Conclusions radiofrequency ablation of atrial flutter. Medical search. Frequent questions

This article is based on Radiofrequency Ablation as Initial Therapy in Paroxysmal Atrial Fibrillation. (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)
Abstract: Objectives - The aim of this study was to determine if specific electrocardiographic parameters and echo-cardiographic atrial indices could help in predicting the risk for developing paroxysmal atrial fibrillation (PAF). (romanianjournalcardiology.ro)
The correlation between atrial conduction abnormalities and paroxysmal atrial fibrillation has been previously described1. (romanianjournalcardiology.ro)
Pulmonary vein isolation (PVI) is currently recommended for paroxysmal atrial fibrillation (AF) catheter ablation, but persistent AF remains a clinical challenge 1 - 3 . (jafib.com)
Methods: This prospective study included 15 consecutive patients scheduled to undergo an initial ablation of paroxysmal atrial fibrillation (AF). (authorea.com)

Serial 24-h ambulatory electrocardiographic (Holter) and follow-up electrophysiologic studies were performed to assess recurrence of tachycardia and possible atrial arrhythmogenic effects. (tmu.edu.tw)
BACKGROUND Irrigated radiofrequency (RF) ablation can be insufficient to eliminate intramurally located septal atrial flutter (AFL) and ventricular tachycardia (VT) circuits. (inhibitorkit.com)
Among 34 patients consecutively enrolled in this study, 28 (82.4%) patients were referred for radiofrequency ablation (RFA) of AF, 3 (8.8%) patients for ablation of right ventricular outflow tract (RVOT) ventricular extrasystole (VES), 1 (2.9%) patient for ablation of atrioventricular nodal reentry tachycardia (AVNRT), 2 (5.9%) patients for typical atrial flutter ablation. (viamedica.pl)
In patients with isthmus-dependent atrial flutter, entrainment mapping from the isthmus during tachycardia results in postpacing intervals (PPI) close to the tachycardia cycle length (TCL). (univ-brest.fr)
In all patients, RFA of the isthmus resulted in termination of tachycardia, confirming the isthmus-dependent nature of the flutter. (univ-brest.fr)
CONCLUSIONS Dofetilide shows promise as an agent for the prevention of atrioventricular re-entrant tachycardia in patients without structural heart disease. (bmj.com)
Pharmacological treatment of supraventricular tachycardia remains a common approach despite the increased use of radiofrequency ablation. (bmj.com)
With catheter ablation becoming effective for non-pharmacological management of AF, many cases of atrial tachycardia (AT) after AF ablation have been reported in the past decade. (aerjournal.com)
9-12 However, atrial tachycardia (AT) occurring after AF ablation is often symptomatic, complex and poorly controlled by anti-arrhythmic agents. (aerjournal.com)
Flecainide is an IC antiarrhythmic drug approved in 1984 from Food and Drug Administration for the suppression of sustained ventricular tachycardia and later for acute cardioversion of atrial fibrillation (AF) and for sinus rhythm maintenance. (encyclopedia.pub)
However, current techniques for ablating complex arrhythmias such as atrial fibrillation and ventricular tachycardia are associated with sub-optimal success rates and prolonged radiation exposure. (rmmj.org.il)
Radiofrequency (RF) catheter ablation has advanced over the last 25 years from an experimental procedure to the first-line treatment for a number of cardiac arrhythmias including atrioventricular re - entrant tachycardia, accessory pathway-associated tachycardias, and typical atrial flutter. (rmmj.org.il)
The clinical indications for anatomy-based catheter ablation have since expanded to more complex arrhythmias such as atrial fibrillation and scar-based ventricular tachycardia. (rmmj.org.il)
He specializes in interventional therapies for arrhythmias, including atrial fibrillation and ventricular tachycardia. (sjpp.org)

