期刊
AMERICAN JOURNAL OF EMERGENCY MEDICINE
卷 58, 期 -, 页码 -出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.ajem.2022.05.037
关键词
Subarachnoid hemorrhage; Headache; Lumbar puncture; CTA; Neurology; Neurosurgery
Acute headache is a common chief complaint in the emergency department which may have serious underlying conditions like subarachnoid hemorrhage (SAH). With advancements in computed tomography (CT), CT angiography is now being used to rule out SAH.
Acute headache is a common emergency department (ED) chief complaint that usually has a benign course. Rare etiologies such as subarachnoid hemorrhage (SAH) can lead to extensive disability or even death. If suspected, SAH requires an intricate and intensive diagnostic investigation. Classic teaching recommends computed tomography head imaging without contrast which, if negative, is followed by lumbar puncture (LP) to rule out SAH. With improvements in computed tomography (CT), practice patterns have begun to adjust to allow computed tomography angiography (CTA) to rule out SAH. This case report describes a 23-year-old woman presenting with headache, neck, and back pain. Her initial CT head and CTA head imaging was negative for SAH. However, 3 days later upon re-presentation to the ED with the same symptoms, an LP was positive for increasing red blood cell count in subsequent tubes. She was transferred to a facility with interventional neurology capabilities where digital subtraction angiography showed a left anterior choroidal saccular aneurysm for which she underwent coiling. Given recent changes in SAH clinical practice guidelines, this case highlights the importance of understanding the current limitations of CT imaging, understanding the risks and benefits of both CT and LP, and always maintaining a high suspicion for especially lethal and disabling conditions such as SAH. Published by Elsevier Inc.
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