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Article Abstract

Objective: To 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.

Design: Retrospective case series.

Setting: Single-center, quaternary, academic children's hospital in the United States.

Patients: Patients younger than 1 year of age whose evaluation for BD/DNC included a nuclear medicine cerebral perfusion study as an ancillary test, 2005-2022.

Interventions: None.

Measurements And Main Results: Ten 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.

Conclusions: Radionuclide 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.

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Source
http://dx.doi.org/10.1097/PCC.0000000000003596DOI Listing

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