• Catheter ablation (CA) is an effective treatment for atrial arrhythmias in the general population. (univpm.it)
  • The median follow-up period was 27 (13-67) months, and 96%, 74%, and 61% of patients undergoing AF ablation were free from any atrial arrhythmia recurrence after a single procedure at 6 months, 12 months, and last follow-up, respectively. (univpm.it)
  • All patients undergoing CTI ablation were free from atrial arrhythmia recurrences at 6 months, with 89% single-procedural arrhythmic freedom at last follow-up. (univpm.it)
  • In selected cases, a "catheter ablation" procedure can be performed to cure the arrhythmia. (cincinnatichildrens.org)
  • Her primary interests are in cardiac arrhythmias, engaging full range of catheter-based endocardial and epicardial ablation therapies, complex ablations, pacemakers, defibrillator implants, and lead extractions. (mayoclinic.org)
  • I am trained in all aspects of cardiac arrhythmia management including catheter ablation, pacemaker/defibrillator implantation, cardiac resynchronisation therapy and system extraction. (spirehealthcare.com)
  • These fibrillatory waves lead to an irregular rapid ventricular response. (cyberounds.com)
  • Inside the hospital's Emergency Department, an electrocardiogram (EKG) showed the Trainee was suffering from a heart attack and a cardiac arrhythmia (atrial fibrillation with rapid ventricular response). (cdc.gov)
  • Background: Atrial arrhythmias are present in up to 20% of patients with arrhythmogenic right ventricular cardiomyopathy (ARVC). (univpm.it)
  • MAs may be manifested either in hemodynamic collapse or in cardiac arrest: The sudden loss of effective blood flow due to atrial fibrillation (AF) with rapid VT leads to hemodynamic collapse, and VT and VF result in cardiac arrest necessitating CPR or electric defibrillation. (medscape.com)
  • Preventing ventricular arrhythmias and sudden cardiac death in adults with repaired tetralogy of Fallot: a never-ending story? (revespcardiol.org)
  • This can lead to heart failure, atrial fibrillation, and sudden death due to ventricular arrhythmias. (cdc.gov)
  • These effects could increase the risk for atrial or ventricular fibrillation and sudden cardiac arrest. (sciencedaily.com)
  • Arrhythmias can increase the risk of sudden cardiac arrest and Atrial fibrillation (AFIb) and can cause strokes. (earth.com)
  • Obesity, ventricular arrhythmias, and sudden cardiac death. (escardio.org)
  • I also evaluate patients for possible genetic causes for sudden cardiac arrest or arrhythmias. (dukehealth.org)
  • My research interests include: atrial fibrillation, sudden cardiac death, inherited arrhythmias, sports cardiology, implantable defibrillator (ICD), and cardiac resynchronization therapy (CRT, or bi-ventricular pacing) indications and programming, and inappropriate shocks. (dukehealth.org)
  • When the patient changes to left lateral decubitus, there could be a sudden release of the inferior vena cava, causing an abrupt augmentation of venous return to the right heart chambers and increasing the risk of arrhythmias. (hindawi.com)
  • Ventricular arrhythmia (VA) may be an isolated and completely benign finding in children, a marker of serious systemic disease or myopathy, or a mechanism for syncope and sudden cardiac death (SCD). (medscape.com)
  • BrS is associated with an increased risk of syncope, palpitations, chest pain, convulsions, difficulty in breathing (nocturnal agonal breathing) and/or Sudden Cardiac Death (SCD) secondary to PVT/VF, unexplained cardiac arrest or documented PVT/VF or Paroxysmal atrial fibrillation (AF) in the absence of apparent macroscopic or structural heart disease, electrolyte disturbance, use of certain medications or coronary heart disease and fever. (bvsalud.org)
  • In particular, ICMs may have an emerging role in the management of patients with atrial fibrillation and in those at risk of ventricular arrhythmias. (medscape.com)
  • We aimed to identify right ventricular (RV) electrophysiological parameters potentially associated with a higher risk of ventricular arrhythmias in patients with rTOF. (revespcardiol.org)
  • When you have atrial fibrillation (AFib), the medications your doctor gives you are designed to keep your heart rate under control. (webmd.com)
  • This could lead to irregular or fast heart rates that cause AFib or other arrhythmias. (webmd.com)
  • If you have a history of AFib or other arrhythmias, avoid OTC drugs that contain a decongestant. (webmd.com)
