BACKGROUND: Traditionally, 10 years ago, children born preterm often routinely received morphine, especially during mechanical ventilation. Studies in neonatal rats, whose stage of brain development roughly corresponds to that of children born preterm, found negative long-term effects after pain and opioid exposure. OBJECTIVES: We studied possible effects of prematurity, procedural pain and opioids in humans 10 years later. We hypothesized that these factors would negatively influence neurobiological, neuropsychological and sensory development later in life. METHODS: We included 19 children born preterm who as neonates participated in an RCT on the short-term effects of morphine administration and who previously participated in our follow-up studies at ages 5 and 8/9 years. We assessed associations between brain morphology (n = 11), neuropsychological functioning (n = 19) and thermal sensitivity (n = 17) and prematurity, opioid exposure and neonatal pain. RESULTS: Significant correlations (coefficients 0.60-0.85) of gestational age, number of painful procedures and morphine exposure with brain volumes were observed. Significant correlations between these factors and thermal sensitivity were not established. Neuropsychological outcome was significantly moderately correlated with morphine exposure in only two subtests, and children performed in general 'average' by Dutch norms. CONCLUSIONS: Although prematurity, opioid exposure and neonatal pain were significantly associated with brain volume, no major associations with neuropsychological functioning or thermal sensitivity were detected. Our findings suggest that morphine administration during neonatal life does not affect neurocognitive performance or thermal sensitivity during childhood in children born preterm without brain damage during early life. Future studies with larger sample sizes are needed to confirm these findings.
RCT Entities:
BACKGROUND: Traditionally, 10 years ago, children born preterm often routinely received morphine, especially during mechanical ventilation. Studies in neonatal rats, whose stage of brain development roughly corresponds to that of children born preterm, found negative long-term effects after pain and opioid exposure. OBJECTIVES: We studied possible effects of prematurity, procedural pain and opioids in humans 10 years later. We hypothesized that these factors would negatively influence neurobiological, neuropsychological and sensory development later in life. METHODS: We included 19 children born preterm who as neonates participated in an RCT on the short-term effects of morphine administration and who previously participated in our follow-up studies at ages 5 and 8/9 years. We assessed associations between brain morphology (n = 11), neuropsychological functioning (n = 19) and thermal sensitivity (n = 17) and prematurity, opioid exposure and neonatal pain. RESULTS: Significant correlations (coefficients 0.60-0.85) of gestational age, number of painful procedures and morphine exposure with brain volumes were observed. Significant correlations between these factors and thermal sensitivity were not established. Neuropsychological outcome was significantly moderately correlated with morphine exposure in only two subtests, and children performed in general 'average' by Dutch norms. CONCLUSIONS: Although prematurity, opioid exposure and neonatal pain were significantly associated with brain volume, no major associations with neuropsychological functioning or thermal sensitivity were detected. Our findings suggest that morphine administration during neonatal life does not affect neurocognitive performance or thermal sensitivity during childhood in children born preterm without brain damage during early life. Future studies with larger sample sizes are needed to confirm these findings.
Authors: Jill G Zwicker; Steven P Miller; Ruth E Grunau; Vann Chau; Rollin Brant; Colin Studholme; Mengyuan Liu; Anne Synnes; Kenneth J Poskitt; Mikaela L Stiver; Emily W Y Tam Journal: J Pediatr Date: 2016-01-04 Impact factor: 4.406
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Authors: Mountasser M Al-Mouqdad; Dima Z Jamjoom; Roya Huseynova; Thanaa M Khalil; Yasmeen S Asfour; Bushra A Albeshri; Nadia A Basodan; Fuddah Assiri; Suzan S Asfour Journal: Sci Rep Date: 2022-03-16 Impact factor: 4.379
Authors: Gerdien A Zeilmaker-Roest; Enno D Wildschut; Monique van Dijk; Brian J Anderson; Cormac Breatnach; Ad J J C Bogers; Dick Tibboel Journal: BMJ Paediatr Open Date: 2017-07-05
Authors: Hanneke IJsselstijn; Maayke Hunfeld; Raisa M Schiller; Robert J Houmes; Aparna Hoskote; Dick Tibboel; Arno F J van Heijst Journal: Front Pediatr Date: 2018-06-26 Impact factor: 3.418