Introduction: Cerebral venous thrombosis (CVT) is a rare complication of spinal anesthesia. The diagnosis is difficult when it occurs by isolated headache, following post spinal puncture headache (PSPH). We report a case of cerebral venous thrombosis complicating PSPH, following a spinal anesthesia. Observation: A 23-year-old man was admitted to the emergency room for PSPH appeared 6 hours after a spinal aesthesia for removal of osteosynthesis equipment from the right tibial plateau. The headache was fronto-occipital, relieved by lying down. Six days later, headache became permanent, not relieved by morphine, associated with vomiting. The neurological examination was normal. Brain magnetic resonance Magnetic venography showed superior sagittal sinus and right transverse sinus thrombosis. After administration of low molecular weight heparin at curative dose, and warfarin under INR control, the evolution was marked by a rapid regression of headaches on the same day. After a 1-year setback, the patient was asymptomatic...............
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