Brain Hypoxia Is Associated With Neuroglial Injury in Humans Post–Cardiac Arrest

Autor: Sophie Stukas, Jennifer Cooper, David K. Menon, Donald E. G. Griesdale, Mypinder S. Sekhon, Cheryl L. Wellington, Veronica Hirsch-Reinshagen, Sonny Thiara, Nicholas A Fergusson, Philip N. Ainslie, Denise Foster, Edward M. Conway, Peter Gooderham, Ryan L. Hoiland
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Circulation Research
ISSN: 1524-4571
0009-7330
Popis: Supplemental Digital Content is available in the text.
Rationale: Secondary brain hypoxia portends significant mortality in ischemic brain diseases; yet, our understanding of hypoxic ischemic brain injury (HIBI) pathophysiology in humans remains rudimentary. Objective: To quantify the impact of secondary brain hypoxia on injury to the neurovascular unit in patients with HIBI. Methods and Results: We conducted a prospective interventional study of invasive neuromonitoring in 18 post–cardiac arrest patients with HIBI. The partial pressures of brain tissue O2 (PbtO2) and intracranial pressure were directly measured via intraparenchymal microcatheters. To isolate the cerebrovascular bed, we conducted paired sampling of arterial and jugular venous bulb blood and calculated the transcerebral release of biomarkers of neurovascular injury and inflammation in the patients with HIBI and 14 healthy volunteers for control comparisons. Ten patients with HIBI exhibited secondary brain hypoxia (PbtO2
Databáze: OpenAIRE