aortic aneurysm
A localized enlargement of the aorta exceeding 150% of normal diameter, requiring precise description in surgical reports.
Full Definition
A pathological dilation of the aorta that exceeds 150% of the expected normal diameter for the patient's age and body size. Aortic aneurysms are classified by location (thoracic, abdominal, or thoracoabdominal) and morphology (fusiform or saccular). They represent a significant cardiovascular condition requiring surgical intervention when they reach specific size thresholds or become symptomatic. Editorial accuracy in describing aneurysm characteristics, measurements, and anatomical location is crucial in surgical documentation.
Usage
Usage note: Always specify aneurysm location and diameter when mentioned in clinical documentation.
In Context
- "The patient presented with a 5.5 cm infrarenal aortic aneurysm requiring elective surgical repair." — Surgical case report
- "Preoperative imaging revealed a thoracoabdominal aortic aneurysm extending from T6 to the aortic bifurcation." — Operative note