Cranial sonography of the infant treated with extracorporeal membrane oxygenation

Neonates with severe but reversible pulmonary disease may require therapy beyond conventional ventilatory care. Extracorporeal membrane oxygenation (ECMO) serves as a temporary artificial lung for such infants. Since anticoagulation with systemic heparin is required in the extracorporeal circuit, antecedent hemorrhage may be exacerbated or new hemorrhage precipitated in ECMO patients. While the "usual" periventricular/intraventricular hemorrhage seen in a premature infant may develop, contrasting hemorrhages of unusual extent, uncommon location, or demonstrating unique alterations in internal sonographic character may be precipitated, presumably due to the requisite anticoagulation. Representative examples of such variations are presented along with guidelines for the use of cranial sonography in selecting and monitoring ECMO patients.
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