• Pediatr Crit Care Me · Dec 2020

    Apnea Testing Using Continuous Positive Airway Pressure When Determining Death by Neurologic Criteria in Children: Retrospective Analysis of Potential Adverse Events.

    • Deirdre F Puccetti, Wynne Morrison, Conall Francoeur, Mark Mai, and Matthew P Kirschen.
    • Department of Pediatrics, Boston Children's Hospital, Boston, MA.
    • Pediatr Crit Care Me. 2020 Dec 1; 21 (12): e1152-e1156.

    ObjectivesTo determine the prevalence of adverse events during apnea testing for determination of death by neurologic criteria using continuous positive airway pressure in children.DesignSingle-center retrospective descriptive study.SettingAcademic children's hospital.PatientsChildren evaluated for death by neurologic criteria in the PICU from 2013 to 2018.InterventionsNone.Measurements And Main ResultsFor each patient evaluated for death by neurologic criteria, we abstracted the number of apnea tests performed, vital signs and arterial blood gases during apnea testing, and outcome from the medical record. Adverse events were defined as oxygen-hemoglobin desaturation (arterial oxygen saturation < 85%), hypotension, or other significant event (e.g. arrhythmia, cardiac arrest) based on documentation in the medical record. We determined which adverse events resulted in early termination of the apnea test. We used oxygenation index, ventilator variables, and presence of vasopressors to determine preapnea test cardiopulmonary dysfunction. Seventy-two patients (age 7 yr [2.7-13.2 yr]; 48% male) underwent 121 apnea tests. Nine patients (12%) had 13 potential apnea tests deferred due to concern for cardiopulmonary instability as determined by the attending physician. Patients who underwent apnea testing had an oxygenation index of 3.5 (2.5-4.8) and were receiving vasopressors at the time of 108 apnea tests (89%). Hypotension was reported during seven apnea tests (6%) and resulted in the early termination of one apnea test (<1%). No other adverse events were reported. One hundred and twenty apnea tests (99%) were consistent with death by neurologic criteria.ConclusionsApnea testing following a protocol that uses continuous positive airway pressure for apneic oxygenation has a low rate of adverse events in children meeting prerequisite criteria and determined by a pediatric intensivist to be physiologically appropriate for testing.

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