Published online September 30, 2005
PEDIATRICS Vol. 116 No. 4 October 2005, pp. e555-e558 (doi:10.1542/10.1542/peds.2005-0454)
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ELECTRONIC ARTICLE

Relationship Between Significant Perinatal Events and Migraine Severity

Seetha B. Maneyapanda, BA* and Anuradha Venkatasubramanian, MD{ddagger}

* Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey
{ddagger} Division of Pediatric Neurology, Robert Wood Johnson Medical School, New Brunswick, New Jersey

Objective. Nociceptive neuronal circuits are formed during embryonic and postnatal times, so insult during these periods may result in long-term alterations to pain circuitry via synaptic plasticity. One possible long-term result of plasticity is central hyperexcitability, which is suspected to be involved in chronic headache. This study aimed to establish whether there is an association between early pain experiences and the experience of migraines in later childhood.

Methods. In a retrospective study, we examined the charts of 280 pediatric migraineurs at the Division of Pediatric Neurology at Robert Wood Johnson Medical School and documented their perinatal history and migraine characteristics.

Results. Analysis revealed that there was a significant relationship between patients who had been in the NICU at birth and the type of pain medication prescribed when compared with patients who had not been in the NICU ({chi}2 test, {chi}22 = 23.304; N = 30250). Findings also suggested that pediatric migraine patients who had been in the NICU at birth had a significantly earlier age of onset of their migraines ({chi}2 ± SD = 7.83 ± 3.23; N = 30) when compared with patients who did not remain in the NICU ({chi}2 ± SD = 9.68 ± 3.57; N = 250; Kolmogorov-Smirnov Test, {chi}2 = 10.699).

Conclusion. On the basis of these findings, we speculate that pain experience as a neonate, through neuronal plasticity and resulting central hyperexcitability, can alter the later experience of pain. However, this observational study cannot validate these links. Other potential explanations that work either synergistically or alone include other forms of stimulation and greater parental vigilance that may occur when neonates spend time in the NICU. This study would prompt additional development of a larger prospective study to establish a link between early pain experience and subsequent pain syndromes and also future investigation into the treatment of pain in neonates as a preventive measure for avoiding long-lasting neuronal alterations.

Key Words: migraine headache • NICU • pain

Abbreviations: RWJMS, Robert Wood Johnson Medical School

Accepted May 6, 2005.


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