Ultrasound Localization of Resuscitative Endovascular Balloon Occlusion of the Aorta in a Human Cadaver Model

• DOI: 10.55460/8mdd-by4i
• Publication Date: 2023-05-12T01:01:58Z
• Authors: Tyler Lopachin; Christopher D Tre...; Eric F Sulava; Sean M Stuart; Megan L Bohan; Michael Boboc; Pravina Fernandez; William D Bianchi; Andrew J McGowan; Emily E Friedrich
• Keywords: Intravascular Ultrasound; Abdominal aorta; Balloon catheter

Resuscitative endovascular balloon occlusion of the aorta (REBOA) is a method gaining proximal control noncompressible torso hemorrhage (NCTH). Catheter placement traditionally confirmed with fluoroscopy, but few studies have evaluated whether ultrasound (US) can be used.Using pressurized human cadaver model, certified REBOA placer was shown one four randomized cards that instructed them to place either correctly or incorrectly in Zone 1 (the distal thoracic extending from celiac artery left subclavian artery) 3 (in abdominal aorta, aortic bifurcation lowest renal artery). Once placed, 10 US-trained locators were asked confirm via US. The participants given minutes determine catheter had been repeating this 20 times on two cadavers.Overall, US exhibited an average sensitivity 83%, specificity 76%, and accuracy 80%. For 1, showed 78% for 3, 88% 76%. In addition, likelihood positive ratio (LR+) 3.73 negative (LR-) 0.22 position, similar numbers (+4.57, -0.26) (+3.16, -0.16).Ultrasound could prove useful tool confirming catheter, especially austere environments.