Original Papers in
Referred Journals
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Professor of Medicine
MD, FACP, FACG, FASGE
* Denotes generated editorial
1. Rex D, Lumeng L, Eble J, Rex L. Intrahepatic cholestasis and sicca complex following thiabendazole: report of a case and review of the literature. Gastroenterology 1983;85:718-21.
2. Rex D, Bosron W, Li T-K. Purification and characterization of mouse alcohol dehydrogenase from two inbred strains that differ in total liver enzyme activity. Biochem Genet 1984;22:115-24.
3. Rex D, Duckworth W. Remission of overt diabetes mellitus associated with an oral epidermoid carcinoma. Amer J Med Sci 1984;287:43-5.
4. Rex D, Bosron W, Smialek J, Li T-K. Alcohol and aldehyde dehydrogenase isoenzymes in North American Indians. Alcoholism: Clin Exp Res 1985;9:147-52.
5. Rex D, Lehman GA. Gastric concretion forming around a suture nidus and mimicking a gastric polyp on radiographs. Endoscopy 1985;17:196-7.
6. Rex D, Lehman GA, Lappas JC, Miller RE. Sensitivity of double-contrast barium study for left-colon polyps. Radiology 1986;158:69-72.
7. Rex D, Bosron WF, Dwulet F, Li T-K. Purification and characterization of the Danish (Skive) variant of mouse liver alcohol dehydrogenase. Biochem Genet 1987;25:111-21.
8. Maglinte DT, Lappas JC, Kelvin FM, Rex DK, Chernish SM. Small bowel radiography: how, when and why? Radiology 1987;163:297-306.
9. Rex DK, Hast JD, Mathis JG, Elmore M. Comparison of radially sensitive and circumferentially sensitive microtransducer esophageal manometry probes in normal subjects. Am J Gastroenterol 1988;83:151-4.
10. Rex DK, Jersild RA. Further characterization of the pigment in pseudomelanosis duodeni in three patients. Gastroenterology 1988;95:177-82.
11. Rex DK, Lappas JC, Maglinte DDT, Malczewski MC, Kopecky KA, Cockerill EM. Enteroclysis in the evaluation of suspected small intestinal bleeding. Gastroenterology 1989;97:58-60.
12. O'Connor KW, Lehman GA, Yune H, Brunelle R, Christiansen P, Hast J, Compton M, McHenry R, Klatte E, Cockerill E, Holden R, Becker G, Kopecky K, Hawes R, Pound D, Rex D, et al. Comparison of three nonsurgical treatments for bleeding esophageal varices. Gastroenterology 1989;96:899-906.
13. Rex DK, Weddle RA, Lehman GA, Pound DC, O'Connor KW, Hawes RH, Dittus RS, Lappas JC, Lumeng L. Flexible sigmoidoscopy plus air contrast barium enema versus colonoscopy for suspected lower gastrointestinal bleeding. Gastroenterology 1990;98:855-61.
14. Rex DK, Lappas JC, Maglinte DDT, Kelvin FM. Barium enema utilization within a defined geographic region: a survey. Gastrointestinal Radiology 1990;15:265-7.
15. Rex DK, Lappas JC, Popp B. Association of anterior ectopic anus and partial absence of levator musculature in a woman with impaired defecation. Dis Colon Rectum 1990;33:974-6.
16. Rex DK, Lehman GA, Hawes RH, O'Connor KW, Smith JJ. Performing screening flexible sigmoidoscopy using colonoscopes: experience in 500 subjects. Gastrointest Endosc 1990;36:486-8.
17. Rex DK, Lehman GA, Hawes RH, Ulbright TM, Smith JJ. Screening colonoscopy in asymptomatic average-risk persons with negative fecal occult blood tests. Gastroenterology 1991;100:64-7.
18. Shrake PD, Rex DK, Lappas JL, Maglinte DDT. Radiographic evaluation of suspected small bowel obstruction. Am J Gastroenterol 1991;86:175-8.
19. Kumar S, Rex DK. Failure of physicians to recognize acetaminophen hepatotoxicity in chronic alcoholics. Arch Int Med 1991;151:1189-91.
