A randomized trial of winged Vialon cannulae and metal butterfly needles

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Abstract
The purpose of this parallel randomized study was to evaluate whether subcutaneous infusion sites initiated with winged vialon cannulae would have fewer skin reactions and longer site duration than metal butterfly needles and reduce needlestick injuries to staff. Data were collected on 42 hospice inpatients from the time of insertion of the first needle or cannula to the time of the first replacement of that device. A non-parametric survival plot for time (Kaplan-Meier method) was conducted and the survival time to replacement of the Vialon cannula was found to be longer than the metal butterfly needle. During the study period there were a total of four needlestick injuries to staff from metal butterfly needles. The authors conclude that Vialon cannulae reduce the frequency of site changes and are safer for staff to use because of the reduced risk of needlestick injuries.