The link between alterations in circadian rhythms and lipid metabolism in bipolar disorder: the lipid droplets hypothesis.

Bipolar disorder (BD) is a neuropsychiatric illness characterized by recurrent episodes of mania and depression, leading to profound cognitive and functional impairments, psychiatric and metabolic comorbidities, and substantial healthcare costs. Due to its complex nature and absence of specific biomarkers, BD presents significant daily challenges for clinicians. Therefore, advancing our understanding of BD pathophysiology is essential to identify novel diagnostic biomarkers and potential therapeutic targets. Although its neurobiology remains unclear, disruption of circadian rhythms and lipid alterations have emerged as key hallmarks of BD. As essential components of the brain, lipids play a pivotal role in regulating synaptic activity and neuronal development. Thus, alterations in brain lipids may contribute to the neuroanatomical changes and reduced neuroplasticity observed in BD. The levels of toxic lipids inside the cell are buffered by lipid droplets that regulate the storage of neutral lipids. These dynamic organelles adapt to cellular needs, and their dysregulated accumulation has been linked to various pathological conditions. Notably, lipid droplets and various lipid classes display rhythmic oscillations throughout the 24-hour cycle, suggesting a link between lipid metabolism, circadian rhythms and lipid droplets. In this review, we explore the impairment of circadian rhythms and lipid metabolism in BD, along with evidence demonstrating that circadian clocks regulate the accumulation of lipid droplets. Importantly, we propose the "lipid droplets hypothesis for BD" that considers that the compromised lipid metabolism in BD is intimately associated with alterations in the lipid droplets homeostasis, which can be driven by disturbances in the circadian clocks.

Description of BCG and Tuberculosis Disease in a Cohort of 79 Patients with Chronic Granulomatous Disease.

PURPOSE: Chronic granulomatous disease (CGD) is an inherited immunodeficiency caused by pathogenic variants of genes encoding the enzyme complex NADPH oxidase. In countries where tuberculosis (TB) is endemic and the Bacillus Calmette-Guérin (BCG) vaccine is routinely administered, mycobacteria are major disease-causing pathogens in CGD. However, information on the clinical evolution and treatment of mycobacterial diseases in patients with CGD is limited. The present study describes the adverse reactions to BCG and TB in Mexican patients with CGD. METHODS: Patients with CGD who were evaluated at the Immunodeficiency Laboratory of the National Institute of Pediatrics between 2013 and 2024 were included. Medical records were reviewed to determine the clinical course and treatment of adverse reactions to BCG and TB disease. RESULTS: A total of 79 patients with CGD were included in this study. Adverse reactions to BCG were reported in 55 (72%) of 76 patients who received the vaccine. Tuberculosis was diagnosed in 19 (24%) patients. Relapse was documented in three (10%) of 31 patients with BGC-osis and six (32%) of 19 patients with TB, despite antituberculosis treatment. There was no difference in the frequency of BCG and TB disease between patients with pathogenic variants of the X-linked CYBB gene versus recessive variants. CONCLUSIONS: This report highlights the importance of considering TB in endemic areas and BCG complications in children with CGD to enable appropriate diagnostic and therapeutic approaches to improve prognosis and reduce the risk of relapse.

A snapshot of a representative Brazilian state of illegal mining in indigenous areas during the era of malaria elimination.

Malaria is a public health problem and the cases diagnosed in the capital of Roraima, Brazil, show potential to characterize the burden of the disease in the state. This study aimed to describe the epidemiological, clinical, and laboratory aspects of malaria cases diagnosed in Boa Vista. For this purpose, a descriptive, cross-sectional study was conducted in two health units in the city, with individuals diagnosed and who agreed to respond the questionnaire. Of the total of 206 participants, characterized as men, mixed-race, and young, 96% (198) reported participating in illegal mining activity. Among the group of miners, 66% (131) came from other states of Brazil or other countries. The mines were mainly located in the Yanomami territory in Roraima. Plasmodium vivax infection occurred in 74% (153) of participants. In the miner's group, hospitalizations for severe malaria, previous malaria attacks, and delays in treatment after the onset of symptoms were reported. Although 73% (145) of miners reported knowing how malaria was transmitted, only 54% (107) used mosquito nets or repellents. The use of Artecom and chloroquine by miners is not for the complete treatment but only to relieve symptoms for returning to gold mines, highlighting the importance of molecular surveillance to antimalarial resistance. Indigenous peoples are considered vulnerable to malaria and miners promotes the increase of malaria in Roraima Indigenous Lands. Therefore, access to diagnosis and treatment in Indigenous areas invaded by miners is imperative to confront this disease that ravages Indigenous communities and threatens public health on a large scale to achieve the goal of eliminating malaria in the state.

