Apnea Testing During Brain Death Assessment: A Review of Clinical Practice and Published Literature
Descrição
The diagnosis of brain death is a complex process. Strong knowledge of neurophysiology and an understanding of brain death etiology must be used to confidently determine brain death. The key findings in brain death are unresponsiveness, and absence of brainstem reflexes in the setting of a devastating neurological injury. These findings are coupled with a series of confirmatory tests, and the diagnosis of brain death is established based on consensus recommendations. The drive to breathe in the setting of an intense ventilatory stimulus (ie, respiratory acidosis) is a critical marker of brainstem function. As a consequence, apnea testing is an important component of brain death assessment. This procedure requires close monitoring of a patient as all ventilator support is temporarily removed and Paco2 levels are allowed to rise. A “positive” test is defined by a total absence of respiratory efforts under these conditions. While apnea testing is not new, it still lacks consensus standardization regarding the actual procedure, monitored parameters, and evidence-based safety measures that may be used to prevent complications. The purpose of this report is to provide an overview of apnea testing and discuss issues related to the administration and safety of the procedure.
Prolonged duration of apnea test during brain death examination in a case of intraparenchymal hemorrhage - Premkumar Nattanmai, Christopher R Newey, Ishpreet Singh, Keerthivaas Premkumar, 2017
Radionuclide Evaluation of Brain Death in the Post-McMath Era
Brain death: a clinical overview, Journal of Intensive Care
Confirmation of brain death using optical methods based on tracking of an optical contrast agent: assessment of diagnostic feasibility
PDF] Apnea Testing During Brain Death Assessment: A Review of Clinical Practice and Published Literature
PDF) Tension Pneumothorax During Apnea Testing for the Determination of Brain Death
Radionuclide Evaluation of Brain Death in the Post-McMath Era
Apnea testing for the diagnosis of brain death - Lang - 2005 - Acta Neurologica Scandinavica - Wiley Online Library
Optimal duration of the apnea test for determining brain death: Benefit of the short-term apnea test
Association between red blood cell distribution width and the prognosis of brain death in patients with a Glasgow Coma Scale < 6
PDF) Apnea Test Safety in Brain Death: A Single-Center Retrospective Cohort Analysis
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