Journal of vascular and interventional radiology : JVIR
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J Vasc Interv Radiol · Nov 2005
Multicenter Study Clinical TrialThe Jonas study: evaluation of the retrievability of the Cordis OptEase inferior vena cava filter.
To evaluate the success, safety, and efficacy of the retrieval of the OptEase Permanent/Retrievable Vena Cava Filter (Cordis, Warren, NJ), when implanted for temporary protection against venous thromboembolism. ⋯ The OptEase permanent/retrievable vena cava filter can be safely and successfully retrieved up to 14 days in patients who no longer require inferior vena cava filter protection against pulmonary embolism.
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J Vasc Interv Radiol · Nov 2005
Randomized Controlled TrialIntraarticular hyaluronic acid versus glucocorticoid injections for nonradicular pain in the lumbar spine.
To investigate the efficacy and safety of intraarticular sodium hyaluronate (SH) compared with intraarticular glucocorticoids (triamcinolone acetonide; TA) in the treatment of chronic nonradicular lumbar pain. ⋯ Intraarticular SH is a very promising new option for the treatment of patients with chronic nonradicular lumbar symptoms.
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J Vasc Interv Radiol · Nov 2005
Bench-top evaluation of air flow through a valved peelable introducer sheath.
Air embolism is a rare but potentially fatal complication that may occur during the insertion of a central venous catheter. A valved peelable introducer sheath was developed to reduce the likelihood of an air embolus. This study was performed to determine the rate of air flow through this valved introducer sheath under different conditions that may be encountered in a clinical setting. ⋯ This bench-top study revealed that a massive amount of air flowed through the open 16-F introducer sheath when it was subjected to a vacuum of -5 mm Hg, a situation that may occur under normal physiologic conditions. The rate of air flow could be decreased by aggressively pinching the sheath but the rate of air flow was still substantial. This study demonstrated that the addition of a sophisticated valve mechanism can essentially eliminate air flow through a peelable introducer sheath.