| Autor: |
Makoto Noda, MD, Fumio Suzuki, MD, Kazunori Sezaki, MD, Tetsuya Katsuno, MD, Michio Usui, MD, Mitsuaki Isobe, MD |
| Jazyk: |
angličtina |
| Rok vydání: |
2005 |
| Předmět: |
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| Zdroj: |
Journal of Arrhythmia, Vol 21, Iss 3, Pp 422-426 (2005) |
| Druh dokumentu: |
article |
| ISSN: |
1880-4276 |
| DOI: |
10.1016/S1880-4276(05)80030-4 |
| Popis: |
We studied the modes of initiation of two types of atria] reentrant tachycardias (i.e., microreentry isthmus tachycardia and counterclockwise atrial flutter) in a 39-year-old male with typical atrial flutter. Rapid atrial pacing from proximal coronary sinus at a cycle length of 220 msec initiated micro-reentry isthmus tachycardia (non-sustained), while rapid atrial pacing at a cycle length of 210 msec initiated sustained atrial flutter circulating counterclockwise around the tricuspid annulus. It was suggested that initiation of the counterclockwise atrial flutter was associated with a pacing-induced conduction block in the entire width of the isthmus, whereas initiation of the micro-reentry isthmus tachycardia was associated with a pacing-induced conduction block in a limited segment of the isthmus (i.e., partial isthmus block). |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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