Cardiology/Vascular

Osborn Waves in a Severely Hypothermic Patient

Jon Van Heukelom, MD^*

DOI: https://doi.org/10.21980/J8H34SIssue 3:2 No ratings yet.

The initial EKG shows marked elevation of the J-point (point where the QRS segment joins the ST segment), otherwise known as an “Osborn Wave” (see black arrows). A subsequent EKG obtained after active rewarming, showed resolution of the Osborn waves.

Cardiology/Vascular Visual EM

Torsades de Pointes

Richard J Chen, MD^*, Grant Wei, MD^* and Chirag Shah, MD^*

DOI: https://doi.org/10.21980/J87K91 Issue 3:2 No ratings yet.

The patient was found to be in a polymorphic ventricular tachycardia; he was alert, awake and asymptomatic. A rhythm strip showed a wide complex tachycardia with the QRS complex varying in amplitude around the isoelectric line consistent with Torsades de Pointes.

Cardiology/Vascular Visual EM

Type 1 Brugada Syndrome

Sha Yan, DO^*, Grant Wei, MD^* and Chirag Shah, MD^*

DOI: https://doi.org/10.21980/J8V91T Issue 3:2 No ratings yet.

ECG shows an incomplete right bundle branch block (blue arrow) with coved ST segment elevation and an inverted T wave in V1 (red arrow) and ST segment elevation in V2 (black arrow).

Cardiology/Vascular Visual EM

Osborn Waves

James Elliot Karz, DO^*, Grant Wei, MD^* and Chirag Shah, MD^*

DOI: https://doi.org/10.21980/J8G34G Issue 3:2 No ratings yet.

The initial ECG shows a junctional rhythm with Osborn waves (or J point elevations/J waves) in the lateral precordial leads, as well as the limb leads (Image 1). The second ECG, 49 minutes later, shows an improving ventricular rate and Osborn wave height decrease of approximately 50% (Image 2).

Cardiology/Vascular Visual EM

Elderly female with acute abdominal pain presenting with Superior Mesenteric Artery Thrombus

Sassan Ghassemzadeh, MD^*

DOI: https://doi.org/10.21980/J82W52 Issue 3:2 No ratings yet.

Computed tomography (CT) angiogram of the abdomen and pelvis revealed a superior mesenteric artery (SMA) thrombosis 5 cm from the origin off of the abdominal aorta. As seen in the sagittal view, there does not appear to be any contrast 5 cm past the origin of the SMA. On the axial views, you can trace the SMA until the point that there is no longer any contrast visible which indicates the start of the thrombus. The SMA does not appear to be reconstituted. There was normal flow to the celiac artery. (See annotated images).

Abdominal/Gastroenterology Cardiology/Vascular Visual EM

Tricuspid Annular Plane Systolic Excursion (TAPSE) in a Patient with Pulmonary Emboli

Nicole Zawada, BS^*, Ethan Kunstadt, MD^* and Maili Alvarado, MD^{^}

DOI: https://doi.org/10.21980/J8M052 Issue 3:1 No ratings yet.

Video 1 and Image 1 show a thrombus in the patient’s IVC. Video 2 and Images 2-3 demonstrate a positive TAPSE of less than 17mm (blue arrow length) with a significantly dilated RV, indicating abnormal excursion of the tricuspid annulus and right ventricular dysfunction.

Respiratory Cardiology/Vascular Visual EM

Management of Wolff-Parkinson-White Tachyarrhythmia Presenting as Syncope with Seizure-like Activity

Samuel Kaplan, BS^* and Lindsey Spiegelman, MD^*

DOI: https://doi.org/10.21980/J8534P Issue 2:4 No ratings yet.

At the end of this simulation session the learner will: 1) Recognize clinical history suggestive of cardiogenic syncope, 2) recognize clinical evidence of Wolff-Parkinson-White syndrome, 3) promptly and appropriately treat unstable WPW tachyarrhythmia.

Cardiology/Vascular Simulation

Asymptomatic Wolff-Parkinson-White Syndrome: Incidental EKG

Samer Assaf, MD^* and Christopher Libby, MD, MPH^{^}

DOI: https://doi.org/10.21980/J8T05X Issue 2:3 No ratings yet.

The ECG shows slurred up-stroking of the QRS complexes characteristic of a delta wave. The PR interval is normal; however, the QT interval is greater than 110ms.

Cardiology/Vascular Visual EM

Renal Infarction from Type B Aortic Dissection

Marit Tweet, MD^* and James Roy Waymack, MD^*

DOI: https://doi.org/10.21980/J8HG9G Issue 2:3 No ratings yet.

Initial abdominal images demonstrated a dissection flap; therefore, a CTA of the chest was also obtained. These images revealed a Stanford type B aortic dissection beginning just distal to the left subclavian artery and extending to the origin of the inferior mesenteric artery. The right renal artery arose from the true lumen of the dissection while the left renal artery arose from the false lumen. This case is interesting as imaging shows the lack of perfusion to the left kidney, residing in the retroperitoneum, which correlates with her non-descript abdominal and left flank pain.

Cardiology/Vascular Renal/Electrolytes Visual EM