Influence of intrinsic sympathomimetic activity on respiratory function.
نویسندگان
چکیده
منابع مشابه
Influence of intrinsic sympathomimetic activity on respiratory function during chronic beta blockade: comparison of propranolol and pindolol.
The long term effect of beta blockers and the influence of intrinsic sympathomimetic activity on respiratory function were assessed in patients with chronic stable angina pectoris randomised to receive treatment with propranolol (n = 21) or pindolol (n = 19) for one year. Forced expiratory volume in one second (FEV1) had fallen by a mean of 240 ml after one year (p less than 0.001) in those tre...
متن کاملTopical beta-blockade with intrinsic sympathomimetic activity offers no advantage for the respiratory and cardiovascular function of elderly people.
Topical therapy with beta-antagonists, such as timolol, may cause unrecognized impairment of respiratory and cardiovascular function in elderly people. Beta-antagonists with intrinsic sympathomimetic or cardioselective properties, such as carteolol or betaxolol, may cause less impairment. In a randomized, double-masked study of glaucoma patients, over 60 years of age, without history of broncho...
متن کاملOxprenolol and the circulation during anaesthesia in the dog: influence of intrinsic sympathomimetic activity.
Oxprenolol is a non-selective adrenergic beta-receptor antagonist displaying beta-mimetic activity. To test the hypothesis that beta-mimetic activity could minimize the response of the circulation to adrenergic beta-receptor blockade, cumulative dose-response curves to oxprenolol 0.1-1.6 mg kg-1 were obtained in seven anaesthetized dogs. Anaesthesia was maintained with 0.5% halothane supplement...
متن کاملBucindolol displays intrinsic sympathomimetic activity in human myocardium.
BACKGROUND Most clinical studies have shown that beta-adrenergic receptor antagonists improve long-term survival in heart failure patients. Bucindolol, a nonselective beta-receptor blocker, however, failed to reduce heart failure mortality in a recent large clinical trial. The reasons for this failure are not known. Bucindolol has partial agonist properties in rat myocardium, but whether it has...
متن کاملInteractions of adrenergic beta-receptor blockade (oxprenolol) and PCO2 in the anaesthetized dog: influence of intrinsic beta-sympathomimetic activity.
Effects of change in PaCO2 on systemic and coronary haemodynamics and on coronary sinus blood-gases have been studied in 10 open-chested dogs in which the lungs were ventilated with 0.8% halothane in oxygen, before and after administration of oxprenolol 0.3 mg kg-1 i.v. The hyperdynamic response of the circulation to hypercapnia was only marginally reduced after oxprenolol (cardiac output incre...
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ژورنال
عنوان ژورنال: BMJ
سال: 1986
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.293.6555.1174-c