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Meta-Analysis
. 2009 Oct 7;2009(4):CD002192.
doi: 10.1002/14651858.CD002192.pub2.

Premedication for anxiety in adult day surgery

Kevin J Walker  1 , Andrew F Smith
Affiliations
Meta-Analysis

Premedication for anxiety in adult day surgery

Kevin J Walker et al. Cochrane Database Syst Rev. .

Abstract

Background: Since the early 1980s, it has become more and more common to carry out surgical procedures on a day case basis. Many patients are anxious before surgery yet there is sometimes a reluctance to provide sedative medication because it is believed to delay discharge from hospital.This is an updated version of the review first published in 2000 (previous updates 2003; 2006).

Objectives: To assess the effect of anxiolytic premedication on time to discharge in adult patients undergoing day case surgery under general anaesthesia.

Search strategy: We identified trials by computerized searches of the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library, 2009 Issue 1 ); MEDLINE (1980 to January 2009); EMBASE (1980 to January 2009). We also checked the reference lists of trials and review articles and handsearched three main anaesthesia journals.

Selection criteria: We included all identified randomized controlled trials comparing anxiolytic drug(s) with placebo before general anaesthesia in adult day case surgical patients.

Data collection and analysis: We collected data on anaesthetic drugs used; results of psychomotor function tests where these were used to assess residual effect of premedication; and on times from end of anaesthesia to ability to walk unaided or readiness for discharge from hospital. Formal statistical synthesis of individual trials was not performed in view of the variety of drugs studied.

Main results: We included 17 studies. Methodological quality of included studies was poor. Of these 17, only seven studies specifically addressed the discharge question; none found any delay in premedicated patients. Two other studies used clinical criteria to assess fitness for discharge, though times were not given. Again, there was no difference from placebo. Eleven studies used tests of psychomotor function with or without clinical measures as indicators of recovery from anaesthesia. In none of these studies did the premedication appear to delay discharge, although performance on tests of psychomotor function was sometimes still impaired. Three studies showed no impairment in psychomotor function, six showed some impairment which had resolved by three hours or time of discharge and two showed significant impairment.

Authors' conclusions: We found no evidence of a difference in time to discharge from hospital, assessed by clinical criteria, in patients who received anxiolytic premedication. However, in view of the age and variety of anaesthetic techniques used and clinical heterogeneity between studies, inferences for current day case practice should be made with caution.

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Conflict of interest statement

None known.

Figures

1
1
Methodological quality graph: review authors' judgements about each methodological quality item presented as percentages across all included studies.
2
2
Methodological quality summary: review authors' judgements about each methodological quality item for each included study.
See this image and copyright information in PMC

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References

References to studies included in this review

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