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Maternal Speech Decreases Pain Scores and Increases Oxytocin Levels in Preterm Infants During Painful Procedures

18 février 2021 mis à jour par: Manuela Filippa, University of Geneva, Switzerland
Preterm infants undergo early separation from parents and are exposed to frequent painful clinical procedures, with resultant short- and long-term effects on their neurodevelopment. We aimed to establish whether the mother's voice could provide an effective and safe analgesia for preterm infants and whether endogenous oxytocin (OXT) could be linked to pain modulation. Twenty preterm infants were exposed to three conditions-mother's live voice (speaking or singing) and standard care-in random order during a painful procedure. OXT levels (pg/mL) in saliva and plasma cortisol levels were quantified, and the Premature Infant Pain Profile (PIPP) was blindly coded by trained psychologists.

Aperçu de l'étude

Statut

Complété

Les conditions

Intervention / Traitement

Description détaillée

Preterm birth rates are continuously increasing in almost all countries, with 15 million premature infants being born every year worldwide1. Despite rapid advances in technology, the number of preterm-born children who show short- and long-term sequelae of prematurity, even before reaching school age, remains high. Around 40% of low birth weight preterm infants experience a complex spectrum of unfavourable neurodevelopmental outcomes when compared with their pairs at term. Thus, prematurity is of great concern for health policies in both low- and high-income countries. The impaired development of preterm infants is not only associated with medical factors, but it is also at least partly a consequence of the atypical early-life environment of these infants, including exposure to pain and separation from the primary caregivers.

The aim of the present work was first, to assess whether early closeness with parents during essential but painful clinical procedures could have a positive role in pain modulation in preterm infants, thus contributing to the universal right to pain relief. Second, we aimed to investigate the possible role of the oxytocinergic system in this putative pain modulation through maternal vocal contact.

In the present protocol, we introduce the effects of separation and early pain exposure as two environmental factors that are even more deleterious when concomitant, inducing short- and long-term problems in the preterm infant's development. We then suggest that there are protective effects of early closeness between parents and preterm infants in early care and, more specifically, of early vocal contact between parents and preterm infants during hospitalisation. Lastly, we discuss the role of oxytocin (OXT) as a crucial biomarker for attachment processes and in relation to brain inflammation due to stressful procedures for preterm infants in the neonatal intensive care unit (NICU).

Type d'étude

Interventionnel

Inscription (Réel)

20

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

  • Suisse
      • Geneva, Suisse, 1205
        • University of Geneva

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

6 mois à 8 mois (Enfant)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • age >29 weeks gestational age at birth,
  • weight >1000 g
  • stable medical condition (absence of mechanical ventilation, no additional oxygen)

Exclusion Criteria:

For infants

  • no specific pathological conditions
  • no genetic abnormalities

For mothers

  • history of substance abuse
  • mental health problems

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Soins de soutien
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation croisée
  • Masquage: Seul

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Maternal speech
During the intervention, mothers were asked to speak to their preterm infants in the incubators for 5 min preceding the heel prick procedure and for the subsequent 5 min.
Comportemental: Maternal speech
In both intervention conditions, speaking and singing, the mothers were asked not to touch the baby but to pay close attention to his/her reactions and to modulate the voice accordingly. A nurse was present during all procedures.
Expérimental: Maternal singing
During the intervention, mothers were asked to sing to their preterm infants in the incubators for 5 min preceding the heel prick procedure and for the subsequent 5 min.
Comportemental: Maternal singing
In both intervention conditions, speaking and singing, the mothers were asked not to touch the baby but to pay close attention to his/her reactions and to modulate the voice accordingly. A nurse was present during all procedures.
Comparateur actif: Standard care
During the control condition (without the mother), the newborn was placed by the nurse in the incubator in the standard care conditions recommended for painful procedures (supine position, wrapped and contained by the nest).
Comportemental: Standard care
the newborn was placed by the nurse in the incubator in the standard care conditions recommended for painful procedures (supine position, wrapped and contained by the nest).

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
pain score
Délai: Immediately after the procedure
The PIPP-R score is a cluster of physiological and behavioural measures. Physiological assessment was calculated on the heart rate and oxygen saturation levels as collected from the patient monitor by the researcher. Inter-rater reliability was assessed by three independent coders: expert coders 1 and 2 performed blinded ratings from offline muted videos and digitally recorded physiological parameters, whereas coder 3 was a trained nurse and performed a direct online rating of the scores. Higher levels of pain scores indicate higher levels of pain
Immediately after the procedure
oxytocin levels
Délai: Pre procedure
Early relational experiences can persistently affect social behaviours by modifying the oxytocin system and endogenous oxytocin regulation is a potential protective mechanism for early pain perception. Higher levels of oxytocin can indicate better pain protection.
Pre procedure
oxytocin levels
Délai: Immediately after the procedure
Early relational experiences can persistently affect social behaviours by modifying the oxytocin system and endogenous oxytocin regulation is a potential protective mechanism for early pain perception. Higher levels of oxytocin can indicate better pain protection.
Immediately after the procedure

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

University of Geneva, Switzerland

Les enquêteurs

  • Directeur d'études: Didier M Grandjean, Professor, University of Geneva

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

7 mars 2018

Achèvement primaire (Réel)

15 mai 2019

Achèvement de l'étude (Réel)

1 juillet 2020

Dates d'inscription aux études

Première soumission

13 février 2021

Première soumission répondant aux critères de contrôle qualité

18 février 2021

Première publication (Réel)

21 février 2021

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

21 février 2021

Dernière mise à jour soumise répondant aux critères de contrôle qualité

18 février 2021

Dernière vérification

1 février 2021

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • 90.513

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

Non

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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