Molecular Surveillance of Artemisinin-Resistant Plasmodium falciparum Parasites in Mining Areas of the Roraima Indigenous Territory in Brazil.

Multidrug- and artemisinin-resistant (ART-R) Plasmodium falciparum (Pf) parasites represent a challenge for malaria elimination worldwide. Molecular monitoring in the Kelch domain region (pfk13) gene allows tracking mutations in parasite resistance to artemisinin. The increase in illegal miners in the Roraima Yanomami indigenous land (YIL) could favor ART-R parasites. Thus, this study aimed to investigate ART-R in patients from illegal gold mining areas in the YIL of Roraima, Brazil. A questionnaire was conducted, and blood was collected from 48 patients diagnosed with P. falciparum or mixed malaria (Pf + P. vivax). The DNA was extracted and the pfk13 gene was amplified by PCR. The amplicons were subjected to DNA-Sanger-sequencing and the entire amplified fragment was analyzed. Among the patients, 96% (46) were from illegal mining areas of the YIL. All parasite samples carried the wild-type genotypes/ART-sensitive phenotypes. These data reinforce the continued use of artemisinin-based combination therapies (ACTs) in Roraima, as well as the maintenance of systematic monitoring for early detection of parasite populations resistant to ART, mainly in regions with an intense flow of individuals from mining areas, such as the YIL. This is especially true when the achievement of falciparum malaria elimination in Brazil is planned and expected by 2030.

Clinical, Radiographic, and Histological Changes in Enamel and Dentin, According to Caries Care International™ Evaluation, In Permanent Posterior Teeth: An Observational Study / Cambios Clínicos, Radiográficos e Histológicos en Esmalte y Dentina, Según Evaluación de Caries Care International™, en Dientes Posteriores Permanentes: Un Estudio Observacional

SUMMARY: CariesCare International ™ practical guide is a tool for the comprehensive assessment and treatment of caries that synthesizes clinical and radiographic diagnosis and risk factors, classifying the severity, progression, and activity of lesions. The objective of this study was to analyze the validity and prediction characteristics of the proposed dental caries classification in the CariesCare International ™ practical guide as a reference through clinical and radiographic evaluation versus histological evaluation. Ninety-seven permanent posterior teeth were evaluated, and clinical and radiographic diagnoses were determined according to parameters defined in the CariesCare International™ guide as a reference. Subsequently, histological evaluation was performed to compare each stage of dental caries progression, and statistical analysis was applied. When comparing the validity and prediction values between radiographic and clinical diagnoses in relation to histological evaluation, a low sensitivity and high specificity relationship was found. The sensitivity and specificity percentages between the clinical and radiographic methods show that the clinical method has a lower number of false negatives. Histological changes in dental tissue were evident from the earliest stages of lesions, even in those not related to the caries process, indicating that the dentist should be careful when deciding on a treatment plan and take into account all variables involved in the caries process, as proposed by the CariesCare International ™ guide.

La guía práctica CariesCare International™ es una herramienta para la evaluación y tratamiento integral de la caries que sintetiza el diagnóstico clínico y radiográfico y los factores de riesgo, clasificando la gravedad, progresión y actividad de las lesiones. El objetivo de este estudio fue analizar la validez y características de predicción de la clasificación de caries dental propuesta en la guía práctica CariesCare International™ como referencia a través de la evaluación clínica y radiográfica versus la evaluación histológica. Se evaluaron noventa y siete dientes posteriores permanentes y se determinaron diagnósticos clínicos y radiográficos según parámetros definidos en la guía CariesCare International™ como referencia. Posteriormente se realizó una evaluación histológica para comparar cada etapa de progresión de la caries dental y se aplicó análisis estadístico. Al comparar los valores de validez y predicción entre los diagnósticos radiológicos y clínicos en relación con la evaluación histológica, se encontró una relación de baja sensibilidad y alta especificidad. Los porcentajes de sensibilidad y especificidad entre el método clínico y radiográfico muestran que el método clínico tiene un menor número de falsos negativos. Los cambios histológicos en el tejido dental fueron evidentes desde las primeras etapas de las lesiones, incluso en aquellas no relacionadas con el proceso de caries, lo que indica que el odontólogo debe tener cuidado al decidir un plan de tratamiento y tener en cuenta todas las variables involucradas en el proceso de caries, tal como propone la guía CariesCare International™.

