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Cited by 624

The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.

Novel Contact Force Sensor Incorporated in Irrigated Radiofrequency Ablation Catheter Predicts Lesion Size and Incidence of Steam Pop and Thrombus

Open access
Yokoyama, Katsuaki, Nakagawa, Hiroshi, Shah, Dipen C., Lambert, Hendrik, Leo, Giovanni, Aeby, Nicolas, Ikeda, Atsushi, Pitha, Jan V., Sharma, Tushar, Lazzara, Ralph, Jackman, Warren M.·2008·Circulation: Arrhythmia and Electrophysiology

Abstract

Background— An open-irrigated radiofrequency (RF) ablation catheter was developed to measure contact force (CF). Three optical fibers measure microdeformation of the catheter tip. The purpose of this study was to (1) validate the accuracy of CF sensor (CFS) (bench test); and (2) determine the relationship between CF and tissue temperatures, lesion size, steam pop, and thrombus during RF ablation using a canine thigh muscle preparation. Methods and Results— CFS measurements (total 1409) from 2 catheters in 3 angles (perpendicular, parallel, and 45�) were compared with a certified balance (range, 0 to 50 g). CFS measurements correlated highly ( R 2 ≥0.988; mean error, ≤1.0 g). In 10 anesthetized dogs, a skin cradle over the thigh muscle was superfused with heparinized blood at 37�C. A 7F catheter with 3.5-mm saline-irrigated electrode and CFS (Endosense) was held perpendicular to the muscle at CF of 2, 10, 20, 30, and 40 g. RF was delivered (n=100) for 60 seconds at 30 or 50 W (irrigation 17 or 30 mL/min). Tissue temperature (3 and 7 mm depths), lesion size, thrombus, and steam pop increased significantly with increasing CF at each RF power. Lesion size was greater with applications of lower power (30 W) and greater CF (30 to 40 g) than at high power (50 W) with lower CF (2 to 10 g). Conclusions— This novel ablation catheter, which accurately measures CF, confirmed CF is a major determinant of RF lesion size. Steam pop and thrombus incidence also increases with CF. CFS in an open-irrigated ablation catheter that may optimize the selection of RF power and application time to maximize lesion formation and reduce the risk of steam pop and thrombus.

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Crossref · 10.1161/circep.108.803650

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Metadata

Authors
Yokoyama, K., Nakagawa, H., Shah, D. C., Lambert, H., Leo, G., Aeby, N., Ikeda, A., Pitha, J. V., Sharma, T., Lazzara, R., & Jackman, W. M.
Venue
Circulation: Arrhythmia and Electrophysiology
Published
2008-12
Volume
1
Issue
5
Pages
354-362
ISSN
  • 1941-3084 (ISSN-L)
  • 1941-3149
OpenAlex
W2130349647
Cited by
624
References
13
FWCI
11.88
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Novel Contact Force Sensor Incorporated in Irrigated Radiofrequency Ablation Catheter Predicts Lesion Size and Incidence of Steam Pop and Thrombus. https://app.cochat.ai/papers/10.1161/circep.108.803650
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Yokoyama, K., Nakagawa, H., Shah, D. C., Lambert, H., Leo, G., Aeby, N., Ikeda, A., Pitha, J. V., Sharma, T., Lazzara, R., & Jackman, W. M. (2008). Novel Contact Force Sensor Incorporated in Irrigated Radiofrequency Ablation Catheter Predicts Lesion Size and Incidence of Steam Pop and Thrombus. Circulation: Arrhythmia and Electrophysiology. https://doi.org/10.1161/circep.108.803650

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