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To the Editor.—
Patients referred to the Radiology Department for an emergency angiogram for detection of pulmonary emboli, pericardial fluid, etc, often have a venous infusion or a central venous pressure catheter in place. In many instances, in particular with the presence of a central venus pressure catheter, it has been possible to use the existing venous route by catheter replacement technique in order to insert catheters of appropriate size and characteristics for pressure injection. A description of a transfer of a central venous pressure catheter follows:The catheter insertion site is cleaned with iodine and alcohol, and the catheter is taped in position near the site of insertion with a sterile bandage. The excess catheter is cut distal to the tape and a flexible tip guidewire is inserted through the indwelling catheter. Either a 0.025-inch or 0.035-inch diameter guidewire is used, depending on the caliber of the indwelling catheter.
Gabriele OF. Venous Catheter Replacement Techniques. JAMA. 1970;211(8):1378. doi:10.1001/jama.1970.03170080066021
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