Supresión, captura y modulación de la parasistolia ventricular.

Translated title of the contribution: Suppression, capture and modulation of ventricular parasystole

Agustin Castellanos, F. Moleiro, I. Mendoza

Research output: Contribution to journalArticle

Abstract

Few clinical studies have dealth with annihilation, entrainment and modulation of ventricular parasystolic rhythm. Parasystolic modulation was diagnosed in 9 nonmedicated patients because single, nonparasystolic beats falling during the initial 59% of the cycle prolonged the parasystolic cycle length (by 12 to 37.5%), whereas those that fell later in the cycle shortened it (by 9 to 25%). Plotting this prolongation or shortening as a function of the temporal position of the nonparasystolic beats in the cycle, yielded biphasic response curves. In two patients, episodes of concealed one-to-one entrainment were initiated by late nonparasystolic (sinus) beats and, later on, terminated by early ventricular extrasystoles. In 2 other patients, (and in 2 separate occasions) nonparasystolic beats, falling in part of the cycle located in between those of maximal delay and acceleration, produced pacemaker annihilation (cessation of automatic activity for the remaining monitoring time). Parasystolic annihilation and concealed entrainment may be one of the causes that can explain the large, spontaneous, day-to-day variability in the incidence of ectopic ventricular beats reported in Holter recordings.

Original languageSpanish
Pages (from-to)15-23
Number of pages9
JournalArchivos del Instituto de Cardiologia de Mexico
Volume55
Issue number1
StatePublished - Jan 1985
Externally publishedYes

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Parasystole
Accidental Falls
Ventricular Premature Complexes
Incidence

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Supresión, captura y modulación de la parasistolia ventricular. / Castellanos, Agustin; Moleiro, F.; Mendoza, I.

In: Archivos del Instituto de Cardiologia de Mexico, Vol. 55, No. 1, 01.1985, p. 15-23.

Research output: Contribution to journalArticle

Castellanos, A, Moleiro, F & Mendoza, I 1985, 'Supresión, captura y modulación de la parasistolia ventricular.', Archivos del Instituto de Cardiologia de Mexico, vol. 55, no. 1, pp. 15-23.
Castellanos, Agustin ; Moleiro, F. ; Mendoza, I. / Supresión, captura y modulación de la parasistolia ventricular. In: Archivos del Instituto de Cardiologia de Mexico. 1985 ; Vol. 55, No. 1. pp. 15-23.
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