ABC | Volume 113, Nº5, November 2019

Original Article Costa-Mateu et al. Catheterization with one-catheter strategy Arq Bras Cardiol. 2019; 113(5):960-968 Figure 2 – Study Flowchart. Inclusion – Invasive coronary angiography – Right radial access – > 18 years Exclusion – Abnormal Allen’s test – Brachial arteriovenous fistula in right upper arm – Nedd to use 4Fr catheters – Previous coronary artery by-pass sugery – Ventriculography, aortography or coronary angioplasty – Iodin ated contrast allergy – Women with possibility of being pregnant – Inclusion in other clinical trials or registries 1,823 Patients Total procedures (n = 1,953) One-catheter strategy (n = 252) Two-catheter strategy (n = 1,701) Primary Endpoint: Volume of iodinated contrast Secondary Endpoint: Radial spasm, Fluoroscopytime, Dose-area product, Air-kerma, Direct economic costs Table 1 – Baseline clinical characteristics Total procedures (n = 1,953) One-catheter strategy (n = 252) Two-catheter strategy (n = 1,701) p-value Age, (years), mean (SD) 67.3 (11.8) 67.5 (12.1) 67.2 (11.6) 0.695 Female gender, n (%) 611 (31.3%) 82 (32.5%) 529 (31.1%) 0.645 BMI, (kg/m 2 ), mean (SD) 28.0 (5.3) 28.1 (4.8) 28.0 (5.4) 0.657 Hypertension, n (%) 1443 (73.9%) 187 (74.2%) 1256 (73.8%) 0.858 Dyslipidemia, n (%) 1096 (56.1%) 142 (56.3%) 954 (56.1%) 0.861 Diabetes mellitus, n (%) 701 (35.9%) 98 (38.9%) 603 (35.4%) 0.288 Smoking 0.539 Non-smoker, n (%) 304 (15.6%) 39 (15.5%) 265 (15.6%) Previous smoker, n (%) 486 (24.9%) 56 (22.2%) 430 (25.3%) Current smoker, n (%) 1160 (59.5%) 157 (62.3%) 1003 (59.1%) Previous MI, n (%) 246 (12.6%) 27 (10.7%) 219 (12.9%) 0.426 Previous PCI, n (%) 318 (16.3%) 40 (15.9%) 278 (16.3%) 0.675 Family history of ischemic heart disease, n (%) 75 (3.8%) 11 (4.4%) 64 (3.8%) 0.669 Previous stroke, n (%) 65 (3.3%) 6 (2.4%) 59 (3.5%) 0.457 Chronic kidney disease, n (%) 223 (11.4%) 33 (13.1%) 190 (11.2%) 0.468 Creatinine (mg/dL), mean (SD) 1.15 (0.93) 1.07 (0.59) 0.647 SD: standard deviation; BMI: body mass index; MI: myocardial infarction; PCI: percutaneous coronary intervention. 963