Inhalation anaesthetics increase heart rate bydecreasing cardiac vagal activity indogs
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منابع مشابه
Inhalation anaesthetics increase heart rate by decreasing cardiac vagal activity in dogs.
Inhalation anaesthetics decrease heart rate in isolated hearts but mostly increase heart rate in the intact organism, although most inhibit sympathetic drive. Differences in the degree of increase in heart rate between agents may be related to differences in their vagolytic action. To test this hypothesis, we studied the effects of halothane (H), isoflurane (I), enflurane (E), sevoflurane (S) a...
متن کاملEffects of repetitive bursts of vagal activity on heart rate.
The effect of the timing of discrete bursts of efferent vagal impulses on heart rate was determined in anesthetized dogs. Two modes of stimulation were employed. In the first mode, one stimulus burst was delivered per cardiac cycle. As the time from the beginning of the P wave to the vagal stimulus (P-St interval) was progressively increased, there was first a progressive lengthening of the car...
متن کاملShort-term Parameters of Heart Rate Variability During Balanced Anaesthesia with Administration of Two Different Inhalation Anaesthetics
INTRODUCTION Heart rate variability which denotes variations of the length of consecutive heart cycles has been suggested to reflect the modulation of heart rate by autonomic nervous system. METHODS Sixty four patients of ASA I and ASA II status scheduled for elective abdominal surgical procedures were randomly allocated to group 1 and group 2. Premedication and induction of anaesthesia were ...
متن کاملCLINICAL PRACTICE Inhalation anaesthetics and climate change†
M. P. Sulbaek Andersen 1*, S. P. Sander 1, O. J. Nielsen 2, D. S. Wagner 3, T. J. Sanford Jr4 and T. J. Wallington 5 1 Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Mail Stop 183-901, Pasadena, CA 91109, USA 2 Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark 3 Department of Clinical Sciences, College of P...
متن کاملThe Pharmacokinetics of Inhalation Anaesthetics: Clinical Applications.
The intensity and duration of drug effects, including those of anaesthetic agents, may be predicted if the site of action, potency, and methods of uptake, distribution and elimination of these substances in the body are understood. Reliable information on the first two points may be generally available and provided from animal experimentation or clinical study. The methods by which the patient ...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 2001
ISSN: 0007-0912
DOI: 10.1093/bja/87.5.748