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.

Tachycardia 98

Tachycardia Outcomes 98

ECG Guru

OCTOBER 24, 2023

There are several differential diagnoses in the presence of broad-complex tachycardia. The most common cause of wide-complex tachycardia is ventricular tachycardia. In 2nd place is sinus tachycardia/supraventricular tachycardia with aberrant conduction or preexisting bundle branch block.

Tachycardia 52

Tachycardia 52

DAIC

JUNE 19, 2024

Cingolani, director of Cardiogenetics and Preclinical Research in the Department of Cardiology in the Smidt Heart Institute at Cedars-Sinai, is exploring new ways to help patients with ventricular tachycardia (VT), a recurring, abnormally fast and irregular heartbeat that starts in the lower chambers, or ventricles, of the heart.

Tachycardia 116

Tachycardia Cardiac Arrest Ablation Research 116

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 95

Tachycardia Atrial Flutter Exercise Blog 95

All About Cardiovascular System and Disorders

APRIL 23, 2024

Three or more ventricular beats in a row at a rate above 100 per minute is termed ventricular tachycardia. Ventricular tachycardia lasting more 30 seconds or requiring termination earlier due to hemodynamic compromise is called sustained ventricular tachycardia. Either case, the treatment is ablation of the right bundle.

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Tachycardia Ablation Myocardial Infarction Congenital 40

ECG Guru

DECEMBER 20, 2023

We see here a wide complex tachycardia with a frequency of approx. The short VT after the end of the sustained ventricular tachycardia with the same QRS morphology also indicates a ventricular origin of this arrhythmia. 105-110 beats per minute that lasts for a good minute.

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Tachycardia Arrhythmia 52

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.

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Tachycardia 75

Dr. Smith's ECG Blog

SEPTEMBER 27, 2023

ECG#1 There is a regular tachycardia with a ventricular rate of about 180 bpm. Smith comment : When there is a regular wide complex tachycardia, first assess whether it is sinus or not. Put shortly is SVT with "Shark Fin STE" and not ventricular tachycardia. An ECG was recorded immediately and is shown below. Is there OMI?

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Tachycardia Chest Pain Academic Arrhythmia 132

ECG Guru

DECEMBER 21, 2023

If ventricular tachycardia occurs in an Implantable Cardioverter Defibrillator (ICD) wearer, the ICD can combat this with 2 different forms of therapy, provided these are activated (which can be done using a programming device). First, the ICD attempts to override the tachycardia. The fastest pacemaker gets control of the heart.

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Tachycardia Defibrillator Pacemaker 58

HeartRhythm

JUNE 27, 2024

We found a narrow complex tachycardia of cycle 460 ms length ms which was repeatedly induced with atrial extrastimuli. During the tachycardia, 6 mg intravenous adenosine was given, which led to termination of tachycardia as shown in figure 1. What is the mechanism of the tachycardia?

Tachycardia 40

Tachycardia Electrophysiology Ablation Arrhythmia 40

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?

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Tachycardia Atrial Fibrillation AFIB Atrial Flutter 127

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 85

HeartRhythm

APRIL 30, 2024

Pericarditis is the most common complication following hybrid sinus node sparing ablation for Inappropriate Sinus Tachycardia (IST)/Postural Orthostatic Tachycardia Syndrome (POTS).

Pericarditis 40

Pericarditis Tachycardia POTS Ablation 40

HeartRhythm

APRIL 30, 2024

A novel sinus node (SN) sparing hybrid ablation for inappropriate sinus node tachycardia (IST)/Postural Orthostatic Tachycardia Syndrome (POTS) has been demonstrated to be an effective and safe therapeutic option in patients with symptomatic drug-resistant IST/POTS.

Tachycardia 40

Tachycardia POTS Ablation 40

ECG Guru

DECEMBER 18, 2023

If ventricular tachycardia occurs in an Implantable Cardioverter Defibrillator (ICD) wearer, the ICD can combat this with 2 different forms of therapy, provided these are activated (which can be done using a programming device). First, the ICD attempts to override the tachycardia. The fastest pacemaker gets control of the heart.

Tachycardia 52

Tachycardia Defibrillator Pacemaker 52

ECG Guru

JULY 26, 2023

In this ECG, at the beginning, the last part of a wide-complex tachycardia is visible. After 2 sinus beats, another wide-complex tachycardia begins (with the same QRS configuration). He experiences recurrent episodes of brief palpitations, often lasting only 5-15 seconds.

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Myocardial Infarction Tachycardia 52

Frontiers in Cardiovascular Medicine

JUNE 6, 2024

However, the association between chemotherapeutic agents and atrioventricular re-entrant tachycardia (AVRT)/atrioventricular node re-entrant tachycardia (AVNRT) remains poorly understood. Here, we report a patient with new-onset AVRT/AVNRT and lung cancer who underwent chemotherapy.

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Tachycardia Cancer Cardio Oncology Arrhythmia 40

Frontiers in Cardiovascular Medicine

JANUARY 10, 2024

However, widely split P' waves in focal atrial tachycardia (AT) on a surface electrocardiogram (ECG) have rarely been reported. An electrophysiological study showed that the tachycardia arose from the left atrial appendage (LAA) and was conducted through two distinct pathways.

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Tachycardia Electrophysiology Atrial Fibrillation Electrocardiogram 59

Journal of Cardiovascular Electrophysiology

JULY 16, 2024

Methods and Results A patient with three prior ablations targeting two different monomorphic ventricular tachycardias (MMVTs) presented with recurrent ventricular tachycardia (VT). Catheter ablation can be a life-saving procedure in some patients with recurrent drug-refractory ventricular arrhythmias.

