Use of a visualizable steerable sheath in ablation of persistent atrial fibrillation with the QDOT MICRO™ catheter (VISTA-Q-Study)

Use of a visualizable steerable sheath in ablation of persistent atrial fibrillation with the QDOT MICRO™ catheter (VISTA-Q-Study) - VISTA-Q-Study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00031493

Enrollment

120

Registered

2023-04-14

Start date

2023-07-21

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Persistent atrial fibrillation

Interventions

Group 1: Pulmonary vein isolation with the Q-DOT Micro™ catheter and the Vizigo™ steerable sheath. Group 2: Pulmonary vein isolation with the Q-DOT Micro™ catheter and a non-steerable SL0 sheath.

Eligibility

Sex/Gender

All

Age

18 Years to 75 Years

Inclusion criteria

Inclusion criteria: Ablation of persistent atrial fibrillation < 6 months duration Initial procedure Presence of informed consent

Exclusion criteria

Exclusion criteria: Obesity with body mass index >35kg/m2 (due to expected higher complication rates). - Chronic renal insufficiency with s-creatinine >1.5mg/dl, GFR 6 month.

Design outcomes

Primary

Measure	Time frame
Catheter stability measured by the following surrogate parameters: Contact pressure Impedance drop	—

Secondary

Measure	Time frame
First-pass isolation or first-pass block Procedure duration Temperature development	—

Countries

Germany

Contacts

Public ContactRaphael Spittler

Universitätsmedizin

raphael.spittler@unimedizin-mainz.de06131177218

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Aug 9, 2026