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本文研究咖啡因和进餐对植物神经衰竭病人的血压及心率的影响,也研究了咖啡因对血浆去甲肾上腺素、肾上腺素和肾素的活性作用。已发现植物神经衰竭的病人在餐后血压明显降低,这些病人缺乏完善的缓冲心血管反应,且对中枢血容量改变非常敏感。餐后低血压可能与进餐引起血
This article studies the effects of caffeine and meal on blood pressure and heart rate in patients with autonomic failure and the effects of caffeine on plasma norepinephrine, epinephrine, and renin. Patients with autonomic failure have been found to have significantly reduced postprandial blood pressure, and these patients lack a well-established buffer of cardiovascular responses and are very sensitive to changes in central blood volume. Postprandial hypotension may cause blood meal