Effects of a tripartite intervention on biological stress in preterm infants during heel pricks for newborn screening: A randomized controlled trial.

This prospective randomized trial examined the effects of a tripartite intervention (behavioral state modulation + nonnutritive sucking + tucking) on stress from procedural pain during heel pricks. Blood samples for routine screening were collected by heel pricks 48 h after birth (Stage 1) and at ≥37 weeks' gestation (Stage 2); salivary cortisol levels (SCLs) pre-prick (T0) and 20 min post-prick (T1) assessed stress. Preterm infants (n = 64) sampled by convenience at Level III neonatal care units were randomly assigned to the control condition (usual care) or intervention condition (tripartite intervention). Generalized estimating equations examined differences in salivary cortisol between conditions. After adjusting for effects of gestational age, postmenstrual age, and baseline SCLs, (1) at Stage 1, the change in salivary cortisol from T0 to T1 in preterm infants who received the tripartite intervention was, on average, significantly lower by 0.431 units (log scale) than the change in preterm infants who received the control condition (p < 0.001); (2) in the tripartite intervention condition, the difference between the change in mean SCLs from T0 to T1 at Stages 1 and 2 was significantly lower by 0.287 units (log scale), on average than between the change at Stages 1 and 2 in the control condition (p = 0.026). The provision of a tripartite intervention during heel prick significantly decreased the raise of SCLs compared with infants receiving usual care, suggesting lower stress. Clinicians could easily implement the tripartite intervention for heel-stick support; however, replication is needed before recommending its incorporation into routine heel stick and other stressful procedures.

Development of atraumatic heel-stick procedures by combined treatment with non-nutritive sucking, oral sucrose, and facilitated tucking: a randomised, controlled trial.

BACKGROUND: Preterm infants manifest pain and stress by behavioural agitation and state change. Few studies have explored the effects of combining nonpharmacological interventions, i.e. non-nutritive sucking, oral sucrose, and facilitated tucking, on infants' behaviours across painful procedures. OBJECTIVES: To explore the effects of combined use of three nonpharmacological interventions (non-nutritive sucking, oral sucrose, and facilitated tucking) on infants' pain- and stress-related behaviours during four assessment phases: baseline, intervention, heel stick, and recovery. DESIGN: Prospective, randomised controlled trial. SETTING: Level III neonatal intensive care unit in Taipei. METHOD: A convenience sample of 110 infants (gestational age 27-37 weeks) needing heel sticks was randomly assigned to five combinations of nonpharmacological treatments: (1) routine care, (2) non-nutritive sucking+facilitated tucking, (3) oral sucrose+facilitated tucking, (4) non-nutritive sucking+oral sucrose, and (5) non-nutritive sucking+oral sucrose+facilitated tucking. Outcomes were infants' withdrawal or stress (grimace, limb and trunk extension or squirming) and approach or self-soothing (sucking, sucking search, or mouthing; hand holding or grasping; and hand to mouth, face) behaviours. RESULTS: The frequency of infants' withdrawal behaviours decreased significantly when they received combinations of nonpharmacological interventions before heel stick. Specifically, grimace frequency decreased by 32.2%, 30.6%, 19.7%, and 13.8% in infants receiving oral sucrose+non-nutritive sucking+facilitated tucking, non-nutritive sucking+oral sucrose, oral sucrose+facilitated tucking, and non-nutritive sucking+facilitated tucking, respectively, compared to those receiving routine care across assessment phases. Furthermore, infants' frequency of limb and trunk extension or squirming decreased by 24.0% when they received non-nutritive sucking+oral sucrose+facilitated tucking compared to those receiving routine care. Infants' frequency of approach behaviours did not change significantly across all phases when they received non-nutritive sucking+oral sucrose+facilitated tucking, non-nutritive sucking+oral sucrose, and oral sucrose+facilitated tucking compared to those receiving routine care. CONCLUSIONS: The combined use of nonpharmacological interventions (non-nutritive sucking+oral sucrose+facilitated tucking) effectively reduced the frequencies of infants' withdrawal behaviours, i.e. grimace and limb and trunk extension or squirming. Our results provide evidence supporting clinicians' incorporation of the combined use of facilitated tucking, oral sucrose, and non-nutritive sucking into clinical practice during painful procedures. Heel-stick procedures can be atraumatic when conducted while infants are stable and quiet, appropriately positioned, and stabilised and by offering facilitated tucking, oral sucrose, and non-nutritive sucking before gently sticking the heel and squeezing blood.