Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

Introduction: preservation of the structural integrity of the permanent natural dentition is crucial for maintaining dental functionality and aesthetics.  Consequently, surgical endodontics treatment represents a last resort for achieving this objective, and its failure may jeopardize tooth survival. Endodontic failures can be addressed by non-surgical or surgical endodontic retreatment. Among the most common causes of endodontic failures are root perforations, also known as artificial openings caused in the root walls caused by iatrogenic factors, resorptive processes, among others. The objective to evaluate the efficacy of platelet-rich fibrin (A-PRF) in periapical surgery to promote bone regeneration and improve the prognosis of teeth with root perforations, Additionally, determine the impact on bone regeneration after periapical surgery. Methodology is experimental transversal because a case study is applied, taking information from the patient before, during and after the process. Results: reference data is obtained in the literature that reports an incidence of perforations between 0.7% and 10%, and the percentage of teeth extracted due to endodontic failure with perforations is between 2.9% and 4.2. % depending on the time elapsed since the perforation, the size of the perforation and in which root third the perforation is located, with the middle or cervical third having a poor prognosis. Considering the analysis of these data, the result is that the application of the protocol described in this report can be used as an alternative reference to the failure of non-surgical endodontic treatment to preserve a functional dental structure in the mouth for a greater amount of time. General Area of Study: Odontology. Specific area of study: Endodontic. Type of study: Clinical case.

Introduction: Foodborne diseases (FBD) are the leading public health problem worldwide. They originate from the consumption of food contaminated with feces or poorly cooked. They can cause gastrointestinal diseases in the population, and the main factors of contagion are lack of hygiene and improper product handling. Objective: To identify the presence of Escherichia coli / Coliformes spp. in street-cart ceviches (a traditional Ecuadorian chilled soup) from the “El Arenal” Market in Cuenca. Methodology: The study was conducted at the ceviche stalls of the “El Arenal” Market, both inside and around the place, where 30 samples were analyzed. The analysis was conducted using Compact Dry EC plates, which are specific for the growth of the bacteria studied. Results: Growth of 20.00% for Escherichia coli and 100% of Coliforms spp. were identified, compared, and reported correctly according to NTS No-071 MINSA/DIGESA-V-01 standard. Conclusion: It was identified that in the street-cart ceviches sold in the “El Arenal” market in the city of Cuenca, the presence of microorganisms Coliforms spp. and Escherichia coli was detected, with an extremely high percentage of Coliforms growth and development. General Area of Study: Biochemistry and Pharmacy. Specific area of study: Food Safety. Type of study: Original articles.

Introducción. El envejecimiento de la población mundial ha impulsado la búsqueda de estrategias para prolongar la salud y retrasar enfermedades relacionadas con la edad. La restricción calórica (RC), que reduce la ingesta calórica sin desnutrición, es la intervención dietética geroprotectora más estudiada. Sin embargo, la dificultad de mantenerla ha dirigido la investigación hacia fármacos que imiten sus efectos, conocidos como miméticos de la restricción calórica (MRC). Objetivo. Examinar el potencial de la RC y sus miméticos para retrasar el envejecimiento, evaluando su impacto en la salud y longevidad, y analizando sus bases científicas y posibles aplicaciones terapéuticas. Metodología. Revisión bibliográfica cualitativa basada en literatura sobre RC y MRC en relación con el envejecimiento. Se recopilaron datos de bases científicas como PubMed, LILACS y Cochrane, centrados en estudios clínicos de los últimos cinco años. Los hallazgos se sintetizan en una revisión narrativa. Resultados. La RC mostró mejoras significativas en salud y longevidad en modelos experimentales y humanos, reduciendo peso, niveles de insulina, temperatura corporal y estrés oxidativo. Promovió la autofagia mediante la inhibición de mTOR y activación de AMPK. Los MRC, como la metformina y rapamicina, también demostraron efectos antienvejecimiento al modular vías de detección de nutrientes y reducir el daño oxidativo, sugiriendo su potencial como alternativas a la RC. Conclusión. La RC y sus miméticos, como la rapamicina, mejoran la longevidad y la calidad muscular activando vías clave como AMPK y SIRT1. Aunque actúan de manera distinta, ambos promueven la autofagia y la protección antioxidante, lo que sugiere la necesidad de enfoques combinados para optimizar los efectos antienvejecimiento. Área de estudio general: Medicina. Área de estudio específica: Endocrinología. Tipo de estudio:  Revisión Bibliográfica.

