A document by Nobuhiro Takasugi. Click on the document to view its contents.

Conduction variability at the mitral isthmus lesion; What is the mechanism?

A Wenckebach periodicity at the mitral isthmus lesion has rarely been reported. We described a case presenting conduction recovery with Wenckebach periodicity at the mitral isthmus lesion after achieving the posterior mitral isthmus block. These findings demonstrate an early reconnection of mitral isthmus lesion, and an arrhythmogenic substrate that can lead to development of reentrant tachycardia, that is, peri-mitral atrial flutter.

Transient Atrial-His Block during Wide QRS-Complex Tachycardia with 1:1 Ventriculoatrial Relationship: What is the Diagnosis?

Near-field Signals Detected by a Standard Bipolar Electrode without Detection of Corresponding Signals by Microelectrode: What is the Mechanism?Short title ; Near-filed Microelectrode signalTakashi Nakashima, MD*, Cyril Goujeau, MD, Yosuke Nakatani, MD,Ghassen Cheniti, MD, Pierre Jaïs, MD, Frédéric Sacher, MDAll authors have no conflicts of interest to disclose.Department of Cardiac Electrophysiology, Service de Rhythmologie, Hôpital Cardiologique du Haut-Lévêque (Centre Hospitalier Universtaire de Bordeaux)Avenue de Magellan, 33604, Bordeaux-Pessac, FranceCorrespondence to Takashi Nakashima, MDDepartment of Cardiac Electrophysiology, Service de Rhythmologie, Hôpital Cardiologique du Haut-Lévêque (Centre Hospitalier Universtaire de Bordeaux)Avenue de Magellan, 33604, Bordeaux-Pessac, FranceTel: +33 5 57 65 68 63 19, Fax: +33 5 57 65 68 96 20, Email; takashin727jw@yahoo.co.jp, ORCID: 0000-0002-8538-9259Key words: Ablation; Electrogram analysis; Microelectrode; Ventricular tachycardia