First-attempt awake tracheal intubation success rate using a hyperangulated unchannelled videolaryngoscope vs. a channelled videolaryngoscope in patients with anticipated difficult airway: a randomised controlled trial.

INTRODUCTION: There is uncertainty about the optimal videolaryngoscope for awake tracheal intubation in patients with anticipated difficult airway. The use of channelled and unchannelled videolaryngoscopy has been reported, but there is a lack of evidence on which is the best option. METHODS: We conducted a randomised clinical trial to compare the efficacy of the C-MAC D-Blade® vs. Airtraq® in adult patients (aged ≥ 18 y) scheduled for elective or emergency surgery under general anaesthesia with anticipated difficult airway who required awake tracheal intubation under local anaesthesia and conscious sedation. The primary endpoint was the first-attempt tracheal intubation success rate. Secondary outcomes included the overall success rate; number of tracheal intubation attempts; Cormack and Lehane glottic view; level of difficulty (visual analogue score); patient discomfort (visual analogue score); and incidence of complications. RESULTS: Ninety patients (70/90 male (78%); mean (SD) age 65 (12) y) with anticipated difficult airways were randomly allocated to C-MAC D-Blade or Airtraq videolaryngoscopy. First-attempt successful tracheal intubation rate was higher in patients allocated to the C-MAC D-Blade group compared with those allocated to the Airtraq group (38/45 (84%) vs. 28/45 (62%), respectively; p = 0.006). The proportion of patients' tracheas that were intubated at the second and third attempt was 4/45 (9%) and 3/45 (7%) in those allocated to the C-MAC D-Blade group compared with 14/45 (31%) and 1/45 (2%) in those allocated to the Airtraq group (p = 0.006). There was no significant difference in overall tracheal intubation success rate (C-MAC D-Blade group 45/45 (100%) vs. Airtraq group 43/45 (96%), p = 0.494). DISCUSSION: In patients with anticipated difficult airway, first-attempt awake tracheal intubation success rate was higher with the C-MAC D-Blade compared with Airtraq laryngoscopy. No difference was found between the two videolaryngoscopes in overall tracheal intubation success rate.

Intracranial graft of bioresorbable polymer scaffolds loaded with human Dental Pulp Stem Cells in stab wound murine injury model.

The prevalence of central nervous system (CNS) dysfunction as a result of disease or trauma remains a clinically unsolved problem which is raising increased awareness in our aging society. Human Dental Pulp Stem Cells (hDPSCs) are excellent candidates to be used in tissue engineering and regenerative therapies of the CNS due to their neural differentiation ability and lack of tumorigenicity. Accordingly, they have been successfully used in animal models of spinal cord injury, stroke and peripheral neuropathies. The ideal therapy in brain injury should combine strategies aiming to protect the damaged lesion and, at the same time, accelerate brain tissue regeneration, thus promoting fast recovery while minimizing side or long-term effects. The use of bioresorbable nanopatterned poly(lactide-co-ɛ-caprolactone) (PLCL) polymeric scaffolds as hDPCSs carriers can represent an advantage for tissue regeneration. In this chapter, we describe the surgical procedures to implant functionalized bioresorbable scaffolds loaded with hDPSCs to improve the brain lesion microenvironment in an intracranial stab wound injury model severing the rostral migratory stream (RMS) that connects the brain subventricular zone (SVZ) and the olfactory bulb in nude mice. Additionally, we also describe the technical steps after animal sacrifice for histological tissue observation and characterization.

Análise bibliométrica da produção científica global em chikungunya: perspectiva da Vigilância em Saúde / Bibliometric analysis of global scientific production on chikungunya: Health Surveillance perspective / Análisis bibliométrico de la producción científica mundial sobre chikungunya: una perspectiva de Vigilancia Sanitária

Chikungunya, arbovirose que provoca febre e artralgia debilitante, demonstra potencial crônico e incapacitante por longos períodos, não havendo vacinas ou terapias específicas. Recentemente, a doença evoluiu da condição negligenciada para uma ameaça à saúde pública, impactando milhões de pessoas em regiões tropicais e subtropicais. Este estudo analisa a produção do conhecimento sobre a Chikungunya, na perspectiva da Vigilância em Saúde. Trata-se de metodologia exploratória-descritiva, com análise bibliométrica. Realizou-se a coleta nas bases Scopus e Web of Science para artigos de 2008 a 2022. A análise revelou uma série temporal de produção destacando a contribuição de Estados Unidos, Brasil e França. Identificaram-se como áreas mais produtivas: doenças transmissíveis, medicina tropical e parasitologia, fundamentais à Vigilância em Saúde e ao planejamento de políticas públicas. Quanto aos pesquisadores, Weaver, Scott C., Failloux, Anna-Bella e De Lamballerie, Xavier foram relevantes no cenário global, indicando a importância da colaboração e da abordagem interdisciplinar.

