Effect of different instrumentation techniques on students' performance and outcomes of nonsurgical root canal treatment.

OBJECTIVES: This study compared, retrospectively, the incidence of clinical errors and effects on treatment outcomes, when students were exposed to two different instrumentation techniques: a hybrid rotary technique (HYB), consisting of both hand instrumentation with hand stainless steel and Ni-Ti files plus the use of a rotary system (Vortex Blue, Dentsply Sirona), versus a full reciprocation instrumentation technique (WaveOne Gold [WOG], Dentsply Sirona). METHODS: A total of 368 endodontic cases (n = 184) in anterior and premolar teeth, completed by dental students at the University of Michigan School of Dentistry from 2013 to 2022, were used for the study. The groups were evaluated by two calibrated clinicians, observing the incidence of clinical errors: file separations, over-instrumentation, ledges and transportations. Treatment outcomes were also observed. Data were analyzed statistically by Fisher's exact test and Mann-Whitney U test (p < 0.05). RESULTS: No significant difference in file separations, ledges, and transportation was observed between the two groups. However, the WOG Group experienced significantly more over-instrumentation than HYB group, although this did not significantly affect tooth survival or periapical index (PAI). Cases with PAI scores of 5 were found to have significantly less tooth survival compared to the other PAI scores. CONCLUSIONS: It can be concluded that both techniques in our study are well suited to advancing the endodontic dental education of students and novice operators, anticipating relatively successful outcomes of tooth survival, as long as the cases selected are less severe in progression preoperatively.

Comparison of weighting algorithms to mitigate respiratory motion in free-breathing neonatal pulmonary radial UTE-MRI.

Background. Thoracoabdominal MRI is limited by respiratory motion, especially in populations who cannot perform breath-holds. One approach for reducing motion blurring in radially-acquired MRI is respiratory gating. Straightforward 'hard-gating' uses only data from a specified respiratory window and suffers from reduced SNR. Proposed 'soft-gating' reconstructions may improve scan efficiency but reduce motion correction by incorporating data with nonzero weight acquired outside the specified window. However, previous studies report conflicting benefits, and importantly the choice of soft-gated weighting algorithm and effect on image quality has not previously been explored. The purpose of this study is to map how variable soft-gated weighting functions and parameters affect signal and motion blurring in respiratory-gated reconstructions of radial lung MRI, using neonates as a model population.Methods. Ten neonatal inpatients with respiratory abnormalities were imaged using a 1.5 T neonatal-sized scanner and 3D radial ultrashort echo-time (UTE) sequence. Images were reconstructed using ungated, hard-gated, and several soft-gating weighting algorithms (exponential, sigmoid, inverse, and linear weighting decay outside the period of interest), with %Nprojrepresenting the relative amount of data included. The apparent SNR (aSNR) and motion blurring (measured by the maximum derivative of image intensity at the diaphragm, MDD) were compared between reconstructions.Results. Soft-gating functions produced higher aSNR and lower MDD than hard-gated images using equivalent %Nproj, as expected. aSNR was not identical between different gating schemes for given %Nproj. While aSNR was approximately linear with %Nprojfor each algorithm, MDD performance diverged between functions as %Nprojdecreased. Algorithm performance was relatively consistent between subjects, except in images with high noise.Conclusion. The algorithm selection for soft-gating has a notable effect on image quality of respiratory-gated MRI; the timing of included data across the respiratory phase, and not simply the amount of data, plays an important role in aSNR. The specific soft-gating function and parameters should be considered for a given imaging application's requirements of signal and sharpness.

Effectiveness of a training program for the management of risky alcohol use in primary care professionals based on motivational interviewing / Eficacia de un programa de formación para el manejo del consumo de riesgo de alcohol en profesionales de atención primaria basado en la entrevista motivacional