20. Rex D, Tarver R, Wiersma M, O'Conner KW, Lappas JC, Tapatowski K. Endoscopic transesophageal fine needle aspiration of mediastinal masses. Gastrointest Endosc 1991;37:465-8.
21. Rex D, Lappas JC, Goulet R. Combined anorectal manometry and defecography in 50 consecutive adults with fecal incontinence. Dis Colon Rectum 1992;35:1040-5.
22. Rex D, Rogers D, Mohammed Y, Williams E. Post cardiac surgery tamponade mimicking acute hepatitis. J Clin Gastroenterol 1992;14:136-8.
23. Rex D, Lewis B, Waye J. Colonoscopy and endoscopic therapy for delayed post-polypectomy hemorrhage. Gastrointest Endosc 1992;38:127-9.
24. Mueller BA, Rex DK, Figueroa N, Greene P, Brater DC. A pharmacokinetic and endoscopic comparison of an oral and an experimental buccal piroxicam formulation. Pharmacotherapy 1992;12:93-7.
27. Rex D, Ulbright T, Smith J, Lehman G. Distal colonic hyperplastic polyps do not predict proximal adenomas in asymptomatic average-risk persons. Gastroenterology 1992;102:317-9.
28. Rex D, Fitzgerald J, Goulet R. Chronic constipation with encopresis persisting beyond 15 years of age. Dis Colon Rectum 1992;35:242-4.
29. Wiersema MJ, Hawes RH, Tao L-C, Kopecky KK, Rex DK, Kumar SK, Lehman GA. Endoscopic ultrasound as an adjunct to fine needle aspiration cytology of the upper and lower gastrointestinal tract. Gastrointest Endosc 1992;38:35-9.
30. *Rex DK, Lappas JC, Goulet R, Madura J. Selection of constipated patients for subtotal colectomy candidates. J Clin Gastroenterol 1992;15:212-7.
31. Mark D, Rex DK, Lappas JC. Quality of air contrast barium enema performed the same day as incomplete colonoscopy with air insufflation. Gastrointest Endosc 1992;38:693-5.
32. Rex D. Gastroesophageal reflux disease in adults: pathophysiology, diagnosis, management. J Fam Pract 1992;35:673-81.
33. *Rex DK, Kumar S. Recognizing acetaminophen hepatotoxicity in chronic alcoholics. Post Grad Med 1992;91:241-5.
34. *Rex DK, Sledge GW, Harper PA, Ulbright TM, Loehrer PJ, Helper DJ, Smith JJ, Wiersema MJ, Hawes RH, Lehman GA. Colonic adenomas in asymptomatic women with a history of breast cancer. Am J Gastroenterol 1993;88:2009-14.
35. *Rex D, Sledge G, Harper P, Ulbright T, Loehrer P, Helper D, Smith J, Wiersema M, Hawes R, Lehman G. Colonic neoplasia in asymptomatic persons with negative fecal occult blood tests: influence of age, gender, and family history. Am J Gastroenterol 1993;88:825-31.
36. Rathgaber S, Rex DK. Right upper quadrant abdominal pain, diagnosis in patients without evident gallstones. Postgrad Med 1993;94:153-163.
37. Rex DK. An etiologic approach to duodenal and gastric ulcer. J Fam Prac 1994;38:60-7.
38. Rex DK, Lehman GA, Ulbright TM, Smith JJ, Hawes RH. The yield of a second screening flexible sigmoidoscopy in average-risk persons after one negative examination. Gastroenterology 1994;106:593-5.
39. Cutler CS, Rex DK, Hawes RH, Lehman GA. Does routine intravenous glucagon administration facilitate colonoscopy? a randomized trial. Gastrointest Endosc 1995;42:346-50.
40. Rex DK, Mark D, Clarke B, Lappas JC, Lehman GA. Flexible sigmoidoscopy plus air contrast barium enema versus colonoscopy for evaluation of symptomatic patients without evidence of bleeding. Gastrointest Endosc 1995;42:132-8.
41. Cutler C, Rex DK, Lehman GA. Enteroscopic identification of ectopic small bowel varices. Gastrointest Endosc 1995;41:605-7.