In Group II, continuous migratory application of radiofrequency energy was used to create two linear lesions in or around the inferior vena cava-tricuspid ring isthmus. (tmu.edu.tw)
Resumption of right atrial isthmus conduction following atrial flutter radiofrequency ablation. (seminarsincardiology.com)
20 ms increase in the interval between cavo-tricuspid isthmus (CTI) double potentials during incremental pacing (IP) is a highly specific marker differentiating functional from complete CTI block during typical flutter (AFL) ablation. (houstonmethodist.org)
Value of entrainment mapping in determining the isthmus-dependent nature of atrial flutter in the presence of amiodarone. (univ-brest.fr)
The aim of our study was to assess the value of entrainment mapping in the presence of amiodarone in patients undergoing radiofrequency ablation (RFA) of isthmus-dependent atrial flutter. (univ-brest.fr)
METHODS AND RESULTS: The study consisted of 83 patients with isthmus-dependent atrial flutter: 52 were taking amiodarone at the time of RFA (group 1) and 31 were in a drug-free state (group 2). (univ-brest.fr)
CONCLUSION: Amiodarone significantly alters the entrainment mapping response from the isthmus. (univ-brest.fr)
In this setting, long return cycles exceeding the TCL by >20 msec do not exclude isthmus-dependent atrial flutter. (univ-brest.fr)
The aim of this study was to compare the anatomic and electrogram mapping approaches for creating a line of block in the cavotricuspid isthmus after an initial, unsuccessful anatomically directed ablation line. (northwestern.edu)
Methods and Results: The subjects of this study were 63 patients with isthmus-dependent atrial flutter in whom a single series of contiguous applications of radiofrequency energy guided by fluoroscopy in the cavotricuspid isthmus did not result in complete block. (northwestern.edu)
Conclusion: When there is incomplete block after an initial series of applications of radiofrequency energy in the cavotricuspid isthmus, complete block is achieved more efficiently with an electrogram mapping approach than with an anatomic approach. (northwestern.edu)
Incident atrial fibrillation (AF) is common after cavotricuspid isthmus (CTI) dependent atrial flutter (AFL) ablation. (jafib.com)
Patients undergoing cavotricuspid isthmus (CTI) ablation of typical right atrial flutter (AFL) frequently develop new-onset atrial fibrillation (AF) within three years after ablation 1 - 3 . (jafib.com)
Successful targeting of ablation primarily to the anatomic arrhythmia substrate, as opposed to mapping and targeting ablation based on electrogram characteristics, began with recognition that common atrial flutter passes through a narrow structure known as the cavo-tricuspid isthmus. (rmmj.org.il)

What follows is perhaps an oversimplified, somewhat biased attempt at explaining the catheter ablation procedures from a patient's perspective. (a-fib.com)

Methods The improveD procEdural workfLow for cathETEr ablation of paroxysmal AF with high density mapping system and advanced technology (DELETE AF) study is a prospective, single-arm, international post-market cohort study designed to demonstrate a low rate of clinical atrial arrhythmias recurrence with an improved procedural workflow for catheter ablation of paroxysmal AF, using the most advanced point-by-point RF ablation technology in a multicenter setting. (unav.edu)
Catheter ablation is a first-line treatment for many cardiac arrhythmias and is generally performed under X-ray fluoroscopy guidance. (rmmj.org.il)
Pre-procedure 3-D magnetic resonance imaging (MRI) has improved understanding of the anatomic basis of complex arrhythmias and is being used for planning and guidance of ablation procedures. (rmmj.org.il)
In the future, intra-procedure real-time MRI, together with the ability to image complex 3-D arrhythmogenic anatomy and target additional ablation to regions of incomplete lesion formation, may allow for more successful treatment of even complex arrhythmias without exposure to ionizing radiation. (rmmj.org.il)
While the feasibility of X-ray fluoroscopy guidance has been demonstrated for these complex arrhythmias, precise targeting of ablation lesions is limited by fluoroscopy's inherently poor ability to visualize cardiovascular soft tissue anatomy. (rmmj.org.il)
CARL pioneered computational mapping of 'chaotic' heart rhythm disturbances (arrhythmias), targeting mechanistic drivers for atrial and ventricular fibrillation (AF, VF) using machine learning and computational models. (stanford.edu)
Specific support has been via grants HL70529 and HL162260 for ventricular arrhythmias, and HL103800, HL83359, HL122384, HL149134, and several SBIR grants for atrial arrhythmias. (stanford.edu)
Problems such as atrial arrhythmias are very common and quite benign, with little influence on the patient's hospital course or long‐term prognosis. (thoracickey.com)

