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Published on: December 16, 2021
Posttraumatic pseudoaneurysm of the intracavernous internal carotid artery presenting with massive epistaxis
Patricia S Fontela1, Donatella Tampieri, Jeffrey D Atkinson
1Division of Pediatric Critical Care, Montreal Children's Hospital, Montreal, Canada.
Insights
Massive epistaxis can be a delayed complication of head injuries, caused by pseudoaneurysms in the internal carotid artery. Prompt diagnosis and endovascular treatment are crucial for managing this potentially lethal condition.
Area of Science:
- Vascular Surgery
- Neurotrauma
- Endovascular Interventions
Background:
- Posttraumatic pseudoaneurysms of the intracavernous internal carotid artery are rare but serious complications.
- Massive epistaxis can be the presenting symptom, often with a delayed onset after head trauma.
Observation:
- A pediatric patient developed massive epistaxis 12 days post-motor vehicle accident due to an intracavernous internal carotid artery pseudoaneurysm.
- The pseudoaneurysm had dissected into the sphenoid sinus, as confirmed by angiography.
Findings:
- Endovascular stent and coil occlusion successfully treated the pseudoaneurysm.
- The patient recovered without ischemic or thromboembolic complications.
Implications:
- This case highlights the importance of considering intracavernous carotid artery pseudoaneurysms in patients with head injuries and epistaxis.
- Early diagnosis and intervention are critical to reduce the high mortality associated with this condition.
Objectives:
To report a case of posttraumatic pseudoaneurysm of the intracavernous internal carotid artery presenting with massive epistaxis and to discuss its pathophysiology and management.
Design:
Case report and literature review.
Setting:
Pediatric intensive care unit in a tertiary-care center.
Patients And Results:
Twelve days after a motor vehicle accident causing a head injury and facial fractures, this patient presented with massive epistaxis due to a pseudoaneurysm of the intracavernous internal carotid artery . Nasal packing was performed and subsequent angiography demonstrated the vascular lesion that had dissected into the sphenoid sinus. Endovascular stent and coil occlusion of the vascular lesion was performed, and the patient's condition improved without any ischemic or thromboembolic sequelae.
Conclusion:
Posttraumatic aneurysms of the intracavernous internal carotid artery can be associated with delayed and sometimes lethal massive epistaxis. This vascular lesion should be considered in patients with traumatic brain injury presenting with basal skull fractures in the region of the carotid canal or cavernous sinus and/or orbital fractures and compromise of the optical nerves. Knowledge of these risk factors and early diagnosis can minimize the high mortality risk.
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