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

18 de fevereiro de 2021 atualizado por: 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.

Visão geral do estudo

Descrição detalhada

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).

Tipo de estudo

Intervencional

Inscrição (Real)

20

Estágio

  • Não aplicável

Contactos e Locais

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Locais de estudo

      • Geneva, Suíça, 1205
        • University of Geneva

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

6 meses a 8 meses (Filho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

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

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Cuidados de suporte
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição cruzada
  • Mascaramento: Solteiro

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: 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.
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.
Experimental: 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.
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.
Comparador Ativo: 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).
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).

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
pain score
Prazo: 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
Prazo: 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
Prazo: 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

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Investigadores

  • Diretor de estudo: Didier M Grandjean, Professor, University of Geneva

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

7 de março de 2018

Conclusão Primária (Real)

15 de maio de 2019

Conclusão do estudo (Real)

1 de julho de 2020

Datas de inscrição no estudo

Enviado pela primeira vez

13 de fevereiro de 2021

Enviado pela primeira vez que atendeu aos critérios de CQ

18 de fevereiro de 2021

Primeira postagem (Real)

21 de fevereiro de 2021

Atualizações de registro de estudo

Última Atualização Postada (Real)

21 de fevereiro de 2021

Última atualização enviada que atendeu aos critérios de controle de qualidade

18 de fevereiro de 2021

Última verificação

1 de fevereiro de 2021

Mais Informações

Termos relacionados a este estudo

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

Não

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

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