Effects of microvascular dysfunction on myocardial fractional flow reserve after percutaneous coronary intervention in patients with acute myocardial infarction

2002 ◽  
Vol 57 (4) ◽  
pp. 452-459 ◽  
Author(s):  
Koichi Tamita ◽  
Takashi Akasaka ◽  
Tsutomu Takagi ◽  
Atsushi Yamamuro ◽  
Kenji Yamabe ◽  
...  
2016 ◽  
Vol 39 (1) ◽  
pp. 25 ◽  
Author(s):  
Jiancheng Xiu ◽  
Gangbin Chen ◽  
Hua Zheng ◽  
Yuegang Wang ◽  
Haibin Chen ◽  
...  

Purpose: Fractional flow reserve (FFR)-guided percutaneous coronary intervention (PCI) is used to assess the need for angioplasty in vessels with intermediate blockages. The treatment outcomes of FFR-guided vs. conventional angiography-guided PCI were evaluated in patients with multi-vessel coronary artery disease (CAD). Methods: Prospective and retrospective studies comparing FFR-guided vs. angiography-guided PCI in patients with multi-vessel CAD were identified from medical databases by two independent reviewers using the terms “percutaneous coronary intervention, fractional flow reserve, angiography, coronary heart disease, major adverse cardiac events (MACE) and myocardial infarction”. The primary outcome was the number of stents placed, and the secondary outcomes were procedure time, mortality, myocardial infarction (MI) and MACE rates. Results: Seven studies (three retrospective and four prospective), which included 49,517 patients, were included in this review. A total of 4,755 patients underwent FFR, while 44,697 received angiography-guided PCI. The mean patient age ranged from 58 to 71.7 years. The average number of stents used in FFR patients ranged from 0.3-1.9, and in angiography-guided PCI patients ranged from 0.7-2.7. Analysis indicated there was a greater number of stents placed in the angiography-guided group compared with the FFR group (pooled difference in means: -0.64, 95% confidence interval [CI]: -0.81 to -0.47, P < 0.001). There were no differences in the secondary outcomes between the two groups. Conclusions: Both procedures produce similar clinical outcomes, but the fewer number of stents used with FFR may have clinical as was as cost implications.


2020 ◽  
Vol 9 (24) ◽  
Author(s):  
Stephane Fournier ◽  
Carlos Collet ◽  
Panagiotis Xaplanteris ◽  
Frederik M. Zimmermann ◽  
Gabor G. Toth ◽  
...  

Background Global fractional flow reserve (FFR) (ie, the sum of the FFR values in the 3 major coronary arteries) is a physiologic correlate of global atherosclerotic burden. The objective of the present study was to investigate the value of global FFR in predicting long‐term clinical outcome of patients with stable coronary artery disease but no ischemia‐inducing stenosis. Methods and Results We studied major adverse cardiovascular events (MACEs: all‐cause death, myocardial infarction, and any revascularization) after 5 years in 1122 patients without significant stenosis (all FFR >0.80; n=275) or with at least 1 significant stenosis successfully treated by percutaneous coronary intervention (ie, post–percutaneous coronary intervention FFR >0.80; n=847). The patients were stratified into low, mid, or high tertiles of global FFR (≤2.80, 2.80–2.88, and ≥2.88). Patients in the lowest tertile of global FFR showed the highest 5‐year MACE rate compared with those in the mid or high tertile of global FFR (27.5% versus 22.0% and 20.9%, respectively; log‐rank P =0.040). The higher 5‐year MACE rate was mainly driven by a higher rate of revascularization in the low global FFR group (16.4% versus 11.3% and 11.8%, respectively; log‐rank P =0.038). In a multivariable model, an increase in global FFR of 0.1 unit was associated with a significant reduction in the rates of MACE (hazard ratio [HR], 0.988; 95% CI, 0.977–0.998; P =0.023), myocardial infarction (HR, 0.982; 95% CI, 0.966–0.998; P =0.032), and revascularization (HR, 0.985; 95% CI, 0.972–0.999; P =0.040). Conclusions Even in the absence of ischemia‐producing stenoses, patients with a low global FFR, physiologic correlate of global atherosclerotic burden, present a higher risk of MACE at 5‐year follow‐up.


2020 ◽  
Vol 6 (3) ◽  
pp. 186-192 ◽  
Author(s):  
David S Wald ◽  
Steven Hadyanto ◽  
Jonathan P Bestwick

Abstract Aims We aimed to quantify the effect of preventive percutaneous coronary intervention (PCI to non-infarct arteries) on cardiac death and non-fatal myocardial infarction (MI) in patients with ST-elevation myocardial infarction (STEMI) according to whether the decision to carry out preventive PCI was based on angiographic visual inspection (AVI alone) or AVI plus fractional flow reserve (FFR) if AVI showed significant stenosis (AVI plus FFR). Methods and results Randomized trials comparing preventive PCI with no preventive PCI in STEMI without shock were identified by a systematic literature search and categorized according to whether they used AVI alone or AVI plus FFR to select patients for preventive PCI. Random effects meta-analyses and tests of heterogeneity were used to compare the two categories in respect of cardiac death and MI as a combined outcome and individually. Eleven eligible trials were identified. For cardiac death and MI, the relative risk estimates for AVI alone vs. AVI plus FFR were 0.39 (0.25–0.61) and 0.85 (0.57–1.28), respectively (P = 0.01 for difference), for cardiac death, alone the estimates were 0.36 (0.19–0.71) and 0.79 (0.36–1.77), respectively (P = 0.15 for difference), and for MI alone, 0.41 (0.23–0.73) and 0.98 (0.62–1.56), respectively (P = 0.04 for difference). Conclusion In preventive PCI among STEMI patients, AVI alone achieves a ∼60% reduction in cardiac death and MI but selecting patients using FFR in AVI positive patients loses much of the benefit. Angiographic visual inspection is best used without FFR in this group of patients.


Heart ◽  
2015 ◽  
Vol 101 (6) ◽  
pp. 455-462 ◽  
Author(s):  
Dongfeng Zhang ◽  
Shuzheng Lv ◽  
Xiantao Song ◽  
Fei Yuan ◽  
Feng Xu ◽  
...  

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