Efficacy of swaddling and heel warming on pain response to heel stick in neonates: a randomised control trial

NON-pharmacological Approach Less Invasive Surfactant Administration (NONA-LISA) trial: protocol for a randomised controlled trial

INTRODUCTION

Using pre-procedure analgesia with the risk of apnoea may complicate the Less Invasive Surfactant Administration (LISA) procedure or reduce the effect of LISA.

METHODS

The NONA-LISA trial (ClinicalTrials.gov, NCT05609877) is a multicentre, blinded, randomised controlled trial aiming at including 324 infants born before 30 gestational weeks, meeting the criteria for surfactant treatment by LISA. Infants will be randomised to LISA after administration of fentanyl 0.5-1 mcg/kg intravenously (fentanyl group) or isotonic saline solution intravenously (saline group). All infants will receive standardised non-pharmacological comfort care before and during the LISA procedure. Additional analgesics will be provided at the clinician's discretion. The primary outcome is the need for invasive ventilation, meaning mechanical or manual ventilation via an endotracheal tube, for at least 30 min (cumulated) within 24 h of the procedure. Secondary outcomes include the modified COMFORTneo score during the procedure, bronchopulmonary dysplasia at 36 weeks, and mortality at 36 weeks.

DISCUSSION

The NONA-LISA trial has the potential to provide evidence for a standardised approach to relief from discomfort in preterm infants during LISA and to reduce invasive ventilation. The results may affect future clinical practice.

IMPACT

Pre-procedure analgesia is associated with apnoea and may complicate procedures that rely on regular spontaneous breathing, such as Less Invasive Surfactant Administration (LISA). This randomised controlled trial addresses the effect of analgesic premedication in LISA by comparing fentanyl with a placebo (isotonic saline) in infants undergoing the LISA procedure. All infants will receive standardised non-pharmacological comfort. The NONA-LISA trial has the potential to provide evidence for a standardised approach to relief from discomfort or pain in preterm infants during LISA and to reduce invasive ventilation. The results may affect future clinical practice regarding analgesic treatment associated with the LISA procedure.

The effect of the swaddling method on stress levels in newborns administered nasal CPAP

BACKGROUND

This study aims to investigate the effects of the swaddling method on the stress levels in newborns receiving nasal continuous positive airway pressure (nCPAP).

METHODS

The study was conducted between 1 June 2022 and 1 October 2022 with 40 newborns who underwent nCPAP in the second-level Neonatal Intensive Care Unit (NICU) of a city hospital in the Central Anatolia Region of Turkey. Data were collected using a descriptive form, including the characteristics of newborns, a patient follow-up chart, and the Newborn Stress Scale (NSS). The descriptive form, the patient follow-up chart, and the NSS were completed by the researcher 30 min after the nCPAP was started and the first saliva sample was taken. The patient follow-up chart and NSS were completed 30 min after applying the swaddling method and the second saliva sample was collected. The data were analyzed using IBM SPSS Statistics 25.0 package software and presented with number, percentage, mean, standard deviation, min-max, and t-test.

RESULTS

The study found that the mean score of the NSS after the intervention (3.52 ± 2.57) was lower than that before the intervention (10.02 ± 2.05) (p < 0.05). The mean saliva cortisol levels of the newborns after the intervention (4.99 ± 1.89) were lower than before the intervention (5.51 ± 1.65) (p < 0.05). The mean heart (135.50 ± 14.15) and respiratory rates (68.07 ± 10.16) of the newborns after the intervention were lower than those before the intervention (140.82 ± 18.11; 72.95 ± 9.06, respectively) (p < 0.05). There was no difference between the mean oxygen saturation of newborns before and after the intervention (p > 0.05).

CONCLUSIONS

The study showed that the swaddling method played a role in reducing the stress levels in newborns who underwent nCPAP. It is recommended that randomized controlled trials examining the effect of swaddling on the stress levels of newborns who underwent nCPAP be conducted.

