Ken Grauer, MD

FEBRUARY 13, 2023

NOTE: References I used for my above discussion of BiDirectional VT were — Ali et al ( J Coll Phys and Surgeons Pakistan 23(5):347-349, 2013 ) — and — Femenia, Baranchuk et al ( Indian Pacing Electrophysiol J 12(2):65-68, 2012 ). Contrast today's rhythm with true ventricular bigeminy — that was seen in ECG Blog #343 ).

Blog 78

Blog Arrhythmia Exercise Chest Pain 78

Ken Grauer, MD

MARCH 12, 2023

ANSWER: Treatment of the exceedingly rapid (ie, 1:1 AV conduction ) pattern of AFlutter seen in ECG #1 — resulted in considerable slowing of the rhythm, as seen in ECG #2 : The rhythm in ECG #2 — is a regular tachycardia at a rate just under 150/minute ( ie, about half as fast as the rhythm in ECG #1 ).

Blog 78

Blog Atrial Flutter Arrhythmia AFIB 78

Dr. Smith's ECG Blog

NOVEMBER 4, 2022

ST elevation (STE) in lead augmented vector right (aVR), coexistent with multilead ST depression, was endorsed as a sign of acute occlusion of the left main or proximal left anterior descending coronary artery in the 2013 STEMI guidelines. A slightly prolonged QTc ( although this is difficult to assess given the tachycardia ).

Ischemia 52

Ischemia STEMI Stenosis Chest Pain 52

Dr. Smith's ECG Blog

NOVEMBER 28, 2022

The ECG shows sinus tachycardia, a narrow, low voltage QRS with alternating amplitudes, no peaked T waves, no QT prolongation, and some minimal ST elevation in II, III, and aVF (without significant reciprocal STD or T wave inversion in aVL). It is difficult to tell if there is collapse during diastole due to the patient’s tachycardia.

Tachycardia 40

Tachycardia Pericarditis Ultrasound Blood Pressure 40

Dr. Smith's ECG Blog

JANUARY 30, 2019

Otherwise vitals after intubation were only notable for tachycardia. An initial EKG was obtained: Computer read: sinus tachycardia, early acute anterior infarct. She was ventilated by bag-valve-mask by EMS on arrival and was quickly intubated with etomidate and succinylcholine. A rectal temperature was obtained which read 107.9

Heart Rhythm 52

Heart Rhythm Sudden Cardiac Death Arrhythmia STEMI 52

Dr. Smith's ECG Blog

MAY 5, 2022

After initiating treatment for hyperkalemia, repeat ECG showed resolution of Brugada pattern: The ECG shows sinus tachycardia. A Very Wide Complex Tachycardia. He also received insulin with D50, sodium bicarbonate, and kayexalate for hyperkalemia. The QRS is narrow and T waves are much less peaked. What is the Rhythm?

Chest Pain 52

Chest Pain Bradycardia Cardiac Arrest STEMI 52

Dr. Smith's ECG Blog

AUGUST 9, 2019

Here is another proven left main occlusion in a young woman who presented with sudden pulmonary edema, had this ECG recorded, then arrested and was resuscitated after 30 minutes of CPR: This has sinus tachycardia with RBBB and LAFB, and STE in V2-V6 as well as I, aVL This pattern could just as easily be seen in LAD occlusion.

Myocardial Infarction 52

Myocardial Infarction Ischemia STEMI Cardiogenic Shock 52

Dr. Smith's ECG Blog

NOVEMBER 24, 2017

Answer : you must treat the patient's underlying condition causing sinus tachycardia, and repeat the ECG at the lower heart rate. Am J Cardiol 12(9):1379-1383; Nov 2013. Optimal QT interval correction formula in sinus tachycardia for identifying cardiovacular and mortality risk: Findings from the Penn Atrial Fibrillation Free study.

Bradycardia 52

Bradycardia Article Atrial Fibrillation Chest Pain 52

Dr. Smith's ECG Blog

NOVEMBER 19, 2016

N Engl J Med 2003; 348:1756-1763, 5/1/2013. Hypotension may of course be a result of a brady- or tachydysrhythmia. 2) Hypoxia, including poisons of oxidative phosphorylation such as HS, CO, CN. 3) Anemia, or poisons of hemoglobin such as methemoglobin or CO 4) Fixed coronary stenosis that limits flow. Circulation 1970;41:623-627 9.

Ischemia 40

Ischemia Cardiogenic Shock Aortic Stenosis 40

Ken Grauer, MD

MARCH 8, 2025

While its action improves AV conduction it may increase the sinus rate, producing a sinus tachycardia with adverse effect. Section 20 ( 54 pages = the " long " Answer ) from my ACLS-2013-Arrhythmias Expanded Version provides detailed discussion of WHAT the AV Blocks are and what they are not ! However, Atropine is not benign.

Blog 106

Blog STEMI Download Chest Pain 106

Dr. Smith's ECG Blog

MARCH 8, 2025

This was overtaken by a predominance of sympathetic surge ( tachycardia, persistent ST elevation development of electrical "storm" with failure to respond to recurrent defibrillation ). SanzRuiz, R., Solis, J., & & FernndezAvils, F. Acute myocardial infarction: an uncommon complication of takotsubo cardiomyopathy. link] Bai, J.,

Cardiomyopathy 75

Cardiomyopathy Myocardial Infarction Defibrillator Bradycardia 75