Headache diary in the diagnosis of childhood migraine

Resilience and vulnerability in adolescents with primary headaches: A cross-sectional population-based study

BACKGROUND

A scarcity of studies on the role of resilience resources (RRs) and vulnerability risk (VR) in children and adolescents with primary headache hampers the development of a risk-resilience model for pediatric headaches.

OBJECTIVE

To examine the extent to which headache frequency and diagnosis are associated with RRs and VR and explore possible predictors of low RRs and high VR in a cross-sectional population-based study in adolescents.

METHODS

This is a cross-sectional population study conducted in a small city in Brazil (Delfinópolis). Consents and analyzable data were obtained from 339/378 adolescents (89.7%). RRs and VR were assessed using the validated Brazilian version of the Resiliency Scales for Children and Adolescents, completed by the adolescents. Parents filled a structured questionnaire assessing sociodemographic and headache characteristics, as well as the Brazilian-validated version of the Strengths and Difficulties Questionnaire added to the impact supplement to evaluate the adolescent's psychosocial adjustment skills. Teachers completed a structured questionnaire about the students' school performance.

RESULTS

A higher frequency of headache was associated with lower RRs (F_3,335  = 2.99, p = 0.031) and higher VR (F_3,335  = 4.05, p = 0.007). Headache diagnosis did not significantly influence the risk of having lower RRs or higher VR. In the exploratory analyses, females (OR 3.07; 95% CI: 1.16-9.3) and individuals with psychosocial adjustment problems (OR 7.5; 95% CI: 2.51-22.4) were predictors of low RRs, and prenatal exposure to tobacco (OR 5.6; 95% CI: 1.57-20.9) was a predictor of high VR in adolescents with primary headache.

CONCLUSIONS

The risk of low RRs and high VR was associated with a higher headache frequency, but not with headache diagnosis. These findings may contribute to the development of a risk-resilience model of headaches in the pediatric population and help identify novel targets and develop effective resources for successful interventions.

Pediatric Pain Measurement, Assessment, and Evaluation

Assessment provides the foundation for diagnosis, selection of treatments, and evaluation of treatment effectiveness for pediatric patients with acute, recurrent, and chronic pain. Extensive research has resulted in the availability of a number of valid, reliable, and recommended tools for assessing children's pain. Yet, evidence suggests children's pain is still not optimally measured or treated. In this article, we provide an overview of pain evaluation for premature neonates to adolescents. The difference between pain assessment and measurement is highlighted; and the key steps to follow are identified. Information about self-report and behavioral pain assessment tools appropriate for children are provided; and factors to be considered when choosing a specific one are outlined. Finally, we preview future approaches to personalized pain medicine in pediatrics that include harnessing the use of potential digital health technologies and genomics.

Assessment of Headache Diagnosis. A Comparative Population Study of a Clinical Interview With a Diagnostic Headache Diary

The level of agreement between headache information, attained by clinical interview and headache diary, was evaluated in subjects who frequently suffered from headache and were participating in an epidemiological study of headache. One hundred and six subjects were interviewed and asked to complete a diary for a period of 4–8 weeks; 46% completed the study. For migraine the diary and clinical diagnoses demonstrated agreement in 82%, κ value 0.57, sensitivity 90% and specificity 64%. For tension-type headache they demonstrated agreement in 87%, κ value 0.39, sensitivity 97%, specificity 29% and a good agreement of frequency of tension-type headache was also obtained. In migraine, but not in tension-type headache, accompanying symptoms tended to be overestimated in the interview. The diary was not useful for the diagnosis of migraine with aura, but proved valuable in distinguishing between migraine and tension-type headache, and in the identification of coexisting headache disorders. Combined use of a diagnostic diary and clinical interview is recommended.

Changing Headache from Preschool Age to Puberty. A Controlled Study

The characteristics of disturbing primary headache and the occurrence of headache types were studied by sending a questionnaire to 1132 Finnish families of 6-year-old children. Children with headache in the preceding 6 months and their controls were clinically examined at the ages of 6 and 13. During the follow-up, half of the headaches, classified as migraine at age 6 years, were unchanged and 32% turned into tension-type headache. In children with tension-type headache, the situation was unchanged in 35%, and in 38% of children the headache type had changed to migraine. At preschool age the most common location of headache was bilateral and supraorbital, and at puberty bilateral and temporal. During the follow-up, symptoms concurrent with headache, such as odour phobia, dizziness and balance disturbances became more typical, whereas restlessness, flushing and abdominal symptoms became less marked. The early manifestation of both migraine and tension-type headache predict equally often migraine in puberty with marked changes in concurrent symptoms and pain localization.