Chikungunya, an arbovirus that causes fever and debilitating arthralgia, has potential to be chronic and incapacitating for long periods, and there are no vaccines or therapies available for it. Recently, the disease has evolved from a neglected condition to public health threat, impacting millions in tropical and subtropical regions. This study analyzed the knowledge production about chikungunya, from the perspective of Health Surveillance, using an exploratory-descriptive methodology and bibliometric analysis. Articles from 2008 to 2022 were collected from Scopus and Web of Science databases. The analysis showed a production time series, highlighting the contribution of United States, Brazil, and France. The most productive areas were identified as: communicable diseases, tropical medicine and parasitology, which are fundamental to Health Surveillance and public policy planning. Regarding researchers, Weaver, Scott C., Failloux, Anna-Bella, and De Lamballerie, Xavier were relevant in the global scenario, indicating the importance of collaboration and of the interdisciplinary approach.

El chikungunya, arbovirus que causa fiebre y artralgia debilitante, tiene potencial de ser crónico e incapacitante por largos periodos, todavía no hay vacunas ni terapias. Recientemente, la enfermedad ha pasado de afección desatendida a amenaza para la salud pública, afectando a millones en regiones tropicales y subtropicales. Este estudio analiza la producción de conocimientos sobre chikungunya, desde la perspectiva de la Vigilancia Sanitaria. Se utilizó una metodología exploratoria-descriptiva con análisis bibliométrico. Se recompilaron artículos de Scopus y Web of Science, 2008-2022. El análisis reveló una serie temporal de producción, destacando la contribución de EEUU, Brasil y Francia. Se identificaron como áreas más productivas: enfermedades transmisibles, medicina tropical y parasitología, fundamentales para la Vigilancia Sanitaria y la planificación de políticas públicas. En cuanto a los investigadores, Weaver, Scott C., Failloux, Anna-Bella y De Lamballeire, Xavier fueron relevantes en el escenario global, indicando la importancia de la colaboración y del enfoque interdisciplinario.

Polyproline peptide targets Klebsiella pneumoniae polysaccharides to collapse biofilms.

Hypervirulent Klebsiella pneumoniae is known for its increased extracellular polysaccharide production. Biofilm matrices of hypervirulent K. pneumoniae have increased polysaccharide abundance and are uniquely susceptible to disruption by peptide bactenecin 7 (bac7 (1-35)). Here, using confocal microscopy, we show that polysaccharides within the biofilm matrix collapse following bac7 (1-35) treatment. This collapse led to the release of cells from the biofilm, which were then killed by the peptide. Characterization of truncated peptide analogs revealed that their interactions with polysaccharide were responsible for the biofilm matrix changes that accompany bac7 (1-35) treatment. Ultraviolet photodissociation mass spectrometry with the parental peptide or a truncated analog bac7 (10-35) reveal the important regions for bac7 (1-35) complexing with polysaccharides. Finally, we tested bac7 (1-35) using a murine skin abscess model and observed a significant decrease in the bacterial burden. These findings unveil the potential of bac7 (1-35) polysaccharide interactions to collapse K. pneumoniae biofilms.

Application of BactTiter-Glo ATP bioluminescence assay for Mycobacterium tuberculosis detection.

BACKGROUND: Tuberculosis (TB), caused by Mycobacterium tuberculosis (MTB), remains a global health threat, necessitating faster and more accessible diagnostic methods. This study investigates critical parameters in the application of a commercial ATP bioluminescence assay for the detection of MTB. METHOD: Our objective was to optimize the ATP bioluminescence protocol using BacTiter-Glo™ for MTB, investigating the impact of varying volumes of MTB suspension and reagent on assay sensitivity, evaluating ATP extraction methods, establishing calibration curves, and elucidating strain-specific responses to antimicrobial agents. RESULTS: ATP extraction methods showed no significant improvement over controls. Calibration curves revealed a linear correlation between relative light units (RLU) and colony-forming units (CFU/mL), establishing low detection limits. Antimicrobial testing demonstrated strain-specific responses aligning with susceptibility and resistance patterns. CONCLUSION: Our findings contribute to refining ATP bioluminescence protocols for enhanced MTB detection and susceptibility testing. Further refinements and validation efforts are warranted, holding promise for more efficient diagnostic platforms in the future.

Diagnostic and prognostic contribution of DPD scintigraphy in transthyretin V30M cardiac amyloidosis.