42. Rex DK. Colonoscopy: a review of its yield for cancers and adenomas by indication. Am J Gastroenterol 1995;90:353-65.
43. Foutch PG, Rex DK, Lieberman D. Prevalence and natural history of colonic angiodysplasia among healthy asymptomatic people. Am J Gastroenterol 1995;90:564-7.
44. *Lemmel GT, Haseman JH, Rex DK, Rhamani EY. Neoplasia distal to the splenic flexure in persons with proximal colon cancer. Gastrointest Endosc 1996;44:109-11.
45. Ikenberry S, Lappas JC, Rex DK. Defecography in healthy subjects comparing three different contrast media. Radiology 1996;201:233-8.
46. *Rex DK, Cummings OW, Helper DJ, Nowak TV, McGill JM, Chiao GZ, Kwo PY, Gottlieb KT, Ikenberry SO, Gress FG, Lehman GA, Born LJ. Five year incidence of adenomas after negative colonoscopy in asymptomatic average-risk persons. Gastroenterology 1996;111:1178-81.
47. *Rex DK, Rahmani EY, Haseman JH, Lemmel GT, Kaster S, Buckley JS. Relative sensitivity of colonoscopy and barium enema for detection of colorectal cancer in clinical practice. Gastroenterology 1997;112:17-23.
48. *Haseman J, Lemmel GT, Rahmani EY, Rex DK. Failure of colonoscopy to detect colorectal cancer: Evaluation of 47 cases in 20 hospitals. Gastrointest Endosc 1997;45:451-5.
49. *Rex DK, Cutler CS, Lemmel GT, Rahmani EY, Clark D, Helper D. Colonoscopic miss rates of adenomas determined by back-to-back colonoscopies. Gastroenterology 1997;112:24-8.
50. Kozarek RA, Raltz S, Marcon N, Koretan P, Haber, G, Lightdale C, Stevens P, Lehman G, Rex D, et al. Use of the 25 mm flanged esophageal Z stent for malignant dysphagia: a prospective multicenter trial. Gastrointest Endosc 1997;46:156-60.
51. Alikhan M, Cummings O, Rex D. Subtotal colectomy in a patient with collagenous colitis associated with colonic carcinoma and systemic lupus erythematosis. Am J Gastroenterol 1997;92:1213-5.
52. *Rex DK., Imperiale TF, Portish V. Patients willing to try colonoscopy with sedation only as needed: associated clinical factors and results of a randomized controlled trial. Gastrointest Endosc 1999;49:554-9.
53. *Rex DK, Vining D, Kopecky KA. An initial experience with screening for colon polyps using spiral CT with and without CT colography. Gastrointest Endosc 1999;50:309-13.
54. Rex DK, Chak A, Vasudeva R, Gross T, Lieberman D, Bhattacharya I, Sack E, Wiersema M, Farraye F, Wallace M, Barrido D, Cravens E, Zeabart L, Bjorkman D, Lemmel T, Buckley S. Prospective determination of distal colon findings by colonoscopy in patients with proximal colon cancer. Gastrointest Endosc 1999;49;727-30.
55. Rex D, Alikhan M, Cummings O, Ulbright T. Accuracy of pathologic interpretation of colorectal polyps by general pathologists in community practice. Gastrointest Endosc 1999;50:468-74.
56. *Schoenfeld P, Lipscomb S, Crook J, Dominguez J, Butler J, Holmes L, Cruess D, Rex, D. Accuracy of polyp detection by nurse endoscopists and gastroenterologists during flexible sigmoidoscopy: a randomized controlled trial. Gastroenterology 1999;117:312-8.
57. Alikhan M, Rex D, Khan A, Rahmani E, Cummings O, Ulbright T. Variable pathologic interpretation of columnar lined esophagus by general pathologists in community practice. Gastrointest Endosc 1999;50:23-6.
58. Rex DK, Rhamani EY. New endoscopic finding associated with hyperplastic polyps. Gastrointest Endosc. 1999;50:704-6.
59. Rex DK. Still photography versus videotaping for documentation of cecal intubation: a prospective study. Gastrointest Endosc 2000;51:451-9.