Assessment of headache characteristics in a general adolescent population: a comparison between retrospective interviews and prospective diary recordings

Background

Reliable information on headache characteristics, including frequency and intensity, headache-associated impairment, and use of analgesic medications, may depend on the assessment method used. This study analyzed the correlations between headache characteristics determined in structured interviews and those determined in prospective diary recordings kept by adolescents in the general population.

Methods

In this cross-sectional school-based study, a representative sample of 488 adolescents aged 12–18 years were interviewed about headaches experienced during the previous year. Headache diaries for a three-week period were kept by 393 participants: 244 girls (62 %) and 149 (38 %) boys.

Results

Most adolescents (88 %) who reported headaches during their interview also recorded headaches in their diary. In contrast, 51 % of those who reported being headache-free during the last year recorded headaches in their diary. In the interviews, frequent headaches (at least 50 % of days during the last year) were reported by 2.9 % of participants, while 25.5 % reported this headache frequency in their diary. Overall, the ratings of headache frequency were significantly higher in diaries than in interviews (p < 0.001). Significant but low correlations were observed between intensity levels reported retrospectively and prospectively (rho = 0.28; p < 0.001) and between average scores of headache-related impairment reported retrospectively and prospectively (rho = 0.35; p < 0.001). The use of medications by those who reported one or more current headache disorder during their interview was significantly lower in prospective recordings than in the retrospective interview estimates (p < 0.001).

Conclusions

There is inconsistency in the estimates of headache characteristics between retrospective reports and diary recordings. A comprehensive picture of headache complaints among adolescents may be better obtained through a combination of prospective diary recordings and interviews by school health and clinical services.

Prevalence and disability of headache among Norwegian adolescents: A cross-sectional school-based study

Background

Headache is common in adolescents and affects schoolwork and relations with friends and family. In most previous epidemiological surveys, only the most bothersome headache has been documented. The aim was to determine headache prevalence not only taking into account the most bothersome headache, but also to compare characteristics of the most bothersome and less bothersome headaches, and to investigate headache-related disability.

Methods

A cross-sectional school-based study was conducted in which 493 representative adolescents aged 12–18 years were recruited by stratified cluster sampling and interviewed. Headache diagnosis was made according to the new classification system of the International Headache Society (ICHD-3 beta), and the Pediatric Migraine Disability Assessment (PedMIDAS) was used to evaluate disability.

Results

The one-year prevalence of any headache type, definite migraine, probable migraine and tension-type headache was 88%, 23%, 13% and 58%, respectively. The point prevalence of any headache was 38%. Nine percent of participants fulfilled criteria for more than one headache diagnosis. The most bothersome headache had a significantly longer duration ( p < 0.001) and higher intensity ( p < 0.001) than the less bothersome headache, but similar frequency ( p = 0.86). Adolescents with headaches lost up to nine days of activity each year, implicating headache as a major health issue.

Conclusions

Headaches are very common and disabling among adolescents. The full extent of this health problem is better appreciated if inquiry is not limited to the most bothersome subtypes.

Headache prevalence and characteristics among adolescents in the general population: a comparison between retrospect questionnaire and prospective paper diary data

Background

In the present school-based study, a convenience sample of 237 adolescents in grade 6-9 and second year in high school (age 12-18 years) was recruited from a city and a smaller town. The aim of the study was to compare information on the prevalence and various characteristics of headaches not related to disease in a retrospect questionnaire and prospective daily recordings of headaches in a standard paper diary during a 3-week period.

Methods

Besides headache severity, number of headache days, intensity levels and duration of headache episodes were estimated with both assessment methods. Most of the school children suffered from tension-type headaches and a smaller portion of migraine attacks.