Relapsing Plasmodium vivax malaria in a 12-year-old Brazilian girl: A case report.

Plasmodium vivax causes the vast majority of malaria cases in Brazil. The lifecycle of this parasite includes a latent stage in the liver, the hypnozoite. Reactivation of hypnozoites induces repeated relapses. We report a case of two relapses of vivax malaria in a teenage girl after conventional treatment with chloroquine and primaquine. Chloroquine prophylactic treatment for three months was prescribed with a favourable outcome of the case.

Implementation of the My Abilities First Tool: A qualitative study on the perceptions of professionals, caregivers, children, and adolescents with disabilities.

OBJECTIVE: To analyze the perceptions of professionals, caregivers, children, and adolescents with disabilities regarding the implementation of the My Abilities First (MAF) tool in Specialized Child Rehabilitation Centers (CERs). METHOD: This is a qualitative research based on Reflexive Thematic Analysis (RTA). The study involved twenty-seven intentionally selected individuals, comprising 12 physiotherapists, 4 occupational therapists, 11 caregivers, 9 children and 2 adolescents. Participants completed sociodemographic and clinical questionnaires and took part in semi-structured online interviews, focusing on two themes: Positive health approaches and the MAF tool. The study was approved by the local ethics committee (opinion 4.779.175). RESULTS: Reflexive Thematic Analysis of the interviews resulted in two themes: (1) Perceptions regarding the MAF tool as an educational and contributory process to enhance the inclusion and participation of children and adolescents with disabilities, and (2) Barriers and facilitators for the implementation process of the MAF tool. The implementation of MAF was identified as a driving factor in promoting equity and increased participation of children and adolescents with disabilities in various settings, including health, education, and leisure. Interviewees highlighted the need to confront attitudinal, communication, and social barriers that may hinder the implementation of the tool. CONCLUSION: The implementation of the MAF tool was perceived as an innovation due to its focus on the abilities of individuals with disabilities. However, there is a need to restructure it to broaden its scope and access to different contexts in order to confront barriers and enhance the inclusion and participation of children and adolescents with disabilities.

Factors associated with frailty among older individuals with chronic diseases: A multicenter study.

Objective: Frailty is a syndrome that predisposes older individuals to adverse health outcomes, such as disability, dependence, falls, hospitalization, post-operative complications, and poor health in general. This study aimed to identify factors associated with frailty in older people with chronic diseases in Colombia. Methods: A cross-sectional study was conducted with a nonprobabilistic sample of 230 older people (aged ⩾ 60 years) from four Colombian cities. Frailty was based on Fried's phenotype (frail defined as having ⩾3 criteria). Comorbidities were classified based on Charlson's Comorbidity Index and key questionnaires for activities of daily living (ADLs) were evaluated. Results: Most were female (57.8%) with a mean ± SD age of 71.9 ± 8 years. Among them, 27.4% were frail and 58.7% were prefrail. Female gender, age ⩾ 75 years, low educational and socioeconomic level, dependence on ADLs, and cognitive impairment were associated with higher odds of prefrailty/frailty. Conclusions: Prefrailty and frailty are common among older people with chronic diseases in Colombia. This syndrome is associated with social and health-related conditions, which should be addressed when providing care for these patients.

Feline Leishmaniasis: Evidence-based Treatments and Challenges to be Solved.

Leishmaniasis is a neglected tropical disease caused by protozoa parasites from the Leishmania genus. Vertebrate hosts acquire the infection through the bite of a female sandfly, initiating a complex parasite development cycle. Contrary to previous beliefs regarding cats' resistance, these animals have recently been identified as potential reservoirs for leishmaniasis. Clinical symptoms in cats can manifest in diverse forms, including cutaneous, mucocutaneous, and visceral manifestations. The diagnosis of feline leishmaniasis is complicated by nonspecific symptoms and the relatively lower specificity of serological tests. The recommended treatment for feline leishmaniasis involves the administration of medications; however, success varies in each cat. This review aims to present cases of feline leishmaniasis, highlighting clinical symptoms, diagnostic methods, therapy schedules, and outcomes. Among the 24 cases documented in the available literature, 12 achieved successful treatment without relapses, resulting in a reduced parasite load and improved symptoms. Three cases responded well but presented persistent sequelae. Two feline leishmaniasis cases initially had treatment success but later experienced recurrences. Finally, no response was observed in seven cases, leading to the euthanasia of cats due to ineffectiveness or irregularities along the therapy. Conventional treatments, despite potential hepatotoxicity and nephrotoxicity, exhibit a high efficacy in reducing parasitic load, thereby improving clinical symptoms and increasing the life expectancy of affected cats. Nevertheless, consistent adherence is crucial, as interruptions may render the therapy ineffective and contribute to parasite resistance. Therefore, addressing the challenges associated with feline leishmaniasis treatment necessitates the development of new strategies to ensure a more effective and sustained approach.

