Modelling the demographic history of human North African genomes points to a recent soft split divergence between populations.

BACKGROUND: North African human populations present a complex demographic scenario due to the presence of an autochthonous genetic component and population substructure, plus extensive gene flow from the Middle East, Europe, and sub-Saharan Africa. RESULTS: We conducted a comprehensive analysis of 364 genomes to construct detailed demographic models for the North African region, encompassing its two primary ethnic groups, the Arab and Amazigh populations. This was achieved through an Approximate Bayesian Computation with Deep Learning (ABC-DL) framework and a novel algorithm called Genetic Programming for Population Genetics (GP4PG). This innovative approach enabled us to effectively model intricate demographic scenarios, utilizing a subset of 16 whole genomes at > 30X coverage. The demographic model suggested by GP4PG exhibited a closer alignment with the observed data compared to the ABC-DL model. Both point to a back-to-Africa origin of North African individuals and a close relationship with Eurasian populations. Results support different origins for Amazigh and Arab populations, with Amazigh populations originating back in Epipaleolithic times, while GP4PG supports Arabization as the main source of Middle Eastern ancestry. The GP4PG model includes population substructure in surrounding populations (sub-Saharan Africa and Middle East) with continuous decaying gene flow after population split. Contrary to ABC-DL, the best GP4PG model does not require pulses of admixture from surrounding populations into North Africa pointing to soft splits as drivers of divergence in North Africa. CONCLUSIONS: We have built a demographic model on North Africa that points to a back-to-Africa expansion and a differential origin between Arab and Amazigh populations.

Towards a survival risk prediction model for metastatic NSCLC patients on durvalumab using whole-lung CT radiomics.

Background: Existing criteria for predicting patient survival from immunotherapy are primarily centered on the PD-L1 status of patients. We tested the hypothesis that noninvasively captured baseline whole-lung radiomics features from CT images, baseline clinical parameters, combined with advanced machine learning approaches, can help to build models of patient survival that compare favorably with PD-L1 status for predicting 'less-than-median-survival risk' in the metastatic NSCLC setting for patients on durvalumab. With a total of 1062 patients, inclusive of model training and validation, this is the largest such study yet. Methods: To ensure a sufficient sample size, we combined data from treatment arms of three metastatic NSCLC studies. About 80% of this data was used for model training, and the remainder was held-out for validation. We first trained two independent models; Model-C trained to predict survival using clinical data; and Model-R trained to predict survival using whole-lung radiomics features. Finally, we created Model-C+R which leveraged both clinical and radiomics features. Results: The classification accuracy (for median survival) of Model-C, Model-R, and Model-C+R was 63%, 55%, and 68% respectively. Sensitivity analysis of survival prediction across different training and validation cohorts showed concordance indices ([95 percentile]) of 0.64 ([0.63, 0.65]), 0.60 ([0.59, 0.60]), and 0.66 ([0.65,0.67]), respectively. We additionally evaluated generalization of these models on a comparable cohort of 144 patients from an independent study, demonstrating classification accuracies of 65%, 62%, and 72% respectively. Conclusion: Machine Learning models combining baseline whole-lung CT radiomic and clinical features may be a useful tool for patient selection in immunotherapy. Further validation through prospective studies is needed.

Impact of an anemia diagnostic management team on follow-up test ordering by primary care providers.

BACKGROUND: Anemia is a complex condition with diverse causes and poses diagnostic challenges amid the expanding landscape of laboratory testing. Implementation of an anemia diagnostic management team (DMT) can aid health care providers in navigating this complexity. METHODS: This quasi-experimental study assessed the impact of an anemia DMT on laboratory test ordering by primary care providers for anemic patients. This study included adult patients (≥18 years) with anemia (hemoglobin <12.0 g/dL for nonpregnant women, hemoglobin <13.0 g/dL for men) presenting to a family medicine clinic. Cases reviewed by the DMT (n = 100) were compared with a control group (n = 95). RESULTS: The DMT recommended additional testing for 76 patients. Significantly more patients in the DMT group underwent follow-up tests compared with controls (59% vs 34%; P < .001). Moreover, the DMT group underwent a higher mean number of tests per patient (1.70 ± 2.2 vs 0.95 ± 1.9; P = .01). CONCLUSION: Implementation of an anemia DMT influenced follow-up testing patterns in anemic patients, potentially enhancing diagnostic thoroughness and patient care.