Results

The overall results showed that school children significantly (p < 0.001) overestimated headache intensity in questionnaires as compared to diary recordings, whereas they underestimated frequency (p < 0.001) and duration (p < 0.001) of headaches. While the correlations on headache severity, frequency and duration between retrospect information in questionnaires and prospective diary recordings were low, the agreement varied with levels of headache characteristics.

Conclusions

Our findings concur well with results from a few similar community studies on headache complaints in school-aged children. We recommend that prospective recordings in diaries should be systematically used in clinical practice but also in epidemiological surveys to increase the validity and reliability in estimates of point prevalence of headache complaints in children and adolescents.

Headache prevalence and characteristics among school children as assessed by prospective paper diary recordings

In the present school-based study, a convenience sample of 477 students in grades 6-9 and second year in high school from a city and a smaller town recorded daily occurrence and intensity of headaches in a standard paper diary during a 3-week period. Total headache activity (headache sum), number of headache days, intensity level and duration for weekly headaches were estimated. Approximately 85% of the adolescents had experienced headache of any intensity level during the 3-week recording period. On the average, they reported 2.5 headache days per week and a mean intensity level for headache episodes of 1.7. Our estimates for headache of any intensity level (1-5) occurring at least once a week was surprisingly high (73.8%). For the highest intensity level across the whole 3-week period, almost identical proportions of mild and moderate headaches were reported by students (22.3-22.5%), while about twice as many (40.7%) had experienced severe headaches. Girls consistently reported more headaches than boys, in particular of the moderate and severe intensity types. Students in the city also reported more frequent and intense headaches than those in the town. Peak headache activity was observed at noon and in the afternoon and in the days from the middle of the week until weekend. The use of prospective recordings in diaries will further advance our knowledge on the prevalence and characteristics of recurrent headaches among children and adolescents in community samples.

A basic diagnostic headache diary (BDHD) is well accepted and useful in the diagnosis of headache. a multicentre European and Latin American study

AIMS

We tested the usability and usefulness of the basic diagnostic headache diary (BDHD) for the diagnosis of migraine, tension-type headache and medication-overuse headache in European and Latin American countries.

METHODS

Patients were subdivided into two groups according to a 1:1 randomization list. Those in group 1 were sent the BDHD before their first visit to the headache centre and asked to complete it for at least 1 month. Those in group 2 made their first visit to the headache centre without receiving the BDHD.

RESULTS

A total of 626 patients from nine countries and 16 centres completed the study. The BDHD entries were complete in 97.5% of cases. BDHD information and clinical interview were, when taken together, considered complete for diagnosis in 97.7% of cases in group 1 whereas the information obtained by clinical interview alone in group 2 was considered complete in only 86.8% of cases (p < 0.001). The median number of diagnoses per patient in group 1 was significantly higher than in group 2 (p = 0.04). The BDHD was very well accepted by both patients and doctors.

CONCLUSIONS

It is concluded that the BDHD is a useful tool in the diagnostic assessment of the most frequent and disabling forms of primary headache and in headache management.

Children are reliable reporters of common symptoms: results from a self-reported symptom diary for primary school children

BACKGROUND

Collecting information on subjective symptoms in children by parental reports or physician's interview is indirect and not suited for prospective data collection over extended time periods.

AIM

To examine the reliability of a diary for symptom self-reports by primary school children.

METHODS

Children aged 7-8 or 11-12 were recruited from primary school and a paediatric outpatient department. A picture-based symptom diary was completed individually. Children were asked about presence of 10 specified subjective symptoms for five time periods covering the previous 24 h. The diary was completed twice for test-retest and answers were compared with semi structured physician's interviews.

RESULTS

Test-retest reliability for reporting a symptom during the previous 24 h gave reliable kappa values of 0.64-0.91. Comparison with physician's interview gave kappas of 0.18-0.68. Requiring correct time of day for each symptom reduced reliability and validity. Kappa values for test-retest and child-physician agreement for the individual symptoms were respectively: sneezing, 0.80 and 0.30; sore throat, 0.89, 0.30; tiredness, 0.88, 0.65; headache, 0.64, 0.66; runny nose, 0.91, 0.68; sore eyes, 0.67, 0.18; cough, 0.73, 0.58; stomach ache, 0.69, 0.45.

CONCLUSION

Our symptom diary gives reliable self-report data from primary school children. It may be used for prospective symptom monitoring.

