RESUMEN
Quadricuspid aortic valve (QAV), a rare congenital cardiac anomaly, often presents with aortic regurgitation and can lead to significant cardiovascular complications. This case report describes a 55-year-old male with a history of subarachnoid hemorrhage who was incidentally found to have QAV with possible endocarditis. Transesophageal echocardiography revealed thickened leaflet tips on all four cusps and a mass on one leaflet, raising suspicion of endocarditis despite the absence of vegetation. The patient was treated with intravenous antibiotics for Gram-positive bacteremia, and follow-up imaging confirmed the QAV anomaly with moderate aortic regurgitation. This case highlights the challenges in diagnosing QAV, particularly in asymptomatic individuals, and underscores the need for comprehensive investigation, especially in those with a history of vascular events. It also emphasizes the importance of further research to clarify the long-term risks and optimal management strategies for individuals with QAV, including the potential for infective endocarditis.
RESUMEN
The number one cause of cancer in women worldwide is breast cancer. Over the last three decades, the use of traditional screen-film mammography has increased, but in recent years, digital mammography and 3D tomosynthesis have become standard procedures for breast cancer screening. With the advancement of technology, the interpretation of images using automated algorithms has become a subject of interest. Initially, computer-aided detection (CAD) was introduced; however, it did not show any long-term benefit in clinical practice. With recent advances in artificial intelligence (AI) methods, these technologies are showing promising potential for more accurate and efficient automated breast cancer detection and treatment. While AI promises widespread integration in breast cancer detection and treatment, challenges such as data quality, regulatory, ethical implications, and algorithm validation are crucial. Addressing these is essential for fully realizing AI's potential in enhancing early diagnosis and improving patient outcomes in breast cancer management. In this review article, we aim to provide an overview of the latest developments and applications of AI in breast cancer screening and treatment. While the existing literature primarily consists of retrospective studies, ongoing and future prospective research is poised to offer deeper insights. Artificial intelligence is on the verge of widespread integration into breast cancer detection and treatment, holding the potential to enhance early diagnosis and improve patient outcomes.
RESUMEN
ABSTRACT Aim To prepare a consensus document of the cariology contents and competences included in the curriculum for the dentistry degree at Argentine dental faculties/schools Materials and Method Planning the process in stages: Stage 1- Diagnosis of the situation (Google Form) and invitation to participate extended to the 20 academic units that offer dentistry degrees. Stage 2- Assessment process of Content (C) and Competences (I) agreements in the five domains: D1 Basic Sciences, D2 Risk and diagnosis of dental caries, D3 Decision-making for non-invasive treatments, D4 Decision-making for invasive treatment, and D5 Evidence-based cariology at community level. Stage 3- Consensus. Stages 2 and 3 were held in Workshop format in virtual mode (W) Results Stage 1- Of the total 20 Google forms sent to the AU, 13 responses were received: 7 from National Universities and 6 from Private Universities. All participants agreed to be part of the consensus. Stage 2- W: 20 representatives from 10 AU participated. It began with a contextualizing conference, after which the representatives were divided into 5 groups to assess the agreements of each D. Stage 3- The Cariology Curriculum document was organized into 5 Domains, and 23 C and 31 I of clinical application were defined for teaching cariology. The contents and competences for each domain were agreed upon. The final document was sent to all W participants for their approval and dissemination in each AU involved Conclusion Cariology contents were defined for dentistry students at Universities in the Argentine Republic.
RESUMEN Objetivo Elaborar un documento de consenso de los contenidos y competencias de cariología en el currículo para las facultades/escuelas de odontología argentinas, a nivel del grado Materiales y Método El proceso de creación se efectuó en etapas: 1- Diagnóstico de situación (Formulario electrónico) e invitación a participar a las 20 unidades académicas (UA) donde se imparte la carrera de odontología. 2- Proceso de valoración de acuerdos de Contenidos (C) y Competencias (I) en los cinco dominios (D): D1: Ciencias Básicas; D2: Riesgo y diagnóstico de caries dental; D3: Toma de decisiones tratamientos no invasivos; D4: Toma de decisiones para el tratamiento invasivo y D5: Cariología basada en la evidencia a nivel comunitario. 3- Etapa de consenso. Las etapas 2 y 3 se efectuaron en formato de Workshop en modalidad virtual (W) Resultados Etapa 1: Del total de 20 formularios enviados a las UA se recibieron 13 respuestas (65%), 7 (53,8%) de Universidades Nacionales y 6 (46,1%) de gestión Privada. El 100% de los participantes estuvieron de acuerdo en formar parte del consenso. Etapa 2: W: Participaron 20 representantes de 10 UA. El proceso se inició con una conferencia contextualizadora, posteriormente los representantes fueron divididos en 5 grupos para la valoración de acuerdos de cada D. Etapa 3: El documento de658. 658.l Currículo en Cariología se organizó en 5 Dominios. Se definieron 23 C y 31 I de aplicación clínica para la enseñanza de la Cariología. Se consensuaron los contenidos y las competencias para cada uno de los dominios. El documento final fue enviado a todos los participantes del W para su aprobación y difusión en cada una de las UA involucradas Conclusión En base al trabajo realizado se determinó un consenso de competencias y contenidos en cariología para estudiantes de grado de Odontología, de las Universidades de la República Argentina.
