Effect of xamoterol in a patient with idiopathic autonomic failure.
We report the effect of xamoterol on autonomic, humoral and haemodynamic function in a patient with idiopathic autonomic neuropathy. Xamoterol produced marked symptomatic improvement, slightly increased heart rates in the sitting, supine and upright tilt positions and higher blood pressures while seated and on recovery from upright tilt. There were, however, no differences in blood pressure responses following a meal or during head-up tilt. We suggest that before ascribing symptomatic benefit to xamoterol in this condition, objective haemodynamic improvement should be recorded. Further studies of treatment in idiopathic autonomic failure require to be placebo controlled.
Elizabeth
J
J
University Department of Geriatric Medicine, University of Liverpool, U.K.
Solomon
L R
LR
Lye
M
M
D000318:Adrenergic beta-Agonists / Q000627:therapeutic use*; D001342:Autonomic Nervous System Diseases / Q000188:drug therapy* / Q000503:physiopathology; D001794:Blood Pressure / Q000187:drug effects; D004435:Eating; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D008875:Middle Aged; D011187:Posture; D011412:Propanolamines / Q000627:therapeutic use*; D017307:Xamoterol
D000318:Adrenergic beta-Agonists; D011412:Propanolamines; D017307:Xamoterol