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Efficiency of Air Bubble Removal in Preparation of Low-Profile Angioplasty Balloon Catheter: Bench-Top Comparison of Six Methods
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논문 기본 정보

Type
Academic journal
Author
Choi JoonHo (서울아산병원) Jinkook Tak (광운대학교)
Journal
대한신경중재치료의학회 Neurointervention Neurointervention Vol.14 No.1 KCI Candidated Journals
Published
2019.1
Pages
27 - 34 (8page)

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Efficiency of Air Bubble Removal in Preparation of Low-Profile Angioplasty Balloon Catheter: Bench-Top Comparison of Six Methods
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Purpose Complete removal of air bubbles from balloons for neurovascular angioplasty is cumbersome. We compared the preparation difficulty, air removal efficiency, and air collection pattern of six different balloon catheter preparation methods to propose a better preparation method for both initial and second balloon uses, especially for small-profile angioplasty balloon catheters. Materials and Methods A total of 18 neurovascular angioplasty balloon catheters with nominal diameters of 2 mm were prepared to test six different preparation methods: the instruction for use method (method A), simplified method using a syringe (method B) and four newly devised preparation methods using inflating devices (methods C–F). Serial radiographs were obtained while the balloons were gradually inflated. We measured the time for each preparation and the bubble number, analyzed their distribution in the balloon, and calculated the contrast filling ratio (contrast filling area/total balloon area) for initial and second ballooning. The whole process was repeated three times. Results The preparation time varied widely (11.5 seconds [method D] to 73.3 seconds [method A]). On initial inflation, the contrast filling ratio at 8 atm was the highest (100%) with methods A and F. On second inflation, the ratio was again highest with method A (99.5%), followed by method F (99.2%). Initial ballooning tended to show a uniform pattern of single bubble in the distal segment of the balloon; in contrast, second ballooning showed varying patterns in which the bubbles were multiple and randomly distributed. Conclusion None of the six methods were able to completely exclude air bubbles from the balloon catheters including the second ballooning; however, the method of repeating aspiration with high-volume inflating device (method F) could be a practical option considering the simplicity and efficiency of preparation.
#anial atherosclerosis #Balloon angioplasty #Air embolism #Device failure

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Fiorella D / 2007 / A 7-year experience with balloon-mounted coronary stents for the treatment of symptomatic vertebrobasilar intracranial atheromatous disease / Neurosurgery 61:236~242 google schola Karanam LSP / 2017 / Balloon angioplasty for intracranial atherosclerotic disease: a multicenter study / J Vasc Interv Neurol 9:29~34 google schola Suh DC / 2008 / Intracranial stenting of severe symptomatic intracranial stenosis:results of 100 consecutive patients / AJNR Am J Neuroradiol 29:781~785 google schola Kim KS / 2012 / Usefulness of stent implantation for treatment of intracranial atherosclerotic stenoses / Neurointervention 7:27~33 google schola Chang HW / 2015 / Recommendations for carotid stenting in Korea / Neurointervention 10:7~13 google schola

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