High rates of (treated) hypothyroidism among chronic migraine patients consulting a specialized headache clinic: are we missing something?

Background: Roughly three percent of episodic migraine patients evolve into the most burdensome chronic form of this condition every year. While some of the determinants behind this transformation are well established, others are still ill defined. Hypothyroidism is a prevalent endocrinological disorder that can both produce a secondary headache or aggravate a pre-existing primary headache disorder such as migraine.

[Argentinean consensus guidelines on the use of monoclonal antibodies in patients with migraine].

Introduction: Migraine is a very prevalent disorder that is estimated to affect about 15% of adult subjects. Recently, the efficacy and safety of monoclonal antibodies that act on the calcitonin gene-related peptide pathway (MA-CGRP) has been evaluated in migraine. Several groups around the world have developed consensus guidelines about the use of monoclonal antibodies, however, in some regions is difficult to extrapolate the recommendations.

Prophylatic treatment of migraine and migraine clinical variants with topiramate: an update.

Migraine and migraine variants are common, chronic and incapacitating neurovascular disorders with a high impact on health resources. There is an extensive evidence base provided by double-blind, placebo-controlled trials showing that topiramate is a safe, effective and well tolerated drug in the management of migraine and its variants, being especially promising in the management of migraine-vertigo syndrome. Models both in the US and the UK have also shown that it offers a cost benefit when direct and indirect costs are evaluated, by reducing work loss, improving quality of life and reducing the use of increasingly scarce health resources.

SUNCT syndrome responding absolutely to steroids in two cases with different etiologies.

SUNCT is a syndrome of short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing. We are presenting now two cases absolutely responders to steroid therapy, one of them a SUNCT-like secondary to a prolactinoma and the other primary.

Plasma melatonin pattern in chronic and episodic headaches: evaluation during sleep and waking.

To look for a relationship between pineal function in chronic migraine (CM), cluster headache (CH) (during active and remission periods), chronic tension-type headache (CTTH) patients and controls during NREM sleep, REM sleep and waking, we performed serial sampling of plasma melatonin in the different sleep stages during the first half of the night, in order to avoid chronobiological interferences. Plasma melatonin levels did not show a normal curve either in the CTTH or in the CM patients and no significant differences between these groups were found in any of the sleep stages studied. Plasma melatonin values of CH patients during the cluster period showed an abnormal pattern.