  • By implementing dedicated algorithms and sensing parameters similar to those of implanted cardioverter defibrillators (ICDs) and pacemakers, the new-generation ICMs are also able to automatically detect (i.e. without any active intervention by the patient) any kind of arrhythmic event (Fig. 1): from bradycardia to asystole, and from atrial fibrillation (AF) to ventricular tachycardia. (medscape.com)
  • An arrhythmia can present itself as either bradycardia or tachycardia. (wikipedia.org)
  • This software is capable of simulating sinus rhythm, episodes of atrial fibrillation and atrial premature beats in ECGs and PPGs as well as extreme bradycardia and ventricular tachycardia in PPGs. (physionet.org)
  • Amiodarone and Ocular Toxicity An arrhythmia is a problem associated with the electrical activity of the heart resulting in a heartrate that can be too fast (tachycardia) or too slow (bradycardia). (bartleby.com)
  • Fast arrhythmias that originate from the lower chambers (i.e., the ventricles) are called ventricular tachycardias. (cincinnatichildrens.org)
  • Hereditary primary electrical disorders account for up to 1/3 of all SCD cases in younger individuals and include conditions such as catecholaminergic polymorphic ventricular tachycardia (CPVT). (sfu.ca)
  • December 7, 2020-There were two changes to the performance measures , both prompted by recent changes to the 2019 AHA/ACC/HRS Focused Update of the 2014 AHA/ACC/HRS Guideline for the Management of Patients With Atrial Fibrillation . (hrsonline.org)
  • Frequently, patients with atrial fibrillation will need to take a blood thinner. (prweb.com)
  • Atrial fibrillation (AF) is defined as a tachyarrhythmia of supraventricular origin leading to deterioration in mechanical function of the … atrium. (cyberounds.com)
  • The study sample was drawn from patients nant ventricular tachyarrhythmia [ 2 ]. (who.int)
  • Pulmonic valvular stenosis (PVS) is a form of right ventricular outflow tract obstruction (RVOTO). (medscape.com)
  • The pulmonary annulus and the right ventricular outflow tract (RVOT) may be narrowed as well. (medscape.com)
  • The syndrome is caused by changes in the structure and function of certain cardiac ion channels and reduced expression of Connexin 43 (Cx43) in the Right Ventricle (RV), predominantly in the Right Ventricular Outflow Tract (VSVD), causing electromechanical abnormalities. (bvsalud.org)
  • Arrhythmia happens when the heart beats in an abnormal way. (healthline.com)
  • But sometimes the electrical signals are abnormal, and the heart can start beating in a different rhythm - this is an arrhythmia (also called dysrhythmia). (kidshealth.org)
  • This can lead to abnormal heartbeats ( arrhythmias ) and faulty heart signals (heart block). (medlineplus.gov)
  • The overall pattern of cellular organization in working atrial, ventricular and conducting tissue is reviewed, and possible anatomic bases for current theories of normal and abnormal impulse generation and conduction in the heart are discussed. (johnshopkins.edu)
  • Abnormal heart rhythms called arrhythmias are common conditions impacting the heart's electrical system. (nationaljewish.org)
  • In addition, I evaluate athletes with cardiac conditions, focusing on arrhythmias and abnormal electrocardiograms. (dukehealth.org)
  • Several kinds of arrhythmias result from inherited conditions that cause congenital heart defects . (healthline.com)
  • Lastly, we used the ventricular/atrial models to visualize gating defects on cardiac excitability.Results: Voltage-dependences of both activation and inactivation were right-shifted, the overlap between activation and inactivation predicted increased window currents, the recovery from fast inactivation was slowed, there was no significant difference in late currents, and there was no difference in use-dependent inactivation. (sfu.ca)
  • In many cases, we are able to cure the arrhythmia so patients do not need to be on medication long term. (nationaljewish.org)
  • Overall, Lorcainide causes a decrease in tachycardiac events, but also reduced ventricular contractility ejection fraction. (wikipedia.org)
  • Left ventricular ejection fraction and volume measurements provide information regarding the prognosis and management of a large proportion of patients suffering from cardiovascular diseases (1-4) and 2D-echo is the most frequently used diagnostic tool (5). (escardio.org)
  • It is now feasible to perform a quantitative assessment of left ventricular volume and ejection fraction with accurate results. (escardio.org)
