ClinicalTrials.gg
RecruitingNCT07772518PFA-VISIONUpdated Aug 19, 2026

Intracardiac Echocardiography-guided Versus Electroanatomical Mapping-guided Pulsed Field Ablation for Paroxysmal Atrial Fibrillation

An interventional study of In the ICE group, positioning/contact of the ablation catheter will be performed under ICE guidance. In the mapping group, guidance will be performed using three-dimensional electroanatomical mapping. in Paroxysmal Atrial Fibrillation (PAF), sponsored by Mitera Hospital. Recruiting at 8 sites in 8 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-19.

Sponsored by Mitera Hospital · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Aug 2026; still recruiting 3 months later.

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Phase
Not applicable
Study type
Interventional
Enrollment
292
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 47 studies in Atrial Fibrillation with a site in Croatia — 17 open to participants now, 24 under way, 2 of them phase 3. Atrial Fibrillation · Croatia.

Planned enrollment
12th of 38
292 · median 200
Started
2026
with 6 others
No phase
30 of 47
11 open now
Primary completion
2028-12
later than 21 of 23 live
Registered
46th of 47
by date

Among the 47 studies in Atrial Fibrillation with a site in Croatia, this one is the 12th largest by planned enrollment of the 38 interventional ones that give a count, is one of 7 that started in 2026, is one of 30 with no phase, reaches primary completion later than 21 of the 23 other live ones, and was the 46th registered.

Atrial Fibrillation

4,009 studies on the registry are indexed under Atrial Fibrillation; 960 are open to participants now.

Browse Atrial Fibrillation studies →

Open to participants now

17 of the 47 studies in Atrial Fibrillation with a site in Croatia are open now. Recruiting first, the newest first:

11 more — sign in →

All 17 open studies →

A study can be open while its sites in Croatia have not opened yet or have stopped. Only those recruiting at a site in Croatia →

Who these studies take

Of the 611 Atrial Fibrillation studies recruiting now, 407 (67%) set no upper age limit and 43 (7%) stop at 75 or younger; 21 take children under 18; 43 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 47 studies in Atrial Fibrillation with a site in Croatia, or all of them as a file.
02

Study summary

This is a prospective, randomized clinical trial, which will be conducted in selected European centers. The objective is to compare two commonly used strategies to guide pulsed-field ablation (PFA) in patients with paroxysmal atrial fibrillation (AF). Patients with paroxysmal AF planned to undergo PFA will be randomized to intracardiac echocardiography (ICE)-guided or electroanatomical mapping-guided (OPAL HDx mapping system) ablation procedure. The primary efficacy endpoint will be freedom from atrial arrhythmia (AF, atrial flutter, atrial tachycardia) recurrence off antiarrhythmic drug therapy and without the need for electrical cardioversion or repeat ablation, with a follow-up duration of 12 months. The primary safety endpoint will be the incidence of predefined safety outcomes.

03

Conditions studied

  • Paroxysmal Atrial Fibrillation (PAF)

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Keywords

  • atrial fibrillation
  • paroxysmal atrial fibrillation
  • intracardiac echocardiography
  • ICE
  • FARAVIEW
  • pulsed field ablation
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • History of paroxysmal AF.
  • Scheduled to undergo AF catheter ablation with the FARAPULSE (Boston Scientific) PFA system.

Exclusion criteria

Exclusion Criteria:

  • Any to AF catheter ablation.
  • History of previous left atrial ablation.
  • Need for additional ablation beyond pulmonary vein isolation.
  • Inability to provide written .
  • Any factor that, in the investigator's judgment, renders the patient unsuitable for participation or may compromise their safety.
  • \< 30 mL/min/1.73 m2
  • class III/IV heart failure
  • Major cardiovascular events within 90 days
  • Secondary AF owing to reversible causes
  • Intracardiac thrombus or other conditions making left atrial instrumentation unsafe
  • Severe valvular disease
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
292 participants (estimated)

Study arms

  • Other
    ICE

    Intracardiac echocardiography-guided group

    Other: In the ICE group, positioning/contact of the ablation catheter will be performed under ICE guidance. In the mapping group, guidance will be performed using three-dimensional electroanatomical mapping.

  • Other
    Mapping

    Three-dimensional electroanatomical mapping-guided group

    Other: In the ICE group, positioning/contact of the ablation catheter will be performed under ICE guidance. In the mapping group, guidance will be performed using three-dimensional electroanatomical mapping.

Interventions

  • OtherIn the ICE group, positioning/contact of the ablation catheter will be performed under ICE guidance. In the mapping group, guidance will be performed using three-dimensional electroanatomical mapping.

