AF Ablation With High Power Short Duration RF

Atrial Fibrillation Clinical Trial

— AIR HPSD  

Official title:

Atrial Fibrillation Ablation by Means of Very High Power Short Duration (AIR HPSD Registry)

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT05777551
• Other study ID #: AIR HPSD
• Status: Recruiting
• Start date: January 1, 2023
• Est. completion date: December 31, 2027

Study information

• Verified date: March 2024
• Source: Clinica Mediterranea
• Contact: Giuseppe Stabile, MD
• Phone: +393488960534
• Email: gmrstabile[@]tin.it
• Is FDA regulated: No
• Study type: Observational [Patient Registry]

Clinical Trial Summary

This is a prospective, multi-center, research study designed to evaluate the safety and efficacy of pulmonary vein (PV) isolation with high power short duration radiofrequency energy in patients with paroxysmal/persistent atrial fibrillation (AF).

Subjects with paroxysmal/persistent AF will undergo catheter ablation using commercially approved devices (mapping system and catheters).

Patients will be followed up for 12 months to measure the recurrence of AF and its predictors. The primary endpoint will be to investigate the association between clinical and procedural characteristics and the efficacy and the safety of PVI performed with HPSD.

At least 850 consecutive will be enrolled to have an adequate statistical power for the analysis of the primary endpoint. We assume that the freedom form AF recurrence at 12 months will be 80%. Expected R^2 (Cox-Snell) 0.1. Candidate variables to be included in the model:10. Shrinkage level: 0.9. Based on these assumption the minimum number of patients is 850 with 170 events and EPP 17.

Description:

Patients will be screened in ambulatory and scheduled for AF ablation according to current guidelines. Ablation will be usually performed under effective oral anticoagulation. Anticoagulation could be withdrawn before admission, so as antiarrhythmic drugs will be removed before scheduled procedure. Patients in AF or with a CHA2DS2-VASc score ≥ 1 will undergo transesophageal echocardiography within 48 hours prior to the ablation. For all other patients transesophageal echocardiography is optional. Cardiac MRI or Cardiac CT scan could be executed as a reference for volume estimations obtained with the mapping system.

Ablation will be carried out under mild or deep sedation, or general anesthesia according to center preference. At least 2 femoral vein access will be obtained and in some patients 1 subclavian vein. One diagnostic catheter will be positioned in the coronary sinus. One or two transseptal accesses to the left atrium will be achieved using a standard approach. Then, the mapping catheter (LASSO, Penta-ray, Octa-ray catheter) and the ablation catheter (QDot Micro catheter) will be placed in the left atrium. Heparin will be administered before the transseptal punctures to maintain an activated clotting time ≥ 300 seconds for the duration of the procedure. Left atrium mapping will be performed in sinus rhythm. Patients with atrial fibrillation at the beginning of the index procedure will undergo electrical cardioversion. After left atrium reconstruction the effective PV-left atrium electrical connection will be checked with the mapping catheter. In all patients a wide antrum circumferential ablation aimed at PV isolation will be performed using the QDot Micro catheter in QMode+ mode (90 w for 4 sec) for the whole ablation or in an hybrid mode (QMode + for posterior wall and QMode guided by AI in the anterior wall), according to the operator preference. The maximum interlesion distance will be <6 mm (16,17). According to operator preference it will be performed an ablation line encircling each PV or two ablation lines encircling the right and the left PVs. At the end of the ablation effective PV isolation (entry and exit block), will be checked with mapping catheter. After PV isolation will be achieved, the reconnection of the same vein will be evaluated after a 20 minute period from the initial isolation or after adenosine infusion or isoproterenol. If the vein reconnects to the atrium, the ablation will be directed to the gaps identified by the mapping catheter.

All patients will undergo a post-procedural ECG and, optional, an echocardiogram to exclude pericardial effusion or other acute complications.

