Figure 1

Conduction of REBOA (Resuscitative Endovascular Balloon Occlusion of the Aorta) according to study procedure and equipment use. Top row: femoral vessel visualization by (a) ultrasound-guidance using a SonoSite® M-Turbo Series ultrasound machine and a 15-6 MHz linear probe and (b) surgical cut-down using surgical forceps, scalpel, wound distractors, surgical scissors for open cut-down access; Middle row: femoral artery puncture and guidewire introduction following (c) ultrasound-guidance and (d) surgical cut-down; Bottom row: after balloon inflation following (e) ultrasound-guidance and (f) surgical cut-down.