منابع مشابه
Retrograde pre-excitation. Comparison of antegrade and retrograde conduction intervals in man.
The purpose of this report was to compare antegrade (atrioventricular [A-V]) and retrograde (ventriculoatrial [V-A]) conduction times in 124 consecutive patients who exhibited bidirectional conduction during diagnostic studies where His bundle recordings were obtained. None of these patients had any evidence of antegrade pre-excitation. The mean age was 64 ± 13 (range 32-89 years). The QRS comp...
متن کاملBipolar catheter electrograms for study of retrograde atrial activation pattern in patients without pre-excitation syndromes.
The sequence of retrograde atrial activation of premature ventricular beats was studied in 12 patients without pre-excitation syndrome. Forward and retrograde AV nodal conduction times were within normal limits. The septal low right atrial (LRA2) deflection was inscribed 25 to 55 ms (ave: 37.9 ms) before the low left atrial (LLA2) electrogram and 35 to 75 ms (ave: 53.7 ms) ahead of the high rig...
متن کاملNot Your Usual Pre-Excitation.
1759 ECG CHALLENGE A 67-year-old man with a medical history of moderate to severe mitral regurgitation secondary to flail posterior mitral valve leaflet, hypertension, type II non–insulindependent diabetes mellitus, and paroxysmal atrial fibrillation was found to have the following ECG (Figure 1) after elective mitral valve repair. What abnormalities are present? Do you recommend further testin...
متن کاملClassification of ventricular pre-excitation. Vectorcardiographic study.
In a study of 45 cases of ventricular pre-excitation, 19 were classified as type A and 20 as type B according to Rosenbaum's criteria, which depend on the polarity of the major deflections in the right praecordial leads and not, as is commonly thought, on the direction of the delta vector. Six cases that could not be classified as type A or type B were termed intermediate. Vectorcardiograms wer...
متن کاملPre-excitation syndrome: ablating the pathway
Disappearance of a delta wave in a patient with pre-excitation is demonstrated following successful ablation.
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ژورنال
عنوان ژورنال: Circulation
سال: 1974
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.50.6.1129