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- W4255292467 abstract "Radiofrequency (RF) is the most frequently used mode of ablation energy for most atrial and ventricular arrhythmias. A major limitation of standard RF ablation is the relatively small depth of tissue injury produced, which can potentially limit the success of the ablation procedure. Larger ablation lesions can be obtained by increasing the size and surface area of the ablation electrode, using an electrode material with high thermal conductivity, active or passive cooling of the electrode-tissue interface, and the use of pulsed energy. Furthermore, real-time measurement of tissue contact and contact force can help to optimize catheter-tissue contact and improve lesion formation. Alternative ablation energy sources include cryoenergy, laser, microwave, and ultrasound. Currently, two different types of cryoablation catheters are available: traditional-tip ablation catheters and balloon catheters. The cryoballoon catheter is specifically designed for pulmonary vein (PV) isolation. Catheter-based cryoablation can have specific advantages over RF energy in certain patient populations; however, it is unlikely that cryoablation will replace standard RF ablation in unselected cases. Laser energy has been used with balloon technology for PV isolation. Microwave ablation has been increasingly used intraoperatively (epicardially or endocardially) during surgical maze procedures for atrial fibrillation (AF). Currently, transvenous microwave catheter ablation is available only for investigational use. Although PV isolation with high-intensity focused ultrasound had proven to be successful, it did not meet the safety standards required for treatment of AF, and this led to a halt of its clinical use." @default.
- W4255292467 created "2022-05-12" @default.
- W4255292467 creator A5016777668 @default.
- W4255292467 creator A5047654727 @default.
- W4255292467 creator A5090323803 @default.
- W4255292467 date "2019-01-01" @default.
- W4255292467 modified "2023-10-18" @default.
- W4255292467 title "Ablation Energy Sources" @default.
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