title: Relationship between R-wave peak time and no-reflow in ST elevation myocardial infarction treated with a primary percutaneous coronary intervention.
abstract: Coronary no-reflow (NR) is observed in nearly half of ST segment elevation myocardial infarction (STEMI) patients who undergo a primary percutaneous coronary intervention (pPCI) despite epicardial coronary vessel patency. Several methods used to define NR include thrombolysis in myocardial infarction grade, corrected thrombolysis in myocardial infarction frame count, myocardial blush grade, ST-segment resolution, contrast echocardiography, and MRI. The aim of our study was to evaluate the relationship between NR and R-wave peak time (RWPT) measured from infarct-related artery leads METHOD: We enrolled 282 consecutive STEMI patients treated with pPCI in Kafkas University Hospital from January 2014 to January 2015. After exclusion, the remaining 233 patients were included in the study population RESULTS: Patients were divided into two groups according to the development of NR. We observed that increased preprocedural (31 (27-37) vs 27 (21-30) p<0,001) and postprocedural RWPT(35±7 vs 22±6 p<0,001) was associated with the development of NR and preprocedural RWPT(OR: 1.254 95% CI: 1.104-1.425 p<0,001) was found to be independent predictor of NR. The association between postprocedural RWPT and angiographic NR was statistically noninferior to that between ST-segment resolution % and NR(difference between area under curves: 0.0232, p= 0.38) CONCLUSION: the present study is the first to report a significant correlation between NR and RWPT in STEMI patients treated with primary pPCI.
authors.affiliation: aDepartment of Cardiology, Kafkas University Medical Faculty bDepartment of Cardiology, Kars Harakani State Hospital, Kars cDepartment of Cardiology, Yedikule Chest Diseases and Chest Surgery Education and Research Center, Istanbul dDepartment of Cardiology, Gaziemir State Hospital, İzmir eDepartment of Cardiology, Ağri State Hospital, Ağri fDepartment of Cardiology, Elaziğ Education and Research Hospital, Elazig, Turkey.
authors.forename: Metin
authors.initials: M
authors.lastname: Çağdaş
authors.forename: Süleyman
authors.initials: S
authors.lastname: Karakoyun
authors.forename: İbrahim
authors.initials: İ
authors.lastname: Rencüzoğullari
authors.forename: Yavuz
authors.initials: Y
authors.lastname: Karabağ
authors.forename: Mahmut
authors.initials: M
authors.lastname: Yesin
authors.forename: Mahmut
authors.initials: M
authors.lastname: Uluganyan
authors.forename: Mustafa O
authors.initials: MO
authors.lastname: Gürsoy
authors.forename: İnanç
authors.initials: İ
authors.lastname: Artaç
authors.forename: Doğan
authors.initials: D
authors.lastname: İliş
authors.forename: Süleyman Ç
authors.initials: SÇ
authors.lastname: Efe
authors.forename: Onur
authors.initials: O
authors.lastname: Taşar
mesh_terms: D017023:Coronary Angiography; D003326:Coronary Circulation / Q000502:physiology*; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D054318:No-Reflow Phenomenon / Q000175:diagnosis / Q000503:physiopathology; D062645:Percutaneous Coronary Intervention; D011379:Prognosis; D012189:Retrospective Studies; D000072657:ST Elevation Myocardial Infarction / Q000175:diagnosis / Q000503:physiopathology* / Q000601:surgery