Clinical Prediction Models for Prognosis of Colorectal Liver Metastases: A Comprehensive Review of Regression-Based and Machine Learning Models.

Colorectal liver metastasis (CRLM) is a disease entity that warrants special attention due to its high frequency and potential curability. Identification of "high-risk" patients is increasingly popular for risk stratification and personalization of the management pathway. Traditional regression-based methods have been used to derive prediction models for these patients, and lately, focus has shifted to artificial intelligence-based models, with employment of variable supervised and unsupervised techniques. Multiple endpoints, like overall survival (OS), disease-free survival (DFS) and development or recurrence of postoperative complications have all been used as outcomes in these studies. This review provides an extensive overview of available clinical prediction models focusing on the prognosis of CRLM and highlights the different predictor types incorporated in each model. An overview of the modelling strategies and the outcomes chosen is provided. Specific patient and treatment characteristics included in the models are discussed in detail. Model development and validation methods are presented and critically appraised, and model performance is assessed within a proposed framework.

Childhood-Onset Non-Infectious Uveitis in the "Biologic Era". Results From Spanish Multicenter Multidisciplinary Real-World Clinical Settings.

OBJECTIVE: To characterize and describe clinical experience with childhood-onset non-infectious uveitis. STUDY DESIGN: A multicenter retrospective multidisciplinary national web-based registry of 507 patients from 21 hospitals was analyzed. Cases were grouped as immune disease-associated (IMDu), idiopathic (IDIu) or ophthalmologically distinct. Characteristics of juvenile idiopathic arthritis-associated (non-HLA-B27-related) uveitis (JIAu), IDIu, and pars planitis (PP) were compared. RESULTS: IMDu (62.3%) and JIAu (51.9%) predominated in young females; and IDIu (22.7%) and PP (13.6%) in older children, without sex imbalance. Ocular complications occurred in 45.3% of cases (posterior synechiae [28%], cataracts [16%], band keratopathy [14%], ocular hypertension [11%] and cystoid macular edema [10%]) and were associated with synthetic (86%) and biologic (65%) disease-modifying antirheumatic drug (DMARD) use. Subgroups were significantly associated (p < 0.05) with different characteristics. JIAu was typically anterior (98%), insidious (75%), in ANA-positive (69%), young females (82%) with fewer complications (31%), better visual outcomes, and later use of uveitis-effective biologics. In contrast, IDIu was characteristically anterior (87%) or panuveitic (12.1%), with acute onset (60%) and more complications at onset (59%: synechiae [31%] and cataracts [9.6%]) and less DMARD use, while PP is intermediate, and was mostly bilateral (72.5%), persistent (86.5%) and chronic (86.8%), with more complications (70%; mainly posterior segment and cataracts at last visit), impaired visual acuity at onset, and greater systemic (81.2%), subtenon (29.1%) and intravitreal (10.1%) steroid use. CONCLUSION: Prognosis of childhood uveitis has improved in the "biologic era," particularly in JIAu. Early referral and DMARD therapy may reduce steroid use and improve outcomes, especially in PP and IDIu.

Work Productivity and Activities of Daily Living in Working Patients with Uveitis.