  • Complications vary based on the type of arrhythmia. (healthline.com)
  • Knowing which type of arrhythmia you have is key to understanding its severity and your treatment options. (prweb.com)
  • The type of arrhythmia depends on the irregularity it causes and in what part of your heart - the upper (atria) or lower (ventricular) chambers. (prweb.com)
  • Arrhythmia is an irregular heart rhythm. (healthline.com)
  • Symptoms of arrhythmia in children vary depending on a child's age and which particular condition is causing the irregular heart rhythm. (healthline.com)
  • If you have arrhythmia, your heartbeat will be irregular, and the electrical signals that regulate your heartbeat are not working properly. (uchicagomedicine.org)
  • Used parenterally (preferably IM) in the treatment of arrhythmias that occur during surgery and anesthesia. (drugs.com)
  • Cardiac Pacemakers The need for treatment of arrhythmias depends on the symptoms and the seriousness of the arrhythmia. (msdmanuals.com)
  • Antiarrhythmic drug reference The need for treatment of arrhythmias depends on the symptoms and the seriousness of the arrhythmia. (msdmanuals.com)
  • A cardiac dysrhythmia is a disturbance in the cardiac rhythm which can be normal (e.g., sinus arrhythmia) or instantly lethal (e.g., sustained ventricular tachycardia). (elsevier.ca)
  • Patients who experienced arrhythmia during HD had higher left ventricular mass and left ventricular mass index, lower post-dialysis K+ level, higher QTc and QTdc both before and after HD. (who.int)
  • But to calculate left ventricular volumes, first-generation scanners offer such limited image quality that offline manual tracings of endocardial borders are still needed when using these scanners. (escardio.org)
  • Recently, a new technique for semiautomated detection of left ventricular endocardial borders from 3D images obtained from transthoracic 3D-echo datasets is available. (escardio.org)
  • It analyses 3D-echo datasets by performing a semiautomated left ventricular endocardial surface detection. (escardio.org)
  • The resulting left ventricular volumes can be visualised from different points of view, and can be quantified. (escardio.org)
  • Furthermore, the global left ventricular volume can be divided into 17 segments so as to be able to assess the alterations in the regional systolic function of the left ventricle (figure 2). (escardio.org)
  • The maintenance infusion of up to 0.5 mg/min can be cautiously continued for 2 to 3 weeks regardless of the patient's age, renal function, or Left-ventricular function. (globalrph.com)
  • may aggravate angina pectoris or produce ventricular arrhythmias. (nih.gov)
  • Ventricular tachycardia can increase the risk of heart attacks. (healthline.com)
  • The heart normally beats in a regular rhythm, but an arrhythmia (ay-RITH-mee-uh) can make it beat too slowly, too quickly, or irregularly. (kidshealth.org)
  • Arrhythmias make the heart beat less effectively, interrupting blood flow to the brain and the rest of the body. (kidshealth.org)
  • In these cases, the arrhythmia is only found during a physical exam or a heart function test. (kidshealth.org)
  • Ventricular tachycardia is a serious but uncommon condition that starts in the lower chambers of the heart and can be dangerous. (rchsd.org)
  • May 20, 2023-The Heart Rhythm Society (HRS), Asia Pacific Heart Rhythm Society (APHRS), and Latin American Heart Rhythm Society (LAHRS) have partnered to provide guidance on cardiac physiologic pacing strategies to restore ventricular synchrony and improve cardiac performance. (hrsonline.org)
  • May 19, 2023- The Heart Rhythm Society (HRS) released a new expert consensus statement on the management of cardiac arrhythmias during pregnancy. (hrsonline.org)
  • The first, which impacts all the performance measures (see Appendix A, for the changes and measure specifications), is the clarification that valvular atrial fibrillation is atrial fibrillation with either moderate or severe mitral stenosis or a mechanical heart valve. (hrsonline.org)
  • Lorcainide (Lorcainide hydrochloride) is a Class 1c antiarrhythmic agent that is used to help restore normal heart rhythm and conduction in patients with premature ventricular contractions, ventricular tachycardiac and Wolff-Parkinson-White syndrome. (wikipedia.org)
  • The atrio-ventricular node (A-V node) is located between the upper and lower chambers of the heart. (cincinnatichildrens.org)
