Ultrasound

An Ultrasound-Guided Regional Anesthesia Elective for Emergency Medicine Residents

Ryan V Tucker, MD^*, Robert Huang, MD^*, William J Peterson, MD^*, Brendan W Munzer, MD^* and Molly Thiessen, MD^{^}

DOI: https://doi.org/10.21980/J8TP9B Issue 6:1 No ratings yet.

ABSTRACT: Audience: This ultrasound-guided regional anesthesia elective is designed for emergency medicine residents. Length of Curriculum: The proposed length of this curriculum is over one week. Introduction: Ultrasound-guided regional anesthesia (UGRA) is a useful tool in the emergency department (ED) for managing painful conditions, and many programs have identified that these are useful skills for emergency providers; however, only about

Bladder Diverticulum – A Case Report

Savannah Tan, BS^* and Sangeeta Sakaria, MD, MPH, MST^*

DOI: https://doi.org/10.21980/J8635C Issue 5:4 No ratings yet.

On examination, the patient was alert and oriented but in mild distress. Suprapubic fullness was noted upon abdominal palpation. Point of care ultrasound of the bladder showed two enlarged “bladders” with a central communication. Bedside total bladder volume was measured to be 1288 cm3 (the top “bladder” was measured to be 1011 cm3, while the bottom “diverticulum” was measured to be 277 cm3) by ultrasound. The POCUS stills of the patient’s bladder demonstrated the bladder (red arrow) and bladder diverticulum (yellow arrow) with a central communication (blue arrow) in the transverse and sagittal views.

Renal/Electrolytes Ultrasound Visual EM

Ascending Thoracic Aortic Dissection: A Case Report of Rapid Detection Via Emergency Echocardiography with Suprasternal Notch Views

Brandon Backlund, MD^*, Anastasia Kendrick-Adey, MD^*, Rachel Harper, MD^* and Martin Makela, MD^*

DOI: https://doi.org/10.21980/J8WW6WIssue 5:2 No ratings yet.

Video of parasternal long-axis bedside transthoracic echocardiogram: The initial images showed grossly normal left ventricular function, and no pericardial effusion or evidence of cardiac tamponade. However, the proximal aorta beyond the aortic valve was poorly-visualized in this window.

Cardiology/Vascular Ultrasound Visual EM

Point-Of-Care Ultrasound for the Diagnosis of Extensor Tenosynovitis

James A Frank, MD^*, Joshua Lupton, MD^* and Bryson Hicks, MD^*

DOI: https://doi.org/10.21980/J8Q050Issue 4:3 No ratings yet.

Point-of-care ultrasound of the dorsal aspect of the left hand reveals a heterogenous hypoechoic fluid collection surrounding the extensor tendons (axial view) within the retinaculum consistent with edema. Longitudinal view shows anechoic fluid within the tenosynovium which is located between the anisotropic extensor tendon and linear hyperechoic synovial sheath. Longitudinal view also shows some cobblestoning, or tissue edema, superficial to the anisotropic extensor tendon. The patient’s contralateral right dorsal hand was scanned in a longitudinal view and shows no cobblestoning or hypoechoic fluid under the synovial sheath. The patient was diagnosed with tenosynovitis, and started on intravenous antibiotics.

Orthopedics Infectious Disease Ultrasound Visual EM

Point-of-care Ultrasound in the Diagnosis and Monitoring of Bladder Hematoma vs. Hemorrhage

Esther Kim, BS^* and Shadi Lahham, MD, MS^*

DOI: https://doi.org/10.21980/J8092FIssue 4:3 No ratings yet.

Bladder POCUS demonstrated 500mL of post void residual fluid, indicative of retention. Half of the volume is hyperechoic (red circle); this is likely the bladder wall hematoma. Could also consider sonographic artifact, bladder mass, or cystitis.1-2

Genitourinary Ultrasound Visual EM

Point-of-Care Ultrasound to Evaluate Intrahepatic Biliary Stent Function

Michael Louthan, BS^* and Shadi Lahham, MD, MS^*

DOI: https://doi.org/10.21980/J86S6N Issue 4:3 No ratings yet.

The ultrasound image demonstrates severe intrahepatic biliary ductal dilatation without an obvious intrahepatic obstructive lesion, as pointed out by the white arrows. The hepatic vasculature is well-distinguished from the biliary tree via color flow doppler, as seen by the white arrowheads.

Abdominal/Gastroenterology Ultrasound Visual EM

Pericardial Clot on Point-of-Care Ultrasound

Rame Bashir, BS^*, Esther Kim, BS^*, Shadi Lahham, MD, MS^* and John C Fox, MD^*

DOI: https://doi.org/10.21980/J8ZH1TIssue 4:2 No ratings yet.

Focused assessment with sonography in trauma (FAST) scan was positive for a clinically significant pericardial effusion as evidenced by the hypoechoic fluid around the myocardium, indicated by the blue arrow in image 2. Findings are also consistent with tamponade process as evidenced by restricted expansion and collapse of the right ventricle during diastole. The hyperechoic floating structure between the pericardium and myocardium, adjacent to the right ventricle, represents a pericardial clot, indicated by the white arrow.The density of the pericardial clot differs from that of the myocardium, thus serving as an additional variable to avoid confusing this as part of the myocardial structure.

Cardiology/Vascular Ultrasound Visual EM

Radiolucent Foreign Body Seen on Point-of-Care Ultrasound but not on X-ray

Julian Jakubowski, DO^*

DOI: https://doi.org/10.21980/J8WS77Issue 4:1 No ratings yet.

X-rays of the foot were obtained and no radiopaque foreign body was visualized. Due to high clinical suspicion for retained foreign body, a point-of-care ultrasound was performed by applying a high-frequency linear probe at the area of discomfort. In the long axis an ovoid focus of hypoechogenicity (orange outline) is visualized. Within this finding there is a linear focus (yellow line) of increased echogenicity measuring 1 mm in diameter and 1 cm in length. On short axis view, a rectangle focus (green dot) demonstrating shadowing (blue highlight) is seen.

Ultrasound Visual EM

Low-Cost, Low Fidelity Meat Model to Teach Ultrasound Guided Nerve Blocks

Morgan Oakland, MD^*, Shruti Chandra, MD^* and Carl Alsup, MD^*

DOI: https://doi.org/10.21980/J83G9RIssue 3:4 No ratings yet.

Upon completion of this workshop, learners will be able to: 1) Describe the risks and benefits of ultrasound guided nerve blocks. 2) Choose the appropriate nerve to block based on the area that needs anesthesia. 3) Display proficiency in performing an ultrasound guided nerve block on meat models. 4) Verbalize confidence in successfully performing ultrasound guided regional anesthesia. By successfully meeting these objectives, we aim to improve learner confidence and clinical ability in performing ultrasound guided nerve blocks.

Ultrasound Innovations

Point of Care Ultrasound Illustrating Small Bowel Obstruction

Badriah Alruwaili, MBBS^* and Shadi Lahham, MD^*

DOI: https://doi.org/10.21980/J8T637Issue 3:3 No ratings yet.

POCUS of the small bowel illustrated significantly dilated loops of bowel (white line), thickened bowel wall (white arrow) and to-and-fro peristalsis, consistent with small bowel obstruction.

Abdominal/Gastroenterology Ultrasound Visual EM