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Related Concept Videos

Dysrhythmias IV: Characteristics of Bradyarrhythmias01:18

Dysrhythmias IV: Characteristics of Bradyarrhythmias

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...
Electrophysiology of Normal Cardiac Rhythm01:19

Electrophysiology of Normal Cardiac Rhythm

The normal cardiac rhythm is a synchronized electrical activity that facilitates the regular and coordinated contraction of the heart muscle. This process is essential for efficient blood circulation throughout the body. The fundamental elements involved in establishing and maintaining this rhythm include the unique electrical properties of cardiac muscle cells, the sinoatrial (SA) node's pacemaker function, the specialized conducting system, and the ionic mechanisms underlying each phase of...
Dysrhythmias I: Introduction01:15

Dysrhythmias I: Introduction

Dysrhythmias refers to abnormalities in the heart's rhythm. They result from disruptions in the heart's electrical conduction system, which includes the sinoatrial(SA)node, atrioventricular(AV) node, the bundle of His, bundle branches, and Purkinje fibers.Definition and PathophysiologyDysrhythmias result from disorders of impulse formation, impulse conduction, or both. The heart contains specialized cells in the sinoatrial node, atrioventricular node, and the bundle of His and Purkinje fibers...
Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

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...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
Electrocardiogram01:29

Electrocardiogram

An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...

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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
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Diffuse inverted T waves in a young man with structurally normal heart: a case report.

Bita Omidvar1, Shahla Majidi, Mehrdad Raadi

  • 1Department of Internal Medicine, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
|July 25, 2013
PubMed
Summary

Transient T-wave inversion in young men experiencing chest pain can indicate underlying ventricular tachycardia. Successful ablation of the arrhythmia resolved these cardiac changes, highlighting a key diagnostic and treatment pathway.

Keywords:
idiopathic ventricular tachycardiainverted T wavememory T wave

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Area of Science:

  • Cardiology
  • Electrophysiology
  • Internal Medicine

Background:

  • Transient T-wave inversion is an electrocardiographic finding that can be associated with various cardiac conditions.
  • Idiopathic left septal ventricular tachycardia is a relatively uncommon arrhythmia originating from the ventricular septum.

Observation:

  • A young male patient presented with recurrent episodes of chest pain and dyspnea.
  • Electrocardiogram (ECG) revealed transient T-wave inversion in precordial and inferior leads during these episodes.
  • Comprehensive cardiovascular evaluation, including structural assessments, showed no underlying cardiac abnormalities.

Findings:

  • The transient T-wave inversions were identified as 'memory T waves' following episodes of idiopathic left septal ventricular tachycardia.
  • These ECG changes resolved completely after successful ablation of the ventricular tachycardia.

Implications:

  • This case highlights the importance of considering ventricular tachycardia in young patients with unexplained chest pain and transient ECG abnormalities.
  • Memory T waves can serve as a diagnostic clue for specific arrhythmias.
  • Successful arrhythmia ablation can lead to the resolution of associated electrocardiographic changes and symptoms.