  • When the source of the fast heart rhythm is the lower chambers (ventricles), ventricular tachycardia (VT) is present. (cincinnatichildrens.org)
  • A new study has found that exposure to e-cigarette aerosols can cause heart arrhythmias in animal models -- both in the form of premature and skipped heart beats. (sciencedaily.com)
  • In addition, e-cigarette puffs from a menthol-flavored e-liquid or from propylene glycol alone caused ventricular arrhythmias and other conduction irregularities in the heart. (sciencedaily.com)
  • The links between caffeine and an increased risk of heart disease are not well defined, and there is a great deal of conflicting research on how exactly caffeine affects heart problems like arrhythmias. (earth.com)
  • The results of the study help clarify the links between caffeine and some heart conditions, and possibly proves that coffee, to some extent, is beneficial for people with heart arrhythmias. (earth.com)
  • Since my appointment as a Consultant Cardiologist and Cardiac Electrophysiologist at the Bristol Heart Institute in 2009, I have led the development and continued expansion of the Arrhythmia Service. (spirehealthcare.com)
  • Adenosine can be a scary drug to administer as it blocks the atrial-ventricular communication, causing the heart to stop briefly. (bellaonline.com)
  • Arrhythmias are generally categorized as ventricular or supraventricular.1 Ventricular arrhythmias are a condition in which extra heartbeats originate from the lower chambers of the heart and can be classified as ventricular tachycardia, ventricular fibrillation, or premature ventricular contractions. (bartleby.com)
  • Supraventricular arrhythmias originate in the upper chambers of the heart and can be less serious than ventricular arrhythmias. (bartleby.com)
  • A cardiac arrhythmia can happen to anyone, no matter the age, race, or gender, and as such, doctors and scientist have spent years trying to better understand the heart and the way it functions so that they can try to prevent these problems and save millions of lives. (bartleby.com)
  • Electrophysiology experts at the University of Chicago Medicine Center for Arrhythmia Care are leaders in the diagnosis and treatment of the entire spectrum of heart rhythm disorders (arrhythmias). (uchicagomedicine.org)
  • Our team of electrophysiologists (physicians who specialize in arrhythmias) are focused on delivering individualized care that offers a comprehensive management plan for your arrhythmia and any underlying condition(s) that may be intensifying or causing the heart rhythm disorder. (uchicagomedicine.org)
  • There are several risk factors that increase your likelihood of heart arrhythmia, such as current lifestyle choices or a pre-existing heart condition that can impact your heartbeat. (uchicagomedicine.org)
  • Our arrhythmia specialists are committed to improving the lives of our patients through ongoing innovation and discovery in order to provide the most complete heart rhythm care possible. (uchicagomedicine.org)
  • Arrhythmias are the most common cardiac complication during gestational period and may occur in women with or without known structural heart disease. (hindawi.com)
  • Arrhythmia may occur in women with or without known structural heart disease. (hindawi.com)
  • Atrial premature complexes (APC), ventricular premature complexes (VPC), and supraventricular tachyarrhythmias are more prevalent than ventricular tachycardia, especially in women without structural heart disease. (hindawi.com)
  • There was no history of known structural heart disease, arrhythmias or prior unexplained syncope. (hindawi.com)
  • Heart rate (a) and ventricular premature complexes (b) during 24-hour Holter monitoring. (hindawi.com)
  • Despite supportive measures in the field and en route to the hospital, the Trainee remained in a semi-conscious state, with low blood pressure, and a fast heart rate. (cdc.gov)
  • Overview of Arrhythmias The normal heart beats in a regular, coordinated way because electrical impulses generated and spread by myocytes with unique electrical properties trigger a sequence of organized myocardial. (msdmanuals.com)
  • HN - 2008 BX - Lateral Sinus MH - Atrial Septum UI - D054087 MN - A07.541.459.249 MS - The thin membrane-like muscular structure separating the right and the left upper chambers (HEART ATRIA) of a heart. (bvsalud.org)