PURPOSE: To assess self-reported impairment of work productivity and activities of daily living and the indirect costs of absenteeism in a sample of working patients with uveitis and to examine their association with sociodemographic, occupational, and clinical variables. METHODS: We conducted a cross-sectional, cross-association study. Participants completed the self-administered Work Productivity and Activity Impairment Questionnaire uveitis 2.0 to assess absenteeism, presenteeism, overall work impairment, and impairment in activities of daily living. Clinical data were collected from the patients' medical records or instruments used to evaluate clinical parameters in practice. Indirect costs of absenteeism were assessed by the "lost wages method." Two clinical groups were established for this study. Bivariate and multivariate analyses were performed to assess the associations between variables. RESULTS: The final sample comprised 60 participants. Factors significantly associated with increased overall work impairment in the multivariate linear regression analysis were active uveitis (coefficient, 31.5; 95% confidence interval [CI], 16.1 to 46.9; p < 0.001) and presence of ocular comorbidities (coefficient for absence, -16.4; 95% CI, -31.1 to -1.8; p = 0.03). Factors significantly associated with increased impairment in activities of daily living were active uveitis (coefficient, 32.1; 95% CI, 18.2 to 46.0; p < 0.001), presence of ocular comorbidities (coefficient for absence, -23.5; 95% CI, -36.1 to -11.0; p < 0.001), and absence of nonocular comorbidities (coefficient 16.1; 95% CI, 3.9 to 28.3; p = 0.01). CONCLUSIONS: Active uveitis and ocular comorbidities are significantly associated with increased overall work impairment and impairment in activities of daily living in working patients with uveitis.

SLESIS-R: an improved score for prediction of serious infection in patients with systemic lupus erythematosus based on the RELESSER prospective cohort.

OBJECTIVE: To develop an improved score for prediction of severe infection in patients with systemic lupus erythematosus (SLE), namely, the SLE Severe Infection Score-Revised (SLESIS-R) and to validate it in a large multicentre lupus cohort. METHODS: We used data from the prospective phase of RELESSER (RELESSER-PROS), the SLE register of the Spanish Society of Rheumatology. A multivariable logistic model was constructed taking into account the variables already forming the SLESIS score, plus all other potential predictors identified in a literature review. Performance was analysed using the C-statistic and the area under the receiver operating characteristic curve (AUROC). Internal validation was carried out using a 100-sample bootstrapping procedure. ORs were transformed into score items, and the AUROC was used to determine performance. RESULTS: A total of 1459 patients who had completed 1 year of follow-up were included in the development cohort (mean age, 49±13 years; 90% women). Twenty-five (1.7%) had experienced ≥1 severe infection. According to the adjusted multivariate model, severe infection could be predicted from four variables: age (years) ≥60, previous SLE-related hospitalisation, previous serious infection and glucocorticoid dose. A score was built from the best model, taking values from 0 to 17. The AUROC was 0.861 (0.777-0.946). The cut-off chosen was ≥6, which exhibited an accuracy of 85.9% and a positive likelihood ratio of 5.48. CONCLUSIONS: SLESIS-R is an accurate and feasible instrument for predicting infections in patients with SLE. SLESIS-R could help to make informed decisions on the use of immunosuppressants and the implementation of preventive measures.

IgG4-related disease and B-cell malignancy due to an IKZF1 gain-of-function variant.

