Rashmi B . Halker , Eric V . Hastriter and David W . Dodick Approach to a Challenging Problem Chronic Daily Headache

Cluster headache: diagnosis and treatment.

Cluster headache is a rare yet exquisitely painful primary headache disorder occurring in either episodic or chronic patterns. The unique feature of cluster headache is the distinctive circadian and circannual periodicity in the episodic forms. The attacks are stereotypic--they are of extreme intensity and short duration, occur unilaterally, and are associated with robust signs and symptoms of ...

Management of chronic daily headache: challenges in clinical practice.

Chronic daily headache (CHD) refers to a category of headache disorders that are characterized by headaches occurring on more than 15 days per month. This category is subdivided into long- and short-duration (>4 or <4 hours) CDH disorders based on the duration of individual headache attacks. Examples of long-duration CDH include transformed migraine (TM), chronic migraine (CM), new daily persis...

The Sphenopalatine Ganglion: Anatomy, Pathophysiology, and Therapeutic Targeting in Headache.

The sphenopalatine ganglion (SPG) has attracted the interest of practitioners treating head and face pain for over a century because of its anatomical connections and role in the trigemino-autonomic reflex. In this review, we discuss the anatomy of the SPG, as well as what is known about its role in the pathophysiology of headache disorders, including cluster headache and migraine. We then addr...

21st Century Prevention and Management of Migraine Headaches

Thunderclap headache.

The aim is to review the background underlying the debate related to the alternative nomenclatures for and the most appropriate diagnostic evaluation of patients with thunderclap headache. The clinical profile and differential diagnosis of thunderclap headache is described, and a nosological framework and diagnostic approach to this group of patients is proposed.