Premature Atrial Contractions: Causes & Reasons

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Possible Causes for Premature Atrial Contractions

Multifocal Atrial Tachycardia

In several patients there seemed to be a transition from multifocal premature atrial contractions through chaotic atrial tachycardia to atrial fibrillation. [circ.ahajournals.org]

Six patients had 3 to 6 premature atrial contractions per minute. No adverse effects were noted, and arterial blood gases before and after therapy were comparable. [ncbi.nlm.nih.gov]

Unifocal or multifocal premature atrial contractions preceded the arrhythmia in 20 cases (64%). The arrhythmia developed during an acute illness in 18 cases (58%). [circ.ahajournals.org]

Atrial Bigeminy

|Multiple atrial premature complexes (disorder)|PAC - Premature atrial contraction|Premature atrial contraction|Premature atrial contraction (disorder)|Run of atrial premature [averbis.com]

Premature Atrial Contraction (PAC) [Online image]. [sites.google.com]

Atrial premature contractions in bigeminy. [ecgwaves.com]

Acute Atrial Infarction

Arrhythmias are quite common in the setting of atrial infarctions and include paroxysmal AF, wandering atrial pacemaker, premature atrial contractions and runs of atrial tachycardia [ncbi.nlm.nih.gov]

Sinus tachycardia with or without atrial premature contractions Sinus arrest Thromboembolic phenomena 84% Pulmonary emboli Systemic emboli Atrial rupture 4.5% Hemodynamic [ncbi.nlm.nih.gov]

TABLE 1 Atrial infarction complications Complication Incidence Rhythm disturbances 61%–74% Supraventricular tachycardia Atrial fibrillation Wandering atrial pacemaker [ncbi.nlm.nih.gov]

Atrial Arrhythmia

Premature Atrial Contraction (PAC or premature atrial impulses) - A common and benign arrhythmia, a PAC is a heartbeat that originates away from the sinus node, which sends [virginiaheart.com]

atrial contractions, premature ventricular contractions and premature junctional contractions.[3] Supraventricular tachycardias include atrial fibrillation, atrial flutter [en.wikipedia.org]

Premature Supraventricular Contractions Also called “premature atrial contractions” (PACs), they happen when the atria contract too soon, causing the heart to beat out of [texasheart.org]

Dilated Cardiomyopathy Type 3B

Stage I occurs in the second and third decades and is characterized by absence of symptoms, normal heart size, sinus bradycardia, and premature atrial contractions. [gwumc.edu]

Common etiologies include chronic untreated atrial fibrillation with rapid ventricular response and frequent (several thousand daily) premature ventricular contractions. [emedicine.medscape.com]

Fabry Disease

It is also appropriate to classify by site of origin: Atrial arrhythmia[edit] Sinus bradycardia Premature atrial contractions (PACs) Wandering atrial pacemaker Atrial tachycardia [en.wikipedia.org]

These are mainly the result of premature atrial contractions, usually give no symptoms, and have little consequence. [en.wikipedia.org]

Graves Disease

[…] fibrillation, and premature ventricular contractions, and hypertension.[7] People with hyperthyroidism may experience behavioral and personality changes, including: psychosis [en.wikipedia.org]

[…] diffusely enlarged (usually symmetric), nontender thyroid, lid lag, excessive lacrimation due to Graves' ophthalmopathy, arrhythmias of the heart, such as sinus tachycardia, atrial [en.wikipedia.org]

Chronic Alcoholism

The concept of "structural plasticity" has emerged as a potential mechanism in neurodegenerative and psychiatric diseases such as drug abuse, depression, and dementia. Chronic alcoholism is a progressive neurodegenerative disease while the person continues to abuse alcohol, though clinical and imaging studies show[…] [ncbi.nlm.nih.gov]

Chronic Obstructive Pulmonary Disease

Summary COPD (chronic obstructive pulmonary disease) makes it hard for you to breathe. The two main types are chronic bronchitis and emphysema. The main cause of COPD is long-term exposure to substances that irritate and damage the lungs. This is usually cigarette smoke. Air pollution, chemical fumes, or dust can[…] [medlineplus.gov]

Cor Pulmonale

Pulmonary heart disease Other names Cor pulmonale Right ventricular hypertrophy Specialty Pulmonology Symptoms Cyanosis, wheezing[1] Causes Primary pulmonary hypertension[2] Diagnostic method EKG, Thrombophilia screen [1] Treatment Vasodilators, Diuretics[3] Pulmonary heart disease, also known as cor pulmonale, is[…] [en.wikipedia.org]