BACKGROUND: Monoallelic loss-of-function IKZF1 (IKAROS) variants cause B-cell deficiency or combined immunodeficiency, whereas monoallelic gain-of-function (GOF) IKZF1 variants have recently been reported to cause hypergammaglobulinemia, abnormal plasma cell differentiation, autoimmune and allergic manifestations, and infections. OBJECTIVE: We studied 7 relatives with autoimmune/inflammatory and lymphoproliferative manifestations to identify the immunologic disturbances and the genetic cause of their disease. METHODS: We analyzed biopsy results and performed whole-exome sequencing and immunologic studies. RESULTS: Disease onset occurred at a mean age of 25.2 years (range, 10-64, years). Six patients suffered from autoimmune/inflammatory diseases, 4 had confirmed IG4-related disease (IgG4-RD), and 5 developed B-cell malignancies: lymphoma in 4 and multiple myeloma in the remaining patient. Patients without immunosuppression were not particularly prone to infectious diseases. Three patients suffered from life-threatening coronavirus disease 2019 pneumonia, of whom 1 had autoantibodies neutralizing IFN-α. The recently described IKZF1 GOF p.R183H variant was found in the 5 affected relatives tested and in a 6-year-old asymptomatic girl. Immunologic analysis revealed hypergammaglobulinemia and high frequencies of certain lymphocyte subsets (exhausted B cells, effector memory CD4 T cells, effector memory CD4 T cells that have regained surface expression of CD45RA and CD28-CD57+ CD4+ and CD8+ T cells, TH2, and Tfh2 cells) attesting to immune dysregulation. Partial clinical responses to rituximab and corticosteroids were observed, and treatment with lenalidomide, which promotes IKAROS degradation, was initiated in 3 patients. CONCLUSIONS: Heterozygosity for GOF IKZF1 variants underlies autoimmunity/inflammatory diseases, IgG4-RD, and B-cell malignancies, the onset of which may occur in adulthood. Clinical and immunologic data are similar to those for patients with unexplained IgG4-RD. Patients may therefore benefit from treatments inhibiting pathways displaying IKAROS-mediated overactivity.

Genomic epidemiology of the primary methicillin-resistant Staphylococcus aureus clones causing invasive infections in Paraguayan children.

Methicillin-resistant Staphylococcus aureus (MRSA) is one of the major human pathogens. It could carry numerous resistance genes and virulence factors in its genome, some of which are related to the severity of the infection. An observational, descriptive, cross-sectional study was designed to molecularly analyze MRSA isolates that cause invasive infections in Paraguayan children from 2009 to 2013. Ten representative MRSA isolates of the main clonal complex identified were analyzed with short-read paired-end sequencing and assessed for the virulome, resistome, and phylogenetic relationships. All the genetically linked MRSA isolates were recovered from diverse clinical sources, patients, and hospitals at broad gap periods. The pan-genomic analysis of these clones revealed three major and different clonal complexes (CC30, CC5, and CC8), each composed of clones closely related to each other. The CC30 genomes prove to be a successful clone, strongly installed and disseminated throughout our country, and closely related to other CC30 public genomes from the region and the world. The CC5 shows the highest genetic variability, and the CC8 carried the complete arginine catabolic mobile element (ACME), closely related to the USA300-NAE-ACME+, identified as the major cause of CA-MRSA infections in North America. Multiple virulence and resistance genes were identified for the first time in this study, highlighting the complex virulence profiles of MRSA circulating in the country. This study opens a wide range of new possibilities for future projects and trials to improve the existing knowledge on the epidemiology of MRSA circulating in Paraguay. IMPORTANCE: The increasing prevalence of methicillin-resistant Staphylococcus aureus (MRSA) is a public health problem worldwide. The most frequent MRSA clones identified in Paraguay in previous studies (including community and hospital acquired) were the Pediatric (CC5-ST5-IV), the Cordobes-Chilean (CC5-ST5-I), the SouthWest Pacific (CC30-ST30-IV), and the Brazilian (CC8-ST239-III) clones. In this study, the pan-genomic analysis of the most representative MRSA clones circulating in invasive infection in Paraguayan children over the years 2009-2013, such as the CC30-ST30-IV, CC5-ST5-IV, and CC8-ST8-IV, was carried out to evaluate their genetic diversity, their repertoire of virulence factors, and antimicrobial resistance determinants. This revealed multiple virulence and resistance genes, highlighting the complex virulence profiles of MRSA circulating in Paraguay. Our work is the first genomic study of MRSA in Paraguay and will contribute to the development of genomic surveillance in the region and our understanding of the global epidemiology of this pathogen.

Preoperative Risk Factors and Postoperative Complications of COVID-Positive Children Requiring Urgent or Emergent Surgical Care.

