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Comparative Study
Journal Article
Initial experience with double-balloon enteroscopy at a U.S. center.
Gastrointestinal Endoscopy 2008 May
BACKGROUND: Double-balloon enteroscopy (DBE) allows direct visualization and intervention in the entire small intestine. Concerns include long procedure times and a long learning curve after training.
OBJECTIVES: To analyze the initial experience of a single endoscopist when using DBE; assess resource utilization, safety, clinical utility, and the learning curve.
DESIGN: Prospective study.
SETTING: Tertiary-referral center.
PATIENTS: A total of 137 consecutive patients with bleeding or other small-intestine disorders.
MAIN OUTCOME MEASURES: Clinical impact at the time of DBE and changes in the procedure time and extent with experience.
RESULTS: Two hundred DBE procedures were performed without major complications. For 115 oral DBEs, the mean (SD) procedure duration was 101 +/- 35 minutes and length of examined small intestine was 220 +/- 80 cm, with no significant change with experience. For 85 anal DBEs, the mean (SD) procedure duration was 96 +/- 33 minutes, and the length examined was 124 +/- 60 cm; the length examined increased with experience, but the duration did not decrease. The percentage of patients in which a DBE had a helpful clinical impact rose from 58% in the first 50 DBEs, to 86% in the last 50 of 200 DBEs. The total enteroscopy rose from 8% in the first 50 DBEs, to 63% in the last 50 of 200 DBEs.
LIMITATIONS: No follow-up data on outcomes.
CONCLUSIONS: DBEs required significant time and did not always allow for a total enteroscopy. DBEs were safe and helpful in the management of most patients. An experienced endoscopist may perform a safe and useful DBE after limited training, but the development of expertise may require more than 100 to 150 DBE procedures.
OBJECTIVES: To analyze the initial experience of a single endoscopist when using DBE; assess resource utilization, safety, clinical utility, and the learning curve.
DESIGN: Prospective study.
SETTING: Tertiary-referral center.
PATIENTS: A total of 137 consecutive patients with bleeding or other small-intestine disorders.
MAIN OUTCOME MEASURES: Clinical impact at the time of DBE and changes in the procedure time and extent with experience.
RESULTS: Two hundred DBE procedures were performed without major complications. For 115 oral DBEs, the mean (SD) procedure duration was 101 +/- 35 minutes and length of examined small intestine was 220 +/- 80 cm, with no significant change with experience. For 85 anal DBEs, the mean (SD) procedure duration was 96 +/- 33 minutes, and the length examined was 124 +/- 60 cm; the length examined increased with experience, but the duration did not decrease. The percentage of patients in which a DBE had a helpful clinical impact rose from 58% in the first 50 DBEs, to 86% in the last 50 of 200 DBEs. The total enteroscopy rose from 8% in the first 50 DBEs, to 63% in the last 50 of 200 DBEs.
LIMITATIONS: No follow-up data on outcomes.
CONCLUSIONS: DBEs required significant time and did not always allow for a total enteroscopy. DBEs were safe and helpful in the management of most patients. An experienced endoscopist may perform a safe and useful DBE after limited training, but the development of expertise may require more than 100 to 150 DBE procedures.
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