Yapay Zeka Hızlı Bakış & Çıkarımlar
AI InsightIncreasedhs-CRP levels (≥3 mg/L) are an indication for urgent PCI whereas normal levels (<3 mg/L) are an indication for delayed PCI treatment.Patients with identical FFR values could require different treatment.
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Özet
Objective: It remains controversial whether patients with fractional flow reserve (FFR) values of 0.75–0.80 (gray-zone) should be treated withpercutaneous coronary intervention (PCI). This study aimed to evaluate the prediction of high-sensitivity C-reactive protein (hs-CRP) levels toguide treatment selection in gray-zone patients.Methods: This prospective interventional trial was conducted between January 2015 and March 2016. A total of 785 patients with stable anginaand single-vessel stenosis with moderate coronary lesions were admitted to hospital in this period. After measurement of hs-CRP levels,coronary angiography, and FFR, gray-zone patients (n=308) were included in the study and were divided into four groups on the basis of a cutoffhs-CRP level of 3 mg/L and then on the basis of whether they underwent PCI or not. Patients in groups I (≥3 mg/L, n=70) and III (<3 mg/L, n=84)underwent PCI, whereas those in groups II (≥3 mg/L, n=70) and IV (<3 mg/L, n=84) were administered only drugs. Major adverse clinical events(MACEs) included cardiac death, nonfatal myocardial infarction (MI), target vessel revascularization (TVR), and PCI or coronary artery bypassgrafting (CABG). These parameters were also evaluated during follow-up.Results: The total Kaplan-Meier curves showed macrodistribution differences among the four groups (p<0.05). There was a significantly increasedMACE incidence in group II compared with group I or IV (p=0.039 or 0.006, respectively), and an increased incidence in group I comparedwith group III (p=0.028). However, there were no differences in MACE incidence between groups III and IV (p=0.095) despite the fact thatthese patients received different treatments.Conclusion: Among FFR gray-zone patients, hs-CRP level was a predictor of MACE and risk stratification could guide treatment selection. Increasedhs-CRP levels (≥3 mg/L) are an indication for urgent PCI whereas normal levels (<3 mg/L) are an indication for delayed PCI treatment.Patients with identical FFR values could require different treatment.