Indications, Measurements, and Complications of Ten Essential Neonatal Procedures

About 10% of newborns require some degree of assistance to begin their breathing, and 1% necessitates extensive resuscitation. Sick neonates are exposed to a number of invasive life-saving procedures as part of their management, either for investigation or for treatment. In order to support the neonates with the maximum possible benefits and reduce iatrogenic morbidity, health-care providers performing these procedures must be familiar with their indications, measurements, and potential complications. Hence, the aim of this review is to summarise ten of the main neonatal intensive care procedures with highlighting of their indications, measurements, and complications. They include the umbilical venous and arterial catheterizations and the intraosseous line which represent the principal postnatal emergency vascular accesses; the peripherally inserted central catheter for long-term venous access; the endotracheal tube and laryngeal mask airway for airway control and ventilation; chest tube for drainage of air and fluid from the thorax; and the nasogastric/orogastric tube for enteral feeding. Furthermore, lumber puncture and heel stick were included in this review as very important and frequently performed diagnostic procedures in the neonatal intensive care unit.

Non-pharmacological management of infant and young child procedural pain

BACKGROUND

Despite evidence of the long-term implications of unrelieved pain during infancy, it is evident that infant pain is still under-managed and unmanaged. Inadequately managed pain in infancy, a period of exponential development, can have implications across the lifespan. Therefore, a comprehensive and systematic review of pain management strategies is integral to appropriate infant pain management. This is an update of a previously published review update in the Cochrane Database of Systematic Reviews (2015, Issue 12) of the same title.

OBJECTIVES

To assess the efficacy and adverse events of non-pharmacological interventions for infant and child (aged up to three years) acute pain, excluding kangaroo care, sucrose, breastfeeding/breast milk, and music.

