Subarachnoid Hemorrhage

Bleeding between brain membranes

1Overview

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What is this Condition?

Subarachnoid hemorrhage (SAH) is bleeding into the space between the arachnoid membrane and pia mater. The most common cause is rupture of a brain aneurysm. It begins with sudden, severe headache described as 'the worst headache of my life' - like a thunderclap. It is a life-threatening condition requiring emergency intervention.

Diagnosis Methods

Emergency brain CT detects bleeding. If CT is negative, lumbar puncture is performed. CT or MR angiography is done to investigate aneurysm.

Treatment Methods

If aneurysm is present, it is treated with clipping or endovascular coiling. Intensive care monitoring and vasospasm prevention therapy are applied.

References

  1. Greenberg MS. Handbook of Neurosurgery. 10th ed. Thieme; 2023.
  2. Winn HR, ed. Youmans and Winn Neurological Surgery. 6th ed. Elsevier; 2011.
  3. Osborn AG, Hedlund GL, Salzman KL. Osborn's Brain: Imaging, Pathology, and Anatomy. 2nd ed. Elsevier; 2018.

This content is based on academic sources and is for general information only; individual assessment requires a medical examination.

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