The patients were randomly assigned to additional ablation on an anatomic basis (n = 31) or guided by single potentials or narrowly split double potentials during coronary sinus pacing (n = 32). (northwestern.edu)
Therefore, although several multicentre randomised trials showed no difference between PVI alone and additional ablation within the left atrium (LA), various methods, including linear ablation and substrate modification, have been introduced to achieve favourable results. (aerjournal.com)
The risk of recurrence was significantly decreased compared to pulmonary vein isolation (PVI) alone for PVI with renal denervation (RR: 0.60, CI: 0.38-0.94), PVI with ganglia-plexi ablation (RR: 0.62, CI: 0.41-0.94), PVI with additional ablation lines (RR: 0.8, CI: 0.68-0.95) and PVI in combination with bi-atrial modification (RR: 0.32, CI: 0.11-0.88). (biomedcentral.com)

Radiofrequency ablation of the common atrial flutter circuit was safe and effective with either the electrophysiologically guided focal ablation or linear ablation technique. (tmu.edu.tw)

P wave duration, amplitude and dispersion (P d ) were calculated from ECG and left and right atrial diameters, area, volumes, atrial emptying function and atrial function index were assessed by 2D echocardiography. (romanianjournalcardiology.ro)
0.0001), and no correlation with right atrial index volume (r=0.2167, p=0.0881). (romanianjournalcardiology.ro)

Encircling ablation lesions around the pulmonary vein os and a connecting roof line was completed with either an 8mm tip or irrigated RFA catheter. (acc.org)
23-25 Linear ablation combined with PVI may result in reentrant ATs because of conduction gaps and non-transmural lesions caused by ablation lesions. (aerjournal.com)
Contact-force (CF) technology was not, however, routinely used in previous prospective studies on percutaneous PWI, even if it provides deeper and more durable lesions when integrated in ablation catheters either in paroxysmal or in persistent AF ablations 12 - 14 . (jafib.com)
We aimed to explore target LI measurements at each radiofrequency application (RFA) for creating sufficient ablation lesions during pulmonary vein (PV) isolation. (authorea.com)
Creation of sufficient ablation lesions was assessed by the absence of a conduction gap. (authorea.com)
A particular strength of MRI compared to other imaging modalities is the ability to visualize ablation lesions. (rmmj.org.il)
4 , 5 The basis of these strategies is to target specific anatomic regions and often to create extended ablation "lines" by aligning multiple point lesions or by dragging the catheter along the endocardial surface while applying ablative energy. (rmmj.org.il)

Recurrence rate (2 of 28 vs. 3 of 29) and incidence of new sustained atrial tachyarrhythmias (3 of 28 vs. 3 of 29) was similar in the two groups, Occurrence of recurrent atrial butter and new sustained atrial tachyarrhythmias was related to associated cardiovascular disease and atrial enlargement in both groups. (tmu.edu.tw)
Secondary endpoints included freedom from any AF and freedom from symptomatic AF at 24 months, cumulative and per visit burden of symptomatic AF, time to first recurrence of AF after the blanking period, and atrial flutter longer than 1 minute. (acc.org)
In the Catheter Ablation Versus Anti-arrhythmic Drug Therapy for Atrial Fibrillation (CABANA) trial, the catheter ablation group had superior quality of life compared with the anti-arrhythmic drug group and less AF recurrence after blanking through intention-to-treat analysis. (aerjournal.com)
7,8 Hence, catheter ablation has become widely used for treating symptomatic drug-refractory AF, even though the recurrence rates of AF ablation remain high, especially in persistent AF and longstanding persistent AF. (aerjournal.com)
Background The antral region of pulmonary veins (PV)s seems to play a key role in a strategy aimed at preventing atrial fibrillation (AF) recurrence. (unav.edu)
Left atrial (LA) function can be impaired by the atrial fibrillation (AF) ablation and might be associated with the risk of recurrence. (biomedcentral.com)
We sought to determine whether the post-procedural changes in LA function impact the risk of recurrence following AF ablation. (biomedcentral.com)
The primary endpoint was atrial tachyarrhythmia recurrence after ablation. (biomedcentral.com)

