title: The Relationship Between Lymphocyte-to-Monocyte Ratio and Bare-Metal Stent In-Stent Restenosis in Patients With Stable Coronary Artery Disease.
abstract: In-stent restenosis (ISR) is a common clinical problem in patients with coronary artery disease treated with percutaneous coronary intervention. Inflammatory process plays a pivotal role in the development of ISR. Both lymphocytes and monocytes are associated with inflammatory status. Recently, it has been shown that the lymphocyte-to-monocyte ratio (LMR) is a novel inflammatory marker. We aimed to investigate the association of serum LMR levels and ISR in patients undergoing bare-metal stent (BMS) implantation. The study included 273 patients (aged 61 ± 11 years, 66.5% men) with a history of BMS implantation and a further control coronary angiography due to stable angina pectoris. Patients were divided into 2 groups: patients with and without ISR. The LMR levels were significantly lower in patients with ISR than in those without ISR (2.50 ± 0.95 vs 3.87 ± 1.51, respectively, P < .001). On multivariate logistic regression analysis, the LMR was independently associated with ISR (odds ratio [OR]: 0.310, 95% confidence interval: 0.166-0.579, P < .001) together with high-sensitivity C-reactive protein (OR: 1.244, P = .008), reason for stent implantation (OR: 6.566, P = .003), stent diameter (OR: 0.015, P < .001), and stent length (OR: 1.137, P = .007). In conclusion, LMR levels are inversely related to ISR in patients treated with BMS implantation.
authors.affiliation: 1 Department of Cardiology, Ankara Education and Research Hospital, Ankara, Turkey.
authors.forename: Sani Namik
authors.initials: SN
authors.lastname: Murat
authors.affiliation: 1 Department of Cardiology, Ankara Education and Research Hospital, Ankara, Turkey.
authors.forename: Mikail
authors.initials: M
authors.lastname: Yarlioglues
authors.affiliation: 1 Department of Cardiology, Ankara Education and Research Hospital, Ankara, Turkey.
authors.forename: Ibrahim Etem
authors.initials: IE
authors.lastname: Celik
authors.affiliation: 1 Department of Cardiology, Ankara Education and Research Hospital, Ankara, Turkey.
authors.forename: Alparslan
authors.initials: A
authors.lastname: Kurtul
authors.affiliation: 1 Department of Cardiology, Ankara Education and Research Hospital, Ankara, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Duran
authors.affiliation: 1 Department of Cardiology, Ankara Education and Research Hospital, Ankara, Turkey.
authors.forename: Alparslan
authors.initials: A
authors.lastname: Kilic
authors.affiliation: 1 Department of Cardiology, Ankara Education and Research Hospital, Ankara, Turkey.
authors.forename: Fatih
authors.initials: F
authors.lastname: Oksuz
mesh_terms: D000368:Aged; D002097:C-Reactive Protein / Q000032:analysis; D003324:Coronary Artery Disease / Q000097:blood / Q000150:complications*; D023903:Coronary Restenosis / Q000097:blood* / Q000175:diagnosis / Q000209:etiology; D005260:Female; D006801:Humans; D007249:Inflammation; D007958:Leukocyte Count; D008214:Lymphocytes / Q000166:cytology; D008297:Male; D008875:Middle Aged; D009000:Monocytes / Q000166:cytology; D016017:Odds Ratio; D000069322:Self Expandable Metallic Stents / Q000009:adverse effects*
chemical_list: D002097:C-Reactive Protein
keywords: coronary artery disease; in-stent restenosis; lymphocyte-to-monocyte ratio