TY - JOUR T1 - Vital systems, Grand body systems: Cardiovascular systems TT - دستگاههای حیاتی دستگاههای ارشد بدن دستگاه قلبی عروقی JF - IJN JO - IJN VL - 9 IS - 10 UR - http://ijn.iums.ac.ir/article-1-1161-en.html Y1 - 1995 SP - 14 EP - 21 KW - Cardiovascular systems KW - Unstable angina N2 - Unstable angina has progressive process and even in rest time, it happens frequently. It is a serious situation and 15-20 percent of patients are dying in duration of one year. Treatment: patients often hospitalized because observation of their reactions to treatment is easier in hospital. Treatment plan must be explain for them carefully. When patient’s situation due to anxiety is critical, benzodiazepines may be useful. If there is not any contraindication, we may be use β-blockers with or without nifedipine. M3 ER -