• Dofetilide is used for the maintenance of sinus rhythm in individuals prone to the occurrence of atrial fibrillation and flutter arrhythmias, and for chemical cardioversion to sinus rhythm from atrial fibrillation and flutter. (wikipedia.org)
  • Based on the results of the Danish Investigations of Arrhythmias and Mortality on Dofetilide ("DIAMOND") study, dofetilide does not affect mortality in the treatment of patients post-myocardial infarction with left ventricular dysfunction, however it was shown to decrease all-cause readmissions as well as CHF-related readmissions. (wikipedia.org)
  • It has clinical advantages over other class III antiarrhythmics in chemical cardioversion of atrial fibrillation, and maintenance of sinus rhythm, and does not have the pulmonary or hepatotoxicity of amiodarone, however atrial fibrillation is not generally considered life-threatening, and dofetilide causes an increased rate of potentially life-threatening arrhythmias in comparison to other therapies. (wikipedia.org)
  • Direct current cardioversion is a well-established and safe procedure to restore normal sinus rhythm for atrial and ventricular arrhythmias. (biomedcentral.com)
  • Many types of irregular heart rhythms (arrhythmias) can cause tachycardia. (mayoclinic.org)
  • As with most symptomatic arrhythmias, conversion should ideally be achieved before transfer, except in the case of a hemodynamically stable patient referred to an institution with clearly superior expertise and facilities for management of pediatric atrial flutter. (medscape.com)
  • They are usually associated with abnormal rhythms  (arrhythmias). (premierhospital.in)
  • And I think these patients deserve very close surveillance and monitoring to look for recurrent atrial arrhythmias and even potentially in the future, depending on their risk of AF vs hemorrhagic events, consider either left atrial appendage occlusion or ablation," he added. (medscape.com)
  • 427.8 Other specified cardiac dysrhythmias 427.81 Sick sinus syndrome 427.89 Sinus bradycardia, NOS 427.9 Cardiac dysrhythmia unspecified Gallop rhythm 428 Heart failure 428.0 Congestive heart failure unspecified 428.1 Left heart failure Pulmonary edema, acute 428.2 Systolic heart failure 428.3 Diastolic heart failure 428.4 Heart failure, combined, unspec. (wikipedia.org)
  • The antiarrhythmic effect is due to an increase in the 3 phase action potential, mainly due to a decrease in the current of potassium through the channels of the cell membranes of the cardiomyocytes, and a decrease in the automatism of the sinus node (which leads to bradycardia not responding to atropine). (bestpharmbuy.com)
  • Accepted patient conditions warranting chronic cardiac pacing include symptomatic paroxysmal or permanent second- or third-degree AV block, symptomatic bilateral bundle branch block, symptomatic paroxysmal or transient sinus node dysfunctions with or without associated AV conduction disorders, or bradycardia-tachycardia syndrome to prevent symptomatic bradycardia or some forms of symptomatic tachyarrhythmias. (medtronic.com)
  • Antitachycardia pacing (ATP) is indicated for termination of atrial tachyarrhythmias in bradycardia patients with one or more of the above pacing indications. (medtronic.com)
  • Bradycardia due to blocked atrial bigeminy. (acc.org)
  • Tachycardia may or may not be present, depending on the degree of AV block associated with the atrial flutter activity. (medscape.com)
  • 3 atrial flutter requiring electrical or medical cardioversion and ablations, 1 non-sustained ventricular tachycardia and 4 bradyarrhythmias requiring permanent pacemaker insertion. (bmj.com)
  • However, accurate diagnostic workup of broad complex tachycardia is crucial to ensure correct indication for ICD treatment and to avoid unnecessary invasive treatment and device-associated morbidity.Case summaryWe present a case of atypical atrial flutter with 2:1 atrioventricular (AV) conduction via a left-posterior accessory pathway (AP), leading to the diagnosis of Wolff-Parkinson-White (WPW) syndrome. (deepdyve.com)
  • Upon admission, the 72-year-old patient showed a regular broad complex tachycardia with superior axis and positive concordance in precordial leads, suggestive of either ventricular tachycardia (VT), antidromic AV re-entrant tachycardia (AVRT), or supraventricular tachycardia with antegrade conduction via a left-posterior AP. (deepdyve.com)
  • An invasive electrophysiological study proved the diagnosis of a bidirectionally conducting, left-posterior AP, which was successfully ablated.DiscussionDifferential diagnosis of broad complex tachycardia with superior axis and positive concordance of chest leads consists of i) VT with a left ventricular exit at the posterior mitral annulus, ii) antidromic AVRT involving a left-posterior AP, and iii) supraventricular tachycardia predominantly conducted via a left-posterior AP. (deepdyve.com)
