Comparison of propranolol, diltiazem, and nifedipine in the treatment of ambulatory ischemia in patients with stable angina. Differential effects on ambulatory ischemia, exercise performance, and anginal symptoms. The ASIS Study Group.
Comparison of propranolol, diltiazem, and nifedipine in the treatment of ambulatory ischemia in patients with stable angina. Differential effects on ambulatory ischemia, exercise performance, and anginal symptoms. The ASIS Study Group.
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普萘洛尔、地尔硫卓和硝苯地平治疗稳定性心绞痛患者动态缺血的比较。
DOI:
10.1161/01.cir.82.6.1962
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发表时间:
1990
期刊:
影响因子:
37.8
通讯作者:
Raby,K
中科院分区:
文献类型:
--
作者:
Stone,PH;Gibson,RS;Glasser,SP;DeWood,MA;Parker,JD;Kawanishi,DT;Crawford,MH;Messineo,FC;Shook,TL;Raby,K
Episodes of transient myocardial ischemia during ambulatory activities are common in patients with stable coronary artery disease and who are often asymptomatic. Selection of therapy for episodes of asymptomatic ischemia is limited by a lack of direct comparative studies. To determine the most effective monotherapy for patients with stable angina and a high frequency of asymptomatic ischemic episodes, propranolol-LA (mean daily dose, 293 mg), diltiazem-SR (mean daily dose, 350 mg), nifedipine (mean daily dose, 79 mg) were each compared with placebo, each for 2 weeks, in a randomized, double-blinded, crossover trial. Entry criteria were a positive exercise treadmill test during placebo therapy characterized by 1.0 mm or more ST segment depression and angina pectoris, and six or more episodes of transient ST segment depression of 1.0 mm or more on a 48-hour ambulatory electrocardiogram. One hundred ninety-four patients were screened, 63 were eligible and received randomized therapy, of which 56 patients completed at least two of the four treatment periods and were included in an intent-to-treat analysis. Fifty patients completed all four treatment phases and were included in the protocol-completed analysis. Anti-ischemia efficacy was assessed by 48-hour ambulatory electrocardiographic monitoring, exercise treadmill tests, and anginal diaries. Ninety-four percent of all episodes of ambulatory ischemia were asymptomatic. Compared with placebo, only propranolol was associated with a marked reduction in all manifestations of asymptomatic ischemia during ambulatory electrocardiographic monitoring (2.3 versus 1.0 episodes/24 hr; mean duration of ischemia per 24 hours, 43.6 versus 5.7 minutes; both p less than 0.0001). Diltiazem's reduction of the frequency of episodes compared with placebo (2.3 versus 1.9 episodes/24 hr) was associated with a trend (p = 0.08) in the protocol-completed analysis and with a significant reduction in the intent-to-treat analysis (p = 0.03). Nifedipine had no significant effect on any measured variable of ambulatory ischemia. The dosages of medication used may have been excessive for some patients, and a more beneficial effect may have been evident at a lower dose. In contrast to the marked effects of the active agents on ambulatory asymptomatic ischemia, the effects on exercise performance and angina pectoris were slight. The active agents modestly improved treadmill exercise duration time until 1 mm ST segment depression (3%), and only propranolol and diltiazem had significant effects. Only diltiazem significantly prolonged the total exercise time. Anginal frequency was significantly decreased by both propranolol and diltiazem.(ABSTRACT TRUNCATED AT 400 WORDS)
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DOI:
10.1016/0002-9343(81)90229-1
发表时间:
1981
期刊:
The American journal of medicine
影响因子:
--
作者:
H. Mueller;R. Chahine
通讯作者:
R. Chahine
影响因子:
2.7
作者:
L. Ekelund;L. Orö
通讯作者:
L. Orö
DOI:
10.1016/s0140-6736(84)91106-1
发表时间:
1984
期刊:
The Lancet
影响因子:
--
作者:
J. Deanfield;M. Kensett;R. Wilson;M. Shea;P. Horlock;C. Landsheere;A. Selwyn
通讯作者:
A. Selwyn
DOI:
10.1016/0002-9149(86)90410-8
发表时间:
1986
期刊:
The American journal of cardiology
影响因子:
--
作者:
D. Tzivoni;A. Gavish;J. Benhorin;A. Keren;S. Stern
通讯作者:
S. Stern
DOI:
--
发表时间:
1989
期刊:
JAMA : the journal of the American Medical Association
影响因子:
--
作者:
Psaty,BM;Koepsell,TD;LoGerfo,JP;Wagner,EH;Inui,TS
通讯作者:
Inui,TS