Journal List > J Korean Acad Nurs > v.49(4) > 1131259

Sivri Bilgen and Balcı: The Effect on Pain of Buzzy® and ShotBlocker® during the Administration of Intramuscular Injections to Children: A Randomized Controlled Trial

Abstract

Purpose

To investigate the effect of Buzzy® and ShotBlocker® on reducing pain induced by intramuscular penicillin injections in children.

Methods

This was a randomized controlled study. A total of 150 Turkish children aged 7~12 years who presented to our pediatric emergency clinic and met the inclusion criteria were recruited. The children were randomly assigned to each group (control=50, Buzzy®=50, ShotBlocker®=50). Data were collected using an information form, the State-Trait Anxiety Inventory for Children, Visual Analog Scale, and Faces Pain Scale-Revised.

Results

The children in the control group had significantly higher pain scores during the penicillin injection than the children in the ShotBlocker® and Buzzy® groups. The children in the Buzzy® group had significantly less pain than the children in both the ShotBlocker® and control groups (p<.001).

Conclusion

Buzzy® was more effective compared with ShotBlocker® in this study.

References

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Figure 1.
ShotBlocker®.
jkan-49-486f1.tif
Figure 2.
Buzzy®.
jkan-49-486f2.tif
Figure 3.
Sample flow and protocol.
jkan-49-486f3.tif
Table 1.
Comparison of Socio-Demographic Characteristics according to Groups (N=150)
Characteristics ShotBlocker® Buzzy® Control Total Test Value p
(n=50)
(n=50)
(n=50)
(n=150)
M±SD M±SD M±SD M±SD
Average age (yr) 8.66±1.77 8.98±1.82 9.12±2.03 8.92±1.87 0.82 .456
Number of penicillin injections 2.78±2.26 2.82±1.85 3.32±2.43 2.97±2.19 2.40†† .301
State-Trait Anxiety Inventory 38.50±5.47 37.74±6.07 40.16±6.24 38.80±5.99 2.17 .118
(before the procedure)

n (%) n (%) n (%) n (%)

Sex
Female 23 (46.0) 25 (50.0) 21 (42.0) 69 (46.0) 0.64§ .725
Male 27 (54.0) 25 (50.0) 29 (58.0) 81 (54.0)

M=Mean; SD=Standard Deviation.

One-way analysis of variance;

†† Kruskal-Wallis test;

§ Pearson chi-square test.

Table 2.
Comparison of the First and Fifth-Minute Visual Analog Scale (VAS) Mean Scores of the Children according to Groups (N=150)
Scale ShotBlocker® (n=50)
Buzzy® (n=50)
Control (n=50)
Test Value p
M±SD M±SD M±SD
VAS (1st min.) 6.36±3.24 3.68±3.05 7.34±3.11 30.06 <.001
VAS (5th min.) 3.38±2.94 1.68±2.28 4.88±3.24 26.45 <.001
Mean Score Difference -2.90±1.59 -2.00±1.67 -2.46±1.69 9.33 .009
Test Value -6.06†† -5.47†† -5.81††
p <.001 <.001 <.001

M=Mean; SD=Standard Deviation.

Kruskal-Wallis test;

†† Wilcoxon signed-ranks test.

Table 3.
Comparison of the First and Fifth-Minute Faces Pain Scale-Revised (FPS-R) Mean Scores of the Children according to Groups (N=150)
Scales ShotBlocker® Buzzy® Control Test Value p
(n=50)
(n=50)
(n=50)
M±SD M±SD M±SD
FPS-R (1st min.) 6.24±3.20 3.64±3.10 7.36±3.09 30.64 <.001
FPS-R (5th min.) 3.24±2.96 1.52±2.23 4.84±3.29 27.17 <.001
Mean Score Difference -2.92±1.48 -2.12±1.73 -2.52±1.71 8.79 .012
Test Value -6.10†† -5.85†† -5.83††
p <.001 <.001 <.001

M=Mean; SD=Standard Deviation.

Kruskal-Wallis test;

†† Wilcoxon signed-ranks test.

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