RESUMEN
Aim: To prepare a consensus document of the cariology contents and competences included in the curriculum for the dentistry degree at Argentine dental faculties/schools. Materials and Method: Planning the process in stages: Stage 1- Diagnosis of the situation (Google Form) and invitation to participate extended to the 20 academic units (AU) that offer dentistry degrees. Stage 2- Assessment process of Content (C) and Competences (I) agreements in the five domains: D1 Basic Sciences, D2 Risk and diagnosis of dental caries, D3 Decision-making for non-invasive treatments, D4 Decision-making for invasive treatment, and D5 Evidence-based cariology at community level. Stage 3- Consensus. Stages 2 and 3 were held in Workshop format in virtual mode (W). Results: Stage 1- Of the total 20 Google forms sent to the AU, 13 responses were received: 7 from National Universities and 6 from Private Universities. All participants agreed to be part of the consensus. Stage 2- W: 20 representatives from 10 AU participated. It began with a contextualizing conference, after which the representatives were divided into 5 groups to assess the agreements of each D. Stage 3- The Cariology Curriculum document was organized into 5 Domains, and 23 C and 31 I of clinical application were defined for teaching cariology. The contents and competences for each domain were agreed upon. The final document was sent to all W participants for their approval and dissemination in each AU involved. Conclusion: Cariology contents were defined for dentistry students at Universities in the Argentine Republic.
Objetivo: Elaborar un documento de consenso de los contenidos y competencias de cariología en el currículo para las facultades/escuelas de odontología argentinas, a nivel del grado. Materiales y Método: El proceso de creación se efectuó en etapas: 1- Diagnóstico de situación (Formulario electrónico) e invitación a participar a las 20 unidades académicas (UA) donde se imparte la carrera de odontología. 2- Proceso de valoración de acuerdos de Contenidos (C) y Competencias (I) en los cinco dominios (D): D1: Ciencias Básicas; D2: Riesgo y diagnóstico de caries dental; D3: Toma de decisiones tratamientos no invasivos; D4: Toma de decisiones para el tratamiento invasivo y D5: Cariología basada en la evidencia a nivel comunitario. 3- Etapa de consenso. Las etapas 2 y 3 se efectuaron en formato de Workshop en modalidad virtual (W). Resultados: Etapa 1: Del total de 20 formularios enviados a las UA se recibieron 13 respuestas (65%), 7 (53,8%) de Universidades Nacionales y 6 (46,1%) de gestión Privada. El 100% de los participantes estuvieron de acuerdo en formar parte del consenso. Etapa 2: W: Participaron 20 representantes de 10 UA. El proceso se inició con una conferencia contextualizadora, posteriormente los representantes fueron divididos en 5 grupos para la valoración de acuerdos de cada D. Etapa 3: El documento de658. 658.l Currículo en Cariología se organizó en 5 Dominios. Se definieron 23 C y 31 I de aplicación clínica para la enseñanza de la Cariología. Se consensuaron los contenidos y las competencias para cada uno de los dominios. El documento final fue enviado a todos los participantes del W para su aprobación y difusión en cada una de las UA involucradas. Conclusión: En base al trabajo realizado se determinó un consenso de competencias y contenidos en cariología para estudiantes de grado de Odontología, de las Universidades de la República Argentina.
