ECG Guru

MARCH 6, 2024

The ECG : The first impression is that is a regular WIDE COMPLEX TACHYCARDIA. It pays to take a moment to consider the possibility of REGULAR REALLY WIDE COMPLEX TACHYCARDIA (RRWCT) before making a treatment decision. So, we can assume the patient was probably being treated for angina, heart failure, and hypertension.

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Tachycardia ACE Inhibitor Angina Heart Failure 98

Dr. Smith's ECG Blog

JUNE 28, 2023

A prehospital 12-lead was recorded: There is a regular wide complex tachycardia. The computer diagnosed this as Ventricular Tachycardia. There is a wide complex regular tachycardia at a rate of 226. Toothache, incidental Wide Complex Tachycardia Could it be fascicular VT or Bundle Branch VT ( i.e., idiopathic VT )?

Tachycardia 98

Tachycardia Ultrasound Heart Disease Atrial Fibrillation 98

Dr. Smith's ECG Blog

JULY 17, 2023

There is a regular narrow complex tachycardia. Thus, it is supraventricular tachycardia. It is important to remember that SVT includes Sinus Tachycardia! Sometimes even Wide Complex Tachycardia is Sinus. See this case in which Lewis leads were necessary to figure this out: Wide Complex Tachycardia.

Tachycardia 98

Tachycardia Atrial Flutter Blog Exercise 98

Ken Grauer, MD

NOVEMBER 10, 2023

== — CLICK HERE — for a V ideo presentation of this case! Below are slides used in my video presentation. For full discussion of this case — See ECG Blog #220 — == The long lead II rhythm strip shown in Figure-1 was obtained from an 51-year-old man who presented to the ED ( Emergency Department ) with "palpitations" that began 1 hour earlier.

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Blog Tachycardia Arrhythmia 192

Dr. Smith's ECG Blog

MARCH 28, 2024

male with pertinent past medical history including Atrial fibrillation, atrial flutter, cardiomyopathy, Pulmonary Embolism, and hypertension presented to the Emergency Department via ambulance for respiratory distress and tachycardia. Description : Regular Wide Complex Tachycardia at a rate of about 160. SVT with aberrancy?

Tachycardia 129

Tachycardia Atrial Fibrillation AFIB Atrial Flutter 129

ECG Guru

MAY 24, 2024

ECG Number 1, 11:57 a.m.: There is a wide-complex tachycardia at a rate of about 230 bpm. We do not have information about her past medical history. We will update this post if we receive information about her outcome. The QRS is.15 15 seconds (150 ms). The QRS frontal plane axis is leftward.

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Tachycardia Outcomes 98

Medical Xpress - Cardiology

OCTOBER 8, 2024

A multicenter study has described and validated a new strategy for guiding ablation procedures in patients with complex tachycardias. This type of procedure is frequently used to treat ventricular tachycardias originating in areas affected by scarring after a myocardial infarction.

Tachycardia 81

Tachycardia Myocardial Infarction Heart Rhythm Ablation 81

Dr. Smith's ECG Blog

JANUARY 9, 2024

She had a single chamber ICD/Pacemaker implanted several years prior due to ventricular tachycardia. Answer : The ECG above shows a regular wide complex tachycardia. Said differently, the ECG shows a rather slow ventricular tachycardia with a 2:1 VA conduction. Cardiac output (CO) was being maintained by the tachycardia.

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Tachycardia Electrophysiology Atrial Flutter Ischemia 119

Dr. Smith's ECG Blog

JUNE 21, 2024

A patient in the ICU with significant underlying cardiac disease [HFrEF 30%, non-ischemic cardiomyopathy, LBBB s/p CRT-D (biventricular pacer), AVNRT s/p ablation a few yrs ago, hx sinus tachycardia while on max tolerated BB therapy] went into a regular wide-complex tachycardia after intubation for severe COPD exacerbation. What to do?

Tachycardia 71

Tachycardia Atrial Fibrillation Pacemaker Blog 71

Medical Xpress - Cardiology

JANUARY 10, 2024

Patients with post-COVID-19 vaccination postural orthostatic tachycardia syndrome (POTS) all have preexisting conditions, according to a study published in the January issue of Heart Rhythm.

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COVID-19 Tachycardia POTS Heart Rhythm 86

Journal of Cardiovascular Electrophysiology

MARCH 17, 2025

Distribution Variance of Focal Atrial Tachycardia Foci and Long-Term Outcomes After Ablation. ABSTRACT Introduction The distribution of the origin of focal atrial tachycardia (FAT) in patients with different ages have not been clearly elucidated.

