Spatial correction improves accuracy of catheter positioning during ablation of premature ventricular contractions: differences between ventricular outflow tracts and other localizations
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Spatial correction improves accuracy of catheter positioning during ablation of premature ventricular contractions: differences between ventricular outflow tracts and other localizations. / Nies, M; Schleberger, R; Dinshaw, L; Klatt, N; Muenkler, P; Jungen, C; Rottner, L; Lemoine, M D; Reißmann, B; Rillig, A; Metzner, A; Kirchhof, P; Meyer, C.
In: BMC CARDIOVASC DISOR, Vol. 22, No. 1, 312, 13.07.2022.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Spatial correction improves accuracy of catheter positioning during ablation of premature ventricular contractions: differences between ventricular outflow tracts and other localizations
AU - Nies, M
AU - Schleberger, R
AU - Dinshaw, L
AU - Klatt, N
AU - Muenkler, P
AU - Jungen, C
AU - Rottner, L
AU - Lemoine, M D
AU - Reißmann, B
AU - Rillig, A
AU - Metzner, A
AU - Kirchhof, P
AU - Meyer, C
N1 - © 2022. The Author(s).
PY - 2022/7/13
Y1 - 2022/7/13
N2 - BACKGROUND: Hybrid activation mapping is a novel tool to correct for spatial displacement of the mapping catheter due to asymmetrical contraction of myocardium during premature ventricular contractions (PVC). The aim of this study is to describe and improve our understanding of spatial displacement during PVC mapping as well as options for correction using hybrid activation mapping.METHODS AND RESULTS: We analyzed 5798 hybrid mapping points in 40 acquired hybrid maps of 22 consecutive patients (age 63 ± 16 years, 45% female) treated for premature ventricular contractions (PVCs). Median PVC-coupling interval was 552 ms (IQR 83 ms). Spatial displacement was determined by measuring the dislocation of the catheter tip during PVC compared to the preceding sinus beat. Mean spatial displacement was 3.8 ± 1.5 mm for all maps. The displacement was 1.3 ± 0.4 mm larger for PVCs with non-outflow-tract origin compared to PVCs originating from the ventricular outflow tracts (RVOT/LVOT; p = 0.045). Demographic parameters, PVC-coupling-interval and chamber of origin had no significant influence on the extent of spatial displacement.CONCLUSION: Ectopic activation of the ventricular myocardium during PVCs results in spatial displacement of mapping points that is significantly larger for PVCs with non-outflow-tract origin. The correction for spatial displacement may improve accuracy of radiofrequency current (RFC)-application in catheter ablation of PVCs.
AB - BACKGROUND: Hybrid activation mapping is a novel tool to correct for spatial displacement of the mapping catheter due to asymmetrical contraction of myocardium during premature ventricular contractions (PVC). The aim of this study is to describe and improve our understanding of spatial displacement during PVC mapping as well as options for correction using hybrid activation mapping.METHODS AND RESULTS: We analyzed 5798 hybrid mapping points in 40 acquired hybrid maps of 22 consecutive patients (age 63 ± 16 years, 45% female) treated for premature ventricular contractions (PVCs). Median PVC-coupling interval was 552 ms (IQR 83 ms). Spatial displacement was determined by measuring the dislocation of the catheter tip during PVC compared to the preceding sinus beat. Mean spatial displacement was 3.8 ± 1.5 mm for all maps. The displacement was 1.3 ± 0.4 mm larger for PVCs with non-outflow-tract origin compared to PVCs originating from the ventricular outflow tracts (RVOT/LVOT; p = 0.045). Demographic parameters, PVC-coupling-interval and chamber of origin had no significant influence on the extent of spatial displacement.CONCLUSION: Ectopic activation of the ventricular myocardium during PVCs results in spatial displacement of mapping points that is significantly larger for PVCs with non-outflow-tract origin. The correction for spatial displacement may improve accuracy of radiofrequency current (RFC)-application in catheter ablation of PVCs.
KW - Aged
KW - Female
KW - Humans
KW - Male
KW - Middle Aged
KW - Catheter Ablation/adverse effects
KW - Catheters
KW - Heart Ventricles
KW - Treatment Outcome
KW - Ventricular Premature Complexes/diagnosis
U2 - 10.1186/s12872-022-02741-3
DO - 10.1186/s12872-022-02741-3
M3 - SCORING: Journal article
C2 - 35831801
VL - 22
JO - BMC CARDIOVASC DISOR
JF - BMC CARDIOVASC DISOR
SN - 1471-2261
IS - 1
M1 - 312
ER -