BACKGROUND: Preoperative COVID-19 testing protocols were widely implemented for children requiring surgery, leading to increased resource consumption and many delayed or canceled operations or procedures. This study using multi-center data investigated the relationship between preoperative risk factors, COVID-positivity, and postoperative outcomes among children undergoing common urgent and emergent procedures. METHODS: Children (<18 years) who underwent common urgent and emergent procedures were identified in the 2021 National Surgical Quality Improvement Program Pediatric database. The outcomes of COVID-positive and non-COVID-positive (negative or untested) children were compared using simple and multivariable regression models. RESULTS: Among 40,628 children undergoing gastrointestinal surgery (appendectomy, cholecystectomy), long bone fracture fixation, cerebrospinal fluid shunt procedures, gonadal procedures (testicular detorsion, ovarian procedures), and pyloromyotomy, 576 (1.4%) were COVID-positive. COVID-positive children had higher American Society of Anesthesiologists scores (p ≤ 0.001) and more frequently had preoperative sepsis (p ≤ 0.016) compared to non-COVID-positive children; however, other preoperative risk factors, including comorbidities, were largely similar. COVID-positive children had a longer length of stay than non-COVID-positive children (median 1.0 [IQR 0.0-2.0] vs. 1.0 [IQR 0.0-1.0], p < 0.001). However, there were no associations between COVID-19 positivity and overall complications, pulmonary complications, infectious complications, or readmissions. CONCLUSIONS: Despite increased preoperative risk factors, COVID-positive children did not have an increased risk of postoperative complications after common urgent and emergent procedures. However, length of stay was greater for COVID-positive children, likely due to delays in surgery related to COVID-19 protocols. These findings may be applicable to future preoperative testing and surgical timing guidelines related to respiratory viral illnesses in children. LEVEL OF EVIDENCE: III.

Mentalización, estilo de apego y afrontamiento al estrés en una muestra poblacional de la Costa Atlántica colombiana durante la cuarentena por el COvID-19 / Mentalizing, Attachment Style, and Coping During the COvID-19 Quarantine in Colombia / Mentalização, estilo de apego e enfrentamento do estresse em uma amostra populacional da Costa Atlântica colombiana durante a quarentena causada pelo COvID-19

El objetivo de este artículo es describir la relación de la mentalización y el estilo de apego sobre el afrontamiento del estrés durante la cuarentena por COVID-19 en Colombia. En el estudio participaron 253 personas, de las cuales 68 fueron hombres, 184 mujeres y 1 se identificó como otro. Los participantes se eligieron mediante un muestreo no probabilístico de tipo bola de nieve y el cuestionario de datos se distribuyó por redes sociales. Como instrumentos de investigación se utilizó el Cuestionario de Afrontamiento frente al Estrés (CAE) ­la forma revisada de la EEC-R­, medida de autoinforme diseñada para evaluar siete estilos básicos de afrontamiento; el Cuestionario de Experiencias en Relaciones Cercanas-revisado (ECR) y el Cuestionario de Función Reflexiva (RfQ-8). En los resultados se encontraron correlaciones entre el estilo de apego y la mentalización con el estilo de afrontamiento frente al estrés durante el aislamiento por la pandemia de COVID-19. Se evidenció que un estilo de apego seguro facilita estilos de afrontamiento más adaptativos, a diferencia de los estilos de apego ansioso y evitativo que están más relacionados con estilos de afrontamiento como la auto focalización negativa y la evitación.

This study aimed to describe the relationship between mentalization and attachment style in coping with stress during the COVID-19 quarantine in Colombia. In this study 253 people participated of which 68 were men, 184 were women and 1 was defined as other; the partici- pants were chosen through a non-probabilistic snowball sampling where the questionnaire was distributed in social networks. As instruments, the CAE is the revised form of the EEC-R; a self-report measure designed to assess seven basic coping styles, the Experiences in Close Relationships-Revised (ECR) questionnaire and the Reflective Function Questionnaire (RfQ-8) were used. The results found correlations between attachment style and mentalization with coping style in the face of stress during the COVID-19 pandemic isolation. Finding that a secure attachment style facilitates more adaptive coping styles, as opposed to anxious and avoidant attachment styles that are more related to coping styles such as negative self-focus and avoidance.

