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Ventricular Fibrillation, ICD, LBBB, QRS of 210 ms, Positive Smith Modified Sgarbossa Criteria, and Pacemaker-Mediated Tachycardia

Dr. Smith's ECG Blog

Then I always look to see if the initial deflection of the QRS has a lot of voltage change per change in time (seen in tachycardias that are initiated from above the ventricle because the propagate through fast conducting purkinje fiber. Tachycardia exaggerates ST Elevation in LBBB and Paced rhythm 5. Pacemaker mediated tachycardia!

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A 20-something woman with cardiac arrest.

Dr. Smith's ECG Blog

The above ECGs show the initiation and continuation of a polymorphic ventricular tachycardia. Polymorphic ventricular tachycardia can be ischemic, catecholaminergic or related to QT prolongation. Cardiac arrest was called and advanced life support was undertaken for this patient. Without an MRI, it is impossible to know.

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Exploring Potential New Treatment for Ventricular Tachycardia

DAIC

Cingolani, director of Cardiogenetics and Preclinical Research in the Department of Cardiology in the Smidt Heart Institute at Cedars-Sinai, is exploring new ways to help patients with ventricular tachycardia (VT), a recurring, abnormally fast and irregular heartbeat that starts in the lower chambers, or ventricles, of the heart.

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Resuscitated from ventricular fibrillation. Should the cath lab be activated?

Dr. Smith's ECG Blog

But cardiac arrest is a period of near zero flow in the coronary arteries and causes SEVERE ischemia. After cardiac arrest, I ALWAYS wait 15 minutes after an ECG like this and record another. See these related cases: Cardiac arrest, defibrillated, diffuse ST depression and ST Elevation in aVR.

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How will you save this critically ill patient? A fundamental and lifesaving ECG interpretation that everyone must recognize instantly.

Dr. Smith's ECG Blog

There was concern that the rhythm might represent ventricular tachycardia, so lidocaine was given and one attempt at cardioversion was performed. A woman in her 50s with dyspnea and bradycardia A patient with cardiac arrest, ROSC, and right bundle branch block (RBBB). HyperKalemia with Cardiac Arrest.

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How a pause can cause cardiac arrest

Dr. Smith's ECG Blog

While on telemetry monitoring he suffered cardiac arrest and was resuscitated. What ECG finding may have contributed to (or precipitated) the cardiac arrest? Learning points : Takotsubo can lead to cardiac arrest from ventricular arrhythmia. There are no clear signs of OMI. There is a prolonged QTc.

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ECG Blog #436 — Bigeminy or Alternans?

Ken Grauer, MD

He developed cardiac arrest shortly after the ECG in Figure-1 was recorded. IMPRESSION: Given the presence of a wide tachycardia — with 2 distinct QRS morphologies, and no sign of P waves — a presumed diagnosis of B i D irectional Ventricular Tachycardia has to be made. What is the most likely cause of this arrhythmia?

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