Radiographic and Clinical Predictors of Therapeutic Pelvic Angiography

Area of Science:

• Radiology
• Trauma Surgery
• Emergency Medicine

Background:

• Pelvic fractures frequently cause life-threatening hemorrhage.
• Computed tomography (CT) is crucial for diagnosing pelvic fractures and associated bleeding.
• Identifying predictors for intervention is key in managing these complex injuries.

Purpose of the Study:

• To identify radiographic and clinical predictors of therapeutic angiography in patients with blunt pelvic fractures.
• To determine the optimal threshold for CT-identified arterial blush density predicting the need for intervention.

Main Methods:

• Retrospective review of 177 patients with blunt pelvic fractures undergoing CT and angiography over 6 years.
• Radiologist assessment of CT scans for hemorrhage predictors, including arterial blush density.
• Multivariable logistic regression to identify independent predictors of therapeutic angiography.

Main Results:

• 42% of patients required therapeutic angiography (TA).
• TA patients had higher injury burden and transfusion needs.
• Arterial blush density ≥250 HU and pre-angiography transfusion requirements independently predicted TA.

Conclusions:

• CT imaging is vital for assessing hemorrhage in blunt pelvic fractures.
• Early angiography is recommended for patients with CT findings of arterial blush ≥250 HU and requiring multiple transfusions.
• These findings aid in timely intervention for severe pelvic trauma.