SEARCH METHODS

For this update, we searched CENTRAL, MEDLINE-Ovid platform, EMBASE-OVID platform, PsycINFO-OVID platform, CINAHL-EBSCO platform and trial registration websites (ClinicalTrials.gov; International Clinical Trials Registry Platform) (March 2015 to October 2020). An update search was completed in July 2022, but studies identified at this point were added to 'Awaiting classification' for a future update.  We also searched reference lists and contacted researchers via electronic list-serves.  We incorporated 76 new studies into the review.  SELECTION CRITERIA: Participants included infants from birth to three years in randomised controlled trials (RCTs) or cross-over RCTs that had a no-treatment control comparison. Studies were eligible for inclusion in the analysis if they compared a non-pharmacological pain management strategy to a no-treatment control group (15 different strategies). In addition, we also analysed studies when the unique effect of adding a non-pharmacological pain management strategy onto another pain management strategy could be assessed (i.e. additive effects on a sweet solution, non-nutritive sucking, or swaddling) (three strategies). The eligible control groups for these additive studies were sweet solution only, non-nutritive sucking only, or swaddling only, respectively. Finally, we qualitatively described six interventions that met the eligibility criteria for inclusion in the review, but not in the analysis.  DATA COLLECTION AND ANALYSIS: The outcomes assessed in the review were pain response (reactivity and regulation) and adverse events. The level of certainty in the evidence and risk of bias were based on the Cochrane risk of bias tool and the GRADE approach. We analysed the standardised mean difference (SMD) using the generic inverse variance method to determine effect sizes.  MAIN RESULTS: We included total of 138 studies (11,058 participants), which includes an additional 76 new studies for this update. Of these 138 studies, we analysed 115 (9048 participants) and described 23 (2010 participants) qualitatively. We described qualitatively studies that could not be meta-analysed due to being the only studies in their category or statistical reporting issues. We report the results of the 138 included studies here. An SMD effect size of 0.2 represents a small effect, 0.5 a moderate effect, and 0.8 a large effect. The thresholds for the I2 interpretation were established as follows: not important (0% to 40%); moderate heterogeneity (30% to 60%); substantial heterogeneity (50% to 90%); considerable heterogeneity (75% to 100%). The most commonly studied acute procedures were heel sticks (63 studies) and needlestick procedures for the purposes of vaccines/vitamins (35 studies). We judged most studies to have high risk of bias (103 out of 138), with the most common methodological concerns relating to blinding of personnel and outcome assessors. Pain responses were examined during two separate pain phases: pain reactivity (within the first 30 seconds after the acutely painful stimulus) and immediate pain regulation (after the first 30 seconds following the acutely painful stimulus). We report below the strategies with the strongest evidence base for each age group. In preterm born neonates, non-nutritive sucking may reduce pain reactivity (SMD -0.57, 95% confidence interval (CI) -1.03 to -0.11, moderate effect; I2 = 93%, considerable heterogeneity) and improve immediate pain regulation (SMD -0.61, 95% CI -0.95 to -0.27, moderate effect; I2 = 81%, considerable heterogeneity), based on very low-certainty evidence. Facilitated tucking may also reduce pain reactivity (SMD -1.01, 95% CI -1.44 to -0.58, large effect; I2 = 93%, considerable heterogeneity) and improve immediate pain regulation (SMD -0.59, 95% CI -0.92 to -0.26, moderate effect; I2 = 87%, considerable heterogeneity); however, this is also based on very low-certainty evidence. While swaddling likely does not reduce pain reactivity in preterm neonates (SMD -0.60, 95% CI -1.23 to 0.04, no effect; I2 = 91%, considerable heterogeneity), it has been shown to possibly improve immediate pain regulation (SMD -1.21, 95% CI -2.05 to -0.38, large effect; I2 = 89%, considerable heterogeneity), based on very low-certainty evidence. In full-term born neonates, non-nutritive sucking may reduce pain reactivity (SMD -1.13, 95% CI -1.57 to -0.68, large effect; I2 = 82%, considerable heterogeneity) and improve immediate pain regulation (SMD -1.49, 95% CI -2.20 to -0.78, large effect; I2 = 92%, considerable heterogeneity), based on very low-certainty evidence.  In full-term born older infants, structured parent involvement was the intervention most studied. Results showed that this intervention has little to no effect in reducing pain reactivity (SMD -0.18, 95% CI -0.40 to 0.03, no effect; I2 = 46%, moderate heterogeneity) or improving immediate pain regulation (SMD -0.09, 95% CI -0.40 to 0.21, no effect; I2 = 74%, substantial heterogeneity), based on low- to moderate-certainty evidence. Of these five interventions most studied, only two studies observed adverse events, specifically vomiting (one preterm neonate) and desaturation (one full-term neonate hospitalised in the NICU) following the non-nutritive sucking intervention. The presence of considerable heterogeneity limited our confidence in the findings for certain analyses, as did the preponderance of evidence of very low to low certainty based on GRADE judgements.

AUTHORS' CONCLUSIONS

Overall, non-nutritive sucking, facilitated tucking, and swaddling may reduce pain behaviours in preterm born neonates. Non-nutritive sucking may also reduce pain behaviours in full-term neonates. No interventions based on a substantial body of evidence showed promise in reducing pain behaviours in older infants. Most analyses were based on very low- or low-certainty grades of evidence and none were based on high-certainty evidence. Therefore, the lack of confidence in the evidence would require further research before we could draw a definitive conclusion.

The effect of swaddling method applied to preterm infants during the aspiration procedure on pain

PURPOSE

The study was carried out to determine the effect of the swaddling method on pain in preterm infants (between 27 and 36 weeks) hospitalized in the Neonatal Intensive Care Unit during the aspiration procedure. Preterm infants were recruited by convenience sampling from level III neonatal intensive care units in a city in Turkey.

METHOD

The study was conducted in a randomized controlled trial manner. The study consisted of preterm infants (n = 70) receiving care or treatment at a neonatal intensive care unit. While swaddling was applied to the infants in the experimental group before the aspiration process. The pain was assessed before, during, and after the nasal aspiration using the Premature Infant Pain Profile.

