Study of using urokinase for injection to lysis endometriosis ovarian cyst under sonography guided puncture

Objective To establish a method for lysis coagula rapidly within endometriosis cyst to ease aspiration difficulty while ultrasound-guided puncture and aspiration therapy. Methods Urokinase for injection with different concentration was used to lysis the coagula within endometriosis ovarian cyst with thick content. The effect of urokinase on the coagula, the wall of cyst and the aspiration rate of content were investigated. Results The area of coagula in unit area was significantly small in urokinase group compared with that in control group[( 95.6± 17.5)μm2 vs ( 1692.3± 1028.3)μm2,F= 28.86,P= 0.000]. Urokinase can lysis the coagula appending to the wall but did not change the permeability of cyst wall. The aspiration rate was significantly faster in urokinase group than in control group[( 2.79± 2.61)ml/min vs ( 1.42± 0.58)ml/min; t= 2.4572,P= 0.0121]. Conclusions Urokinase can resolve the coagula within endometriosis ovarian cyst and on the cyst wall safely and effectively, making it easy for cyst content aspirating and improving the coagulation effect of ethanol.