Effect of myocardial perfusion on myocardial viability after percutaneous coronary intervention for acute ST-segment elevation myocardial infarction
Zhang Qiang
Liu Ke
Niu Hongmei
Zhang Wei
Ma Lijuan
Han Jiru
Abstract：Objective To analyze the effect of myocardial perfusion on myocardial viability after percutaneous coronary intervention(PCI) in patients with acute ST-segment elevation myocardial infarction (STEMI).Methods A total of 63 acute STEMI patients who had PCI from March 2016 to March 2017 in Handan First Hospital were divided into group A[thrombolysis in myocardial infarction myocardial perfusion(TMP) grade 0-1,n =31] and group B(TMP grade 2-3,n =32).Myocardial infarction area(MIA) and myocardial viability were assessed by myocardial perfusion imaging 1 and 12 weeks after PCI.Location and number of coronary artery disease were analyzed.Results One-week MIA ratio assessed by resting myocardial perfusion imaging,1-week MIA ratio assessed after taking nitroglycerin and 12-week MIA ratio assessed by resting myocardial perfusion imaging in group B were significantly lower than those in group A[(26 ± 13)％ vs(39 ± 16)％,(20 ± 10)％ vs (34 ± 11) ％,(18 ± 13) ％ vs (37 ± 10) ％].Viable myocardium ratio in group B was significantly higher than that in group A [(5.43 ± 0.32) ％ vs (4.12 ± 0.15) ％] (P ＜ 0.05).Single vessel disease ratio and right coronary artery disease ratio in group B were significantly higher than those in group A[68.8％ (22/32) vs 35.5％ (11/31),46.9％ (15/32) vs 25.8％ (8/31)];multi-vessel disease ratio and left anterior descending branch disease ratio in group B were significantly lower than those in group A [9.4％ (3/32) vs 29.0％ (9/31),25.0％ (8/32) vs 51.6％ (16/31)] (P ＜ 0.05).Conclusion STEMI patients with TMP grade 2-3 show good myocardial viability after PCI.
Keywords：Acute ST-segment elevation myocardial infarctionPercutaneous coronary interventionMyocardial perfusionMyocardial viability
Publication Date：2018-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：4( 810-813 )