Association of pre-percutaneous coronary flow grade and clinical outcomes in patients with non-ST-segment elevation myocardial infarction: Data from the Korea Acute Myocardial Infarction Registry

Yong Hoon Kim, Ae Young Her, Myung Ho Jeong, Byeong Keuk Kim, Sung Jin Hong, Seunghwan Kim, Chul Min Ahn, Jung Sun Kim, Young Guk Ko, Donghoon Choi, Myeong Ki Hong, Yangsoo Jang

Research output: Contribution to journalArticlepeer-review

Abstract

Because of a paucity of published data, we compared the 2-year major clinical outcomes between pre-percutaneous coronary intervention (pre-PCI) thrombolysis in myocardial infarction (TIMI) flow grade 0/1 (pre-TIMI flow grade [pre-TIMI] 0/1) group and pre-PCI TIMI flow grade 2/3 (pre-TIMI 2/3) group in patients with non-ST-segment elevation myocardial infarction (NSTEMI) who underwent successful implantation of newer-generation drug-eluting stent.A total of 7506 NSTEMI patients were divided into 2 groups: pre-TIMI 0/1 group (n = 3157) and pre-TIMI 2/3 group (n = 4349). The primary outcome was major adverse cardiac events defined as all-cause death, recurrent myocardial infarction, or any repeat revascularization. The secondary outcome was stent thrombosis (ST).After propensity score-matched (PSM) analysis, 2 PSM groups (2473 pairs, n = 4946, C-statistic = 0.684) were generated. Major adverse cardiac events (hazard ration [HR], 1.294; 95% confidence interval [CI]: 1.065-1.572; P =.009), all-cause death (HR, 1.559, P =.003), cardiac death (HR: 1.641, P =.005), and all-cause death or MI (HR: 1.531, P =.001) rates were significantly higher in the pre-TIMI 0/1 group than in the pre-TIMI 2/3 group. Moreover, these differences were more prominent during the first 1 month after the index PCI. However, the cumulative incidences of recurrent myocardial infarction, any revascularization, and ST were similar between the 2 groups.Among a contemporary cohort of NSTEMI, these data suggest that the presence of a pre-PCI patency of the infarct-related artery showed better mortality reduction capacity than those with a lack of patency.

Original languageEnglish
Pages (from-to)E26947
JournalMedicine (United States)
Volume100
Issue number32
DOIs
Publication statusPublished - 2021 Aug 13

Bibliographical note

Publisher Copyright:
© 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

All Science Journal Classification (ASJC) codes

  • General Medicine

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