RESULTS

No significant difference was found in terms of pre-procedural pain scores whereas a statistically significant difference was detected in terms of pain scores during and after the procedure between the groups.

CONCLUSION

It was determined in the study that the swaddling method reduced the pain of the preterm infants during the aspiration procedure.

IMPLICATIONS FOR PRACTICE

This study emphasized that swaddling had pain-reducing during the aspiration procedure in the neonatal intensive care unit in preterm infants. It is recommended that future studies be conducted using different invasive procedures in preterm infants born earlier.

The effect of three different methods applied during peripheral vascular access in prematures on pain and comfort levels

PURPOSE

This research was carried out to determine the influence of kangaroo care, fetal position, and swaddling on pain and comfort levels in preterm infants during peripheral vascular access.

DESIGN AND METHODS

The study was conducted as a randomized experimental study with a control group. It included 148 premature infants (kangaroo group = 37, swaddling group = 37, fetal position = 37, control group = 37) of 32-37 weeks of age who had peripheral vascular access in the NICU of a state hospital in eastern Turkey between December 2019 and June 2020. While the infants in the experimental group received kangaroo care, fetal position, and swaddling procedures during and after peripheral vascular access, the infants in the control group received conventional peripheral vascular access without extra intervention. "Newborn Infant Pain Scale (NIPS)" and "Premature Infant Comfort Scale (PICS)" were used to collect data. Data were analyzed using percentile, chi-square and ANOVA tests.

RESULTS

Further analysis revealed that the fetal position was the most beneficial intervention for reducing NIPS scores and boosting PICS scores during and after peripheral vascular access in the experimental groups, followed by kangaroo care and lastly swaddling.

CONCLUSION

It was discovered that kangaroo care, fetal position, and swaddling were useful in lowering discomfort and boosting comfort levels in premature infants during and after peripheral vascular access.

PRACTICE IMPLICATIONS

Kangaroo care, fetal position and swaddling methods can be used in clinical practice in order to reduce the pain level and increase the comfort level during and after peripheral vascular access in prematures.

Non-pharmaceutical intervention and pain management situation for neonatal analgesia

Neonatal pain management is an important issue which should have great attention. More and more researches have proved that neonates can feel pain when undergoes painful procedures such as vaccination, heel stick, and so on, and it will result in short-term and long-term outcomes. So it is very important to manage neonatal pain. This article summarized some non-pharmaceutical interventions, including sucrose or glucose, non-nutritional sucking (NNS), breastfeeding, facilitated tucking (FT), kangaroo mother care (KMC), swaddling, heel warming, sensorial saturation (SS), and music therapy, which showed obvious effects for neonatal pain. In addition, this article summarized the progress of neonatal pain intervention in various countries and showed that many countries have not paid enough attention to this problem, while some countries have carried out promotion programs for neonatal pain management which give some clinical enlightenment to our country that we need to pay more attention to this problem.

A Randomized Controlled Trial: The Effect of Own Mother's Breast Milk Odor and Another Mother's Breast Milk Odor on Pain Level of Newborn Infants

Objective: Our research was conducted empirically to determine whether another mother's breast milk could be used to reduce the pain of newborns who were not able to access their own mother's milk for any reason. Materials and Methods: The sample group of the research included 90 newborns [smell of own mother's milk (30), smell of another mother's milk (30), and the control group (30)] hospitalized in the unit. A neonatal information form was used as the data collection tool, the Neonatal Pain, Agitation, and Sedation Scale (N-PASS) was used to assess the newborn's pain, and an evaluation form prepared by the researcher was used to record the findings. Results: The group which was exposed to their own mother's milk had a significantly lower N-PASS mean score compared to other groups and the group which was exposed to another mother's milk was observed to have a significantly lower N-PASS mean score compared to the control group (p < 0.05). While the median values for the total time spent crying of the "own mother's milk" group and the "another mother's milk" group were similar; the total time spent crying of the control group had a significantly higher median value. Conclusion: Our research determined that, while the most effective method for reducing pain in newborns was the smell of their own mother's breast milk, for newborns who were not able to access their own mother's breast milk, the smell of breast milk from a different mother could also be used.