Objective: To assess the effectiveness of a training program for Primary Care (PC) professionals developed to increase knowledge, attitudes, and skills for managing patients with risky alcohol use and in the motivational interview. Design: Multicenter, two-arm parallel, randomized, open-label controlled clinical trial. Setting: PC of the Andalusian Health Service. Participants: The study was completed by 80 healthcare professionals from 31 PC centers. Interventions: In both experimental and control groups, a workshop on managing patients with risky alcohol consumption and the resolution of two videotaped clinical cases with standardized patients were conducted. The experimental group attended a workshop on motivational interviewing. Main measurements: Knowledge about managing risky alcohol use, clinical performance in patients with this health problem, and assessment of the motivational interview. Results: Mean age was 39.50±13.06 – SD – (95% CI: 36.59–42.41); 71.3% (95% CI: 61.1–80.9%) were women. The average score of both groups in the knowledge questionnaire before the training program was 15.10±4.66, becoming 21.99±3.93 points after the training (95% CI: 5.70–7.92; p<0.001). The experimental group showed an average score of 18.53±13.23 before the intervention with the motivational interview and 28.33±11.86 after this intervention (p=0.002). In contrast, no significant variation was found in the score of the control group. Conclusions: A training program aimed at PC professionals designed to increase knowledge on how to manage risky alcohol use and acquire communication skills in motivational interviewing is effective.(AU)

Objetivo: Evaluar la efectividad de un programa de formación para profesionales de Atención Primaria (AP) para incrementar conocimientos, actitudes y habilidades en el manejo de pacientes con consumo de riesgo de alcohol y en la entrevista motivacional. Diseño: Ensayo clínico controlado, abierto, aleatorizado, multicéntrico, paralelo de dos brazos. Emplazamiento: Centros de AP del Servicio Andaluz de Salud. Participantes: Fue completado por 80 profesionales sanitarios de 31 centros. Intervenciones: En el grupo experimental y en el control se realizó un taller de manejo de pacientes con consumo de riesgo de alcohol y la resolución de dos casos clínicos videograbados con pacientes estandarizados. El grupo experimental asistió a un taller sobre entrevista motivacional. Mediciones principales: Conocimiento sobre el manejo del consumo de riesgo de alcohol, desempeño clínico en pacientes con este problema de salud y valoración de la entrevista motivacional. Resultados: La edad media fue 39.50±13,06 -DE- (IC 95%: 36,59-42,41); El 71,3% (IC 95%: 61,1%-80,9%) eran mujeres. La puntuación media en el cuestionario de conocimientos antes del programa de formación fue de 15,10±4,66, siendo 21,99±3,93 puntos después del entrenamiento (IC 95%:5,70-7,92; p<0,001). La puntuación promedio del grupo experimental antes de la intervención con la entrevista motivacional era de 18,53±13,23 y después de 28,33±11,86 (p=0,002). No se encontró variación significativa en la puntuación del grupo control. Conclusiones: Un programa de formación para profesionales de AP, para incrementar el conocimiento sobre cómo gestionar el consumo de riesgo de alcohol y adquirir habilidades comunicativas en la entrevista motivacional es efectivo.(AU)

Floquet Engineering of a Diatomic Molecule through a Bichromatic Radiation Field.

We report on a theoretical study of a Cs2 molecule illuminated by two lasers and show how this can result in novel quantum dynamics. We reveal that these interactions facilitate the bypass of the non-crossing rule, forming light-induced conical intersections and modifiable avoided crossings. Our findings show how laser field orientation and strength, along with initial phase differences, can control molecular-state transitions, especially on the micromotion scale. We also extensively discuss how the interaction of radiation with matter gives rise to the emergence of potential energy surfaces of hybrids of radiation and molecular states. This research advances a technique for manipulating photoassociation processes in Cs2 molecules, offering potential new avenues in quantum control.

Incidence of microvascular dysfunction is increased in hyperlipidemic mice, reducing cerebral blood flow and impairing remote memory.

Introduction: The development of cognitive dysfunction is not necessarily associated with diet-induced obesity. We hypothesized that cognitive dysfunction might require additional vascular damage, for example, in atherosclerotic mice. Methods: We induced atherosclerosis in male C57BL/6N mice by injecting AAV-PCSK9DY (2x1011 VG) and feeding them a cholesterol-rich Western diet. After 3 months, mice were examined for cognition using Barnes maze procedure and for cerebral blood flow. Cerebral vascular morphology was examined by immunehistology. Results: In AAV-PCSK9DY-treated mice, plaque burden, plasma cholesterol, and triglycerides are elevated. RNAseq analyses followed by KEGG annotation show increased expression of genes linked to inflammatory processes in the aortas of these mice. In AAV-PCSK9DY-treated mice learning was delayed and long-term memory impaired. Blood flow was reduced in the cingulate cortex (-17%), caudate putamen (-15%), and hippocampus (-10%). Immunohistological studies also show an increased incidence of string vessels and pericytes (CD31/Col IV staining) in the hippocampus accompanied by patchy blood-brain barrier leaks (IgG staining) and increased macrophage infiltrations (CD68 staining). Discussion: We conclude that the hyperlipidemic PCSK9DY mouse model can serve as an appropriate approach to induce microvascular dysfunction that leads to reduced blood flow in the hippocampus, which could explain the cognitive dysfunction in these mice.

