Journal of vascular and interventional radiology : JVIR
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J Vasc Interv Radiol · Oct 2005
Case ReportsThoracic paravertebral block for percutaneous transhepatic biliary drainage.
Percutaneous transhepatic biliary drainage is a painful procedure most commonly performed after intravenous sedation. Despite systemic opiates and benzodiazepines, most patients experience significant pain during the procedure and in the recovery period. Paravertebral blocks allow the spinal nerve roots and sympathetic chain in the paravertebral space to be anesthetized, and their role in providing analgesia for thoracic and upper abdominal surgical procedures is well-established. Herein a case is described in which thoracic paravertebral blockade dramatically reduced standard intra- and postprocedural analgesic needs and provided superior pain control.
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J Vasc Interv Radiol · Sep 2005
Experience with the recovery filter as a retrievable inferior vena cava filter.
This study evaluates clinical experience with the Recovery filter as a retrievable inferior vena cava (IVC) filter. ⋯ Although all the filters were placed with the intention of being removed, a large percentage of filters were not retrieved. The Recovery filter was safe and effective in preventing PE when used as a retrievable IVC filter.
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J Vasc Interv Radiol · Sep 2005
Comparative StudyComparison of recirculation percentage of the palindrome catheter and standard hemodialysis catheters in a swine model.
The purpose of this study was to evaluate in vivo recirculation of a new bi-directional dialysis catheter with a symmetric tip design and compare it to currently marketed staggered and split tip catheters. ⋯ Preliminary results in vivo indicate that the Palindrome catheter demonstrates minimal recirculation with reversal of the dialysis lines compared to currently marketed split tip and staggered tip catheters.
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J Vasc Interv Radiol · Aug 2005
The effect of catheter-directed CT angiography on yttrium-90 radioembolization treatment of hepatocellular carcinoma.
Yttrium 90 radioembolization is a transcatheter therapy for unresectable hepatocellular carcinoma (HCC) that delivers internal radiation to tumors. In contrast to the usual method of lobar regional delivery, catheter-directed computed tomographic (CT) angiography was investigated as a potentially useful technique to evaluate the administration of segmental 90Y tumor radiation doses superselectively without significantly altering liver function or Child-Pugh classification. ⋯ CT angiography can be used to delineate the blood supply and volume to a targeted hepatic segment, allowing superselective 90Y radioembolization. This approach significantly increases effective 90Y tumor radiation dose without clinically altering liver function or Child-Pugh class.
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The authors believe that ultrasound as a primary method of image guidance for performing hip aspirations is underutilized, and the authors report their experience in performing ultrasound-guided hip injections in 358 patients, using a free-hand technique. ⋯ To the authors' knowledge, this is the largest reported series of sonographically-guided adult hip aspirations/injections without the use of a needle guide. The authors believe that ultrasound as a primary method of image guidance for performing hip aspirations is underutilized. The absence of radiation and relatively short procedure time of ultrasound-guided hip injections are favorable factors to both the authors' referring clinician population as well as the patients.