OBJECTIVES Coronary lumen changes during and after excimer laser-assisted balloon angioplasty were measured by quantitative coronary angiography, and the results were compared with the effects of balloon angioplasty alone. BACKGROUND Reduction of atherosclerotic tissue mass by laser ablation in the treatment of coronary artery disease may be more effective in enlarging the lumen than balloon ...

BACKGROUND Despite American College of Cardiology (ACC) and American Heart Association (AHA) guidelines, many hospitals have door-to-balloon times in excess of 90 minutes. Emergency Department (ED) activation of interventional cardiology has been described as an important strategy to reduce door-to-balloon time. However, prior studies on ED activation have been in suburban hospitals with door-t...

OBJECTIVE Sympathetic activity increases in patients with mitral stenosis (MS). The association between prolonged Tpeak-Tend (Tp-e) interval and increased sympathetic activity has been demonstrated. This study aimed to evaluate Tp-e interval, Tp-e/QT ratio, and Tp-e/corrected QT interval (QTc) ratio in patients with MS before and after balloon valvuloplasty. METHODS Thirty patients with sever...

Aim. Define the safety and effectiveness of rendezvous technique for choledocholithiasis. Material methods. We performed a retrospective prospective analysis results in percutaneous transhepatic access to bile ducts endoscopic intervention choledocholithiasis 100 elderly patients. The patients were divided into 2 groups 50 people. implementation began from antegrade stage group I; II – retrogra...

In this article, we analyze the application of options contract in the special commodity supply chain such as fresh agricultural products. This problem is discussed from the point of the retailer. When spot market and future market are both available, we discuss how the retailer chooses the optimal production. Furthermore, overconfidence is introduced to the supply chain of the fresh agricultur...

Balloon dilatation angioplasty was successfully performed in five patients (ages 18 months to 17 years) with discrete aortic coarctation. The catheter size was No. 8F or 9F. Selection of balloon diameter was based on angiographic measurements of the aorta determined proximal and distal to the coarctation site. A 10 sec inflation-deflation cycle at 6 to 8 atmospheres (90 to 120 psi) was performe...

Lamport’s Happened-before relation is fundamental to coordinating actions in asynchronous systems. Its role is less dominant in synchronous systems, in which bounds are available on transmission times over channels. This paper initiates a study of the role that time bounds play in synchronous systems by focusing on two classes of problems: Ordered Response, in which a triggering event must be f...

INTRODUCTION The chemical industry is a much safer place to work than many industries with fewer inherent hazards. Nevertheless, almost all the accidents that have occurred need not have occurred. Most of them have happened before and have been described in published reports. Someone knew how to prevent them even if the people on the job at the time did not. There is something seriously wrong w...

Background: For many people, varicose veins and spider are simply a cosmetic concern. other can cause aching pain discomfort. Sometimes lead to more-serious problems. Objective: To evaluate the effect of staging down lower limb by injection sclerotherapy before surgical treatment in comparison with standard procedure. Patients Methods: Included 40 patients, aged 25–42 years (Range), who were re...