Beyond the Classic Causes of Dysphagia: Bayford-Autenrieth Dysphagia.

Dysphagia lusoria (DL) is a rare clinical entity that presents with dysphagia derived from the anatomical obstruction of the esophagus by an aberrant vessel originating from the right subclavian artery. We present the case of a 64-year-old patient with a medical history of chronic, intermittent, mild, and self-limited dysphagia for over 20 years, wherein we formulated the diagnosis of DL. A 64-year-old woman arrived at the emergency department with a 24-hour history of acute progressive dysphagia, leading to intolerance to oral intake and minimal exertion dyspnea. A thorough clinical analysis and exclusion of other more common clinical entities will lead to its diagnosis. Our patient presented with respiratory symptoms, which is rare considering that these clinical presentations are more common in the pediatric population, explained by its tracheal elasticity. The combination of respiratory symptoms in an elderly patient, along with the typical mechanical dysphagia of DL, adds complexity to the diagnostic process, making this case unique.

Cocaine-Induced Asthma and the "Crack Lung": A Case Report.

Cocaine, the second most used illicit drug, is associated with cardiovascular, pulmonary, and other complications. Lung involvement associated with cocaine use, also known as "crack lung syndrome" (CLS), can elicit new-onset and exacerbate chronic pulmonary conditions. A 28-year-old female with a history of chronic controlled asthma arrived at the Emergency Department (ED), referring to cocaine inhalation, followed by symptoms compatible with an asthmatic crisis, requiring immediate steroid and bronchodilator therapy. Radiological studies and bronchoscopy confirmed CLS diagnosis. Despite treatment with oxygen, bronchodilators, and steroids, the asthmatic crises persisted. However, after 48 hours, we observed a complete regression of the lung infiltrates. This case highlights the importance of clinical suspicion, bronchoscopy findings, and the potential co-occurrence of CLS with asthma exacerbations. While computed tomography (CT) scans can be helpful, they should not be the only tool to diagnose CLS. The successful management of CLS involves the use of bronchodilators, steroids, and oxygen therapy and abstaining from cocaine use. Researchers should conduct further studies to diagnose and treat CLS in conjunction with acute asthma symptoms to assist this patient population better.

"It's Not That We Care Less": Insights into Health Care Utilization for Comorbid Diabetes and Depression among Latinos.

Despite robust knowledge regarding the socio-economic and cultural factors affecting Latino* access to healthcare, limited research has explored service utilization in the context of comorbid conditions like diabetes and depression. This qualitative study, embedded in a larger mixed-methods project, aimed to investigate perceptions held by Latinos and their social support systems (i.e., family members) regarding comorbid diabetes and depression and to identify barriers and facilitators to their help-seeking behaviors and treatment engagement. Bilingual and bicultural researchers conducted eight focus groups with 94 participants in a large U.S. metropolitan area and were primarily conducted in Spanish. The participants either had a diagnosis of diabetes and depression or were closely associated with someone who did. This study identified key individual and structural barriers and facilitators affecting healthcare access and treatment for Latinos living with comorbid diagnoses. A thematic analysis revealed structural barriers to healthcare access, including financial burdens and navigating healthcare institutions. Personal barriers included fears, personal responsibility, and negative family dynamics. Facilitators included accessible information, family support, and spirituality. These findings underscore the need to address these multi-level factors and for healthcare institutions and providers to actively involve Hispanic community members in developing services and interventions.