60. Rex DK. Colonoscopic withdrawal technique is associated with adenomas miss rates. Gastrointest Endosc 2000;51:33-6.
61. *Rex DK, Khan AM, Shah P, Newton J, Cummings OW. Screening colonoscopy in asymptomatic average-risk African-Americans. Gastrointest Endosc 2000;51:524-7.
62. *Rex DK. Effect of variable stiffness colonoscopes on cecal intubation times for routine colonoscopy by an experienced examiner in sedated patients. Endoscopy 2001;33:60-4.
63. Rex DK, Bond J, Feld A. Medical-legal risk of incident colorectal cancers after clearing colonoscopy. Am J Gastroenterol 2001;96:952-7.
64. Maglinte DDT, Hallett RL, Rex DK, et al. Imaging of small bowel Crohn’s disease: can abdominal CT replace barium radiography? Emergency Radiology 2001;8:127-33.
65. Bender GN, Maglinte DDT, McLarney JH, Rex DK, Kelvin FM. Malignant melanoma: patterns of metastasis to the small bowel, reliability of imaging studies, and clinical relevance. Am J Gastroenterol 2001;96:2392-400.
66. Villavicencio R, Rex DK, Rahmani EY. Efficacy and complications of argon plasma coagulation for hematochezia related to radiation proctopathy. Gastrointest Endosc 2002;55:70-4.
67. Rex DK, Ulbright TM. Step section histology of proximal colon polyps that appear hyperplastic by endoscopy. Am J Gastroenterol 2002;97:1530-4.
68. Rex DK, Overley C, Kinser K, Coates M, Lee A, Goodwine BW, Strahl E, Lemler S, Sipe B, Rahmani E, Helper D. Safety of propofol administered by registered nurses with gastroenterologist supervision in 2,000 endoscopic cases. Am J Gastroenterol 2002;97:1159-63.
69. Rex DK, Imperiale T, Latinovich D, Bratcher L. Impact of bowel preparation on efficiency and cost of colonoscopy. Am J Gastroenterol 2002;97:1696-700.
70. *Suleiman S, Rex DK, Sonnenberg A. Chemoprevention of colorectal cancer by aspirin: a cost- effectiveness analysis. Gastroenterology 2002;122:78-84.
71. Zamir S, Rex D. An initial investigation of efficiency in endoscopy delivery. Am J Gastroenterol 2002;97:1968-72.
72. Sipe BW, Rex DK, Latinovich D, Overley C, Kinser K, Bratcher L, Kareken D. Propofol vs. midazolam/meperidine for outpatient colonoscopy: administered by nurses and supervised by endoscopists. Gastrointest Endosc 2002;55:815-25.
73. Rex DK, Goodwine BW. Method of colonoscopy in 42 consecutive patients presenting after prior incomplete colonoscopy. Am J Gastroenterol 2002;97:1148-51.
74. Rex DK, Chasen R, Pochapin MB. Safety and efficacy of two reduced dosing regimens of sodium phosphate tablets for preparation prior to colonoscopy. Aliment Pharmacol Ther 2002;16:937-44.
75. Schoenfeld P, Shad J, Ormseth E, Coyle W, Butler J, Schindler W, Kikendall WJ, Furlong C, Sobin L,Cruess D, Rex D. PREdictive value of DIminutive Colonic adenoma Trial: THE PREDICT TRIAL. Clin Gastroenterol Hepatol 2003;1:195-201.
76. Ghorai S, TM Ulbright, Rex DK. Endoscopic findings of diverticular inflammation in colonoscopy patients without clinical acute diverticulitis: prevalence and endoscopic spectrum. Am J Gastroenterol 2003;98:802-6.
77. Walker JA, McIntyre RD, Schleinitz PF, Jacobson KN, Haulk AA, Adesman P, Tolleson S, Parent R, Donnelly R, Rex DK. Nurse-administered propofol sedation without anesthesia specialists in 9152 endoscopic cases in an ambulatory surgery center. Am J Gastroenterol 2003;98:1744-50.
78. Rex DK. Accessing proximal aspects of folds and flexures during colonoscopy: impact of a pediatric colonoscope with a short bending section. Am J Gastroenterol 2003;98:1504-7.
