Subarachnoid Hemorrhage

More headaches

Step 1: View clinicals

A 26 year old man presents with a persistent, severe, throbbing occipital headache for 3 days and fever for 2 days. He was woken up by the headache. He is otherwise asymptomatic and has never experienced a similar headache before. His medical, family and drug histories are completely unremarkable. A full blood count is found to be normal.

Step 2: Order all relevant investigations

CT Brain (non contrast)

The CT scan appears normal, with no obvious mass lesions or features suggestive of intraventricular or subarachnoid haemorrhage.

Coagulation screen

INR: 1.0 (normal) APTT: 28s (normal) TT: 12s (normal)

Lumbar puncture

Appearance: uniformly blood stained Spectrophotometry: xanthrochromia noted Microscopy: Field full of RBC / hpf Protein: 42 mg/dl Glucose: 70 mg/dl (RBS: 120 mg/dl) Gram stain: negative

CT angiogram brain

An intracranial aneurysm is noted in the region of the anterior communicating artery. No other abnormalities are noted.

Step 3: Select appropriate management

IV Antibiotics stat
Endovascular treatment

Score: ★★☆