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June 5, 2026Circulation Reports0 citationsOpen Access

Mitigating Iatrogenic Air Entrainment During Pulsed Field Ablation　― A Comparative Study of a Novel Submerged-Entry Technique Using the VARIPULSETM System ―

TCTing‐Yung ChangCLC Y LinPWPei‐Yi Wang

Key Points

  • Evaluate air intrusion patterns during pulsed field ablation and assess the effectiveness of a custom-made Adapter Sink to prevent air entry.
  • Compared air intrusion patterns using the VARIPULSETM PFA system with a small sheath lumen.
  • Assessed the performance of a custom-made Adapter Sink designed to eliminate air entry during procedures.
  • The Adapter Sink significantly reduced air intrusion during pulsed field ablation.
  • Air embolism risk was notably decreased, enhancing procedural safety.

Abstract

Background: Systemic air embolism remains a critical risk during left atrial procedures, particularly during the frequent exchanges required in pulsed field ablation (PFA). In this study we evaluated the air intrusion patterns using the VARIPULSETMPFA system with a relatively small sheath lumen, and assessed a custom-made “Adapter Sink” designed to eliminate air entry.

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Cite This Study

Chang et al. (2026) studied this question.

synapsesocial.com/papers/6a22672f763171746d545db8https://doi.org/10.1253/circrep.cr-26-0102
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