Efecto de la deuda económica sobre el bienestar psicológico de los residentes de cirugía: Resultados de un estudio nacional en Colombia / Effect of financial debt on the psychological well-being of surgery residents: Results of a national study in Colombia

Introducción. La deuda económica durante la residencia en cirugía general puede afectar el desempeño profesional, las decisiones de vida y el bienestar psicológico. La información disponible en Colombia es limitada. El objetivo de este estudio fue cuantificar la deuda económica del residente de cirugía general, identificar los factores asociados y evaluar su efecto en el bienestar psicológico. Métodos. Estudio de corte transversal analítico. Se invitó a 380 residentes a diligenciar una encuesta sobre los aspectos relacionados con su deuda económica y se utilizó el WHO-index para evaluar su bienestar psicológico. Resultados. Un total de 259 residentes participaron en el estudio (67,6 %). El 56 % posee una deuda económica promedio de COP $88.000.000 ((US$21.826)). Un alto nivel de endeudamiento se relacionó con el año de residencia, el tipo de institución (privada) y la solicitud de préstamos. Se identificó algún trastorno mental en 14,7 % y un bajo nivel de bienestar psicológico en 56,4 % de los participantes. No se identificó ninguna asociación entre una elevada deuda económica y el bajo bienestar psicológico. Conclusiones. La deuda económica tiene un efecto sobre los residentes. El endeudamiento de los residentes de cirugía en Colombia es altamente prevalente, y no se correlaciona con un pobre bienestar psicológico. La autodeterminación favorece el bienestar psicológico en el posgrado en cirugía general. Existe la necesidad de educación financiera en los residentes. Se requieren nuevos estudios que evalúen las causas del pobre bienestar psicológico.

Introduction. Financial debt during surgery residency can affect professional performance, life decisions, and psychological well-being. The information available in Colombia is limited. The objective of this study is to quantify the financial debt of the general surgery resident, identify the associated factors and evaluate their effect on psychological well-being. Methods. A cross-sectional study was carried out. A total of 380 residents were invited to complete a survey on aspects related to their financial debt, and the WHO-index to evaluate their psychological well-being. Results. A total of 259 residents participated in the study (67.6%). 56% have an average economic debt of $88,000,000 COP (US$21,826). High debt was related to level of residence, type of institution (private), and loan application. Some mental disorder was identified in 14.7% and a low level of psychological well-being in 56.4% of the participants. No association was identified between high financial debt and low psychological well-being. Conclusions. Economic debt has an effect on residents. Financial debt among surgical residents in Colombia is highly prevalent; however, it does not correlate with poor psychological well-being. Self-determination favors psychological well-being in the postgraduate course in general surgery. Likewise, the need for financial education in residents is imminent. New studies are required that thoroughly evaluate the causes of poor well-being.

Phosphatidylcholine-deficient suppressor mutant of Sinorhizobium meliloti, altered in fatty acid synthesis, partially recovers nodulation ability in symbiosis with alfalfa (Medicago sativa).

Rhizobial phosphatidylcholine (PC) is thought to be a critical phospholipid for the symbiotic relationship between rhizobia and legume host plants. A PC-deficient mutant of Sinorhizobium meliloti overproduces succinoglycan, is unable to swim, and lacks the ability to form nodules on alfalfa (Medicago sativa) host roots. Suppressor mutants had been obtained which did not overproduce succinoglycan and regained the ability to swim. Previously, we showed that point mutations leading to altered ExoS proteins can reverse the succinoglycan and swimming phenotypes of a PC-deficient mutant. Here, we report that other point mutations leading to altered ExoS, ChvI, FabA, or RpoH1 proteins also revert the succinoglycan and swimming phenotypes of PC-deficient mutants. Notably, the suppressor mutants also restore the ability to form nodule organs on alfalfa roots. However, nodules generated by these suppressor mutants express only low levels of an early nodulin, do not induce leghemoglobin transcript accumulation, thus remain white, and are unable to fix nitrogen. Among these suppressor mutants, we detected a reduced function mutant of the 3-hydoxydecanoyl-acyl carrier protein dehydratase FabA that produces reduced amounts of unsaturated and increased amounts of shorter chain fatty acids. This alteration of fatty acid composition probably affects lipid packing thereby partially compensating for the previous loss of PC and contributing to the restoration of membrane homeostasis.

Population-Based Cancer Prevention Education Intervention Through mHealth: A Randomized Controlled Trial.