The dispersant Corexit 9500 and (dispersed) oil are lethal to coral endosymbionts.

Endosymbionts (Symbiodiniaceae) play a vital role in the health of corals. Seawater pollution can harm these endosymbionts and dispersants used during oil spill cleanup can be extremely toxic to these organisms. Here, we examined the impact of oil and a specific dispersant, Corexit-9500, on two representative endosymbionts - Symbiodinium and Cladocopium - from the Southwestern endemic coral Mussismilia braziliensis. The survival and photosynthetic potential of the endosymbionts decreased dramatically after exposure to the dispersant and oil by ~25 % after 2 h and ~50 % after 7 days. Low concentrations of dispersant (0.005 ml/l) and dispersed oil (Polycyclic Aromatic Hydrocarbons, 1132 µg/l; Total Petroleum Hydrocarbons, 595 µg/l) proved highly toxic to both Symbiodinium and Cladocopium. These levels triggered a reduction in growth rate, cell size, and cell wall thickness. After a few hours of exposure, cellular organelles were damaged or destroyed. These acute toxic effects underline the fragile nature of coral endosymbionts.

Teaching Population Panel Management: A Patient Outreach Activity in a Family Medicine Clerkship.

BACKGROUND AND OBJECTIVES: The delivery of population health education in medical school can be challenging. We developed a patient outreach activity for third-year students to teach them the role of population panel management in primary care. METHODS: The family medicine undergraduate medical education and population health teams collaborated to develop an educational patient outreach toolkit. After an orientation, family medicine clerkship students were assigned to call patients on their faculty adviser's patient panel to discuss care gaps and identify barriers and potential strategies to improve care. After the experience, students completed reflection questions, which we analyzed. RESULTS: From February to August 2022, 82 third-year medical students participated in the patient outreach activity during their 6-week clerkship. Of the 1,235 total attempted calls, 24% of the patients scheduled their appointments afterward. After analyzing the reflective student feedback, we identified six main takeaways, which focused on the importance of population health, the identification of barriers to care, positive and negative feelings that students experienced when making calls, student self-identified areas of growth, and the fragmentation/inefficiency of the health care system. CONCLUSIONS: An opportunity exists to continue to teach students about how to communicate with patients about their health and how to address and improve social determinants of health. This curricular activity can be a step toward efforts to align population health and clinical practice and a way for medical students to add value by educating patients.

A compared histopathological study on kidneys and eye bulbs in distinct clinical presentations of canine leishmaniasis by Leishmania infantum.

Canine leishmaniasis (CanL) caused by Leishmania infantum commonly progresses with renal and ophthalmic lesions associated with active systemic disease. As chronic inflammation related to immune complex deposits is a pathophysiological factor in the development of both glomerulonephritis and uveitis, we aimed to evaluate renal and ocular histopathological lesions and analyze whether they were related to each other and the clinical degree of the disease. For that, we evaluated 15 dogs from CanL-endemic areas. L. infantum PCR-positive dogs were studied according to disease severity into two different groups: Group-1 (G1) had data from seven dogs with mild to moderate CanL and no history of treatment, and G2 was formed with eight dogs with severe to terminal disease that had not responded to CanL treatment. Histopathological analysis of kidneys showed higher frequencies and intensities of glomerular basement membrane thickening (p = 0.026), deposits in glomeruli (p = 0.016), epithelial necrosis (p = 0.020), tubular dilatation (p = 0.003) and interstitial fibrosis (p = 0.04) in G2 dogs than in G1 dogs. Surprisingly, the histopathology of eye bulbs showed a higher frequency and intensity of retinitis (p = 0.019) in G1 dogs than in G2 dogs. The comparative analysis showed that there was no correspondence between histopathological findings in kidneys versus eyes in milder or more severe CanL. Our findings suggested that (1) clinically undetectable eye alterations can be more precocious than those in kidneys in the development of CanL, and (2) the lower frequency of eye lesions and higher frequency of renal lesions in dogs with terminal disease even after treatment indicate that therapy may have been effective in reducing CanL-associated ophthalmic disease but not proportionally in reducing kidney disease.

