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005 for most comparisons). However, the relief of nasal obstruction was more pronounced in patients undergoing combined intervention at all postoperative visits, except at the 1st follow-up session (P˂0.005). Nasal symptoms of septoplasty alone group began to deteriorate over the period between month 24 and month 48. In contrast, patients undergoing the combined surgery steadily showed symptomatic improvement over the whole period of study. Conclusions A turbinate reduction surgery should be conducted along with septoplasty to achieve better results in cases suffering from deviated nasal septum with concomitant hypertrophied inferior turbinate.Myelination in the central nervous system depends on interactions between axons and oligodendrocyte precursor cells (OPCs). BIBW2992 Action potentials in an axon can be followed by release of biologically active substances, like glutamate, which can instruct OPCs to start myelination. Myelin Basic Protein (MBP) is an "executive molecule of myelin" required for the formation of compact myelin. As cells of the oligodendrocyte lineage (OLCs) are capable of producing MBP in pure oligodendrocyte cultures, i.e. without neurons, we investigated Ca2+ signaling in developing OLCs in cultures. We show that spontaneous Ca2+ transients (CTs) occur at very low frequency in both bipolar OPCs and mature oligodendrocytes. In contrast immature OLCs (imOLCs), cells with several thick processes, demonstrate a relatively high frequency of CTs. Moreover, CT frequency in imOLC processes is much higher as compared with the somatic CT frequency. Somatic CTs are almost completely blocked by thapsigargin, an antagonist of sarco-(endo-) plasmic reticulum Ca2+ ATPase, and ryanodine, a blocker of ryanodine receptors, indicating an involvement of Ca2+ release from the endoplasmic reticulum. Ryanodine strongly reduces CT frequency in imOLC processes. Ouabain, an antagonist of Na+, K+-ATPase (NKA), applied at low concentration increases CT frequency, while KB-R7943, a blocker of reverse mode of Na+, Ca2+ exchanger (NCX), decreases CT frequency. We suggest that local RyR-NCX-(NKA?) interaction might underlie the generation of CTs in imOLC in the absence of neurons, and this activity influences oligodendrocyte maturation.Background Although qualitative studies have been conducted to identify barriers and facilitators that influence the pain management of older adults with dementia, as far as we know, only a very recent study (Andrews et al., 2019) has used participatory action research (PAR) as a methodology for studying pain management. It allows nurses to examine and improve their practice based on their realities and within their context. Aim To reflect on nursing practice and identify facilitators and barriers in the management of pain in older adults with dementia and to propose actions for improvement. Design We used qualitative participatory action research. Participants/settings Ten nurses from the geriatric acute care unit of a university hospital in Spain were recruited through convenience sampling. Methods Data were generated through a written questionnaire and three focus groups. Results One of the main facilitators the participants identified was professional experience. The main barriers they identified were lack of knowledge and skills and lack of time. The participants proposed two main improvements (1) a training program consisting of three courses (pain evaluation and management, dementia and pain, and pharmacology) and (2) the creation of a specific register for nurses to record patients' pain. Conclusions Involving nurses directly in research on their practices can result in precise proposals for improvements based on their needs and oriented toward improving the quality of care. Moreover, our results confirm previous findings in other countries.Background Immune checkpoint inhibitors are now standard of care for many patients with metastatic renal cell carcinoma (mRCC) and metastatic urothelial carcinoma (mUC). Given real-world limitations in programmed death-ligand 1 (PD-L1) testing, concordance studies between PD-L1 assays are needed. We undertook comparisons of Dako 28-8 and Ventana SP142 assays in mRCC and Dako 22C3 and Ventana SP263 assays in mUC. Patients and methods Thirty-two patients with mRCC and 18 patients with mUC who had received immune checkpoint inhibitor therapy were identified. Formalin-fixed paraffin-embedded tumor samples for patients with mRCC were evaluated with Dako 28-8 and Ventana SP142 PD-L1 immunohistochemistry assays. For patients with mUC, formalin-fixed paraffin-embedded tumor samples were evaluated with Dako 22C3 and Ventana SP263 PD-L1 immunohistochemistry assays. Results The majority (29/32; 91%) of mRCC cases were concordant between assays. The majority (17/18; 94%) of mUC cases were also concordant between assays. link2 Conclusions There was strong concordance between PD-L1 assays chosen for comparison in both mRCC and mUC, with similar performance characteristics. One limitation is the small number of cases in this study; larger comparison studies are needed for this biomarker in mRCC and mUC.Background Tyrosine kinase inhibitor-based adjuvant therapy showed no survival benefits for patients with high-risk nonmetastatic renal cell carcinoma (nmRCC). link3 Five randomized immune-oncology checkpoint inhibitor trials are ongoing. We assessed the effect of stage, grade, and histologic type on cancer-specific mortality (CSM) in candidates for 1 of the 4 North American ongoing immune-oncology checkpoint inhibitor trials of high-risk nmRCC. Patients and methods From the Surveillance, Epidemiology, and End Results database (2001-2015), we identified patients who had undergone surgery for nmRCC and had met the inclusion criteria for the PROSPER RCC (nivolumab in treating patients with localized kidney cancer undergoing nephrectomy), CheckMate 914 (a study comparing the combination of nivolumab and ipilimumab versus placebo in participants with localized renal cell carcinoma), KEYNOTE-564 [safety and efficacy study of