Despite the high potential of mHealth-related educational interventions to reach large segments of the population, implementation and adoption of such interventions may be challenging. The objective of this study was to gather knowledge on the feasibility of a future cancer prevention education intervention based on the European Code Against Cancer (ECAC), using a population-based mHealth implementation strategy. A type-2 hybrid effectiveness-implementation study was conducted in a sample of the Spanish general population to assess adoption, fidelity, appropriateness, and acceptability of an intervention to disseminate cancer prevention messages, and willingness to consult further digital information. Participation rates, sociodemographic data, mHealth use patterns and implementation outcomes were calculated. Receiving cancer prevention messages through mHealth is acceptable, appropriate (frequency, timing, understandability and perceived usefulness) and feasible. mHealth users reported high access to the Internet through different devices, high ability and confidence to browse a website, and high willingness to receive cancer prevention messages in the phone, despite low participation rates in comparison to the initial positive response rates. Although adoption of the intervention was high, post-intervention fidelity was seriously hampered by the disruptions caused by the Covid-19 pandemic, which may have affected recall bias. In the context of the Europe's Beating Cancer Plan to increase knowledge about cancer prevention across the European Union, this study contributes to inform the design of future interventions using mHealth at large scale, to ensure a broad coverage and adoption of cancer prevention messages as those promoted by the ECAC.Trial Registration: ClinicalTrials.gov from the U.S. National Library of Medicine, NCT05992792. Registered 15 August 2023 - Retrospectively registered https://clinicaltrials.gov/study/NCT05992792?cond=Cancer&term=NCT05992792&rank=1 .

Reflexiones para optimizar el triaje en cirugía / Reflections to optimize triage in surgery

Introducción: La categorización de las urgencias quirúrgicas es una necesidad en razón al continuo desequilibrio entre la oferta y la demanda de servicios quirúrgicos en la mayoría de las instituciones donde se encuentra habilitada la prestación del servicio. Hay abordajes en el tema, con estrategias de priorización de los casos quirúrgicos, que consideran escalas y flujogramas, pero su ausente validez externa y las particularidades de las instituciones y aseguradores, han limitado una generalización de los resultados. Métodos: Se efectúa una conceptualización del triaje de las urgencias quirúrgicas con planteamientos críticos y reflexivos soportados en la evidencia. Se identifican, asimismo, las posibles oportunidades para la investigación. Discusión: Los beneficios potenciales de un triaje quirúrgico en situaciones de urgencia, son extensivos a todos los actores del sistema de salud, disminuyen la posibilidad de desenlaces y repercusiones económicas negativas para las instituciones y los aseguradores. La teoría de las colas ofrece el soporte para un entendimiento del tema y contribuye en las soluciones. Su adopción es escasa como parte de una estrategia local de priorización quirúrgica en un contexto de urgencia. Conclusión:La creación de estrategias que establezcan el triaje para el paciente con una urgencia quirúrgica están influenciadas por la participación continua y efectiva de los actores involucrados en el proceso y en su impacto en los desenlaces clínicos

Introduction: Categorizing surgical emergencies is necessary due to the continued imbalance between the supply and demand of surgical services in most institutions where the service is enabled. There are approaches to the subject, with strategies for prioritizing surgical cases, which consider scales and flowcharts, but their lack of external validity and the particularities of the institutions and insurers have limited the generalization of the results. Methods: A conceptualization of the triage of surgical emergencies is carried out with critical and reflective approaches supported by evidence. Potential research opportunities are also identified. Discussion: The potential benefits of surgical triage in emergent situations are extensive to all health system actors, reducing the possibility of adverse outcomes and economic repercussions for institutions and insurers. Queuing theory offers support for understanding the issue and contributes to solutions. However, its adoption is scarce in an emergency as part of a local surgical prioritization strategy. Conclusion: The creation of strategies that establish triage for the patient with a surgical emergency is influenced by the continuous and effective participation of the actors involved in the process and its impact on clinical outcomes

Alcance para Colombia de la declaración de la World Society of Emergency Surgery 2022 sobre el entrenamiento en cirugía digestiva mínimamente invasiva de emergencia / Scope for Colombia of the World Society of Emergency Surgery 2022 declaration on training in emergency minimally invasive digestive surgery