Asunto(s)
Caries Dental , Humanos , Caries Dental/diagnóstico , Caries Dental/terapia , Argentina , Educación en Odontología , Curriculum , OdontologíaRESUMEN
Objectives To evaluate the predictive significance of tumour size in patients undergoing curative surgery for colorectal cancer (CRC). Methods All patients undergoing curative surgery for colon or rectum cancer performed by a single colorectal surgeon between January 2013 and January 2020 were considered eligible for inclusion. Linear and binary logistic regression analyses were modelled to assess whether colonic or rectal tumour size could predict R0 resection, specimen length, number of harvested and positive lymph nodes, lymphocytic infiltration, venous invasion, and overall survival. Results A total of 192 patients were eligible for inclusion. In patients with colon cancer, tumour size was the independent predictor of the number of harvested lymph nodes (P<0.001), the number of positive lymph nodes (P=0.001), and lymphocytic infiltration (P=0.009). However, it did not predict R0 resection (P=0.563), specimen length (P=0.111), specimen length >120 mm (P=0.186), >12 harvested lymph nodes (P=0.145), venous invasion (P=0.103), and five-year overall survival (P=0.543). In patients with rectal cancer, tumour size was the independent predictor of the number of harvested lymph nodes (P<0.001) and the number of positive lymph nodes (P<0.001). However, it did not predict R0 resection (P=0.108), specimen length (P=0.774), specimen length >120 mm (P=0.405), >12 harvested lymph nodes (P= 0.069), lymphocytic infiltration (P=0.912), venous invasion (P= 0.105), and five-year overall survival (P=0.413). Conclusions The results of the current study suggest that tumour size on its own may not have a significant predictive value in oncological or survival outcomes in patients undergoing curative surgery for colon or rectum cancer.
RESUMEN
BACKGROUND: The Democratic Republic of Congo (DRC) has a long history of conflict and ongoing local instability; the eastern provinces, including South Kivu, have been especially affected. Health systems and livelihoods have been undermined, contributing to massive inequities in access to health services and high rates of internal displacement. Asili, an innovative social enterprise program, aimed to provide essential community services and improve the health of under-five children in two South Kivu communities, Mudaka and Panzi, via provision of small-format, franchisable health clinics and clean water services. METHODS: We evaluated utilization and acceptance of Asili services in two study sites, Mudaka and Panzi. Data collected included questions on housing conditions, food security, and at follow up, Asili membership and use, satisfaction with services, and recommendations for improvement. Structured pre- and post-interviews with primary caregivers of families with under-five children were the primary source of data with additional community input collected through focus group discussions. RESULTS: At baseline, we enrolled 843 households in Mudaka and 890 in Panzi. Market segmentation analysis illuminated service usage patterns, showing Asili services were well received overall in both Mudaka and Panzi. Families reporting higher levels of proxy measures of socioeconomic status (SES), such as electricity, land ownership, and education, were more likely to use Asili services, findings that were further supported by focus group discussions among community members. CONCLUSIONS: Rebuilding health infrastructure in post-conflict settings, especially those that continue to be conflict-affected and very low SES, is a challenging prospect. Focus group results for this study highlighted the positive community response to Asili, while also underscoring challenges related to cost of services. Programs may need, in particular, to have different levels of costs for different SES groups. Additionally, longer follow-up periods and increased stability may be needed to assess the potential of social enterprise interventions such as Asili to improve health outcomes, especially in children. TRIAL REGISTRATION: Institutional Review Board approval for this study was obtained at Stanford University (IRB 35216) and the University of Kinshasa, DRC. Further, this study has been registered on Clinicaltrials.gov (record NCT03536286), retrospectively registered as of 4/23/2018.
