Subarachnoid Hemorrhage During Injection of Cinopharm Vaccine Against Covid Disease 19; Case Report

Subarachnoid hemorrhage usually occurs in the context of ruptured cerebrovascular aneurysm. Cerebrovascular events are a rare complication of vaccination against Quid 19. In the present study, a case of subarachnoid hemorrhage was reported in a patient without a previous history, shortly after the injection of the Sinofarm vaccine.

A 76-year-old female patient with no previous history of disease with a complaint of sudden headache and nausea, 3 days after receiving the second dose of Covid 19 vaccine with Sinofarm vaccine, referred to the emergency department of a hospital in South Khorasan province. At the time of admission, the patient was fully conscious and the initial tests included blood cell counts and coagulation tests in the normal range. The patient was requested for further examination and for CTA for cerebral aneurysm.

After CTA, evidence of SAH was seen in the patient.

This study showed a potential link between cynopharm vaccine injection and the occurrence of subarachnoid hemorrhage. It is crucial to find the possible side effects of vaccines and to investigate their relationship.