of the raw radiofrequency (RF) signals underlying EUS images enables tissue to be characterized more objectively...
  58. ncbi request reprint EUS-guided fine needle aspiration of idiopathic abdominal masses
    Marc F Catalano
    St Lukes Medical Center, Pancreatic Biliary Center, Milwaukee, Wisconsin, USA
    Gastrointest Endosc 55:854-8. 2002
    ..This study evaluated the diagnostic accuracy of EUS-FNA of abdominal masses of unknown cause and its impact on subsequent evaluation and therapy...
  59. ncbi request reprint Effectiveness of open-access endoscopy in routine primary-care practice
    Roger J Charles
    The Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Ohio 44106, USA
    Gastrointest Endosc 57:183-6. 2003
    ..However, the effect of open-access endoscopy on the care of patients in routine clinical practice has not been studied...
  60. ncbi request reprint Prospective evaluation of 4-mm diameter endoscopes for esophagoscopy in sedated and unsedated patients
    Andrew Catanzaro
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA
    Gastrointest Endosc 57:300-4. 2003
    ..Patient tolerance for an unsedated examination with the 4-mm endoscopes was assessed and the performance characteristics of the battery-powered and video 4-mm endoscopes were compared...
  61. ncbi request reprint Success and shortcomings of a clinical care pathway in the management of acute nonvariceal upper gastrointestinal bleeding
    Patrick R Pfau
    Division of Gastroenterology, Department of Medicine, Quality Center, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106 5066, USA
    Am J Gastroenterol 99:425-31. 2004
    ..We sought to establish if a GI bleeding clinical care pathway could improve the quality and cost effectiveness of inpatient medical care...
  62. ncbi request reprint An international survey of the clinical practice of EUS
    Ananya Das
    Division of Gatroenterology, University Hospitals of Cleveland, Case Western Reserve University, Ohio 44106, USA
    Gastrointest Endosc 60:765-70. 2004
    ..No comparative information exists regarding clinical variations in EUS practice patterns among American and international endosonographers...
  63. ncbi request reprint Pancreatic cysts: much ado or not enough?
    Amitabh Chak
    Clin Gastroenterol Hepatol 3:964-6. 2005
  64. ncbi request reprint Accuracy of endoscopic optical coherence tomography in the detection of dysplasia in Barrett's esophagus: a prospective, double-blinded study
    Gerard Isenberg
    Department of Medicine, Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, OH 44106 5066, USA
    Gastrointest Endosc 62:825-31. 2005
    ..This study evaluated the accuracy of EOCT for the diagnosis and the exclusion of dysplasia in patients with Barrett's esophagus...
  65. ncbi request reprint In vivo optical coherence tomography imaging of the pancreatic and biliary ductal system
    Pankaj Singh
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio, USA
    Gastrointest Endosc 62:970-4. 2005
    ..The aim of this study was to obtain in vivo OCT images of dog pancreatic and biliary ducts, and to correlate the images with histology...
  66. ncbi request reprint Primary care physician attitudes toward endoscopic screening for GERD symptoms and unsedated esophagoscopy
    Vikram Boolchand
    Department of Medicine, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio, USA
    Gastrointest Endosc 63:228-33. 2006
    ..Unsedated esophagoscopy (UE) is a less costly alternative to standard EGD for identifying BE. The aim of this study was to determine the indications for EGD referral, the barriers to screening, and the interest in performing UE...
  67. ncbi request reprint Quality indicators for endoscopic retrograde cholangiopancreatography
    Todd H Baron
    ASGE Communications Department, 1520 Kensington Road, Suite 202, Oak Brook, IL 60523, USA
    Gastrointest Endosc 63:S29-34. 2006
  68. ncbi request reprint Quality indicators for endoscopic ultrasonography
    Brian C Jacobson
    ASGE Communications Department, 1520 Kensington Road, Suite 202, Oak Brook, IL 60523, USA
    Gastrointest Endosc 63:S35-8. 2006
  69. ncbi request reprint Quality indicators for endoscopic retrograde cholangiopancreatography
    Todd H Baron
    Am J Gastroenterol 101:892-7. 2006
  70. ncbi request reprint Quality indicators for endoscopic ultrasonography
    Brian C Jacobson
    Am J Gastroenterol 101:898-901. 2006
  71. ncbi request reprint Association of ampullary and colorectal malignancies
    Ananya Das
    Division of Gastroenterology, University Hospitals of Cleveland, Case Western Reserve University, Cleveland, Ohio 44106, USA
    Cancer 100:524-30. 2004
    ....
  72. ncbi request reprint Temporal trend in relative risk of second primary colorectal cancer
    Ananya Das
    Division of Gastroenterology, Mayo Clinic Scottsdale, Scottsdale, Arizona 85259, and Division of Gastroenterology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
    Am J Gastroenterol 101:1342-7. 2006
    ..Thus, it is likely that the risk for second primary CRC also has changed over the years...
  73. ncbi request reprint A primer on natural orifice transluminal endoscopic surgery: building a new paradigm
    Michael F McGee
    Department of Surgery Case, University Hospitals of Cleveland, Cleveland, Ohio 44106, USA
    Surg Innov 13:86-93. 2006
    ..This article reviews the status, contemporary body of literature, limitations, and potential future implications accompanying the development of NOTES...
  74. ncbi request reprint Evaluation of a new curved linear array echoendoscopy system for EUS
    Dany K Shamoun
    Division of Gastroenterology and Hepatology, University of Iowa Hospitals and Clinics, Iowa City 52242, USA
    Gastrointest Endosc 57:937-42. 2003
    ..EUS-FNA can be used to accurately diagnose and stage GI and pulmonary neoplasms. This study evaluated the performance characteristics of a new compact linear EUS system during EUS-FNA...
  75. ncbi request reprint Should there be light in the esophageal tunnel? An appraisal of optical coherence tomography in Barrett's esophagus
    Gerard Isenberg
    Gastrointest Endosc 65:57-9. 2007
  76. ncbi request reprint Clinical utility of intraductal US for evaluation of choledocholithiasis
    Andrew Catanzaro
    University Hospitals of Cleveland and Louis Stokes Cleveland Veterans Affairs Medical Center, Case Western Reserve University School of Medicine, Ohio 44106, USA
    Gastrointest Endosc 57:648-52. 2003
    ..This study aimed to determine the clinical utility of intraductal US for patient management...
  77. ncbi request reprint Does prophylactic pancreatic stent placement reduce the risk of post-ERCP acute pancreatitis? A meta-analysis of controlled trials
    Pankaj Singh
    Division of Gastroenterology, Department of Internal Medicine, University Hospitals of Cleveland, Ohio, USA
    Gastrointest Endosc 60:544-50. 2004
    ..The aim of this meta-analysis was to determine whether temporary stent placement across the main pancreatic-duct orifice lowers the frequency of post-ERCP acute pancreatitis in patients at high risk for this complication...

Research Grants5

  1. Familial Aggregation of Barrett's Esophagus
    Amitabh Chak; Fiscal Year: 2003
    ..They will also define a population at risk in whom interventions to prevent or eradicate Barrett's esophagus can be applied. ..
  2. PATIENT ORIENTED RESEARCH IN BARRETT'S ESOPHAGUS
    Amitabh Chak; Fiscal Year: 2007
    ....