RESUMEN
BACKGROUND: Infectious disease risk is driven by three interrelated components: exposure, hazard, and vulnerability. For schistosomiasis, exposure occurs through contact with water, which is often tied to daily activities. Water contact, however, does not imply risk unless the environmental hazard of snails and parasites is also present in the water. By increasing reliance on hazardous activities and environments, socio-economic vulnerability can hinder reductions in exposure to a hazard. We aimed to quantify the contributions of exposure, hazard, and vulnerability to the presence and intensity of Schistosoma haematobium re-infection. METHODOLOGY/PRINCIPAL FINDINGS: In 13 villages along the Senegal River, we collected parasitological data from 821 school-aged children, survey data from 411 households where those children resided, and ecological data from all 24 village water access sites. We fit mixed-effects logistic and negative binomial regressions with indices of exposure, hazard, and vulnerability as explanatory variables of Schistosoma haematobium presence and intensity, respectively, controlling for demographic variables. Using multi-model inference to calculate the relative importance of each component of risk, we found that hazard (Æ©wi = 0.95) was the most important component of S. haematobium presence, followed by vulnerability (Æ©wi = 0.91). Exposure (Æ©wi = 1.00) was the most important component of S. haematobium intensity, followed by hazard (Æ©wi = 0.77). Model averaging quantified associations between each infection outcome and indices of exposure, hazard, and vulnerability, revealing a positive association between hazard and infection presence (OR = 1.49, 95% CI 1.12, 1.97), and a positive association between exposure and infection intensity (RR 2.59-3.86, depending on the category; all 95% CIs above 1). CONCLUSIONS/SIGNIFICANCE: Our findings underscore the linkages between social (exposure and vulnerability) and environmental (hazard) processes in the acquisition and accumulation of S. haematobium infection. This approach highlights the importance of implementing both social and environmental interventions to complement mass drug administration.
Asunto(s)
Reinfección/parasitología , Schistosoma haematobium/fisiología , Esquistosomiasis Urinaria/parasitología , Vulnerabilidad Social , Adolescente , Animales , Niño , Preescolar , Estudios Transversales , Femenino , Humanos , Estudios Longitudinales , Masculino , Reinfección/epidemiología , Reinfección/psicología , Población Rural/estadística & datos numéricos , Schistosoma haematobium/genética , Schistosoma haematobium/aislamiento & purificación , Esquistosomiasis Urinaria/epidemiología , Esquistosomiasis Urinaria/psicología , Senegal/epidemiología , Poblaciones Vulnerables/estadística & datos numéricos , Agua/parasitologíaRESUMEN
BACKGROUND: Maternal mortality ratio is an important figure reflecting the strength of a healthcare system. Traditionally the causes of maternal death are described by the three-delay model. This study was conducted to evaluate the causes and determinants of maternal mortality at a secondary level hospital in a rural area of northern Pakistan over a period of 5 years (2013-17). METHODS: This cross-sectional study was conducted in 2018 on hospital data for the previous 5 years (2013-17) regarding mortality in the Gynaecology department of District Headquarter hospital, Timergara. Cases of maternal death were identified and secondary data was retrieved from the hospital records and patient case sheets. RESULTS: Forty-seven cases of maternal death were identified over a period of 5 years and the average maternal mortality ratio calculated to be 110/100,000 live births. Haemorrhage was the commonest cause (36%) followed by uterine rupture (34%) and hypertensive disorders (21%). Most of the cases seen were in uneducated women belonging to the poor socioeconomic stratum (85%) aged 20 to 35 years (55%). 51% of the women were multigravidae coming from within a distance of 25-50 km from the hospital (53%) Majority of the dying mothers (57%) had no antenatal care and were seen arriving at the hospital in the evening shifts (48%). CONCLUSION: Causes and determinants of maternal death are complex and inter sectorial. Poverty, lack of education, antenatal care, family spacing and prompt access to emergency care contribute to maternal death.
Asunto(s)
Mortalidad Materna , Adulto , Estudios Transversales , Femenino , Hospitales de Distrito , Humanos , Pakistán/epidemiología , Embarazo , Atención Prenatal/estadística & datos numéricos , Factores Socioeconómicos , Adulto JovenRESUMEN
Human schistosomiasis is a snail-borne parasitic disease affecting more than 200 million people worldwide. Direct contact with snail-infested freshwater is the primary route of exposure. Water management infrastructure, including dams and irrigation schemes, expands snail habitat, increasing the risk across the landscape. The Diama Dam, built on the lower basin of the Senegal River to prevent saltwater intrusion and promote year-round agriculture in the drought-prone Sahel, is a paradigmatic case. Since dam completion in 1986, the rural population-whose livelihoods rely mostly on agriculture-has suffered high rates of schistosome infection. The region remains one of the most hyperendemic regions in the world. Because of the convergence between livelihoods and environmental conditions favorable to transmission, schistosomiasis is considered an illustrative case of a disease-driven poverty trap (DDPT). The literature to date on the topic, however, remains largely theoretical. With qualitative data generated from 12 focus groups in four villages, we conducted team-based theme analysis to investigate how perception of schistosomiasis risk and reported preventive behaviors may suggest the presence of a DDPT. Our analysis reveals three key findings: 1) rural villagers understand schistosomiasis risk (i.e., where and when infections occur), 2) accordingly, they adopt some preventive behaviors, but ultimately, 3) exposure persists, because of circumstances characteristic of rural livelihoods. These findings highlight the capacity of local populations to participate actively in schistosomiasis control programs and the limitations of widespread drug treatment campaigns. Interventions that target the environmental reservoir of disease may provide opportunities to reduce exposure while maintaining resource-dependent livelihoods.