Effects of three different methods used during heel lance procedures on pain level in term neonates

AIM

This study aims to experimentally determine effects of three different methods (swaddling; swaddling and holding; swaddling, holding and breastfeeding) used during heel lancing on pain levels in healthy term neonates.

METHODS

This study was a prospective, randomized controlled trial. The sample of newborns (n = 160) were allocated to the groups (group 1, control; group 2, swaddling; group 3, swaddling and holding; group 4, swaddling, holding and breastfeeding) by blocked randomization. The study data were obtained using an information form, and the Neonatal Infant Pain Scale (NIPS).

RESULTS

The procedural pain scores of group 4 were lower than group 1, group 2 and group 3. Both the total crying time and the first calming time of the groups swaddling, holding and breastfeeding, were shorter than the swaddling, swaddling and holding and the control group.

CONCLUSIONS

As a result, all the three methods are effective in reducing the pain felt during heel lancing in the newborn. However, swaddling, holding and breastfeeding is more effective than the other methods.

Efficacy of Sucrose in Reducing Pain during Immunization among 10- to 18-Month-Old Infants and Young Children: A Randomized Controlled Trial

PURPOSE

Sucrose is recommended to reduce pain associated with vaccination in neonates. However, research results concerning its effectiveness in infants and young children are inconclusive. This study aims to determine the efficacy of sucrose administration in reducing pain during immunization in 10- to 18-month-old infants and young children as assessed by behavioral pain parameters, crying time, and saliva substance (P) concentration.

DESIGN AND METHODS

This was a double-blind, randomized controlled trial and included healthy infants and young children undergoing their 10- to 18-month immunization. Behavioral pain outcome was measured during, and shortly after the last injection. The infant's pain was also measured by a salivary test using substance (P), and videotaping of crying time.

RESULTS

The study results indicate that, compared with a placebo group, the sucrose group had significantly less pain post-immunization (F (1,129) = 1.72, p = 0.001). Moreover, substance (P) was lower in the intervention group post-immunization, and it could be considered a good predictor of pain reduction associated with immunization.

CONCLUSIONS

Sucrose administration during immunization injection helps in reducing pain, which is one of the most critical factors affecting compliance with the immunization schedule. Substance (P) measurement can be used as a predictor of immunization pain level in 10- to 18-month-old infants and young children.

PRACTICE IMPLICATIONS

Sucrose is an effective method to reduce needle pain during immunization; therefore, healthcare providers should administer sucrose as a pain relief intervention in the immunization clinical setting.

Effects of breastfeeding and heel warming on pain levels during heel stick in neonates

AIM

To determine the effects of two different methods, breastfeeding and heel warming, during heel stick procedures on pain levels in healthy term neonates.

METHODS

This study was a prospective, randomized controlled trial. The sample of the study consisted of 150 healthy newborns who matched the case selection criteria and were brought to the nursery for the heel stick procedure. Fifty neonates were randomly assigned to each group: breastfeeding (n = 50), heel warming (n = 50), and control (n = 50), using computer-based randomization. The study data were obtained using an Information Form and the Neonatal Infant Pain Scale (NIPS).

RESULTS

The pre-procedural pain scores of the breastfeeding group (mean 4.44 SD 1.21 seconds) were lower than in the heel warming (mean 6.10 SD 1.07 seconds) and the control group (mean 6.42 SD 0.91 seconds) (P < 0.01). Both the total crying time and the first calming time of the breastfeeding group were shorter than the heel warming and control group. The first calming time of the heel warming group was shorter than in the control group.

CONCLUSIONS

Both breastfeeding and heel warming are effective in reducing the calming time during heel stick procedures. However, breastfeeding is more effective than heel warming in reducing pain during heel stick and should be preferred as the first choice.

