Ultrasonic detection of complications following umbilical arterial catheterization in the neonate.

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Abstract
Human neonates (71) with umbilical arterial catheters received serial real-time ultrasound examinations in order that the identification and natural history of catheter-associated thromobosis could be prospectively evaluated. Of the infants, 12 (17%) had clinically evident signs of vascular compromise. Ultrasound detected abnormal intravascular echoes or lack of expansile pulsation in 10 these 12 (83%). Abnormal echogenic foci were consistent with thrombus and intimal dissection. Two infants without clinical evidence of vascular compromise had ultrasonic findings consistent with thrombus. The ultrasonically detected abnormalities persisted from 2 to 70 days.

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