The aim of the study was to investigate clinical features of headache associated with minor versus moderate to severe traumatic brain injury and of posttraumatic versus primary headache in children and adolescents. Study group included 74 patients after mild (n = 60) or moderate to severe (n = 14) traumatic brain injury identified by retrospective review of the computerized files of a tertiary pediatric headache clinic. Forty patients (54%) had migraine-like headache, 23 (31.1%) tension-like headache, and 11 (14.9%) nonspecified headache. Fourteen patients (53.8%) had allodynia. In comparison with 174 control patients, the study group had a significantly lower proportion of patients with migraine-like headache and a higher proportion of male patients and patients with allodynia. There was no statistically significant correlation of any of the clinical parameters with the type or severity of the posttraumatic headache or rate of allodynia. The high rate of allodynia in the study group may indicate a central sensitization in posttraumatic headache.
Background Several studies have reported dialysis-related headache in adults. We investigated headache and its characteristics in pediatric and adolescent patients with chronic kidney disease and patients treated with dialysis, and compared characteristics of patients with and without headache in the entire cohort and separately among dialysis and among chronic kidney disease patients. Methods Patients and their parents who attended a nephrology clinic and hemodialysis unit were interviewed regarding the existence of headache and its characteristics. We reviewed hospital files for medical history, blood test results, and pharmacologic treatment. Headache was defined according to International Headache Society criteria. Results The cohort comprised 60 patients: 39 with chronic kidney disease without hemodialysis and 21 treated with hemodialysis; 39 were males, mean age 11.9 ± 5.3 years. Twenty-six (43.3%) reported experiencing headaches. The hemodialysis group had a higher rate of headache than the chronic kidney disease patients, at 76.2% vs. 25.5%, p < 0.001. In the hemodialysis group, 15 out of 16 reported dialysis-related headache; 14 (87.5%) of these had migraine characteristics. For the entire cohort, headache was associated with hemodialysis, chronic kidney disease grade, lower glomerular filtration rate anemia and a higher parathyroid hormone level. In logistic regression analysis, glomerular filtration rate was significantly associated with headache, odds ratio 2.74 (95% CI 1.56-4.82, p < 0.001). Conclusions A high rate of headache, mostly migraine type, was reported by hemodialysis patients. Hemodialysis, anemia, higher parathyroid hormone levels, phosphate, and lower glomerular filtration rate are strongly associated with headache among chronic kidney disease pediatric and adolescent patients.
In children and adolescents, the bulk of the available data support an association between obesity and headache disorders in general, though a small number of studies contradict these findings. Relative to the adult population, however, few studies have focused specifically on migraine, and no wide-ranging meta-analyses have been conducted to date. It seems that the pathophysiology of obesity and migraine in adults holds true for the pediatric population as well. The association between obesity and migraine in the pediatric population is likely to be multifactorial and to involve both central and peripheral mechanisms. More attention is currently being addressed to the role of the hypothalamus and the bioactive neurotransmitters and neuropeptides that modulate energy homeostasis, namely serotonin, orexin, and the adiponectins, in migraine. A few innovative studies have demonstrated some benefit for migraine from weight reduction treatments such as exercise and lifestyle management. Many open questions remain regarding the modifiable nature of the obesity-migraine relationship and its implications in clinical practice. Further studies of these issues are needed.
Several background and clinical factors are identified that may predispose children with migraine to respond better to pharmacologic treatment. Clinicians who see children with migraine in a pediatric headache clinic setting should consider these factors before initiating a treatment program.
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