article thumbnail

PO-02-002 DEVICE ALGORITHM FACILITATED SHORT-LONG-SHORT SEQUENCE RESULTING IN POLYMORPHIC VENTRICULAR TACHYCARDIA: A CASE STUDY

HeartRhythm

Short-long-short (S-L-S) electrocardiographic cycle length patterns are associated with incidence of ventricular tachycardia (VT) and ventricular fibrillation (VF). It is also recognised that pacemakers can facilitate these cycle length sequences, and that the observation of these sequences can predict future VT/VF events.

article thumbnail

Collateral Coronary Flow in the Interventricular Septum Detected on Intracardiac Echocardiography Imaging

HeartRhythm

A 72-year-old man with severe coronary artery disease (CAD) and coronary artery bypass grafting complicated by ischemic cardiomyopathy and ventricular tachycardia (VT) was referred for redo VT ablation.

article thumbnail

ECG in LMCA Stenosis

All About Cardiovascular System and Disorders

ECG in a person with persistent anginal pain for the past several hours showing significant ST segment depression anterolateral leads along with sinus tachycardia. Such a pattern is consistent with significant left main coronary artery stenosis. ST segment elevation is noted in aVR.

article thumbnail

Diffuse Subendocardial Ischemia on the ECG. Left main? 3-vessel disease? No!

Dr. Smith's ECG Blog

Author continued : STE in aVR is often due to left main coronary artery obstruction (OR 4.72), and is associated with in-hospital cardiovascular mortality (OR 5.58). 3) Anemia, or poisons of hemoglobin such as methemoglobin or CO 4) Fixed coronary stenosis that limits flow.

article thumbnail

Racial and Ethnic and Sex Disparities in the Outcomes and Treatment of In‐Hospital Cardiac Arrest: A Nationwide Analysis From the United States

Journal of the American Heart Association

had ventricular tachycardia/ventricular fibrillation and 73.4% Multivariable logistic regression analysis was used to adjust for potential confounders. Among 207 770 patients with IHCA, 26.6% had pulseless electrical activity/asystole.

article thumbnail

Of Twists and Turns

EMS 12-Lead

Initial vital signs include: NIBP 99/58 HR 150-160 (trend) RR 10 (spontaneous, but shallow) SpO2 86 (RA) BBS CTA The initial rhythm strip is attached: Figure 1 There is a wide complex tachycardia of varying morphology, amplitude, and R-R cycle length. Chapter 10: Recurrent Ventricular Tachycardia (pg. 2] Viskin, S., 3] Murphy, M.

article thumbnail

Pulmonary edema, with tachycardia and OMI on the ECG -- what is going on?

Dr. Smith's ECG Blog

The status of the patients chest pain at this time is unknown : EKG 1, 1300: There is sinus tachycardia and artifact of low and high frequency. However, there is also significant tachycardia , with heart rate of 116, and known hypoxia. Acute coronary occlusion and acute pulmonary edema can coexist.