CPR-induced consciousness in hypothermic cardiac arrest: Where is the limit of tolerance of the human brain? A case report
Abstract
BACKGROUND: CPR-induced consciousness (CPRIC) is defined as consciousness during CPR, ranging from eye opening to combative behaviour and vocalisation, despite the absence of spontaneous circulation. CPRIC has not previously been reported in hypothermic cardiac arrest. PATIENT PRESENTATION: A middle-aged man who was pulled from cold water appeared conscious during CPR, despite confirmed cardiac arrest and severe accidental hypothermia. An additional factor that could have influenced the victim’s behaviour was severe hypoglycaemia. The patient was rewarmed with veno-arterial extracorporeal membrane oxygenation (V-A ECMO) and discharged from the hospital without any neurological deficits. CONCLUSIONS: In hypothermic cardiac arrest, the paradoxical preservation of consciousness may be a consequence of adequate cerebral perfusion during cardiopulmonary resuscitation and the neuroprotective effect of hypothermia, despite other risk factors for brain injury.
How strong is the evidence?
Evidence Hub reads this as a case report, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.
Read the paper
Related studies
- Chaos and quantum thermalization
- The Dalton quantum chemistry program system
- Cord Blood Leptin and Adiponectin as Predictors of Adiposity in Children at 3 Years of Age: A Prospective Cohort Study
- Quantitative metabolomics by H-NMR and LC-MS/MS confirms altered metabolic pathways in diabetes
- Stable adiabatic quantum batteries
- A novel self-lipid antigen targets human T cells against CD1c(+) leukemias
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.