Introducción. El currículo para la formación del cirujano general exige precisión, ajuste al contexto y factibilidad. En 2022, la World Society of Emergency Surgery formuló cinco declaraciones sobre el entrenamiento en cirugía digestiva mínimamente invasiva de emergencia que puede contribuir a estos propósitos. El objetivo del presente artículo fue examinar el alcance de estas declaraciones para la educación quirúrgica en Colombia. Métodos. Se analizó desde una posición crítica y reflexiva el alcance y limitaciones para Colombia de cada una de las declaraciones de la World Society of Emergency Surgery, con base en la evidencia empírica publicada durante las últimas dos décadas en revistas indexadas nacionales e internacionales. Resultados. La evidencia empírica producida en Colombia durante el presente siglo permite identificar que el país cuenta con fundamentos del currículo nacional en cirugía general, formulado por la División de Educación de la Asociación Colombiana de Cirugía en 2021; un sistema de acreditación de la educación superior; un modelo de aseguramiento universal en salud; infraestructura tecnológica y condiciones institucionales que pueden facilitar la adopción exitosa de dichas declaraciones para el entrenamiento de los futuros cirujanos en cirugía digestiva mínimamente invasiva de emergencia. No obstante, su implementación requiere esfuerzos mayores e inversión en materia de simulación quirúrgica, cooperación institucional y fortalecimiento del sistema de recertificación profesional. Conclusión. La educación quirúrgica colombiana está en capacidad de cumplir con las declaraciones de la World Society of Emergency Surgery en materia de entrenamiento en cirugía digestiva mínimamente invasiva de emergencia.

Introduction. The general surgeon training curriculum requires precision, contextual fit, and feasibility. In 2022, the World Society of Emergency Surgery formulated five statements on training in emergency minimally invasive digestive surgery, which can contribute to these purposes. This article examines the scope of these declarations for surgical education in Colombia. Methods. The scope and limitations for Colombia of each of the statements of the World Society of Emergency Surgery were analysed from a critical and reflective position, based on empirical evidence published during the last two decades in national and international indexed journals. Results. The empirical evidence produced in Colombia during this century allows us to identify that the country has the foundations of the national curriculum in general surgery, formulated by the Education Division of the Colombian Association of Surgery in 2021; a higher education accreditation system; a universal health insurance model; technological infrastructure, and institutional conditions that can facilitate the successful adoption of said statements for the training of future surgeons in emergency minimally invasive digestive surgery. However, its implementation requires greater efforts and investment in surgical simulation, institutional cooperation, and strengthening of the professional recertification system. Conclusion. Colombian surgical education is able to comply with the declarations of the World Society of Emergency Surgery regarding training in emergency minimally invasive digestive surgery.

Primary Care Professionals' Empathy and Its Relationship to Approaching Patients with Risky Alcohol Consumption.

The aim of this study was to estimate the level of empathy among primary care (PC) health professionals and its relationship with their approach to patients at risk due to alcohol consumption. This is an observational, descriptive, and multicenter study that included 80 PHC professionals. The professionals completed a questionnaire comprising socio-occupational questions and inquiries regarding their actions when dealing with patients suspected of risky alcohol consumption. The Jefferson Scale of Empathy was used to measure their level of empathy and was completed by 80 professionals, of whom 57.5% were family physicians, 10% were nurses, and 32.5% were family- and community-medicine residents. The mean age was 39.5 ± 13.1 (SD) (range of 24-65 years) and 71.3% were females. The mean empathy level score was 112.9 ± 11.1 (95% CI: 110.4-115.4; range: 81-132 points). Actions that stood out for their frequency were providing health advice in the general population, offering advice to pregnant women, and recommending abstinence to users of hazardous machinery or motor vehicles. The level of empathy was associated with age (p = 0.029), the health center's scope (p = 0.044), systematic alcohol exploration (p = 0.034), and follow-ups for patients diagnosed with risky consumption (p = 0.037). The mean score obtained indicated a high level of empathy among professionals. Professionals with greater empathy more frequently conducted systematic screening for risky alcohol consumption.

Efficacy of an aloe vera, chamomile, and thyme cosmetic cream for the prophylaxis and treatment of mild dermatitis induced by radiation therapy in breast cancer patients: a controlled clinical trial (Alantel Trials).

