Hydrogen sulfide (H2S), better known as a poisonous gas, has emerged as the third gaseous transmitter in mammals, next to nitric oxide (NO) and carbon monoxide (CO). Increased production and higher serum concentrations were shown in inflammatory diseases, septic shock and stroke. The investigators will test the hypothesis that higher serum H2S concentrations on admission to intensive care unit (ICU) are linked with higher mortality in patients with shock of any reason.
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Prognostic value of H2S
Timeframe: In hospital; ICU mortality 30days