Emergency trauma angiography: accuracy, safety, and pitfalls

Area of Science:

• Radiology
• Vascular Surgery
• Trauma Care

Background:

• Suspected arterial trauma requires accurate diagnostic methods to guide surgical intervention.
• Traditional diagnostic approaches may have limitations in evaluating complex trauma cases.

Purpose of the Study:

• To evaluate the accuracy, safety, and limitations of trauma angiography in diagnosing arterial injuries.
• To assess the utility of trauma angiography in reducing unnecessary surgical explorations.

Main Methods:

• Retrospective review of 280 arteriograms performed for suspected arterial trauma.
• Comparison of angiographic findings with surgical outcomes and clinical courses.
• Analysis of technical factors affecting study quality and diagnostic accuracy.

Main Results:

• Trauma angiography demonstrated high accuracy: 98.3% sensitivity, 98.5% specificity, 95.0% positive predictive value, and 99.5% negative predictive value.
• 73% of patients avoided surgical exploration due to negative or non-significant angiographic findings.
• Procedure-related morbidity was low (5%), with all complications being minor.
• 16% of studies were technically compromised by factors like poor vessel opacification and film quality.

Conclusions:

• Emergency trauma angiography is a safe and accurate imaging modality for suspected arterial trauma.
• It effectively differentiates patients requiring vascular intervention from those who can be managed non-operatively.
• Optimizing imaging techniques and understanding limitations can enhance diagnostic yield.