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Tachycardia Ablation Arrhythmia 40

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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Aortic valve Tachycardia Coronary Artery Disease Atrial Fibrillation 102

ECG Guru

JULY 31, 2023

Broad complex tachycardia in a 78-year-old patient with coronary heart disease (CHD) and an old inferior myocardial infarction. Why is this a ventricular tachycardia (VT) and not a supraventricular tachycardia (SVT) with aberrant conduction? Broad complex tachycardia is generally about 80% likely to be ventricular in origin.

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Tachycardia Myocardial Infarction Heart Disease 52

HeartRhythm

JUNE 25, 2024

The concealed nodoventricular/nodofascicular (NV/NF) pathway is mostly a bystander, retrograde bypass tract connecting right ventricle/right bundle branch (RBB) and slow pathway (SP), which is observed in patients with atrioventricular nodal reentrant tachycardia (AVNRT).

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Tachycardia 45

HeartRhythm

APRIL 5, 2024

A 28-year-old man with recurrent palpitations and no structural heart disease presented with a documented wide QRS complex tachycardia (WCT). He had a history of slow pathway ablation for atrioventricular nodal reentrant tachycardia three months ago.

Tachycardia 40

Tachycardia Tricuspid Electrophysiology Document 40

Heart BMJ

MAY 23, 2024

He had previously undergone the placement of a dual-chamber implantable cardioverter-defibrillator for atrioventricular block and ventricular tachycardia (VT). He had a background of arrhythmic right ventricular cardiomyopathy.

Tachycardia 52

Tachycardia Defibrillator Cardiomyopathy 52

Journal of Cardiovascular Electrophysiology

JULY 24, 2024

Abstract Introduction Catheter-based radiofrequency (RF) ablation is generally regarded as the standard approach for patients with ventricular tachycardia (VT) refractory to antiarrhythmic drug therapy and may be considered as a first-line approach when there is a preference to avoid these agents.

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Ablation Tachycardia Article Stenosis 40

All About Cardiovascular System and Disorders

FEBRUARY 5, 2024

Supraventricular tachycardia ECG

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Tachycardia Electrophysiology 52

HeartRhythm

FEBRUARY 12, 2024

We would like to comment on the publication “Postural orthostatic tachycardia syndrome after COVID-19 vaccination [1].” This study evaluated patients who received the mRNA COVID-19 vaccine and then developed new or worsening symptoms of Postural Orthostatic Tachycardia Syndrome (POTS).

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COVID-19 Tachycardia POTS 40

HeartRhythm

JUNE 12, 2024

A 50-year-old woman was referred to our hospital for catheter ablation of a regular narrow QRS tachycardia with a short RP interval. A narrow QRS tachycardia was reproducibly induced by programmed atrial extrastimuli with an AH interval jump. No retrograde dual atrioventricular (AV) nodal physiology was observed.

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Tachycardia Electrophysiology Physiology Ablation 40

HeartRhythm

APRIL 30, 2024

Idiopathic fascicular ventricular tachycardia is a unique form of Purkinje-related reentrant monomorphic VT that occurs in the absence of structural heart disease. Here, we present a case of recurrent ventricular tachycardia. The VT can be classified in a left posterior, left anterior, or upper septal fascicular configuration.

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Tachycardia Heart Disease 40

ECG Guru

SEPTEMBER 10, 2023

Then, a polymorphic ventricular tachycardia occurs over 7 beats. The QT interval of the sinus beats does not appear prolonged, thus ruling out Torsades de Pointes tachycardia. The most likely cause of this type of polymorphic ventricular tachycardia during a stress EKG is cardiac ischemia/coronary artery disease.

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Tachycardia Coronary Artery Disease Ischemia 52

HeartRhythm

APRIL 8, 2024

Different types of recurrent atrial tachycardias (ATs) following Cox-Maze procedures have been reported, while biatrial tachycardia (BiAT) have not been systematically analyzed.

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Tachycardia Electrophysiology Ablation 40

HeartRhythm

APRIL 30, 2024

Supraventricular tachycardias are the most common arrhythmias that occur during pregnancy. Pharmacologic therapy is often preferred in pregnant patients. When pharmacologic therapy fails, fluoroless catheter ablation utilizing electroanatomic mapping systems and intracardiac echocardiography (ICE) may be considered.

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Tachycardia Pharmacology Ablation Arrhythmia 40

HeartRhythm

APRIL 30, 2024

His bundle is always part of an atrioventricular reentry tachycardia (AVRT) circuit, and His overdrive pacing (HOP) should result in responses consistent with entrainment within the circuit.

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Tachycardia 40

HeartRhythm

JUNE 27, 2024

Many genetic non-ischemic dilated cardiomyopathies (NICM) cause ventricular tachycardias (VT) originating from scar substrate identified as areas of low electrogram voltage. Substrate locations vary and the causes of scar are not well defined.

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Tachycardia Cardiomyopathy 40

HeartRhythm

APRIL 30, 2024

Ventricular tachycardia (VT) storm carries a high mortality rate. Rapid identification of the precipitating insult is crucial to optimize outcomes.

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Tachycardia Outcomes 40

HeartRhythm

APRIL 30, 2024

Biatrial tachycardias (BiAT) are rare form of macro-reentry atrial tachycardia (MRAT). BiAT should be considered when a portion of the AT cycle is missing in the chamber being mapped. Due to low prevalence, mapping and ablation strategies for BiAT are less well understood.

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Tachycardia Ablation 40

HeartRhythm

APRIL 30, 2024

Belhassen’s ventricular tachycardia is an uncommon arrhythmia in infants. Originating near the left posterior fascicle, it is initiated by supraventricular ectopy or sinus tachycardia and is uniquely sensitive to verapamil. Use of verapamil in infants is controversial due to risk of severe hemodynamic compromise.

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Tachycardia Arrhythmia Cardiomyopathy Ablation 40