A 57-year-old man without a history of coronary disease was scheduled for general anesthesia to undergo cardiac radiofrequency catheter ablation due to symptomatic persistent atrial fibrillation and flutter. (ekja.org)
The Atrial Fibrillation Follow-up Investigation of Rhythm Management (AFFIRM), Rate Conrol versus Electrical Cardioversion for Persistent Atrial Fibrillation (RACE), Pharmacological Intervention in Atrial Fibrillation (PIAF), Strategies of Treatment of Atrial Fibrillation (STAF) and How to Treat Chronic Atrial Fibrillation (HOT-CAFÉ) studies have been unable to show conclusively the superiority of one strategy over the other. (ecrjournal.com)
Methods This retrospective observational study included 120 patients (18 years or older) with paroxysmal or persistent atrial fibrillation who underwent RFA for de novo pulmonary vein isolation guided either by an UHDMS (n=63) or NUHDMS (n=57) for their index procedure. (unav.edu)
The efficacy of posterior wall isolation (PWI) on top of pulmonary vein isolation (PVI) in patients affected by persistent atrial fibrillation (AF) is still controversial and little is known about the impact of contact-force (CF) technology. (jafib.com)
A total of 73 consecutive patients (20.5% female) affected by persistent atrial fibrillation (10.9% long-standing) underwent PWI as an adjunctive therapy to PVI using CF sensing catheters. (jafib.com)
In persistent atrial fibrillation, PWI on top of PVI using CF sensing catheters is safe and effective, providing great reduction of burden of ARs. (jafib.com)

While the P wave duration is linked to prolonged intra and in-teratrial conduction, more insight can be obtained if the variation in P wave duration is measured between different ECG leads as a marker of non-homogeneous atrial conduction. (romanianjournalcardiology.ro)
Results: After first-pass encircling PV antrum ablation, left atrium to PV conduction remained in 12 of 30 (40%) ipsilateral PVs. (authorea.com)
2 By directing ablation to interrupt conduction through this region, high cure rates have been achieved with a low risk of complications. (rmmj.org.il)

Retrospective chart review identified 114 consecutive patients without a history of AF or prior cardiac surgery who underwent typical CTI dependent AFL ablation between December 2013 to November 2018, who also had a complete preoperative transthoracic echocardiogram, and at least 1 year of follow-up at our medical center. (jafib.com)
These might include a salutary effect of sinus rhythm due to at least three factors: regularisation of the rhythm, physiological rate control and restoration of atrial contribution to cardiac output. (ecrjournal.com)
18 years old, had previous AF ablation or cardiac surgery procedure, valvular AF, congenital heart disease, previous atrioventricular node ablation, permanent pacing or no follow-up data. (biomedcentral.com)
30 seconds at follow up and in addition, in patients provided with insertable cardiac monitors (ICM), as burden of AF or atrial tachycardias (AT) at relevant time points. (jafib.com)

AAD could be used during the first 3 months post ablation. (acc.org)
Risk factors for the development of AF post ablation are not well understood. (jafib.com)
Post-ablation, all patients will be monitored with ambulatory event monitoring, starting within 30 days post-ablation to proactively detect and manage any recurrences within the 90-day blanking period, as well as Holter monitoring at 3, 6, 9, and 12 months post-ablation. (unav.edu)

Sixty patients with drug-refractory common atrial putter were randomly assigned to undergo radiofrequency catheter ablation performed with the electrophysiologically guided focal ablation (Group I) or linear ablation technique (Group II). (tmu.edu.tw)

