Injection of air bubbles during flushing of angiocatheters: An in vitro trial of conventional hardware and techniques

Citation
Ac. Mamourian et al., Injection of air bubbles during flushing of angiocatheters: An in vitro trial of conventional hardware and techniques, AM J NEUROR, 22(4), 2001, pp. 709-712
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging","Neurosciences & Behavoir
Journal title
AMERICAN JOURNAL OF NEURORADIOLOGY
ISSN journal
0195-6108 → ACNP
Volume
22
Issue
4
Year of publication
2001
Pages
709 - 712
Database
ISI
SICI code
0195-6108(200104)22:4<709:IOABDF>2.0.ZU;2-Y
Abstract
BACKGROUND AND PURPOSE: Injected air bubbles are a well-accepted cause of s troke during cerebral angiography. We used an in vitro model to determine t he frequency of occurrence of air emboli during catheter flushing using con ventional hardware and techniques. METHODS: Two experimental models were used in this study. The first incorpo rated an inline bubble trap. Ten members of our angiography section flushed this system in their usual fashion and then with two modifications of the hardware. The trap was inspected after each trial of seven injections and a ny visible bubble was measured with calipers. The second model used a peris taltic pump along with a transcranial Doppler device to look at the relativ e number of bubble events with modifications of the flush solution or techn ique. RESULTS: The closed-flush set in common usage in our department caused an i ncrease in the number of visible bubbles in the trap as compared with an op en basin. Degassing the solution and delaying injection decreased the numbe r of bubble events noted in model 2, CONCLUSION: Bubble emboli are commonplace during flushing of angiography ca theters when using conventional techniques and equipment.