Man With Chest Pain After a Traffic Crash.

Abstract

A 40-year-old man had been involved in a scooter crash and presented to the emergency department with chest pain. His vital signs were blood pressure, 160/84 mmHg; pulse, 109 beats/min; respiratory rate 24 breaths/min, and temperature, 37.5 °C. Physical examination revealed severe local tenderness in the mid-chest region. Plain radiography (Figure 1) and point-of-care ultrasonography of the chest (Figure 2 and Video 1) were performed, and the diagnosis was confirmed by contrast-enhanced computed tomography.Figure 2The point-of-care ultrasound at the site of pain showed a breach in the anterior cortex of the sternal body (arrowhead) and a mass with mixed echogenicity around the fracture indicating hematoma (asterisk).View Large Image Figure ViewerDownload Hi-res image Download (PPT) Sternum fracture. Plain radiography revealed a suspicious mild depression fracture of the sternum. Point-of-care ultrasound imaging, using a high-frequency linear transducer at the site of pain, showed a discontinuous outline of the sternum. A chest computed tomography (Figure 3) image was obtained for confirmation of the diagnosis and to detect possible concomitant associate injuries, such as great vessel disruption, cardiac contusion, and pulmonary contusion. Sternum fracture is characterized by chest pain, which worsens with deep inspiration and shortness of breath. Motor vehicle crashes are the leading cause of sternum fracture, typically due to hitting the steering wheel without an airbag.1Oyetunji T.A. Jackson H.T. Obirieze A.C. et al.Associated injuries in traumatic sternal fractures: a review of the National Trauma Data Bank.Am Surg. 2013; 79: 702-705Crossref PubMed Google Scholar,2Knobloch K. Wagner S. Haasper C. et al.Sternal fractures occur most often in old cars to seat-belted drivers without any airbag often with concomitant spinal injuries: clinical findings and technical collision variables among 42,055 crash victims.Ann Thorac Surg. 2006; 82: 444-450Abstract Full Text Full Text PDF PubMed Scopus (55) Google Scholar Conventional chest radiography has variable diagnosis accuracy, and most sternal fractures may be missed by chest radiography alone.3Perez M.R. Rodriguez R.M. Baumann B.M. et al.Sternal fracture in the age of pan-scan.Injury. 2015; 46: 1324-1327Abstract Full Text Full Text PDF PubMed Scopus (23) Google Scholar The point-of-care ultrasound can be considered a useful technique in identifying sternum fractures.4You J.S. Chung Y.E. Kim D. et al.Role of sonography in the emergency room to diagnose sternal fractures.J Clin Ultrasound. 2010; 38: 135-137PubMed Google Scholar https://www.annemergmed.com/cms/asset/9b3c776c-e7a2-4271-9e98-27acc23ff9ab/mmc1.mp4Loading ... Download .mp4 (3.14 MB) Help with .mp4 files Video 1The point-of-care ultrasound at the site of pain showed a breach in the anterior cortex of the sternal body (arrowhead) and a mass with a mixed echogenicity around the fracture indicating hematoma (asterisk).