To identify the long-term survival rate and prognostic factors of AMI in Korea, total 404 patients who presented between Jan 1984 and mar 1989 at Seoul National University Hospotal were followed for and average of 24.9+/-18.2 months(range 1 to 69 months). 50 patients(12.4%) died during the in-hospital period and 25 patients(6.2%) died after discharge. Among the survivors reinfarction developled in 11 patients(3.3%). Overall survival rates were 0.87, 0.85, 0.83, 0.81, 0.79, 0.77 and event-free survival rates were 0.87, 0.84, 0.83, 0.79, 0.77, 0.72 at 1, 6, 12, 24, 36, 48 months respectively. During the in-hospital period sex, age, peak creatine kinase level, Killip class, Q wave in ECG, heart failure, and AV block in anterior infarction were of prognostic value. After discharge age, exercise duration on pre-discharge treadmill test, cardiac index, ejection fraction, and presence of heart failure were significant prognostic factors. Pre-discharge coronary angiographies were performed in 217 cases. There was no statistically significant difference in survival rate between multiple vessel disease and single vessel disease. But the more the number of involved vessels was, the higher the incidence of reinfarction was. In the group with jeopardy score less than 8, event-free survival rate was signigicantly higher. Overall survival rate was higher and reinfarction rate was lower in the group, but both were not statistically significant. On discriminant analysis of in-hospital prognostic factors, Killip class, heart failure and age were independent prognostic factors, but other factors had no additional prognostic value.
Atrioventricular Block ; Coronary Angiography ; Creatine Kinase ; Disease-Free Survival ; Electrocardiography ; Exercise Test ; Heart Failure ; Humans ; Incidence ; Infarction ; Korea ; Myocardial Infarction* ; Seoul ; Survival Rate* ; Survivors

It has been already reported that diazepam pretreatment attenuated succinylcholine(Sch)-induced myalgia, fasciculation and potassium elevation. The effect of midazolam, a benzodiazepine derivative like diazepam, on Sch has not been investigated. So Midazolam, d-Tubocurarine and diazepam pretreatment were studied to determine the effect on subsequently administered Sch in 36 female patients. The patients were divided into 4 groups. Group 1 received no pretreatment, only Sch 1mg/kg(control). While Group 2 received d-Tubocurarine 0.05mg/kg, Group 3 received diazepam 0.05 mg/kg, and Group 4 received midazolam 0.025 mg/kg. After the pretreatment 4 minutes before Sch administration, the time to abolition and recovery of twitch height, the degree of fasciculation, the adequacy of relaxation for intubation, the changes in serum potassium and creatine pliosphokinase(CPK) were measured. The results are as follows: I) Group 2 showed increased time to abolition of twitch and decreased time to recovery of twitch. Group 3 showed increased time to recovery of twitch. 2) The incidence of fasciculation was decreased in Groups 2, 3 and 4. 3) Serum potassium was increased in Groups 1 and 2 but not in Groups 3 and 4. 4) Serum creatine phosphokinase was in- creased in all groups at post-Sch. 24 hours. It is concluded that diazepam and midazolam pretreatment attenuate Sch-inducedifasciculation and potassium increase.
Benzodiazepines ; Creatine Kinase* ; Creatine* ; Diazepam* ; Fasciculation* ; Female ; Humans ; Incidence ; Intubation ; Midazolam* ; Muscle Relaxation* ; Myalgia ; Potassium* ; Relaxation* ; Succinylcholine* ; Tubocurarine