Headache diaries and calendars

Headache is one of the most common types of pain and, in the absence of biological markers, headache diagnosis depends only on information obtained from clinical interviews and physical and neurological examinations. Headache diaries make it possible to record prospectively the characteristics of every attack and the use of headache calendars is indicated for evaluating the time pattern of headache, identifying aggravating factors, and evaluating the efficacy of preventive treatment. This may reduce the recall bias and increase accuracy in the description. The use of diagnostic headache diaries does have some limitations because the patient's general acceptance is still limited and some subjects are not able to fill in a diary. In this chapter, we consider diaries and calendars specially designed for migraine and, in particular, aim to: (1) determine what instruments are available in clinical practice for diagnosis and follow-up of treatments; and (2) describe the tools that have been developed for research and their main applications in the headache field. In addition, we include information on diaries available online and proposals for future areas of research.

Developmental changes of the contingent negative variation in migraine and healthy children

It has been hypothesized that abnormalities of information processing in migraine may be attributed to impairment of cerebral maturation. However, the most evidences for this hypothesis have come from cross-sectional studies during childhood. We performed a longitudinal study and recorded contingent negative variation (CNV), an event-related slow cortical potential, in migraine children (n = 27) and age-matched healthy individuals (n = 23) in 1998 and 8 years later (2006). Amplitudes of all CNV components were reduced and habituation of the initial CNV (iCNV) increased in the observed time. However, the reduction of the iCNV amplitude was more pronounced in migraine patients who were in remission in 2006 and in healthy subjects and less pronounced in migraineurs with persisting headaches. Patients with the worsened migraine demonstrated the most pronounced loss of iCNV habituation in 1998 and significantly increased iCNV amplitudes in 2006. This longitudinal study supports the hypothesis of impaired cerebral maturation in migraine and shows that migraine manifestation is a key factor interfering with the natural maturation process of central information processing.

The Usefulness and Applicability of a Basic Headache Diary Before First Consultation: Results of a Pilot Study Conducted In Two Centres

We tested the usefulness and applicability of a simplified headache diary in the diagnosis of migraine (M), tension-type headache (TTH) and medication overuse headache (MOH). The diary was given to headache patients before their first consultation at the headache centre. Seventy-six naive headache patients completed the study. Their understanding of the diary proved highly satisfactory. The patients' level of compliance was also good, with 71± returning the diary completely filled in. The data entered in the diary were deemed complete for the diagnostic purpose in 93± of cases. The level of agreement between headache information gathered through clinical interview and the headache diary was satisfactory. When comparing the diary with the clinical interview, sensitivity was 92± for M, 75± for TTH and MOH. Specificity was 58± for M and TTH, 87± for MOH. Combined use of a diagnostic diary and clinical interview is recommended from the first consultation for headache.

Does neck pain determine the outcome of adolescent headache?

The aim of the study was to examine the influence of concomitant neck pain (NP) on the outcome of headache (HA) frequency and HA type in adolescence. A population-based sample of 13-year-olds with or without HA (n = 228) was followed for 3 years. NP was evaluated at the beginning of the follow-up on the basis of recorded muscle tenderness and self-reported symptoms. During the 3 years of follow-up, changes in both HA type and frequency were common. NP interfering with daily activities at the age of 13 years predicted change from non-frequent (0-1/month) to monthly HA (>1/month), especially in boys (P = 0.03 boys, P = 0.06 girls). The use of physiotherapy predicted persistence of monthly HA in boys (P = 0.004). The changes in HA type were not predictable by NP. In conclusion, the risk of worsening HA in adolescence is more probable if the HA is associated with NP interfering with daily activities.

Diaries and calendars for migraine. A review

Headache is one of the most common types of pain and, in the absence of biological markers, headache diagnosis depends only on information obtained from clinical interviews and physical and neurological examinations. Headache diaries make it possible to record prospectively the characteristics of every attack and the use of headache calendars is indicated for evaluating the time pattern of headache, identifying aggravating factors and evaluating the efficacy of preventive treatment. This may reduce the recall bias and increase accuracy in the description. The use of diagnostic headache diaries does have some limitations because the patient's general acceptance is still limited and some subjects are not able to fill in a diary. In this review, we considered diaries and calendars especially designed for migraine and, in particular, we aimed at: (i) determining what instruments are available in clinical practice for diagnosis and follow-up of treatments; and (ii) describing the tools that have been developed for research and their main applications in the headache field. In addition to the literature review, we added two paragraphs concerning the authors' experience of the use of diaries and calendars in headache centres and their proposals for future areas of research.

