In 1982, Mathew et al first used the term "chronic daily headache" (CDH) to describe headaches that occurred almost daily in adults. 1 Twelve years later, Holden et al published the first report on children with CDH. 2 Since then, there have been at least 21 reports globally. Cumulative knowledge suggests that CDH is not only a common chronic pain syndrome in children (the term will be used to include adolescents), but also a multi-faceted, and often complex one. The appreciation of the many aspects of CDH is pivotal to clinical research and management, and is the thrust of our review.
DEFINITIONS AND CLASSIFICATION: THE CONTINUING CONTROVERSY
BackgroundIn the almost 30 years since the original description, CDH continues to evoke passionate debate. Globally accepted criteria ABSTRACT: Chronic daily headache (CDH) is a multi-faceted, often complex pain syndrome in children and adolescents. Chronic daily headache may be primary or secondary. Chronic migraine and chronic tension-type are the most frequent subtypes. Chronic daily headache is co-morbid with adverse life events, anxiety and depressive disorders, possibly with other psychiatric disorders, other pain syndromes and sleep disorders; these conditions contribute to initiating and maintaining CDH. Hence, early management of episodic headache and treatment of associated conditions are crucial to prevention. There is evidence for the benefit of psychological therapies, principally relaxation and cognitive behavioral, and promising information on acupuncture for CDH. Data on drug treatment are based primarily on open label studies. The controversies surrounding CDH are discussed and proposals for improvement presented. The multifaceted nature of CDH makes it a good candidate for a multi-axial classification system. Such an approach should facilitate biopsychosocial management and enhance consistency in clinical research.RÉSUMÉ: La céphalée quotidienne chronique chez les enfants et les adolescents, un syndrome à multiples facettes. La céphalée quotidienne chronique (CQC) est un syndrome douloureux à multiples facettes qui est souvent complexe chez les enfants et les adolescents. La céphalée quotidienne chronique peut être primaire ou secondaire. La migraine chronique et la céphalée de tension chronique sont les sous-types les plus fréquents. La CQC est une comorbidité des incidents fâcheux de la vie, de l'anxiété et des troubles dépressifs, possiblement liée à d'autres troubles psychiatriques, syndromes douloureux et troubles du sommeil. Ces états contribuent à amorcer et à maintenir la CQC. Le traitement précoce de la céphalée épisodique et le traitement des comorbidités est donc crucial pour la prévention. Certaines données démontrent un bénéfice des psychothérapies, principalement de la relaxation et de la thérapie cognitivo-comportementale, et l'acuponcture pour le traitement de la CQC semble prometteuse. Les données sur le traitement médicamenteux sont basées principalement sur des études ouvertes. Nous discutons des controverses entourant la CQC et des mo...