BACKGROUND: Early diagnosis and prognostic stratification of cardiac transthyretin amyloidosis are crucial. Although 99mTc 3,3-diphosphono-1,2-propanedicarboxylic acid (DPD) scintigraphy is the preferred method for the non-invasive diagnosis, its accuracy appears to be limited in transthyretin amyloidosis protein (ATTR) V30M mutation. Furthermore, its prognostic value in this mutation is unknown. This study investigated the diagnostic value of DPD scintigraphy to detect ATTR cardiomyopathy in V30M mutation and explored its prognostic value regarding mortality. METHODS: A total of 288 ATTR V30M mutation carriers (median age: 46 years; 49% males) without myocardial thickening (defined as septal thickness ≥13mm) attributable to other causes and who underwent DPD scintigraphy were enrolled. ATTR cardiomyopathy was defined by septal thickness ≥13mm and at least one of the criteria: late heart-to-mediastinum (H/M) 123I-metaiodobenzylguanidine (MIBG) uptake ratio <1.60; electrical heart disease or biopsy-documented amyloidosis. RESULTS: ATTR cardiomyopathy was identified in 41 (14.2%) patients and cardiac DPD uptake in 34 (11.8%). During a mean follow-up of 33.6 ± 1.2 months, 16 patients died (5.6%). Mortality was 14 times higher in patients with ATTR cardiomyopathy, 13 times higher in those with DPD uptake and 10 times higher in those with late H/M MIBG <1.60. The combined assessment of septal thickness and cardiac DPD uptake improved risk stratification: patients without septal thickening and without DPD retention had an excellent prognosis while those who presented either or both of them had a significantly worse prognosis, with 5-year mortality rates ranging from 39.9 to 53.3%. CONCLUSIONS: DPD scintigraphy is useful for prognostic stratification of ATTR V30M mutation carriers. Patients without septal thickening and no DPD uptake present the best prognosis compared to those with any signs of cardiac involvement.

Reliability and validity of remote Life Space Assessment: LSA in persons with chronic stroke / Confiabilidade e validade da escala Life Space Assessment aplicada remotamente: LSA em pacientes com AVC crônico

Abstract Background StepWatch Activity Monitor (SAM) is used to measure the mobility of chronic hemiparetic patients and the Life Space Assessment (LSA) scale was developed to assess the displacement of hemiparetic patients in different contexts through self-reporting. Studies that apply the LSA remotely and correlate it with the number of steps measured by the SAM were not found. Objective To evaluate the measurement properties of the LSA applied remotely and to evaluate the correlation between the LSA scale score and the number of steps measured by the SAM in post-stroke chronic hemiparetic patients. Methods Nineteen patients participated in the study. The LSA scale was applied remotely and later, face to face. The SAM measured the steps taken by the participants over a period of three consecutive days. The correlation between the LSA and the SAM was performed using Pearson's correlation. The measurement properties calculated of remote LSA were the intraclass correlation coefficient (ICC), Cronbrach's alpha, standard error of measurement (SEM), and smallest real difference (SRD). Results The reproducibility of the LSA scale between remote and face-to-face applications was considered excellent with ICC = 0.85 (IC 95% 0.62-0.94); SEM = 8.4; SRD = 23.2, and Cronbach's alpha = 0.85. The correlation between SAM and LSA was positive, considered moderate (r = 0.51) and significant (p = 0.025). Conclusion The LSA is a reproducible measure for post-stroke chronic hemiparetic patients even if applied remotely and can be used as a remote measurement for mobility in a real-world environment for people with chronic hemiparesis after stroke.

Resumo Antecedentes O StepWatch Activity Monitor (SAM) é utilizado para medir a mobilidade de pacientes hemiparéticos crônicos e a escala Life Space Assessment (LSA) avalia o deslocamento de pacientes hemiparéticos em diferentes contextos por meio de autorrelato. Não foram encontrados estudos que tenham aplicado a LSA remotamente nem que a correlacionam com o número de passos mensurados pelo SAM. Objetivo Avaliar as propriedades de medida da LSA aplicada remotamente e avaliar a correlação entre o escore da escala LSA e o número de passos mensurados pelo SAM em pacientes com hemiparesia crônica pós-AVC. Métodos Dezenove participantes responderam a LSA remotamente e, posteriormente, presencialmente. O SAM mediu os passos dados pelos participantes durante um período de três dias consecutivos. A correlação entre a LSA e o SAM foi realizada por meio da correlação de Pearson. As propriedades de medida calculadas da LSA aplicada remotamente foram o coeficiente de correlação intraclasse (ICC), alfa de Cronbrach, erro do padrão de medida (SEM) e menor diferença real (SRD). Resultados A reprodutibilidade da escala LSA entre as aplicações remotas e presenciais foi considerada excelente com ICC = 0,85 (IC 95% 0,62-0,94); SEM = 8,4; SRD = 23,2 e alfa de Cronbrach = 0,85. A correlação entre SAM e a LSA foi positiva, considerada moderada (r = 0,51) e significativa (p= 0,025). Conclusão A LSA é uma medida reprodutível para pacientes hemiparéticos crônicos pós-AVC mesmo se aplicada remotamente e pode ser usada como uma medida remota de mobilidade em ambiente real para pessoas com hemiparesia crônica após AVC.

