HONZÍKOVÁ, Nataša, Bohumil FIŠER and Bořivoj SEMRÁD. Critical value of baroreflex sensitivity determined by spectral analysis in risk stratification after myocardial infarction. Pacing and Clinical Electrophysiology. Armonk, New York: Futura Publishing Company, Inc., 2000, vol. 23, No 11, p. 1965-1967. ISSN 0147-8389.
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Basic information
Original name Critical value of baroreflex sensitivity determined by spectral analysis in risk stratification after myocardial infarction.
Name in Czech Kritická hodnota citlivosti baroreflexu stanovená spektrální analýzou v rizikové stratifikaci po infarktu myokardu
Authors HONZÍKOVÁ, Nataša (203 Czech Republic, guarantor), Bohumil FIŠER (203 Czech Republic) and Bořivoj SEMRÁD (203 Czech Republic).
Edition Pacing and Clinical Electrophysiology, Armonk, New York, Futura Publishing Company, Inc. 2000, 0147-8389.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30105 Physiology
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.600
RIV identification code RIV/00216224:14110/00:00002637
Organization unit Faculty of Medicine
UT WoS 000165755900063
Keywords in English Baroreflex sensitivity; spectral analysis; myocardial infarction; cardiac death; critical value; risk stratification.
Tags baroreflex sensitivity, cardiac death, critical value, Myocardial infarction, risk stratification., spectral analysis
Changed by Changed by: prof. MUDr. Nataša Honzíková, CSc., učo 1700. Changed: 17/6/2009 14:29.
Abstract
The critical value of baroreflex sensitivity (BRS) was assessed by spectral analysis of spontaneous fluctuations in pulse intervals and blood pressure. Blood pressure was recorded noninvasively (3 min, controlled breathing 0.33 Hz) in 112 patients, 8-18 days after myocardial infarction (MI). Nine patients died during the first year after MI. BRS was determined as the gain between the spectrum of the variability of systolic blood pressure and the cross-spectrum between the variability of pulse intervals and systolic blood pressure at the frequency of 0.1 Hz. Sensitivity, specificity, and the positive predictive value were calculated in the range of 1-10 ms/mmHg in steps of 1 ms/mmHg. The value of BRS above which sensitivity no longer increases and specificity decreases was taken as the optimal value. The optimal critical value was 3 ms/mmHg.
Abstract (in Czech)
Kritická hodnota citlivosti baroreflexu (BR) byla stanovena spektrální analýzou kolísání tepových intervalů a krevního tlaku. Krevní tlak byl vyšetřen u 112 pacientů 8-18 dnů po infarktu myokardu. Devět pacientů zemřelo během prvního roku po IM. BRS bylo stanoveno spektrální metodou při frekvenci 0.0 Hz. Sensitivita, specificta a positviní prediktivní hodnota byly určeny v rozmezí 1-10 ms/mmHg v krocích po 1 ms/mmHg. Optimální kritická hodnota byla stanovena 3 ms/mmHg.
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