Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
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Catheter Cardiovasc Interv · Feb 2000
Case ReportsCerebral arterial air embolism treated by a vertical head-down maneuver.
A case of cerebral arterial air embolism (CAAE) occurring from inadvertent injection of air during aortic root angiography is presented. Prompt treatment by suspending the patient briefly in a vertical head-down position beside the catheterization table appeared to be life-saving and resulted in complete neurological recovery. ⋯ Cardiovasc. Intervent. 49:185-187, 2000.
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Catheter Cardiovasc Interv · Jan 2000
Coronary angiography in the presence of peripheral vascular disease: femoral or brachial/radial approach?
Peripheral vascular disease is considered a relative contraindication to the femoral approach for coronary angiography, but no data exist comparing the femoral and brachial/radial routes under these circumstances. We examined the influence of vascular approach on outcome. Two hundred and ninety-seven patients, mean age 67.1 +/- 8.4 years, with clinical or radiographic evidence of aortofemoral peripheral arterial disease underwent diagnostic coronary angiography during a 3-year period at this cardiothoracic center. ⋯ Cathet. Cardiovasc. Intervent. 49:32-37, 2000.
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Catheter Cardiovasc Interv · Dec 1999
Randomized Controlled Trial Comparative Study Clinical TrialProminent ECG repolarization changes associated with intracoronary infusion of normal saline: comparisons with alternate coronary catheter flush solutions.
Normal saline (NS) is commonly used as a coronary catheter flush solution. We tested the hypothesis that intracoronary (i.c.) infusions of lactated Ringer's solution (LR) and LR with 5% dextrose (D5LR), both of which contain potassium and calcium, would be associated with less prominent surface ECG changes compared with i.c. infusions of NS. In 34 patients, 10 mL each of NS, LR, and D5LR at 37 degrees C were infused over 5 sec into the left main coronary artery. ⋯ Cathet. Cardiovasc. Intervent. 48:359-364, 1999.
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Catheter Cardiovasc Interv · Nov 1999
Comparative StudyShort- and long-term histopathologic evaluation of stenting using a self-expanding nitinol stent in pig carotid and iliac arteries.
Stenting is increasingly being used to treat carotid artery disease. However, complications including distal embolization, stent thrombosis, stent collapse from external compression, the need for high-pressure inflation with increased neointimal response, or balloon rupture during stent expansion and stent loss are all potential problems and of concern. To address each of these specific concerns, a new stent was designed, which is self-expandable, made of nitinol, with temperature-dependent superelastic properties, and with high vessel wall surface coverage. ⋯ Inflammatory cells were rare and there were no mural thrombi. Coverage of the vessel wall by endothelial-like cells was complete at 1 month. The novel nitinol EndoStent appears to have favorable biocompatibility with minimal thrombus deposition or inflammatory response, and its use is feasible for clinical application in carotid and iliac arteries.