منابع مشابه
Beta-blockade in heart failure. Basic concepts and clinical results.
Both experimental and clinical observation suggest that activation of the sympathetic nervous system exerts an important deleterious effect in patients with chronic heart failure. The precise mechanisms responsible for this effect have not been defined, but prolonged exposure to norepinephrine is associated with a variety of adverse physiologic and biochemical/molecular actions. Identification ...
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BACKGROUND Aneurysmal subarachnoid hemorrhages are frequently complicated by hypertension and neurogenic myocardial stunning. Beta blockers may be used for management of these complications. We sought to investigate sympathetic nervous system modulation by beta blockers and their effect on radiographic vasospasm, delayed cerebral infarction, discharge destination and death. METHODS Retrospect...
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data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Haemodynamic advantages of combined alpha-blockade and beta-blockade over beta-blockade alone in patients with coronary heart disease.
The acute haemodynamic effects of beta-blockade with propranolol and combined alpha-blockade and beta-blockade with labetalol were compared in a randomised study in 12 patients with coronary artery disease proved by angiography. Propranolol induced significantly greater depression of left ventricular function both at rest and during exercise than labetalol. This difference was probably attribut...
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ژورنال
عنوان ژورنال: Clinical Cardiology
سال: 1988
ISSN: 0160-9289,1932-8737
DOI: 10.1002/clc.4960110508