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BMC Surg. 2012;12 Suppl 1:S9. doi: 10.1186/1471-2482-12-S1-S9. Epub 2012 Nov 15.

Difficult colonoscopies in the propofol era.

Author information

1
Department of Surgical and Gastroenterological Sciences, Padova University Hospital, Italy, Via Giustiniani n2, 35126 Padova, Italy. fabrizio.cardin@sanita.padova.it

Abstract

BACKGROUND:

To study the relationship between endoscopic practice and adverse events during colonoscopy under standard deep sedation induced and monitored by an anesthetist.

METHODS:

We investigated the routine activity of an endoscopy center at the Padova University teaching hospital. We considered not only endoscopic and cardiorespiratory complications, but also the need to use high-dose propofol to complete the procedure, and the inability to complete the procedure. Variables relating to the patient's clinical conditions, bowel preparation, the endoscopist's and the anesthetist's experience, and the duration of the procedure were input in the model.

RESULTS:

617 procedures under deep sedation were performed with a 5% rate of adverse events. The average dose of propofol used was 2.6 ± 1.2 mg/kg. In all, 14 endoscopists and 42 anesthetists were involved in the procedures. The logistic regression analysis identified female gender (OR=2.3), having the colonoscopy performed by a less experienced endoscopist (OR=1.9), inadequate bowel preparation (OR=3.2) and a procedure lasting longer than 17.5 minutes (OR=1.6) as the main risk factors for complications. An ASA score of 2 carried a 50% risk reduction (OR=0.5).

DISCUSSION AND CONCLUSIONS:

Our model showed that none of the variables relating to anesthesiological issues influenced which procedures would prove difficult.

PMID:
23173918
PMCID:
PMC3499204
DOI:
10.1186/1471-2482-12-S1-S9
[Indexed for MEDLINE]
Free PMC Article
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