Delayed headache after COVID-19 vaccination: a red flag for vaccine induced cerebral venous thrombosis

ConclusionDelayed onset of headache following an adenovirus vector-based COVID-19 vaccine is associated with development of CVT. Patients with new-onset headache, 1 week after vaccination with an adenovirus vector-based vaccine, should receive a thorough clinical evaluation and CVT must be ruled out.
Source: The Journal of Headache and Pain - Category: Neurology Source Type: research