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onths and DFAZ area one day after the operation in the RRDCD group was significant. Conclusion Choroidal lesions in RRDCD patients may have an acute pathological effect on ischaemia of the deep retinal capillary network. The DFAZ area in RRDCD patients can be used to predict and evaluate postoperative visual acuity.Purpose To investigate the risk factors associated with progressive fibrovascular proliferation (FVP) in proliferative diabetic retinopathy (PDR). Methods We retrospectively reviewed the clinical data of patients who underwent pars plana vitrectomy for PDR between August 2017 and October 2019 at our department of ophthalmology. The FVP was divided into five grades based on the coverage area of proliferative membrane. Then we compared the patients with different severities of FVP to analyze the risk factors for higher grade of FVP in PDR. Results Univariate analysis showed that positive urinary protein (p = 0.007), higher levels of serum blood urea nitrogen (BUN) (p less then 0.001) and serum creatinine (p less then 0.001), more severe stage of estimated glomerular filtration rate (p less then 0.001), age less then 45 years (p = 0.005), longer duration of diabetic retinopathy (p = 0.007), history of hypertension (p = 0.034) and smoking (p = 0.008) were related to FVP grade ≥ 3. Multivariate analysis showed that the level of BUN, age less then 45 years and smoking were independent risk factors for FVP grade ≥ 3 in PDR patients. Conclusion This study demonstrated that BUN (odds ratio [OR] = 1.318, 95% confidence interval [CI] = 1.150-1.511, p less then 0.001), age ≤ 45 years (OR = 3.774, 95% CI = 1.762-8.082, p = 0.001) and smoking (OR = 2.111, 95% CI = 1.040-4.288, p = 0.039) were independent risk factors for progressive FVP in PDR among northeastern Chinese patients.Introduction Lipid-lowering therapy of elderly patients with coronary artery disease (CAD) inherits a medical challenge, as these patients experience a higher absolute risk reduction but may be more prone to side effects. We aimed to evaluate the treatment patterns in lipid-lowering therapy, comparing CAD patients above versus below 75 years of age. Methods We retrospectively included patients with known CAD admitted to the West German Heart and Vascular Center. Low-density lipoprotein cholesterol (LDL-C) levels and intensity of statin therapy (based on dosage and type of statin) were assessed from all available hospital records. Results We included 1500 patients (mean age 68.4 ± 11.2 years, 75.7% male) from 813 referring treating primary care physicians in 98 cities of Germany in our analysis. A total of 982 patients were less then 75 years of age, whereas 518 were ≥ 75 years of age. LDL-C levels did not differ between age groups (≥ 75 96.0 ± 35.1 mg/dl; less then 75 98.9 ± 35.8 mg/dl, p = 0.13). Simvastatin was most frequently prescribed in both age groups (54.9% vs. 50.7% for age ≥ 75 vs. less then 75 years, p = 0.16), followed by atorvastatin (31.6% vs. 33.3%, p = 0.53). Elderly patients received slightly lower statin doses as compared to patients less then 75 years of age (28.8 ± 12.8 mg vs. 31.4 ± 13.7 mg, p = 0.0007). Interestingly, patients ≥ 75 years of age achieved LDL-C less then 70 mg/dl slightly more frequently than younger patients (24.0% vs. 20.1%, p = 0.09), while only a minority had LDL-C less then 55 mg/dl in both age groups. Excluding patients with myocardial infarction at presentation, creatine kinase levels were not relevantly different between age groups (131.9 ± 450.0 U/l vs. 127.5 ± 111.4 U/l, p = 0.78). Conclusion Patients ≥ 75 years of age receive lower doses of statin therapy and reach slightly lower LDL-C levels. However, the majority of elderly patients miss current recommendations regarding LDL-C thresholds.Early oral squamous cell carcinoma (SCC) has a propensity for lymph-node metastasis. To address or not to address the neck electively during the ablative surgery has been an ongoing debate. In recent years, some practice-changing trial and systematic reviews have emerged and put to rest the discussion of elective neck dissection versus neck observation. Today elective neck is not a mere staging procedure. It has a definitive survival advantage, but the pathological basis of this advantage has not been elaborated. Understanding this could help answer some of the critical aspects of tumour spread.Purpose Revision surgery for correcting benign laryngotracheal stenosis is challenging and it gets complicated in patients with comorbidities. To improve results in such cases, we describe a new technique of stabilizing the trachea by splinting it to the clavicle on both sides. Methods Retrospective case series. Results Three patients received claviculotracheopexy to maintain their tracheal static. The surgery offers an immediate and optimal support to an unstable trachea. Conclusion Claviculotracheopexy can be used as a complementary procedure in complex airway reconstructions.Background and objective The world is currently experiencing the Coronavirus Disease-19 (COVID-19) pandemic. There is no approved drug for the definitive treatment of the disease. Various drugs are being tried for the treatment of COVID-19, including hydroxychloroquine (HCQ). This study was performed to systematically review the therapeutic role of HCQ in COVID-19 from the available literature. Methods PubMed, Embase, ClinicalTrials.gov, ICTRP (WHO), Cochrane Library databases, and two pre-print servers (medRxiv.org and Research Square) were searched for clinical studies that evaluated the therapeutic role of HCQ on COVID-19 until 10 May 2020. The available studies were critically analyzed and the data were extracted. Results A total of 663 articles were screened and 12 clinical studies (seven peer-reviewed and published studies and five non-peer-reviewed studies from pre-print servers) with a total sample size of 3543 patients were included. selleck chemicals Some of the clinical studies demonstrated good virological and clinical outcomes with HCQ alone or in combination with azithromycin in COVID-19 patients, although the studies had major methodological limitations. Some of the other studies showed negative results with HCQ therapy along with the risk of adverse reactions. Conclusion The results of efficacy and safety of HCQ in COVID-19, as obtained from the clinical studies, are not satisfactory, although many of these studies had major methodological limitations. Stronger evidence from well-designed robust randomized clinical trials is required before conclusively determining the role of HCQ in the treatment of COVID-19. Clinical prudence is required in advocating HCQ as a therapeutic armamentarium in COVID-19.

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