Prescription of off-label and unlicensed medication for newborns hospitalized in the Intensive Care Unit / Prescrição de medicamentos off-label e não licenciados para neonatos hospitalizados na Unidade de Terapia Intensiva

ABSTRACT Objective: To analyze the prevalence of off-label and unlicensed prescriptions for a population of neonates admitted to the Neonatal Intensive Care Unit in a hospital in southern Santa Catarina. Methods: Observational study with a cross-sectional design. All neonates admitted to the Intensive Care Unit during the period from March 2020 to March 2021 were included. Data collection was performed through a questionnaire made by the authors and the classification of drugs based on the Electronic Drug Description (Bulário Eletrônico) of the Brazilian Health Regulatory Agency and Drug Dex-Micromedex. Results: Data from 296 neonates were evaluated. The prevalence was 50,7% for prescribing off-label medications and 37,2% for unlicensed medications. The use of drugs was higher in preterm neonates, with low birth weight, 1st minute Apgar between 6-8, 5th minute Apgar between 7-8, and in need of invasive procedures. The most used off-label drugs were ampicillin, gentamicin and fentanyl (92.6, 92.0 and 26.6%, respectively), whereas the most used unlicensed drugs were caffeine, phenobarbital and bromopride (78.1, 16.3 and 10.9%, respectively). Conclusions: This study showed a large percentage of prescriptions made in the off-label (50.7%) and unlicensed (37.2%) form in the Neonatal Intensive Care Unit, corroborating the worrying world scenario. The most exposed neonates were precisely the most vulnerable ones and, among the most commonly prescribed medications, ampicillin and gentamicin stood out in off-label form and caffeine in unlicensed form.

RESUMO Objetivo: Analisar a prevalência de prescrições off-label e não licenciadas uma população de neonatos internados na Unidade de Terapia Intensiva Neonatal em um hospital ao sul de Santa Catarina. Métodos: Estudo observacional com delineamento transversal. Foram incluídos todos os neonatos admitidos na Unidade de Terapia Intensiva durante o período de março de 2020 a março de 2021. A coleta de dados foi realizada a partir de questionário elaborado pelos autores, e a classificação dos medicamentos, com base no Bulário Eletrônico da Agência Nacional de Vigilância Sanitária e no Drug Dex-Micromedex. Resultados: Foram avaliados dados de 296 neonatos. A prevalência foi de 50,7% para prescrição de medicações off-label e 37,2% para medicações não licenciadas. O uso dos fármacos foi maior em neonatos pré-termo, com baixo peso ao nascer, Apgar de 1o minuto entre 6-8, Apgar de 5o minuto entre 7-8, e com necessidade de procedimentos invasivos. Os fármacos off-label mais utilizados foram a ampicilina, gentamicina e fentanil (92,6, 92 e 26,6%, respectivamente), já os fármacos não licenciados mais utilizados foram a cafeína, fenobarbital e bromoprida (78,1, 16,3 e 10,9%, respectivamente). Conclusões: O estudo demonstrou grande porcentagem de prescrições realizadas de forma off-label (50,7%) e não licenciada (37,2%) na Unidade de Terapia Intensiva Neonatal de análise, corroborando o preocupante cenário mundial. Os neonatos mais expostos foram justamente aqueles mais vulneráveis e, entre as medicações mais utilizadas, destacam-se a ampicilina e a gentamicina de modo off-label e a cafeína de modo não licenciado.

Outcomes of Chylothorax Nonoperative Management After Cardiothoracic Surgery: A Systematic Review and Meta-Analysis.

INTRODUCTION: Chylothorax after thoracic surgery is a severe complication with high morbidity and mortality rate of 0.10 (95% confidence interval [CI] 0.06 - 0.02). There is no agreement on whether nonoperative treatment or early reoperation should be the initial intervention. This systematic review and meta-analysis aimed to evaluate the outcomes of the conservative approach to treat chyle leakage after cardiothoracic surgeries. METHODS: A systematic review was conducted in PubMed®, Embase, Cochrane Library Central, and LILACS (Biblioteca Virtual em Saúde) databases; a manual search of references was also done. The inclusion criteria were patients who underwent cardiothoracic surgery, patients who received any nonoperative treatment (e.g., total parenteral nutrition, low-fat diet, medium chain triglycerides), and studies that evaluated chylothorax resolution, length of hospital stay, postoperative complications, infection, morbidity, and mortality. CENTRAL MESSAGE: Nonoperative treatment for chylothorax after cardiothoracic procedures has significant hospital stay, morbidity, mortality, and reoperation rates. RESULTS: Twenty-two articles were selected. Pulmonary complications, infections, and arrhythmia were the most common complications after surgical procedures. The incidence of chylothorax in cardiothoracic surgery was 1.8% (95% CI 1.7 - 2%). The mean time of maintenance of the chest tube was 16.08 days (95% CI 12.54 - 19.63), and the length of hospital stay was 23.74 days (95% CI 16.08 - 31.42) in patients with chylothorax receiving nonoperative treatment. Among patients that received conservative treatment, the morbidity event was 0.40 (95% CI 0.23 - 0.59), and reoperation rate was 0.37 (95% CI 0.27 - 0.49). Mortality rate was 0.10 (95% CI 0.06 - 0.02). CONCLUSION: Nonoperative treatment for chylothorax after cardiothoracic procedures has significant hospital stay, morbidity, mortality, and reoperation rates.