    Ablation procedure (electrical isolation of the pulmonary veins) will be performed according to routine clinical practice. In the ICE group, positioning of the ablation catheter and confirmation of contact with the targeted tissue will be performed under ICE guidance. In the mapping group, guidance will be performed using three-dimensional electroanatomical mapping with the FARAVIEW system (OPAL HDx, software version 7.0, Boston Scientific). PFA will be delivered using field-tag feature ensuring number of applications and stacking as suggested by IFU. In the mapping group, the use of ICE will only be allowed to guide the transseptal puncture in order to ensure procedural safety in both groups.

06

What researchers measure

Primary outcomes

  1. Arrhythmia-free survival

    Primary efficacy endpoint: Number of patients without atrial arrhythmia recurrence (AF, atrial flutter, atrial tachycardia) off antiarrhythmic drug therapy and without the need for electrical cardioversion or repeat ablation, after a blanking period of 2 months. A recurrence is defined as any episode of atrial tachyarrhythmia recorded on standard 12-lead ECG or any episode lasting ≥6 minutes on Holter monitor (or CIED with atrial sensing capabilities).

    Time frame: up to 12 months

  2. Complications

    Composite primary safety endpoint: Number of participants experiencing at least one of the following prespecified complications (major safety events): Stroke, transient ischemic attack, or systemic embolism Coronary spasm Myocardial infarction Cardiac tamponade Clinically relevant esophageal complication Clinically relevant pulmonary vein stenosis Diaphragmatic paralysis persisting for more than 6 months Acute kidney injury Bleeding requiring transfusion Major vascular complication Pericarditis or vagal nerve injury Heart failure or pulmonary edema Sudden death within 30 days of the procedure Any device- or procedure-related death For the composite primary safety endpoint, each participant will be counted only once, regardless of the number or type of qualifying events experienced.

    Time frame: up to 12 months

Secondary outcomes

  1. Arrhythmia-free survial (>30 sec)

    Number of patients without atrial arrhythmia recurrence (AF, atrial flutter, atrial tachycardia) lasting \>30 seconds on Holter monitoring, off antiarrhythmic drug therapy and without the need for electrical cardioversion or repeat ablation, after an initial blanking period of 2 months.

    Time frame: up to 12 months

  2. Procedure time (min)

    Time from femoral puncture to catheter removal (minutes).

    Time frame: Periprocedural

  3. Left atrial dwell time (min)

    Time from transseptal puncture to catheter withdrawal from the left atrium (minutes).

    Time frame: Periprocedural

  4. Number of lesions

    Total number of ablation lesions deployed.

    Time frame: Periprocedural

  5. Fluoroscopy time (min)

    Duration of fluoroscopy (minutes).

    Time frame: Periprocedural

  6. Fluoroscopy dose (cGy·cm²)

    Total fluoroscopy dose (measured in cGy·cm²).

    Time frame: Periprocedural

07

Study locations

1 of 8 sites recruiting
  • University Hospital Centre Zagreb (KBC Zagreb)
    Zagreb, Croatia
    Not yet recruiting
  • Department of Cardiology, IKEM
    Prague, Czechia
    Not yet recruiting
  • Hygeia Hospital, 8th Cardiology Department
    Athens, Greece
    Recruiting
  • Heart and Vascular Center, Semmelweis University
    Budapest, Hungary
    Not yet recruiting
  • Marche Polytechnic University / Marche University Hospital
    Ancona, Italy
    Not yet recruiting
  • Grochowski Hospital, Centre of Postgraduate Medical Education
    Warsaw, Poland
    Not yet recruiting
  • Department of Arrhythmology, Institute of Cardiovascular Diseases
    Banská Bystrica, Slovakia
    Not yet recruiting
  • University Medical Centre Ljubljana (UKC Ljubljana)
    Ljubljana, Slovenia
    Not yet recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2026 (actual). Primary completion is estimated for Dec 2028, 28 months after the start.

Of 795 non-industry interventional studies with no phase under Atrial Fibrillation, half reached primary completion within 39 months of starting (the median), counting those still running; a quarter within 21 and three quarters within 59. This study's planned 28 months is below that.

Counting every sponsor, half of 1,050 studies reached it within 33 months; a quarter within 18 and three quarters within 54.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 10, 2026
First posted
Aug 19, 2026
StartActual
Aug 1, 2026
Primary completionEst.
Dec 2028
CompletionEst.
Dec 2028
Last update
Aug 19, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 19, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07772518
Lead sponsor
Mitera Hospital
Responsible party
Stylianos Tzeis (Director of Cardiology Department, Mitera Hospital, Hygeia Group, Athens, Greece, Mitera Hospital) — Principal investigator
First posted
Aug 19, 2026
Start date
Aug 1, 2026
Primary completion
Dec 2028 (estimated)
Completion
Dec 2028 (estimated)
Last update
Aug 19, 2026

Study contacts

Stylianos Tzeis, MD, PhD, FEHRA
Contact
steis@otenet.gr
+302106869777

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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