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Intermittent Intraventricular Blocks

  • Chapter
Intraventricular Conduction Disturbances

Part of the book series: Developments in Cardiovascular Medicine ((DICM,volume 12))

Abstract

Intraventricular conduction disturbances (IVCD) in most cases are permanent. At times they persist for a variable period, generally secondary to acute affections and independent of cardiac rate, and then disappear. Such a type of IVCD is therefore defined as transient. The appearance and the disappearance of IVCD may also occur from one beat to another, usually in relation to changes in cardiac rate. In these cases the IVCD is defined as intermittent. If the aberrancy occurs during very early beats in relation to physiologic dishomogeneous refractoriness of the main intraventricular pathways it is defined as functional. Considering the longest duration of the His-Purkinje system (HPS) recovery time is approximately 400 msec [1, 2] (Figure 1), an IVCD which appears after longer cardiac cycles should be considered pathologic.

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  1. Electrophysiology Section, Division of Cardiology, Arcispedale S. Anna, Ferrara, Italy

    Paolo Alboni M.D. (Director)

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© 1981 Martinus Nijhoff Publishers, The Hague

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Alboni, P. (1981). Intermittent Intraventricular Blocks. In: Intraventricular Conduction Disturbances. Developments in Cardiovascular Medicine, vol 12. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-8287-1_10

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  • DOI: https://doi.org/10.1007/978-94-009-8287-1_10

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