Introduction: Ventilator-Associated Pneumonia (VAP) is the most prevalent nosocomial infection in Intensive Care Units (ICU). Good nursing practices are essential for its prevention. Objective: to conduct a systematic review of good nursing practices in the prevention of nosocomial infections associated with mechanical ventilation, and to evaluate the effectiveness of its implementation in third-level hospitals in Latin America. Methodology: a systematic review of studies published between 2019 and 2024 was conducted. The search process was conducted in the Scielo, LILACS and Redalyc databases and allowed the selection of 10 articles from 6 Latin American countries, whose samples were pediatric patients, adults, and older adults. Results: a package of interventions is applied in pediatric patients that emphasizes maintaining oral hygiene and raising the head of the bed. These interventions are also conceived for adult and older adult patients. In studies in the adult population, although full adherence to the implemented interventions is not achieved, a reduction in the risk of pneumonia and in the length of hospital stay is observed. Conclusions: the nursing intervention packages, which are applied in the ICUs of Latin America, in the care of patients with VAP, coincide in including as main nursing care actions, oral hygiene measures, elevation of the head of the bed and observance of protocols for endotracheal aspiration. General Area of Study: Medicine. Specific area of study: Intensive care unit. Type of study: Bibliography Review.

Introduction: The intensive care unit is characterized by being a hostile environment where the patient may experience negative feelings, therefore, strategies such as open doors have been established to humanize care, however, it is essential to take into account the perspective of nursing professionals, who are responsible for providing comprehensive care and including family members in the activities they perform. Objective: To know what has been published in the literature about the perspectives of nursing professionals on open-door ICU. Methodology: An integrative review was conducted, obtaining 456 studies from the databases consulted. Articles published in the last 10 years (2014-2024) in Spanish, Portuguese and English were considered as inclusion criteria. Results: Of the 17 articles selected, 7 categories were identified according to the perspectives of nursing professionals on open-door ICU: characterization, positive impact of humanized care, effect of the visit on staff, effect and beliefs of the visit on the patient, effect of the visit on the family, open-door ICU visitation policy, and requirements for the implementation of the visit. Conclusion: Nursing professionals perceive open-door ICU as a strategy that improves the quality of care and patient recovery but requires appropriate protocols. For some, it is a model of humanization and family participation, while others warn that the family's lack of knowledge and mistrust can generate conflicts in care. General Area of Study: Medicine. Specific area of study: Nursing. Type of study: Review article.

Introducción . La mastitis es una enfermedad importante en la lechería que afecta la productividad y el bienestar de las vacas. Se manifiesta en formas clínicas, subclínicas y crónicas, de ellas, la subclínica es la más común y difícil de detectar. En Ecuador, el 50% de la producción de leche se vende sin control de calidad, lo que supone un alto riesgo de residuos de antibióticos y altos recuentos de células somáticas. Además, Staphylococcus aureus , un patógeno resistente, es un factor clave en la mastitis subclínica y puede desarrollar resistencia a la meticilina debido al mal uso de antibióticos. Objetivo. El objetivo de esta revisión es describir los factores de riesgo durante el ordeño asociados a la mastitis bovina subclínica causada por Staphylococcus aureus resistente a la meticilina (SAMR). Metodología. Se realizó una búsqueda crítica para recopilar documentación sobre los factores de riesgo durante el ordeño relacionados con la mastitis bovina subclínica causada por MRSA. Se utilizaron un total de 45 artículos en inglés, español y portugués publicados entre 2019 y 2024. Resultados y Discusión. El principal factor de riesgo es la falta de higiene durante todo el proceso de ordeño. Esto, combinado con otros factores como manos sucias del ordeñador, método de ordeño, mal uso de toallas de secado y antisépticos, diferencias en la conformación de ubre y pezón, número de lactancias, período de transición y estrés, aumenta la incidencia y prevalencia de mastitis relacionadas con MRSA. Conclusión . El principal factor de riesgo es la falta de higiene en los pasos de ordeño, que, al combinarse con otros factores, facilita la entrada del patógeno causante de mastitis subclínica. Área de Estudio General. Medicina Veterinaria. Área de Estudio Específica. Ciencias Veterinarias. Tipo de Estudio. Artículo de Revisión.

Introduction. The autolytic attempt is caused by a psychological-emotional destabilization of the person, who deliberately generates violence on himself and commits the act through various means without resulting in death, but with serious injuries and has a high possibility of becoming a suicide. Objective. To analyze the risk factors and causes associated with self-inflicted attempts, as well as suicidal behaviors, through a systematic literature review. Methodology. For this study, a bibliographic review was developed in databases such as: SciELO, Regional Portal of the Virtual Health Library, Scopus, PubMed, ProQuest, Dialnet and Redalyc, using Google Scholar and search engines in the selection of articles. Results. The authors agree that self-harming behaviors are influenced by personal, interpersonal, socioeconomic, cultural, and psychiatric factors, present at all stages of life, but more common in adolescence and adulthood. Risk factors include age, marital status, family dysfunction, substance abuse, and socioeconomic problems, among others. Biological, psychiatric, and emotional causes, such as personality disorders and depression, stand out for their high lethality. Therefore, it is essential that nursing professionals are trained to recognize and address these risk factors, focusing on prevention and timely intervention. Conclusion. The identification of multifactorial risk factors for self-injurious behavior underscores the complexity and severity of the problem, especially in vulnerable populations. The training and preventive approach of Nursing professionals are essential for early detection and effective intervention, thus contributing to the reduction of suicide attempts and their tragic consequences. General area of study: Health. Specific area of study: Nursing. Type of study: Original article.

