Summary:Apheresis is an increasingly important procedure in the treatment of a variety of conditions, sometimes performed via peripheral access because of concern over major complications associated with central venous catheter (CVC) placement. This study sought to determine the safety and success for ultrasound and fluoroscopically guided, non-tunneled dual lumen CVCs placed for apheresis. Prospective data collection was made of 200 attempted CVC placements in the radiology department utilizing real time sonographic guidance. The complications relating to placement were noted in all and the number of passes required for venepuncture and whether a single wall puncture was achieved was recorded in 185 cases. Duration of catheterization and reason for line removal were recorded in all. Our study group included 71 donors providing peripheral blood stem cells for allogeneic transplant. CVCs were successfully placed in all patients, 191 lines in the internal jugular and seven in the femoral vein. 86.5% required only a single pass and 80.5% with only anterior wall puncture. Inadvertent but clinically insignificant arterial puncture occurred in six (3%) cases. In no case did this prevent line placement. There were no other procedure-related complications. 173 (87.4%) catheters were removed the same day. No catheters were removed prematurely. There was one case of prolonged venous bleeding. Our study demonstrates the safety of central venous catheters for apheresis provided that duration of catheterization is short and real-time sonographic guidance is used for the puncture, and guide wire and catheter placement are confirmed fluoroscopically.
Background: Peripherally inserted central catheters (PICCs) are increasingly inserted by trained registered nurses, necessitating the development of specialized skills such as the use of ultrasound. The selection of an adequately sized vein is an important factor in reducing adverse events such as deep vein thrombosis. However, PICC nurses may receive minimal training in the use of ultrasound for vein measurement. Objective: We aimed to demonstrate the reliability of a vein measurement protocol using ultrasound by a PICC nurse trained in sonography. Methods: The diameter of the basilic, brachial, and cephalic veins in the left arms of healthy participants (n =12) were measured using ultrasound by a PICC nurse and a sonographer. A PICC nurse performed the measurement twice and the sonographer once; the PICC nurse's results were compared for intra-rater reliability and compared with the sonographer for inter-rater reliability. The results were analyzed using intraclass correlation coefficients (ICCs). Results: Inter-rater reliability between the PICC nurse and the sonographer was adequate, the ICC for the brachial vein was 0.60 (95% confidence interval [CI], 0.06–0.87), basilic vein ICC was 0.87 (95% CI, 0.58–0.96) and cephalic vein ICC was 0.77 (95% CI, 0.39–0.93). Intra-rater reliability of the PICC nurse was higher; the ICC for the brachial vein was 0.80 (95% CI, 0.44–0.94), basilic vein ICC was 0.92 (95% CI, 0.67–0.98), and cephalic vein ICC was 0.78 (95% CI, 0.40–0.93). Conclusions: Using a suitable protocol, a PICC nurse was able to measure vein diameter reliably when compared with a sonographer and consistently replicate these results.
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