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Comparison associated with A pair of Various Synthesis Strategies to Solitary Crystals of Superconducting Uranium Ditelluride.
Background Dural arteriovenous fistulas (DAVF) are characterized by pathologic shunts between meningeal arteries and venous sinuses, without nidus. Although many lesions are considered idiopathic, there may be an association with inflammatory processes, including sinus thrombosis, venous hypertension, craniotomy, trauma, and infections. Case description A 50 year-old female with an infectious complication of a dental implant evolved with an occipital DAVF. To the best of the authors' knowledge, this is the first case of a dental implant-related DAVF reported in the medical literature. Conclusions Physicians should be aware of the possibility of DAVF formation after craniofacial infections. Better understanding of the ethiopathogenesis of this type of lesion is required to avoid and treat potential complications.Background Spindle cell oncocytomas are extremely rare neoplasms of the sellar, para- and suprasellar regions which can frequently mimic pituitary adenomas. Less than 50 cases have been ever reported in literature and there is no consensus on best treatments to be provided. Case description We hereby present a challenging case of sellar and suprasellar spindle cell oncocytoma in a patient of 64 years. The patient - presented with hydrocephalus, hypopituitarism and visual deficit - underwent urgent transsphenoidal (TNS) resection of the mass, which was aborted for massive life-threating bleeding. The patient received ventriculoperitoneal shunt with relief of symptoms. An endovascular embolization of tumor feeders from the distal portion of the right internal maxillary artery (IMA) - in particular the sphenopalatine artery (SPA) - was then performed and a second-look TNS surgery was feasible. Patient was discharged in optimal clinical condition, recovered both endocrinological and visual deficits and is now in follow-up. Conclusions We found that the oncocytoma was radiologically and clinically comparable to a pituitary adenoma, except for higher representation of vasculature. According to our recent experience and review of the literature, we believe that surgery (trans-sphenoidal or transcranial approach) is the recommended treatment in those who are symptomatic and preoperative embolization might be a suitable option to reduce intraoperative bleeding and increase radicality.Objective The repair of unruptured intracranial aneurysms has increased since 2000. In this study, we analyzed the Nationwide Readmission Database (NRD) to determine the rate of 90-day readmission. Our objective is to examine readmission trends after unruptured aneurysm repair. Methods This study used the 2013 and 2014 NRD. Patient data included standard demographic, comorbidity, and payer information. We selected patients who had undergone microsurgical or endovascular repair for a non-ruptured aneurysm. We excluded patients who were under 18 years of age, had a subarachnoid hemorrhage or discharged to home the same day. Readmission was calculated by counting the number of days between the end of the index visit and earliest readmission date. Results A total of 2,180 of 29,694 patients (7.34%) were readmitted within 90 days of their initial hospitalization. They were younger (mean=52.6; CI 51.4,53.8) than patients not readmitted (57.4; CI 57.1,57.8) (p less then 0.0001). In total, endovascular repair was more frequent than microsurgery (79.8% vs. 20.2%). Mean days to readmission was 41.8 (CI 39.7,43.9), and was higher for females (p less then 0.0001). The odds ratio for readmission after an endovascular repair was 1.54 (CI 1.27,1.86). Conclusions In this study of over 28,000 patients treated for an unruptured aneurysm, the 90-day readmission rate was 7.34%. Endovascular patients had higher odds of readmission than microsurgical patients. Patients with common medical comorbidities (hypertension, obesity, renal failure, diabetes) were less likely to be readmitted than patients without those conditions.Objective To determine the effect of offering a subset of the Emergency Neurological Life Support (ENLS) course modules on provider knowledge and self-reported confidence in acute management of neurocritically ill patients in a low-middle income country (LMIC). Methods Eight ENLS modules were provided by in person lecture, using English to Khmer translated slides and a medical translator, to physicians and nurses of 2 hospitals in Phnom Penh, Cambodia in May 2019. Providers included emergency, neurology, neurological surgery and general intensive care. Demographics, pre and post-course knowledge of ENLS content areas, and pre and post-course confidence in managing neurocritically ill patients were assessed. Data was pooled across both hospitals for analysis. Results A total of 57 healthcare providers were approached for participation; 52 (25 physicians, 27 nurses) participated; 45 completed all study instruments. Pre and post-course knowledge scores showed no significant differences between providers. Post-course, 37/45 (82.2%) participants reported that the content had prepared them for acute management of neurocritically ill patients. Satisfaction with module content ranged from 77.8-80.0% per module. For the 8 modules, a majority of participants agreed that course material had provided them with knowledge and skills to provide acute care for patients' neurological emergencies (68.4%-88.6%). Conclusions Provision of ENLS course module content increased LMIC provider self-reported knowledge and confidence in acute management of neurocritically ill patients immediately post-course. Tailoring ENLS course presentation to a particular LMIC setting warrants additional investigation, as does the effect of ENLS course training on neurocritically ill patient outcomes in the LMIC setting.Background