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Titolo:
CRITICAL-APPRAISAL OF INDEXES FOR THE ASSESSMENT OF BAROREFLEX SENSITIVITY
Autore:
DIRIENZO M; CASTIGLIONI P; MANCIA G; PARATI G; PEDOTTI A;
Indirizzi:
FDN PRO JUVENTUTE,CTR BIOINGN,LARC,VIA GOZZADINI 7 I-20148 MILAN ITALY UNIV MILAN MILAN ITALY OSPED SAN GERARDO,CATTEDRE MED INTERNE MILAN ITALY IRCCS,OSPED SAN LUCA,CTR AUXOL ITALIANO MILAN ITALY
Titolo Testata:
Methods of information in medicine
fascicolo: 4-5, volume: 36, anno: 1997,
pagine: 246 - 249
SICI:
0026-1270(1997)36:4-5<246:COIFTA>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLOOD-PRESSURE; HEART-RATE; VARIABILITY; REFLEX;
Keywords:
BARORECEPTOR SENSITIVITY; ARTERIAL BLOOD PRESSURE; HEART RATE VARIABILITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
11
Recensione:
Indirizzi per estratti:
Citazione:
M. Dirienzo et al., "CRITICAL-APPRAISAL OF INDEXES FOR THE ASSESSMENT OF BAROREFLEX SENSITIVITY", Methods of information in medicine, 36(4-5), 1997, pp. 246-249

Abstract

The sequence technique and the spectral estimation of the alpha coefficient are currently employed for the assessment of ''spontaneous'' baroreflex sensitivity (BRS). The comparison of performance and effectiveness of these techniques is obtained by the analysis of systolic blood pressure (SEP) and pulse interval (PI) tracings recorded in conscious cats before and after baroreceptor denervation. Results indicate that (1) the average BRS estimates obtained by the sequence technique andby the alpha coefficient at the respiratory frequency are similar, (2) the alpha coefficients computed at the respiratory frequency tend tobe higher than alpha coefficients estimated at 0.1 Hz, and (3) in spite of what is traditionally claimed, the PI-SEP coherence does not seem to represent a reliable parameter to enhance the specificity of the spectral estimate, because coherence values often remain above the 0.5threshold also after baroreceptor denervation.

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Documento generato il 29/03/20 alle ore 18:21:57