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Background Studies indicate that electrical stimulation of retinitis pigmentosa (RP) retina is beneficial. Quantum dots (QDs) can convert light to electrical stimulus and therefore may have therapeutic potential for RP. Methods This was an open-label, fellow eye-controlled, first-in-human safety study. Five adults with end-stage (arm A) and 15 with severe (arm B) RP received one or two intravitreal injections of 0.2 or 2μM cadmium/selenium 655 Alt QDs. Results No adverse events were attributed to QDs. In arm A, median best corrected visual acuity was unchanged. In arm B, mean best corrected visual acuity improved from 6/398 to 6/177, versus 6/147 to 6/144 in the fellow eye. Conclusion Intravitreal QDs can be safely administered to patients with RP. Vision appears to benefit and further validating studies are justified.Background Thromboangiitis obliterans (TAO) is a distal non atherosclerotic thrombotic vasculitis affecting tobacco smokers. The role of cannabis co-exposure remains controversial. The study aims to assess how cannabis consumption influences clinical presentation and outcome of TAO in tobacco smokers. Patients and methods TAO patients, according to Papa's criteria, were included in a retrospective bicentric study between the 1st January 2003 and the 1st march 2020. Clinical characteristics, arterial involvement at TAO diagnosis, vascular event and amputations during follow-up were analyzed according to cannabis consumption. Results Seventy-three patients with TAO patients were included. Forty-five patients were in Tobacco group (T) and 28 in Tobacco and cannabis group (T&C). Tobacco exposure was less important in T&C group than in T group (19.4±11.3 vs 31.6±16.6 pack-years) (p=0.005) and patients in T&C group were younger at TAO diagnosis than in T group (p=0.008). Patients in T&C group presented more claudication (33.3% vs 8.9%, p=0.01) and less upper limbs resting ischemia (25.9% vs 51.1%, p=0.04) than patients in the T group. No differences were found between groups with regard to arterial distribution. Amputation rate for patients who had at least one major or minor amputation did not differ between T and T&C group (25% vs 14.8%, p=0.38). Conclusions Cannabis consumption was associated with a younger age of TAO onset. However, it does not affect amputation-free survival, Tobacco exposure is less important in T&C patients; data of this bicentric study suggest that cannabis could be a cofactor of tobacco which accelerates TAO onset.SARS-CoV-2 is responsible for the 2020 global coronavirus disease 2019 (COVID-19) pandemic. In patients with COVID-19, multiple cardiovascular (CV) manifestations have been reported. SARS coronavirus 2 infection can lead to inflammatory CV disease first via takeover of the angiotensin-converting enzyme-2 enzyme as a cell receptor as well as the macrophage activation syndrome in severe illness. We review the CV manifestations of COVID-19 and therapeutics under investigation. We discuss the potential long-term CV sequelae after recovery from COVID-19 and the gaps in knowledge including the pathophysiological links between acute cardiac injury, myocardial inflammation and chronic cardiomyopathy. Future investigational efforts could result in significant diagnostic and therapeutic advances potentially impacting the broader field of chronic heart failure and cardiac recovery.Background First-pass reperfusion (FPR) is associated with favorable outcome after endovascular treatment. It is unknown whether this effect is independent of patient characteristics and whether FPR has better outcomes compared with excellent reperfusion (Expanded Thrombolysis in Cerebral Infarction [eTICI] 2C-3) after multiple-passes reperfusion. We aimed to evaluate the association between FPR and outcome with adjustment for patient, imaging, and treatment characteristics to single out the contribution of FPR. Methods and Results FPR was defined as eTICI 2C-3 after 1 pass. https://www.selleckchem.com/products/(-)-Epigallocatechin-gallate.html Multivariable regression models were used to investigate characteristics associated with FPR and to investigate the effect of FPR on outcomes. We included 2686 patients of the MR CLEAN (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands) Registry. Factors associated with FPR were as follows history of hyperlipidemia (adjusted odds ratio [OR], 1.05; 95% CI, 1.01-1.10), middle cerebrsociated with FPR were the experience of the interventionist, history of hyperlipidemia, location of occluded artery, and use of an aspiration device compared with stent thrombectomy.Background Abdominal wall hernias (AWHs) share common epidemiological characteristics with abdominal aortic aneurysms (AAAs), typically presenting in male population and older ages. Prior reports have associated those two disease entities. Our objective was to perform a systematic review and meta-analysis and examine whether AAA rates are higher among patients with AWH vs controls and whether the incidence of AWH was higher among patients with AAA vs patients without AAA. Methods We performed a systematic review and meta-analysis according to the PRISMA guidelines. The Medline database was searched up to July 31, 2020. A random effects meta-analysis was performed. Results In total, 17 articles and 738,972 participants were included in the systematic review, while 107,578 patients were eligible for the meta-analysis. Among four studies investigating the incidence of AAA in patients with hernias, AAA was more common in patients with hernias, compared to patients without hernias. [OR 2.53, 95% CI 1.24-5.16, I2=81.6%]. Among thirteen studies that compared patients with known AAA vs no AAA, the incidence of hernias was higher in patients with AAA, compared with patients without AAA [OR 2.27, 95% CI 1.66-3.09, I2=84.6%]. Conclusions Our study findings indicate that a strong association between AWH and AAA exists. AWHs could therefore be used as an additional selection criterion for screening patients for AAA, apart from age, gender, family history and smoking. The British Spine Registry (BSR) was introduced in May 2012 to be used as a web-based database for spinal surgeries carried out across the UK. Use of this database has been encouraged but not compulsory, which has led to a variable level of engagement in the UK. In 2019 NHS England and NHS Improvement introduced a new Best Practice Tariff (BPT) to encourage input of spinal surgical data on the BSR. The aim of our study was to assess the impact of the spinal BPT on compliance with the recording of surgical data on the BSR. A retrospective review of data was performed at a tertiary spinal centre between 2018 to 2020. Data were collated from electronic patient records, theatre operating lists, and trust-specific BSR data. Information from the BSR included operative procedures (mandatory), patient consent, email addresses, and demographic details. We also identified Healthcare Resource Groups (HRGs) which qualified for BPT. A total of 3,587 patients were included in our study. Of these, 1,684 patients were eligible for BPT.
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