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Background: The RAD-MATRIX trial reported a large operator radiation exposure variability in right radial percutaneous coronary procedures. The reasons of these differences are not well understood. Our aim was to appraise the determinants of operator radiation exposure during coronary right transradial procedures.
Methods: Patient arrangement during transradial intervention was investigated across operators involved in the RAD-MATRIX trial. Operator radiation exposure was analyzed according to the position of the patient right arm (close or far from the body) and in relation to the size of the upper leaded glass.
Results: Among the 14 operators who agreed to participate, there was a greater than 10-fold difference in radiation dose at thorax level (from 21.5 to 267 μSv) that persisted after normalization by dose-area product (from 0.35 to 3.5 μSv/Gy*cm). Among the operators who positioned the instrumented right arm far from the body (110.4 μSv, interquartile range 71.5-146.5 μSv), thorax dose was greater than that in those who placed the instrumented arm close to the right leg (46.1 μSv, 31.3-56.8 μSv, P = .02). This difference persisted after normalization by dose-area product (P = .028). The use of a smaller full glass shield was also associated with a higher radiation exposure compared with a larger composite shield (147.5 and 60 μSv, respectively, P = .016).
Conclusions: In the context of the biggest radiation study conducted in patients undergoing transradial catheterization, the instrumented right arm arrangement close to the leg and greater upper leaded shield dimensions were associated with a lower operator radiation exposure. Our findings emphasize the importance of implementing simple preventive measures to mitigate the extra risks of radiation exposure with right radial as compared with femoral access.
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http://dx.doi.org/10.1016/j.ahj.2017.10.014 | DOI Listing |
Ochsner J
January 2024
Department of Anesthesiology, Super Specialty, MGM Medical College, Indore, India.
Knee osteoarthritis is a chronic degenerative disease associated with pain and decreased mobility that affects advanced-age individuals, thus causing further debilitation. Radiofrequency ablation can benefit patients who are not ideal candidates for surgical intervention and for whom conservative management has been unsatisfactory. Currently, radiofrequency ablation is performed using either ultrasonography or fluoroscopy.
View Article and Find Full Text PDFFront Public Health
December 2024
Department of Public Health, School of Public Health in Bytom Medical University of Silesia in Katowice, Piekarska, Poland.
In 2019, ozone was responsible for about 365,000 premature deaths worldwide (6.21 million healthy life years lost) and acute ozone exposure led to 16,800 premature deaths in the European Union. The aim of the study was to estimate the influence of NO, NO, wind direction (WD) wind speed (WS), air temperature (TA), and total radiation (GLR) on ozone concentration levels.
View Article and Find Full Text PDFCureus
November 2024
Radiology, Kawasaki Municipal Hospital, Kawasaki, JPN.
We experienced a case of a patient with a history of pacemaker implantation who was found to have lung cancer just behind the pacemaker. She was an 80-year-old woman with a history of valve replacement, pacemaker implantation, and sarcoidosis. Computed tomography showed a ground-glass opacity of 1.
View Article and Find Full Text PDFStudy Objectives: To evaluate the capability and accuracy of magnetocardiography (MCG) to identify patients with ischemic chest pain from those with non-ischemic pain and to verify normalcy in the MCG in healthy subjects.
Design: We studied 133 patients (mean age 59 ± 14 years, 69 % male) with chronic or acute chest pain syndrome and 63 healthy subjects (mean age 41.7 ± 12.
J Nanobiotechnology
December 2024
School of Life and Environmental Sciences, Shaoxing University, Shaoxing, 312000, Zhejiang, China.
Anthracycline doxorubicin (DOX) remains the first-line chemotherapeutic drug for the efficient treatment of breast cancer, but its severe cardiotoxicity limits its long-term application in clinical tumor chemotherapy. Until now, the pathogenesis mechanism of DOX-induced cardiotoxicity (DIC) is still not fully understood. According to current studies, the oxidative stress caused by the imbalance of reactive oxygen species (ROS) and reactive nitrogen species (RNS) production and mitochondrial dysfunction in myocardial cells are closely related to DIC.
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