TY - JOUR
T1 - Identification of Radiofrequency Ablation Catheter Parameters That May Induce Intracardiac Steam Pops
T2 - Direct Visualization of Elicitation in Reanimated Swine Hearts
AU - Iles, Tinen L.
AU - Quallich, Stephen G.
AU - Iaizzo, Paul A.
N1 - Publisher Copyright:
© 2018, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2019/6/15
Y1 - 2019/6/15
N2 - Radiofrequency, a common ablation modality, is used clinically to terminate cardiac arrhythmias. With excessive heating, complications sometimes occur when the applied energy generates steam pops, which cause release of energy in the form of tissue and/or air emboli. In this study, we investigated numerous parameters potentially associated with intracardiac steam pops including (1) wattage, (2) catheter tip temperature, (3) catheter irrigation, (4) anatomic site, and (5) repeat ablations at a given site. Using unique Visible Heart® methodologies in reanimated swine hearts, we visualized 539 ablations; steam pops developed in 140 of these ablations. The incidence of steam pops significantly increased for both nonirrigated and irrigated ablations at 40 W (p < 0.005), and for nonirrigated ablations with catheter contact angles perpendicular to the tissue or that encompassed larger surface areas (p < 0.05). To minimize the incidence of steam pops, clinicians performing radiofrequency ablations must consider catheter parameters.
AB - Radiofrequency, a common ablation modality, is used clinically to terminate cardiac arrhythmias. With excessive heating, complications sometimes occur when the applied energy generates steam pops, which cause release of energy in the form of tissue and/or air emboli. In this study, we investigated numerous parameters potentially associated with intracardiac steam pops including (1) wattage, (2) catheter tip temperature, (3) catheter irrigation, (4) anatomic site, and (5) repeat ablations at a given site. Using unique Visible Heart® methodologies in reanimated swine hearts, we visualized 539 ablations; steam pops developed in 140 of these ablations. The incidence of steam pops significantly increased for both nonirrigated and irrigated ablations at 40 W (p < 0.005), and for nonirrigated ablations with catheter contact angles perpendicular to the tissue or that encompassed larger surface areas (p < 0.05). To minimize the incidence of steam pops, clinicians performing radiofrequency ablations must consider catheter parameters.
KW - Atrial fibrillation
KW - Cardiac arrhythmia
KW - Radiofrequency ablation
KW - Reanimated swine heart
KW - Steam pops
KW - Visualization
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U2 - 10.1007/s12265-018-9844-7
DO - 10.1007/s12265-018-9844-7
M3 - Article
C2 - 30430355
AN - SCOPUS:85056651579
SN - 1937-5387
VL - 12
SP - 250
EP - 256
JO - Journal of cardiovascular translational research
JF - Journal of cardiovascular translational research
IS - 3
ER -