Document Detail

Transdermal scopolamine for the prevention of postoperative nausea and vomiting: a systematic review and meta-analysis.
MedLine Citation:
PMID:  21118734     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Transdermal scopolamine (TDS) is a potential long-acting prophylactic antiemetic initially developed to prevent motion sickness. TDS is a centrally acting anticholinergic agent that was approved in 2001 by the US Food and Drug Administration for the prevention of postoperative nausea and vomiting (PONV). Although TDS has been reported to be clinically efficacious in the prevention of PONV, several adverse events (AEs), such as sedation, dry mouth, blurred vision, central cholinergic syndrome, and confusion (particularly in elderly patients with mild cognitive impairment), are potential concerns.
OBJECTIVE: The aim of this study was to explore the efficacy and tolerability of TDS in the prevention of PONV in adults.
METHODS: A systematic search of PubMed, EMBASE, and the Cochrane Library for randomized controlled trials in adults that compared the effects of TDS and placebo on postoperative nausea, vomiting, and PONV was conducted in March 2009, and an update was conducted in July 2010. Without any language restrictions, a search with the following terms was performed: postoperative, postoperative, postanesthe*, postanaesthe*, post-anesthe*, post-anaesthe*, anesthesia, anaesthesia, surgery, surgeries, surgical, nausea, vomiting, emesis, retching, scopolamine, and hyoscine. Identified studies were then hand-searched for further relevant literature.
RESULTS: Data from 25 randomized controlled trials were analyzed (N = 3298). In the postanesthesia care unit, TDS was associated with a significantly reduced risk for postoperative nausea compared with placebo (relative risk [RR] = 0.77; 95% CI, 0.61-0.98; P = 0.03). TDS was also associated with a significantly reduced risk for postoperative nausea (RR = 0.59; 95% CI, 0.48-0.73; P < 0.001), postoperative vomiting (RR = 0.68; 95% CI, 0.61-0.76; P < 0.001), and PONV (RR = 0.73; 95% CI, 0.60-0.88; P = 0.001) during the first 24 hours after the start of anesthesia. TDS appeared to be effective compared with placebo in the prevention of postoperative nausea when treatment was initiated the night before (early application) (RR = 0.56; 95% CI, 0.41-0.75; P < 0.001) or on the day of surgery (late application) (RR = 0.61; 95% CI, 0.47-0.79; P < 0.001). TDS was associated with a higher prevalence of visual disturbances at 24 to 48 hours compared with placebo (RR = 3.35; 95% CI, 1.78-6.32). Analyses of confusion and other AEs did not show a significant association with TDS.
CONCLUSIONS: In this systematic review and metaanalysis, TDS was associated with significant reductions in PONV with both early and late patch application during the first 24 hours after the start of anesthesia. TDS was associated with a higher prevalence of visual disturbances at 24 to 48 hours after surgery, but no other AEs, compared with placebo.
Christian C Apfel; Kun Zhang; Elizabeth George; Serena Shi; Leena Jalota; Cyrill Hornuss; Katherine E Fero; Felix Heidrich; Joseph V Pergolizzi; Ozlem S Cakmakkaya; Peter Kranke
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Publication Detail:
Type:  Journal Article; Meta-Analysis; Review    
Journal Detail:
Title:  Clinical therapeutics     Volume:  32     ISSN:  1879-114X     ISO Abbreviation:  Clin Ther     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-12-01     Completed Date:  2011-03-11     Revised Date:  2011-04-04    
Medline Journal Info:
Nlm Unique ID:  7706726     Medline TA:  Clin Ther     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1987-2002     Citation Subset:  IM    
Perioperative Clinical Research Core, Department of Anesthesia and Perioperative Care, University of California at San Francisco, San Francisco, California 94115, USA. or
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MeSH Terms
Administration, Cutaneous
Antiemetics / administration & dosage,  adverse effects,  therapeutic use*
Postoperative Nausea and Vomiting / chemically induced,  prevention & control*
Scopolamine / administration & dosage,  adverse effects,  therapeutic use*
Reg. No./Substance:
0/Antiemetics; 51-34-3/Scopolamine
Erratum In:
Clin Ther. 2010 Dec;32(14):2502

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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