Younger Age Increases Risk of Self-reported Affective and Cognitive Sequelae Six Months Post Cardiac Arrest

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Introduction: Self-reported affective and cognitive sequelae are frequently reported in cardiac arrest survivors; however, little is known about the risk factors. Hypothesis: We assessed the hypothesis that self-reported (subjective) affective and cognitive outcomes six months after OHCA may be associated with demography, acute care and cerebral outcome. Methods: This is a sub study of the multicenter “Target Temperature Management for 48 vs. 24 hours and Neurologic Outcome after Out-of-Hospital Cardiac Arrest: A Randomized Clinical Trial” (the TTH48 trial) investigating the effect of prolonged TTM (24h vs 48h) at 33±1°C. Patients with good outcome on the Cerebral Performances Categories (CPC score≤2) were invited to answer questionnaires on anxiety, depression, emotional distress, perceived stress and cognitive failures six months after OHCA. Multivariate regression analyses were used to test the possible predictors of self-reported outcomes six months follow-up added successively in three blocks: [1] demography (age and gender), [2] acute care (time to ROSC and allocated treatment (24h vs 48h TTM)) and [3] cerebral outcome (objective cognitive impairment and CPC score). Results: A total of 79 out of 107 eligible patients were included in the analysis. There were no significant differences in baseline characteristics between the included group and the group lost to follow-up. [1] Younger age was a significant predictor across all self-reported outcomes, even when controlling for gender, ROSC time, treatment allocation, cognitive impairment and global outcome (CPC). Female gender was a predictor of anxiety, though this should be interpreted cautiously as only eight women participated. [2] ROSC time predicted self-reported cognitive failures, when not controlling for block 3. Treatment allocation had no predictive value. [3] Objective cognitive impairment was not a predictor of self-reported affective or cognitive sequelae. The CPC score was a significant predictor of self-reported affective outcomes, albeit not for self-reported cognitive failures. Conclusion: Younger age was a significant risk factor for self-reported affective and cognitive sequelae six months post OHCA. The CPC score may be a proxy for self-reported affective outcomes.
StatusUdgivet - 2020

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