Sep 21, 2019

The complement lectin pathway protein MAp19 and out-of-hospital cardiac arrest: Insights from two randomized clinical trials

European Heart Journal. Acute Cardiovascular Care
John Bro-JeppesenSteffen Thiel


Activation of the complement system is known to be a potent inducer of systemic inflammation, which is an important component of post-cardiac arrest syndrome. Mannan-binding-lectin associated protein of 19 kDa (MAp19) is suggested to be a regulatory component of the lectin pathway of complement activation. The aims of this study were to describe serial levels of MAp19 protein in comatose survivors of out-of-hospital cardiac arrest (OHCA), to evaluate the effect of two different regimes of targeted temperature management and to investigate the possible association between levels of MAp19 and mortality. In this post-hoc study, we analysed data from two large randomized controlled studies: 'Targeted temperature management at 33 degrees C versus 36 degrees C after cardiac arrest' (TTM) and 'Targeted temperature management for 48 versus 24 h and neurological outcome after out-of-hospital cardiac arrest' (TTH). We measured serial levels of MAp19 in 240 patients within 72 h after OHCA and in 82 healthy controls. The effect of targeted temperature management on MAp19 levels was analysed according to temperature allocation in main trials. MAp19 levels were significantly lower in OHCA patients within 48 h after OHCA (p-values <0.001) com...Continue Reading

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Mentioned in this Paper

Biochemical Pathway
4.2 kDa peptide
MASP2 gene
Clinical Trials, Randomized
Disease Management
Hospital Admission
Nonclinical Randomization

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