| Autor: |
Peters RW, Nussbaum S, Mailhot J, Lief LH, Paley HW |
| Jazyk: |
angličtina |
| Zdroj: |
Pacing and clinical electrophysiology : PACE [Pacing Clin Electrophysiol] 1984 Mar; Vol. 7 (2), pp. 248-51. |
| DOI: |
10.1111/j.1540-8159.1984.tb04893.x |
| Abstrakt: |
We describe a patient who underwent electrophysiologic study for evaluation of recurrent syncope. No abnormalities were found but high-grade A-V block proximal to the His bundle depolarization developed abruptly as the coronary sinus electrode catheter was being withdrawn. The A-V block disappeared gradually over a 12-hour period, progressing to type I second-degree A-V block, and then to first-degree A-V block (due to prolonged A-V nodal conduction), prior to resuming normal conduction. We postulate that A-V block was induced by direct contact between the electrode catheter and the A-V node or very proximal His bundle. Catheter-induced A-V block at this site has been described only rarely, possibly because of the relatively protected location and the configuration of the A-V node. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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