  • Treatment of supraventricular tachycardia (documented) with the aim of slowing the rhythm of ventricular contractions or restoring sinus rhythm during atrial fibrillation and flutter. (bestpharmbuy.com)
  • Idiopathic fascicular ventricular tachycardia (IFVT), also known as verapamil-sensitive VT or Belhassen VT, is a re-entry tachycardia from an ectopic focus in the left ventricle. (emra.org)
  • Adenosine slows conduction time through the A-V node, can interrupt the reentry pathways through the A-V node, and can restore normal sinus rhythm in patients with paroxysmal supraventricular tachycardia (PSVT), including PSVT associated with Wolff-Parkinson-White Syndrome. (nih.gov)
  • A cumulative 60% of patients with paroxysmal supraventricular tachycardia had converted to normal sinus rhythm within one minute after an intravenous bolus dose of 6 mg adenosine (some converted on 3 mg and failures were given 6 mg), and a cumulative 92% converted after a bolus dose of 12 mg. (nih.gov)
  • Adenosine is not effective in converting rhythms other than PSVT, such as atrial flutter, atrial fibrillation, or ventricular tachycardia, to normal sinus rhythm. (nih.gov)
  • Conversion to sinus rhythm of paroxysmal supraventricular tachycardia (PSVT), including that associated with accessory bypass tracts (Wolff-Parkinson-White Syndrome). (nih.gov)
  • False responses may occur because of misinterpretation of sinus tachycardia (ST) as a supraventricular tachydysrhythmia (SVTD). (elsevierpure.com)
  • Diltiazem converts paroxysmal supraventricular tachycardia (PSVT) to normal sinus rhythm by interrupting the reentry circuit in AV nodal reentrant tachycardias and reciprocating tachycardias, e.g. (nih.gov)
  • Paroxysmal atrial tachycardia - Lanoxin may relieve or prevent an attack, but its use in paroxysmal ventricular tachycardia is dangerous. (healthdirect.gov.au)
  • Although sinus tachycardia also originates in that geographic region many cardiologists do not consider sinus tachycardia as a type of SVT as sinus tachycardia is, in almost all instances, a temporary physiologic response to external stimuli (e.g., stress, excitement, exercise, or hypovolemia). (vin.com)
  • Typical ECG findings with SVT include narrow-complex tachycardia, electrical alternans, evidence of atrial activation (P', F, or f waves), and response to treatments that slow down AV conduction. (vin.com)
  • He was hypoxic and had episodes of supraventricular tachycardia and rapid atrial flutter (ventricular rate 160-200 beats/min). (rcjournal.com)
  • But if left untreated, some forms of tachycardia can lead to serious health problems, including heart failure, stroke or sudden cardiac death. (mayoclinic.org)
  • Sinus tachycardia refers to a typical increase in the heart rate often caused by exercise or stress. (mayoclinic.org)
  • Whether or not a rhythm-control strategy is adopted, adequate rate control should be achieved in all patients with AF to prevent myocardial infarction (if significant coronary artery disease is present), exacerbation of heart failure, and tachycardia-induced cardiomyopathy and to alleviate symptoms. (ahrq.gov)
  • Supraventricular tachycardia (SVT) is characterized by bursts of fast heartbeats that start in the upper chambers of the heart, closer to the sinus node. (kidshealth.org)
  • Atrial flutter is a cardiac arrhythmia characterized by atrial rates of 240-400 beats/min, usually with some degree of atrioventricular (AV) node conduction block. (medscape.com)
  • Atrioventricular 2:1-conduction via an accessory pathway during left atrial flutter unmasking WPW. (deepdyve.com)
  • Interrogation of the two-chamber ICD, which was very likely implanted unjustified in a peripheral clinic before, revealed atrial flutter with 2:1 AV conduction. (deepdyve.com)
  • Inhibits sinoatrial, atrial, and nodal conduction without affecting intraventricular conduction. (bestpharmbuy.com)
  • It has no effect on the sinus node recovery time or on the sinoatrial conduction time in patients without SA nodal dysfunction. (nih.gov)
  • Atrial fibrillation - Because Lanoxin depresses conduction in the atrioventricular bundle, producing a slower ventricular beat, it is valuable in atrial fibrillation. (healthdirect.gov.au)
  • Dual chamber modes are specifically indicated for treatment of conduction disorders that require restoration of both rate and AV synchrony, which include various degrees of AV block to maintain the atrial contribution to cardiac output, VVI intolerance (for example, pacemaker syndrome) in the presence of persistent sinus rhythm, or vasovagal syndromes or hypersensitive carotid sinus syndromes. (medtronic.com)