  • This issue of Critical Care Nursing Clinics of North America will provide state of the art diagnostic and treatment information for cardiac dysrhythmias as well as addressing how to achieve the most accurate diagnostic approach to interpreting an electrocardiogram, which is omnipresent in critical care and of critical importance in diagnosing arrhythmias. (elsevier.ca)
  • Fast-acting voltage-gated sodium channels (Nav1.5) found in high concentrations in the ventricular myocytes, open at a membrane potential of −80 mv in typical cardiac rhythm. (wikipedia.org)
  • Besides the mechanism of the rhythm, arrhythmias are divided based on location of their origin. (cincinnatichildrens.org)
  • Atrial fibrillation in the setting of aortic stenosis is considered a medical emergency, and sinus rhythm should be restored urgently in patients who are hemodynamically unstable. (medscape.com)
  • Cardiovascular adaptations to pregnancy may trigger arrhythmias and/or exacerbate preexisting ones [ 3 ]. (hindawi.com)
  • The more the arrhythmia affects blood flow, the more severe the condition. (prweb.com)
  • Because of procainamide's arrhythmogenic potential, lack of evidence for improved survival for class I antiarrhythmic agents, and risk of serious, potentially fatal adverse hematologic effects (see Boxed Warning), particularly leukopenia or agranulocytosis, use for less severe arrhythmias not recommended. (drugs.com)
  • The researchers were able to determine that caffeine does not impact ventricular arrhythmias and that drinking up to six cups of coffee a day did not make ventricular arrhythmias any more severe or frequent. (earth.com)
  • Patients with severe dyspnoea, atrial fibrillation and cardiac arrhythmias, for instance, cannot easily be studied in this way. (escardio.org)
  • Class 1c drugs have a characteristically slow dissociation rate, which will slow the upstroke duration and amplitude of ventricular myocytes' action potential and prolong the PR, QRS and QT intervals of an ECG. (wikipedia.org)
  • Class I drugs are sodium channel blockers (membrane-stabilizing drugs) that block fast sodium channels, slowing conduction in fast-channel tissues (working atrial and ventricular myocytes, His-Purkinje system). (msdmanuals.com)
  • Expert electrophysiologists reviewed the ventricular tachycardia/ventricular fibrillation (VT/VF) episodes electrograms, stored in the device memory, and classified appropriate detections, inappropriate detection mechanisms and ICD therapy outcomes. (bmj.com)
  • At National Jewish Health, our electrophysiologists diagnose and treat arrhythmia patients from Denver and throughout Colorado. (nationaljewish.org)
  • Finally, the ability of new-generation ICMs to automatically record arrhythmic episodes suggests that these devices could also be used to study asymptomatic arrhythmias, and thus could be proposed for the long-term evaluation of the total (symptomatic and asymptomatic) arrhythmic burden in patients at risk of arrhythmic events. (medscape.com)
  • Premature extra beats and sustained tachyarrhythmias are the most common arrhythmias in pregnancy. (hindawi.com)
  • Reentrant arrhythmia depends on a circuit, often caused by surgical scar, fibrosis, or fatty degeneration. (medscape.com)
  • depends on the symptoms and the seriousness of the arrhythmia. (msdmanuals.com)
  • What are the symptoms of arrhythmia in children? (healthline.com)
  • What Are the Signs & Symptoms of an Arrhythmia? (kidshealth.org)
  • In infants, fast arrhythmias are more difficult to detect as they will not complain of symptoms. (cincinnatichildrens.org)
  • Knowing the symptoms of arrhythmia can help you recognize any issues early and seek help sooner. (uchicagomedicine.org)
  • However, even an arrhythmia that does not produce obvious symptoms could still lead to serious complications and require medical attention. (uchicagomedicine.org)
  • If you have one or more risk factors for arrhythmia and/or are experiencing one or more of the symptoms listed above, please consult with your physician. (uchicagomedicine.org)
  • Isolated premature ventricular contractions (PVCs) are reasonably common. (medscape.com)
  • The O'Hara-Rudy model suggests ventricular after depolarizations and atrial Grandi-based model suggests a slight prolongation of atrial action potential duration.Conclusion: We conclude that T1857I likely causes a net gain-of-function in Nav1.5 gating, which may in turn lead to ventricular after depolarization, predisposing carriers to tachy-arrhythmias. (sfu.ca)
  • For 2 patients, QT-interval prolongation but no arrhythmias occurred. (cdc.gov)