Assessment of spontaneous baroreflex sensitivity in neonates
نویسندگان
چکیده
منابع مشابه
Assessment of spontaneous baroreflex sensitivity in neonates.
AIMS To determine whether it is possible to assess baroreflex sensitivity in neonates by studying only spontaneous variation in systolic blood pressure and heart rate. METHODS ECG and non-invasive blood pressure signals were continuously studied in 14 preterm neonates (term 29-32 weeks) and five term neonates (term 40-41 weeks). Non-invasive blood pressure measures were obtained using a Finap...
متن کاملSpontaneous baroreflex sensitivity in (pre)adolescents.
OBJECTIVE To present normal spontaneous baroreflex sensitivity (BRS) values and investigate the influence of posture, sex, age, pubertal stage, body mass index (BMI), and physical activity level on BRS in (pre)adolescents. BRS is a sensitive measure of both sympathetic and parasympathetic cardiovascular regulation that may help detect early subclinical autonomic dysfunction. DESIGN A cross-se...
متن کاملRelationship between spontaneous sympathetic baroreflex sensitivity and cardiac baroreflex sensitivity in healthy young individuals.
Low baroreflex sensitivity (BRS) is associated with elevated cardiovascular risk. However, the evidence is based primarily on measurements of cardiac BRS. It cannot be assumed that cardiac or sympathetic BRS alone represent a true reflection of baroreflex control of blood pressure. The aim of this study was to examine the relationship between spontaneous sympathetic and cardiac BRS in healthy, ...
متن کاملDeterminants of spontaneous baroreflex sensitivity in a healthy working population.
Baroreflex sensitivity (BRS) by the spontaneous sequence technique has been widely used as a cardiac autonomic index for a variety of pathological conditions. However, little information is available on determinants of the variability of spontaneous BRS and on age-related reference values of this measurement in a healthy population. We evaluated BRS as the slope of spontaneous changes in systol...
متن کاملBaroreflex sensitivity during the development of spontaneous hypertension in rats.
1. Baroreflex sensitivity was studied in relation to the development of spontaneous hypertension in rats (SH rats), with normotensive Wistar-Kyoto (WKY) rats as controls. Conscious, freely moving animals were studied at different times, ranging from 4 to 20 weeks after birth. 2. The youngest SH rats (4-6 weeks; n = 10) already had significantly (P less than 0.01) higher mean arterial blood pres...
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ژورنال
عنوان ژورنال: Archives of Disease in Childhood - Fetal and Neonatal Edition
سال: 1997
ISSN: 1359-2998,1468-2052
DOI: 10.1136/fn.76.2.f108