  • Single chamber atrial pacing is contraindicated in patients with an AV conduction disturbance. (medtronic.com)
  • Atrial remodeling is known to alter excitability and conduction in the atrium facilitating atrial fibrillation and atrial flutter. (uni-luebeck.de)
  • Conclusion: The data we provide offers insight into changes in atrial conduction after reduction of MR using PMVR in patients with sinus rhythm. (uni-luebeck.de)
  • A unique electrical conduction system in the heart causes it to beat in its regular rhythm. (kidshealth.org)
  • The ST-T wave changes are compatible with LVH or a left intraventricular conduction delay. (acc.org)
  • According to a legal precedent, patients with Mustard repair of transposition of the great vessels and sick sinus syndrome should not receive quinidine without a previously implanted pacemaker. (medscape.com)
  • Prior implantation of pacemaker/defibrillator with at least an atrial and RV mid septal lead. (survivornet.com)
  • 240 bpm in cats) and require atrial or atrioventricular junctional tissue for its initiation and maintenance. (vin.com)
  • [ 16 ] In another study, there was a high incidence of thrombus/thromboembolism with atrial flutter or fibrillation in patients who underwent the Fontan surgery, but it was low in this population in the setting of electrical cardioversion and anticoagulation therapy. (medscape.com)
  • We sought to determine long-term complications including cardiac symptoms, structural pathology, such as ventricular failure, atrio-ventricular valve regurgitation, and rhythm disturbances. (bmj.com)
  • Rhythm disturbances are, so far, rare. (bmj.com)
  • rhythm disturbances associated with WPW syndrome. (bestpharmbuy.com)
  • PMVR is a feasible and highly effective procedure to reduce MR in high-risk patients, which are likely to suffer from atrial rhythm disturbances. (uni-luebeck.de)
  • Then in May of 2009, it was discovered that Conway was having rhythm disturbances, specifically atrial flutter. (blogspot.com)
  • The lesion set has progressed from simple pulmonary vein (PV) isolation to a more comprehensive lesion set, which can be placed epicardially, and more closely replicates the left atrial lesions of the Cox maze III. (cardiologyonline.com)
  • Furthermore, left atrial isthmus lesion set is created by connecting the both superior pulmonary veins to the non/left coronary commissure of the aortic valve. (cardiologyonline.com)
  • The World Health Organization (WHO) has five classifications for pulmonary hypertension, and all except one of these groups can result in cor pulmonale (WHO Classification group 2 is pulmonary artery hypertension due to left ventricular [LV] dysfunction). (medscape.com)
  • In a limited number of studies of patients with compromised myocardium (severe congestive heart failure, acute myocardial infarction, hypertrophic cardiomyopathy), administration of intravenous diltiazem produced no significant effect on contractility, left ventricular end diastolic pressure, or pulmonary capillary wedge pressure. (nih.gov)
  • He had surgery on 8/8/12 to replace his pulmonary valve and RV-PA conduit, add an additional pacing wire to his left ventricle, and change his generator to a bi-ventricular model which is shown to preserve function and help the heart muscle pump more efficiently/effectively. (blogspot.com)
  • Isolated leftward prolapse or deviation of the primary atrial septum is a rare CHD that can mimic abnormal pulmonary venous return at first sight. (cambridge.org)
  • We present a case of a newborn infant, referred for surgical correction of totally anomalous pulmonary venous return into the right atrium, with the peri-operative finding of a leftward deviation of the superior margin of the primary atrial septum. (cambridge.org)
  • A transesophageal echocardiogram was performed, showing an interatrial tipo ostium ostium secundum atrial septal defect and severe pulmonary arterial hypertension with a right-left shunt. (bvsalud.org)
  • pulmonary circulation as a ventricular septal search, writing, revising and defect and atrial septal defect.1 editing. (bvsalud.org)
  • This triangle is on the dome of the left atrium and connected to the fibrous skeleton of the heart. (cardiologyonline.com)
  • Мітральна регургітація Mitral regurgitation (MR) is incompetency of the mitral valve causing flow from the left ventricle (LV) into the left atrium during ventricular systole. (msdmanuals.com)
  • Background: Mitral regurgitation (MR) has a severe impact on hemodynamics and induces severe structural changes in the left atrium. (uni-luebeck.de)
