A total of 64 preterm infants born before 37 weeks of gestation and their mothers were randomly assigned to the experimental and control groups. The intervention used in the experimental group involved an audio recording with repeated clips of the mother reading a children's book, edited to a duration of 13 minutes. The research commenced on the fourth day after the birth of the research subjects, in which the maternal voice recording was played to infants during heel lance procedure once a day for 3 consecutive days. The infants in the control group received general routine care during heel lance procedure. Physiological indicators, including heart rate, respiratory rate, oxygen saturation, and pain response assessed using the Neonatal Infants Pain Scale (NIPS), were recorded 3 minutes before, during, and at the first and 10th minute after heel lance procedure. From the fourth to the sixth day after birth, video recordings of the research process were made and sent to the mother for viewing. On the seventh day after birth, the effectiveness of mother-infant bonding was evaluated using the Mother-Infant Bonding Inventory (MIBI).
Age range
4 Days – 7 Days
Sex
ALL
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Heart rate
Timeframe: Change from Baseline Heart rate at 3 minutes before, during, and at the first and 10th minute after heel lance procedure
Respiratory rate
Timeframe: Change from Baseline Respiratory rate at 3 minutes before, during, and at the first and 10th minute after heel lance procedure
Oxygen Saturation
Timeframe: Change from Baseline Oxygen Saturation at 3 minutes before, during, and at the first and 10th minute after heel lance procedure
Respond of Pain
Timeframe: Change from Baseline Pain at 3 minutes before, during, and at the first and 10th minute after heel lance procedure