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Severe Hyperkalemia

Daniel Johnson, DO^* and Dan Wiener, MD^*

DOI: https://doi.org/10.21980/J8KH1D Issue 5:3 No ratings yet.

The initial ECG obtained upon arrival shows what is commonly referred to as a sine wave pattern. This patient does have a biventricular pacemaker which would ordinarily create a wide QRS complex mimicking an intraventricular conduction delay. However, the QRS complex here is exceptionally wide, in excess of 400 milliseconds (normal: less than 120 milliseconds). As the QRS widens, alongside other deflections present on the ECG, it morphologically mimics a mathematical sine wave.

Caught on CT! The Case of the Hemodynamically Stable Ruptured Abdominal Aortic Aneurysm

Matthew Patrick Weber, MS, BS^* and Megan Stobart-Gallagher, DO^*

DOI: https://doi.org/10.21980/J8B07B Issue 5:3 No ratings yet.

The associated images demonstrate the transverse, sagittal, and coronal views of a 6.8 cm infrarenal ruptured AAA continuous with a 4 cm right common iliac aneurysm (transverse, sagittal and coronal). Active hemorrhage was seen contained within the aortic wall, and retroperitoneal bleeding can be appreciated with asymmetric enlargement of the left psoas muscle (coronal - red arrow).1 Plaque and calcifications with a residual opacified true lumen is also present (transverse – red star, sagittal – red arrow). Known as the tangential calcium sign, this is a common radiologic finding of AAAs.2

Cardiology/Vascular Current Issue Visual EM

Post-Coital Sudden Cardiac Arrest Due to Non-Traumatic Subarachnoid Hemorrhage—A Case Report

Vinson Vong, MD^*, John Costumbrado, MD, MPH^*, Daniel Ng, MD^*and Brandon Phong^{^}

DOI: https://doi.org/10.21980/J8663N Issue 5:3 No ratings yet.

The electrocardiogram demonstrated sinus tachycardia with ST segment elevation in lead aVR (black arrows) and diffuse ST depressions concerning for possible ST elevation myocardial infarction (STEMI). Given the events reported and the patient’s neurologic exam without sedation, non-contrast CT of the head was ordered; imaging showed evidence of a large subarachnoid hemorrhage, mostly at the level of the Circle of Willis (black arrow) concerning for an aneurysmal bleed as well as mild generalized white matter density suggestive of cerebral edema.

Cardiology/Vascular Current Issue Neurology 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

Pulseless Electrical Activity Cardiac Arrest

Erik Sembroski, MD^*, Christopher M McDowell, MD^{^} and Matthew M Mannion, BA^{^}

DOI: https://doi.org/10.21980/J8Z055 Issue 5:1 No ratings yet.

After competing this simulation-based session, the learner will be able to: 1) Identify PEA arrest; 2) review the ACLS commonly recognized PEA arrest etiol