RESUMO
BACKGROUND: The use of adjunctive protective drapes placed on the patient protects the operating physician from scatter radiation during percutaneous coronary procedures (PCP). No data are available on the effect of these drapes for staff members' radio-protection. PURPOSE: To evaluate staff radiation exposure during PCP and the effect of adjunctive protective drapes on dose reduction. METHODS: The RADIANT study (NCT01974453) is a prospective, observational study evaluating operator radiation exposure during PCP using electronic dosimeter. In a sub-group of procedures all the staff members (II operator, nurse circulator and technologist) were also equipped with a dedicated electronic dosimeter. RESULTS: From a total of 2028 procedures included in the RADIANT study, staff members' doses were available for 122 procedures (67 coronarography and 55 percutaneous coronary interventions). Median fluoroscopy time was 306â¯s (Interquartile range 155-526â¯s) and the dose area product (DAP) was 18.0â¯Gy*cm2 (10-35.5â¯Gy*cm2). The radiation exposure was highest for the operating physician (6.7⯵Sv) and progressively lower for the nurse circulator (1.8⯵Sv), the II operator (1⯵Sv) and the technologist (0.7⯵Sv, pâ¯<â¯0.001). Protective pelvic drapes were used in 43 procedures and associated with a lower radiation exposure for all staff members (14⯵Sv vs 2.2⯵Sv for operating physician, pâ¯<â¯0.001, 1.7⯵Sv vs 0.49⯵Sv for II operator, pâ¯<â¯0.001, 2.16⯵Sv vs 0.93⯵Sv for nurse circulator, pâ¯=â¯0.02 and 0.85⯵Sv vs 0.39⯵Sv for technologist, pâ¯=â¯0.01). CONCLUSIONS: The use of adjunctive protective drapes is effective in reducing radiation protection for all staff members during PCP.