Treating a limb-threatening arterial clot in a newborn with catheter-directed thrombolysis

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Non-catheter related arterial thromboembolism in the neonatal population is rare and carries a significant risk of organ damage or limb loss. Thrombolysis, whether systemic or catheter- directed, is reserved either for limb or life-threatening thrombosis due to risk of bleeding especially in premature neonates. In this case, an infant male born at 34 weeks and 4 days gestational age presented with limb-threatening clot in the distal right subclavian artery and proximal right axillary artery with no known cause. After discussion of risks and benefits of various treatment options, he received thrombolysis treatment with low dose recombinant TPA via an umbilical artery catheter. There was complete resolution of the thrombus with this treatment and the patient had no significant bleeding while receiving treatment. Further investigation is needed to identify the patient population that will benefit from catheter-directed thrombolytic therapy and how to best monitor these patients.

Original languageEnglish (US)
Pages (from-to)589-591
Number of pages3
JournalJournal of Thrombosis and Thrombolysis
Issue number4
StatePublished - May 2023

ASJC Scopus subject areas

  • Hematology
  • Cardiology and Cardiovascular Medicine


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