Self-reported headache in schoolchildren: parents underestimate their children's headaches

BACKGROUND

Most previous studies of childhood headache have used indirect parental/physician reports to estimate the prevalence of headache in children.

AIM

To use direct information from children and to compare the results with data collected from parents.

STUDY DESIGN/METHODS

A cross-sectional questionnaire was sent to parents of 7-12-y-olds in Oslo, Norway. The questionnaire included retrospective reports by the parents of the presence of headache among their children during the past 6 mo. A panel study was subsequently done with daily diaries completed by the children over 6 wk. This was done at school.

RESULTS

For 2126 children, both diary reports and parental reports were available. We found a 1-mo prevalence of self-reported headache of 57.6%. Parents, particularly fathers, reported lower headache prevalence than the children. The difference between parental reports and those of the children was larger when the child was a girl. There was a clear difference for the youngest children and parental underreporting for children with the most frequent headaches.

CONCLUSION

Since indirect parental reports of child headache underestimated headache frequency compared to direct diary-based self-reports, we suggest more widespread use of diary registration of headaches in studies of child headache.

Behavioral assessment and treatment of pediatric headache

Headaches are quite common in children and adolescents, and they appear to persist into adulthood in a sizable number of individuals. Assessment approaches (interview, pain diaries, and general and specific questionnaires) and behavioral treatment interventions (contingency management, relaxation, biofeedback, and cognitive behavior therapy) are reviewed, as is the evidence base for their use. The article concludes with practical suggestions for headache management.

Tension-type headache in childhood and adolescence

The prevalence of non-migrainous headache is 10-25% in childhood and adolescence. Although tension-type headache and migraine are the two most common types of headache in children and adolescents, most articles address migraine headache. The distinction of tension-type headache from migraine can be difficult; use of The International Classification of Headache Disorders criteria helps. However, these criteria might be too restrictive to differentiate tension-type headache from migraine without aura in children. The pathophysiology of tension-type headache is largely unknown. The smaller genetic effect on tension-type headache than on migraine suggests that the two disorders are distinct. However, many believe that tension-type headache and migraine represent the same pathophysiological spectrum. Some indications of effective treatment exist. For children with frequent headache, the antidepressant amitriptyline might be beneficial for prophylaxis, although no placebo-controlled studies have been done. Restricted studies have suggested the efficacy of psychological and cognitive behavioural approaches in the treatment of childhood tension-type headache.

Migraine de l’enfant

In childhood and adolescence, migraine is the main primary headache. This diagnosis is largely underestimated and misdiagnosed in the pediatric population. Because of the lack of specific biologic markers, specific investigation tools or brain imaging techniques, these clinical entities are too often considered to be a psychological illness. Migraine is a severe headache evolving by stereotyped attacks associated with marked digestive symptoms (nausea and vomiting); throbbing pain and sensitivity to sound or light are common symptoms; the attack is sometimes preceded by a visual or sensory aura. During attacks, pain intensity is severe; most of the children have to lie down. Abdominal pain is frequently associated, rest brings relief and sleep often ends the attack. The prevalence of migraine varies between 5 percent and 10 percent in childhood. In children, the duration of the headache is quite often shorter than in adults; it is more often frontal and bilateral (2/3 of cases) than one-sided. Migraine is a disabling illness: children with migraine miss more school days in a school year than their matched controls. Migraine episodes are frequently triggered by several factors: emotional stress (school pressure, vexation, excitement: upset), hypoglycemia, lack of sleep or excess (week end migraine), sensorial stimulation (loud noise, bright light, strong odor, heat or cold...), sympathetic stimulation (sports, physical exercise). Treatment must be given early at onset of attacks; oral ibuprofen (10 mg/kg) is recommended. If the oral route in not available because of nausea or vomiting, the rectal or nasal routes can be used. Triptan can be prescribed (body weight above 30 kg) when NSAID (prescribed at right dose and time) fail to abort the attack. Non-drug treatments (relaxation training, self hypnosis, biofeedback) have shown to have good efficacy as prophylactic measures. Daily prophylactic drug treatments are prescribed in second line after failure of non-drug treatment.

