Specific cognitive and psychological alterations are more strongly linked to increased migraine disability than chronic migraine diagnosis.

Introduction: The efficiency of The International Classification of Headache Disorders (ICHD-3) in reflecting patients' disability has recently been questioned. This prompts consideration that clinical features beyond pain may more accurately indicate the extent of underlying brain impairment than the mere frequency of headache days. Important cognitive dysfunctions and psychological impairment have been reported in burdensome cases of migraine, and the presence of these alterations has been associated with biological changes in the nervous system.

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.

[Seasonal pattern in hospital admissions due to bipolar disorder in Santa María, Córdoba, Argentina].

Introduction: The purpose of this research is to establish if there is a seasonal pattern in hospitalizations due to affective episodes of bipolar disorder in Hospital Colonia Santa María, Córdoba, Argentina, between 2000-2003.

Materials And Methods: The affective episodes considered were those which required patient hospitalization with bipolar disorder diagnosis (ICD-10). Medical histories were analyzed subsequently, according to the DSM-IV criteria.