Další formáty:
BibTeX
LaTeX
RIS
@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.
|