2000
DOI: 10.1007/bf03019482
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Acute changes in bladder volume produce minimal cardio-respiratory responses in lightly anesthetised humans

Abstract: Purpose: To examine whether changes in bladder volume elicit reflex cardiovascular and respiratory responses in humans under general anesthesia with sevoflurane and nitrous oxide.Methods: Fourteen patients free of autonomic disorders were anesthetized with sevoflurane 0.5% and nitrous oxide 60% in oxygen that were approximately equivalent to 0.9 MAC. Warmed saline (6 ml·kg -1 , 37°C) was instilled into the pre-emptied urinary bladder, and then the bladder was kept distended for five minutes. Following the dist… Show more

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Cited by 3 publications
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“…Micturition syncope is common in patients with MSA, and this is presumed to be a result of abdominal straining due to dysuria in MSA patients and general autonomic insufficiency that is estimated to be abnormal in a dominant parasympathetic state. In addition, Ishikawa et al [13] found that, in a study of patients who did not have neurological and urological disorders, a foley catheter was inserted into the bladder, and the bladder was filled with saline. When the infused saline was drained suddenly, decreases in mean BP and HR was minimal under light general anesthesia without inhibiting autonomic response in the supine position.…”
Section: Discussionmentioning
confidence: 99%
“…Micturition syncope is common in patients with MSA, and this is presumed to be a result of abdominal straining due to dysuria in MSA patients and general autonomic insufficiency that is estimated to be abnormal in a dominant parasympathetic state. In addition, Ishikawa et al [13] found that, in a study of patients who did not have neurological and urological disorders, a foley catheter was inserted into the bladder, and the bladder was filled with saline. When the infused saline was drained suddenly, decreases in mean BP and HR was minimal under light general anesthesia without inhibiting autonomic response in the supine position.…”
Section: Discussionmentioning
confidence: 99%