Possible Causes for premature atrial contractions 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] 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] 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] Chronic Obstructive Pulmonary Disease Spontaneous globe luxation is a rarely reported condition which can lead to complications like optic neuropathy. Common causes are thyroid eye disease, shallow orbit and floppy eyelid syndrome. We report a case of spontaneous globe luxation with the onset and severity associated with chronic obstructive pulmonary[…] [ncbi.nlm.nih.gov] 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] Cor Pulmonale From Wikidata Jump to navigation Jump to search congestive heart failure that involves a failure of the right side of the heart and is characterized by an enlargement of the right ventricle of the heart as a response to increased resistance or high blood pressure in the lungs pulmonary heart disease[…] [wikidata.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] 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] Fabry Disease atrial contractions, premature ventricular contractions and premature junctional contractions.[3] Supraventricular tachycardias include atrial fibrillation, atrial flutter [en.wikipedia.org] 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 Thyrotropin-producing pituitary tumor is relatively rare. In particular, concurrent cases associated with Graves' disease are extremely rare and only nine cases have been reported so far. We describe a case of a thyrotropin-producing pituitary adenoma concomitant with Graves' disease, which was successfully[…] [ncbi.nlm.nih.gov] 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] 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 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] 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] 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] 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] 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] Premature Atrial Contractions 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] 12 Premature Atrial Contractions / Atrial Bigeminy: Every Other Beat Is a PAC Heart Rate Rhythm P Wave PR Interval (in seconds) QRS (in seconds) N/A Irregular Premature [micunursing.com] 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] Acute Mountain Sickness OBJECTIVES: Elevated optic nerve sheath diameter on sonography is known to correlate with increased intracranial pressure and is observed in acute mountain sickness. This study aimed to determine whether optic nerve sheath diameter changes on ascent to high altitude are associated with acute mountain sickness[…] [ncbi.nlm.nih.gov] 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] Amniotic Fluid Embolism AFE (amniotic fluid embolism) is widely known as a disastrous rapid-progressing clinical entity. The incident ranges from 1:800 to 1:8,000. The mortality rate reaches 61-86%. Neonatal survival is reported at 70%. We describe the case of a healthy 29-year old primigravida developing amniotic fluid embolism during labour.[…] [ncbi.nlm.nih.gov] 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] 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] 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] 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] 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] 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] Acute Alcohol Intoxication # Contributed equally Abstract Acute excessive alcohol consumption is associated with heart rhythm disorders like atrial fibrillation but also premature ventricular contractions [ncbi.nlm.nih.gov] 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]
