Respiratory failure & ventilation
Respiration-Related Catheter Displacement and Physiological Tolerance of High-Frequency Very Low Tidal Volume Ventilation With Peak Pressure Limitation During Atrial Fibrillation Ablation: A Prospective 1-Way Crossover Pilot Study
Main finding · Catheter displacementResult — go to the resultDifference −4.99 mmAuthors' conclusion
HFvLTV-cPP was associated with marked motion reduction and short-term physiological tolerance in a selected cohort.
Study context
- Population
- Consecutive eligible adults undergoing radiofrequency catheter ablation for atrial fibrillation (AF) under GA, tertiary electrophysiology centerconsecutive
- Participants
- 52 participants
- Exposure
- HFvLTV-cPP vs standard ventilation
- Outcome
- Respiration-related catheter displacement
Methodological detailssingle-center, fixed-sequence within-patient crossover, 1-way crossover
- Single-center
- Fixed-sequence within-patient crossover
- 1-way crossover
Main finding
Catheter displacement
Difference
−4.99 mm
P < 0.001
By group
As reported in the abstract
Observational data: associations, not effects.
Further findings
Contact force
- Similar
PaCO2
- PaCO2 >60 mmHg
- 9.6%
- PaCO2 increased from 38.0 ± 4.9 to 49.9 ± 7.2 mmHg
Oxygenation
- Remained preserved
Plateau and driving pressure
- Plateau pressures not increased; driving pressure lower
Safety
Procedural complications
- No procedural complications occurred
Early recovery
- Rapid early recovery, without early respiratory or neurologic complications
Original publication
Respiration-Related Catheter Displacement and Physiological Tolerance of High-Frequency Very Low Tidal Volume Ventilation With Peak Pressure Limitation During Atrial Fibrillation Ablation: A Prospective 1-Way Crossover Pilot Study. J Cardiothorac Vasc Anesth. Published 24 June 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →