Vagus stimulation effects during various doses of fluid infusion in dogs
Suresh, T.P.; Sharma, K.N.
Indian Journal of Physiology and Pharmacology 23(1): 31-34
1979
ISSN/ISBN: 0019-5499 PMID: 437871 Document Number: 139201
Stimulation of caudal and cranial ends of vagi in vagotomized chloralose-urethane anesthetized dogs with 7.5 V, 30 cps pulses of 2 ms width after 0, 25, 50, 75 and 100 ml/kg body wt infusion dose of Ringer-Locke solution caused well-known effects on heart rate, BP , amplitude of peripheral blood pressure waves, amplitude and frequency of respiration and amplitude of ECG waves. The vagal stimulation effects did not appear to be related to volume of fluid infused into circulation except that caudal end stimulation effect on QRS amplitude was prominent during higher infusion doses while its effect on amplitude of peripheral blood pressure waves and respiration was prominent during lower infusion doses.