Electrocardiographic changes in migraine

[1] Disturbance of autonomic nervous system (ANS) may affect atrial and ventricular repolarization of heart. [...]disturbance in the autonomic innervation of heart in patients with migraine may also result in possible electrocardiographic (ECG) manifestations. Furthermore, this study aims to give some information about the cardiovascular status and also, the ECG changes seen in patients of migraine, the knowledge of which may be applied by a physician while prescribing cardiac drugs to migraine patients. MATERIALS AND METHODS In this study, data were collected from 30 migraine patients diagnosed according to Headache Classification Committee of the International Headache Society 2004,[3] in the age group of 25-55 years, attending neurology outpatient department. 30 age and gender-matched controls were selected. [7] Furthermore, manipulation of the ANS in experiments demonstrated the influence of imbalanced sympathetic activity on the heterogeneity of repolarization in the myocardium, resulting in QT interval prolongation.40,14 Further studies have shown that a prolonged QT interval and P wave dispersion in the pain-free period can be predictors of atrial and ventricular arrhythmias.