Tachycardia 40

Tachycardia Ablation Outcomes Tricuspid 40

The New England Journal of Medicine

FEBRUARY 19, 2025

Among patients with ventricular tachycardia and ischemic cardiomyopathy, catheter ablation as an initial therapy led to a lower risk of adverse outcomes than antiarrhythmic drug therapy.

Tachycardia 71

Tachycardia Ablation Cardiomyopathy Outcomes 71

ECG Guru

APRIL 24, 2025

The ECG is from a 56-year-old man with severe ischemic cardiomyopathy who had an ICD implanted a few months ago due to recurrent ventricular tachycardia. Here we see a single-channel ECG, each line representing about 30 seconds. The explanation of what can be seen on this ECG can be found on the 2nd image.

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Tachycardia Cardiomyopathy 76

HeartRhythm

JANUARY 25, 2024

Differentiating between atypical atrioventricular node re-entrant tachycardia (aAVNRT) and orthodromic reciprocating tachycardia (ORT) utilizing a septal accessory pathway is a complex challenge.

Tachycardia 75

Tachycardia 75

Dr. Smith's ECG Blog

JUNE 11, 2023

The ECGs show a wide complex, irregularly irregular tachycardia. At that time, he presented via EMS and had received magnesium and lidocaine prehospital for concerns of ventricular tachycardia. On arrival to the ED, he was noted to be in a wide complex tachycardia with a rate in the 240s.

Tachycardia 98

Tachycardia Atrial Fibrillation Chest Pain Blood Pressure 98

Heart BMJ

FEBRUARY 12, 2025

Scar-related re-entrant atrial tachycardias and atrial fibrillation (AF) are the most common types of AA, but focal atrial tachycardias, atrioventricular re-entrant tachycardia using an accessory pathway and atrioventricular nodal re-entrant tachycardia are also encountered.

Congenital Heart Disease 59

Congenital Heart Disease Congenital Heart Failure Heart Disease 59

JAMA Cardiology

APRIL 8, 2025

This secondary analysis of a randomized clinical trial describes the use of emergency care after self-administration of etripamil by patients experiencing paroxysmal supraventricular tachycardia episodes at home.

Tachycardia 68

Tachycardia 68

American College of Cardiology

NOVEMBER 16, 2024

The goal of the VANISH2 trial was to compare endocardial catheter ablation with conventional antiarrhythmic drug (AAD) therapy as a first-line treatment for infarct-related ventricular tachycardia (VT) in ischemic cardiomyopathy.

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Tachycardia Ablation Heart Disease Cardiomyopathy 68

Circulation

JANUARY 6, 2025

BACKGROUND:Current outcomes from catheter ablation for scar-dependent ventricular tachycardia (VT) are limited by high recurrence rates and long procedure durations. Circulation, Ahead of Print.

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Tachycardia Technology Ablation Electrophysiology 85

Ken Grauer, MD

OCTOBER 10, 2024

QUESTIONS: Is this rhythm too fast to be sinus tachycardia? However, until such time that we know for certain — I think it best to simply describe what we see: PEARL # 1: Realize that for any tachycardia — there are 6 Parameters that need to be assessed. Are flutter waves hidden within the QRS and T waves? s in Figure-2 ).

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Blog Tachycardia Atrial Flutter 168

Heart BMJ

JULY 10, 2024

Clinical introduction A woman in her 60s with non-obstructive coronary artery disease, aortic valve replacement and aortic arch repair, chronic diastolic heart failure and paroxysmal atrial fibrillation (AF) and flutter (AFL), presented with 3 days of sustained palpitations that felt similar to prior episodes of AF/AFL.

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Tachycardia Aortic valve Coronary Artery Disease Atrial Fibrillation 102

Journal of Cardiovascular Electrophysiology

SEPTEMBER 16, 2024

Abstract Introduction Understanding the spatiotemporal location of the spontaneous termination of ventricular tachycardia (VT) may provide new insights for ablation.

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Tachycardia Ablation Electrophysiology Article 75

Dr. Smith's ECG Blog

FEBRUARY 16, 2024

But it is not disorganized enough to be polymorphic ventricular tachycardia. Learning Points: Wide complex irregularly irregular tachycardias include PMVT, AF with WPW, and AF with aberrancy. See our other cases of AF with WPW: A young man with another episode of tachycardia. What do you want to do? Smith : I always cardiovert.

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Tachycardia Atrial Fibrillation Chest Pain Blood Pressure 136

ECG Guru

DECEMBER 18, 2023

If a wide complex tachycardia occurs, the probability is very high that it is a ventricular tachycardia (approx. Here we see a broad complex tachycardia that looks like an RBBB + LAFB, which is regular. 80%, in patients with a previous myocardial infarction (.) In this constellation, 3 causes must be considered: 1.

