Clinical Course and Recurrence in Transient Global Amnesia: A Study From the TEMPiS Telestroke Network.

Area of Science:

• Neurology
• Clinical Medicine
• Epidemiology

Background:

• Transient global amnesia (TGA) is clinically defined but poorly understood pathogenetically.
• Risk factors for recurrent TGA episodes require further investigation.

Purpose of the Study:

• To investigate the clinical characteristics and risk factors for TGA recurrence.
• To identify demographic and clinical factors associated with TGA episodes and recurrences.

Main Methods:

• Retrospective analysis of 109 TGA patients from a German telestroke network and university stroke center.
• Data collection included demographics, clinical features, season, triggers, duration, concomitant conditions, and TGA recurrence via questionnaire.

Main Results:

• Arterial hypertension (60.6%) and elevated blood pressure (48.6%) were common in TGA patients.
• Migraine and hypothyroidism were associated with non-recurrent TGA, while atrial fibrillation was more frequent in patients with recurrent TGA.
• Approximately one-fifth of patients experienced TGA recurrence.

Conclusions:

• Arterial hypertension is a prevalent factor in TGA.
• Migraine and hypothyroidism may be protective against TGA recurrence, whereas atrial fibrillation is linked to increased recurrence.
• Understanding these factors can inform TGA management and prognosis.