Rate‐dependent and unidirectional conduction block between the left pulmonary vein and left atrium after catheter ablation for atrial fibrillation
| Autor: | Shohei Terada, Fumiko Nakazeki, Shota Osaki, Naoaki Onishi, Nobuya Higashitani, Sayaka Saijo, Kazuaki Kaitani, Maki Oi, Mitsunori Miho, Shinnosuke Nomura, Naofumi Oyamada, Toshikazu Jinnai, Takayasu Kobayashi, Marie Okabayashi, Katsutoshi Horii, Hirooki Higami |
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| Rok vydání: | 2020 |
| Předmět: |
lcsh:Diseases of the circulatory (Cardiovascular) system
medicine.medical_specialty Superior pulmonary vein unidirectional conduction medicine.medical_treatment Left atrium Case Report Catheter ablation Case Reports Pulmonary vein Internal medicine catheter ablation medicine atrial fibrillation pulmonary vein isolation business.industry Rate dependent Atrial fibrillation Ablation medicine.disease medicine.anatomical_structure lcsh:RC666-701 rate‐dependent conduction cardiovascular system Cardiology Cardiology and Cardiovascular Medicine business Left Pulmonary Vein |
| Zdroj: | Journal of Arrhythmia Journal of Arrhythmia, Vol 36, Iss 6, Pp 1096-1099 (2020) |
| ISSN: | 1883-2148 1880-4276 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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