Longevity of the placebo effect in the therapeutic angiogenesis and laser myocardial revascularization trials in patients with coronary heart disease.
نویسندگان
چکیده
The long-term beneficial effects of placebo therapy were evaluated in angiogenesis and laser myocardial revascularization trials in patients who had end-stage coronary heart disease. Improvements in mean angina class, exercise treadmill time, and quality of life were mostly maintained at 30 +/- 6 months of follow-up. Persistence of effect cannot be used as evidence of efficacy, and double-blinded trials are essential in this patient population.
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عنوان ژورنال:
- The American journal of cardiology
دوره 95 12 شماره
صفحات -
تاریخ انتشار 2005