pembrolizumab (MK-3475) as monotherapy in the adjuvant treatment of renal cell carcinoma post neeatures (HR, 5.5; P less then .001). Among the 4 random samples, the difference in the qualifying criteria resulted in the greatest versus progressively lower CSM rates in the IMmotion010, KEYNOTE-564, CheckMate 914, and PROSPER RCC trials, respectively (P less then .001). Conclusions Our findings indicate that participation in adjuvant immunotherapy trials should be predominantly encouraged for patients with high-grade stage T3, T4, and N1 and patients with any stage with sarcomatoid pathologic features.Purpose Marsupialization, designed to reduce the mandibular cyst volume, has continued to debated regarding its influence on the healing of the related bone cavity. The aim of the present study was to evaluate the 3-dimensional radiographic variation over time in mandibular odontogenic cystic lesions after marsupialization and assess the correlations between these variations and variables that can affect the procedure. Materials and methods We planned a retrospective cohort study. The predictor variables were the treatment duration, preoperative volume, patient age, histologic type, and number of preoperative residual bony walls. The outcomes variables were the postoperative volume reduction and the daily reduction rate calculated using computed tomography (CT) from before to after marsupialization using software designed for volumetric reconstruction and measurement of cyst-related bone defects. The descriptive and bivariate statistics were computerized, and the significance level was set at P = .05. Results The sample included 15 patients (12 men and 3 women; mean age, 51.6; range, 27 to 85 years) affected by keratocysts (n = 6), dentigerous cysts (n = 6), and radicular cysts (n = 3) who had undergone marsupialization. The median duration of marsupialization was 406 days (25th to 75th percentile, 276 to 519). The mean ± standard deviation (SD) pre- and postdecompression volumes were 6,908.27 ± 2,669.058 and 2,468.13 ± 1,343.517 mm3, respectively (P .05). Conclusions Marsupialization appears useful in improving the healing of cyst-related bone defects in mandibles, especially larger defects. Further studies with a wider sample size would add more knowledge to this topic.Head and neck cancer is increasing globally owing to rising rates of tobacco use and human papillomavirus infection. Today, cancer is the leading cause of death and disabilities in developed countries and the second leading cause of death in countries with developing economies. Understanding the global landscape of head and neck cancer will empower oral and maxillofacial surgeons to play a critical role among patients and societal education regarding the importance of addressing modifiable risk factors and continuing to play an important role in the diagnosis and management of head and neck cancer.Addressing access to oral health care in many low- to middle-income countries is a complicated issue. Oral and maxillofacial surgeons may help engage with vulnerable populations through carefully planned dentoalveolar mission trips. The process of planning a mission includes selecting a population and identifying their unique needs, designing clinic layouts and workflows, team preparation, collection of supplies, fundraising, and advertising. During the mission, methods for protecting privacy, delivering treatment that is standard of care, and sanitation/sterilization options are reviewed. Ethical considerations include avoiding exploitation of vulnerable populations, offending local hosts, need for data collection, and long-term mission sustainability.To prepare global surgeons, academic institutions have created training programs that provide opportunities to develop foundational clinical knowledge, pursue academic inquiry, build surgical infrastructure and capacity, and become advocates and collaborators in resource-limited settings. Academic institutions can create a short course in global surgery, global surgery rotation, global surgery fellowship, or integrated global surgery residency. Global surgery training programs must account for ethics of global surgery engagement, sources of funding, structures for professional advancement, and trainee-appropriate partnerships. Global surgery training must include the establishment of accreditation systems, development of integrated training programs, and institutional investment in global surgery education.Global health has evolved to focus on reducing health inequity and obtaining the highest attainable standard of health for all people. To do this, a range of actors now pursue interventions and policy with an eye toward global targets that place strong emphasis on improving health systems. Within global health, global surgery has sought to delineate the burden of surgical disease and propose policy to improve access to surgery. Oral and maxillofacial surgery has been underrepresented in global health but has a vital role in reducing the global health inequity attributable to the impact of oral and craniofacial conditions.Introduction and objectives Very early (1-3 months) discontinuation of dual antiplatelet therapy (DAPT) has been recently proposed in percutaneous coronary interventions with modern drug-eluting stents (DES), with contrasting results. The aim of the present meta-analysis was to evaluate the prognostic impact of very short DAPT regimens vs the standard 12-month regimen in patients undergoing percutaneous coronary intervention with new DES. Methods Literature and main scientific session abstracts were searched for randomized clinical trials (RCT). The primary efficacy endpoint was mortality, and the primary safety endpoint was major bleeding events. A prespecified analysis was conducted according to the long-term antiplatelet agent. Results We included 5 RCTs, with a total of 30 621 patients; 49.97% were randomized to very short (1-3 months) DAPT, followed by aspirin or P2Y12I monotherapy. Shorter DAPT duration significantly reduced the rate of major bleeding (2% vs 3.1%, OR, 0.62; 95%CI, 0.46-0.84; P=.002; Phet=.