Inclusion of chia seeds (Salvia hispanica L.) and pumpkin seeds (Cucurbita moschata) in dairy sheep diets.

Chia (Salvia hispanica L.) seed (CS) and Pumpkin (Cucurbita moschata) seed (PS) are used in ruminant diets as energy sources. The current experiment studied the impact of dietary inclusion of CS and PS on nutrient intake and digestibility, milk yield, and milk composition of dairy sheep. Twelve primiparous Texel × Suffolk ewes [70 ± 5 days in milk (DIM); 0.320 ± 0.029 kg milk yield] were distributed in a 4 × 3 Latin square design and fed either a butter-based control diet [CON; 13 g/kg dry matter] or two diets with 61 g/kg DM of either CS or PS. Dietary inclusion of CS and PS did not alter live weight (p >0.1) and DM intake (p >0.1). However, compared to the CON, dietary inclusion of both CS and PS increased the digestibility of neutral detergent fiber (p <0.001) and acid detergent lignin (p < 0.001). Milk production (p = 0.001), fat-corrected milk (p < 0.001), and feed efficiency (p < 0.001) were enhanced with PS, while the highest milk protein yield (p < 0.05) and lactose yield (p < 0.001) were for CS-fed ewes. Compared to the CON diet, the ingestion of either CS and/or PS decreased (p < 0.001) the C16:0 in milk. Moreover, both CS and PS tended to enhance the content of C18:3n6 (p > 0.05) and C18:3n3 (p > 0.05). Overall short-term feeding of CS and/or PS (up to 6.1% DM of diet) not only maintains the production performance and digestibility of nutrients but also positively modifies the milk FA composition.

A Brain Ischemia-Reperfusion Model for the Study of Tau Phosphorylation and O-GlcNAcylation.

Cerebral ischemia produces a decrease, loss, or instability of the assembly processes in the neuronal cytoskeleton, related to the alteration in the normal processes of phosphorylation of the Tau protein, triggering its hyperphosphorylation and altering the normal processes of formation of neuronal microtubules. Here we describe the methods used to study the impact of middle cerebral artery occlusion (MCAo) on neurological functions and Tau phosphorylation in Wistar rat brain.

Impact of 4% Deltamethrin-Impregnated Dog Collars on the Incidence of Human Visceral Leishmaniasis: A Community Intervention Trial in Brazil.

BACKGROUND: In Brazil, human visceral leishmaniasis (HVL) is caused by the protozoan parasite Leishmania infantum, primarily transmitted by the sand fly Lutzomyia longipalpis, with dogs acting as the main urban reservoir. This study aims to evaluate the effectiveness of 4% deltamethrin-impregnated dog collars (DMC) on HVL incidence. METHODS: This is a community intervention study carried out from 2012 to 2015 in the municipalities of Araguaína, State of Tocantins, and Montes Claros, State of Minas Gerais, Brazil. Two areas in each were randomly allocated to either (1) culling seropositive dogs + residual insecticide spraying (control area-CA) or (2) culling seropositive dogs + residual insecticide spraying + DMC fitted to dogs every six months for two years (intervention area-IA). Cases of HVL (n = 1202) occurring from 2008 to 2020 were identified from the Brazilian Reportable Diseases Information System and georeferenced to the control and intervention areas. The HVL cases from 2008 to 2012 were considered as occurring in the "pre-intervention" period. Those cases from 2013 to 2016 and from 2017 to 2020 were regarded as occurring in the "intervention" and "post-intervention" periods, respectively. We used a mixed-effects Poisson regression model to estimate the effectiveness of the intervention, comparing the changes from the pre-intervention period to the intervention and post-intervention periods in the control and intervention areas. RESULTS: In Araguaína, there was a statistically significant reduction in the incidence of HVL in both the control and intervention areas, comparing both the intervention and post-intervention periods with the pre-intervention period. The intervention with DMC was significantly associated with a reduction in HVL when comparing the intervention and pre-intervention periods, yielding an effectiveness estimate of the DMC of 27% (IC95% 1-46%, p = 0.045). No differences were observed when comparing the pre- and post-intervention periods (p = 0.827). In Montes Claros, cases reduced in both the control and intervention areas from the pre-intervention period to the intervention period (p = 0.913). In the post-intervention period, the incidence increased in the control area, while cases continued to decrease in the DMC area (p = 0.188). CONCLUSIONS: The use of DMC was associated with a reduction of 27% in the incidence of HVL during the period of DMC delivery, indicating that DMC is effective as an additional strategy for controlling visceral leishmaniasis in Brazil. However, no significant reduction associated with DMC was detected after the intervention period, suggesting that a control program based on the large-scale deployment of DMC might have to be maintained for more extended periods without interruption.

