His bundle extrasystoles revisited: the great electrocardiographic masquerader.
Pacing Clin Electrophysiol
; 34(6): e56-9, 2011 Jun.
Article
en En
| MEDLINE
| ID: mdl-20487363
ABSTRACT
A 74-year-old man with past history of near syncope presented with frequent periods of second-degree atrioventricular block (2° AVB). An electrophysiological study revealed prolonged atrial-His and His-ventricular (HV) intervals and frequent His bundle (H) extrasystoles. The latter manifested in the surface electrocardiogram as premature atrial, junctional, or ventricular beats, as well as 2° AVB that mimicked Wenckebach or Mobitz II block. Procainamide markedly suppressed H extrasystole. However, because of the presence of prolonged HV interval and history of presyncope, a permanent pacemaker was inserted. The case illustrates the varied manifestation of H extrasystole and presents guidelines for management.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fascículo Atrioventricular
/
Complejos Prematuros Ventriculares
/
Electrocardiografía
Tipo de estudio:
Diagnostic_studies
Límite:
Aged
/
Humans
/
Male
Idioma:
En
Revista:
Pacing Clin Electrophysiol
Año:
2011
Tipo del documento:
Article
País de afiliación:
Estados Unidos