Pan CT for blunt polytrauma - Is there a need for more selective indications?

Area of Science:

• Emergency Medicine
• Radiology
• Trauma Surgery

Background:

• Pan computed tomography (CT) is a standard diagnostic tool for blunt polytrauma patients.
• Previous evaluations in our unit demonstrated judicious use of Pan CT.
• Increasing availability of CT raises concerns about potential over-utilization or "indication creep".

Purpose of the Study:

• To assess whether Pan CT is being over-utilized within our trauma service based on local imaging criteria.
• To evaluate the impact of Pan CT findings on patient management in blunt polytrauma.

Main Methods:

• A retrospective review of 301 Pan CT scans conducted over a 5-year period (January 2017 - December 2021) in Pietermaritzburg, South Africa.
• Analysis of scan data to identify injuries and their influence on patient management decisions.

Main Results:

• Of 301 Pan CT scans, 269 (89.4%) led to interventions, including scans of the brain, cervical spine, chest, and abdomen.
• Only 32 scans (10.6%) did not directly influence management, but many were clinically important for ruling out injury in unreliable patients.
• Fewer than 5% of scans (15 out of 301) were deemed not clinically helpful.

Conclusions:

• "Indication creep" has not occurred in our trauma service, with continued judicious use of Pan CT.
• The study supports the appropriate utilization of Pan CT in blunt polytrauma evaluation.
• Less than 5% of patients undergoing Pan CT may be candidates for alternative imaging modalities.