Ring Char Formation During High‐Power, Short‐Duration Ablation Using an Irrigated Six‐Hole Contact Force Sensing Tip Catheter
Yasuteru Yamauchi, Yuichiro Sagawa, Kazuya Murata, Hirofumi Arai, Atsuhito Oda, Kazutaka Aonuma
TL;DR
A study observed a ring-shaped blood clot forming during high-power ablation near the right pulmonary veins using a specific catheter.
Contribution
Demonstrates ring-shaped thrombus formation during high-power ablation using an irrigated six-hole catheter.
Findings
High-power ablation caused abrupt impedance increase from 120 to 180 Ω after 11 seconds.
A circumferential thrombus formed and adhered to the catheter tip irrigation holes.
Thrombus was visible after catheter withdrawal and removal.
Abstract
During circumferential ablation of the right pulmonary veins (PVs), high‐power, short‐duration (HPSD) ablation at the anterior wall of the right PVs, corresponding to the left atrial septal side, resulted in an abrupt impedance increase from 120 to 180 Ω, occurring 11 s after RF delivery initiation (A). After an abrupt impedance rise, withdrawal of the ablation catheter from the long sheath revealed a circumferential thrombus adhering directly above the irrigation holes at the catheter tip (B). The catheter tip after thrombus removal is shown in (C), and the ring‐shaped thrombus that adhered to the catheter tip is displayed in (D).
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsCardiac Arrhythmias and Treatments · Atrial Fibrillation Management and Outcomes · Cardiac tumors and thrombi