Premature Atrial Contractions Causes & Reasons

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Possible Causes

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]

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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]

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Multifocal Atrial Tachycardia

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

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Chronic Obstructive Pulmonary Disease

Symptoms and signs may include: Fatigue Dyspnea Paroxysmal nocturnal dyspnea (PND) Chest tightness Wheezing Cough with sputum (mucoid and/or purulent) Fever Chest pain Workup consists of a detailed history, tests and physical examination. Laboratory Tests Complete blood count Arterial blood gases Serum[…] [symptoma.com]

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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]

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Cor Pulmonale

Cor pulmonale is defined as an alteration in the structure and function of the right ventricle of the heart as a response to a disorder of the respiratory system. The chronic form usually leads to right ventricular hypertrophy, the acute form results in dilatation. The symptoms of cor pulmonale, pulmonary heart[…] [symptoma.com]

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Familial Isolated Dilated Cardiomyopathy

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]

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Hyperthyroidism

Please log in to edit this article. Edit German : Hyperthyreose, Hyperthyreoidismus, Schilddrüsenüberfunktion 1 Definition Hyperthyroidism means having abnormally high levels of thyroid hormones. Thyroid hormones, which are made by the thyroid gland in the lower front of the neck, regulate the body's energy. When[…] [flexikon.doccheck.com]

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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]

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Graves Disease

Graves disease is an autoimmune thyroid disorder characterized by hyperthyroidism, ophthalmopathy and goitre. The autoimmune process in Graves disease is influenced by a combination of environmental and genetic factors. The signs and symptoms of Graves' disease include insomnia, tremor, hyperactivity, hyperhidrosis,[…] [symptoma.com]

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Atrial Bigeminy

My sister, who is 35 weeks pregnant, found out approximately 5 weeks ago that her baby has (pac) premature atrial contractions with bigeminy. [medhelp.org]

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

Atrial premature contractions in bigeminy. [ecgwaves.com]

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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]

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Premature Ventricular Contraction

About PACs Premature atrial contractions (PACs) are premature heartbeats that are similar to PVCs, but occur in the upper chambers of the heart, an area known as the atria [umcvc.org]

Premature atrial contractions ( PACs ), also known as atrial premature complexes ( APC ) or atrial premature beats ( APB ), are a common cardiac dysrhythmia characterized [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]

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Ventricular Bigeminy

In atrial bigeminy, the other "twin" is a premature atrial contraction (PAC). After any PVC there is a pause that can lead to the development of bigeminy. [ecg-educator.blogspot.com]

Instead, the rhythm is atrial bigeminy in that every other beat is a premature atrial contraction (PAC). [ahcmedia.com]

The ectopic beat is typically a premature ventricular contraction (PVC). [ecg-educator.blogspot.com]

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Pulmonary Disorder

Key components in the evaluation of patients with pulmonary symptoms are the history, physical examination, and, in most cases, a chest x-ray. These components establish the need for subsequent testing, which may include pulmonary function testing and ABG analysis, CT or other chest imaging tests, and[…] [msdmanuals.com]

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Escape Beat

atrial contraction, premature ventricular contraction, etc. [inside.fammed.wisc.edu]

Premature atrial contractions (PACs), also known as atrial premature complexes (APC) or atrial premature beats (APB), are a common cardiac arrhythmia characterized by premature [allnurses.com]

B) Premature Beats. An ectopic pacemaker fires early before the next scheduled beat. Premature atrial contraction "PAC", early and differently shaped P wave, narrow QRS. [inside.fammed.wisc.edu]

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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. [www2.health.vic.gov.au]

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

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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]

atrial contraction (PAC) is blocked in the fast pathway with a longer refractory period, thus conduction flows down the slow pathway with a shorter refractory period. [alivecor.com]

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Cardiac Arrhythmia

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

Premature atrial contraction (PAC) is an irregular heartbeat with extra beats or premature beats from problems in the atria. [colonialhealthcare.com]

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]

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Premature Atrial Contractions

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]

AIMS: The aim of the study was to assess a possible circadian variation of premature atrial contractions (PACs) in a community-based population and to determine if the daily [ncbi.nlm.nih.gov]

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Sinoatrial Block

The premature atrial contractions traveled anterograde via the anomalous pathway and were blocked distally to the His bundle. [ncbi.nlm.nih.gov]

Blocked atrial premature contractions simulated 2:1 sinoatrial block because those were superimposed on the T wave of the preceding sinus beats and were not visible on the [ncbi.nlm.nih.gov]

Additionally, His bundle recordings and premature atrial stimulation demonstrated the presence of an atrio-His anomalous pathway. [ncbi.nlm.nih.gov]

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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]

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Conduction Disorder of the Heart

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]

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

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

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Amniotic Fluid Embolism

Amniotic fluid embolism is a rare, but potentially fatal condition that may occur during labor or the in early postnatal period. Presumably, entrance of amniotic fluid into the maternal circulation triggers an intense inflammatory response and leads to an abrupt onset of profound hypotension, heart failure,[…] [symptoma.com]

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Paroxysmal Ventricular Tachycardia

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

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

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]

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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]

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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]

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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]

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

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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]

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

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

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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 [jmedicalcasereports.com]

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