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Raieli V, D'Amico A, Piro E. Migraine in Children Under 7 Years of Age: a Review. Curr Pain Headache Rep 2020; 24:79. [PMID: 33326057 DOI: 10.1007/s11916-020-00912-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE OF REVIEW Despite the accumulation of a significant amount of data on pediatric headache, few studies have been conducted on its occurrence in children under 7 years of age. Within primary headaches in this age, migraine especially, turns out to be a disorder affecting up to 4% of the general population. An underestimate of its true prevalence can be due to lack of specific diagnostic markers, the frequent difficulty of describing pain in childhood, and the necessity of reliable parents' reports. Thus, migraine in children under 7 years of age represents an important challenge for clinicians. The objective of this manuscript is to provide a comprehensive review of epidemiologic, clinic, and therapeutic aspects of migraine in this age. RECENT FINDINGS Current literature data show that migraine has some differences, especially in clinical and therapeutic terms, in this age group compared to subsequent ages. Furthermore, some evidences showing that an early onset of migraine may play an unfavorable role in its natural history, suggest an early identification and management of migraine in younger children. Moreover, we highlight the role that factors of prenatal and perinatal development can play in the predisposition and anticipation of migraine onset. Finally, open questions related to the several undefined features of migraine in this age are reported. Migraine in this pediatric population is absolutely not rare, represents an importan clinical challenge and probably has a negative predictive role.
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Affiliation(s)
- Vincenzo Raieli
- Child Neuropsychiatry Unit- ISMEP -P.O. Cristina - ARNAS Civico, via dei Benedettini 1, Palermo, Italy.
| | - Antonina D'Amico
- Department for Health Promotion, Maternal Infant Care, Internal Medicine and Medical Specialties "G. D'Alessandro," Child Neuropsychiatry School, University Hospital "P. Giaccone", Via A. Giordano 3, 90127, Palermo, Italy
| | - Ettore Piro
- Department for Health Promotion, Maternal Infant Care, Internal Medicine and Medical Specialties "G. D'Alessandro," Neonatal Intensive Care Unit, University Hospital "P. Giaccone", Via A. Giordano 3, 90127, Palermo, Italy
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Kalita J, Bhoi SK, Misra UK. Effect of high rate rTMS on somatosensory evoked potential in migraine. Cephalalgia 2016; 37:1222-1230. [DOI: 10.1177/0333102416675619] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Sensitization and impaired habituation of cortical neurons have been reported in migraineurs. Repetitive transcranial magnetic stimulation (rTMS) may change these phenomena and be the basis of therapeutic response. We report the effect of 10 Hz rTMS on sensitization and habituation of median somatosensory evoked potential (SEP) in migraineurs, and correlate these changes with clinical response. Methods Migraineurs having four or more episodes of headache per month were included and their clinical details were noted. Three sessions of 10 Hz rTMS, 600 pulses in 412.4 seconds were delivered on the left frontal cortex corresponding to the hot spot of right abductor digiti minimi, on alternate days. Median SEP was done before and 30 minutes after the third rTMS session. Sensitization (block I N20 amplitude) and impaired habituation (if N20 amplitude of block 2 or 3 were not suppressed compared to block I) were noted. The reduction in frequency and severity of headache in the next month were noted and correlated with SEP changes. Results Ninety-four migraineurs were included; 56 received true rTMS and 38 sham stimulation. Following stimulation, reduction in N20 amplitude of block 1 correlated with a reduction in frequency and severity of headache at one month. The impaired habituation significantly improved in the true rTMS group compared to sham stimulation, and correlated with a reduction in the severity of headache but not with frequency. Conclusion In migraineurs, 10 Hz rTMS improves habituation and may be the biological basis of headache relief.
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Affiliation(s)
- Jayantee Kalita
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow 226014, India
| | - Sanjeev K Bhoi
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow 226014, India
| | - Usha K Misra
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow 226014, India
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Pro S, Tarantino S, Capuano A, Vigevano F, Valeriani M. Primary headache pathophysiology in children: The contribution of clinical neurophysiology. Clin Neurophysiol 2014; 125:6-12. [DOI: 10.1016/j.clinph.2013.04.335] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 04/23/2013] [Accepted: 04/26/2013] [Indexed: 11/28/2022]
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Ambrosini A, Magis D, Schoenen J. Migraine – clinical neurophysiology. HANDBOOK OF CLINICAL NEUROLOGY 2010; 97:275-93. [DOI: 10.1016/s0072-9752(10)97023-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Unay B, Ulas UH, Karaoglu B, Eroglu E, Akin R, Gokcay E. Visual and brainstem auditory evoked potentials in children with headache. Pediatr Int 2008; 50:620-3. [PMID: 19261106 DOI: 10.1111/j.1442-200x.2008.02643.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Headache is a common problem in the pediatric population. The purpose of the present study was to evaluate visual evoked potentials (VEP) and brainstem auditory evoked potentials (BAEP) in children with headache. METHODS Thirty-seven children fulfilling the International Headache Society Criteria for a diagnosis of migraine, 35 children with tension-type headache and 40 healthy children (control group) were enrolled in the study. RESULTS The mean age of patients and controls was 10.4 years. P100 latency and amplitudes of migraine patients were significantly higher than children with tension-type headache and control subjects. Children with tension-type headache also had higher P100 latency and amplitude values than control subjects but there was no statistical difference. BAEP responses were similar between all groups. CONCLUSION Measurement of VEP latency and amplitude is a valuable and reliable test for the diagnosis of migraine and can be used safely in childhood.
