Electrophysiologic characteristics of Ebstein's anomaly of the tricuspid valve.

Kastor, John A.; Goldreyer, Bruce N.; Josephson, Mark E.; Perloff, Joseph K.; Scharf, Daniel L.; Manchester, Joel H.; Shelburne, James C.; Hirshfeld, John W.

doi:10.1161/01.cir.52.6.987

Cited by 85 publications

(41 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…We believe the abnormalities of the AV node and His-Purkinje system seen in these patients account for this observation. 29 We have never seen definite true antidromic reciprocating tachycardia in a patient with Ebstein's anomaly. However, in one patient (No.…”

Section: Discussionmentioning

confidence: 77%

Preexcited reciprocating tachycardia in patients with Wolff-Parkinson-White syndrome: incidence and mechanisms.

Bardy

Packer²,

German

et al. 1984

Circulation

View full text Add to dashboard Cite

During the electrophysiologic study of 435 patients referred for evaluation of WolffParkinson-White syndrome, 42 (10%) had preexcited reciprocating tachycardia (defined as a macroreentrant tachycardia that used an accessory atrioventricular [AV] pathway for antegrade conduction).The ages of the patients ranged from 9 to 67 years (27 + 14). Thirty-three were male patients, nine female, and eight had Ebstein's anomaly. Preexcited reciprocating tachycardia cycle length was 220 to 430 msec (294 ± 42). Significant hemodynamic compromise in the laboratory directly related to preexcitated reciprocating tachycardia occurred in only one patient. However, in 10 patients a transformation to atrial fibrillation was seen after a spontaneously occurring premature atrial contraction. Only 17 of the 42 patients with preexcited reciprocating tachycardia during electrophysiologic study had the same tachycardia documented clinically. These 17 patients were more often younger with multiple accessory pathways and with no history of orthodromic reciprocating tachycardia when compared with 25 patients in whom preexcited reciprocating tachycardia could be induced only in the laboratory. Preexcited reciprocating tachycardia was induced in the laboratory in 22 of 374 (6%) patients with single accessory pathways and in 20 of 61 (33%) of those with multiple accessory pathways. In the 20 patients with multiple accessory pathways, the spectrum of reentrant circuits included fusion over two or more accessory pathways or fusion over both an accessory pathway and the AV node.

show abstract

Section: Discussionmentioning

confidence: 77%

Preexcited reciprocating tachycardia in patients with Wolff-Parkinson-White syndrome: incidence and mechanisms.

Bardy

Packer²,

German

et al. 1984

Circulation

View full text Add to dashboard Cite

show abstract

“…As the right ventricle is diminutive, lowamplitude QRS complexes are characteristically seen over right precordial leads. 58 Because of the atrialized portion of the right ventricle, the QRS complex typically exhibits right ventricular conduction delay of the right bundle-branch type that is atypical and multiphasic. 56 In unoperated patients, signal-averaged ECGs almost universally identify late potentials corresponding to delayed conduction across atrialized right ventricle.…”

Section: Ebstein's Anomalymentioning

confidence: 99%

Clinical Use of Electrocardiography in Adults With Congenital Heart Disease

Khairy

Marelli

2007

Circulation

View full text Add to dashboard Cite

“…19,20 In addition, the abnormal signal observed during endocardial mapping of the aRV was related to the bizarre configuration of the widened QRS complexes on surface ECG. 21,22 They also showed that the aRV was particularly irritable and, therefore, could serve as a substrate for ventricular fibrillation. 21,23 Indeed, in our study, patients in the fQRS group had significantly larger aRV area and more frequent ventricular arrhythmic complications compared with the non-fQRS group.…”

Section: Fqrs Complexes and Risk Of Ventricular Tachyarrhythmiasmentioning

confidence: 99%

“…21,22 They also showed that the aRV was particularly irritable and, therefore, could serve as a substrate for ventricular fibrillation. 21,23 Indeed, in our study, patients in the fQRS group had significantly larger aRV area and more frequent ventricular arrhythmic complications compared with the non-fQRS group. Moreover, the extent .…”

Section: Fqrs Complexes and Risk Of Ventricular Tachyarrhythmiasmentioning

confidence: 99%

Fragmented QRS Complex in Adult Patients With Ebstein Anomaly and Its Association With Arrhythmic Risk and the Severity of the Anomaly

Park

Chung

et al. 2013

Circ: Arrhythmia and Electrophysiology

View full text Add to dashboard Cite

Background-Fragmented QRS complex (fQRS) on 12-lead ECG, a marker of myocardial scar, is a predictor of arrhythmic events in patients with ischemic and nonischemic cardiomyopathy. We investigated whether the presence of fQRS is associated with the severity of the anomaly and with increased arrhythmic events in adult patients with Ebstein anomaly (EA). Methods and Results-In 51 consecutive adult patients with EA (median age, 37 years; 18 males), the severity index of EA calculated from echocardiographic data and clinical arrhythmic events were analyzed. The extent of fQRS in each patient was measured by counting the number of ECG leads showing fQRS. There were 35 (68.6%) patients with fQRS (fQRS group) and 16 (31.4%) patients without fQRS (non-fQRS group). fQRS was observed more frequently in the inferior (n=26) and precordial (n=25) leads versus the lateral leads (n=5). The patients in the fQRS group had a worse functional class, greater cardiothoracic ratios, more severe tricuspid regurgitation, larger atrialized right ventricular areas, higher EA severity scores, and more frequent arrhythmic events compared with those in the non-fQRS group. The atrialized right ventricular area showed a positive correlation with the fQRS extent (r=0.51; P<0.001). In multivariable Cox regression models, the presence of fQRS was independently associated with arrhythmic events (P=0.036). Conclusions-Fragmented

show abstract

Electrophysiologic characteristics of Ebstein's anomaly of the tricuspid valve.

Cited by 85 publications

References 23 publications

Preexcited reciprocating tachycardia in patients with Wolff-Parkinson-White syndrome: incidence and mechanisms.

Preexcited reciprocating tachycardia in patients with Wolff-Parkinson-White syndrome: incidence and mechanisms.

Clinical Use of Electrocardiography in Adults With Congenital Heart Disease

Fragmented QRS Complex in Adult Patients With Ebstein Anomaly and Its Association With Arrhythmic Risk and the Severity of the Anomaly

Contact Info

Product

Resources

About