atrial_fibrillation with RVR Archives - Dr. Smith’s ECG Blog

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10 Min Read

onNovember 23, 2025

Atrial fibrillation with RVR and ST depression: POCUS, cardioversion, Lewis leads, and is this Posterior OMI?

An elderly man with a history of diabetes and HTN presented with lethargy and weakness, decreased urine output, and hypotension. There…

6 Min Read

Steve Smith

onApril 23, 2019

What is this tachycardia that alternates from wide to narrow to wide?

This is 50-something who presented after a seizure and was unconscious and tachycardic: There is a wide complex, followed by a narrow complex,…

7 Min Read

Pendell Meyers

onMay 19, 2018

A middle aged man with ST depression and a narrow window of opportunity

Written by Pendell Meyers I received a text at 18:13 of an ECG taken several minutes prior, with no clinical information and only the question…

3 Min Read

Pendell Meyers

onAugust 26, 2017

An irregularly irregular wide complex tachycardia

This was written by Pendell Meyers, a G2 of the Stony Brook residency who has a keen interest in ECGs and who is going to start to help edit…

1 Min Read

Steve Smith

onNovember 29, 2014

20 year old woman with dizziness and hypotension

This is posted courtesy of Jaber Ibrahim Almajbri. He posted it on Facebook EKG club and gave me permission to post it here. This 20…

Steve Smith

onSeptember 3, 2014

One Hour Lecture: Supraventricular Tachycardias (including ED management of atrial fibrillation)

This is a lecture on ED diagnosis and management of supraventricular tachycardias: Sinus Tach Paroxysmal SVT Atrial Fibrillation Atrial…

2 Min Read

Steve Smith

onAugust 27, 2013

A 20-something with palpitations and dizziness. What action will you take?

I have posted on this topic before, but whenever I think that readers completely understand it, I find there are still many who do not. …

2 Min Read

Steve Smith

onJune 5, 2009

Atrial fibrillation with rapid ventricular response with ECG injury pattern

This elderly woman presented hypotensive, pale, and tachycardic. Here is the initial ECG. There is an irregularly irregular rhythm…

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atrial_fibrillation with RVR

Atrial fibrillation with RVR and ST depression: POCUS, cardioversion, Lewis leads, and is this Posterior OMI?

What is this tachycardia that alternates from wide to narrow to wide?

A middle aged man with ST depression and a narrow window of opportunity

An irregularly irregular wide complex tachycardia

20 year old woman with dizziness and hypotension

One Hour Lecture: Supraventricular Tachycardias (including ED management of atrial fibrillation)

A 20-something with palpitations and dizziness. What action will you take?

Atrial fibrillation with rapid ventricular response with ECG injury pattern