79. Liangpunsakul S, Chadalawada V, Rex DK, Maglinte D, Lappas J. Wireless capsule endoscopy detects small bowel ulcers in patients with normal results from state of the art enteroclysis. Am J Gastroenterol 2003;98:1295-8.
80. Rex DK, Cummings OW, Shaw M, Cumings MD, Wong RK, Vasudeva RS, Dunne D, Rahmani EY, Helper DJ. Screening for Barrett’s esophagus in colonoscopy patients with and without heartburn. Gastroenterology 2003;125:1670-7.
81. Rex DK, Chadalawada V, Helper DJ. Wide angle colonoscopy with a prototype instrument: Impact on miss rates and efficiency determined by back-to-back colonoscopies. Am J Gastroenterol 2003;889:2000-5.
82. Bilimoria KY, Rex DK, Eagan RK. Colonoscopic identification of a foreign body causing a hepatic abscess. J Clin Gastro 2003;37:82-5.
83. Weston BR, Helper DJ, Rex DK. Positive predictive value of endoscopic features deemed typical of gastric fundic gland polyps. J Clin Gastroenterol 2003;36(5):399-402.
84. Cash BD, Schoenfeld P, Rex DK. An evidence-based medicine approach to studies of diagnostic tests: assessing the validity of virtual colonoscopy. Clin Gastroenterol Hepatol 2003;1:136-44.
85. Weston BR, Chadalawada V, Chalasani N, Kwo P, Overley C, Coates M, Strahl E, Rex DK. Nurse administered propofol versus midazolam and meperidine for upper endoscopy in cirrhotic patients. Am J Gastroenterol 2003;98:2440-7.
86. Liangpunsakul S, Mays L, Rex DK. Performance of GIVEN® suspected blood indicator. Am J Gastroenterol 2003;98:2676-8.
87. Ulmer BJ, Hansen JJ, Overley CA, Symms MR, Chadalawada V, Liangpunsakul S, Strahl E, Mendel AM, Rex DK. Propofol versus midazolam/fentanyl for outpatient colonoscopy: administration by nurses supervised by endoscopists. Clin Gastroenterol Hepatol 2003;1:425-32.
88. *Cotton PB, Durkalski VL, Pineau BC, Palesch YY, Mauldin PD, Hoffman B, Vining DJ, Small WC, Affronti J, Rex DK, et al. Computed tomographic colonography (virtual colonoscopy). A multicenter comparison with standard colonoscopy for detection of colorectal neoplasia. JAMA 2004;291:1713-9.
89. Hansen JJ, Ulmer BJ, Rex DK. Technical performance of colonoscopy in patients sedated with nurse-administered propofol. Am J Gastroenterol 2004;99:52-6.
90. Harrison M, Singh N, Rex DK. Impact of proximal colon retroflexion on adenoma miss rates. Am J Gastroenterol 2004;99:519-22.
91. Singh N, Harrison M, Rex DK. A survey of colonoscopic polypectomy practices among clinical gastroenterologists. Gastrointest Endosc 2004;60:414-8.
92. Raju GS, Rex DK, Kozarek RA, Ahmed I, Brining D, Pasricha PJ. A novel shape-locking guide for prevention of sigmoid looping during colonoscopy. Gastrointest Endosc 2004;59:416-9.
93. Chen SC, Rex DK. An initial investigation of bispectral monitoring as an adjunct to nurse administered propofol sedation for colonoscopy. Am J Gastroenterol 2004;99:1081-6.
94. Chen SC, Goodwine B, Rex DK. Removal of embedded foreign bodies in the gastrointestinal tract after division by endoscopic laser. Gastrointest Endosc 2004;60:653-4.
95. Deenadayalu VP, Chadalawada V, Rex DK. 170° wide angle colonoscope: effect on efficiency and miss rates. Am J Gastroenterol 2004;99:2138-42.
96. Subramanian S, Liangpunsakul S, Rex DK. Preprocedure patient values regarding sedation for colonoscopy. J Clin Gastroenterol 2005;39:516-9.
97. Chen SC, Liangpunsakul S, Rex DK. Watermelon colon treated by argon plasma coagulation. Gastrointest Endosc 2005;61:631-3.
