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本类型心绞痛以频繁但无病觉的发作性局部缺血为特征,故经连续ECG观察。10名病人胸或腹部体表每6小时涂以2%硝酸甘油软膏或安慰剂。结果:用硝酸甘油软膏与用安慰相比,前者局部缺血发作显著减少(P<0.02),血压显著下降,心率显著增多。硝酸甘油软膏对7名病人局部缺血发作能完全预防,对另3人部份预防。硝酸甘油使心脏后负荷尤其前负荷
This type of angina is characterized by frequent but disease-free episodes of ischemia and is therefore observed by continuous ECG. 10 patients with chest or abdomen every 6 hours on the body was coated with 2% nitroglycerin ointment or placebo. RESULTS: Compared with placebo, nitroglycerin ointment significantly reduced the incidence of ischemic attacks (P <0.02), decreased blood pressure, and significantly increased heart rate. Nitroglycerin ointment on seven patients with ischemic attacks can be completely prevented, and the other three were partially prevented. Nitroglycerin causes post-cardiac load especially before loading