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Injuries of branches of the aortic arch
1Department of Surgery, University of Sydney, NSW.
Insights
Vascular trauma to major arteries like the carotid and subclavian is often caused by blunt force, frequently leading to significant associated injuries and high mortality rates.
Area of Science:
- Vascular Surgery
- Trauma Surgery
- Emergency Medicine
Background:
- Injuries to major arteries, including the carotid, subclavian, axillary, and vertebral arteries, represent a significant portion of vascular trauma cases.
- Understanding the mechanisms and outcomes of these injuries is crucial for improving patient management.
Purpose of the Study:
- To analyze the incidence, causes, clinical presentation, associated injuries, and outcomes of major arterial trauma.
- To identify key factors contributing to mortality in patients with these severe injuries.
Main Methods:
- Retrospective review of vascular trauma cases at Westmead Hospital between 1979 and 1986.
- Categorization of injuries by mechanism (penetrating vs. blunt trauma) and affected arteries.
Main Results:
- Major arterial injuries accounted for 19.5% of vascular trauma.
- Blunt trauma (61.5%) was more common than penetrating trauma (38.5%).
- High rates of associated head (46%) and brachial plexus (31%) injuries were observed, with an overall mortality of 46%.
Conclusions:
- Vascular trauma to these major arteries is associated with high morbidity and mortality, often due to associated head injuries.
- Prompt recognition of vascular injury, indicated by hematoma or hemorrhage, is critical.
- Stroke is a potential complication, as seen in a case of carotid artery injury.
Abstract:
Injuries to the carotid, subclavian, axillary and vertebral arteries have comprised 19.5% of vascular trauma seen at Westmead Hospital during the period 1979-86. The cause of injury was penetrating trauma in 38.5% of cases, and blunt trauma, due mainly to motor vehicle or motor bike accident, in 61.5% of cases. In most cases (77%) the vascular injury was apparent because of large and/or expanding haematoma or overt haemorrhage. There was a large incidence of associated injury with head injury in 46% and brachial plexus injury in 31%. The mortality was high (46%), with most patients dying from the associated head injury, but one patient died from stroke after presenting with a neurological deficit associated with a carotid injury.