  • Dr. Steinberg advised that I should have an A-Flutter procedure on the left atrium which would take about 40 minutes (about 5% have Flutter in the left atrium rather than in the right). (a-fib.com)
  • Atrial rhythm means the heart's electrical activity is driven by somewhere in the Atrium except the SA node. (medicarecentre.net)
  • In atrial fibrillation, electrical activity starts from the right Atrium but in several places. (medicarecentre.net)
  • Classification of typical and non-typical (atypical) atrium flutters depends on the short circuit in the heart based on the pathway the electrical signals follow to move faster around the atrium part of the heart. (tutorialspoint.com)
  • The flutter occurs locally in the right atrium. (tutorialspoint.com)
  • This flutter occurs in the left atrium. (tutorialspoint.com)
  • Atrial fibrillation after atrial septal defect device closure - How to access the left atrium? (escardio.org)
  • The embryological and clinical features of a dividing partition of the left atrium are discussed. (cambridge.org)
  • RV pressure and volume overload is associated with septal displacement toward the left ventricle. (medscape.com)
  • Associated with an ostium secundum Atrial Septal Defect in an Adult Woman. (bvsalud.org)
  • Because of the results of the DIAMOND study, some physicians use dofetilide in the suppression of atrial fibrillation in individuals with LV dysfunction, however use appears limited: After initially receiving marketing approval in Europe in 1999, Pfizer voluntarily withdrew this approval in 2004 for commercial reasons and it is not registered in other first world countries. (wikipedia.org)
  • Cordarone is recommended for patients with IHD and / or left ventricular dysfunction. (bestpharmbuy.com)
  • He was volume resuscitated, and pharmacologic anti-arrhythmic therapy was initiated, but he was unable to maintain sinus rhythm. (rcjournal.com)
  • Electrical cardioversion and multiple AAD trials were utilized to maintain sinus rhythm. (acc.org)
  • Numerous studies have documented the marginal efficacy of antiarrhythmic drugs (AAD) for maintaining sinus rhythm in patients with paroxysmal atrial fibrillation (AF). (acc.org)
  • My dad and family members have no history of pectus however my dad was just diagnosed with afib atrial fib after he got sick and went to the dr. (cardiachealth.org)
  • During isoproterenol infusion, SB (45 beats in 9 episodes in 5/11), AFL (15 beats in 3 episodes in 2/11), and AF (64 beats in 13 episodes in 5/11) were recorded in addition to ST. The interval between the left atrial and left ventricular intrinsic deflections (A‐V 1 ) and between the left and right ventricular intrinsic deflections (V 1 ‐V 2 ) of each beat was measured. (elsevierpure.com)
  • The remaining two episodes could be differentiated by the greater number of atrial versus ventricular beats. (elsevierpure.com)
  • An algorithm using the relative number of atrial vs ventricular beats and A‐V 1 and V 1 ‐V 2 timing can provide automated dysrhythmia detection, without effect from lidocaine or isoproterenol infusion. (elsevierpure.com)
  • Upon arrival he was afebrile, in normal sinus rhythm (heart rate 80 beats/min), and his blood pressure was 111/50 mm Hg. (rcjournal.com)
  • After the PVA procedure was done, it was discovered that I had Atrial Flutter on top of A-Fib running about 140+ beats. (a-fib.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)
  • The sinus node controls how quickly or slowly the heart beats. (kidshealth.org)
  • We can represent the heartbeat rate as the proportion of atrial beats to ventricle beats. (tutorialspoint.com)
  • Nowadays, flecainide is recommended as one of the first line therapies for pharmacological conversion as well as maintenance of sinus rhythm in patients with atrial fibrillation and/or supraventricular tachycardias. (wjgnet.com)
  • Thrombosis and thromboembolic events are recognized complications in patients with atrial flutter, particularly in the setting of repaired congenital heart disease, such as the Fontan procedure. (medscape.com)
  • Dual chamber sequential pacing is contraindicated in patients with chronic or persistent supraventricular tachycardias, including atrial fibrillation or flutter. (medtronic.com)
  • The majority of idiopathic VTs originate in the right ventricle, but 10-15% originate in the left ventricle. (emra.org)
  • Genetic investigations have confirmed that morphogenesis of the right and left ventricle originated from different sets of progenitor cells. (medscape.com)
  • INDICATIONS AS AT 26 JULY 2000 : Congestive heart failure - Lanoxin is useful regardless of whether the failure is predominantly of the left or right ventricle, or involves both sides of the heart. (healthdirect.gov.au)
