Chronological features of acute coronary syndrome / acute myocardial infarction (materials to register)

Purpose: studying influence chronobiological factors on frequency of occurrence ACS/ AMI Material and methods: Epidemiological features of AMI and ACS were studied among the constant population of one of districts of Tashkent. The research was carried during one year (from 1.07.2009 to 30.06.2010). Results: the register were included 683 patients with AMI/ACS., of them men - 67,9 % and women - 32,1 %. According to our data January and December appeared to be the less favourable months, and Mаy and June were the most favourable. The analysis of the incidence rate of ACS/AMI with regards to seasons of year showed, that the greatest quantity of patients as well as of lethal outcomes (23,0 % and 33,9 %, respectively) at the prehospital stage was noted on the autumn-winter period. Lethal outcomes at a pre-hospital stage on time of days were registered in night (0.00 till 5.59 o''clock) and morning (6.00 till 11.59 o''clock) hours (29,6 % and 27,1 % accordingly) is slightly more often. Conclusion. Thus, our researches have confirmed a universal tendency that episodes ACS/AMI on time of days meet in the morning is more often, and night time of days is interfaced to higher probability lethality at a pre-hospital stage.