Diffusion tensor imaging of the physis: the ABC's.

The physis, or growth plate, is the primary structure responsible for longitudinal growth of the long bones. Diffusion tensor imaging (DTI) is a technique that depicts the anisotropic motion of water molecules, or diffusion. When diffusion is limited by cellular membranes, information on tissue microstructure can be acquired. Tractography, the visual display of the direction and magnitude of water diffusion, provides qualitative visualization of complex cellular architecture as well as quantitative diffusion metrics that appear to indirectly reflect physeal activity. In the growing bones, DTI depicts the columns of cartilage and new bone in the physeal-metaphyseal complex. In this "How I do It", we will highlight the value of DTI as a clinical tool by presenting DTI tractography of the physeal-metaphyseal complex of children and adolescents during normal growth, illustrating variation in qualitative and quantitative tractography metrics with age and skeletal location. In addition, we will present tractography from patients with physeal dysfunction caused by growth hormone deficiency and physeal injury due to trauma, chemotherapy, and radiation therapy. Furthermore, we will delineate our process, or "DTI pipeline," from image acquisition to data interpretation.

Resolution of Large Cervico-Thoracic Syringomyelia Following Treatment of Thyrotoxicosis: A Case Report.

Treatment for a large symptomatic syrinx associated with a Chiari 1 is predominately surgical, via a foramen magnum decompression (FMD), with the aim to normalise cerebrospinal fluid (CSF) movement. Whilst theories of underlying hyperdynamic states in Chiari 1 and Syringomyelia exist, to date there is no effective medical treatment to reverse Syringomyelia. A 17-year-old female was referred with a seven-month history of gradually progressive impaired temperature sensation in her left upper limb. She had also been concomitantly diagnosed with thyrotoxicosis. Magnetic resonance imaging (MRI) confirmed a Chiari 1 with a large syrinx. The patient preferred to avoid surgery in the first instance. She underwent treatment for her thyrotoxicosis. The eight-month, 20- and 36-month follow-up MRI scans demonstrated a gradual resolution of the Chiari 1 malformation and the syrinx. Whilst there have been reports of Chiari 1 malformation association with hyperthyroidism, this is the first report describing syrinx resolution following treatment of thyrotoxicosis. Hyperdynamic circulation can result in syrinx formation through various mechanisms. We hypothesise that the treatment of thyrotoxicosis resulted in normalisation of CSF pulse amplitude and subsequent syrinx resolution. Hyperthyroidism evaluation may be explored in studies of CM1 and Syrinx or other CSF disorders.

Fibrous hamartoma of infancy: imaging findings.

BACKGROUND: Fibrous hamartoma of infancy is a benign tumor that typically arises within the first 2 years of life in the subcutaneous and lower dermal layers. Diagnosis can be challenging as it is a rare tumor, and the imaging appearance is not well known. OBJECTIVE: To describe the imaging features in 4 cases of fibrous hamartoma of infancy focusing on ultrasound (US) and magnetic resonance (MR) findings. MATERIALS AND METHODS: In this retrospective IRB-approved study, informed consent was waived. We searched patient charts for histopathology-confirmed fibrous hamartoma of infancy diagnosis between November 2013 and November 2022. We found four cases, three boys and one girl, and the mean age was 1.4 years (5 months-3 years). The lesions were located in the axilla, posterior elbow, posterior neck, and lower back. All four patients underwent ultrasound evaluation of the lesion, and two patients also underwent MRI evaluation. The imaging findings were reviewed by consensus by two pediatric radiologists. RESULTS: US imaging revealed subcutaneous lesions with variably defined hyperechoic regions and intervening hypoechoic bands resulting in a linear "serpentine" pattern or a "multiple semicircle" pattern. MR imaging evidenced heterogeneous soft tissue masses, localized in the subcutaneous fat, and showed hyperintense fat interspersed with hypointense septations on both T1- and T2-weighted images. CONCLUSION: Fibrous hamartoma of infancy has a suggestive appearance on US with heterogeneous, echogenic subcutaneous lesions with intervening hypoechoic portions, in parallel or circumferential arrangement that can be seen as a serpentine or semicircular pattern. On MRI, interspersed macroscopic fatty components show high signal intensity on T1- and T2-weighted images and reduced signal on fat-suppressed inversion recovery images, with irregular peripheral enhancement.

