Bronchomotor effects of certain barbiturates with vagal stimulation
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منابع مشابه
Phasic effects of repetitive vagal stimulation on atrial contraction.
The vagus nerves of anesthetized dogs were stimulated once each cardiac cycle with a brief burst of pulses, and the timing of the stimulus bursts was changed by a fixed increment on successive cardiac cycles. The effects of such vagal stimulation on atrial contraction depended on the number of pulses per stimulus burst, on the interval between pulses within the burst, and on the timing of the s...
متن کاملVagal Stimulation in Dogs
We determined the effects of changing the spatial dispersion of acetylcholine release on the phase-dependent chronotropic responses to vagal stimulation in anesthetized dogs. We stimulated the vagus nerves with one brief burst of electrical pulses each cardiac cycle, and we changed the timing of the stimulus by a small, constant amount each cardiac cycle to scan the entire cycle. To vary the he...
متن کاملVagal nerve stimulation activates vagal afferent fibers that reduce cardiac efferent parasympathetic effects.
Vagal nerve stimulation (VNS) has been shown to have antiarrhythmic effects, but many of these benefits were demonstrated in the setting of vagal nerve decentralization. The purpose of this study was to evaluate the role of afferent fiber activation during VNS on efferent control of cardiac hemodynamic and electrophysiological parameters. In 37 pigs a 56-electrode sock was placed over the ventr...
متن کاملEffect of vagal stimulation in acute asthma
Introduction American lung association report,there were 1.8 million emergency department visits and 3,816 deaths per year attributable to asthma [1]. according to (GINA2012) the role of complementary and alternative medicine in adult asthma treatment are limited because these approaches have been insufficiently researched and their effect are largely unproven [2]. The parasympathetic nervous s...
متن کاملVagal Stimulation and Prevention of Sudden Death
a chronically implantable device to be placed around the cervical right vagus. An anterior myocardial infarction was produced in 161 dogs; 1 month later an exercise stress test was performed on the 105 survivors. Toward the end of the test the circumflex coronary artery was occluded for 2 minutes. Fifty-nine (56%) dogs developed ventricular fibrillation and, before this test was repeated, were ...
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 1958
ISSN: 0003-2409,1365-2044
DOI: 10.1111/j.1365-2044.1958.tb08053.x