BACKGROUND The ideal bifurcation stenting technique is not established, and data on the hemodynamic characteristics at stented bifurcations are limited. METHODS AND RESULTS We used computational fluid dynamics analysis to assess hemodynamic parameters known affect the risk of restenosis and thrombosis at coronary bifurcations after the use of various single- and double-stenting techniques. We...

OBJECTIVE Tracheal diverticulum (DV) is an incidental finding in thoracic computed tomography examinations. Tracheal DV may be associated with chronic cough and chronic obstructive pulmonary disease (COPD). A few studies have investigated the relationship between tracheal DV and COPD. There is still no consensus on the relationship. The purpose of this study was to determine the incidence of tr...

Tracheal obstruction and tracheal injury can be life-threatening conditions in dogs and cats. Early identification of associated clinical signs and the use of appropriate diagnostic and therapeutic techniques are important to patient survival. Common causes of tracheal obstruction reported in the veterinary literature include tracheal foreign bodies and tracheal tumors. Tracheal injury has been...

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Introduction: The risk of developing coronary artery disease (CAD) for both men and women is increasing in society today. Over the past twenty-five years, the concepts of percutaneous transluminal coronary angioplasty (PTCA) and stenting have become dominant modalities in the treatment of CAD. In the late 1970’s and early 1980’s, PTCA was seen as the best possible alternative to bypass surgery ...

The Centers for Medicare and Medicaid Services (CMS) will reduce payment for coronary stenting on January 1, 2013. That is the bad news. More on that later. Is there any good news? Yes. First, CMS could have cut payments for coronary stenting 10 or more years ago, but it did not. Second, coronary stenting has been reimbursed for the past 17 years at a rate that was set in 1994. To appreciate th...

AIMS To compare, by meta-analytical techniques, the clinical impact of bare-metal stenting vs. balloon angioplasty for the treatment of lesions in small coronary arteries. METHODS AND RESULTS We included trials with random allocation and prospective comparison of angioplasty vs. stenting, reference vessel diameter<3 mm, and follow-up>or=6 months. Random effect odds ratios (OR) for death, myoc...

PURPOSE To clarify the outcome of flexible ureteroscopy (fURS) for management of renal calculi without preoperative stenting. METHODS A total of 171 patients who received 176 fURS procedures for unilateral renal stones were reviewed. All procedures were divided into two groups depending on whether they received ureteral stenting preoperatively. Baseline characteristics of patients, stone burd...