BACKGROUND: Dermatitis is a skin condition caused by multiple causes, including radiotherapy treatment. Pharmacological treatments can become chronic and are not exempt from side effects. The latest recommendations of the American Academy of Dermatology establish the use of natural, nourishing, and moisturizing cosmetic products as prevention and the first therapeutic step for dermatitis. Alantel® is a cream developed to reduce redness and irritation, promote the local immune system, combat immunosenescence, and promote the healing of epidermal lesions. The objective was to evaluate the effect of a cream (Alantel) based on natural products at high concentrations for the preventive and curative treatment (at early stages) of radiation-induced dermatitis in patients with breast cancer. METHODS: Our protocol is an experimental, prospective, triple-blind, multicenter, controlled clinical trial with two parallel arms. The experimental group will be treated with Alantel, while the control group will receive another moisturizing cream. Radiotherapy oncology professionals will recruit a total of 88 patients (44 per comparison group) with breast cancer who will receive radiotherapy oncology treatment for 15 days, and they will be randomly allocated to the experimental or control group. Selected patients will be followed up for four visits by primary care physicians for up to 1 week after completion of radiotherapy. The main study variable will be the incidence rate of mild post-radiation dermatitis. An intention-to-treat analysis will be performed, applying a comparison test for independent means and proportions. A bivariate and multivariate analysis will also be developed to check the treatment effect, adjusting for predictive sociodemographic and clinical variables. DISCUSSION: By carrying out this clinical trial, it is expected to verify that Alantel cream, based on natural products at high concentrations, has advantages over a moisturizing cream for the preventive and curative treatment of RD in patients with breast cancer. The COVID-19 pandemic has been influenced by delaying the start of the study. One of the main limitations of this study will be the time required to recruit the patients from the planned sample, given that the selection criteria are restrictive and, although the study is multicenter, recruitment will be coordinated through a single service on radiotherapy oncology. TRIAL REGISTRATION: ClinicalTrials.gov NCT04116151 . Registered on 4 October 2019.

Cerebrovascular Complications Associated With Iatrogenic Fungal Meningitis Following Surgical Procedures in Mexico.

BACKGROUND: The current fungal meningitis outbreak caused by contaminated epidural anesthesia with Fusarium solani among patients who underwent surgical procedures in Matamoros, Mexico remains a cause of concern. Its association with an increased susceptibility for cerebrovascular complications (CVC) has not been reported. This single-center study describes 3 patients with a unique pattern of CVC attributed to fungal meningitis. METHODS: A retrospective case series of patients diagnosed with fungal meningitis following surgical procedures under contaminated epidural anesthesia who developed a unique pattern of CVC during their hospitalization. RESULTS: Three female patients (mean age, 35 years) with CVC due to iatrogenic fungal meningitis were included. Positive Fungitell ß-D-glucan assay in cerebrospinal fluid was documented in all cases, and F. solani was confirmed by polymerase chain reaction in case 3. All cases were complicated by severe vertebrobasilar circulation vasculopathy and arterial dissections with resultant subarachnoid hemorrhage and intraventricular hemorrhage, ultimately leading to patients' death. CONCLUSIONS: The death toll from the ongoing fungal meningitis outbreak keeps rising, underscoring the need for early recognition and aggressive treatment. We highlight the risk for vertebrobasilar circulation CVC among these patients. The angioinvasive nature of F. solani is yet to be clarified; however, a clear pattern has been observed. Public health awareness should be raised and a strong response should be pursued.

Validity of Accelerometer-Based Sensor System for Muscle Tightness Estimation through Vibration on the Upper Limb.

Spasticity is a condition that profoundly impacts the ability to perform everyday tasks. However, its diagnosis requires trained physicians and subjective evaluations that may vary depending on the evaluator. Focal vibration of spastic muscles has been proposed as a non-invasive, pain-free alternative for spasticity modulation. We propose a system to estimate muscular tightness based on the propagation of elastic waves in the skin generated by focal vibration of the upper limb. The developed system generates focalized displacements on the biceps muscle at frequencies from 50 to 200 Hz, measures the vibration acceleration on the vibration source (input) and the distant location (output), and extracts features of ratios between input and output. The system was tested on 5 healthy volunteers while lifting 1.25 - 11.25 kg weights to increase muscle tone resembling spastic conditions, where the vibration frequency and weight were selected as explanatory variables. An increase in the ratio of the root mean squares proportional to the weight was found, validating the feasibility of the current approach to estimating muscle tightness.Clinical Relevance- This work presents the feasibility of a vibration-based system as an alternative method to objectively diagnose the degree of spasticity.

