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The Role of Index of Microcirculatory Resistance in Left Anterior Descending Artery ST Segment Elevation Myocardial Infarction Patients after Primary Percutaneous Coronary Intervention

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dc.contributor.authorChoi, SH-
dc.contributor.authorAhn, SG-
dc.contributor.authorYoon, MH-
dc.contributor.authorSeo, KW-
dc.contributor.authorLee, KJ-
dc.contributor.authorKwon, SW-
dc.contributor.authorPark, SD-
dc.contributor.authorWoo, SI-
dc.date.accessioned2024-06-19T07:07:06Z-
dc.date.available2024-06-19T07:07:06Z-
dc.date.issued2024-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/32548-
dc.description.abstractBackground: Our aim was to assess the relationship of the index of microvascular resistance (IMR) in left anterior descending (LAD) artery involved STEMI patients. Methods: Data of 316 STEMI patients who had undergone primary percutaneous coronary intervention (PCI) were collected from three cardiovascular centers from 2005 to 2015. In total, 246 patients with LAD STEMI were enrolled for IMR evaluation. Patients were divided into two groups respective of the cut-off IMR value of 30. All-cause mortality, left ventricular function, improvement of systolic function, and cardiac biomarkers were analyzed and compared. Results: A total of 246 patients were enrolled. The number of patients in the IMR above 30 group was 93 and below 30 was 153. The mean ages for each group were 57.91 ± 11.99 and 54 ± 10.63, respectively. The peak creatinine kinase (CK) (3936.85 ± 2827.32 IU/L vs. 2218.08 ± 2310.41 IU/L, p < 0.001) and CKmb (336.15 ± 195.08 mg/mL vs. 231.53 ± 179.53 mg/mL, p < 0.001) levels were higher for an IMR above the 30 group. The left ventricular ejection fraction (LVEF) (44.57 ± 6.685% vs. 47.35 ± 8.17%, p = 0.006) and improvement of LVEF (2.81 ± 7.135% vs. 5.88 ± 7.65%, p = 0.004) was lower in the IMR above 30 group. All-cause mortality (7.5% vs. 1.3%, p = 0.012) was higher in the IMR above 30 group, and a Cox regression analysis showed that an IMR above 30 was a poor prognostic factor regarding all-cause mortality (HR: 5.151, 95% CI 1.062–24.987, p = 0.042) even after adjusting for classical clinical risk factors. Conclusions: An elevated IMR value represented larger infarct size, more severe LV dysfunction, and higher mortality in LAD STEMI patients after successful PCI.-
dc.language.isoen-
dc.titleThe Role of Index of Microcirculatory Resistance in Left Anterior Descending Artery ST Segment Elevation Myocardial Infarction Patients after Primary Percutaneous Coronary Intervention-
dc.typeArticle-
dc.identifier.pmid38610753-
dc.identifier.urlhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC11012837-
dc.subject.keywordall-cause mortality-
dc.subject.keywordIMR-
dc.subject.keywordSTEMI-
dc.contributor.affiliatedAuthorYoon, MH-
dc.contributor.affiliatedAuthorSeo, KW-
dc.type.localJournal Papers-
dc.identifier.doi10.3390/jcm13071989-
dc.citation.titleJournal of clinical medicine-
dc.citation.volume13-
dc.citation.number7-
dc.citation.date2024-
dc.citation.startPage1989-
dc.citation.endPage1989-
dc.identifier.bibliographicCitationJournal of clinical medicine, 13(7). : 1989-1989, 2024-
dc.identifier.eissn2077-0383-
dc.relation.journalidJ020770383-
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Cardiology
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