O objetivo do estudo foi descrever a relação entre mentalização e estilo de apego no enfrentamento do estresse durante a quarentena da COVID-19 na Colôm- bia. Neste estudo, participaram 253 pessoas, das quais 68 eram homens, 184 eram mulheres e 1 definido como outro; os participantes foram escolhidos por meio de uma amostragem não probabilística em bola de neve onde o questionário foi distribuído nas redes sociais. Como instrumentos foram usados, o CAE, que é a forma revisada do EEC-R; medida de autorrelato projetada para avaliar sete estilos básicos de enfren- tamento, o questionário Experiencias em Relaciona- mentos Próximos-revisado (ECR) e o Questionário de Funcionamento Reflexivo (RfQ-8). Nos resultados, foram encontradas correlações entre o estilo de apego e a mentalização com o estilo de enfrentamento do estresse durante o isolamento devido à pandemia de COVID-19. Descobriu-se que um estilo de apego seguro facilita estilos de enfrentamento mais adaptativos, ao contrário dos estilos de apego ansioso e evitativo, que estão mais relacionados a estilos de enfrentamento, como autofoco negativo e evitação.

Successful outcomes of surgery procedures in patient with Glanzmann´s Thrombasthenia

We report a 35-year-old female patient with Glanzmann's thrombasthenia (GT) and severe anemia due to abnormal uterine bleeding secondary to uterine myomatosis. She required several admissions of red blood cells and platelet transfusions. An elective subtotal hysterectomy with salpingo-oophorectomy was proposed and recombinant factor VII was required. Surgical and postoperative outcomes were successful, without surgical complications, bleeding, or hemogram alterations. 4 years later, she required tooth extraction because of periodontal disease and pulp necrosis. In Peru, reports of GT patients requiring major and minor surgical procedures are lacking, given the low disease prevalence and the difficulties related to surgery. The report of these successful cases becomes relevant to continue improving GT management.

Presentamos el caso de una paciente de 35 años con trombastenia de Glanzmann (GT) y anemia severa por sangrado uterino anormal secundario a miomatosis uterina. Requirió varias admisiones de transfusiones de glóbulos rojos y plaquetas. Se propuso histerectomía subtotal electiva con salpingo-ooforectomía y se requirió factor VII recombinante. Los resultados quirúrgicos y postoperatorios fueron exitosos, sin complicaciones quirúrgicas, sangrado ni alteraciones del hemograma. 4 años después, requirió extracción dental por enfermedad periodontal y necrosis pulpar. En Perú faltan reportes de pacientes con GT que requieran procedimientos quirúrgicos mayores y menores, dada la baja prevalencia de la enfermedad y las dificultades relacionadas con la cirugía. El reporte de estos casos de éxito cobra relevancia para seguir mejorando la gestión de GT

Ventilación mecánica en pacientes con síndrome de dificultad respiratoria aguda por la Covid-19 en una unidad de cuidados intensivos de Lima, Perú / Mechanical ventilation in patients with acute respiratory distress syndrome due to Covid-19 in an intensive care unit in Lima, Peru

