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@article{379911,
author = {Honzíková, Nataša and Fišer, Bohumil and Semrád, Bořivoj},
article_location = {Brno},
article_number = {1},
keywords = {baroreflex sensitivity; spectral analysis; myocardial infarction; ejection fraction; heart failure},
language = {eng},
issn = {0211-3395},
journal = {Scripta medica},
title = {Relationship between ejection fraction and baroreflex sensitivity in patients after myocardial infarction},
volume = {74},
year = {2001}
}
TY - JOUR
ID - 379911
AU - Honzíková, Nataša - Fišer, Bohumil - Semrád, Bořivoj
PY - 2001
TI - Relationship between ejection fraction and baroreflex sensitivity in patients after myocardial infarction
JF - Scripta medica
VL - 74
IS - 1
SP - 55
EP - 55
PB - Masaryk University in Brno
SN - 02113395
KW - baroreflex sensitivity
KW - spectral analysis
KW - myocardial infarction
KW - ejection fraction
KW - heart failure
N2 - The relationship between ejection fraction (EF) and baroreflex sensitivity (BRS in ms/mmHg and BRSf in Hz/mmHg) in 117 patients 7-14 dayes after myocardial infarction was studied. BRS and BRSf were determined by spectral analysis of pulse intervals and blood pressure fluctuation (Finapres, 3 min recording, breathing 0.33 Hz). At EF between 40-70% (n=92), BRS and BRSf remained constant (meanąSD: 5.5ą3.3 ms/mmHg, 0.0077ą0.00511 Hz/mmHg). At EF 30-40% (n=17), lower values of BRS and BRSf were observed (BRS: 58.1ą48.5%, BRSf: 67.5ą54.7% of the values at high EF). The difference between BRS and BRSf was significant (p<0.05). At EF 20-30% (n=8), BRS was 33.9ą23.6% and BRSf was 34.9ą21.3% of the values at high EF. The values of the PI-dependent BRS correspond to the baroreceptor sensitivity and to the activity of the autonomic nervs, which is altered at EF 30-40%. The PI-independent BRSf corresponds only to the baroreceptor sensitivity, which is decreased at very low EF.
ER -
HONZÍKOVÁ, Nataša, Bohumil FIŠER a Bořivoj SEMRÁD. Relationship between ejection fraction and baroreflex sensitivity in patients after myocardial infarction. \textit{Scripta medica}. Brno: Masaryk University in Brno, 2001, roč.~74, č.~1, s.~55-59. ISSN~0211-3395.
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