Neonatal Pain: Perceptions and Current Practice

Neonates may experience more than 300 painful procedures throughout their hospitalizations. Prior to 1980, there was a longstanding misconception that neonates do not experience pain. Current studies demonstrate that not only do neonates experience pain but also, due to their immature nervous systems, they are hypersensitive to painful stimuli. Poorly treated pain may lead to negative long-term consequences. Proper assessment of neonate pain is vital. The use of nonpharmacologic treatments may be beneficial in alleviating neonate pain. Pharmacologic treatments in the neonate have been well established. Pharmacologic and nonpharmacologic interventions can be used in conjunction to increase the efficacy of analgesia.

Variation in Neonate Swaddling Techniques

BACKGROUND

It is common practice for healthcare practitioners to swaddle infants in newborn nursery and neonatal intensive care unit settings. Despite the widespread use of this practice, the American Academy of Pediatrics neither bans nor recommends swaddling. To date, there has been no standard protocol developed for either healthcare professionals or parents to establish optimal swaddling techniques in terms of infant arm positioning, infant leg positioning, and tightness of wrap.

PURPOSE

To evaluate the variability in swaddling techniques used for infants in the newborn nursery and neonatal intensive care unit.

METHODS

Across 2 pediatric hospitals, the swaddling positioning of each open-crib infant in the newborn nursery and neonatal intensive care unit was examined. For each infant, the following data were collected: gender, left and right arm position, left and right leg position, and tightness of wrap.

RESULTS

In total, 132 swaddle observations were recorded. There was significant variability in swaddling positioning of arms and legs. The most common combination of arm/leg positioning was "mixed arm positioning" and "both legs flexed" (25.0% of all observations). In 9.1% of cases, tightness of wrap around chest was "tight," and in 30.3% of cases, tightness of wrap around legs was "tight."

IMPLICATIONS FOR PRACTICE

There was a large variability in swaddling positioning of both arms and legs. For such a widespread practice, the lack of medical guidelines results in inconsistent, and potentially harmful, positioning. Parents and healthcare professionals would benefit from specific, research-driven guidelines regarding proper swaddling techniques.

IMPLICATIONS FOR RESEARCH

Different variations on swaddling should be evaluated for consideration of best practice swaddling.

Effects of combined oral sucrose and nonnutritive sucking (NNS) on procedural pain of NICU newborns, 2001 to 2016: A PRISMA-compliant systematic review and meta-analysis

BACKGROUND

Both oral sucrose (OS) and nonnutritive sucking (NNS) are effective nonpharmacological methods to alleviate procedures pain in neonatal intensive care unit (NICU) newborns when they were used alone, but the combined effect of OS+NNS remains controversial. So, we conducted this study to evaluate the efficiency of NNS combined with oral sucrose on pain relief in NICU newborns undergoing painful procedures.

METHODS

We searched PubMed, Ovid (Medline), Embase (Medline), Cochrane Central Library, and other resources such as Google Scholar, bibliographies of included literatures for all available articles. Two reviewers screened literatures and extracted data independently. The fixed effects model was used to pool the results using Reviewer Manager (RevMan) 5.3. As each study included in our meta-analysis had been approved by Ethics Committee or institutional review board, thus our study did not need ethical approval.

RESULTS

Seven randomized controlled trials, including 599 participants, were contained in our meta-analysis. The combination of oral sucrose and NNS is associated with reduced pain scores (mean difference [MD], -0.52; 95% confidence interval [CI], -0.68 to -0.36); shortened crying time (MD,-0.92; 95% CI, -1.39 to -0.44); but the 2 groups did not differ significantly in reducing bradycardia (MD, 0.73; 95% CI, 0.32-1.68), tachycardia (MD, 0.65; 95% CI, 0.38-1.10), or desaturations (MD, 0.73; 95% CI, 0.32-1.68).