Are pvcrt-o and pvmdr1 Gene Mutations Associated with Plasmodium vivax Chloroquine-Resistant Parasites?

(1) Background: Malaria remains a significant global public health issue. Since parasites quickly became resistant to most of the available antimalarial drugs, treatment effectiveness must be constantly monitored. In Brazil, up to 10% of cases of vivax malaria resistant to chloroquine (CQ) have been registered. Unlike P. falciparum, there are no definitive molecular markers for the chemoresistance of P. vivax to CQ. This work aimed to investigate whether polymorphisms in the pvcrt-o and pvmdr1 genes could be used as markers for assessing its resistance to CQ. (2) Methods: A total of 130 samples from P. vivax malaria cases with no clinical and/or parasitological evidence of CQ resistance were studied through polymerase chain reaction for gene amplification followed by target DNA sequencing. (3) Results: In the pvcrt-o exons, the K10 insert was present in 14% of the isolates. Regarding pvmdr1, T958M and F1076L haplotypes showed frequencies of 95% and 3%, respectively, while the SNP Y976F was not detected. (4) Conclusions: Since K10-pvcrt-o and F1076L/T958M-pvmdr1 polymorphisms were detected in samples from patients who responded well to CQ treatment, it can be concluded that mutations in these genes do not seem to have a potential for association with the phenotype of CQ resistance.

Real-time changes in rib cage expansion and use of abdominal mechanical stimulation in newborns: a quasi-experimental study / Mudanças na expansibilidade torácica com o uso de estímulo mecânico na região abdominal em recém-nascidos: um estudo quase-experimental

ABSTRACT Objective: To assess the rib cage expansion and respiratory rate in newborns using an abdominal stabilization band. Methods: The study included 32 newborns of both genders, with gestational age between 35 and 41 weeks. The abdominal stabilization band was used for 15 minutes between the xiphoid process and the anterosuperior iliac crest, with an abdominal contention 0.5cm smaller than the abdominal circumference. The rib cage expansion was evaluated by a breathing transducer (Pneumotrace II™) three minutes before using the band, during the use (15 minutes), and ten minutes after removing the band. The Shapiro-Wilk test verified data normality, and the Wilcoxon test compared the variables considering rib cage expansion and respiratory rate. Significance was set to p<0.05. Results: There was an increase in respiratory rate when comparing before and ten minutes after removing (p=0.008) the abdominal stabilization band, as well as when comparing during its use and ten minutes after its removal (p=0.001). There was also an increase in rib cage expansion when comparing before and during the use of the abdominal stabilization band (p=0.005). Conclusions: The use of the abdominal stabilization band promoted an increase in the rib cage expansion and respiratory rate in the assessed newborns and may be a viable option to improve the respiratory kinematics of this population.

RESUMO Objetivo: Avaliar a expansibilidade torácica e a frequência respiratória em recém-nascidos que fizeram uso de uma faixa de estabilização abdominal. Métodos: O estudo incluiu 32 recém-nascidos de ambos os sexos, com idade gestacional entre 35 e 41 semanas. A faixa de estabilização abdominal foi mantida por 15 minutos entre o processo xifoide e a espinha ilíaca anterossuperior, com contenção abdominal 0,5 cm menor do que a circunferência abdominal. A expansibilidade torácica foi avaliada por um transdutor piezoelétrico (Pneumotrace II™) 3 minutos antes do uso da faixa, durante 15 minutos, e 10 minutos após sua retirada. A normalidade das variáveis foi testada pelo teste de Shapiro-Wilk e a análise comparativa da expansibilidade torácica e da frequência respiratória foi realizada por meio do teste t pareado, considerando-se p<0,05. Resultados: Houve aumento da frequência respiratória quando comparados os tempos antes do uso da faixa e 10 minutos após a retirada (p=0,008), bem como quando comparados os tempos durante o uso e 10 minutos após a retirada da faixa (p=0,001). Houve aumento da expansibilidade torácica quando comparados os tempos antes e durante o uso da faixa (p=0,005). Conclusões: O uso da faixa de estabilização abdominal conferiu aumento da expansibilidade torácica e da frequência respiratória nos recém-nascidos estudados, podendo ser uma opção viável para a melhora da cinemática respiratória dessa população.

