title: Association of Meteorological Variables and Coronary Blood Flow.
abstract: We aimed to assess the impact of meteorological variables on coronary blood flow (CBF). Coronary blood flow was evaluated using the thrombolysis in myocardial infarction frame count (TFC). The association of CBF with meteorological parameters such as temperature, relative humidity, total solar radiation, atmospheric pressure, wind velocity, and total sunshine duration were investigated as well as demographic, clinical, and laboratory characteristics. Assessment of 1206 patients (median age = 53 years, 723 females) revealed the presence of slow coronary flow (SCF) in 196 patients. Daily maximum temperature [odds ratio = 0.951, 95% confidence interval = 0.916-0.986, P = .007] was the only independent predictor of the presence of SCF, whereas systolic blood pressure (β = -0.139, P = .026), hematocrit level (β = 0.128, P = .044), and daily maximum temperature (β = -1.479, P = .049) were independent predictors of log10 (mean TFC). Findings of the present study suggest a role of meteorological parameters in CBF regulation.
authors.affiliation: Department of Cardiology, Harran University School of Medicine, Sanliurfa, Turkey ghcayildiz@yahoo.com.
authors.forename: Ali
authors.initials: A
authors.lastname: Yildiz
authors.affiliation: Department of Cardiology, Harran University School of Medicine, Sanliurfa, Turkey.
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Sezen
authors.affiliation: Department of Cardiology, Harran University School of Medicine, Sanliurfa, Turkey.
authors.forename: Ozgur
authors.initials: O
authors.lastname: Gunebakmaz
authors.affiliation: Department of Cardiology, Harran University School of Medicine, Sanliurfa, Turkey.
authors.forename: Zekeriya
authors.initials: Z
authors.lastname: Kaya
authors.affiliation: Department of Cardiology, Harran University School of Medicine, Sanliurfa, Turkey.
authors.forename: Ibrahim Halil
authors.initials: IH
authors.lastname: Altiparmak
authors.affiliation: Department of Cardiology, Harran University School of Medicine, Sanliurfa, Turkey.
authors.forename: Emre
authors.initials: E
authors.lastname: Erkus
authors.affiliation: Department of Cardiology, Harran University School of Medicine, Sanliurfa, Turkey.
authors.forename: Recep
authors.initials: R
authors.lastname: Demirbag
authors.affiliation: Department of Cardiology, Harran University School of Medicine, Sanliurfa, Turkey.
authors.forename: Remzi
authors.initials: R
authors.lastname: Yilmaz
mesh_terms: D000368:Aged; D001783:Blood Flow Velocity; D001794:Blood Pressure; D003326:Coronary Circulation; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008685:Meteorological Concepts; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology*; D012189:Retrospective Studies
keywords: TIMI frame count; atherosclerosis; cardiology; coronary blood flow; meteorological variables; slow coronary flow