After ablation, patients will undertake regular follow-up assessments (scheduled at 3 months) including a detailed history, physical examination, 12-lead standard electrocardiography, and 24-h Holter monitoring. Patients who will not report any symptoms related to the previous arrhythmia during a supplementary detailed follow up (6-12 months subsequent to catheter ablation) will be considered free of arrhythmia recurrence

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 850
• Est. completion date: December 31, 2027
• Est. primary completion date: December 31, 2026
• Gender: All
• Age group: 18 Years to 80 Years

Eligibility

Inclusion Criteria:

• Patients with paroxysmal/persistent AF who signed the informed consent

• Patients on active oral anticoagulation

Exclusion Criteria:

• Previous ablation for AF

• Patients with LVEF<35%

• Women potentially pregnant

• Contraindications to X-ray exposure

• Congenital heart disease or cardiac surgery within 1 month

Related Conditions & MeSH terms

• Atrial Fibrillation
• Catheter Ablation

Locations

Country	Name	City	State
France	Centre Cardiologique Du Nord	Paris
Italy	Università Politecnica delle Marche	Ancona
Italy	Ospedale Civile di Asti	Asti
Italy	Ospedale di Conegliano	Conegliano	TV
Italy	Maria cecilia Hospital	Cotignola	RA
Italy	Clinica Montevergine	Mercogliano	AV
Italy	Clinica Mediterranea	Napoli
Italy	Città della Salute e della Scienza di Torino, Dipartimento di Scienze Mediche della Università di Torino.	Torino
United Kingdom	Royal Papworth Hospital	Cambridge

Sponsors (1)

Lead Sponsor	Collaborator
Clinica Mediterranea

Countries where clinical trial is conducted

France,  Italy,  United Kingdom, 

References & Publications (17)

Barkagan M, Contreras-Valdes FM, Leshem E, Buxton AE, Nakagawa H, Anter E. High-power and short-duration ablation for pulmonary vein isolation: Safety, efficacy, and long-term durability. J Cardiovasc Electrophysiol. 2018 Sep;29(9):1287-1296. doi: 10.1111 — View Citation

Cappato R, Negroni S, Pecora D, Bentivegna S, Lupo PP, Carolei A, Esposito C, Furlanello F, De Ambroggi L. Prospective assessment of late conduction recurrence across radiofrequency lesions producing electrical disconnection at the pulmonary vein ostium i — View Citation

Duytschaever M, Vijgen J, De Potter T, Scherr D, Van Herendael H, Knecht S, Kobza R, Berte B, Sandgaard N, Albenque JP, Szeplaki G, Stevenhagen YJ, Taghji P, Wright M, Macours N, Gupta D. Standardized pulmonary vein isolation workflow to enclose veins wit — View Citation

Halbfass P, Wielandts JY, Knecht S, Le Polain de Waroux JB, Tavernier R, De Wilde V, Sonne K, Nentwich K, Ene E, Berkovitz A, Mueller J, Lehmkuhl L, Reichart A, Lusebrink U, Duytschaever M, Deneke T. Safety of very high-power short-duration radiofrequency — View Citation

Hindricks G, Potpara T, Dagres N, Arbelo E, Bax JJ, Blomstrom-Lundqvist C, Boriani G, Castella M, Dan GA, Dilaveris PE, Fauchier L, Filippatos G, Kalman JM, La Meir M, Lane DA, Lebeau JP, Lettino M, Lip GYH, Pinto FJ, Thomas GN, Valgimigli M, Van Gelder I — View Citation

Lemola K, Hall B, Cheung P, Good E, Han J, Tamirisa K, Chugh A, Bogun F, Pelosi F Jr, Morady F, Oral H. Mechanisms of recurrent atrial fibrillation after pulmonary vein isolation by segmental ostial ablation. Heart Rhythm. 2004 Jul;1(2):197-202. doi: 10.1 — View Citation

Leshem E, Zilberman I, Tschabrunn CM, Barkagan M, Contreras-Valdes FM, Govari A, Anter E. High-Power and Short-Duration Ablation for Pulmonary Vein Isolation: Biophysical Characterization. JACC Clin Electrophysiol. 2018 Apr;4(4):467-479. doi: 10.1016/j.ja — View Citation

McLellan AJ, Kumar S, Smith C, Morton JB, Kalman JM, Kistler PM. The role of adenosine following pulmonary vein isolation in patients undergoing catheter ablation for atrial fibrillation: a systematic review. J Cardiovasc Electrophysiol. 2013 Jul;24(7):74 — View Citation

Ouyang F, Antz M, Ernst S, Hachiya H, Mavrakis H, Deger FT, Schaumann A, Chun J, Falk P, Hennig D, Liu X, Bansch D, Kuck KH. Recovered pulmonary vein conduction as a dominant factor for recurrent atrial tachyarrhythmias after complete circular isolation o — View Citation