Masquerade syndrome in ocular surface squamous neoplasia / Síndrome mascarada em neoplasia escamosa da superfície ocular

ABSTRACT The aim of this study was to alert the ophthalmic community to an atypical manifestation of ocular surface squamous neoplasia, which may delay diagnosis and treatment and result in a guarded visual prognosis and significant sequelae. A 61-year-old immunocompetent man presented with an initial diagnosis of necrotizing scleritis in the right eye for 3 months. He was treated with systemic prednisone but experienced persistent pain and low visual acuity. Conjunctival biopsy of the affected region confirmed the diagnosis of invasive ocular surface squamous neoplasia, which progressed with intraocular and orbital invasion; thus, exenteration was performed. Masquerade syndrome should be suspected in patients with nodulo-ulcerative lesions of the conjunctiva and sclera. This clinical can be more aggressive, with a greater likelihood of intraocular and orbital involvement. The earlier the diagnosis and treatment, the better the patient prognosis.

RESUMO O objetivo é alertar a comunidade oftalmológica sobre uma manifestação atípica de neoplasia escamosa da superfície ocular (OSSN) que pode levar a um atraso no diagnóstico e tratamento, evoluindo com prognóstico reservado e significativas sequelas. Homem, imunocompetente, 61 anos com diagnóstico inicial de esclerite necrosante em olho direito há 3 meses, em tratamento com prednisona sistêmica porém com persistência da dor e baixa acuidade visual. Realizado biópsia conjuntival em região acometida e diagnosticado como neoplasia escamosa da superfície ocular invasiva. Evolui com invasão intraocular e orbital sendo submetido a exenteração. Assim sendo, deve-se suspeitar de síndrome mascarada frente a um paciente com lesões nódulo-ulcerativas da conjuntiva e esclera. Essa forma clínica pode ser mais agressiva, com maior chance de comprometimento intraocular e orbital. Quanto mais precoces o diagnóstico e o tratamento, melhor o prognóstico para o paciente.

Targeting oncogenic functions of miR-301a in head and neck squamous cell carcinoma by PI3K/PTEN and MEK/ERK pathways.

Treatment of head and neck squamous cell carcinomas (HNSCC), the sixth most frequent cancer worldwide, remains challenging. miRNA dysregulation is closely linked to tumorigenesis and tumor progression, thus emerging as suitable targets for cancer treatment. Transcriptomic analysis of TCGA HNSCC dataset revealed that miR-301a expression levels significantly increased in primary tumors, as compared to patient-matched normal tissue. This prompted us to investigate its pathobiological role and potential as new therapeutic target using different preclinical HNSCC models. miR-301a overexpression in HNSCC-derived cell lines led to enhanced proliferation and invasion, whereas miR-301 inhibition reduced these effects. In vivo validation was performed using an orthotopic mouse model. Results concordantly showed that the mitotic counts, the percentage of infiltration depth and Ki67 proliferative index were significantly augmented in the subgroup of mice harboring miR-301a-overexpressing tumors. Further mechanistic characterization revealed PI3K/PTEN/AKT and MEK/ERK pathways as central signaling nodes responsible for mediating the oncogenic activity of miR-301a observed in HNSCC cells. Notably, pharmacological disruption of PI3K and ERK signals with BYL-719 and PD98059, respectively, was effective to completely revert/abolish miR-301a-promoted tumor cell growth and invasion. Altogether, these findings demonstrate that miR-301a dysregulation plays an oncogenic role in HNSCC, thus emerging as a candidate therapeutic target for this disease. Importantly, available PI3K and ERK inhibitors emerge as promising anti-tumor agents to effectively target miR-301a-mediated signal circuit hampering growth-promoting and pro-invasive functions.

Manejo das enfermeiras sobre abordagem sindrômica na atenção primária à saúde / Nurses' management of the syndromic approach in primary health care / Gestión del enfoque sindrómico en atención primaria por parte de las enfermeras

