|
The objective of this study was to investigate the effects of risk factors on the re-perfusion time and the subsequent mortality among patients with acute myocardial infarction(AMI). Medical records of the 1,599 AMI patients were reviewed to conduct a retrospective survey study. The subjects included AMI patients whovisited one of three target hospitals located in Seoul, Gyeonggi, or Gangwon from January1991 to June 2000. Medical records were reviewed by seven research nurses who had clinical experiences either in the emergency care or the intensive care units using structured chart abstract form. Findings from this study are as follow: First, risk factors that significantly affected on the mortality after AMI included old age(OR=3.4), presence of rale at the time of arrivals at the emergency room(OR=7.4), presence of hypotension and tachycardia(OR=6.2), and female gender(OR=2.2). Second, the effects of risk factors on pre-hospital delay time until the initiation of the major treatment after acute myocardial infarction, were significant only in female(p=0.026). Third, the effects of risk factors on in-hospital delay time until thrombolytic therapy, were significant in female(p=0.000). Forth, presence of hypotension and tachycardia significantly affects on in-hospital delay time in PTCA group(p=0.04). Additionally, pre-hospital delay time was longer in women than in men. The effect of gender in the association between the time taken from symptom onset to the major treatment and the subsequent mortality should be further studied.
|