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Background: The characterization of the different pathophysiological mechanisms involved in normotensive versus hypertensive acute heart failure (AHF) might help to develop individualized treatments. Methods: The extent of hemodynamic cardiac stress and cardiomyocyte injury was quantified by measuring the B-type natriuretic peptide (BNP), N-terminal proBNP (NT-proBNP), and high-sensitivity cardiac troponin T (hs-cTnT) concentrations in 1152 patients presenting with centrally adjudicated AHF to the emergency department (ED) (derivation cohort). AHF was classified as normotensive with a systolic blood pressure (SBP) of 90–140 mmHg and hypertensive with SBP > 140 mmHg at presentation to the ED. Findings were externally validated in an independent AHF cohort (n = 324). Results: In the derivation cohort, with a median age of 79 years, 43% being women, 667 (58%) patients had normotensive and 485 (42%) patients hypertensive AHF. Hemodynamic cardiac stress, as quantified by the BNP and NT-proBNP, was significantly higher in normotensive as compared to hypertensive AHF [1105 (611–1956) versus 827 (448–1419) pg/mL, and 5890 (2959–12,162) versus 4068 (1986–8118) pg/mL, both p < 0.001, respectively]. Similarly, the extent of cardiomyocyte injury, as quantified by hs-cTnT, was significantly higher in normotensive AHF as compared to hypertensive AHF [41 (24–71) versus 33 (19–59) ng/L, p < 0.001]. A total of 313 (28%) patients died during 360 days of follow-up. All-cause mortality was higher in patients with normotensive AHF vs. patients with hypertensive AHF (hazard ratio 1.66, 95%CI 1.31–2.10; p < 0.001). Normotensive patients with a high BNP, NT-proBNP, or hs-cTnT had the highest mortality. The findings were confirmed in the validation cohort. Conclusion: Biomarker profiling revealed a higher extent of hemodynamic stress and cardiomyocyte injury in patients with normotensive versus hypertensive AHF.

Background: Cardiogenic shock (CS) is a severe myocardial dysfunction secondary to various cardiac conditions including ST‐segment elevation acute myocardial infarction (STEMI) and associated with a high risk of death. Little is known on epigenetic determinants in CS. Here, we investigated plasma miRNAs in relation to CS stratification in STEMI‐patients. Methods: STEMI‐patients (n = 49), with (CS, n = 25) and without CS (non‐CS, n = 24) fulfilling inclusion criteria were included from HSCSP‐cohort (Derivation‐cohort). CS‐miRNAs were analysed by Affymetrix‐microarray and RT‐PCR. Results were validated in a second cohort of CS‐patients (CardShock: n = 35) with similar inclusion/exclusion criteria as the derivation cohort. In silico analysis were performed to identify potential miRNA target genes. Results: Of the 5‐miRNA signature obtained from microarray analysis, miR‐619‐5p showed higher levels in CS than in Non‐CS patients (p =.003) and discriminating power for CS by ROC (AUC:.752, p =.003). miR‐619‐5p directly associated with risk scores [GRACE, p =.001; CardShock, p <.001]. Furthermore, miR‐619‐5p showed discrimination power for death in CS. Thus, miRNA levels were significantly higher in patients with mortality outcome both in the Derivation HSCSP‐cohort (p =.02; AUC:.78 ±.095) and the Validation CardShock‐cohort (p =.017; AUC:.737 ±.086) By in silico analysis, miR‐619‐5p target genes and TNF‐alpha were involved in the regulation of inflammation. miR‐619‐5p and TNF‐alpha levels discriminated mortality outcome in CS‐patients during 30‐day follow‐up (Validation‐Cohort: ROC:.812, p =.002; HR: 9.99, p =.003). Conclusions: Up‐regulation of miR‐619‐5p is found in the plasma of STEMI‐patients with CS and mortality outcome. These findings highlight the specificity of epigenetic regulation of inflammation on the disease severity of MI. [ABSTRACT FROM AUTHOR]