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Affiliation(s)
- Bulent Unay
- Department of Pediatrics, Gülhane Military Medical Academy, Etlik, Ankara, Turkey.
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Raieli V, Puma D, Brighina F. Role of neurophysiology in the clinical practice of primary pediatric headaches. Drug Dev Res 2008. [DOI: 10.1002/ddr.20205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Magis D, Ambrosini A, Bendtsen L, Ertas M, Kaube H, Schoenen J. Evaluation and proposal for optimalization of neurophysiological tests in migraine: part 1--electrophysiological tests. Cephalalgia 2007; 27:1323-38. [PMID: 17970766 DOI: 10.1111/j.1468-2982.2007.01440.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Neurophysiological testing has become a valuable tool for investigating brain excitability and nociceptive systems in headache disorders. Previous reviews have suggested that most neurophysiological tests have limited value for headache diagnosis, but a vast potential for exploring the pathophysiology of headaches, the central effects of certain pharmacological treatments and phenotype-genotype correlations. Many protocols, however, lack standardization. This meta-analytical review of neurophysiological methods in migraine was initiated by a task force within the EUROHEAD project (EU Strep LSHM-CT-2004-5044837-Workpackage 9). Most of the neurophysiological approaches that have been used in headache patients are reviewed, i.e. evoked potentials, nociception-specific blink reflex, single-fibre electromyography, neuroimaging methods (functional MRI, PET, and voxel-based morphometry) and the nitroglycerin attack-provoking test. For each of them, we summarize the results, analyse the methodological limitations and propose recommendations for improved methodology and standardization of research protocols. The first part is devoted to electrophysiological methods, the second to neuroimaging techniques and the NTG test.
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Affiliation(s)
- D Magis
- Headache Research Unit, Department of Neurology, University of Liège, Liège, Belgium
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Shibata K, Yamane K, Iwata M, Ohkawa S. Evaluating the effects of spatial frequency on migraines by using pattern-reversal visual evoked potentials. Clin Neurophysiol 2005; 116:2220-7. [PMID: 16043404 DOI: 10.1016/j.clinph.2005.05.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2004] [Revised: 05/16/2005] [Accepted: 05/29/2005] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To clarify the effects of contrast and spatial frequency in patients with migraine by means of pattern-reversal visual evoked potentials (PVEPs). METHODS PVEPs were obtained from 14 patients who had migraine without aura (MO), 11 patients who had migraine with aura (MA), and 25 age-matched, healthy controls (CO). PVEPs were binocularly recorded with a reversal rate of 1Hz (2 reversal/s) at 3 spatial frequencies (0.5, 1.0 and 4.0 cpd) at high (98%), medium (83%) and low (29%) contrast. N75, P100 and N135 latency and the amplitudes of P50-N75, N75-P100 and P100-N135 were analyzed. RESULTS Increased amplitude of PVEPs in patients with migraines were revealed at 3 different spatial frequencies in all components. The MO and the MA showed increased amplitudes mostly in high contrasts (98%). These findings were detected more at a high spatial frequency (4.0 cpd) than at a low spatial frequency (0.5 cpd). Increased amplitude with prolonged latency of N135 were found both in MO and MA at 4.0 cpd. CONCLUSIONS We conclude that pattern stimuli of high contrasts may be particularly effective in uncovering abnormal cortical reactivity which may be modified in the primary and secondary visual cortex in the interictal state of migraine. SIGNIFICANCE These findings indicate that there is abnormal visual cortex processing in patients with migraine.
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Affiliation(s)
- K Shibata
- Department of Medicine, Tokyo Women's Medical University, School of Medicine, Daini Hospital, 2-1-10 Nishiogu, Arakawa-ku, Tokyo 116-8567, Japan.