In 21 (62%) patients the en- tire procedure was carried out without the use of fluoroscopy. (viamedica.pl)
The total procedure time of AF ablation was 130 ± 50 min. (viamedica.pl)
Pulmonary Vein Ablation of A-Fib is a relatively new procedure whose techniques and language are evolving. (a-fib.com)
In this early procedure doctors mapped the sources of ectopic beats (beats that come from any region of the heart that ordinarily should not produce heart beat signals), then used a Radiofrequency (RF) catheter to "ablate" or burn off areas or points within the heart producing these ectopic beats. (a-fib.com)
The 'Anatomically Based Circumferential PV Ablation' procedure is faster, easier, requires less operator's skill, and is more cost effective for doctors. (a-fib.com)
Healthcare resource utilization, clinical data, complications, patients' medical complaints related to the ablation procedure and patient's reported outcome measures will be prospectively traced and evaluated. (unav.edu)
A total of 320 patients who underwent an initial catheter ablation procedure for AF using a CB, HB, or LB in 2 hospitals were included. (go.jp)
In the present study, we sought to determine the pattern of LA performance change immediately and short-term after AF ablation and whether such alternation of LA function is related the procedure outcome at long-term follow-up. (biomedcentral.com)
Since these two techniques differ in the source of energy, fluoroscopy time, need for electroanatomic guidance, learning curve, and procedure time, an important question arises: what is the best energy source to perform catheter ablation? (heart.org)
The current real-world anticoagulation practices following left atrial appendectomy in the context of the Maze procedure are unknown. (jafib.com)
This is a cohort study of all patients who underwent the Maze procedure with amputation of the left atrial appendage from June 2005 to November 2012. (jafib.com)
Patients who undergo the Maze procedure with amputation of the left atrial appendage are at a low risk of stroke, but the optimal anticoagulation strategy requires further investigation. (jafib.com)
Cox-Maze Procedure, Anticoagulation, Atrial Fibrillation. (jafib.com)
3 The surgical treatment of atrial fibrillation is the Cox-Maze procedure which produces transmural scars to interfere with abnormal electrical circuits. (jafib.com)
4 A component of this procedure is exclusion of the left atrial appendage (LAA), the main culprit in cardiogenic emboli. (jafib.com)
We included studies comparing patients underwent HPSD and LPLD strategies for AF ablation and reporting either of the following outcomes: freedom from atrial tachyarrhythmia (AT) including AF and atrial flutter, procedure time, or periprocedural complications. (authorea.com)
There was a significant reduction in the HPSD group for total procedure (WMD=49.60, 95%CI:29.76-69.44) and ablation (WMD=17.92, 95%CI:13.63-22.22) times, but not for fluoroscopy time (WMD=1.15, 95%CI:-0.67-2.97). (authorea.com)
However, a HPSD strategy can significantly reduce total procedure and ablation times. (authorea.com)
Post-procedure MRI is now being applied to assess ablation lesion location and permanence with the goal of identifying factors leading to procedure success and failure. (rmmj.org.il)

The objective of this study was to compare the efficacy and safety of different CA strategies for AF ablation through network meta-analysis (NMA). (biomedcentral.com)

Purpose Advanced non-fluoroscopic mapping systems for radiofrequency ablation (RFA) have shown to be an effective treatment of atrial fibrillation. (unav.edu)

Multiple randomized trials have demonstrated the benefit of prophylactic pulmonary vein isolation (PVI) for patients undergoing CTI dependent AFL ablation 9 - 13 . (jafib.com)
1 Triggers from the pulmonary vein (PV) have been identified as crucial ectopic sources that initiate AF and pulmonary vein isolation (PVI) is the cornerstone for catheter ablation of AF. (aerjournal.com)
Pulmonary vein stenosis (PVS) after PV isolation (PVI) for atrial fibrillation (AF) is a severe complication that requires angioplasty. (go.jp)
Among strategies to achieve atrial compartmentalization and de-bulking, posterior wall isolation (PWI) allows the reduction of LA critical mass and also the suppression of AF triggers and drivers 5 . (jafib.com)

Outcomes were compared against reference patients with VF who were unable or unwilling to undergo catheter ablation. (stanford.edu)