Introdução: As Infecções Sexualmente Transmissíveis configuram um problema de saúde pública grave, tendo a consulta de enfermagem baseada na abordagem sindrômica como mecanismo de mitigação. Objetivos: analisar o manejo das enfermeiras sobre abordagem sindrômica na atenção primária à saúde, apreender os conhecimentos das enfermeiras sobre abordagem sindrômica na atenção primária à saúde, caracterizar as estratégias de manejo das enfermeiras sobre abordagem sindrômica na atenção primária à saúde e conhecer os fluxos de atendimento da rede assistencial em saúde na abordagem sindrômica. Metodologia: Estudo qualitativo, exploratório e descritivo, realizado com oito enfermeiras das Unidades de Saúde da Família de um município no interior da Bahia- Brasil. A coleta de dados foi realizada através da entrevista semiestruturada, presencial ou remota via Google Meet e a análise utilizada foi a técnica de conteúdo temática proposta por Bardin. Principais Resultados: O conhecimento das enfermeiras mostrou-se incipiente sobre o tema, porém, as profissionais que tiveram curso sobre o tema demonstraram construção teórica na abordagem sindrômica. Identificou-se que as estratégias de manejo estão baseadas em práticas assistenciais e educacionais da enfermagem e encaminhamento médico. Por fim, notou-se a utilização da referência para serviços especializados em algumas patologias específica, contudo, há falha na contrarreferência. Conclusão: Diante disso, aponta-se a necessidade de educação permanente, bem como é essencial a padronização dos fluxos e melhoria do sistema de contrarreferência dos serviços da abordagem sindrômica na Atenção Primária à Saúde.

Introduction: Sexually Transmitted Infections constitute a serious public health problem, with the nursing consultation based on the syndromic approach as a mitigation mechanism. Objectives: to analyze nurses management of the syndromic approach in primary health care, learn nurses knowledge of the syndromic approach in primary health care, characterize nurses management strategies regarding the syndromic approach in primary health care, and learn about the service flows of the health care network in the syndromic approach. Methodology: Qualitative, exploratory and descriptive study, carried out with eight nurses from the Family Health Units of a municipality in the interior of Bahia-Brazil. Data collection was carried out through semi- structured, face-to-face or remote interviews via Google Meet and the analysis used was the thematic content technique proposed by Bardin. Main Results: The nurses' knowledge was incipient on the subject, however, the professionals who had taken a course on the subject demonstrated theoretical construction in the syndromic approach. It was identified that the management strategies are based on care and educational nursing practices and medical referral. Finally, the use of referrals to services specialized in some specific pathologies was noted, however, there is a failure in the counter-referral. Conclusion: In view of this, the need for permanent education is pointed out, as well as the standardization of flows and improvement of the counter-referral system of services of the syndromic approach in Primary Health Care.

Introducción: Las Infecciones Sexualmente Transmisibles constituyen un grave problema de salud pública, teniendo la consulta de enfermería basada en el abordaje sindrómico como mecanismo de mitigación. Objetivos: analizar el manejo de las enfermeras sobre el abordaje sindrómico en la atención primaria en salud, aprehender los conocimientos de las enfermeras sobre el abordaje sindrómico en la atención primaria en salud, caracterizar las estrategias de manejo de las enfermeras sobre el abordaje sindrómico en la atención primaria en salud y conocer los flujos de atención de la red asistencial en salud sobre el abordaje sindrómico. Metodologia: Estudo qualitativo, exploratório e descritivo, realizado com oito enfermeiras das Unidades de Saúde da Família de um município no interior da Bahia-Brasil. La recogida de datos se realizó mediante entrevista semiestructurada, presencial o a distancia a través de Google Meet y el análisis utilizado fue la técnica de contenido temático propuesta por Bardin. Resultados principales: El conocimiento de las enfermeras sobre el tema parece incipiente, aunque los profesionales que han recibido formación sobre el tema han demostrado una construcción teórica en el abordaje sindrómico. Se identificó que las estrategias de manejo se basan en prácticas asistenciales y educativas de enfermería y encaminamiento médico. Por último, se observó que el uso de la referencia para servicios especializados en algunas patologías específicas, sin embargo, ha fallado en la contrarreferencia. Conclusão: Diante isso, aponta-se a necessidade de educação permanente, bem como é essencial a padronização dos fluxos e melhoria do sistema de contrarreferência dos serviços da abordagem sindrômica na Atenção Primária à Saúde.

Masquerade syndrome in ocular surface squamous neoplasia.

The aim of this study was to alert the ophthalmic community to an atypical manifestation of ocular surface squamous neoplasia, which may delay diagnosis and treatment and result in a guarded visual prognosis and significant sequelae. A 61-year-old immunocompetent man presented with an initial diagnosis of necrotizing scleritis in the right eye for 3 months. He was treated with systemic prednisone but experienced persistent pain and low visual acuity. Conjunctival biopsy of the affected region confirmed the diagnosis of invasive ocular surface squamous neoplasia, which progressed with intraocular and orbital invasion; thus, exenteration was performed. Masquerade syndrome should be suspected in patients with nodulo-ulcerative lesions of the conjunctiva and sclera. This clinical can be more aggressive, with a greater likelihood of intraocular and orbital involvement. The earlier the diagnosis and treatment, the better the patient prognosis.

Applicability of autofluorescence and fluorescent probes in the trans-surgical of oral carcinomas: A systematic review.

