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A Murine Model of Subarachnoid Hemorrhage
Published on: November 21, 2013
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Correlation between hyperhemoglobinemia and pseudosubarachnoid hemorrhage.
Hongmei Li1, Abudusaimaiti Ayinuer1, Jiankang Huang2
1Department of Neurology, Kashgar Prefecture Second People's Hospital, Kashgar, Xinjiang Uygur Autonomous Region, China.
Clinical Imaging
|November 13, 2019
Summary
High hemoglobin levels may cause pseudo-subarachnoid hemorrhage (SAH), a condition mimicking actual bleeding on CT scans. This study found a significant link between hyperhemoglobinemia and pseudo-SAH, urging clinical awareness.
Area of Science:
- Neurology
- Radiology
- Hematology
Background:
- Subarachnoid hemorrhage (SAH) is a critical cerebrovascular event.
- Pseudo-SAH presents similarly to SAH on head CT but without actual bleeding.
- Clinical observations suggested a link between hyperhemoglobinemia and pseudo-SAH.
Purpose of the Study:
- To investigate the association between hyperhemoglobinemia and pseudo-SAH.
- To explore the underlying mechanisms contributing to pseudo-SAH in hyperhemoglobinemic patients.
Main Methods:
- Retrospective data collection of hyperhemoglobinemia patients with brain CT scans.
- Comparison of pseudo-SAH incidence between hyperhemoglobinemia and age-matched control groups.
- Statistical analyses including Spearman correlation and logistic regression.
Main Results:
- Pseudo-SAH incidence was significantly higher in the hyperhemoglobinemia group (12.5%) versus controls (1.6%).
- Higher hemoglobin levels (≥210 g/L) showed increased pseudo-SAH rates within the hyperhemoglobinemia group.
- A significant correlation was found between pseudo-SAH and hyperhemoglobinemia, but not gender, COPD, or smoking history.
Conclusions:
- Hyperhemoglobinemia may be a contributing factor to pseudo-SAH.
- Clinicians must differentiate pseudo-SAH from true SAH, especially in patients with elevated hemoglobin levels.
