Association between time-to-presentation and clinical outcome in patients with subarachnoid hemorrhage: an observational study.

BACKGROUND: Headache is the most common presenting symptom of subarachnoid hemorrhage (SAH), ranging from mild headache to the "worst headache of my life". As headache is often non-specific, patients may not seek immediate medical attention, though prompt medical and surgical management is expected to improve clinical outcomes. In this study, we explore the independent association between duration from onset of symptoms to presentation at an …