| Autor: |
Julián Andrés, Olmedo, Mauricio Sebastián, Abello, Bryan, Cannon, David, Doiny, Javier, Bonacina, José Manuel, Moltedo |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Archivos de cardiologia de Mexico. 88(3) |
| ISSN: |
1665-1731 |
| Popis: |
Fasciculo-ventricular (FV) accessory pathways (AP's) and right anteroseptal (RAS) AP's share similar anatomic locations and electrocardiographic characteristics. The objective of this article is to compare these features in children.All patients with manifest pre-excitation who underwent an electrophysiological study were included. Fasciculo-ventricular AP's were defined by the presence of an HV interval≤32ms and a prolongation of the AH without changes in the HV interval, or the level of pre-excitation during atrial pacing. Three independent and blind observers analysed the ECG's in both groups.Out of 288 patients, 15 (5.2%) had FV AP's and 14 (4.9%) right AS AP's. The PR interval was longer in FV AP's than in RAS (113±21 vs 86±13ms respectively; P.001) and the QRS was narrower (95±12 vs 137±24ms respectively; P.001). The ECG in patients with FV AP's showed a rapid low amplitude deflection at the begining of the QRS in 13 out of 15 patients (87%) and in 2 (14%) the RAS AP group (P=.003).The PR interval was longer and the QRS complex was narrower in patients with FV AP's. The presence of a rapid low amplitude deflection at the beginning of the QRS complex would allow to differentiate them from RAS AP's non-invasively. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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