TY - JOUR
T1 - Modulation of ventricular parasystole by extraneous depolarizations
AU - Castellanos, Agustin
AU - Melgarejo, Enrique
AU - Dubois, Renato
AU - Luceri, Richard M.
PY - 1984/1/1
Y1 - 1984/1/1
N2 - The ectopic cycle length of a ventricular parasystole was influenced in a predictable fashion (modulated) by nonparasystolic beats. Although the interectopic intervals were not multiples of the ectopic cycle length (as in “classical” parasystole), the diagnosis could be established because: a) nonparasystolic beats falling during the first half of the cycle produced an 8–12% shortening of the ectopic cycle length; and b) nonparasystolic beats occurring during the second half of the cycle decreased the ectopic cycle length by 9–14%. The events occurring in this case are further proof that the classical criteria for the diagnosis of parasystole have to be reevaluated.
AB - The ectopic cycle length of a ventricular parasystole was influenced in a predictable fashion (modulated) by nonparasystolic beats. Although the interectopic intervals were not multiples of the ectopic cycle length (as in “classical” parasystole), the diagnosis could be established because: a) nonparasystolic beats falling during the first half of the cycle produced an 8–12% shortening of the ectopic cycle length; and b) nonparasystolic beats occurring during the second half of the cycle decreased the ectopic cycle length by 9–14%. The events occurring in this case are further proof that the classical criteria for the diagnosis of parasystole have to be reevaluated.
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U2 - 10.1016/S0022-0736(84)81096-1
DO - 10.1016/S0022-0736(84)81096-1
M3 - Article
C2 - 6736844
AN - SCOPUS:0021326793
VL - 17
SP - 195
EP - 198
JO - Journal of Electrocardiology
JF - Journal of Electrocardiology
SN - 0022-0736
IS - 2
ER -