IRCT20170822035849N4 IRCT 2018-04-15 Sabzevar University of Medical Sciences Comparison of two methods heparin infusion, intermittent intravenous injection and continuous infusion in patients with Acute Coronary Syndrome Disease Comparison Study of heparin injection by using intermittent intravenous injection and Continuous Infusion Syringe Pump , on APTT results and possible side effects in patients with acute coronary syndrome (ACS), in 22 Bahman Hospital of Neishabour 2017-07-23 anticipated 60 Complete https://irct.ir/trial/26965 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention, Other design features: The study specification is that in the intermittent intravenous injection method, heparin is injected 30 units per kilogram of body weight, which is injected every three hours, Randomization description: In this study, limited randomization was used randomly and the subjects were divided in two equal groups. The first 30 person who were diagnosed with ACS were placed in the continuous infusion group and the next 30 who were admitted to this diagnosis were placed in intermittent intravenous injection. 3 Acute coronary syndrome. Intervention 1: In this study, the patients were divided into two groups of 30, randomly divided into: 1) intervention group: In the intervention group, the administration of heparin, based on the half-life of it and weight of the patients, was about 2500 units every three hours and APTT controlled for 48 hours every 6 hours. Intervention 2: Control group: Control group: In the control group, heparin was routinely infused with a syringe pump based on body weight with dose of 60 units per kg, per hour and APTT was controlled for 48 hours every 6 hours. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is No more information