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Ambrosini A, de Noordhout AM, Sándor PS, Schoenen J. Electrophysiological studies in migraine: a comprehensive review of their interest and limitations. Cephalalgia 2003; 23 Suppl 1:13-31. [PMID: 12699456 DOI: 10.1046/j.1468-2982.2003.00571.x] [Citation(s) in RCA: 115] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Electrophysiological methods may help to unravel some of the pathophysiological mechanisms of migraine. Lack of habituation is the principal and most reproducible interictal abnormality in sensory processing in migraineurs. It is found in evoked potential (EP) studies for every stimulation modality including nociceptive stimuli, and it is likely to be responsible for the increased intensity dependence of EP. We have hypothesized that deficient EP habituation in migraine could be due to a reduced preactivation level of sensory cortices because of hypofunctioning subcortico-cortical aminergic pathways. This is not in keeping with simple hyperexcitability of the cortex, which has been suggested by some, but not all, studies of transcranial magnetic stimulation (TMS). A recent study of the effects of repetitive TMS on visual EP strongly supports the hypothesis that migraine is characterized by interictal cortical hypoexcitability. With regard to pain mechanisms in migraine, electrophysiological studies of trigeminal pathways using nociceptive blink and corneal reflexes have confirmed that sensitization of central trigeminal nociceptors occurs during migraine attacks.
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Affiliation(s)
- A Ambrosini
- Headache Clinic, INM Neuromed, IRCCS, Pozzilli (Isernia),Italy
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Schoenen J, Ambrosini A, Sándor PS, Maertens de Noordhout A. Evoked potentials and transcranial magnetic stimulation in migraine: published data and viewpoint on their pathophysiologic significance. Clin Neurophysiol 2003; 114:955-72. [PMID: 12804664 DOI: 10.1016/s1388-2457(03)00024-5] [Citation(s) in RCA: 162] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Migraine is a disorder in which central nervous sytem dysfunction might play a pivotal role. Electroneurophysiology seems thus particularly suited to study its pathophysiology. We have extensively reviewed evoked potential and transcranial magnetic stimulation studies performed in migraineurs in order to identify their pathophysiologic significance. Publications available to us were completed by a Medline search. Retrieved and personal data were compared with respect to methodology and interpreted according to present knowledge on cortical information processing. Results are in part contradictory which appears to be method-, patient- and disease- related. Nonetheless, both evoked potential and transcranial magnetic stimulation studies demonstrate that the cerebral cortex, and possibly subcortical structures, are dysfunctioning interictally in both migraine with and without aura. These electrophysiologic abnormalities tend to normalise just before and during an attack and some of them seem to have a clear familial and predisposing character. Besides the studies of magnetophosphenes which have yielded contrasting results, chiefly because the method is not sufficiently reliable, most recent electrophysiologic investigations of cortical activities in migraine favour deficient habituation and decreased preactivation cortical excitability as the predominant interictal dysfunctions. We propose that the former is a consequence of the latter and that it could favour both interictal cognitive disturbances as well as a cerebral metabolic disequilibrium that may play a role in migraine pathogenesis. To summarize, electrophysiologic studies demonstrate in migraine between attacks a cortical, and possibly subcortical, dysfunction of which the hallmark is deficient habituation.
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Affiliation(s)
- Jean Schoenen
- University Department of Neurology, CHR Citadelle, Blvd du XIIèmede Ligne, 1-B-4000, Liège, Belgium.
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Marrelli A, Tozzi E, Porto C, Cimini N, Aloisi P, Valenti M. Spectral analysis of visual potentials evoked by pattern-reversal checkerboard in juvenile patients with headache. Headache 2001; 41:792-7. [PMID: 11576204 DOI: 10.1046/j.1526-4610.2001.01145.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Changes in visual evoked potentials, mainly affecting the amplitude of the major positive wave, are referred to by many authors and are related to the pathophysiological basis of primary headache. We performed both transient pattern-reversal visual evoked potentials and spectral analysis by means of fast Fourier transform of 8-Hz steady-state pattern-reversal visual evoked potentials in 34 children affected with migraine (14 with aura, 20 without aura), and compared them with 14 patients with tension-type headache and 10 healthy subjects. The amplitude of the response to the transient stimulation (P100) was higher and the latency shorter in the patients with headache compared with the controls, but the difference was not statistically significant. The absolute power of the first harmonic (1F) obtained by the spectral analysis of the steady-state stimulation was increased in all the patients with headache compared with the controls, and the increase was significant in patients with migraine. These data seem to confirm the hypothesis of abnormal processing of visual input in migraineurs and could be interpreted as neurophysiological support for the theory that different headache types are related conditions. Furthermore, the spectral analysis of steady-state pattern-reversal visual evoked potentials could be proposed as a test to diagnose migraine.
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Affiliation(s)
- A Marrelli
- Unità Operativa di Neurofisiopatologia, Ospedale S. Salvatore-Coppito; Clinica Pediatrica, Università di L'Aquila, L'Aquila, Italy
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Abstract
Headache is one of the most common disorders that occurs during the early, developmental years of life. The present review critically discusses the most recently published reports concerning headache with onset in youngsters, delineating the current status of research in the various fields and outlining areas that require further investigation. Age-related characteristics need to be taken into account with considering the aetiology, diagnosis and treatment of juvenile headache.
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Affiliation(s)
- V Guidetti
- Interuniversity Centre for the Study of Headache and Neurotrasmitter Disorders, University of Bari, Italy
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