Tension-type headache in children and adolescents

Although tension-type headache is at least as prevalent as migraine in children and adolescents, in contrast to migraine, childhood tension-type headache has received limited research attention. Follow-up studies have shown that migraine may reverse in tension-type headache and vice versa. In addition, children with frequent episodic tension-type headache may be at increased risk of chronic tension-type headache. It is very important to recognize these children and to intervene. Further studies are needed to clarify the pathophysiology of pediatric tension-type headache.

[How children aged 7 to 11 explain their headache]

The aim of the present study was to observe the ability of children aged 7 to 11 in describing their headache during anamnesis. For this purpose, two evaluations of 94 children were performed in individual assessments, done by the same Pediatrician, within a six to eight week interval, without the presence of adults. The characteristics of headache in these children could be properly evaluated during the interviews. There were no remarkable conflicting information between the two interviews. Although the headache of the child is usually described by the accompanying adult during the consultation, childhood headache should really be informed by the patient. In this group of young children (7 to 11 years old), information could be obtained without difficulty since we allowed the child enough time and the use of his (her) own words.

Headache in schoolchildren: agreement between different sources of information

The level of agreement between different sources of information, i.e. questionnaires, interviews and diaries, was evaluated in a sample of 129 schoolchildren, 69 girls and 60 boys, ranging in age from 7 to 17 years. Headache diagnoses and headache features showed high agreement between questionnaires and subsequent interviews. The concordance between questionnaires and interviews for headache diagnoses increased, and the number of unclassified headaches decreased, when the International Headache Society (IHS) duration criterion was excluded. When comparing headache frequency reported in questionnaires and interviews with diary recordings, the agreement was low and the frequency higher in the diaries. Overall, the agreement between questionnaires, interviews and diaries was not related to age or gender. The questionnaire may serve as a valid source of information in studies of headache in schoolchildren. Prospective recordings in diaries provide additional information, in particular of low-intensity headache. In children, the IHS duration criterion should be modified or excluded.

Behavioral treatment of migraine in children and adolescents

Behavioral interventions, particularly biofeedback and relaxation therapy, have demonstrated their effectiveness in the treatment of both adults and older children with migraine in controlled trials. The physiological basis for their effectiveness is unclear, but data from one trial suggest that levels of plasma beta-endorphin can be altered by relaxation and biofeedback therapies. The data supporting the effectiveness of behavioral therapies are less clear-cut in children than in adults, but that is also true for the data supporting medical treatment. This is due in part to methodological issues, especially the lack of a specific test for migraine, which has hampered research and helped lead to an inappropriate de-emphasis on care for childhood headache. In addition, migraine headaches in children are often briefer and have a higher rate of spontaneous remission than those experienced by adults, making it difficult to separate effective from ineffective treatments. While it is widely believed that stress is a major factor in childhood migraine, well-designed studies have had difficulty developing data to support this viewpoint. Many clinicians utilize 'confident reassurance', reassuring the family that the child is not seriously ill, in the belief that having migraine headaches can be stressful. They also modify behaviors that are believed to trigger migraine headaches, such as poor sleep habits or irregular meal times. Relaxation therapies use techniques such as progressive relaxation, self-hypnosis, and guided imagery. Several studies have found relaxation therapies to be as effective, or more effective, in reducing the frequency of migraine headaches than modest doses of a beta-blockade medication, although one study found relaxation therapy to be no more effective than a control program. Several studies have demonstrated that these therapies can be taught to children in a low cost but effective manner. Biofeedback therapies commonly use an apparatus to demonstrate a physiological effect. Most commonly in pediatrics, children are taught to raise the temperature of one of their fingers. This can be done with or without a thermometer. Several groups have shown that these techniques can be taught to children and that their use is associated with fewer and briefer migraine headaches. People who experience migraines can also experience episodic headaches throughout life. An important consideration is preparing children to deal with future headaches, allowing them to feel in control of their health. Behavioral therapies have the potential to do this, giving the child access to a technique that can be easily resumed without a medical visit or prescription.