CONCLUSION

The pooled evidence indicates that the combination measures may serve as an evidence-based guideline for pain relief among patients having minor pain. Besides, it also indicates that OS combined with NNS can be an alternative for better prevention and management of procedure pain in NICU newborns. Nevertheless, the results may be limited due to incomplete data, and thus, more randomized controlled trials or well-designed studies are required to determine the effects of OS+NNS in the future.

Effect of Vibration on Pain Response to Heel Lance: A Pilot Randomized Control Trial

BACKGROUND

Applied mechanical vibration in pediatric and adult populations has been shown to be an effective analgesic for acute and chronic pain, including needle pain. Studies among the neonatal population are lacking. According to the Gate Control Theory, it is expected that applied mechanical vibration will have a summative effect with standard nonpharmacologic pain control strategies, reducing behavioral and physiologic pain responses to heel lancing.

PURPOSE

To determine the safety and efficacy of mechanical vibration for relief of heel lance pain among neonates.

METHODS

In this parallel design randomized controlled trial, eligible enrolled term or term-corrected neonates (n = 56) in a level IV neonatal intensive care unit were randomized to receive either sucrose and swaddling or sucrose, swaddling, and vibration for heel lance analgesia. Vibration was applied using a handheld battery-powered vibrator (Norco MiniVibrator, Hz = 92) to the lateral aspect of the lower leg along the sural dermatome throughout the heel lance procedure. Neonatal Pain, Agitation, and Sedation Scale (N-PASS) scores, heart rate, and oxygen saturations were collected at defined intervals surrounding heel lancing.

RESULTS

Infants in the vibration group (n = 30) had significantly lower N-PASS scores and more stable heart rates during heel stick (P = .006, P = .037) and 2 minutes after heel lance (P = .002, P = .016) than those in the nonvibration group. There were no adverse behavioral or physiologic responses to applied vibration in the sample.

IMPLICATIONS FOR PRACTICE AND RESEARCH

Applied mechanical vibration is a safe and effective method for managing heel lance pain. This pilot study suggests that mechanical vibration warrants further exploration as a nonpharmacologic pain management tool among the neonatal population.

Analgesia, nil or placebo to babies, in trials that test new analgesic treatments for procedural pain

This review assessed how often neonates in control groups experienced unnecessary pain during clinical trials involving procedural pain. We retrieved 45 studies in the 30 months up to June 2015 and found that in 29 (64%) the control babies received either placebos or no treatment. Placebos were used in 15/25 (60%) studies involving heel pricks and in 6/8 (75%) involving venepuncture.

CONCLUSION

Despite international guidelines, neonates included in control groups during painful procedures do not receive analgesia in the majority of cases. Several historical reasons can explain this, but in the light of present knowledge, this should not continue. Ethical committees are thereof invited since now to not permit clinical trials that do not explicitly rule out pain during treatments and journals are invited to not publish them.

Combined non-pharmacological interventions for newborn pain relief in two degrees of pain procedures: A randomized clinical trial

BACKGROUND

Non-pharmacological interventions are effective neonatal pain reduction strategies. We aimed to study the effects of non-nutritive sucking (NNS) and swaddling on infants' behavioural and physiological parameters during shallow or deep heel stick procedures.

METHOD

In this prospective, multi-centred, randomized controlled clinical trial, we enrolled 671 newborns. The infants undergoing shallow or deep heel stick procedures were randomized into four groups: oral sucrose (routine care, group S), oral sucrose combined with NNS (group NS), oral sucrose combined with swaddling (group SS) and oral sucrose combined with NNS and swaddling (group NSS). The behavioural responses were evaluated by the Revised Neonatal Facial Coding System and the physiological signals were monitored by electrocardiogram monitors.

RESULTS

A significant synergistic analgesic effect was observed between the NS and SS groups in both the shallow (F = 5.952, p = 0.015) and deep heel stick (F = 7.452, p = 0.007) procedure. NSS group exhibited the lowest pain score. For the deep heel stick procedure, the NS group had a significantly lower increase in heart rate (HR)% and decrease in SPO2 % than the S group (F = 17.540, p = 0.000, F = 10.472, p = 0.001), while this difference was not observed in the shallow heel stick procedure. No difference was found between the S and SS groups, in terms of different physiological parameters.

