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Aim To examine the effect of the mother's heartbeat sound on physiological parameters and pain intensity after blood sampling in neonates in the intensive care unit. Methods A randomized controlled clinical trial was conducted on 60 neonates admitted to the intensive care unit. They were assigned to intervention and control groups (n = 30 in each group). The intervention group listened to the mother's heartbeat sound, 10 min before up to 10 min after taking arterial blood samples. Pain intensity was measured every 10 min in 3 steps using the neonatal infant pain scale 10 min before the intervention, immediately after and 10 min after the intervention. At the same time, physiologic parameters including oxygen saturation, respiratory rate, heart rate and mean arterial blood pressure were recorded. Data were analyzed using descriptive and inferential statistics using SPSS. Results Listening to the mother's heartbeat sound did not influence on mean arterial pressure in the intervention group. However, it had significant medium to large effects on oxygen saturation and respiratory rate immediately after and 10 min after the intervention. Also, it had a large effect on heart rate immediately after the intervention (P Conclusion The mother's heartbeat sound can be used by nurses as a non-pharmacologic and safe intervention along with routine care in order to reduce suffering and pain in neonates undergoing invasive and painful procedures in the intensive care unit.

Hospitalized neonates usually undergo different painful procedures. This study sought to test the effects of a familiar auditory stimulus on the physiologic responses to pain of venipuncture among neonates in intensive care unit. The study design is quasi-experimental. The randomized clinical trial study was done on 60 full-term neonates admitted to the neonatal intensive care unit between March 20 to June 20, 2014. The neonates were conveniently selected and randomly allocated to the control and the experimental groups. Recorded maternal voice was played for the neonates in the experimental group from 10 minutes before to 10 minutes after venipuncture while the neonates in the control group received no sound therapy intervention. The participants' physiologic parameters were assessed 10 minutes before, during, and after venipuncture. At baseline, the study groups did not differ significantly regarding the intended physiologic parameters (P > .05). During venipuncture, maternal voice was effective in reducing the neonates' heart rate, respiratory rate, and diastolic blood pressure (P

BACKGROUND & OBJECTIVE: Due to devastating effects of pain in neonates, it is very important to ease it though safe and feasible methods. This study was to determine the effect of familiar auditory stimuli on the arterial blood sampling (ABS) induced pain in term neonates . RESEARCH METHOD: This study was done on 30 newborns hospitalized in neonate intensive care unit (NICU) of a hospital in Tehran. Research samples were selected by using convenience sampling and randomly divided into two groups of control and test. In the test group, the recorded mothers' voices were played for the newborns before and after blood sampling procedure. Then, pain measures were recorded 10 minutes before, during and 10 minutes after blood collection based on Neonatal Infant Pain Scale (NIPS); then the pain level changes were reviewed and studied. FINDINGS: The findings showed significant differences between the control and test groups that indicating the effect of mother's voice on reducing the pain of neonates during the ABS (p