The results of fibrinolytic therapy with urokinase were evaluated in 2
6 neonates with catheter related central venous thrombosis. Complete t
hrombolysis could be achieved in 13 patients (50%), partial thrombolys
is in 3 patients (12%). No effect was seen in 10 patients (38%). Thera
py success was influenced by age, size and location of the thrombus. C
oincidence of infection occurred in 16 patients (62%). Mild hemorrhagi
c complications were seen in patients (8%), no other significant side
effects were observed. Nine patients with residual thrombosis were tre
ated with oral anticoagulants following urokinase resulting in resolut
ion of the thrombus in 6 patients within 3 months (67%). The incidence
of asymptomatic recurrent thrombosis was high (28%). Urokinase might
be an effective and safe treatment for central venous thrombosis in ne
onates. Prophylactic antibiotic therapy during the infusion of urokina
se and long-term treatment with oral anticoagulants after thrombosis a
re advisable. Early detection of thrombosis might enhance the success
rate of fibrinolytic therapy. Therefore, we strongly recommend routine
echocardiographic screening of central venous catheters.