Atrial dimensions were higher and the reservoir function was altered in patients with PAF compared with patients in sinus rhythm. (romanianjournalcardiology.ro)
Some reports showed that the measurement in sinus rhythm of P wave dispersion (Pd) and P wave duration together with atrial echocardiographic indices might be a useful, easy and noninvasive clinical tool to identify patients at risk of developing PAF3. (romanianjournalcardiology.ro)
2,3 Per the European and US AF guidelines, catheter ablation of AF is currently recommended as the first-line therapy if anti-arrhythmic agents fail to maintain sinus rhythm. (aerjournal.com)
An average of 3.3±0.5 sites of localized reentry during VF were targeted for radiofrequency ablation (38.3±10.9 minutes) during sinus rhythm, rendering VF non-inducible with pacing. (stanford.edu)
It would be prudent to assess carefully whether patients presenting with both AF and HF will benefit from improved outcomes following restoration and maintenance of sinus rhythm, whether achieved by drug therapy or catheter ablation. (ecrjournal.com)
For decades, conventional wisdom suggested that sinus rhythm was preferred over rate control in the treatment of patients with atrial fibrillation (AF). (ecrjournal.com)
Peak left atrial contraction strain (PACS) and left atrial emptying fraction (LAEF) were evaluated during sinus rhythm and compared across the three time points. (biomedcentral.com)
Currently, flecainide is mostly used for sinus rhythm maintenance in atrial fibrillation patients without structural cardiomyopathy although recent studies enrolling different patient population demonstrated a good effectiveness and safety profile. (encyclopedia.pub)

Clinical reports have shown that dofetilide is effective in the treatment of supraventricular tachyarrhythmias, such as atrial fibrillation and atrial flutter. (bmj.com)

In multivariable analysis LAVI remained the sole independent predictor of incidence AF after CTI AFL ablation. (jafib.com)
In this review, we summarise the incidence, mechanism, mapping and ablation techniques, and outcomes of AT after AF ablation. (aerjournal.com)
The incidence of AT after AF ablation varies from less than 5% to 40% and is associated with the index ablation strategy and duration of AF. (aerjournal.com)

It has been reported before that the use of advanced three-dimensional electroanatomical mapping (EAM) system significantly reduces fluoroscopy time, however this study aimed for zero or near zero fluoroscopy ablation to assess its feasibility and safety in ablation of atrial fibrillation (AF) and other tachyarrhythmias in a "real world" experience of a single tertiary care center. (viamedica.pl)
This was a single-center study where ablation procedures were attempted without fluoroscopy in 34 consecutive patients with different tachyarrhythmias under the support of EAM system. (viamedica.pl)
Among 28 AF patients, 15 (54%) patients underwent ablation without the use of fluoroscopy and among these 15 patients, 10 (67%) patients required TSP under ICE guidance while 5 (33%) patients the catheters were introduced to left atrium through a patent foramen ovale. (viamedica.pl)
All patients referred for atrial flutter, AVNRT, and VES of the RVOT ablation did not require any fluoroscopy. (viamedica.pl)
Results No intergroup differences were noted in baseline characteristics, ablation settings and fluoroscopy/radiofrequency times. (houstonmethodist.org)

Patients with symptomatic and drug-refractory AF who underwent first time AF ablation at Mayo Clinic (Rochester, MN) between April 2009 and May 2011 were included. (biomedcentral.com)

Electrical Substrate Ablation for Refractory Ventricular Fibrillation: Results of the AVATAR Study. (stanford.edu)
VF electrical substrate ablation (VESA) was then performed. (stanford.edu)

More atrial premature beats and episodes of short run atrial tachyarrhythmias in the early period (within 2 weeks) after ablation were found in Group II. (tmu.edu.tw)

A total of 101 patients who underwent ablation therapy for AF were prospectively registered, and 72 patients completed the assessment with MRI 6 months after catheter ablation. (researchsquare.com)

Prior to the Atrial Fibrillation and Congestive Heart Failure (AF-CHF) trial, these studies were largely conducted on patients without heart failure (HF) and included patients with paroxysmal AF. (ecrjournal.com)
He remains an international expert and researcher in atrial fibrillation and stroke risk reduction replacing oral anticoagulants (blood thinners) with left atrial appendage closure (LAAC), and is a co- national Principle Investigator in a number of trials in atrial fibrillation, LAAC and congestive heart failure. (sjpp.org)