Comorbidity of other pains in schoolchildren with migraine or nonmigrainous headache

OBJECTIVE

To compare the occurrence of pain other than headache in prepubertal children with migraine and those with nonmigrainous headache.

STUDY DESIGN

An unselected population-based prospective follow-up study on the occurrence of headache in school-aged children was carried out in 1290 children aged 8 to 9 years. The children (n = 725) who reported headache during the preceding 6 months were sent a more detailed questionnaire concerning the occurrence of pain other than headaches; 622 children (86%) returned an acceptably completed second questionnaire. Of them, 53 (8.5%) had migraine. Nonmigrainous headache was found in 460 children (74%).

RESULTS

Children with migraine reported neck-shoulder pain, abdominal pain, back pain, and otalgia significantly more often than those with nonmigrainous headache. The median of the sum of other pains in children with migraine was significantly higher than that in children with nonmigrainous headache. The sum of other pains correlated positively with the frequency of nonmigrainous headache episodes (r =.40; 95% CI.31-.47), but there was no correlation between the sum of other pains and frequency of migraine attacks (r = -0.09; 95% CI -0.36-0.20).

CONCLUSION

Children with migraine are more likely to report types of pain other than headaches, regardless of the frequency of attacks. Children with frequent nonmigrainous headaches also report higher frequencies of other types of pain.

Migraine without aura and migrainous disorder in children; International Headache Society (IHS) and revised IHS criteria

The widely used criteria of the IHS to define migraine without aura in children are highly specific but show poor sensitivity, with a large percentage of headaches being classified as migrainous disorder (MD). The objective of this study was to assess how many headache patients in a series of children met the diagnostic criteria of the IHS for migraine without aura or MD and to determine the changes required to convert the greatest number of MD into migraine without aura, without affecting classification of the remaining headache types. A prospective study was undertaken of 131 patients under 15 years old referred to our centre for headache. Patients were classified according to the IHS criteria and according to a modification of these criteria consisting of: (1) reduction of minimum time required for classification into migraine without aura from 2 h to 1 h; (2) acceptance of bifrontal location in addition to hemicranial; (3) acceptance of either phonophobia or photophobia as valid criteria instead of requiring presence of both. Using the IHS criteria, 51 (39%) children were diagnosed as having migraine without aura and 26 (20%) as having MD. According to our revised IHS criteria, 68 (52%) were diagnosed as migraine without aura and nine (7%) as MD. When the three modified criteria were applied, three tension headaches and one unclassifiable headache changed category. When only reduced duration and bifrontal location were applied, none of the headaches other than MD changed category. Application of two modifications to the IHS criteria--reduction in duration of headache to 1 h and acceptance of bifrontal location--increased sensitivity without reducing specificity in classifying migraine without aura in children.

Migraine and headache in childhood and adolescence

Headache is one of the most common physical complaints of children and adults. The authors have provided definitions of headache, a classification system, diagnostic evaluations appropriate for children, and treatment options for patients with acute and chronic headache. Also, this article has emphasized the importance of diagnosing and treating migraine headache, a painful malady that is extensively underestimated and misdiagnosed in the pediatric population and one that can be treated acutely and when appropriate prophylactically with great success. Lack of a specific biologic marker, specific investigation, or brain imaging reduce these clinical entities too often to a psychological illness. Nonpharmacologic treatments are pivotal to manage chronic headaches. Migraine therapy, if administered early and through the appropriate route, could provide important and rapid relief.

Antecedents, concomitants, and consequences of pediatric headache: confirmatory construct validation of two parent-report scales

The aim of the study presented is to examine the psychometric properties of two parent-report scales for the assessment of environmental factors in pediatric headache, namely, the Children's Headache Assessment Scale (CHAS) and the Illness Behavior Encouragement Scale (IBES). Data were gathered in a sample of 160 parents of children suffering from headaches regularly. The internal structure of both scales is investigated by means of confirmatory factor analysis. The internal consistency of the resulting subscales is explored and data on the convergent validity and on the relationship with demographics are presented. Both the CHAS and the IBES appear to be promising assessment tools in a behavioral approach to pediatric headache.