The purpose of this study was to assess the suitability of different radiation dosimetry methods and record radiation exposures during paediatric catheterization. Three methods of dosimetry were employed: thermoluminescent dosimetry (TLD), dose-area product and calculation of entrance surface dose from calibrated exposure factors. Examinations included bi-plane fluoroscopy, and cineangiography for diagnosis and treatment of congenital heart disease. The most suitable method of radiation dosimetry for cardiac catheterization is the use of calculated entrance dose or a dose-area product meter. Children were exposed to high levels of radiation during cardiac catheterization but there was a wide variation in radiation dosage. Careful consideration should be given to the suitability of radiation dosimetry for cardiac catheterization.
Objectives-To determine the benefits of using a single venous catheter and a single angiogram during catheter occlusion of a patent arterial duct with the Rashkind double umbrella compared with those of venous and arterial catheters and multiple angiograms. Design-Retrospective review of case notes. Patients-103 consecutive patients. The long sheath could not be advanced adequately in two patients. 101 patients had 104 implantations. Median (range) age was 35 (7-549) months and median (range) weight 13 (7-62) kg. Fifty four implantations were performed using the venous and arterial method and 50 using the venous only method.
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