In the treatment and management of atrial fibrillation (AF), the debate over 'rate versus rhythm' has largely been answered by several large randomised prospective clinical trials that have shown no distinct advantage for one strategy over the other in terms of clinical outcomes. (ecrjournal.com)

Symptomatic PVS requiring intervention was rare after the balloon ablation of AF. (go.jp)

If pharmacological therapy is insufficient or associated with side effects, the 2006 ACC/AHA/ESC Guidelines recommend ablation of the atrioventricular node (AVN) in conjunction with permanent pacemaker implantation to control heart rate. (ahrq.gov)

Background - Refractory ventricular fibrillation (VF) is a challenging clinical entity, for which ablation of triggering premature ventricular complexes (PVCs) is described. (stanford.edu)

0.01) were significantly shorter than those in Group I. Conclusions. (tmu.edu.tw)

Not too long ago, cardiovascular stereotactic system radiotherapy (CSBRT) may be introduced being a treatment alternative inside patients using VT refractory to be able to antiarrhythmic drug treatments as well as catheter ablation. (cd31-signal.com)

We retrospectively reviewed patients who underwent AF ablation between 2009 and 2011 and underwent transthoracic echocardiography before ablation, 1-day and 3-month after ablation. (biomedcentral.com)

1-3 Radiofrequency ablation (RFA) has been demonstrated to significantly reduce and eliminate AF episodes, reduce symptoms and reduce the need for medical therapy. (acc.org)
The prevalence of cerebral microbleeds (CMBs) is significantly higher in patients with atrial fibrillation (AF) than in those without AF. (researchsquare.com)
Left atrial volume index (LAVI) was significantly greater in patients who developed AF compared to those that did not (37 ± 12.2 ml/m 2 vs 30 ± 13.4 ml/m 2 , p=.004), with an area under the receiver operator characteristic curve based on the LAVI of 0.7 (p = 0.004). (jafib.com)
LAVI ≥ 30 ml/m 2 is associated with significantly increased risk of incident AF following CTI ablation for typical AFL. (jafib.com)

We aimed to assess the impact of IP in reducing AFL recurrences after CTI ablation. (houstonmethodist.org)
Conclusions The addition of the IP maneuver for the diagnosis of complete CTI block reduces AFL long-term recurrences after ablation. (houstonmethodist.org)

Atrial Tachycardias After Atrial Fibrillation Ablation: How to Manage? (aerjournal.com)

Previous studies investigating risk factors for incident AF after AFL ablation have not consistently identified LAVI as a predictor and have not commonly included detailed and complete echocardiographic and electrophysiology study data 4 - 6 . (jafib.com)
We aimed to investigate risk factors, including detailed echocardiography data, and invasive electrophysiology study data, for development of incident AF following AFL ablation. (jafib.com)

CONCLUSIONS: iATP may be beneficial as a secondary therapy after failure of conventional ATP to terminate VT. (bvsalud.org)
De novo CMBs frequently appeared after catheter ablation therapy. (researchsquare.com)
Patients at greatest risk of developing incident AF after AFL ablation may derive the greatest benefit from either prophylactic PVI, or intensified monitoring to guide anticoagulation therapy 9 - 12 . (jafib.com)

Bipolar ablation between 2 ablation catheters may be considered for such circuits. (inhibitorkit.com)
In this retrospective study, we present our experience with PWI using CF sensing catheters and its efficacy and safety as an adjunctive ablation strategy on top of PVI for management of patients with persistent and longstanding persistent AF. (jafib.com)

In conclusion, we demonstrate the inhibitory effects of As(2)O(3) on the invasiveness of HOS and MNNG cells, which may be due at least partly to inactivation of the MAPK signaling pathway. (inhibitorkit.com)

