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对象与方法共选择33例老年人Ⅲ～Ⅳ级稳定型劳力性心绞痛(下称心绞痛)患者为研究对象。男13例,女20例,平均年龄65．5±0．94岁。心绞痛平均病程65．5±0．94个月。全部患者入院后除出现心绞痛发作时可含服硝酸甘油片外均停用一切药物,并应用长效单硝酸异山梨酯进行治疗,剂量和用法如下：30例Ⅲ级心绞痛患者给予40mg/d,其中有11例患者于治疗3～5d后疗效不满意而增至80mg/d；3例Ⅳ级心绞痛患者给予80mg/d。用法均为每
Subjects and Methods A total of 33 elderly patients with grade Ⅲ ~ Ⅳ stable angina pectoris (hereinafter referred to as angina pectoris) were selected as the study subjects. 13 males and 20 females, with an average age of 65.5 ± 0.94 years. The average duration of angina was 65.5 ± 0.94 months. All patients in addition to the onset of angina pectoris can be sublingual nitroglycerin tablets were stopped using all drugs, and long-acting isosorbide mononitrate for treatment, dosage and usage are as follows: 30 patients with grade Ⅲ angina pectoris given 40mg / d, Among them, 11 patients were unsatisfied with the treatment of 3 ~ 5d and increased to 80mg / d; 3 patients with grade IV angina pectoris were given 80mg / d. Usage is every