Characteristics of Some New Generation Refrigerants with Low GWP

AbstractIn the present study, a comparison was considered about some characteristics of new generation low GWP value gases most of which are at the trial stage. Hydrofluoro-olefin (HFO) based mixed gases having low GWP value were investigated as alternatives to different four refrigerants used commonly in refrigerating and air conditioning equipments. In the study, R450A, R513A, R1234yf and R1234ze(E) gases were used instead of R134a; DR-33, L40, DR-7 and R448A were used instead of R404A; DR-5 and R447A were used instead of R410A; and N20 and R444B refrigerants were used as alternatives to R22. Refrigerants were compared within their own groups in terms of liquid density and viscosity properties

Surgery for Hydatid Cysts of the Liver

This report details the perioperative management of 488 patients who underwent surgery for hydatid cysts of the liver. The most common pathology was a single cyst in the right lobe of the liver (53%). The preferred surgical procedures were partial cystectomy with closure of the residual cavity by suturing (31%) and total cystectomy (18%). Comunication with the biliary system was found in 13% of cysts. The presence of multiple cysts and the need for additional procedures contributed to the overall perioperative morbidity ( 42%) and mortality (1%)

Predictors of Symptomatic Hemorrhage After Endovascular Treatment for Anterior Circulation Occlusions: Turkish Endovascular Stroke Registry

We evaluated the predictive factors of symptomatic intracranial hemorrhage (SICH) in endovascular treatment of stroke. We included 975 ischemic stroke patients with anterior circulation occlusion. Patients that had hemorrhage and an increase of >= 4 points in their National Institutes of Health Stroke Scale (NIHSS) after the treatment were considered as SICH. The mean age of patients was 65.2 +/- 13.1 years and 469 (48.1%) were women. The median NIHSS was 16 (13-18) and Alberta Stroke Program Early CT 9 (8-10). In 420 patients (43.1%), modified Rankin Scale was favorable (0-2) and mortality was observed in 234 (24%) patients at the end of the third month. Patients with high diastolic blood pressure (P<.05) had significantly higher SICH. SICH was significantly higher in those with high NIHSS scores (P<.001), high blood glucose (P<.001), and leukocyte count at admission (P<.05). Diabetes mellitus (DM) (OR 1.90; P<.001), NIHSS (OR 1.07; P<.05), adjuvant intra-arterial thrombolytic therapy (IA-rtPA) (OR, 1.60; P<.05), and puncture-recanalization time (OR 1.01; P<.05) were independent factors of SICH. Higher baseline NIHSS score, longer procedure time, multiple thrombectomy maneuvers, administration of IA-rtPA, and the history of DM are independent predictors of SICH in anterior circulation occlusion

İNME KLİNİK PRATİĞİNDE NOAK KULLANIMI:TÜRK BEYİN DAMAR HASTALIKLARI DERNEĞİ UZMAN GÖRÜŞÜ

Non-vitamin K oral antikoagülanların (NOAK) atrial fibrilasyonda inmenin önlenmesi amacıyla on yılı aşan bir süredirbaşarı ile kullanıldığı açıktır. Varfarine göre belirgin derecede az kanamaya yol açmaları ve inmeyi de eşit veya daha fazlaoranda önleyebilmeleri yanı sıra kolay kullanım özellikleri primer proflakside atrial fibrilasyona bağlı inmeyi azaltmakonusunda öne çıkmaktadır. Bunlar aynı zamanda genel inme prevalansının azalması anlamına gelmektedir. Yani AFnedenli inmenin engellenmesi toplum sağlığı için çağdaş bir gereklilik olarak algılanmalıdır. İnme klinik pratiğindekardiyoloji uzmanları ile birlikte bu bağlamda çaba sarf eden nöroloji uzmanları için Türk Beyin Damar HastalıklarıDerneği bu uzman görüşünü hazırladı. Görüşler NOAK grubu ilaçların kullanımında sıkça karşılaşılan sorunlar ve buproblemler için güncel çözüm önerilerini içermektedir.It is clear that nonvitamin K oral anticoagulants (NOACs) have been used successfully for more than ten years to preventstroke in atrial fibrillation. In addition to the fact that they cause significantly less bleeding compared to warfarin and canprevent stroke equally or more, their easy-to-use features stand out in reducing stroke due to atrial fibrillation in primaryprophylaxis. These also mean a decrease in the overall prevalence of stroke. For sure, prevention of AF-induced strokeshould be perceived as a contemporary requirement for public health. Turkish Society of Cerebrovascular Diseases hasprepared this expert opinion for neurologists who strive for this purpose together with cardiologists in the clinicalpractice of stroke. The article contains frequently encountered problems in the use of NOACs and current solutions forthese problems

Causative pathogens and antibiotic resistance in diabetic foot infections: A prospective multi-center study

WOS: 000378759700027PubMed ID: 26965794Aim: Clinical practice guidelines for the management of diabetic foot infections developed by the Infectious Diseases Society of America (IDSA) are commonly used worldwide. The issue of whether or not these guidelines need to be adjusted for local circumstances, however, has seldom been assessed in large prospective trials. Methods: The Turk-DAY trial was a prospective, multi-center study in which infectious disease specialists from centers across Turkey were invited to participate (NCT02026830). Results: A total of 35 centers throughout Turkey enrolled patients in the trial. Overall, investigators collected a total of 522 specimens from infected diabetic foot wounds for culture from 447 individual patients. Among all isolates, 36.4% were gram-positive organisms, with Staphylococcus aureus the most common among these (11.4%). Gram-negative organisms constituted 60.2% of all the isolates, and the most commonly isolated gram-negative was Escherichia coli (15%). The sensitivity rates of the isolated species were remarkably low for several antimicrobials used in the mild infection group. Conclusions: Based on our findings, several of the antimicrobials frequently used for empirical treatment, including some also recommended in the IDSA guidelines, would not be optimal for treating diabetic foot infections in Turkey. Although the IDSA guideline recommendations may be helpful to guide empiric antimicrobial therapy of DFIs, they should be adjusted to local conditions. (C) 2016 Elsevier Inc. All rights reserved

THE LONGITUDINAL EVOLUTION OF COVID-19 OUTCOMES AMONG HEMODIALYSIS PATIENTS: A NATIONWIDE MULTICENTRE CONTROLLED STUDY

Abstract Not Availabl