His Bundle Electrograms in Two Cases of Wolff-Parkinson-White (Pre-excitation) Syndrome

Castellanos, Agustín; Chapunoff, Eduardo; Castillo, Cesar A.; Maytin, Orlando; Lemberg, L

doi:10.1161/01.cir.41.3.399

Cited by 103 publications

(11 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…HIS bundle studies in conjunction with atrial pacing have lead to further elucidation of the mechanism of the syndrome and its associated tachycardias. Results of these studies have supported much of the previous theoretical work and have allowed the delineation of the electrophysiological properties of the abnormal conduction pathways (4)(5)(6)(7). It is the purpose of this communication to review the information on the physiology of WPW derived from the HBE, to demonstrate HIS bundle electrographic findings in patients with WPW and to discuss the value of HIS bundle electrogram in confirming the diagnosis of the syndrome.…”

supporting

confidence: 54%

The wolff‐Parkinson‐White syndrome: The value of the HIS bundle electrogram

Haft

Gomes

1976

Cathet. Cardiovasc. Diagn.

View full text Add to dashboard Cite

show abstract

supporting

confidence: 54%

The wolff‐Parkinson‐White syndrome: The value of the HIS bundle electrogram

Haft

Gomes

1976

Cathet. Cardiovasc. Diagn.

View full text Add to dashboard Cite

show abstract

“…'s A graph relating V1-V2 and A,-A, intervals from one of these patients is given on figure 7C. As shown in figure 5 (which is from the same patient as fig. 7C), a critical delay in Relation between V1-V. patienits who showed only VA conduction via the His-AV nodal pathway, this means that eight of the 36 patienits studied did not show VA conduction by way of the accessory pathway during ventricular pacing.…”

Section: Methodsmentioning

confidence: 98%

Patterns of Ventriculo-Atrial Conduction in the Wolff-Parkinson-White Syndrome

1974

View full text Add to dashboard Cite

SUMMARYIn 36 patients with the Wolff-Parkinson-White syndrome, ventriculo-atrial (VA) conduction was studied using the single test stimulus method. In 22 patients no significant change in VA conduction time occurred following test stimuli with increasing prematurity suggesting exclusive VA conduction by way of the accessory pathway, an accessory pathway with a shorter refractory period than the His-AV node pathway, or identical refractory periods in both pathways. In 14 patients showing this VA conduction pattern tachyeardias could be initiated by a single early ventricular premature beat. This finding lends credence to the hypothesis that the accessory pathway is an essential link in the tachycardia circuit. In two of the five patients showing exclusive VA conduction over the His-AV node pathway single re-entrant beats with antegrade conduction over the accessory pathway could be elicited by appropriately timed ventricular premature beats. In one patient showing this pattern a sustained tachycardia with AV conduction over the accessory pathway could be initiated. A total of eight patients did not show VA conduction over the accessory pathway.

show abstract

“…On atrial pacing, the S-H interval prolonged normally, the duration of the P-wave, QRS inter val and P-J interval increased, suggesting that an accessory pathway that bypasses the A-V node and goes directly to the ventricle is present, i.e. a bundle of Kent [4,16,19] and confirms the concept that the WPW. QRS is a fusion beat [2,10,18,20].…”

Section: Discussionmentioning

confidence: 75%

His Bundle Electrocardiography in the Wolff-Parkinson-Syndrome

Gomes¹,

Haft²

1977

Cardiology

View full text Add to dashboard Cite

His bundle electrographic studies with atrial pacing in 2 of 8 patients with the Wolff-Parkinson-White (WPW) syndrome demonstrated evidence for the combination of a James tract and Mahaim fibers. During normal sinus rhythm these 2 patients had P-H intervals of 65 and 75 msec and H-Q intervals of 15 and 35 msec, respectively. On atrial pacing, the P-H intervals showed a small increase with the H-Q intervals remaining constant. The QRS duration, δ-wave duration and P-J intervals remained relatively constant. These observations strikingly contrasted with the findings typical of Kent-type conduction in the remaining 6 patients in whom during sinus rhythm, the His depolarization occurred simultaneously with the onset of the (δ -wave on the surface ECG. During atrial pacing (ranges 85–174/min), in these 6 patients, there was a progressive increase in the duration of the δ -wave, gradual increase in the P-H and Q-H intervals, and an increase in the QRS duration. 5 of these 6 patients showed a progressive increase in the P-J intervals. These observations suggest a practical method for determining in the individual patient whether anomalous conduction is occurring via a Kent-type pathway or a combination of a James tract and Mahaim fibers arranged in series.

show abstract

His Bundle Electrograms in Two Cases of Wolff-Parkinson-White (Pre-excitation) Syndrome

Cited by 103 publications

References 15 publications

The wolff‐Parkinson‐White syndrome: The value of the HIS bundle electrogram

The wolff‐Parkinson‐White syndrome: The value of the HIS bundle electrogram

Patterns of Ventriculo-Atrial Conduction in the Wolff-Parkinson-White Syndrome

His Bundle Electrocardiography in the Wolff-Parkinson-Syndrome

Contact Info

Product

Resources

About