High-density mapping can achieve precise identification of the circuits and critical isthmuses of ATs and improve the efficacy of catheter ablation. (aerjournal.com)
Pulsed field ablation (PFA) is a non-thermal energy source with promising safety and efficacy advantages. (go.jp)
Comparative favoring evidence regarding the efficacy, logistics, and safety of a higher power, shorter duration (HPSD) ablation strategy compared to a lower power, longer duration (LPLD) ablation strategy is insubstantial. (authorea.com)

The mean CHADS2 score was 0.6 and the mean left atrial size was 40mm. (acc.org)
Radiofrequency catheter ablation (RFCA) is usually avoided or delayed in patients with MVR due to the higher perceived risks and difficulty of left atrial catheter manipulation in the presence of a mechanical valve. (elsevierpure.com)
A circular catheter is used to make Circular Radiofrequency Ablation lines around each of the four Pulmonary Vein openings (ostia) in the left atrium of the heart. (a-fib.com)
Left atrial function deteriorates immediately following AF ablation and partially recovers in 3 months but remains abnormal in the majority of patients. (biomedcentral.com)

Essentially, the two common approaches involve radiofrequency ablation (RFA) or cryoablation (CRA). (heart.org)

The 2011 Focused Update on the Management of Patients with Atrial Fibrillation-by the American College of Cardiology Foundation (ACCF), the AHA, and the Heart Rhythm Society (HRS)-addressed the issue of strict versus lenient rate control in patients with AF. (ahrq.gov)

Aim of the study To determine whether specifi c ECG parameters and transthoracic echocardiographic atrial measurements could help in predicting the risk for developing PAF in patients without structural car-diac disease. (romanianjournalcardiology.ro)

Conclusions: It was shown that CTO correlates with certain sarcoidosis phenotypes (Loefgren's syndrome, COS) and that serial measurements of CTO correlate with clinical symptoms, chest radiographs and lung function. (inhibitorkit.com)
75 years old, stroke/transient ischemic attack, chronic obstructive pulmonary disease, and heart failure, has been proposed as a predictor of AF after AFL ablation, 7 - 8 but its utility in clinical decision making remains unclear. (jafib.com)
However, prophylactic PVI during AFL ablation is not widely performed, and not included in clinical guidelines 14 . (jafib.com)

Conclusions - VESA is associated with a reduction in the combined endpoint compared with the non-ablation reference group. (stanford.edu)

atrial fibrillation, P wave dispersion, echocardiography. (romanianjournalcardiology.ro)

Conclusion In patients treated with an NUHDMS, 25% had a repeat ablation for recurrent arrhythmia, whereas only 9% of patients treated with a UHDMS had one (61% relative risk reduction), resulting in an average cost saving per patient of euro1,600. (unav.edu)
Conclusions: When compared to a LPLD strategy, HPSD strategy does not improve recurrent AT nor reduce periprocedural complication risks. (authorea.com)

Anatomy21

Organisms2

Diseases49

Chemicals and Drugs15

Analytical, Diagnostic and Therapeutic Techniques and Equipment63

Phenomena and Processes14

Disciplines and Occupations2

Information Science2

Health Care14

Paroxysmal atrial fibri6

Tachycardia14

Isthmus14

Catheter ablation procedures1

Arrhythmias8

Additional ablation3

Common atrial flutter1

Right atrial2

Lesions7

Recurrence8

Persistent atrial6

Conduction3

Cardiac4

Post ablation3

Assigned to undergo1

Procedure19

Strategies for AF ablation1

Treatment of atrial1

Isolation4

Undergo1

Sinus8

Supraventricular1

Incidence3

Fluoroscopy5

Drug-refractory1

Substrate2

Tachyarrhythmias1

Underwent ablation1

Congestive Heart F2

Outcomes1

Symptomatic1

Atrioventricular node1

Ventricular Fibrillation1

0.011

Antiarrhythmic drug1

Patients who underwent1

Significantly4

Recurrences2

Tachycardias1

Electrophysiology2

Therapy3

Catheters2

Signaling pathway1

Efficacy3

Left4

Cryoablation1

American College of1

Transthoracic1

Clinical3

Endpoint1

Echocardiography1

Recurrent2