Delayed headache after COVID-19 vaccination: a red flag for vaccine induced cerebral venous thrombosis.
David García-AzorínThien Phu DoAndreas R GantenbeinJakob Møller HansenMarcio Nattan P SouzaMark ObermannHeiko PohlChristoph J SchankinHenrik Winther SchytzAlexandra SinclairGuus G SchoonmanEspen Saxhaug KristoffersenPublished in: The journal of headache and pain (2021)
Delayed 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.