Titlebook: Cardiac Preexcitation Syndromes; Origins, Evaluation, David G. Benditt (Associate Professor of Medicine) Book 1986 Martinus Nijhoff Publish

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Eberhard Fetz,Keisuke Toyama,Wade SmithV) nodal conduction properties [1]. Although EAVC has been variously defined (see Benditt et al. this volume), it is used in this chapter to indicate the presence of 1:1 AV conduction at cycle lengths of 300 ms or less.

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Eberhard Fetz,Keisuke Toyama,Wade Smithtion. The simultaneous occurrence of preexcitation syndromes with tachyarrhythmias and certain types of congenital heart disease — for example, Ebstein’s malformation — is not unexpected, considering the developmental abnormalities and anatomic substrates involved. Each separate problem may affect t

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Ventricular Preexcitation: Historical Overview The years 1903 to 1912 were particularly banner ones with many arrhythmias being defined, bundle branch function explored, and heart block explained. Indeed the first electrocardiographic abnormality attracting the attention of Einthoven [1] was a bundle branch block (in 1894), recorded by capillar

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Anatomic Basis for Preexcitation Syndromesnode is a region in which impulse conduction is normally delayed. Although the mechanism for the this delay is not agreed upon, it is an important feature of the AV node which helps to maintain an orderly sequence of atrial and ventricular contraction. However, there are several potential routes, by

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Electrocardiographic Aspects of the Preexcitation Syndromesch results in early excitation of the ventricles and can result in deformation of the QRS complex. This unusual excitatory sequence coined “anomalous atrioventricular excitation” [1] or “preexcitation” [2] interested early electrocardiographers and was reported in isolated cases or small series by C

obeisance

First Harmonic Fourier (Phase) Analysis of Blood Pool Scintigrams for the Analysis of Cardiac Conducent among these methods and widely used owing to their important clinical impact are cardiac scintigraphic methods [1–3]. Here, a minute intravenous dose of a radiopharmaceutical permits image characterization and often, quantification of some quality of the cardiac whole. The radiation dose is smal

ambivalence

The Spectrum of Tachyarrhythmias in Preexcitation Syndromes in severity from mild to life-threatening. Therefore, many patients with preexcitation syndromes and tachyarrhythmias will require treatment. The most appropriate form of therapy for these patients will depend upon the particular mechanism of the tachyarrhythmia. Although invasive electrophysiologi