98. Rex DK Khashab M, Raju GS, Pasricha J, Kozarek R. Insertibility and safety of a shape-locking device for colonoscopy. Am J Gastroenterol 2005;100:817-20.
99. Kessler WR, Rex DK. Impact of bending section length on insertion and retroflexion properties of pediatric and adult colonoscopes. Am J Gastroenterol 2005;100:1290-5.
100. Khashab M, Rex DK. Efficacy and tolerability of a new formulation of sodium phosphate tablets (INKP-101), and a reduced sodium phosphate dose, in colon cleansing: a single-center open-label pilot trial. Aliment Pharmacol Ther 2005;21:465-8.
101. *Deenadayalu VP, Rex DK. Colon polyp retrieval after cold snaring. Gastrointest Endosc 2005;62:253-6.
102. *Rex DK, Heuss LT, Walker JA, Qi R. Trained registered nurses / endoscopy teams can administer propofol safely for endoscopy. Gastroenterology 2005;129:1384-91.
103. *Rex DK, Khashab M. Colonoscopic polypectomy in retroflexion. Gastrointest Endosc 2006;63:144-8.
104. Arber N, Kuwada S, Leshno M, Sjodahl R, Hultcrantz R, Rex D. Sporadic adenomatous polyp regression with exisulind is effective but toxic: a randomised, double-blind, placebo-controlled, dose- response study. Gut 2006;55:367-73.
105. Vucelic B, Rex D, Pulanic R, Pfefer J, Hrstic I, Levin B, Halpern Z, Arber N. The Aer-O-Scope: proof of concept of a pneumatic, skill-independent, self-propelling, self-navigating colonoscope. Gastroenterology 2006;130:672-7.
106. Pfefer J, Grinshpon R, Rex D, Levin B, Rosch T, Arber N, Halpern Z. The Aer-O-Scope: proof of concept of a pneumatic, skill independent, self propelling, self navigating colonoscopy in the pig model. Endoscopy 2006;38:144-8.
107. Drake LM, Chen SC, Rex DK. Efficacy of bispectral monitoring as an adjunct to nurse-administered propofol sedation for colonoscopy: a randomized controlled trial. Am J Gastroenterol 2006;101:2003-7.
108. VanNatta M, Rex DK. Propofol alone titrated to deep sedation versus propofol in combination with narcotics and/or benzodiazepines and titrated to moderate sedation for colonoscopy. Am J Gastroenterol 2006;101:2209-17.
109. Rex DK, Schwartz H, Goldstein M, Popp J, Katz S, Barish C, Karlstadt RG, Rose M, Walker K, Lottes S, Ettinger N, Zhang B. Safety and colon-cleansing efficacy of a new residue-free formulation of sodium phosphate tablets. Am J Gastroenterol 2006;101:2594-604.
110. Kann L, Han J, Ahlquist D, Levin T, Rex, D, Whitney D, Markowitz S, Shuber A. Improved marker combination for detection of de novo genetic variation and aberrant DNA in colorectal neoplasia. Clinical Chemistry 2006;52:2299-302.
111. Rex DK. Review article: Moderate sedation for endoscopy: sedation regimens for non-anesthesiologists. Aliment Pharmacol Ther 2006;24:163-71.
112. Rex DK. Maximizing detection of adenomas and cancers during colonoscopy. Am J Gastroenterol 2006;101:2866-77.
113. *Chen SC, Rex DK. Endoscopist can be more powerful than age and male gender in predicting adenoma detection at colonoscopy. Am J Gastroenterol 2007;102:856-61.
114. Overhiser AJ, Rex DK. Work and resources needed for endoscopic resection of large sessile colorectal polyps. Clin Gastroenterol Hepatol 2007;5:1076-9.
115. Rex DK, Chen SC, Overhiser AJ. Colonoscopy technique in consecutive patients referred for prior incomplete colonoscopy. Clin Gastroenterol Hepatol 2007;5:879-83.
116. Rex DK, Helbig C. High yields of small and flat adenomas with high-definition colonoscopes using either white light or narrow band imaging. Gastroenterology 2007;133:42-7.
117. Rex DK. Dosing considerations in the use of sodium phosphate bowel preparations for colonoscopy. Annals of Pharmacotherapy 2007;41:1466-75.