Park CI, Lehrmann H, Keyl C, Weber R, Schiebeling J, Allgeier J, Schurr P, Shah A, Neumann FJ, Arentz T, Jadidi AS. Mechanisms of pulmonary vein reconnection after radiofrequency ablation of atrial fibrillation: the deterministic role of contact force and — View Citation

Phlips T, Taghji P, El Haddad M, Wolf M, Knecht S, Vandekerckhove Y, Tavernier R, Duytschaever M. Improving procedural and one-year outcome after contact force-guided pulmonary vein isolation: the role of interlesion distance, ablation index, and contact — View Citation

Reddy VY, Grimaldi M, De Potter T, Vijgen JM, Bulava A, Duytschaever MF, Martinek M, Natale A, Knecht S, Neuzil P, Purerfellner H. Pulmonary Vein Isolation With Very High Power, Short Duration, Temperature-Controlled Lesions: The QDOT-FAST Trial. JACC Cli — View Citation

Richard Tilz R, Sano M, Vogler J, Fink T, Saraei R, Sciacca V, Kirstein B, Phan HL, Hatahet S, Delgado Lopez L, Traub A, Eitel C, Schluter M, Kuck KH, Heeger CH. Very high-power short-duration temperature-controlled ablation versus conventional power-cont — View Citation

Sallo Z, Perge P, Balogi B, Orban G, Piros K, Herczeg S, Nagy KV, Osztheimer I, Abraham P, Merkely B, Geller L, Szegedi N. Impact of High-Power and Very High-Power Short-Duration Radiofrequency Ablation on Procedure Characteristics and First-Pass Isolatio — View Citation

Stabile G, Lepillier A, De Ruvo E, Scaglione M, Anselmino M, Sebag F, Pecora D, Gallagher M, Rillo M, Viola G, Rossi L, De Santis V, Landolina M, Castro A, Grimaldi M, Badenco N, Del Greco M, De Simone A, Pisano E, Abbey S, Lamberti F, Pani A, Zucchelli G — View Citation

Stabile G, Schillaci V, Strisciuglio T, Arestia A, Agresta A, Shopova G, De Simone A, Solimene F. In vivo biophysical characterization of very high power, short duration, temperature-controlled lesions. Pacing Clin Electrophysiol. 2021 Oct;44(10):1717-172 — View Citation

Wang XH, Liu X, Sun YM, Gu JN, Shi HF, Zhou L, Hu W. Early identification and treatment of PV re-connections: role of observation time and impact on clinical results of atrial fibrillation ablation. Europace. 2007 Jul;9(7):481-6. doi: 10.1093/europace/eum — View Citation

* Note: There are 17 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Number of participants with treatment-related adverse events as assessed by CTCAE v4.0	Number of participants with treatment-related adverse events, acute and at 30-day and 12-month as assessed by CTCAE v4.0	30 days and 12 months after ablation
Primary	Association between clinical and procedural characteristics and the percentage of arrhythmia recurrence rate after PV isolation performed with HPSD.	to assess the efficacy of the procedure in terms of atrial arrhythmia recurrence-free rate (binary outcome), with a number of candidate predictors equal to 10	12 months after ablation
Secondary	Percentage of acute pulmonary vein reconnection reconnection	After PV isolation will be achieved, the reconnection of the same vein will be evaluated after a 20 minute period from the initial isolation or after adenosine infusion or isoproterenol.	20 minutes after ablation
Secondary	Procedural time	The Investigators will calculate the overall procedural time (min)	during the procedure
Secondary	Percentage of patients with atrial arrhythmias recurrence during the blanking period	Number of patients with an atrial arrhythmia (atrial fibrillation, atrial tachycardia, atrial flutter) episode lasting at least 30 sec during the 3 month blanking period after the index ablation	3 months after ablation
Secondary	Impact of anaesthesia type	The Investigators will evaluate the type of anesthesia: (mild sedation, deep sedation, general anesthesia), the anesthetic drugs used and their dose in mg	during the procedure
Secondary	Evaluation of pain perception during ablation	The Investigators will assess the pain during the ablation with a 0-10 pain scale (0 no pain, 1-3 mild, 4-6 moderate, 7-9 severe, 10 very severe).	during the procedure
Secondary	Fluoroscopy time	The Investigators will calculate the overall fluoroscopy time (sec)	during the procedure
Secondary	Radiofrequency time	The Investigators will calculate the overall radiofrequency time (sec)	during the procedure