Prevention and control of infection related to peripheral arterial catheter management / Prevención y control de infecciones relacionadas con el manejo del catéter arterial periférico / Prevenção e controle de infecção relacionada ao manejo de cateter arterial periférico

ABSTRACT Objective: to describe scientific evidence on good practices for peripheral arterial catheter management. Method: this is an integrative review, carried out through a search in the Latin American and Caribbean Literature in Health Sciences, Virtual Health Nursing Library, National Library of Medicine, Cochrane Library, Cumulative Index to Nursing & Allied Health, Excerpta Medica dataBASE, SciVerse Scopus TopCited and Web of Science databases in March 2021. Articles in Portuguese, English and Spanish, without time limits in the search, were included. Results: forty-nine articles were found. At insertion, measures involved hand hygiene, skin preparation, no-touch technique, aseptic technique and protective barrier, sterile components and transducers, peripheral arterial catheter insertion, insertion attempts, ultrasound and comfort measure use. During maintenance, issues regarding insertion site, invasive blood pressure circuit, connectors, dressing and stabilization were identified, and, during removal, aspects such as local and systemic complications after peripheral arterial catheter removal. Conclusion: the study provides crucial information for the effective management of peripheral arterial catheters, contributing to the reduction of complications and improvement of clinical results. By updating their practices, healthcare professionals can ensure greater safety and well-being for patients, always seeking to provide excellent care.

RESUMEN Objetivo: describir la evidencia científica sobre buenas prácticas para el manejo de catéteres arteriales periféricos. Método: revisión integradora, realizada a través de una búsqueda en las bases de datos Literatura Latinoamericana y del Caribe en Ciencias de la Salud, Biblioteca Virtual en Enfermería en Salud, National Library of Medicine, Cochrane Library, Cumulative Index to Nursing & Allied Health, Excerpta Medica dataBASE, SciVerse Scopus TopCited y Web of Science en marzo de 2021. Se incluyeron artículos en portugués, inglés y español, sin límite de tiempo en la búsqueda. Resultados: se encontraron 49 artículos. En la inserción, las medidas incluyeron higiene de manos, preparación de la piel, técnica de no contacto, técnica aséptica y barrera protectora, componentes y transductores estériles, Inserción de catéter arterial periférico, intentos de inserción, uso de ultrasonido y medidas de comodidad. Durante el mantenimiento se identificaron problemas relacionados con el sitio de inserción, circuito de presión arterial invasiva, conectores, vendaje y estabilización y, durante el retiro, aspectos como complicaciones locales y sistémicas, luego del retiro del catéter arterial periférico. Conclusión: el estudio proporciona información crucial para el manejo eficaz de los catéteres arteriales periféricos, contribuyendo a la reducción de complicaciones y mejora de los resultados clínicos. Al actualizar sus prácticas, los profesionales de la salud pueden garantizar una mayor seguridad y bienestar a los pacientes, buscando siempre brindar una excelente atención.

RESUMO Objetivo: descrever as evidências científicas sobre as boas práticas para o manejo de cateter arterial periférico. Método: revisão integrativa, realizada por meio de busca nas bases de dados Literatura Latino-Americana e do Caribe em Ciências da Saúde, Biblioteca Virtual em Saúde Enfermagem, National Library of Medicine, Cochrane Library, Cumulative Index to Nursing & Allied Health, Excerpta Medica dataBASE, SciVerse Scopus TopCited e Web of Science em março de 2021. Foram incluídos artigos em português, inglês e espanhol, sem delimitação de tempo na busca. Resultados: foram encontrados 49 artigos. Na inserção, as medidas envolveram higienização das mãos, preparo da pele, técnica no touch, técnica asséptica e barreira de proteção, componentes estéreis e transdutores, inserção do cateter arterial periférico, tentativas de inserção, uso do ultrassom e medidas de conforto. Na manutenção, questões sobre o sítio de inserção, circuito da pressão arterial invasiva, conectores, curativo e estabilização foram identificadas e, na retirada, aspectos como complicações locais e sistêmicas, após retirada do cateter arterial periférico. Conclusão: o estudo fornece informações cruciais para o eficaz manejo do cateter arterial periférico, contribuindo para a redução de complicações e aprimoramento dos resultados clínicos. Ao atualizar suas práticas, os profissionais de saúde podem assegurar maior segurança e bem-estar aos pacientes, buscando sempre oferecer um atendimento de excelência.

