• Pediatr Crit Care Me · Dec 2024

    Nuclear Medicine Cerebral Perfusion Studies as an Ancillary Test to Support Evaluation of Brain Death/Death by Neurologic Criteria: Single-Center Experience in Infants, 2005-2022.

    • Ashley M Bach, Nicole K McKinnon, Hongming Zhuang, Elizabeth Kaufman, and Matthew P Kirschen.
    • Division of Neurology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA.
    • Pediatr Crit Care Me. 2024 Dec 1; 25 (12): 108910951089-1095.

    ObjectiveTo describe the use of nuclear medicine cerebral perfusion studies as an ancillary test for brain death/death by neurologic criteria (BD/DNC) in infants aged under 1 year.DesignRetrospective case series.SettingSingle-center, quaternary, academic children's hospital in the United States.PatientsPatients younger than 1 year of age whose evaluation for BD/DNC included a nuclear medicine cerebral perfusion study as an ancillary test, 2005-2022.InterventionsNone.Measurements And Main ResultsTen infants were identified from local databases. Mechanisms of brain injury included hypoxic-ischemic injury (8/10), traumatic brain injury (1/10), and intracranial hemorrhage (1/10). Testable components of the first BD/DNC examination were consistent with BD/DNC in all patients. Apnea testing was consistent with BD/DNC in 5 of 10 patients and deferred or terminated prematurely in 5 of 10 patients. All patients underwent ancillary testing with a nuclear medicine scan to assess cerebral perfusion using 99mTc-ethyl cysteinate dimer (99mTc-ECD). Indications were inability to complete the apnea test (5/10), presence of a confounder to the clinical examination (3/10), and clinician discretion (2/10). Nine studies were consistent with BD/DNC. The patient whose ancillary test was inconsistent with BD/DNC had their examination limited by the inability to assess the pupillary reflex and subsequently underwent withdrawal of life-sustaining technology.ConclusionsRadionuclide cerebral perfusion studies using 99mTc-ECD were used in our setting to support the determination of BD/DNC in infants aged younger than 1 year of age.Copyright © 2024 by the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies.

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