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Thirty preterm cocaine-exposed preterm neonates (mean gestational age 30 wks, mean birth weight = 1212 g, mean intensive care unit duration = 18 days) were randomly assigned to a massage therapy or a control group as soon as they were considered medically stable. Group assignment was based on a random stratification of gestational age, birth weight, intensive care unit duration, and entry weight into the study. The treatment group (N = 15) received massages for three 15-minute periods 3 consecutive hours for a 10-day period. Findings suggested that the massaged infants (1) averaged 28% greater weight gain per day (33 vs 26 g) although the groups did not differ in intake (calories or volume), (2) showed significantly fewer postnatal complications and stress behaviors than did control infants, and (3) demonstrated more mature motor behaviors on the Brazelton examination at the end of the 10-day study period.

Ninety-three preterm infants (M gestational age = 30 wks; M birth weight = 1204 g; M ICU duration = 15 days) were randomly assigned to a massage therapy group or a control group once they were considered medically stable. The treatment group (N = 50) received three daily 15-minute massages for 10 days. The massage therapy infants gained significantly more weight per day (32 vs 29 g) than did the control infants. Treatment and control groups were divided into high and low weight gainers based on the average weight gain for the control group. Seventy percent of the massage therapy infants were classified as high weight gainers whereas only 40% of the control infants were classified as high weight gainers. Discriminant function analyses determining the characteristics that distinguished the high from the low weight gainers suggested that the control infants who, before the study, consumed more calories and spent less time in Intermediate care gained more weight. In contrast, for the massage therapy group, the pattern of greater caloric intake and more days in Intermediate care before the study period along with more obstetric complications differentiated the high from the low weight gainers, suggesting that the infants who had experienced more complications before the study benefitted more from the massage therapy. These variables accurately predicted 78% of the infants who benefitted significantly from the massage therapy. Thus, these variables can be used to suggest infants who would benefit most from future massage therapy programs.

This study evaluates the effects of neonatal behavioral assessments and heelsticks on transcutaneous oxygen tension (TcPO2) in 37 preterm neonates from a neonatal intensive care unit. Two behavioral assessments were evaluated, the Brazelton Neonatal Behavioral Assessment Scale (BNBAS) and the Neurobehavioral Assessment for Preterm Infants (NAPI). TcPO2 during heelsticks was used as a comparison because reliable decreases have typically been noted during heelsticks. Although the heelsticks resulted in significant declines in TcPO2, the behavioral assessments led to only negligible changes in TcPO2. Observed changes during the behavioral assessments occurred in a small number of infants, primarily during the few test procedures administered to the infants outside of their isolettes. Accordingly, it is suggested that time outside the isolette and associated temperature changes may be more critical variables than the assessments per se.