Publications by authors named "Vacheron A"

Significance: This study aimed to determine the prescription rates and prescribing trends of opioids by optometrists in the Centers for Medicare & Medicaid Services (CMS) part D database from 2013 to 2017 and to assess opioid prescribing patterns of U.S. optometrists in the CMS part D database.

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Purpose: To assess extended release/long acting (ER/LA) opioid prescribing patterns among ophthalmic plastic surgeons in the Centers for Medicare and Medicaid Services (CMS) Part D database.

Methods: A retrospective observational cohort study was conducted on oculoplastic surgeons in the CMS Part D database who prescribed ER/LA opioids from 2013 to 2017. American Society of Ophthalmic Plastics and Reconstructive Surgery (ASOPRS) and non-ASOPRS surgeons were analyzed as groups.

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Background: The biguanide drug metformin is one of the most commonly used medications for the treatment of type 2 diabetes mellitus. Diabetics are at an increased risk for cancer. Previous studies have demonstrated improved outcomes in patients taking metformin suffering from prostate, colon, lung, thyroid, and esophageal cancers.

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The biguanide drug metformin used for treating Type 2 diabetes has anticancer properties and affects many pathways involving glucose metabolism, energy balance, and cell survival. A number of retrospective clinical studies have indicated a reduced risk of cancer and improved cancer outcomes in Type 2 diabetic patients taking metformin. Several of its effects are mediated through the induction of cellular stress and subsequent activation of AMP kinase, but many other mechanisms act independently of AMP kinase activation.

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[End of life in France].

Bull Acad Natl Med

January 2015

Two major changes in end-of-life management have occured in recent decades: first, because of the increase in life expectancy and the resulting aging of the population, most deaths now involve old or very old people; second, more than two-thirds of deaths occur in a hospital or an institution. Our fellow citizens are afraid of suffering and death. They wish for a peaceful death, as rapid as possible and, in recent surveys, say they favour euthanasia.

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The mortality rate after myocardial infarction fell sharply with the advent of reperfusion methods and the use of efficient antithrombotic and antiischemic drugs. However, new infarcts, heart failure, arrythmias and sudden death remain frequent, especially in the first two years after the initial event. Large clinical studies have defined and validated therapies for secondary prevention, but the recommended measures are not always properly implemented.

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Prescriptions in cardiology have progressed from the often empirical and approximate approach used in the past to more rational approach based on the results of large clinical trials. For high blood pressure, bi- or even tri-therapy is often necessary. For coronary heart disease, betablockers, aspirin, calcium inhibitors, statins and converting enzyme inhibitors constitute the mainstay drugs.

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Introduction: The authors report on six cases of aortic dissection (AD). The work intended to bring out AD characteristics and attempt to define a profile of African patients who manifested this disease. The diagnosis of AD was determined on the basis of: clinical and radiological criteria (six cases); echocardiographic data (five cases); aortographic and surgical informations (two cases).

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Combined coronary angioplasty and coronary angiography is performed in most catheter laboratories and has become a routine procedure. The aim of this study was to assess its clinical results and economic value. This was a retrospective monocenter study performed over an 11 year period (1990-2000) which included 2,727 patients requiring coronary angioplasty after coronary angiography.

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The mechanisms of atherogenesis are better understood and the detection of atherosclerosis has improved with the different diagnostic methods currently available. However, it is almost impossible at present to differentiate high risk, unstable or vulnerable plaques from quiescent or stable plaques of atherosclerosis. This is a crucial problem given the banality of atherosclerosis on the one hand, and, on the other hand, the serious consequences (acute coronary syndromes, cerebrovascular accidents) of thrombotic occlusion at the site of an atherosclerotic plaque.

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Talking has been shown to increase blood pressure instantaneously in hypertensive patients and to contribute to the white coat effect. The effects of talking were compared with those of counting aloud in 64 patients with essential hypertension who were randomly assigned to a period of stress talking and a period of counting aloud (active periods), alternating with three periods of silence (control). The same monitor was used for office measurements and 24-hour ambulatory blood pressure analysis.

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Background: Balloon coronary angioplasty has been reported to be ineffective in patients treated for end stage renal disease because of a high restenosis rate.

Objective: To compare the clinical outcome following coronary angioplasty with provisional stenting in dialysis versus non-dialysis patients.

Design: A case-control study.

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The results of balloon coronary angioplasty are very disappointing in haemodialysis patients because of the high restenosis rate. On the other hand, the use of stents in this population had not previously been assessed. This retrospective study compared 63 coronary patients on haemodialysis with a référence group of 63 paired patients with respect to gender, age, and the necessity or not of stent implantation.

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Aim: We report the long-term outcome of aortic and mitral bioprostheses in patients over 65 years of age at the time of implantation. The aim was to determine actuarial patient survival, causes of death, and the rate of documented primary structural deterioration.

Methods: One hundred ten patients > or = 65 years of age (mean, 73.

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Noninvasive detection of restenosis in patients remaining asymptomatic after percutaneous transluminal coronary angioplasty (PTCA) remains a major clinical problem. The value of exercise electrocardiography (ECG) and exercise-redistribution thallium-201 single-photon emission computed tomography (SPECT) in detecting restenosis in such patients remains uncertain. Discordances between these tests and coronary angiography is a common situation.

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The 3-morpholinosydnonimine (SIN-1) generates both nitric oxide (NO) and superoxide anion (O2-). It elicits dose-dependent vasodilation in vivo, in spite of the opposite effects of its breakdown products on vascular tone and platelet aggregation. This study was designed to investigate the influence of intravenous SIN-1 injection on platelet Ca2+ handling in patients undergoing coronary angiography.

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Whole blood coagulation analysers are widely used during percutaneous coronary interventions. The precise degree of anticoagulation in patients is important in this setting. The aim of this investigation was to compare the results obtained with ACT (Hemochron) and HMT, the Heparin Management Test (TAS) in patients undergoing percutaneous coronary interventions.

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Myocardial infarction is the result of thrombotic coronary artery occlusion. Although present-day thrombolytics have major value by increasing the frequency of reopening of arteries responsible for myocardial infarction, by preserving myocardial function and, thereby, significantly reduce mortality. Nevertheless, they are subject to the following limitations: 1) excellent arterial partency is only obtained in 50% of cases: 2) reocclusion occurs in 5 to 10% of cases; 3) severe complications such as cerebral haemorrhage are observed in about 0.

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Background: The role of constrictive remodeling, spasm and proliferation (particularly in the adventitia) in the genesis of chronic lumen narrowing after balloon injury remains under debate. This study analyzed the time course of these components following mild injury in normal arteries.

Methods: Iliac injury was induced by balloon overstretch in 32 rabbits, sacrificed at timed intervals from day 3 to 28.

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The aim of this study was to compare the activated clotting time (ACT) obtained with the Hemochron device and the Heparin Management Test (HMT) on a new automated whole-blood coagulometer, the Thrombolytic Assessment System, in patients undergoing angioplasty. Fifty patients undergoing balloon angioplasty were prospectively enrolled. The mean ACT after a 10,000 unit bolus of heparin was 283 +/- 39 sec at the end of the procedure.

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