Journal of vascular and interventional radiology : JVIR
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J Vasc Interv Radiol · Nov 2007
Case ReportsSignificant caval penetration by the celect inferior vena cava filter: attributable to filter design?
This report describes transmural penetration of the inferior vena cava (IVC) by a newly introduced IVC filter within 9 days of its placement. A computed tomographic study demonstrated filter penetration with one of the primary struts lodging in the uncinate process of the pancreas. Because of the close resemblance of this new filter to another filter that has not been associated with penetration injuries, the key differences between the two designs were examined and the determination was made that the new filter, unlike the older one, has unprotected primary struts. Only filters with an unprotected primary strut design have been associated with penetration injuries such as the one described in this case.
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J Vasc Interv Radiol · Oct 2007
Case ReportsDouble stent technique for the treatment of an internal carotid artery pseudoaneurysm caused by zone III stab injury.
A 77-year-old man was transferred to the hospital with swelling of his neck and oropharynx after a stab injury to his oral cavity with pruning shears. Findings at complete neurologic examination were normal. Contrast-enhanced computed tomography (CT) and angiography revealed a pseudoaneurysm at the pharyngeal portion of the right internal carotid artery. ⋯ There were no complications. There were no further symptoms or evidence of recurrence of the aneurysm during the 18-month follow-up period. The double bare stent technique is safe and effective for the treatment of zone III carotid artery stab injuries.
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J Vasc Interv Radiol · Oct 2007
Case ReportsUse of rigid bronchoscopic forceps in the difficult retrieval of the Günther Tulip inferior vena cava filter.
Retrievable inferior vena cava (IVC) filters may, over time, become incorporated into the wall of the IVC, making subsequent removal difficult. The authors present a case in which a Günther Tulip filter was placed prophylactically before gastric bypass surgery. The retrieval hook of the filter became incorporated into the wall of the IVC, preventing the filter from being snared. Eventually, the filter was freed from the wall of the IVC and successfully removed by using rigid bronchoscopy forceps; however, the filter was damaged in the process.
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J Vasc Interv Radiol · Oct 2007
Time to hemostasis after traction removal of tunneled cuffed central venous catheters.
Many patients undergo placement of tunneled cuffed central venous catheters (TCCVCs) for indications including administration of medical therapy and hemodialysis. They are removed when no longer needed or if there is a device complication. There is no consensus regarding the necessity of routine preremoval coagulation studies or platelet count, so this study was performed to determine if abnormal coagulation status affects the time to hemostasis (TH) after traction removal of TCCVCs. ⋯ Routine preremoval evaluation of coagulation parameters is not necessary. Patients who are likely to have abnormal platelet function but not abnormal platelet number appear to be at risk for prolonged TH, but even in those cases, the THs are rarely more than 15 minutes.