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Clinical Trial Summary

This study is a double blind randomized controlled trial. The investigators randomized ASA III and IV patients who underwent cholangiopancreatography. The investigators gave Propofol or Ketofol and compared the outcomes. The primary outcome was security (respiratory depression / hypoventilation).


Clinical Trial Description

Randomization is performed by the nurse responsible for preparing the anesthesia drugs. The nurse randomly removes an envelope from a previously prepared container with as many envelopes as the number of patients calculated for the sample. Each envelope, which will be sealed, contains the branch to which the patient belongs (propofol or ketofol) and instructions for the preparation of the respective drugs. The sample was calculated for a significance level of 5% and a test power of 95%, assuming that, on average, the primary outcome of this study - respiratory depression - is observed in 3% of the population undergoing sedation with ketofol and to 25% of patients undergoing sedation with propofol. The result of the calculation includes 51 patients for each branch of the study (considering the one-tailed hypothesis test). Data collection is expected to take place over 5 months, taking place between October 2016 and March 2017. The study is designed to be blinded to the patient and the anesthesiologist/investigator. The anesthesia nurse, after preparing the drugs according to the instructions on the envelope containing the branch of the study to which the patient belongs, should label each syringe in a non-committal manner. Statistical analysis was performed using the IBM SPSS Statistics 27. It will not be necessary to resort to the monitoring committee, since no method or technique different from the one usually practiced will be applied ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05473949
Study type Interventional
Source Centro Hospitalar Universitário Lisboa Norte
Contact
Status Completed
Phase N/A
Start date October 1, 2016
Completion date March 31, 2017

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