  • Strength-based sporting activities (e.g., track and field throwing events, weightlifting, karate/judo, American football) result in a normal or slightly increased cardiac output, an increase in peripheral vascular resistance, and transient hypertension, imposing a significant pressure load on both the left ventricle and the right ventricle. (scienceopen.com)
  • An arrhythmia (also called dysrhythmia) is a deviation from the normal cardiac rate and rhythm, site of origin of the cardiac impulse, or sequence of activation of the atria or the ventricles. (vin.com)
  • Consequently, any heart rhythm that does not originate from the sinus node at a normal rate and at regular interval is classified as an arrhythmia. (vin.com)
  • Dr. Natale also is the Senior Medical Director at Pacific Atrial Fib and Arrhythmia Center in San Francisco. (jafib.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)
  • Atrial flutter is an age-triggered arrhythmia. (tutorialspoint.com)
  • The Kansas City Heart Rhythm Institute at the HCA Midwest Health Heart and Vascular Institute brings the highest quality clinical care, research and arrhythmia education to Kansas City. (hcamidwest.com)
  • An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm. (medlineplus.gov)
  • When an arrhythmia is serious, you may need urgent treatment to restore a normal rhythm. (medlineplus.gov)
  • Right-sided ventricular disease caused by a primary abnormality of the left side of the heart or congenital heart disease is not considered cor pulmonale, but cor pulmonale can develop secondary to a wide variety of cardiopulmonary disease processes. (medscape.com)
  • However, quinidine is now recognized to have a detrimental adverse effect profile in general, and it is essentially no longer used in the treatment of rhythm disorders following congenital heart disease. (medscape.com)
  • The patient was able to intermittently go into sinus rhythm with vagal maneuvers. (emra.org)
  • It can evaluate right and left atrial size, as well as the size and function of the right and left ventricles, and this information facilitates diagnosis of valvular heart disease, left ventricular hypertrophy (LVH), and pericardial disease. (medscape.com)
  • My father was recently hospitalized with a pericardial effusion and atrial fib/flutter with a rate of 160. (cardiachealth.org)
  • If your primary care doctor detects a heart murmur or you've been experiencing symptoms of a heart rhythm disorder, you may need to see a cardiologist specializing in electrophysiology (EP) for testing and diagnosis. (hcamidwest.com)
  • Atrial fibrillation (AF) has strong associations with other cardiovascular diseases, such as heart failure, coronary artery disease (CAD), valvular heart disease, diabetes mellitus, and hypertension. (medscape.com)
  • 14-day-holter monitors were collected at 3, 6 and 12 month, confirming all patients being in normal sinus rhythm. (cardiologyonline.com)
  • It will frequently convert atrial flutter into fibrillation and, upon withdrawal of the drug, normal sinus rhythm may be restored. (healthdirect.gov.au)
  • This time, he was again hospitalized and put on IV milrinone, but he converted back to normal sinus rhythm by himself. (blogspot.com)
  • Echocardiography showed normal systolic and diastolic left and right ventricular function and no evidence of intra-cardiac shunt or valvular disease. (rcjournal.com)
  • In atrial fibrillation, instead of the atria squeezing in a normal regular fashion, the atria beat irregularly and chaotically. (mayoclinic.org)
  • Sinus rhythm is the normal cardiac rhythm of a healthy person. (medicarecentre.net)
  • The ECG shows sinus rhythm with normal PR interval and prolonged QRS duration (126 ms). The horizontal QRS voltage suggests left ventricular hypertrophy (LVH). (acc.org)
  • At discharge, 85.8% of patients had reverted to normal sinus rhythm. (medscape.com)
  • Management of AF involves three distinct areas, namely rate control, rhythm control, and prevention of thromboembolic events. (ahrq.gov)
  • In patients who are stable and have chronic atrial flutter, perform cardioversion only after documentation of freedom from intracardiac thrombi or following a 2-week course of anticoagulation. (medscape.com)
  • This data is strong enough for patients who have a high CHADsVASC score and have developed an episode of atrial fibrillation in the post-CABG phase to highly or strongly consider long-term chronic oral anticoagulation," Stone said. (medscape.com)
  • Signs and symptoms in patients with atrial flutter typically reflect decreased cardiac output as a result of the rapid ventricular rate. (medscape.com)