What are the mortality rates for subarachnoid hemorrhage (SAH)?

Updated: Dec 07, 2018
  • Author: Tibor Becske, MD; Chief Editor: Helmi L Lutsep, MD  more...
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Answer

Although mortality rates of SAH have decreased in the past 3 decades, it remains a devastating neurologic problem. An estimated 10-15% of patients die before reaching the hospital. Approximately 25% of patients die within 24 hours, with or without medical attention. Hospitalized patients have an average mortality rate of 40% in the first month. About half of affected individuals die in the first 6 months. Rebleeding, a major complication, carries a mortality rate of 51-80%.


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