119. Saad A, Rex DK. Colonoscopy-induced splenic injury: report of 3 cases and literature review. Dig Dis Sci, 2008;53:892-8.
120. Chen SC, Rex DK. Variable detection of non-adenomatous polyps by individual endoscopists at colonoscopy and correlation with adenoma detection. J Clin Gastroenterol 2008:42:704-7.
121. Fatima H, Rex DK, Rothstein R, Rahmani E, Nehme O, Dewitt J, Helper D, Toor A, Benson S. Cecal insertion and withdrawal times with wide-angle versus standard colonoscopes: a randomized controlled trial. Clin Gastroenterol Hepatol 2008;6:109-14.
122. Rex DK, Eid E. Considerations regarding the present and future roles of colonoscopy in colorectal cancer prevention. Clin Gastroenterol Hepatol 2008;6:506-14.
123. Imperiale TF, Kahi CJ, Stuart JS, Qi R, Born LJ, Glowinski EA, Rex DK. Risk factors for advanced sporadic colorectal neoplasia in persons younger than age 50. Cancer Detect Prev 2008;32:33-8.
124. Gagovic V, Rex DK. Gastroenterologists’ patient instructions for oral sodium phosphate solution for colonoscopy preparation: a survey among gastroenterologists in the state of Indiana. J Clin Gastroenterol 2008,42:1070-3.
125. Saad A, Rex DK. Routine rectal retroflexion during colonoscopy has a low yield for neoplasia. World J Gastroenterol 2008;14:6503-5.
126. *Ahlquist DA, Sargent DJ, Loprinzi CL, Levin TR, Rex DK, Ahnen DJ, Knigge K, Lance P, Burgart LJ, Hamilton SR, Allison JE, Lawson MJ, Devens ME, Harrington JJ, Hillman SL. Stool DNA and occult blood testing for screen-detection of colorectal neoplasia: a prospective multi-center comparison. Ann Intern Med 2008;149:441-50.
127. Mattar W, Rex DK. Large sessile adenomas are associated with a high prevalence of synchronous advanced adenomas. Clin Gastroenterol Hepatol 2008;6:877-9.
128. Rex DK, Overhiser AJ, Chen SC, Cummings OW, Ulbright TM. Estimation of impact on American College of Radiology recommendations on CT colonography reporting for resection of high-risk-adenoma findings. Am J Gastroenterol 2009;104:149-53.
129. *Khashab M, Rusche M, Rex DK. Incidence and predictors of “late” recurrences after endoscopic piecemeal resection of large sessile adenomas. Gastrointest Endosc 2009;70:344-9.
130. Kahi CJ, Imperiale TF, Juliar B, Rex DK. Effect of screening colonoscopy on colorectal cancer incidence and mortality. Clin Gastroenterol Hepatol 2009;7:770-5.
131. *Rex DK. Narrow band imaging without optical magnification for histologic analysis of colorectal polyps. Gastroenterology 2009;136:1174-81.
132. Zou H, Harrington JJ, Jiang X, Loprinizi C, Levine TR, Rex DK, Ahnen D, Knigge K, Lance P, Sargent D, Ahlquist DA. High detection rates of colorectal neoplasia by stool DNA testing with a novel digital melt curve assay. Gastroenterology 2009;136:459-70.
133. Rex DK, Deenadayalu VP, Eid E, Imperiale T, Walker JA, Sandhu K, Clarke AC, Hillman LC, Horiuchi A, Cohen LB, Heuss LT, Peter S, Beglinger C, Sinnott JA, Welton T, Rofail M, Subei I, Sleven R, Jordan P, Goff J, Gerstenberger PD, Munnings H, Tagle M, Sipe BW, Wehrmann T, DiPalma J, Occhipinti KE, Barbi E, Riphaus A, Amann ST, Tohda G, McClellan T, Thueson C, . Morse J, Meah N. Endoscopist-directed administration of propofol: a world-wide safety experience. Gastroenterology 2009;137:1229-37.
134. Khashab MA, Pickhardt PJ, Kim DH, Rex DK. Colorectal anatomy in adults at CT colonography: normal distribution and the effect of age, gender, and body mass index. Endoscopy 2009;41:674-8.
