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Injury Patterns in Resuscitated Non-Traumatic Cardiac Arrest Patients-A Comparative CT Analysis Between Automated
Simon Viniol1, Lennart Scholand1, Alexander König1
1Clinic of Diagnostic and Interventional Radiology, University Hospital Marburg, Philipps-University Marburg, Baldingerstrasse, 35043 Marburg, Germany.
Diagnostics (Basel, Switzerland)
|May 4, 2026
Summary
Automated chest compression devices can cause injuries. Band-based devices were linked to more liver lacerations and displaced rib fractures in out-of-hospital cardiac arrest patients compared to piston-based devices.
Area of Science:
- Emergency Medicine
- Radiology
- Cardiology
Background:
- Automated chest compression devices are used for patients with out-of-hospital cardiac arrest (OHCA).
- Understanding device-specific resuscitation-related injuries is crucial for patient safety.
- CT imaging provides detailed assessment of thoracic and abdominal injuries.
Purpose of the Study:
- To compare injury types and frequencies between band-based and piston-based automated chest compression devices.
- To analyze differences in resuscitation-related injuries in OHCA patients treated with mechanical devices.
Main Methods:
- Retrospective single-center study of 71 OHCA patients treated with mechanical chest compression devices.
- Analysis of whole-body CT scans to assess injuries, blinded to the device used.
- Comparison of injury patterns between band-based and piston-based device groups using statistical tests.
Main Results:
- Rib fractures were the most common injury (90.1%), with no significant difference in median number between groups.
- The band-based device group showed significantly higher frequencies of liver lacerations (15.6% vs. 0%) and displaced rib fractures (RR = 1.43).
- Groups were comparable in resuscitation duration and demographics, though the band-based group was older.
Conclusions:
- Band-based automated chest compression devices were associated with more liver lacerations and displaced rib fractures than piston-based devices in OHCA patients.
- Findings suggest device-specific injury profiles that warrant further investigation.
- These results are hypothesis-generating for future research on mechanical CPR device safety.
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