منابع مشابه
The disappearing stent: when plastic replaces metal.
When metallic stents were first introduced in 1986, they offered immediate promise. Vessel scaffolding, which created a wide patent lumen, was conceived as an attractive solution to dissection, acute recoil, and abrupt closure, which were the main shortcomings of balloon angioplasty.1 Furthermore, in comparison with balloon angioplasty, the use of metallic stents was associated with a significa...
متن کاملEditorial The Disappearing Stent When Plastic Replaces Metal
When metallic stents were first introduced in 1986, they offered immediate promise. Vessel scaffolding, which created a wide patent lumen, was conceived as an attractive solution to dissection, acute recoil, and abrupt closure, which were the main shortcomings of balloon angioplasty.1 Furthermore, in comparison with balloon angioplasty, the use of metallic stents was associated with a significa...
متن کاملDisappearing Hardware
F or many tasks today, the use of computers is not entirely satisfactory. The interactions take effort and are often difficult. The traditional, and still prevalent, computing experience is sitting in front of a box, our attention completely absorbed in the dialog required to complete the details of a greater task. Putting this in perspective, the real objective is the task's completion, not th...
متن کاملSerum chromium levels sampled with steel needle versus plastic IV cannula. Does method matter?
PURPOSE Modern metal-on-metal (MoM) joint articulations releases metal ions to the body. Research tries to establish how much this elevates metal ion levels and whether it causes adverse effects. The steel needle that samples the blood may introduce additional chromium to the sample thereby causing bias. This study aimed to test that theory. METHODS We compared serum chromium values for two s...
متن کاملDisappearing hypercalcaemia.
Four women presented with symptomatic hypercalcaemia and raised concentrations of serum parathyroid hormone (PTH). In each case, serum calcium returned spontaneously to normal. In two patients serum PTH also fell to the normal range and biochemical relapse has not occurred despite prolonged follow-up. In the others, serum PTH remained elevated and subsequent symptomatic hypercalcaemia necessita...
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ژورنال
عنوان ژورنال: BMJ
سال: 1964
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.5415.1010-a