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Related Concept Videos

Dysrhythmias III: Characteristics of Dysrhythmias01:29

Dysrhythmias III: Characteristics of Dysrhythmias

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Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per...
19
Dysrhythmias II: Classification of Tachyarrhythmias01:28

Dysrhythmias II: Classification of Tachyarrhythmias

21
Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...
21
Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

1.1K
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
1.1K
Increased pulse rate01:17

Increased pulse rate

710
Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
710
Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

17
Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...
17
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

70
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
70

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Updated: Aug 13, 2025

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
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Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction

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[Supraventricular tachycardia].

Thomas Kleemann1

  • 1Medizinische Klinik B, Klinikum Ludwigshafen, Bremserstr. 79, 67063, Ludwigshafen, Deutschland. kleemann.thomas@web.de.

Herz
|January 24, 2023
PubMed
Summary
This summary is machine-generated.

Supraventricular tachycardia (SVT) is a common and usually benign heart rhythm disorder. This article reviews SVT diagnosis and treatment, excluding atrial fibrillation.

Keywords:
AdenosineAtrial flutterAtrioventricular nodal reentry tachycardiaPregnancyWolff-Parkinson-White syndrome

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Area of Science:

  • Cardiology
  • Electrophysiology

Context:

  • Supraventricular tachycardia (SVT) is frequently encountered in clinical settings by physicians.
  • SVT can present challenges in diagnosis and management.
  • Despite potential disruption, SVT is generally a treatable and often curable condition.

Purpose:

  • To outline the differential diagnoses of supraventricular tachycardia.
  • To detail the available treatment options for supraventricular tachycardia.
  • To provide a clinical overview for physicians managing SVT.

Summary:

  • This article focuses on the diagnosis and management of supraventricular tachycardia, a common cardiac arrhythmia.
  • It explores various differential diagnoses for SVT.
  • Treatment strategies for SVT are discussed, emphasizing its generally benign and curable nature.

Impact:

  • Enhances physician understanding of supraventricular tachycardia diagnosis and treatment.
  • Aids in the effective management of a common cardiac condition.
  • Contributes to improved patient outcomes through timely and appropriate SVT care.