Abstract
Background
Traumatic distal anterior cerebral artery (dACA) aneurysm is rare and can be easily neglected and misdiagnosed in patients with trauma. The aim of this study was to explore the radiologic characteristics of and therapeutic strategies for traumatic dACA aneurysm and to improve our understanding of unusual complications after trauma.
Methods
The clinical data of nine cases of traumatic dACA aneurysm from our neurosurgical department from July 1, 2010, to July 1, 2018, were retrospectively analysed.
Results
All 9 patients had a history of brain trauma. The initial computed tomography scan immediately after trauma showed subarachnoid haemorrhage in 8 cases. Among these cases, delayed intracranial haemorrhage occurred in 7 cases. The average interval between injury and diagnosis was 13.67 ± 9.43 days. All 9 cases were confirmed as traumatic dACA aneurysm by computed tomography angiography (CTA) and/or digital subtraction angiography. According to Lehecka’s classification system, traumatic dACA aneurysm located in the A3 and A4 segment was found in 3 and 6 cases, respectively. Surgical treatment was performed in 8 cases, including neck clipping, with or without wrapping in 3 cases, trapping in 4 cases, aneurysm excision and suturing in 1 case and conservative treatment in 1 case. Three patients required a ventriculoperitoneal shunt due to severe hydrocephalus. According to the Glasgow Outcome Scale scoring system, good recovery was achieved in 4 cases, moderate disability in 2 cases, severe disability in 1 case, and death in 2 cases.
Conclusion
Traumatic dACA aneurysm is a rare complication of brain trauma. Delayed intracranial haemorrhage and the sudden deterioration of neurologic function were the typical characteristics in patients with traumatic dACA aneurysm. CTA is the first-line screening modality for patients who present with intracerebral haemorrhage in the corpus callosum after trauma, particularly for patients who are older, in a poorer or critical condition. When the aneurysm is located in the A4 segment or involves a small branch, surgical trapping is the preferred definitive therapy to prevent further growth and disastrous bleeding. Early diagnosis and prompt treatment could help to improve clinical outcomes.
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Change history
13 December 2019
Incorrect family name of Dongsheng Guo.
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Acknowledgements
We would like to acknowledge the help of all the staff involved in this study taking part in the medical record collection and review.
Funding
This study was supported by a grant from the National Natural Science Foundation of China No.81671154 to Dr. He.
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This study was approved by the institutional review board and ethics committee of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, HuBei province, China. And written informed consent was accepted by all the patients or their guardians.
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This article is part of the Topical Collection on Vascular Neurosurgery - Aneurysm
The original version of this article was revised. The name of Dongsheng Guo was incorrectly captured and is now corrected.
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He, Y., Wang, L., Ou, Y. et al. Surgical treatment of traumatic distal anterior cerebral artery aneurysm: a report of nine cases from a single centre. Acta Neurochir 162, 523–529 (2020). https://doi.org/10.1007/s00701-019-04121-x
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DOI: https://doi.org/10.1007/s00701-019-04121-x