41 research outputs found
An unusual case of ST-segment elevation myocardial infarction following a late bare-metal stent fracture in a native coronary artery: a case report
<p>Abstract</p> <p>Introduction</p> <p>A bare-metal stent fracture as a cause of acute coronary thrombosis and consequently of acute coronary syndrome is a rare clinical event that, to the best of our knowledge, has previously not been reported. A stent fracture is a rare complication arising from percutaneous coronary intervention.</p> <p>Case presentation</p> <p>We present, to the best of our knowledge, the first documented case of ST-segment elevation myocardial infarction in a patient following a late bare-metal stent fracture and thrombosis in a native coronary artery. The patient, a 51-year-old Caucasian man, was treated successfully with primary percutaneous coronary intervention and a new stent implantation.</p> <p>Conclusion</p> <p>A coronary stent fracture is a rare complication that has been described in venous bypass grafts deploying either a drug-eluting stent or a bare-metal stent. Stent fractures rarely occur in coronary arteries. In light of the non-specific presentation of stent fracture, it is also an easily missed complication. Patients may present with a non-specific symptom of angina. The angina could either be stable or unstable as a result of restenosis or in-stent thrombosis, or both. Our case demonstrates the most severe consequences of a bare-metal stent fracture (sudden coronary thrombosis and subsequent myocardial infarction) in a native coronary artery. It was diagnosed angiographically and treated early and effectively.</p
Violations of fundamental symmetries in atoms and tests of unification theories of elementary particles
High-precision measurements of violations of fundamental symmetries in atoms
are a very effective means of testing the standard model of elementary
particles and searching for new physics beyond it. Such studies complement
measurements at high energies. We review the recent progress in atomic parity
nonconservation and atomic electric dipole moments (time reversal symmetry
violation), with a particular focus on the atomic theory required to interpret
the measurements.Comment: 103 pages, 23 figures; submitted to Physics Reports; comments welcom
Use of Self-Expanding Stents for the Treatment of Vertebral Artery Ostial Stenosis: a Single Center Experience
Polarizabilities and parity non-conservation in the Cs atom and limits on the deviation from the standard electroweak model
A semi-empirical calculation of the 6s - 7s Stark amplitude in Cs
has been performed using the most accurate measurements and calculations of the
electromagnetic amplitudes available. This is then used to extract the
parameters of the electroweak theory from experimental data. The results are:
, weak charge of Cs , deviation from the Standard model and limit on the mass of the extra Z-boson in SO(10) model
.Comment: 8 pages; submitted to Phys. Rev.
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