Myocardial Infarction 119

Myocardial Infarction Tachycardia 119

Journal of the American Heart Association

FEBRUARY 3, 2025

These result in diagnoses such as postural orthostatic tachycardia syndrome and orthostatic hypotension. Because CBF is not easy to measure, rises in heart rate or drops in blood pressure are used as proxies for abnormal CBF.

Blood Pressure 76

Blood Pressure Quality of Life Ultrasound Tachycardia 76

Ken Grauer, MD

DECEMBER 12, 2024

I was sent the ECG in Figure-1 initially told only that it was obtained from an older man with palpitations. The cardiology team thought the rhythm was an SVT ( S upra V entricular T achycardia ) with QRS widening as a result of aberrant conduction.

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Blog Tachycardia Heart Disease Congenital Heart Disease 82

Medical Xpress - Cardiology

DECEMBER 19, 2023

Heart rates are easier to monitor today than ever before. Thanks to smartwatches that can sense a pulse, all it takes is a quick flip of the wrist to check your heart. But monitoring the cells responsible for heart rate is much more challenging—and it's encouraged researchers to invent new ways to analyze them.

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Research Tachycardia 103

Open Heart

FEBRUARY 17, 2025

Oral anticoagulants (OAC) were administered at baseline in 69.5% of the patients.

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Cardiomyopathy Atrial Fibrillation Research Defibrillator 88

Dr. Smith's ECG Blog

OCTOBER 21, 2023

On the monitor patient had wide-complex tachycardia. Differential is ventricular tachycardia versus supraventricular tachycardia with aberrancy versus sinus tachycardia with a aberrancy. After the patient was stabilized with supportive care, the heart rate gradually slowed, confirming sinus tachycardia.

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Tachycardia Pulmonary Blood Pressure Blog 139

Ken Grauer, MD

JUNE 22, 2024

The ECG in Figure-1 — was obtained from a middle-aged woman with positional tachycardia and diaphoresis with change of position from suprine to sitting. My THOUGHTS on the ECG in Figure-1: The rhythm is sinus tachycardia at ~105/minute ( ie, The R-R interval is regular — and just under 3 large boxes in duration ).

Blog 171

Blog Ischemia Tachycardia Cardiomyopathy 171

Nature Reviews - Cardiology

JANUARY 1, 2024

In this Review, Fedorowski and colleagues define the major forms of CVAD (including postural orthostatic tachycardia syndrome), and discuss the aetiology, diagnosis and management of post-COVID-19 syndrome-associated CVAD.

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COVID-19 Tachycardia 145

Dr. Smith's ECG Blog

JANUARY 2, 2025

Even with tachycardia and a paced QRS duration of ~0.16 (J Am Coll Cardiol. second I immediately knew there is no way this relative increase in QT duration ( compared to the R-R interval ) is going to be "normal". 2 Quick Approximations that I Use: As I discuss in My Comment in the March 19, 2019 post in Dr.

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Tachycardia Cardiomyopathy Blog Bradycardia 116

ECG Guru

JULY 30, 2023

A is the first beat of a wide complex tachycardia. This must be a ventricular tachycardia. Although there is a P-wave before the first beat of the tachycardia, it is not premature. The first beat of the tachycardia looks different from the subsequent beats because there is a fusion beat present.

Tachycardia 98

Tachycardia 98

HeartRhythm

MARCH 31, 2025

Concurrent supraventricular tachycardia (SVT) and idiopathic ventricular tachycardia (VT) have been reported; the coexistence of SVT and VT in patient with structural heart disease is very rare.

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Tachycardia Heart Disease 40

Med Page Today

OCTOBER 4, 2024

(MedPage Today) -- Continuous rhythm monitoring showed the timeline in which heart rate and atrial tachycardias typically arise after binge drinking by young adults, researchers reported. In people with no known history of cardiac arrhythmias.

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Tachycardia Arrhythmia Research 105

HeartRhythm

APRIL 9, 2025

Atrioventricular Nodal Reentrant Tachycardia (AVNRT) represents the most frequent, regular tachyarrhythmia in humans, but its exact circuit has so far remained elusive.

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Tachycardia Arrhythmia Ablation 40

ECG Guru

JULY 26, 2024

In order to differentiate supraventricular extrasystoles/tachycardias with aberrant conduction from ventricular extrasystoles/tachycardias, the search for P waves is often very important. Here are some examples of how the P waves can be positioned around the ventricular extrasystoles.

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Tachycardia 87