Cardiac Arrhythmia

Ventricular Contractions (PVCs) Premature Atrial Contractions (PACs) Atrial Flutter Supraventricular Tachycardia (SVT) Complete Heart Block [women.texaschildrens.org]

Premature heart beats come in two different types, premature atrial contractions and premature ventricular contractions. [en.wikipedia.org]

Fetal cardiac arrhythmias are most often classified as one of the following: Bradycardia - Heart rate below 100 bpm Congenital heart block Premature atrial contractions (PAC [women.texaschildrens.org]

Hyperthyroidism

Hyperthyroidism usually begins slowly. At first, the symptoms may be mistaken for simple nervousness due to stress. If you have been trying to lose weight by dieting, you may be pleased with your success until the hyperthyroidism, which has quickened the weight loss, causes other problems. In Graves’ disease, which[…] [web.archive.org]

Paroxysmal Nodal Tachycardia

This arrhythmia can start suddenly after a premature atrial contraction which can be either atrial or junctional in nature. [youtube.com]

If a premature atrial contraction, or PAC, or less commonly a premature ventricular contraction, or PVC, occurs at the right time, the normal conduction pathway will still [healio.com]

premature contraction, atrial extrasystole, atrial premature beat, premature atrial beat premature atrial complex, premature atrial contraction 心室期外収縮 ventricular premature [jams.med.or.jp]

Supraventricular Tachycardia

This arrhythmia can start suddenly after a premature atrial contraction which can be either atrial or junctional in nature. [youtube.com]

Rapid re-initiation of tachycardia is not uncommon, mostly due to premature atrial contractions stimulated by the adenosine. [rch.org.au]

[…] classes of sustained supraventricular arrhythmias which are paroxysmal supraventricular tachycardia, fibrillation, flutter, multifocal atrial tachycardia, and paroxysmal atrial [youtube.com]

Acute Cor Pulmonale

OBJECTIVE: The indications for the use of thrombolytic agents in massive pulmonary embolism (MPE) remain controversial and it has been suggested that transthoracic echocardiographic (TTE) examination, which is able to detect an associated right ventricular dysfunction, may cast light on this question. The goal of[…] [ncbi.nlm.nih.gov]

Premature Ventricular Contraction

PVB (premature ventricular beat); Premature beats; PVC (premature ventricular complex/contraction); Extrasystole; Premature supraventricular contractions; PAC; Premature atrial [medlineplus.gov]

This can be either a premature atrial contraction or a premature impulse from the atrioventricular node. [en.wikipedia.org]

atrial contractions, from the left atrial appendage at a coupling interval of 200 ms in 7 healthy canines. [ncbi.nlm.nih.gov]

Supraventricular Tachycardia with Aberrant Conduction

Next chapter Premature Atrial Contractions (Atrial Beats / Extrasystoles) Related chapters Mechanisms of Cardiac Arrhythmias Premature Ventricular Contraction (Ventricular [ecgwaves.com]

The last beat in the above ECG is conducted aberrantly and is due to an atrial premature contraction (APC). [metealpaslan.com]

This could be due to rate variation, a concealed sinus block, or a premature atrial contraction (PAC). [ecgguru.com]

Conduction Disorder of the Heart

Abbreviations: AV : atrioventricular AVR : accelerated ventricular rhythm ECG : electrocardiogram PAC : premature atrial contraction PVC : premature ventricular contraction [pedsinreview.aappublications.org]

At least 3 distinct P-wave morphologies The PR Interval varies Ventricular rhythm is irregular Premature Beats Premature atrial contractions (PAC), Premature junctional complexes [smartypance.com]

Premature atrial contractions (PACs) and premature ventricular contractions (PVCs) Every person experiences the occasional palpitation in which the atrium or the ventricle [medicinenet.com]

Premature Atrial Contractions

premature atrial contractions. [ncbi.nlm.nih.gov]

In most patient, premature atrial contraction effects are not severe. [symptoma.com]

Echocardiography documented fetal premature atrial contractions after maternal hydralazine treatment for hypertension. [ncbi.nlm.nih.gov]

Paroxysmal Ventricular Tachycardia

[…] five by atrial premature contractions. [ncbi.nlm.nih.gov]

