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An Experimental Study on the Impact of Clinical Interruptions on Simulated Trainee Performances of Central Venous Catheterization

Overview
Publisher Biomed Central
Date 2018 Feb 17
PMID 29450006
Citations 4
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Abstract

Background: Interruptions are common in the healthcare setting. This experimental study compares the effects of interruptions on simulated performances of central venous catheterization during a highly versus minimally complex portion of the task.

Methods: Twenty-six residents were assigned to interruptions during tasks that are (1) highly complex: establishing ultrasound-guided venous access (experimental group,  = 15) or (2) minimally complex: skin cleansing (control group,  = 11). Primary outcomes were (a) performance scores at three time points measured with a validated checklist, (b) time spent on the respective tasks, and (c) number of attempts to establish venous access.

Results: Repeated measure analyses of variances of performance scores over time indicated no main effect of time or group. The interaction between time and group was significant: (2, 44) = 4.28,  = 0.02, and partial eta = 0.16, indicating a large effect size. The experimental group scores decreased steadily over time, while the control group scores increased with time. The experimental group required longer to access the vein (148 s; interquartile range (IQR) 60 to 361 vs. 44 s; IQR 27 to 133 s;  = 0.034). Median number of attempts to establish venous access was higher in the experimental group (2, IQR 1-7 vs. 1, IQR 1-2;  = 0.03).

Conclusions: Interruptions during a highly complex task resulted in a consistent decrement in performance scores, longer time required to perform the task, and a higher number of venous access attempts than interruptions during a minimally complex tasks. We recommend avoiding interrupting trainees performing bedside procedures.

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