Sistema de acciones dirigido al proceso docente en contingencias epidemiológicas: experiencia en Guantánamo / System of actions aimed at the teaching process in epidemiological contingencies: experience in Guantánamo / System of actions aimed at the teaching process in epidemiological contingencies: experience in Guantánamo / Sistema de ações voltadas ao processo de ensino em contingências epidemiológicas: experiência em Guantánamo

Introducción: La pasada contingencia epidemiológica causada por el SARS-CoV-2, representó una grave situación sanitaria que impactó todas las esferas de la vida con consecuencias negativas, incluida la educación. Objetivo: Proponer un sistema de acciones diseñado para garantizar los resultados académicos del año terminal de la carrera de Medicina (curso 2020-2021) durante el rebrote de COVID-19 como propuesta metodológica ante contingencias epidemiológicas. Método: Se partió de los resultados de una Investigación-acción participativa como estudio cualitativo previo, utilizada como mecanismo para generar ideas y como método principal de recolección de datos, donde, mediante modalidades de muestreo intencional fueron seleccionados informantes clave entre estudiantes y docentes a los que le fueron aplicadas como técnicas la observación participante y la entrevista abierta activa previamente concebida. Los datos obtenidos en el trabajo de campo, fueron exhaustivamente analizados, codificados. La confección del informe final permitió el diseño de las acciones. Resultados: La puesta en marcha del sistema de acciones diseñado, amparada por los documentos normativos, permitió efectuar la descentralización del 6to. año de la carrera de Medicina hacia sus municipios de residencia, con garantías para el afianzamiento de conocimientos y habilidades, confirmado por los resultados obtenidos en los exámenes estatales. Conclusiones: Se propone la utilización, como herramienta metodológica, del sistema de acciones, el cual contribuyó de manera eficaz a sistematizar conocimientos y habilidades por los estudiantes durante el curso 2020-2021, demostrado por sus resultados académicos, lo cual avala su pertinencia en contingencias epidemiológicas.(AU)

Introduction: The past epidemiological contingency caused by SARS-CoV-2 represented a serious health situation that impacted all spheres of life with negative consequences, including education. Objective: Propose a system of actions designed to guarantee the academic results of the final year of the Medicine degree (2020-2021 academic year) during the outbreak of COVID-19 as a methodological proposal in the face of epidemiological contingencies. Method: We started from the results of a participatory action research as a previous qualitative study, used as a mechanism to generate ideas and as the main method of data collection, where, through intentional sampling modalities, key informants were selected among students and teachers to whom that participant observation and the previously conceived active open interview were applied as techniques. The data obtained in the field work were exhaustively analyzed and coded. The preparation of the final report allowed the design of the actions. Results: The implementation of the designed system of actions, supported by the regulatory documents, allowed the decentralization of the 6th. year of the Medicine degree towards their municipalities of residence, with guarantees for the strengthening of knowledge and skills, confirmed by the results obtained in the state exams. Conclusions: A system of actions is presented that effectively contributed to systematizing knowledge and skills by students during the 2020-2021 academic year, demonstrated by their academic results, which supports its relevance in epidemiological contingencies.(AU)

Introdução: A contingência epidemiológica passada causada pelo SARS-CoV-2 representou uma grave situação de saúde que impactou todas as esferas da vida com consequências negativas, incluindo a educação. Objetivo: Propor um sistema de ações destinadas a garantir os resultados acadêmicos do último ano do curso de Medicina (ano letivo 2020-2021) durante o surto de COVID-19 como proposta metodológica diante das contingências epidemiológicas. Método: Partimos dos resultados de uma pesquisa-ação participante como um estudo qualitativo prévio, utilizado como mecanismo de geração de ideias e como principal método de coleta de dados, onde, por meio de modalidades de amostragem intencional, foram selecionados informantes-chave entre alunos e professores para a quem foram aplicadas como técnicas a observação participante e a entrevista aberta ativa previamente concebida. Os dados obtidos no trabalho de campo foram exaustivamente analisados e codificados. A elaboração do relatório final permitiu o desenho das ações. Resultados: A implementação do sistema de ações desenhado, apoiado nos documentos normativos, permitiu a descentralização do 6º. ano do curso de Medicina para os seus municípios de residência, com garantias de fortalecimento de conhecimentos e competências, confirmadas pelos resultados obtidos nos exames estaduais. Conclusões: Apresenta-se um sistema de ações que contribuiu efetivamente para a sistematização de conhecimentos e competências dos estudantes durante o ano letivo 2020-2021, demonstrado pelos seus resultados académicos, o que sustenta a sua relevância em contingências epidemiológicas.(AU)