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Research Article

Factors Associated with Tolerance to, and Discomfort with, Unsedated Diagnostic Gastroscopy

Pages 1352-1357 | Published online: 08 Jul 2009
 

Abstract

Background: Identification of patients likely to experience high levels of discomfort during unsedated gastroscopy would be useful as these patients could be prospectively targeted for sedation. We prospectively assessed patient and endoscopic variables in subjects attending for endoscopy in order to identify factors associated with patients' experience of the unsedated examination. Methods: We studied 508 patients attending for routine diagnostic gastroscopy. Clinical and endoscopic data were collected and patients completed a two-part questionnaire assessing their anxiety with, and experience of, the procedure. Results: Thirty-nine subjects failed to complete the initial unsedated endoscopy. Failure to tolerate endoscopy was associated with younger age ( P = 0.002) and examination with a standard-bore ( &#83 9.0 mm) endoscope ( P = 0.004). High levels of patient discomfort during the procedure were associated with younger age ( P < 0.001), high levels of pre-endoscopic anxiety ( P < 0.001), high levels of pre-endoscopic discomfort due to throat spray ( P = 0.02) and examination with a standard-bore endoscope ( P < 0.001). Preference for sedation during future examinations was related to female gender ( P = 0.02), young age ( P = 0.02), high levels of apprehension ( P < 0.001), the examining doctor ( P = 0.002) and use of a standard-bore endoscope ( P < 0.001). Conclusions: Discrete clinical characteristics and endoscopic variables are associated with patients' experience of unsedated endoscopy. Further work might result in an algorithm for identifying patients who would benefit from sedation prior to gastroscopy.

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