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Evaluation of a diclofenac transdermal patch for the attenuation of venous cannulation pain: a prospective, randomised, double-blind, placebo-controlled study



Evaluation of a diclofenac transdermal patch for the attenuation of venous cannulation pain: a prospective, randomised, double-blind, placebo-controlled study



Anaesthesia 61(4): 360-362



Venous cannulation, although a minor procedure, is often painful. The present study was planned to evaluate the efficacy of a diclofenac transdermal patch placed over the venepuncture site in decreasing the pain of cannulation. Seventy-two adults undergoing elective surgery were included in this randomised, prospective, double-blind, placebo-controlled study. Patients were divided into three equal groups. The Control group had a placebo adhesive patch placed on the both the dorsum of hand and the buttock; the Diclofenac-Buttock group had a placebo patch placed on the dorsum of the hand and a diclofenac transdermal patch on the buttock; the Diclofenac-Hand group had a diclofenac transdermal patch placed on the dorsum of hand and a placebo patch on the buttock. The patches were applied 1 h before cannulation. An 18G cannula was used for all venous cannulations. Pain during cannulation was assessed on a non-graduated 10-cm visual analogue scale. Median [interquartile range] pain scores were 3.0 [2.0-4.0] in the Diclofenac-Hand group, 5.0 [4.3-7.8] in the Diclofenac-Buttock group and 6.5 [4.5-7.0] in the Control group, p < 0.05. The numbers needed to treat were six and two in the Diclofenac-Buttock and Diclofenac-Hand groups, respectively. The application of a diclofenac transdermal patch at the cannulation site appears to be effective in decreasing cannulation pain.

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Accession: 048993393

Download citation: RISBibTeXText

PMID: 16548956

DOI: 10.1111/j.1365-2044.2006.04538.x


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