![]() ![]() In this study, 1,67,494 consecutive patients who underwent coronary angiography in our clinical center between 20 were assessed by TIMI flow grade and excluded if they had any known or documented ischemic heart disease (previous or current infarction, revascularization, and ≥20% diameter coronary stenosis), coronary ectasia, coronary artery spasm, coronary myocardial bridge, valvular heart disease (more than mild), cardiomyopathy, heart failure, and malignancy, as well as unavailable angiographic or clinical data. In the present study, it was sought to investigate the clinical feature and prognosis of the patients with CSFP. Moreover, the clinical profile and outcome of the patients were evaluated, and the prognostic factor was explored using proportional hazards. Clinical center and angiographic core laboratory were blind to patient data for the assessment of coronary angiograph using corrected thrombolysis in myocardial infarction (TIMI) frame count (CTFC) in this study. in 1972, many studies focused on the risk factors of CSFP have been reported however, there is a paucity of specific data on the clinical profile and outcome of these patients. Since it was firstly described by Tambe et al. The coronary slow flow phenomenon (CSFP) is characterized by the slow antegrade passage of dye through one or more vessels of the coronary tree without stenosis during coronary angiography. CSFP affects predominantly patients at middle age and above but can occur in any age group CSFP should be more concerned, particularly in patients >50 years old with hypertension and dyslipidemia. All the rates of agreement between two teams in evaluating whether normal flow (CTFC ≤ 27 frames) or slow flow (CTFC > 27 frames) were moderate (0.40 50 years (hazard ratio (HR) = 2.2, 95% CI: 1.0 to 4.9, and ), hypertension (HR = 2.1, 95% CI: 1.1 to 4.2, and ), and dyslipidemia (HR = 2.0, 95% CI: 1.0 to 3.9, and ). Two hundred patients (46.6%) out of 429 patients had a history of hypertension, 72 (16.8%) had diabetes mellitus, and 222 (51.7%) had dyslipidemia. The study cohort consisted of 429 patients (294 men, 68.5%), aged from 30 to 78 years (mean, 54 years). Two teams (clinical center and core lab) were blind to patient data for the assessment of coronary angiograph using corrected thrombolysis in myocardial infarction (TIMI) frame count (CTFC). We investigated a cohort of 429 patients who fulfilled the criteria for CSFP to explore the clinical feature, outcome, and risk factor of prognosis. The coronary slow flow phenomenon (CSFP) is a poorly recognized clinical entity characterized by delayed distal vessel opacification in the absence of epicardial coronary stenosis and presently lack of specific data on the clinical profile and outcome. ![]()
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