title: In vitro effects of ulinastatin on blood coagulation using thromboelastography.
abstract: OBJECTIVE
  The effects of ulinastatin, urinary trypsin inhibitor, on coagulation are not fully understood. The aim of the present study was to examine the in vitro effects of ulinastatin on coagulation using modified computerised thromboelastography (ROTEM®) with InTEM®.
  
  
  METHODS
  A venous blood sample was obtained from the antecubital vein without stasis from 12 healthy adult men. A 290 µL aliquot of blood was combined with either 10 µL of ulinastatin (100 [U100], 200 [U200] or 1000 [U1000] U/mL) or 10 µL of normal saline. The samples were analysed simultaneously at 37 ºC on a four channel ROTEM® with InTEM®.
  
  
  RESULTS
  Clotting time was significantly increased in the U200 (155.8±9.3 s) and U 1000 (173.6±14.5 s) groups, compared with the control group (136.1±12.6 s). The U 1000 group significantly increased clot formation time (77.6±16.2 s; control group, 63.8±13.4 s) and significantly decreased α angle (74.6±3.3º; control group, 77.4±2.4º). No significant difference in maximum clot firmness or maximum lysis was found between the control and ulinastatin groups.
  
  
  CONCLUSIONS
  In-vitro ulinastatin had a direct anticoagulant effects, as assessed by ROTEM® with InTEM®, and the results were within the normal ranges.
authors.affiliation: Department of Anesthesiology and Pain Medicine, Konkuk University School of Medicine, Seoul, Korea.
authors.forename: W S
authors.initials: WS
authors.lastname: Kang
authors.forename: D K
authors.initials: DK
authors.lastname: Kim
authors.forename: T G
authors.initials: TG
authors.lastname: Yoon
authors.forename: T Y
authors.initials: TY
authors.lastname: Kim
authors.forename: S H
authors.initials: SH
authors.lastname: Kim
mesh_terms: D000328:Adult; D001777:Blood Coagulation / Q000187:drug effects*; D006023:Glycoproteins / Q000494:pharmacology*; D006801:Humans; D008297:Male; D012016:Reference Values; D013916:Thrombelastography / Q000379:methods*; D014361:Trypsin Inhibitors / Q000494:pharmacology*; D014914:Whole Blood Coagulation Time
chemical_list: D006023:Glycoproteins; D014361:Trypsin Inhibitors; C028665:urinastatin