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1.  Immediate Unprepped Hydroflush Colonoscopy for Severe Lower GI Bleeding: A Feasibility Study 
Gastrointestinal endoscopy  2012;76(2):367-373.
Background
Urgent colonoscopy is not always the preferred initial intervention in severe lower GI bleeding due to the need for a large volume of oral bowel preparation, the time required for administering the preparation, and concern regarding adequate visualization.
Objective
To evaluate feasibility, safety, and outcomes of immediate unprepped hydroflush colonoscopy for severe lower gastrointestinal bleeding.
Design
Prospective feasibility study of immediate colonoscopy after tap-water enema without oral bowel preparation, aided by water jet pumps and mechanical suction devices in patients admitted to the intensive care unit with a primary diagnosis of severe lower gastrointestinal bleeding
Setting
Tertiary referral center
Main outcome measurements
Primary outcome measurement was the percentage of colonoscopies where the preparation permitted satisfactory evaluation of the entire length of the colon suspected to contain the source of bleeding. Secondary outcome measurements were visualization of a definite source of bleeding, length of hospital and ICU stays, re-bleeding rates, and transfusion requirements.
Results
Thirteen procedures were performed in 12 patients. Complete colonoscopy to the cecum was performed in 9/13 patients (69.2 %). However, endoscopic visualization was felt to be adequate to definitively or presumptively identify the source of bleeding in all procedures, with no colonoscopy repeated due to inadequate preparation. A definite source of bleeding was identified in 5/13 procedures (38.5%). Median length of ICU stay was 1.5 days and hospital stay was 4.3 days. Recurrent bleeding during the same hospitalization, requiring repeat endoscopy, surgery or angiotherapy was seen in 3/12 patients (25%).
Limitations
Uncontrolled feasibility study of selected patients.
Conclusion
Immediate unprepped hydroflush colonoscopy in patients with severe lower GI bleeding is feasible with the hydroflush technique.
doi:10.1016/j.gie.2012.03.1391
PMCID: PMC4121432  PMID: 22658390
2.  A Randomized Trial of Rectal Indomethacin to Prevent Post-ERCP Pancreatitis 
The New England Journal of Medicine  2012;366(15):1414-1422.
Background
Preliminary research suggests that rectally administered nonsteroidal antiinflammatory drugs may reduce the incidence of pancreatitis after endoscopic retrograde cholangiopancreatography (ERCP).
Methods
In this multicenter, randomized, placebo-controlled, double-blind clinical trial, we assigned patients at elevated risk for post-ERCP pancreatitis to receive a single dose of rectal indomethacin or placebo immediately after ERCP. Patients were determined to be at high risk on the basis of validated patient- and procedure-related risk factors. The primary outcome was post-ERCP pancreatitis, which was defined as new upper abdominal pain, an elevation in pancreatic enzymes to at least three times the upper limit of the normal range 24 hours after the procedure, and hospitalization for at least 2 nights.
Results
A total of 602 patients were enrolled and completed follow-up. The majority of patients (82%) had a clinical suspicion of sphincter of Oddi dysfunction. Post-ERCP pancreatitis developed in 27 of 295 patients (9.2%) in the indomethacin group and in 52 of 307 patients (16.9%) in the placebo group (P = 0.005). Moderate-to-severe pancreatitis developed in 13 patients (4.4%) in the indomethacin group and in 27 patients (8.8%) in the placebo group (P = 0.03).
Conclusions
Among patients at high risk for post-ERCP pancreatitis, rectal indomethacin significantly reduced the incidence of the condition. (Funded by the National Institutes of Health; ClinicalTrials.gov number, NCT00820612.)
doi:10.1056/NEJMoa1111103
PMCID: PMC3339271  PMID: 22494121

Results 1-2 (2)