PSG and Neuroendocrine Hormones in Subjective Cognitive Impaired Patients With Transformed Migraine

PSG was carried out for 41 patients with subjective cognitive impairment and 41 age and sex-matched controls. PSG with standard EEG montage that includes bilateral EOG and four EEG leads were used. A single attended overnight PSG study was performed at the Clinical Neurophysiology Unit of Mansoura University Hospitals. Patients were studied in a quiet, darkened room with no medications were used to induce sleep. All participants underwent one night of laboratory-based PSG.