Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.10/1842
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dc.contributor.authorFaustino, M-
dc.contributor.authorBaptista, S-
dc.contributor.authorFreitas, A-
dc.contributor.authorMonteiro, C-
dc.contributor.authorLeal, P-
dc.contributor.authorNédio, M-
dc.contributor.authorAntunes, C-
dc.contributor.authorAbreu, PF-
dc.contributor.authorGil, V-
dc.contributor.authorMorais, C-
dc.date.accessioned2017-04-12T09:14:03Z-
dc.date.available2017-04-12T09:14:03Z-
dc.date.issued2016-
dc.identifier.citationJ Interv Cardiol. 2016 Apr;29(2):137-45pt_PT
dc.identifier.issn1540-8183-
dc.identifier.urihttp://hdl.handle.net/10400.10/1842-
dc.description.abstractBACKGROUND: This study aims to evaluate the relationship between IMR (Index of Microcirculatory Resistance) and the echocardiographic evolution of left ventricular (LV) systolic and diastolic performance after ST-elevation acute myocardial infarction (STEMI), undergoing primary angioplasty (P-PCI). METHODS: IMR was evaluated immediately after P-PCI. Echocardiograms were performed within the first 24 hours (Echo1) and at 3 months (Echo2): LV volumes, ejection fraction (LVEF), wall motion score index (WMSI), E/é ratio, global longitudinal strain (GLS), and left atrial volume were measured. RESULTS: Forty STEMI patients were divided in 2 groups according to median IMR: Group 1 (IMR < 26), with less microvascular dysfunction, and Group 2 (IMR > = 26), with more microvascular dysfunction. In Echo1 GLS was significantly better in Group 1 (-14.9 vs. -12.9 in Group 2, P = 0.005). However, there were no significant differences between the two groups in LV systolic volume, LVEF and WMS. Between Echo1 and Echo2, there were significant improvements in LVEF (0.48 ± 0.06 vs. 0.55 ± 0.06, P < 0.0001), GLS (-14.9 ± 1.3 vs. -17.3 ± 7.6, P = 0.001), and E/é ratio (9.3 ± 3.4 vs. 8.2 ± 2.0, P = 0.037) in Group 1, but not in Group 2: LVEF (0.49 ± 0.06 vs. 0.50 ± 0.05, P = 0.47), GLS (-12.9 ± 2.4 vs. -14.4 ± 3.2, P = 0.052), and E/é ratio (8.8 ± 2.4 vs. 10.0 ± 4.7, P = 0.18). WMSI improved significantly more in Group 1 (reduction of -17.1% vs. -6.8% in Group 2, P = 0.015). CONCLUSION: Lower IMR was associated with better myocardial GLS acutely after STEMI, and with a significantly higher recovery of the LVEF, WMSI, E/E' ratio and GLS, suggesting that IMR is an early marker of cardiac recovery, after acute myocardial infarction.pt_PT
dc.language.isoengpt_PT
dc.publisherWileypt_PT
dc.rightsrestrictedAccesspt_PT
dc.subjectMyocardial infarctionpt_PT
dc.subjectAngioplastypt_PT
dc.subjectEchocardiographypt_PT
dc.titleThe Index of Microcirculatory Resistance as a Predictor of Echocardiographic Left Ventricular Performance Recovery in Patients With ST-Elevation Acute Myocardial Infarction Undergoing Successful Primary Angioplasty.pt_PT
dc.typearticlept_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
degois.publication.firstPage137pt_PT
degois.publication.lastPage145pt_PT
degois.publication.locationHobokenpt_PT
degois.publication.titleJournal of Interventional Cardiologypt_PT
dc.peerreviewedyespt_PT
degois.publication.volume29pt_PT
dc.identifier.doi10.1111/joic.12278pt_PT
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