Asunto(s)
Schistosoma/fisiología , Esquistosomiasis/prevención & control , Caracoles/parasitología , Adolescente , Adulto , Anciano , Agricultura , Animales , Niño , Ecosistema , Femenino , Humanos , Masculino , Persona de Mediana Edad , Riesgo , Ríos/parasitología , Esquistosomiasis/epidemiología , Esquistosomiasis/parasitología , Senegal/epidemiología , Agua/parasitología , Adulto JovenRESUMEN
Mycophenolate mofetil (MMF) is used extensively for the induction therapy of lupus nephritis (LN) and has even outpaced intravenous (i.v.) cyclophosphamide (CyP) as the initial choice of therapy. There are no studies comparing the response of MMF with standard dose i.v. CyP in Indian patients with LN. We conducted a 24-week prospective, randomized, open-label trial comparing oral MMF with monthly i.v. CyP as induction therapy for active biopsy proven Class III and IV LN. The primary end-point was response to treatment at 24 weeks, and the secondary end-points were complete remission, Systemic Lupus Erythematosus Disease Activity Index scores (SLEDAI) and adverse reactions. Of the 40 patients, 17 were randomized to the MMF group and 23 to the i.v. CyP group. Complete remission was seen in nine (52.94%) patients in the MMF group and 11 (47.82%) in the i.v. CyP group. Partial remission was seen in six (35.30%) in the MMF group and nine (39.13%) in the i.v. CyP group. At six months, the cumulative probability of response was not statistically significant between the two groups (P = 1.000). MMF is comparable to i.v. CyP in the management of LN in Indian patients having an equal safety profile. The dose of MMF required was lower than the conventional doses used in other studies suggesting genetic or environmental factors in the Indian population influencing the metabolism of MMF, which requires further evaluation. The cost of MMF is a limiting factor in its use. The use of i.v. CyP is favorable as the monthly doses ensure compliance and is also cost-effective.
Asunto(s)
Ciclofosfamida/administración & dosificación , Inmunosupresores/administración & dosificación , Riñón/efectos de los fármacos , Nefritis Lúpica/tratamiento farmacológico , Ácido Micofenólico/administración & dosificación , Administración Intravenosa , Administración Oral , Adolescente , Adulto , Biopsia , Análisis Costo-Beneficio , Ciclofosfamida/efectos adversos , Ciclofosfamida/economía , Costos de los Medicamentos , Femenino , Tasa de Filtración Glomerular/efectos de los fármacos , Humanos , Inmunosupresores/efectos adversos , Inmunosupresores/economía , India , Riñón/inmunología , Riñón/patología , Riñón/fisiopatología , Nefritis Lúpica/diagnóstico , Nefritis Lúpica/inmunología , Nefritis Lúpica/fisiopatología , Masculino , Ácido Micofenólico/efectos adversos , Ácido Micofenólico/economía , Estudios Prospectivos , Quimioterapia por Pulso , Recuperación de la Función , Inducción de Remisión , Factores de Tiempo , Resultado del Tratamiento , Adulto JovenRESUMEN
Since Zika virus (ZIKV) was detected in Brazil in 2015, it has spread explosively across the Americas and has been linked to increased incidence of microcephaly and Guillain-Barré syndrome (GBS). In one year, it has infected over 500,000 people (suspected and confirmed cases) in 40 countries and territories in the Americas. Along with recent epidemics of dengue (DENV) and chikungunya virus (CHIKV), which are also transmitted by Aedes aegypti and Ae. albopictus mosquitoes, the emergence of ZIKV suggests an ongoing intensification of environmental and social factors that have given rise to a new regime of arbovirus transmission. Here, we review hypotheses and preliminary evidence for the environmental and social changes that have fueled the ZIKV epidemic. Potential drivers include climate variation, land use change, poverty, and human movement. Beyond the direct impact of microcephaly and GBS, the ZIKV epidemic will likely have social ramifications for women's health and economic consequences for tourism and beyond.