TY - JOUR
T1 - Over-the-Wire Catheter Exchanges
T2 - Reduction of the Risk of Air Emboli
AU - Kolbeck, Kenneth J.
AU - Stavropoulos, S. William
AU - Trerotola, Scott O.
PY - 2008/8
Y1 - 2008/8
N2 - Purpose: This study evaluated the aerostatic properties of the catheter clamp during over-the-wire catheter exchanges and determined if protective devices reduce volumes of air emboli (AE). Materials and Methods: A cuffed catheter was placed in an AE model in physiologic conditions and the volume of AE was recorded during 60 seconds (n = 10). Similarly, the volume of AE entering the model during 30 seconds was recorded with the catheter clamp open (n = 10) or closed over the wire (n = 10), and with the sliding clamp in the open position (n = 10). The volume of AE during 60 seconds was recorded with the sliding clamp closed over the wire (n = 10) and with the aerostatic valve with (n = 10) and without (n = 10) a wire in place. Results: Without a wire, no AE occurred with the catheter clamp closed (60 seconds, n = 10). There was no statistically significant difference between the volumes of AE with the catheter clamp open or closed over the wire during 30 seconds (43 mL ± 4 and 32 mL ± 11, respectively). With the protective devices in place and the wire unchanged in position, no AE occurred during 60 seconds. A positive control (sliding clamp and catheter clamp open, n = 10) yielded AE volumes of 44 mL ± 5 in 30 seconds. Conclusions: AE can occur with the catheter clamp closed over a wire. Protective devices reduce the volume of AE under simulated physiologic conditions and are recommended with over-the-wire catheter exchanges.
AB - Purpose: This study evaluated the aerostatic properties of the catheter clamp during over-the-wire catheter exchanges and determined if protective devices reduce volumes of air emboli (AE). Materials and Methods: A cuffed catheter was placed in an AE model in physiologic conditions and the volume of AE was recorded during 60 seconds (n = 10). Similarly, the volume of AE entering the model during 30 seconds was recorded with the catheter clamp open (n = 10) or closed over the wire (n = 10), and with the sliding clamp in the open position (n = 10). The volume of AE during 60 seconds was recorded with the sliding clamp closed over the wire (n = 10) and with the aerostatic valve with (n = 10) and without (n = 10) a wire in place. Results: Without a wire, no AE occurred with the catheter clamp closed (60 seconds, n = 10). There was no statistically significant difference between the volumes of AE with the catheter clamp open or closed over the wire during 30 seconds (43 mL ± 4 and 32 mL ± 11, respectively). With the protective devices in place and the wire unchanged in position, no AE occurred during 60 seconds. A positive control (sliding clamp and catheter clamp open, n = 10) yielded AE volumes of 44 mL ± 5 in 30 seconds. Conclusions: AE can occur with the catheter clamp closed over a wire. Protective devices reduce the volume of AE under simulated physiologic conditions and are recommended with over-the-wire catheter exchanges.
UR - http://www.scopus.com/inward/record.url?scp=48949115376&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=48949115376&partnerID=8YFLogxK
U2 - 10.1016/j.jvir.2008.04.025
DO - 10.1016/j.jvir.2008.04.025
M3 - Article
C2 - 18656017
AN - SCOPUS:48949115376
VL - 19
SP - 1222
EP - 1226
JO - Journal of Vascular and Interventional Radiology
JF - Journal of Vascular and Interventional Radiology
SN - 1051-0443
IS - 8
ER -