This arrhythmia can start suddenly after a premature atrial contraction which can be either atrial or junctional in nature. [youtube.com]

Atrial Tachyarrhythmia with Short PR Interval

Ectopic P waves are also commonly seen in multifocal atrial tachycardia, or MAT, wandering atrial pacemaker, and premature atrial contractions, or PACs. [healio.com]

Atrial premature beats (APB), or premature atrial contractions (PAC), are common episodic impulses. [merckmanuals.com]

Premature Atrial Contractions or Atrial Premature Beats (PAC's or APB's) : This is a single premature beat meaning that it occurs earlier than expected. [jan.ucc.nau.edu]

Neonatal Cardiac Arrhythmia

Abbreviations: AV, atrioventricular CAT, chaotic atrial tachycardia EAT, ectopic atrial tachycardia ECG, electrocardiograph PAC, preature atrial contraction SVT, supraventricular [hw-f5-neoreviews.highwire.org]

The most commonly diagnosed fetal arrhythmias are premature atrial contractions (PACs), which often resolve soon after birth. [accesspediatrics.mhmedical.com]

[…] tachycardia WPW, Wolff-Parkinson-White syndrome Abstract Several types of supraventricular tachyarrhythmias can occur in the fetus and neonate, including premature atrial [hw-f5-neoreviews.highwire.org]

Sinus Arrhythmia

Normal sinus P waves with a constant morphology (i.e. no evidence of premature atrial contractions). Constant P-R interval (i.e. no evidence of Mobitz I AV block ). [lifeinthefastlane.com]

Occasionally sinus arrhythmia may be mistaken for something more concerning, for example a true arrhythmia, such as premature atrial contractions or premature ventricular [kidsheartshouston.com]

At first glance it may look like atrial fibrillation, normal sinus rhythm with premature atrial contractions, sinoatrial block, or sinus pauses. [aibolita.com]

Atrioventricular Junctional Rhythm

Premature Depolarization Premature Atrial Contraction Atrial Bigeminy Ventricular Premature Depolarization Premature Ventricular Contraction Paroxysmal Atrial Tachycardia [play.google.com]

Atrial rhythms include 1. Wandering atrial pacemaker 2. Premature atrial contractions 3. Nonconducted premature atrial contractions 4. Atrial tachycardia 5. [andrews.edu]

Introduction : Atrial premature contractions (APCs) are commonly encountered in clinical practice. [pubfacts.com]

Acute Mountain Sickness

Acute mountain sickness is a type of altitude sickness which develops within a few hours of an unacclimatized individual ascending rapidly to a high altitude. It is characterized by sudden onset of a bitemporal headache, nausea, fatigue, dizziness and can be life-threatening with the development of cerebral or[…] [symptoma.com]

Amniotic Fluid Embolism

An amniotic fluid embolism (AFE) is a rare childbirth (obstetric) emergency in which amniotic fluid enters the blood stream of the mother to trigger a serious reaction. This reaction then results in cardiorespiratory (heart and lung) collapse and massive bleeding (coagulopathy). Amniotic fluid embolism is suspected[…] [en.wikipedia.org]

Incessant Infant Ventricular Tachycardia

There are many types of arrhythmias, including: Premature Atrial Contraction (PAC) and Premature Ventricular Contraction (PVC) Premature contractions are usually considered [kidshealth.org]

Premature supraventricular contractions or premature atrial contractions (PAC) - a condition in which the sinus node or another pacemaker site above the ventricles sends out [chw.org]

Abnormal atrial activation associated with atrial premature contractions, supraventricular tachycardia (SVT), junctional rhythm with retrograde conduction, or AV dissociation [glowm.com]

Pneumopericardium

These findings may be non-specific ST-segment or T-wave changes, axis deviation and dysrhythmias, such as premature atrial contractions, bundle branch blocks and ventricular [doi.org]

Cardiac Glycoside Poisoning

Electrocardiogram revealed a first-degree atrioventricular conduction block with premature atrial contractions, followed by polymorphic ventricular tachycardia three hours [ncbi.nlm.nih.gov]

Tachyarrhythmia

In patients with CHA 2 DS 2 -VASc score of 0 or 1, age (>61 years old) and burden of premature atrial contractions (>25 beats/d) independently predicted the risk of stroke [ncbi.nlm.nih.gov]

A fetus with premature atrial contractions converted to supraventricular tachycardia immediately after vibroacoustic stimulation. [ncbi.nlm.nih.gov]