Arterial baroreflex function in humans anaesthetized with sevoflurane
نویسندگان
چکیده
منابع مشابه
Arterial baroreflex function in humans anaesthetized with sevoflurane.
Volatile anaesthetic agents attenuate arterial baroreflex function, while noxious stimuli may modify baroreflex-induced circulatory responses during anaesthesia. We have examined baroreflex control of heart rate during the entire course of sevoflurane anaesthesia in adult patients undergoing surgical procedures. Baroreflex sensitivity was assessed in nine healthy patients undergoing general ana...
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Cardiovascular variability reflects autonomic regulation of blood pressure (BP) and heart rate (HR). However, systolic BP (SBP) variability also may be induced by fluctuations in stroke volume through left ventricular end-diastolic pressure (LVEDP) variability via dynamic ventricular-arterial coupling during respiration. We hypothesized that dynamic ventricular-arterial coupling is modulated by...
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PURPOSE Neurocardiogenic syncope (formerly vasovagal) accounts for large numbers of falls in older adults and the mechanisms are poorly understood. This study examined the differences in baseline arterial baroreflex function in older adults with and without a neruocardiovascular response to orthostatic stress. METHODS Subjects were divided into two groups based on the presence (TT+ group) or ...
متن کاملCerebrovascular carbon dioxide reactivity in children anaesthetized with sevoflurane.
BACKGROUND To determine the effects of sevoflurane on cerebrovascular carbon dioxide reactivity (CCO2R), middle cerebral artery blood flow velocity (CBFV) was measured at different levels of PE'CO2 by transcranial Doppler sonography in 16 ASA I or II children, aged 18 months to 7 yr undergoing elective urological surgery. METHODS Anaesthesia comprised 1.0 MAC sevoflurane and air in 30% oxygen...
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BACKGROUND Control of renal hemodynamics by the arterial baroreflex has never been proved in humans. Apart from the physiological viewpoint, this issue is relevant because altered baroreflex function has been implicated in the pathogenesis of human hypertension. METHODS AND RESULTS Renal function studies were performed in seated healthy volunteers (n = 12; age range, 20 to 34 years) during su...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1999
ISSN: 0007-0912
DOI: 10.1093/bja/82.3.350