80 NR (7–
16
years)
50%
Parallel
group RCT
1:1
Recorded
music
MusiCure (no
music)
Postoperative:
Start at
admission to
PACU for 45
minutes
Pain: CAS
(scale 0–10)
self-report
Pain: Preoperative
and 1h
after PACU
Distress: FAS
(scale 0–10)
self-report
Distress: Preoperative,
in the
PACU and 1h
after PACU
Anxiety: STAI
(scale 6–24)
self-report
Anxiety: Preoperative,
in the
PACU and 1h
after PACU
Morphine
administration:
FLACC (scale
0–10) by nurse
Morphine
administration:
Every 15
minutes during
stay in PACU
and before the
child left the
PACU