Open AccessRate‐dependent and unidirectional conduction block between the left pulmonary vein and left atrium after catheter ablation for atrial fibrillation
Author(s) -
Oi Maki,
Nomura Shinnosuke,
Miho Mitsunori,
Kobayashi Takayasu,
Okabayashi Marie,
Higami Hirooki,
Onishi Naoaki,
Higashitani Nobuya,
Saijo Sayaka,
Nakazeki Fumiko,
Oyamada Naofumi,
Jinnai Toshikazu,
Terada Shohei,
Osaki Shota,
Horii Katsutoshi,
Kaitani Kazuaki
Publication year - 2020
Publication title -
journal of arrhythmia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 21
eISSN - 1883-2148
pISSN - 1880-4276
DOI - 10.1002/joa3.12425
Subject(s) - pulmonary vein , medicine , cardiology , ablation , atrial fibrillation , left atrium , catheter ablation , catheter , left pulmonary vein , surgery
A 77‐year‐old woman with symptomatic paroxysmal atrial fibrillation (PAF) underwent pulmonary vein isolation (PVI), but subsequently experienced recurrence. In the second session, unidirectional left atrium (LA)‐left superior pulmonary vein (LSPV) conduction was revealed to exist at the carina of the LSPV. Left pulmonary vein (LPV) pacing performed in a cycle between 300 and 260 ms revealed rate‐dependent pulmonary vein (PV)‐LA conduction, and the location was estimated to be in the roof of the LSPV. PV isolation was achieved after ablation of two gaps. Consideration of the presence of rate‐dependent gaps may be useful to confirm bidirectional block lines after ablation.