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Updated: Jun 18, 2026

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
Published on: June 18, 2021
[Consequences of a nonrecognized subarachnoid hemorrhage]
1Institut für Diagnostische und Interventionelle Neuroradiologie, Medizinische Hochschule Hannover, Deutschland. h575522becker@t-online.de
A severe headache and seizure were initially misdiagnosed, leading to delayed treatment for subarachnoid hemorrhage caused by an anterior communicating artery aneurysm. This case highlights the critical need for accurate diagnosis in acute neurological events.
Area of Science:
- Neurology
- Neurosurgery
- Medical Diagnostics
Background:
- A 42-year-old woman presented with acute severe headache, sickness, and seizure.
- Initial computed tomography (CT) scan was normal, and the patient was discharged after symptomatic treatment.
Observation:
- Ten days later, a second event with similar symptoms occurred.
- Subarachnoid hemorrhage with left frontal lobe intracerebral bleeding was diagnosed, suspicious for an anterior communicating artery aneurysm.
Findings:
- The aneurysm was treated with coiling.
- External cerebrospinal fluid (CSF) drainage was required due to hydrocephalus and temporary CSF leakage.
Implications:
- The case led to a medical liability claim due to misdiagnosis by the initial hospital.
- The fact-finding board validated the patient's claim, recommending an extrajudicial settlement.
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