Injury to ascending aorta by partial-occlusion clamp during aorta-coronary bypass
The Journal of Thoracic and Cardiovascular Surgery
|February 1, 1977
Insights
Prolonged hypertension can weaken the ascending aorta, leading to intimal injury during surgery. This can result in various aortic dissections and aneurysms, requiring careful management.
Area of Science:
- Cardiovascular Surgery
- Vascular Biology
- Hypertension Research
Background:
- Prolonged, poorly controlled hypertension is a significant risk factor for aortic wall disease.
- The proximal ascending aorta is particularly susceptible to injury under hypertensive conditions.
Observation:
- Clamp compression during surgical procedures can cause intimal injury in patients with pre-existing aortic disease.
- This injury can manifest in several ways, including intimal tears, delayed dissections, and intraoperative dissections.
Findings:
- Hypertension-induced aortic disease predisposes to intimal injury.
- Surgical clamp compression can trigger a spectrum of aortic pathologies: intimal tears with aneurysm formation, delayed acute dissecting aneurysms, and intraoperative acute dissecting aneurysms.
Implications:
- Understanding these risks is crucial for managing patients with hypertension undergoing aortic procedures.
- Surgical techniques and patient selection must consider the potential for clamp-induced aortic injury.
- Early recognition and management of these aortic complications are vital for patient outcomes.
Abstract:
Disease of the proximal ascending aortic wall from prolonged, poorly controlled hypertension predisposed to intimal injury after clamp compression. This creates a spectrum of problems: (1) intimal tear with late formation of a localized aneurysm, (2) delayed acute dissecting aneurysm, and (3) intraoperative acute dissecting aneurysm. Principles of management are discussed.
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