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Journal of Korean Neurosurgical Society > Volume 50(1); 2011 > Article
Journal of Korean Neurosurgical Society 2011;50(1): 6-10.
doi: https://doi.org/10.3340/jkns.2011.50.1.6
Clinical Features of Acute Subdural Hematomas Caused by Ruptured Intracranial Aneurysms.
Se Yang Oh, Jeong Taik Kwon, Yong Sook Park, Taek Kyun Nam, Seung Won Park, Sung Nam Hwang
1Department of Neurosurgery, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.
2Department of Neurosurgery, College of Medicine, Chung-Ang University, Seoul, Korea. jtkwon@cau.ac.kr
Spontaneous acute subdural hematomas (aSDH) secondary to ruptured intracranial aneurysms are rarely reported. This report reviews the clinical features, diagnostic modalities, treatments, and outcomes of this unusual and often fatal condition.
We performed a database search for all cases of intracranial aneurysms treated at our hospital between 2005 and 2010. Patients with ruptured intracranial aneurysms who presented with aSDH on initial computed tomography (CT) were selected for inclusion. The clinical conditions, radiologic findings, treatments, and outcomes were assessed.
A total of 551 patients were treated for ruptured intracranial aneurysms during the review period. We selected 23 patients (4.2%) who presented with spontaneous aSDH on initial CT. Ruptured aneurysms were detected on initial 3D-CT angiography in all cases. All ruptured aneurysms were located in the anterior portion of the circle of Willis. The World Federation of Neurosurgical Societies grade on admission was V in 17 cases (73.9%). Immediate decompressive craniotomy was performed 22 cases (95.7%). Obliteration of the ruptured aneurysm was achieved in all cases. The Glasgow outcome scales for the cases were good recovery in 5 cases (21.7%), moderate disability to vegetative in 7 cases (30.4%), and death in 11 cases (47.8%).
Spontaneous aSDH caused by a ruptured intracranial aneurysm is rare pattern of aneurysmal subarachnoid hemorrhage. For early detection of aneurysm, 3D-CT angiography is useful. Early decompression with obliteration of the aneurysm is recommended. Outcomes were correlated with the clinical grade and CT findings on admission.
Key Words: Acute subdural hematoma; Subarachnoid hemorrhage; Intracranial aneurysm; CT angiography
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