This form, created by the researchers, contains information on physiological parameters (heart rate, respiratory rate, and oxygen saturation) and cerebral rSO2 values (Provasi et al., 2021; Zimmerman & Barlow, 2012). The information in the Follow-up Form was evaluated just before the intervention (TO), at the 15th minute of the intervention (T1), at the 30th minute of the intervention (T2), and 15 minutes after the intervention (T3). The form was finalized by taking the opinions of 2 nurses and 1 neonatology specialist, who are experts in pediatric nursing. Physiological parameters of the newborn were followed from the Philips IntelliVue MP40 branded neonatal monitor suitable for neonatal use, and cerebral rSO2 was monitored with the INVOS™ 5100C Cerebral/Somatic Oximeter brand NIRS device available in the clinic.

The COMFORT Scale was developed by Ambuel et al. (1992) to determine the comfort and distress of patients in the pediatric intensive care unit. The comfort of the newborn is evaluated through 7 parameters, including muscle tone, calmness/agitation, facial tension, body movements, crying, and respiratory response with YKDS. If the newborn receives mechanical ventilator support, "respiratory response" is scored, and if the newborn is breathing spontaneously, "crying" items are scored. For this reason, the overall scoring of the scale is based on 6 items, and the scores that can be obtained from the scale vary between 6 and 30. A low score from the scale indicates comfort, while an increase in score indicates pain or distress in the newborn (Kahraman et al., 2014; Van Dijk et al., 2009). The Turkish validity and reliability study of YKDS was conducted by Kahraman et al. in 2014 (Kahraman, Başbakal, & Yalaz, 2014).

This form, created by the researchers, contains information on physiological parameters (heart rate, respiratory rate, and oxygen saturation) and cerebral rSO2 values (Provasi et al., 2021; Zimmerman & Barlow, 2012). The information in the Follow-up Form was evaluated just before the intervention (TO), at the 15th minute of the intervention (T1), at the 30th minute of the intervention (T2), and 15 minutes after the intervention (T3). The form was finalized by taking the opinions of 2 nurses and 1 neonatology specialist, who are experts in pediatric nursing. Physiological parameters of the newborn were followed from the Philips IntelliVue MP40 branded neonatal monitor suitable for neonatal use, and cerebral rSO2 was monitored with the INVOS™ 5100C Cerebral/Somatic Oximeter brand NIRS device available in the clinic.

The COMFORT Scale was developed by Ambuel et al. (1992) to determine the comfort and distress of patients in the pediatric intensive care unit. The comfort of the newborn is evaluated through 7 parameters, including muscle tone, calmness/agitation, facial tension, body movements, crying, and respiratory response with YKDS. If the newborn receives mechanical ventilator support, "respiratory response" is scored, and if the newborn is breathing spontaneously, "crying" items are scored. For this reason, the overall scoring of the scale is based on 6 items, and the scores that can be obtained from the scale vary between 6 and 30. A low score from the scale indicates comfort, while an increase in score indicates pain or distress in the newborn (Kahraman et al., 2014; Van Dijk et al., 2009). The Turkish validity and reliability study of YKDS was conducted by Kahraman et al. in 2014 (Kahraman, Başbakal, & Yalaz, 2014).

This form, created by the researchers, contains information on physiological parameters (heart rate, respiratory rate, and oxygen saturation) and cerebral rSO2 values (Provasi et al., 2021; Zimmerman & Barlow, 2012). The information in the Follow-up Form was evaluated just before the intervention (TO), at the 15th minute of the intervention (T1), at the 30th minute of the intervention (T2), and 15 minutes after the intervention (T3). The form was finalized by taking the opinions of 2 nurses and 1 neonatology specialist, who are experts in pediatric nursing. Physiological parameters of the newborn were followed from the Philips IntelliVue MP40 branded neonatal monitor suitable for neonatal use, and cerebral rSO2 was monitored with the INVOS™ 5100C Cerebral/Somatic Oximeter brand NIRS device available in the clinic.