Effectiveness of a training program for the management of risky alcohol use in primary care professionals based on motivational interviewing.

OBJECTIVE: To assess the effectiveness of a training program for Primary Care (PC) professionals developed to increase knowledge, attitudes, and skills for managing patients with risky alcohol use and in the motivational interview. DESIGN: Multicenter, two-arm parallel, randomized, open-label controlled clinical trial. SETTING: PC of the Andalusian Health Service. PARTICIPANTS: The study was completed by 80 healthcare professionals from 31 PC centers. INTERVENTIONS: In both experimental and control groups, a workshop on managing patients with risky alcohol consumption and the resolution of two videotaped clinical cases with standardized patients were conducted. The experimental group attended a workshop on motivational interviewing. MAIN MEASUREMENTS: Knowledge about managing risky alcohol use, clinical performance in patients with this health problem, and assessment of the motivational interview. RESULTS: Mean age was 39.50±13.06 - SD - (95% CI: 36.59-42.41); 71.3% (95% CI: 61.1-80.9%) were women. The average score of both groups in the knowledge questionnaire before the training program was 15.10±4.66, becoming 21.99±3.93 points after the training (95% CI: 5.70-7.92; p<0.001). The experimental group showed an average score of 18.53±13.23 before the intervention with the motivational interview and 28.33±11.86 after this intervention (p=0.002). In contrast, no significant variation was found in the score of the control group. CONCLUSIONS: A training program aimed at PC professionals designed to increase knowledge on how to manage risky alcohol use and acquire communication skills in motivational interviewing is effective.

Chemometric Evaluation of RI-Induced Phytochemicals in Phaseolus vulgaris Seeds Indicate an Improvement on Liver Enzymes in Obese Rats.

Liver enzymes alterations (activity or quantity increase) have been recognized as biomarkers of obesity-related abnormal liver function. The intake of healthy foods can improve the activity of enzymes like aspartate and alanine aminotransferases (AST, ALT), γ-glutaminyl transferase (GGT), and alkaline phosphatase (ALP). Beans have a high concentration of several phytochemicals; however, Restriction Irrigation (RI) during plant development amends their synthesis. Using chemometric tools, we evaluated the capacity of RI-induced phytochemicals to ameliorate the high activity of liver enzymes in obese rats. The rats were induced with a high-fat diet for 4 months, subsequently fed with 20% cooked beans from well-watered plants (100/100), or from plants subjected to RI at the vegetative or reproduction stage (50/100, 100/50), or during the whole cycle (50/50) for 3 months. A partial least square discriminant analysis indicated that mostly flavonols have a significant association with serum AST and ALT activity, while isoflavones lowered GGT and ALP. For AST and ALT activity in the liver, saponins remained significant for hepatocellular protection and flavonoids remained significant as hepatobiliary protectants by lowering GGT and ALP. A principal component analysis demonstrated that several flavonoids differentiated 100/50 treatment from the rest, while some saponins were correlated to 50/100 and 50/50 treatments. The intake of beans cultivated under RI improves obesity-impaired liver alterations.

Post-FEC performance evaluation of optical SDM systems with mode-dependent loss.

This work is focused on the bit error rate (BER) performance of spatial division multiplexing (SDM) systems over an optical channel with mode-dependent loss or gain (collectively referred to in this paper as MDL). When the latter is non-negligible, the BER has a random nature that introduces the outage probability as an important performance metric for the system design and also impacts on the selection of a forward-error correction (FEC) scheme. In MDL-impaired SDM systems, the pre-FEC BER is a random variable whose probability density function (PDF) and coding gain depend on the signal-to-noise ratio (SNR) at the receiver input. Hence, the common and simple approach of adding a coding gain factor to the pre-FEC BER to obtain the post-FEC BER is not adequate, and numerical simulations are needed. In this paper, we simulate and analyze the performance in terms of post-FEC BER for two proposals of applying low-density parity check (LDPC) FEC encoder/decoder in a SDM system MDL-impaired and an optimal linear multiple input multiple output (MIMO) receiver. In the first one, the LDPC is applied independently to each mode, and in the second one, the LDPC is applied among all SDM modes. Simulation results indicate that the first proposal outperforms the second. Simplifications in the log-likelihood ratio (LLR) computations have also been considered.