RT Journal Article SR Electronic T1 Predictive utility of cardiac ultrasound in traumatic cardiac arrest in a combat casualty JF Journal of the Royal Army Medical Corps JO J R Army Med Corps FD British Medical Journal Publishing Group SP 68 OP 70 DO 10.1136/jramc-2014-000358 VO 162 IS 1 A1 Rex Kinnear-Mellor A1 K Newton A1 T Woolley A1 R Rickard YR 2016 UL http://militaryhealth.bmj.com/content/162/1/68.abstract AB We report a case of traumatic cardiac arrest in a combat casualty who was resuscitated to return of spontaneous circulation despite asystole and no visible cardiac activity on initial ultrasound examination. This return of spontaneous circulation suggests that survival may be possible in traumatic cardiac arrest due to exsanguination, even when there is no demonstrable cardiac activity on ultrasound. Cardiac ultrasonography was performed for 10 s only. We suggest that cardiac ultrasonography should be performed for a minimum of 1 min during volume resuscitation. If absence of cardiac activity is confirmed once the heart is full, and there are no other signs of life (including pupillary reaction), then termination of resuscitation should be considered.