Effect of cryotherapy on pain management at the puncture site of arteriovenous fistula among children undergoing hemodialysis.

There was no separate control or placebo group, so the children were compared with themselves on different days. The intervention included olive oil before ice massage, so the contribution of cryotherapy alone cannot be separated from the olive oil or the routine puncture care. The authors note that children's participation and enthusiasm may have distracted them from pain, which could lower scores without proving pain relief. Participants were recruited by convenience from two pediatric dialysis centers, so the results may not apply to other settings. The design was non-randomised, and the same study team collected the pre and post assessments. The paper reports a 0.88 point mean reduction on a 0 to 10 self-report scale, but it does not describe whether that difference is clinically meaningful for an individual child. The planned sample size assumed a 20% dropout rate, but the supplied text does not report how many children dropped out after recruitment. Some behaviors, such as physical resistance and use of restraint, did not occur, so the study cannot show effects on those behaviors.

No funding or conflict of interest statement is provided in the supplied text.

Do not conclude that ice massage alone reliably reduces dialysis fistula puncture pain. The study had no control group, used olive oil before the ice, and the authors warn that distraction and participation could explain the lower scores.