27 May 2020 The impact of structural heart disease (SHD) on safety and efficacy of catheter ablation of cavo-tricuspid isthmus-dependent atrial flutter (AFLU) 

The lateral isthmus is generally longer and is not usually the primary ablation target. Ablation can be performed during AFL or proximal CS pacing (in sinus rhythm). The latter allows identification of a change in activation sequence on the tricuspid annular catheter, signifying slowing of CTI conduction or block (Figure 74-3, A).

Ablation can be performed during AFL or proximal CS pacing (in sinus rhythm). The latter allows identification of a change in activation sequence on the tricuspid annular catheter, signifying slowing of CTI conduction or block ( Figure 74-3, A ). Catheter ablation is considered to be a first-line treatment method for many people with typical atrial flutter due to its high rate of success (>90%) and low incidence of complications. This is done in the cardiac electrophysiology lab by causing a ridge of scar tissue in the cavotricuspid isthmus that crosses the path of the circuit that causes atrial flutter. Atrial flutter ablation is a procedure to create scar tissue within an upper chamber of the heart in order to block the electrical signals that cause a fluttering heartbeat. Atrial flutter occurs when your heart's electrical signals tell the upper chambers of your heart (atria) to beat too quickly. Transvenous catheter ablation has become the therapy of choice for patients with recurring, isthmus-dependent right atrial flutter.

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Recurrence of atrial flutter (AFL) after cavotricuspid isthmus (CTI) ablation for typical AFL is uncommon, but the long term integrity of this line in patients without recurrent clinical flutter is unknown. Methods: CTI line was performed

Methods of Isthmus Ablation Diagnosis of Isthmus-Dependent Atrial Flutter Characteristic, negative sawtooth waves in leads II, III, and aVF on the surface ECG and a typical activation sequence along the crista terminalis picked up by a 20-pole catheter is highly suggestive of typical, and hence isthmus-dependent, flutter. The prudent way Ablation of the cavotricuspid isthmus has become first-line therapy for “isthmus-dependent” atrial flutter.

Objectives. Cryoablation (CRYO) is an alternative to radiofrequency (RF) for catheter ablation of cavotricuspid isthmus (CTI)-dependent atrial flutter (AFL).

Catheter ablation is considered to be a first-line treatment method for many people with typical atrial flutter due to its high rate of success (>90%) and low incidence of complications. This is done in the cardiac electrophysiology lab by causing a ridge of scar tissue in the cavotricuspid isthmus that crosses the path of the circuit that causes atrial flutter. Atrial flutter ablation is a procedure to create scar tissue within an upper chamber of the heart in order to block the electrical signals that cause a fluttering heartbeat. Atrial flutter occurs when your heart's electrical signals tell the upper chambers of your heart (atria) to beat too quickly. Transvenous catheter ablation has become the therapy of choice for patients with recurring, isthmus-dependent right atrial flutter. Achieving bidirectional conduction block in the cavotricuspid isthmus is decisive for both acute and long-term therapy success and essentially depends on the selected ablation method and the lesion size. In patients without a history of heart disease, cardiac surgery or catheter ablation, typical flutter ECG remains predictive of a right atrial re-entry circuit dependent on the inferior vena cava–tricuspid isthmus that can be very effectively treated by ablation, although late incidence of atrial fibrillation remains a problem.

Patients with Atrial Flutter and patients with Atrial Fibrillation scheduled to undergo RF ablation of the cavotricuspid isthmus (CTI). Both male and female subjects who meet all eligibility criteria and give written informed consent will be enrolled in the study. OBJECTIVE To describe the electrocardiographic and electrophysiological findings of new atrial flutter developing in patients taking class IC antiarrhythmic drugs for recurrent atrial fibrillation, and to report the long term results of right atrial isthmus ablation in relation to the ECG pattern of spontaneous atrial flutter. Cavotricuspid isthmus (CTI) is the critical part of the circuit of typical atrial flutter (AFL), and catheter ablation for the bidirectional block has been an easy and safe treatment option. 1), 2), 3) Atrial fibrillation (AF) and AFL commonly occur in combination. 3. Koerber SM, Turagam MK, Gautam S, et al.
Dividera

Kottkamp H, Hügl B, Krauss B, et al.

1993; 71:705-709. Crossref Medline Google Scholar; 11 Cosio FG, Goicolea A, Lopez-Gil M, Arribas F. Catheter ablation of atrial flutter circuits.
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borttagande · ablation · ablativ · ablative · avljud · ablaut oro, fladdra, vaja · flutter · fladdrar · flutters landtunga, näs · isthmus · det är · it's · det plågar mig · it 

Catheter ablation is considered to be a first-line treatment method for many people with typical atrial flutter due to its high rate of success (>90%) and low incidence of complications. This is done in the cardiac electrophysiology lab by causing a ridge of scar tissue in the cavotricuspid isthmus that crosses the path of the circuit that causes atrial flutter. 2021-03-30 · The positive significance of isthmus ablation in patients with atrial flutter on quality of life has recently been described. 25 In addition, catheter ablation is curative in many patients, may obviate the need for life-long antiarrhythmic drug medication, and may be more cost effective in the long term than antiarrhythmic drug therapy. Atrial flutter ablation may be challenging in the presence of modified/complex anatomy. It is mandatory to precisely define the critical isthmus for those procedures. In this purpose, image integration gives a roadmap before starting the procedure, and remote magnetic navigation may be helpful as well in these complex anatomies.