Abstract:
:Low levels of Soluble TNF-related apoptosis induced ligand (sTRAIL) seem to be related to worse prognosis after an acute coronary syndrome. PostConditioning (PostCond) may protect the heart from reperfusion injury. We sought to evaluate the impact of PostCond on sTRAIL in relationship to infarct size (area under the curve of Troponin T, AUCTnT) and left ventricle ejection fraction (LVEF) in a series of patients undergoing primary coronary intervention for ST-segment elevation myocardial infarction (STEMI). In a substudy of a randomized trial that tested the effects of PostCond in STEMI-patients, sTRAIL was measured 24 h after reperfusion (PostCond n = 39, Control n = 39). Correlations between sTRAIL and both AUCTnT and LVEF were studied for each study arm. At 24 h, sTRAIL was higher for PostCond vs Controls (46.4 ± 30.6 vs 32.9 ± 23.4, p = 0.031), was negatively related to AUCTnT [B = -0.09, 95 % CI (-0.15 to -0.30), p = 0.005] and was positively related to both in-hospital [B = 0.10, 95 % CI (0.02-0.17), p = 0.018], and follow-up LVEF [B = 0.21, 95 % (0.10-0.32), p = 0.001]. No significant relationship was found for Controls. On multivariate analysis, PostCond was an independent predictor for sTRAIL [B = 12.13 95 % CI (0.40-23.87), p = 0.043]. In conclusion, PostCond positively influenced sTRAIL, which was related to reduced infarct size and better LVEF. Further studies are needed to understand potential mechanisms elicited by PostCond in infarct size reduction.
journal_name
Heart Vesselsjournal_title
Heart and vesselsauthors
Luz A,Santos M,Magalhães R,Oliveira JC,Pacheco A,Silveira J,Cabral S,Torres S,Leite-Moreira AF,Carvalho Hdoi
10.1007/s00380-016-0851-9subject
Has Abstractpub_date
2017-02-01 00:00:00pages
117-125issue
2eissn
0910-8327issn
1615-2573pii
10.1007/s00380-016-0851-9journal_volume
32pub_type
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