Current pain and headache reports
-
The nosological boundaries between cluster headache and migraine are sometimes ill-defined. Although the two disorders are distinct clinical entities, patients sometimes present with clinical scenarios having characteristics of both headache types, but either do not fully meet International Classification of Headache Disorders, Second Edition diagnostic criteria for either disorder or have sufficient symptoms and signs to allow both diagnoses to be present. These occasions provide diagnostic challenges and include what is variously described as migraine-cluster, cyclical migraine, clustering episodes of migraine, cluster with aura, or atypical cluster without autonomic symptoms or severe pain. Patients with symptoms overlapping cluster headache and migraine likely reflect the inherent clinical variability in each of these two disorders, rather than distinct diagnostic entities in their own right.
-
Classified as a trigeminal autonomic cephalalgia, cluster headache is characterized by recurrent short-lived excruciating pain attacks, which are concurrent with autonomic signs. These clinical features have led to the assumption that cluster headache's pathophysiology involves central nervous system structures, including the hypothalamus. ⋯ Using a variety of neuro-imaging techniques (functional , biochemical , and structural ) in patients with cluster headache, we are making improvements in our understanding of the role of the brain in this disorder. This article summarizes neuroimaging findings in cluster headache patients, describing neuronal changes that occur during attacks and remission, as well as during hypothalamic stimulation.
-
Cluster headache has long been considered a predominantly male disorder, with much of our knowledge based on studies of men. However, it has become increasingly more recognized in women. Although there are many similarities between men and women in the expression of the disorder, studies over the years have revealed gender differences. This article reviews epidemiologic, clinical, hormonal, and familial differences between male and female cluster patients, examines how they may affect treatment, and suggests studies that may give us a better understanding of the disorder.
-
This article discusses what is known of and written regarding the possible association of cluster headache and head trauma. There is additional discussion of conditions other than direct head trauma that are also seen in association with cluster headache. These conditions bring into question the concept of primary versus secondary cluster headache and raise the possible need to expand the category of secondary cluster headache. With increasing knowledge of the pathophysiology of cluster headache, the potentially causative role of head trauma in the development of cluster headache may become better defined.
-
Curr Pain Headache Rep · Apr 2007
ReviewCluster headache: a review of online resources for patients and clinicians.
Technology has revolutionized the ability of both patients and physicians to find and retrieve medical information. In particular, the Internet has become an increasingly important source of information for patients and physicians in all medical fields, including headache. Although these resources may be readily available, it is not certain that those who would benefit most from these websites are aware of their existence or how to differentiate if the website is reputable. This article briefly reviews how patients and physicians can differentiate which sites provide legitimate and reputable information and then focuses on where to find online information on cluster headache.