Cryoballoon ablation for atrial fibrillation without the use of a contrast medium: a combination of the intracardiac echocardiography and pressure wave monitoring guided approach

In cryoballoon ablation (CBA), a contrast medium is commonly used to confirm balloon occlusion of the pulmonary veins (PVs). However, a contrast medium cannot always be used in patients with renal dysfunction and allergy. The present study aimed to assess the efficacy and safety of CBA without the u...

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Veröffentlicht in:Heart and vessels 2022-05, Vol.37 (5), p.765-774
Hauptverfasser: Makino, Yuichiro, Mizutani, Yoshiaki, Yamashita, Daiki, Yonekawa, Jun, Satake, Akinori, Kurobe, Masanari, Hiramatsu, Takatsugu, Ichimiya, Hitoshi, Uchida, Yasuhiro, Watanabe, Junji, Kanashiro, Masaaki, Ichimiya, Satoshi, Yanagisawa, Satoshi, Inden, Yasuya, Murohara, Toyoaki
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container_end_page 774
container_issue 5
container_start_page 765
container_title Heart and vessels
container_volume 37
creator Makino, Yuichiro
Mizutani, Yoshiaki
Yamashita, Daiki
Yonekawa, Jun
Satake, Akinori
Kurobe, Masanari
Hiramatsu, Takatsugu
Ichimiya, Hitoshi
Uchida, Yasuhiro
Watanabe, Junji
Kanashiro, Masaaki
Ichimiya, Satoshi
Yanagisawa, Satoshi
Inden, Yasuya
Murohara, Toyoaki
description In cryoballoon ablation (CBA), a contrast medium is commonly used to confirm balloon occlusion of the pulmonary veins (PVs). However, a contrast medium cannot always be used in patients with renal dysfunction and allergy. The present study aimed to assess the efficacy and safety of CBA without the use of a contrast medium. We retrospectively examined consecutive patients with paroxysmal atrial fibrillation (PAF) who underwent first-time CBA. We compared the procedural results and outcomes in patients for whom a contrast medium was used (contrast group) and those from whom a contrast medium was not used (non-contrast group). In the non-contrast group, we used saline injection on the intracardiac echocardiography and pressure wave monitoring for PV occlusion. Fifty patients (200 PVs) and 22 patients (88 PVs) underwent CBA with and without a contrast medium, respectively. The success rate of PV isolation with CBA alone was 93% and 90% in the non-contrast and contrast groups, respectively ( p  = 0.40). The fluoroscopy time and nadir temperature were significantly lower in the non-contrast group as compared to that in the contrast group. The recurrence rate 1 year after ablation did not differ between the two groups (18% vs. 18%, p  > 0.99). Furthermore, the number of reconnected PVs in patients with recurrence was significantly lower in the non-contrast group than in the contrast group (6% vs. 36%, p  = 0.017). In conclusion, CBA using the intracardiac echocardiography and pressure monitoring approach without the use of a contrast medium was safe and efficient.
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subjects Ablation
Atrial Fibrillation - diagnosis
Atrial Fibrillation - surgery
Biomedical Engineering and Bioengineering
Cardiac arrhythmia
Cardiac Surgery
Cardiology
Catheter Ablation - adverse effects
Contrast media
Cryosurgery - adverse effects
Cryosurgery - methods
Echocardiography
Echocardiography - methods
Elastic waves
Fibrillation
Fluoroscopy
Humans
Medicine
Medicine & Public Health
Microscopes
Monitoring
Occlusion
Original Article
Pressure
Pulmonary Veins - diagnostic imaging
Pulmonary Veins - surgery
Recurrence
Renal function
Retrospective Studies
Treatment Outcome
Vascular Surgery
title Cryoballoon ablation for atrial fibrillation without the use of a contrast medium: a combination of the intracardiac echocardiography and pressure wave monitoring guided approach
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