CONCLUSION

Non-nutritive sucking and swaddling had synergistic effects on pain relief when used with oral sucrose. For the deep heel stick procedure, oral sucrose combined with NNS and swaddling provided the best pain relief effect. For the shallow heel stick procedure, addition of NNS and swaddling did not improve the effects.

Non-pharmacological management of infant and young child procedural pain

BACKGROUND

Infant acute pain and distress is commonplace. Infancy is a period of exponential development. Unrelieved pain and distress can have implications across the lifespan.  This is an update of a previously published review in the Cochrane Database of Systematic Reviews, Issue 10 2011 entitled 'Non-pharmacological management of infant and young child procedural pain'.

OBJECTIVES

To assess the efficacy of non-pharmacological interventions for infant and child (up to three years) acute pain, excluding kangaroo care, and music. Analyses were run separately for infant age (preterm, neonate, older) and pain response (pain reactivity, immediate pain regulation). 

SEARCH METHODS

For this update, we searched the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library (Issue 2 of 12, 2015), MEDLINE-Ovid platform (March 2015), EMBASE-OVID platform (April 2011 to March 2015), PsycINFO-OVID platform (April 2011 to February 2015), and CINAHL-EBSCO platform (April 2011 to March 2015). We also searched reference lists and contacted researchers via electronic list-serves. New studies were incorporated into the review. We refined search strategies with a Cochrane-affiliated librarian. For this update, nine articles from the original 2011 review pertaining to Kangaroo Care were excluded, but 21 additional studies were added.

SELECTION CRITERIA

Participants included infants from birth to three years. Only randomised controlled trials (RCTs) or RCT cross-overs that had a no-treatment control comparison were eligible for inclusion in the analyses. However, when the additive effects of a non-pharmacological intervention could be assessed, these studies were also included. We examined studies that met all inclusion criteria except for study design (e.g. had an active control) to qualitatively contextualize results. There were 63 included articles in the current update.

DATA COLLECTION AND ANALYSIS

Study quality ratings and risk of bias were based on the Cochrane Risk of Bias Tool and GRADE approach. We analysed the standardized mean difference (SMD) using the generic inverse variance method.

MAIN RESULTS

Sixty-three studies, with 4905 participants, were analysed. The most commonly studied acute procedures were heel-sticks (32 studies) and needles (17 studies). The largest SMD for treatment improvement over control conditions on pain reactivity were: non-nutritive sucking-related interventions (neonate: SMD -1.20, 95% CI -2.01 to -0.38) and swaddling/facilitated tucking (preterm: SMD -0.89; 95% CI -1.37 to -0.40). For immediate pain regulation, the largest SMDs were: non-nutritive sucking-related interventions (preterm: SMD -0.43; 95% CI -0.63 to -0.23; neonate: SMD -0.90; 95% CI -1.54 to -0.25; older infant: SMD -1.34; 95% CI -2.14 to -0.54), swaddling/facilitated tucking (preterm: SMD -0.71; 95% CI -1.00 to -0.43), and rocking/holding (neonate: SMD -0.75; 95% CI -1.20 to -0.30). Fifty two of our 63 trials did not report adverse events. The presence of significant heterogeneity limited our confidence in the findings for certain analyses, as did the preponderance of very low quality evidence.

AUTHORS' CONCLUSIONS

There is evidence that different non-pharmacological interventions can be used with preterms, neonates, and older infants to significantly manage pain behaviors associated with acutely painful procedures. The most established evidence was for non-nutritive sucking, swaddling/facilitated tucking, and rocking/holding. All analyses reflected that more research is needed to bolster our confidence in the direction of the findings. There are significant gaps in the existing literature on non-pharmacological management of acute pain in infancy.