Clinical implication of QFR in patients with ST-segment elevation myocardial infarction after drug-eluting stent implantation

The feasibility and prognostic value of quantitative flow ratio (QFR) after percutaneous coronary intervention (PCI) in ST-segment elevation myocardial infarction (STEMI) patients have not been assessed. The aim of this study was to investigate the prognostic utility of post-PCI QFR to predict outco...

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Bibliographic Details
Published in:The International Journal of Cardiovascular Imaging 2021-03, Vol.37 (3), p.755-766
Main Authors: Tang, Jiani, Chu, Jiapeng, Hou, Hanjing, Lai, Yan, Tu, Shengxian, Chen, Fei, Yao, Yian, Ye, Zi, Gao, Yanhua, Mao, Yu, Zhuang, Shaowei, Liu, Xuebo
Format: Article
Language:English
Subjects:
Angiography
Blood vessels
Cardiac Imaging
Cardiology
Drug delivery
Heart attacks
Imaging
Implants
Lesions
Medicine
Medicine & Public Health
Microvasculature
Myocardial infarction
Original Paper
Radiology
Segments
Stents
Surgical implants
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Summary:The feasibility and prognostic value of quantitative flow ratio (QFR) after percutaneous coronary intervention (PCI) in ST-segment elevation myocardial infarction (STEMI) patients have not been assessed. The aim of this study was to investigate the prognostic utility of post-PCI QFR to predict outcomes in STEMI and determine the influence of functional results, in both culprit and nonculprit lesions, after PCI. Patients undergoing PCI of culprit lesions and receiving staged procedures of nonculprit lesions after 7 days were enrolled from 2 centers and underwent post-PCI QFR. The primary outcome was the vessel-oriented composite endpoints (VOCEs), defined as vessel-related cardiovascular death, vessel-related myocardial infarction, and target vessel revascularization. Four hundred fifteen vessels (186 culprit lesions and 219 nonculprit lesions) in 186 patients were analyzed. Measured at staged PCI, the post-PCI QFR of culprit lesions was significantly lower than that of nonculprit lesions (0.92 ± 0.10 versus 0.95 ± 0.08, p 
ISSN:1569-5794
1573-0743
1875-8312
DOI:10.1007/s10554-020-02068-0