135. Khalid O, Radaideh S, Cummings OW, O’Brien MJ, Goldblum JR, Rex DK. Reinterpretation of histology of proximal colon polyps called hyperplastic in 2001. World J Gastroenterol 2009;15:3774-7.
136. Rajesh A, Sandrasegaran K, Jennings SG, Maglinte DDT, McHenry L, Lapas JC, Rex DK. Comparison of capsule endoscopy with enteroclysis in the investigation of small bowel disease. Abdominal Imaging 2009;34:459-66.
137. Fatima H, Calley C, Rex DK. Patients’ description of rectal effluent and quality of bowel preparation at colonoscopy. Gastrointest Endosc 2010;71:1244-52.
138. Waye JD, Heigh RI, Fleischer DE, Leighton JA, Gurudu S, Aldrich LB, Li J, Ramrakhiani S, Edmundowicz SA, Early DS, Jonnalagadda S, Bresalier RS, Kessler WR, Rex DK. A retrograde-viewing device improves detection of adenomas in the colon: a prospective efficacy evaluation. Gastrointest Endosc 2010;71:551-6.
139. Cohen LB, Cattau E, Goetsch A, Shah A, Weber J, Rex DK, Kline JM. A randomized, double-blind, phase 3 study of fospropofol disodium for sedation during colonoscopy. J Clin Gastroenterol 2010;44:345-53.
140. Raghavendra M, Rex DK. Patient interest in videorecording of colonoscopy: a survey. World J Gastroenterol 2010;28:458-61.
141. *Kahi CJ, Anderson JC, Waxman I, Kessler WR, Imperiale TF, Li X, Rex DK. High-definition chromocolonoscopy versus high-definition white light colonoscopy for average-risk colorectal cancer screening. Am J Gastroenterol 2010; 105:1301-7.
142. *Raghavendra M, Hewett DG, Rex DK. Differentiating adenomas from hyperplastic colorectal polyps: narrow band imaging can be learned in 20 minutes. Gastrointest Endosc 2010;72:572-6.
143. Unger RZ, Amstutz SP, Seo DH, Huffman M, Rex DK. Willingness to undergo split-dose bowel preparation for colonoscopy and compliance with split-dose instructions. Dig Dis Sci 2010;55:2030-4.
144. Huffman M, Unger RZ, Thatikonda C, Amstutz SP, Rex DK. Split dose bowel preparation for colonoscopy and residual gastric fluid volume: an observational study. Gastrointest Endosc 2010;72:516-20.
145. *Hewett DG, Rex DK. Cap-fitted colonoscopy: a randomized, tandem colonoscopy study of adenoma miss rates. Gastrointest Endosc 2010;72:775-81.
146. Rex DK, DiPalma JA, Rodriguez R, McGowan J, Cleveland MB. A randomized clinical study comparing reduced volume oral sulfate solution to standard 4-liter sulfate free-electrolyte lavage solution as preparation for colonoscopy. Gastrointest Endosc 2010;72:328-36.
147. Hassan C, Pickhardt PJ, Rex DK. Performance improvements of imaging-based screening tests. Best Practice & Research Clinical Gastroenterology 2010;24:493-507.
148. Rex DK, Hewett DG, Raghavendra M, Chalasani N. The impact of videorecording on the quality of colonoscopy performance: a pilot study. Am J Gastroenterol 2010;105:2312-7.
149. Leighton JA, Rex DK. A grading scale to evaluate colon cleansing for the PillCam® COLON capsule: a reliability study. Endoscopy 2011;43:123-7.
150. Groth S, Rex D, Rosch T, Hoepffner N. High cecal intubation rates and minimal need for sedation with a self-propelled colonoscope. Am J Gastroenterol 2011;106:1075-80.
151. Kahi CJ, Hewett DG, Norton DL, Rex DK. Prevalence and variable detection of proximal colon serrated polyps during screening colonoscopy. Clin Gastroenterol Hepatol 2011;9:42-6.
152. Rex DK. Effect of the Centers for Medicare & Medicaid Services policy about deep sedation on use of propofol. Ann Intern Med 2011;154:622-6.