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Oxygen utilization, arterial and venous blood gas levels, hemodynamic values and exercise tolerance were compared before and after administration of propranolol and verapamil in 10 patients with stable angina pectoris. During exercise, propranolol decreased cardiac output (CO) by 22%; O2 extraction
Ten men with stable angina not completely relieved by full doses of propranolol (mean 218 mg/day) were administered an oral dose of 10 mg of nifedipine or placebo on alternate mornings in a double-blind fashion. Patients had been trained in a protocol that precipitated angina after 3-6 minutes of
Relieving the symptoms of angina and improving the quality of life and functional status are important objectives in the management of patients with chronic stable angina. A high heart rate induces or exacerbates myocardial ischemia and angina because it both increases oxygen demand and decreases
ATP-sensitive potassium (K(ATP)) channels link membrane excitability to metabolism. They are regulated by intracellular nucleotides and by other factors including membrane phospholipids, protein kinases and phosphatases. K(ATP) channels comprise octamers of four Kir6 pore-forming subunits associated
The antianginal efficacy of slow-release metoprolol (SRM) alone and associated to a transdermal therapeutic system containing nitroglycerin (TTS-TNG), was investigated in 10 patients with chronic, stable exertional angina and angiographic evidence of obstructive coronary artery disease, by means of
Conventional formulations of metoprolol have become well established in cardiovascular medicine and are particularly useful in the management of hypertension and ischaemic heart disease. Recently developed controlled release metoprolol delivery systems (metoprolol CR/ZOK and metoprolol OROS) were
A 62-year-old patient undergoing aortocoronary bypass grafting had giant cell arteritis diagnosed by routine aortic biopsy done at the graft insertion site. This finding led to the tissue diagnosis of temporal arteritis and the institution of steroid therapy. In retrospect, vague symptoms of
In 242 patients with hypertension and/or angina pectoris, a new cardioselective betablocker without ISA, bisoprolol (Concor), was tested. The average mean value of 168/102 mm Hg was lowered in the 174 hypertensive patients by a systolic value of 17 and a diastolic value of 11 mm Hg. A normal
New knowledge of the pathophysiology of coronary disease has helped determine the therapy for angina pectoris. Calcium antagonists have the advantage of being direct coronary vasodilators as well as decreasing overall demand by systemic vasodilatation. Verapamil has the same anti-anginal effect
Amlodipine, a potent long-acting dihydropyridine calcium antagonist, was compared with placebo in a parallel, randomized, double-blind study in 134 patients with chronic stable angina pectoris maintained on beta-adrenergic blocking agents. After a single-blind, two-week placebo period, patients were
Although beta blockers are effective for the treatment of angina pectoris, chronic adverse effects produced by these agents--including lethargy, fatigue, and male impotence--can adversely affect patient acceptance and treatment compliance. To assess the clinical effects of switching from
The effect of timolol vs placebo on the frequency of anginal episodes, nitroglycerin consumption and exercise performance was investigated in a double-blind, randomized, crossover study in 23 patients with angina pectoris. The optimal dose of timolol (10-30 mg twice daily) for each patient was
The adequate treatment of a disease syndrome is dependent upon a clear definition of the symptomatic, pathological, physiological and prognostic targets against which therapy is to be deployed. The syndromes of ischaemic heart disease, including angina pectoris, are complex in origin, pathology,
The effects of the beta-adernergic blocking drug acebutolol were studied in 23 patients with angina pectoris and angiographically documented coronary artery disease. Patients were evaluated clinically, by graded treadmill testing and by 24-hour Holter monitoring in the control state, after 2 weeks