Urokinase treatment of neonatal aortoiliac thrombosis caused by umbilical artery catheterization: a case report.
Umbilical artery catheterization is known to be associated with aortoiliac thrombosis in approximately 1% of newborns in whom catheters are placed. We describe a case of catheter-associated aortoiliac thrombosis in a newborn who was successfully treated by urokinase infusion. The infant was monitored by imaging studies followed by ultrasonography. The use of real-time ultrasonography enabled us to image this infant's aortoiliac thrombosis in an accurate, noninvasive manner and monitor the effectiveness of thrombolytic therapy. The fibrinolytic state was achieved with a combination of intravenous and intraarterial infusions of urokinase. Frequent measurement of prothrombin time, activated partial thromboplastin time, fibrinogen, and thrombin time was used to guide fibrinolytic therapy. We reviewed the literature for similar cases of aortoiliac thrombosis in newborns; some were managed by medical means, others by operation. The success rate of the two approaches appeared to be approximately equal. Therefore we recommend the less invasive approach first--urokinase therapy--to be followed by surgical intervention if thrombolysis is unsuccessful.
Smith, PK; Miller, DA; Lail, S; Mehta, AV
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