Supraventricular Tachycardia (PSVT) Archives

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5 Min Read

onAugust 13, 2025

A 30-something agitated male with a regular narrow complex tachycardia that will not terminate with adenosine

30-something male presented by EMS for evaluation of agitation and tachycardia. Per EMS, patient was running through the street, yelling, and…

5 Min Read

Steve Smith

onJuly 21, 2025

Chest pain and a fast rhythm

My partner brought me this ECG during a shift, not sure how to interpret it. A 65 y.o. male with a past medical history significant for…

4 Min Read

Steve Smith

onMarch 28, 2024

Wide Complex Tachycardia — VT, SVT, or A Fib with RVR? If SVT, is it AVNRT or AVRT?

A 69 y.o. male with pertinent past medical history including Atrial fibrillation, atrial flutter, cardiomyopathy, Pulmonary…

8 Min Read

Pendell Meyers

onOctober 25, 2022

Back to basics: what is this rhythm? What are your options for treating this patient?

Written by Bobby Nicholson MD, with edits by Meyers, Smith, Grauer A woman in her early 40s presented to the emergency department for…

3 Min Read

Pendell Meyers

onSeptember 21, 2021

A woman in her 60s with palpitations, chest discomfort, and multiple misdiagnoses by both EM and Cardiology!!

Written by Pendell Meyers A woman in her 60s was shopping when she suddenly experienced palpitations and chest “discomfort.”…

5 Min Read

Steve Smith

onMarch 25, 2021

20-something with anxiety. Pulse is 169. Then 229. Then 169. Then 229. Latent conduction vs. Concealed Conduction. 3 Pathways.

A young woman in her third trimester of pregnancy had complained of panic attacks on multiple occasions. She presented to the ED…

11 Min Read

Steve Smith

onJune 9, 2020

A very fast wide complex tachycardia

A 60-something patient presented by EMS with non-specific symptoms. He had a very rapid rhythm that was not converted by 6 mg, then 12…

12 Min Read

Steve Smith

onMarch 6, 2020

New Onset Heart Failure and Frequent Prolonged SVT. What is it? Management?

This middle-aged man with no cardiac history but with significant history of methamphetamin and alcohol use presented with chest pain and SOB,…

8 Min Read

Pendell Meyers

onOctober 16, 2019

What could this rhythm be? And what is going on after it breaks?

Written by Pendell Meyers, edits by Steve Smith A man in his 30s with no prior medical history presented with palpitations. His vitals and…

10 Min Read

Pendell Meyers

onNovember 26, 2018

Arrhythmia? Ischemia? Both? Electricity, drugs, lytics, cath lab? You decide.

Written by Pendell Meyers with edits by Steve Smith A male in his 60s presented with off and on shortness of breath and chest pressure over…

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Supraventricular Tachycardia (PSVT)

A 30-something agitated male with a regular narrow complex tachycardia that will not terminate with adenosine

Chest pain and a fast rhythm

Wide Complex Tachycardia — VT, SVT, or A Fib with RVR? If SVT, is it AVNRT or AVRT?

Back to basics: what is this rhythm? What are your options for treating this patient?

A woman in her 60s with palpitations, chest discomfort, and multiple misdiagnoses by both EM and Cardiology!!

20-something with anxiety. Pulse is 169. Then 229. Then 169. Then 229. Latent conduction vs. Concealed Conduction. 3 Pathways.

A very fast wide complex tachycardia

New Onset Heart Failure and Frequent Prolonged SVT. What is it? Management?

What could this rhythm be? And what is going on after it breaks?

Arrhythmia? Ischemia? Both? Electricity, drugs, lytics, cath lab? You decide.