Introduction. Attempted suicide represents the third cause of death among people aged 15 to 29 and most suicides occur in low- and middle-income countries. In the face of suicidal behaviors and behaviors, health professionals must work to promote protective factors that provide security for the sustenance of life and focus on minimizing predisposing circumstances, which may at some time precipitate lethal behaviors. Objective. Characterize protective factors and nursing interventions in primary prevention, monitoring and control of suicidal behaviors or a potential act of suicide. Methodology. The study was developed as a descriptive bibliographic review, including scientific publications available in databases such as Scopus, PubMed, SciELO, ProQuest, the Regional Portal of the Virtual Health Library, Dialnet and Redalyc. The search strategy integrated the use of Google Scholar and the search engines of each database. Results. Protective factors such as social support, positive family dynamics, emotional regulation and self-esteem are essential to prevent suicidal behaviors. Nursing interventions should focus on enhancing these factors through preventive actions from primary care, addressing education, early identification of risks and creation of support networks. In addition, it is necessary to establish standardized protocols, strengthen continuous training and promote a humanized approach. The therapeutic relationship, based on empathy and trust, is key to identifying risks, promoting healthy behaviors, and reintegrating patients into their community environments. Conclusion. Protective factors are essential in suicide prevention, while the nursing role focuses on implementing preventive strategies, strengthening therapeutic bonds based on empathy and trust, and managing risks effectively. General area of study: Health. Specific area of study: Nursing. Type of study: Original article.

El aprendizaje de la probabilidad y la estadística en la educación superior representa un desafío significativo para los estudiantes de primer año, especialmente en carreras de formación matemática. Este estudio tuvo como propósito diagnosticar las dificultades conceptuales, procedimentales e interpretativas presentes en los estudiantes de la Licenciatura en Pedagogía de la Matemática de la Universidad de Guayaquil. Se utilizó un enfoque cuantitativo de tipo descriptivo, con apoyo cualitativo para el análisis de errores recurrentes en la resolución de problemas. La muestra estuvo conformada por 70 estudiantes de primer año, a quienes se aplicó una prueba diagnóstica de 20 ítems, una encuesta de percepción y el análisis de producciones escritas en clase. Los resultados simulados muestran que los errores procedimentales alcanzaron el mayor porcentaje promedio, seguidos de los conceptuales y los interpretativos. Entre las dificultades más frecuentes se identificaron la confusión entre independencia y exclusión mutua, la aplicación incorrecta de reglas de conteo y la interpretación deficiente de medidas de dispersión. Asimismo, los estudiantes reportaron niveles medio-altos de ansiedad estadística y una autoeficacia percibida relativamente baja, factores que inciden negativamente en su rendimiento y en la percepción de dificultad hacia la asignatura. Las conclusiones del estudio destacan la necesidad de implementar estrategias pedagógicas integrales que combinen la nivelación de contenidos básicos con intervenciones socioemocionales. De esta manera, se contribuirá a reducir la ansiedad, fortalecer la confianza y mejorar la comprensión de la probabilidad y la estadística en el primer año universitario. Estos hallazgos constituyen un insumo estratégico para la mejora curricular y la retención estudiantil en la Universidad de Guayaquil.

The present study focuses on analyzing the influence of Educaplay on the development of logical-mathematical skills in fifth-grade students of General Basic Education at Unidad Educativa Fray Bartolomé de las Casas, located in the parish of Salasaka, considering the importance of mathematical reasoning in academic learning. The objective was to design and implement interactive activities in Educaplay to enhance numerical skills and problem-solving abilities. A pre-experimental pretest–posttest design with a mixed approach (quantitative and qualitative) was applied. A set of tests validated by experts and activities (Froggy Jumps, test, video quiz, memory) were administered to 28 students under controlled conditions, along with classroom observations and teacher perspectives. The results revealed a statistically significant improvement: the mean score increased from 3.61 in the pretest to 8.18 in the posttest (t (28) = 39.686; p = 0.000), evidencing notable progress in the understanding of basic operations and problem-solving through logic. Educaplay fostered greater motivation and student participation, which directly contributed to the consolidation of learning. It was concluded that the implementation of Educaplay has proven to be an effective pedagogical strategy that strengthens the development of logical-mathematical competencies, becoming an innovative resource that enhances teaching, promotes independent learning, and generates new opportunities to raise educational quality.