Key result
A balloon occlusion technique is described to overcome the convective warming effect of coronary sinus blood flow during transcatheter cryoablation.
A balloon occlusion technique may help overcome the convective warming effect of coronary sinus blood flow during cryoablation.
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May aid cryoablation near coronary sinus; leaves open prospective safety and efficacy data.
Since its first human application in 1998,1 transcatheter cryoablation has emerged as a viable alternative to radiofrequency ablation. Its enhanced safety profile, including an obligatory phase of reversible tissue inhibition prior to permanent cellular damage, has rendered cryoablation an attractive treatment option for perinodal and peri-Hissian substrates.2 Several factors may influence the creation of effective and durable cryoablation lesions, including electrode-tip size, cooling rate, nadir temperature, electrode-tip-to-tissue contact pressure and orientation, duration of freezing, number of freeze–thaw cycles, and convective warming by local blood flow.
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Ascoeta et al. (2015) studied perinodal and peri-Hissian substrates. Balloon occlusion technique during cryoablation was evaluated. A balloon occlusion technique is described to overcome the convective warming effect of coronary sinus blood flow during transcatheter cryoablation.
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