Objective
The aim was to evaluate the effect of music on preventing delirium after coronary
artery bypass grafting, to analyze vital signs and blood gas parameters, and to determine
risk factors affecting delirium.
Design
A randomized clinical trial.
Setting
A single-center, tertiary hospital.
Participants
In total, 200 patients who underwent coronary artery bypass grafting surgery from
April 2020 to April 2021.
Interventions
A one-hour session of new-age music was administered twice a day postoperatively for
7 days using a headphone. Delirium was assessed using the Confusion Assessment Method
for the Intensive Care Unit before and after each session. Vital signs and blood gas
parameters were compared to evaluate the effect of music. All assessments were conducted
blindly by a different researcher.
Measurements and Main Results
Twelve participants who were delirium-positive were in the control group, and there
were 3 in the case group, which suggested a statistically significant effect of music
in preventing delirium (p = 0.016). The mean age of patients was 64.7 ± 7.9 years
old in the control group and 62.2 ± 7.5 years old in the case group. There was a significant
difference among the control and case groups in terms of the surgery time; surgery
time in the control group was significantly lower than in the case group (242.4 ±
42.3 v 261.6 ± 48.9, respectively; p = 0.03 < 0.05). Blood pressure and heart rate in the
case group were lower, similar to the respiratory rate and venous blood gas parameters;
Blood pressure differences were not statistically significant (p > 0.05);
Conclusion
Relaxation music, including bird, water, and wind, significantly prevents delirium
after coronary artery bypass grafting.
Key Words
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Publication history
Published online: September 08, 2022
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