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Mean arterial pressure during targeted temperature management and renal function after out-of-hospital cardiac arrest

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DOI

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PURPOSE: This study investigates the association between mean arterial pressure (MAP) and renal function after out-of-hospital cardiac arrest (OHCA).

MATERIALS AND METHODS: Post-hoc analysis of 851 comatose OHCA-patients surviving >48 h included in the targeted temperature management (TTM)-trial.

RESULTS: Patients were stratified by mean MAP during TTM in the following groups; <70 mmHg (22%), 70-80 mmHg (43%), and > 80 mmHg (35%). Median (interquartile range) eGFR (ml/min/1.73 m2) 48 h after OHCA was inversely associated with MAP-group (70 (47-102), 84 (56-113), 94 (61-124), p < .001, for the <70-group, 70-80-group and > 80-group respectively). After adjusting for potential confounders, in a mixed model including eGFR after 1, 2 and 3 days this association remained significant (pgroup_adjusted = 0.0002). Higher mean MAP was independently associated with lower odds of renal replacement therapy (odds ratioadjusted = 0.77 [95% confidence interval, 0.65-0.91] per 5 mmHg increase; p = .002]).

CONCLUSIONS: Low mean MAP during TTM was independently associated with decreased renal function and need of renal replacement therapy in a large cohort of comatose OHCA-patients. Increasing MAP above the recommended 65 mmHg could potentially be renal-protective. This hypothesis should be investigated in prospective trials.

OriginalsprogEngelsk
TidsskriftJournal of Critical Care
Vol/bind50
Sider (fra-til)234-241
Antal sider8
ISSN0883-9441
DOI
StatusUdgivet - 2019

ID: 56237932