Mycobacterium avium complex (MAC) and Achromobacter xylosoxidans (AX) are uncommon sources of neurosurgical infections, particularly in immunocompetent hosts. We report the first published case of intracranial AX abscess and polymicrobial AX-MAC abscess, as well as the fourth MAC abscess in a non-immunocompromised patient. selleck inhibitor Methods This case report was conducted via retrospective chart review. A literature review was completed in compliance with Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Results Ten years following mucocele resection, a 60-year-old man presented with sinus congestion and headache. Head imaging revealed a left frontal lesion, abutting the cribriform plate and ethmoid roof. The patient had a left frontal craniotomy for abscess drainage. Intraoperative cultures demonstrated polymicrobial growth of AX and MAC, managed with antimicrobial therapy and staged skull base reconstruction. Three cases of MAC abscess and sixteen cases of AX ventriculitis or meningitis have been reported in immunocompetent patients. All MAC cerebral abscesses occurred in adults, one of whom succumbed to the infection. Of the nine AX meningitis cases, four occurred in neonates and two in pediatric patients. Six of the seven AX ventriculitis cases occurred after neurosurgical operations at the same hospital from contaminated chlorhexidine basins. Except for the neonates, AX ventriculitis or meningitis patients had undergone neurosurgery or had a history of cranial trauma. There were no reports of polymicrobial AX-MAC intracranial abscess. Conclusions AX and MAC are rare causes of intracranial infection. Patients with these pathogens identified in the CNS require a multidisciplinary approach for successful management.Objective Clinical practice guidelines recommend questionnaires with short recall. We compare responsiveness of ecological momentary assessments (EMA) and retrospective assessments of thyroid-related quality of life. Study design and setting Patients with newly diagnosed thyrotoxicosis completed retrospective Thyroid-related Patient-Reported Outcome measures (ThyPRO) with 4-week and 1-week recall, respectively, and three daily EMAs for four weeks at time of inclusion and again after treatment (N=115). Magnitude of change and statistical power (F-test statistics) were compared. Two designs were applied to the same data Design 1 mimicked the practical realities of clinical trials by comparing 4-week recall ThyPRO administered at time of inclusion with EMA initiated at time of inclusion and collected prospectively for one week, thus not covering the same time frame nor duration. Design 2 compared assessments covering the same 4 weeks following inclusion. Results Design 1 estimated change and statistical power were significantly larger for 4-week ThyPRO compared with EMA. Design 2 retrospective assessments and EMA had comparable change and power. Repeated 1-week ThyPRO administrations increased the statistical power. Conclusion Selecting the optimal time frame for evaluation proved crucial for responsiveness. EMA did not provide higher responsiveness than retrospective measures in either design. Repeated 1-week ThyPRO administrations increased statistical power.Nanoparticles are promising bioengineering platforms facilitating various consumer product formulations, including packaged food, electrical, biosensor and biomedical tools. The unique surface and physicochemical properties of amorphous nanosilica supports advanced nano-biomolecular applications for various manufacturing, biotechnology, and healthcare industries including cosmetics, packaging, implants, drug delivery systems and cancer diagnostics. The increased technological and economic benefits of amorphous nanosilica, raises concerns regarding their adverse biological effects on humans. The cellular mechanisms underlying amorphous nanosilica internalization, evasion of biological barriers, inadvertent nano-bio interactions and unexpected long term exposure effects must be taken into consideration from the diverse ecosystems and human safety aspects. Recent research studies reveal cytotoxic, inflammatory and immunomodulatory effects of amorphous nanosilica particles. Our review focuses on studies demonstrating hazardous impact of amorphous nanosilica/bio-systems interface on the cellular and biochemical processes. The review further seeks to evaluate amorphous nanosilica-induced cytotoxicity, innate immune responses, inflammation and immune related dysfunctions, and discuss open research questions related to the use of amorphous nanosilica in biomedicine.Doxorubicin (DOX) is one of the most effective and irreplaceable chemotherapeutic agents but its clinical use is limited due to its cardiotoxicity. Glycyrrhizin(GL) has been applied to liver disorders for long. However, little is known that if GL could be meaningful in attenuating cardiotoxicity. The aim of this study is to investigate the cardioprotective effects of GL in DOX-induced cardiotoxicity (DIC) and the underlying mechanism. Here, H9c2 cardiomyoblasts, Neonatal rat cardiomyocytes (NRCMs), and Rats were introduced as test models. A single dose of 20 mg/kg DOX (i.p.) was applied to induce acute cardiotoxicity in vivo, as reflected by growth inhibition, increased levels of AST and CK-MB, and reduction of SOD activity, while GL (25 or 50 mg/kg/d, 14 d, i.p.) could counteract these effects. Moreover, pre-incubation with GL (0.8 mM for 12 h) in H9c2 cells protected against DOX-induced cytotoxicity, oxidative stress and depolarization of mitochondrial membrane potential (MMP). Besides, Western blot analysis showed that DOX upregulated the expression of LC3 II and p62 whereas GL reversed that both in vitro and in vivo and improved the obstructed autophagy flux in DOX-treated H9c2 cells with an autophagy inhibitor Bafilomycin A1 (Baf A1, 50 nM, 2 h).
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