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Case Reports
. 2023 Feb 14;9(5):300-303.
doi: 10.1016/j.hrcr.2023.02.003. eCollection 2023 May.

Nonsustained premature atrial contraction ablation guided by single-beat mapping using charge density mapping

Danish Bawa  1 , Douglas Darden  1 , Adnan Ahmed  1 , Madison J Spence  2 , Mitchell Lakner  2 , Dhanunjaya Lakkireddy  1
Affiliations
Case Reports

Nonsustained premature atrial contraction ablation guided by single-beat mapping using charge density mapping

Danish Bawa et al. HeartRhythm Case Rep. .
No abstract available

Keywords: Atrial tachycardia; Catheter ablation; Left atrial appendage; Premature atrial contraction; Pulmonary veins; Sequential mapping; Supraventricular tachycardia; Trigger mapping.

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Figures

Figure 1
Figure 1
A: Premature atrial contraction (PAC) location: posterior base of the left inferior pulmonary vein (LIPV; red disc). Dipole 1 at the earliest source of charge (ie, origin of PAC). Gold dots indicate where ablation occurred. B: Dipole 1 (blue) signal at origin of the LIPV PAC map∼25 ms pre–P wave. CR unipolar signals in orange; CS unipolar signals in light blue; body surface leads II, V1, and V6 in white. C: Map visualization of the activation at the location of abrupt change in dipole activation around LIPV from -QS to R wave on the unipolar leads. Gold dots indicate where ablation occurred. LAA = left atrial appendage; LSPV = left superior pulmonary vein; RIPV = right inferior pulmonary vein; RSPV = right superior pulmonary vein; MV = mitral valve; PA = posterior anterior.
Figure 2
Figure 2
A: Premature atrial contraction (PAC) location: anterior aspect of left atrial appendage (LAA; green discs). Tachycardia mapped to the location of the LAA PAC. Dipole 1 at the earliest source of charge on LAA PAC map. Gold dots indicate where ablation occurred. B: Dipole 1 signal at origin of charge activation on the LAA PAC map ∼25 ms pre–P wave. CR unipolar signals in orange; CS unipolar signals in light blue; body surface leads II, V1, V6 in white. LSPV = left superior pulmonary vein; RIPV = right inferior pulmonary vein; RSPV = right superior pulmonary vein; MV = mitral valve; R.PA = right posterior anterior.
Figure 3
Figure 3
A–F: Series of images visualizing the focal activation of our tachycardia source via single-position mapping. Origin at the anterior aspect of left atrial appendage (LAA), same area of interest localized while mapping premature atrial contractions (PACs). Secondary firing at source of PAC within the single P-wave morphology used to map. LSPV = left superior pulmonary vein; RIPV = right inferior pulmonary vein; RSPV = right superior pulmonary vein; MV = mitral valve; R.PA = right posterior anterior.
See this image and copyright information in PMC

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References

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