Oral cancer represents an important health problem, as it is the sixth most common type of cancer in the world and is associated with high rates of morbidity and mortality. The treatment considered the gold standard for this type of tumor is surgical resection with negative margins, with a distance of at least 5 mm from the tumor. This procedure is strongly associated with local control and disease-specific survival, however, in many cases, large amounts of healthy tissue are removed, resulting in surgical defects, compromising various functions and directly affecting the individual's quality of life. From this perspective, this systematic review aimed to evaluate the use of autofluorescence and fluorescent probes as potential adjuvant techniques to facilitate the delineation of surgical margins for oral cancers. A comprehensive search was performed in Pubmed, Scopus, Web of Science, LIVIVO, Embase, ProQuest Open Access Dissertations & Theses, Open Access Theses and Dissertations, and DART Europe databases, where 1948 articles were found. After the different stages of critical evaluation, 15 articles were selected, eligible for the inclusion criteria. Of these, 7 articles used autofluorescence, 7 used fluorescent probes and 1 article used both methods. As for autofluorescence, the most used device was the VELScope, and indocyanine green was the most used probe. Compared to histopathology, autofluorescence did not obtain significant and/or superiors results. In contrast to fluorescent probes that, most articles showed a good performance of margins during surgical resection, making them a promising alternative. However, it is still necessary to carry out the analysis of more articles, with more significant samples and sensitivity and specificity data to qualify the results.

Sleep and circadian hygiene practices association with sleep quality among Brazilian adults.

Objective: To investigate the association of sleep and circadian hygiene practices (sleep-promoting and sleep-disturbing behaviors) with sleep quality indicators. Methods: Participants (n = 2050; 18-65 y) were part of virtual population-based research. Logistic regression models were fitted to assess differences in the OR (95% CI) of poor quality with sleep-promoting/disturbing practices (time-of-day of exercise, pre-bedtime routine, naps, electronic devices with illuminated screens, caffeine and alcohol consumption, and smoking). Linear regression analyses evaluated differences in sleep duration, latency, and awakenings associated with the same variables. Restricted cubic splines were used to study the shape of the association of screen time before bed with sleep duration, latency, and awakenings. Analyses were adjusted for age, sex, region, marital status, educational level, evening diet quality, and BMI. Results: Evening use of electronic devices with illuminated screens showed a negative effect on all sleep parameters. Reporting dinner as the largest meal and evening caffeine consumption was associated with shorter sleep duration and longer sleep latency. Smokers had higher odds of longer latency. A protective effect of morning exercises was demonstrated on sleep quality, latency, and awakenings. Alcohol consumers presented lower odds of poor quality and lower frequency of awakenings. Pre-bedtime practices showed no or negative effect on sleep outcomes. Conclusions: Recommendations to promote sleep quality and prevent sleep-related problems, with corresponding circadian health benefits, should include engaging in regular exercise, preferably in the morning, and avoiding naps, heavy meals close to bedtime, caffeine, smoking, and evening screen exposure.

Outcomes of Chylothorax Nonoperative Management After Cardiothoracic Surgery: A Systematic Review and Meta-Analysis

ABSTRACT Introduction: Chylothorax after thoracic surgery is a severe complication with high morbidity and mortality rate of 0.10 (95% confidence interval [CI] 0.06 - 0.02). There is no agreement on whether nonoperative treatment or early reoperation should be the initial intervention. This systematic review and meta-analysis aimed to evaluate the outcomes of the conservative approach to treat chyle leakage after cardiothoracic surgeries. Methods: A systematic review was conducted in PubMed®, Embase, Cochrane Library Central, and LILACS (Biblioteca Virtual em Saúde) databases; a manual search of references was also done. The inclusion criteria were patients who underwent cardiothoracic surgery, patients who received any nonoperative treatment (e.g., total parenteral nutrition, low-fat diet, medium chain triglycerides), and studies that evaluated chylothorax resolution, length of hospital stay, postoperative complications, infection, morbidity, and mortality. Central Message Nonoperative treatment for chylothorax after cardiothoracic procedures has significant hospital stay, morbidity, mortality, and reoperation rates. Results: Twenty-two articles were selected. Pulmonary complications, infections, and arrhythmia were the most common complications after surgical procedures. The incidence of chylothorax in cardiothoracic surgery was 1.8% (95% CI 1.7 - 2%). The mean time of maintenance of the chest tube was 16.08 days (95% CI 12.54 - 19.63), and the length of hospital stay was 23.74 days (95% CI 16.08 - 31.42) in patients with chylothorax receiving nonoperative treatment. Among patients that received conservative treatment, the morbidity event was 0.40 (95% CI 0.23 - 0.59), and reoperation rate was 0.37 (95% CI 0.27 - 0.49). Mortality rate was 0.10 (95% CI 0.06 - 0.02). Conclusion: Nonoperative treatment for chylothorax after cardiothoracic procedures has significant hospital stay, morbidity, mortality, and reoperation rates.