RESUMEN Objetivos : Describir las características clínico-epidemiológicas, mecánica ventilatoria y determinar la mortalidad global y la relacionada a parámetros ventilatorios de los pacientes con síndrome de dificultad respiratoria aguda (SDRA) por la COVID-19 en una unidad de cuidados intensivos de Lima - Perú. Material y métodos : Estudio de cohorte retrospectivo. Se incluyeron 133 pacientes con SDRA por la COVID-19 que ingresaron a ventilación mecánica (VM) en la unidad de cuidados intensivos (UCI) del Hospital Cayetano Heredia desde marzo a noviembre de 2020. Resultados : El 75% de pacientes fueron de sexo masculino, 68% no tuvo comorbilidad, 97% tuvo el diagnóstico de SDRA severo y 82% recibió ventilación mecánica en decúbito prono extendido por 72 horas. La mortalidad global fue 38%, en el análisis bivariado entre la mecánica ventilatoria y mortalidad se evidenció que los pacientes vivos tuvieron menor presión plateau 27±1 cmH20 versus 30±1 cmH20 (p=0,007), menor driving pressure 15±4 versus 17±5 (p=0,008), mayor compliance pulmonar estática 32±1 versus 28±1 ml/cmH20 (p=0,01) y mayor relación Pa02/Fi02 194±86 mm Hg versus 157±66 mm Hg (p=0,01) que los pacientes fallecidos. Los pacientes en ventilación mecánica en decúbito prono extendido de 72 horas por ciclo tuvieron sobrevida significativamente mayor (p=0,03). Conclusión : El 97% de pacientes tuvo SDRA severo por la Covid-19; la mortalidad global fue 38%, los pacientes vivos tuvieron menor presión plateau y menor driving pressure y los que recibieron ventilación en decúbito prono extendido de 72 horas por ciclo tuvieron sobrevida significativamente mayor.

SUMMARY Objectives: To describe clinical, epidemiological, mechanical ventilation (MV) parameters and to determine overall mortality and that related to MV parameters in patients with acute respiratory distress syndrome (ARDS) in an ICU in Lima, Peru. Methods: A retrospective cohort including 133 patients with ARDS due to Covid-19 requiring MV in the Hospital Cayetano Heredia's ICU was built from March to November 2020. Results: Males accounted for 75% of the cohort; 68% had no comorbidities; 97% has severe ARDS and 82% received extended 72h prone MV. Overall mortality was 38%; bivariate analysis found that alive patients had lower plateau pressure 27±1 cm H20 vs. 30±1 cm H20 (p=0.007), lower driving pressure 15±4 vs. 17±5 (p=0.008), higher static lung compliance 32±1 vs. 28±1 ml/cm H20 (p=0.01) and higher Pa02/Fi02 ratio 194±86 mm Hg vs. 157±66 mm Hg (p=0.01) than patients who died. Patients on extended prone MV had better survival (p=0.03). Conclusions: 97% of patients in the cohort had severe ARDS; overall mortality was 38%, alive patients had lower plateau pressure and less driving pressure and extended prone MV improved survival.

Valoración estudiantil de la Disciplina Informática en la Carrera de Enfermería, Universidad Estatal de Bolívar, 2021 / Student Assessment of the Informatics Discipline in the Nursing Career, Bolívar State University, 2021

Introducción: El desarrollo tecnológico actual incide de manera especial en el sector de la salud originando cambios en la actuación de sus profesionales, en particular la actividad de enfermería es un espacio donde la disponibilidad de recursos tecnológicos aporta precisión, dinamismo e inmediatez, que facilitan análisis asertivos y toma de decisiones para con el paciente, a favor de la mejora en su calidad de vida. El profesional de enfermería requiere de conocimientos y habilidades durante su formación que le faciliten su inserción en el espacio laboral en correspondencia con la realidad actual. Objetivo: Describir la apreciación de los estudiantes de Enfermería del Programa de Rediseño de la Universidad Estatal de Bolívar con respecto al beneficio que les proporciona el estudio de la disciplina Informática. Método: Estudio transversal con carácter exploratorio y descriptivo, se aplica encuesta estructurada. Resultados: Se identifica como muy beneficioso el estudio de las materias informáticas como parte de su formación profesional, así como por su aplicación en la atención primaria de salud. Conclusiones: Los estudiantes tienen la percepción de que las materias informáticas estudiadas son de relevancia como parte de su formación, y de que estas influyen en su desempeño profesional futuro(AU)

Introduction: The current technological development has a special impact on the health sector, causing changes in the performance of its professionals; the nursing activity is in particular a space where the availability of technological resources provides precision, dynamism, and immediacy that facilitate analysis assertiveness and decision-making with the patient, in favor of improving their quality of life. The nursing professional requires knowledge and skills during their training that facilitate their insertion into the workplace in accordance with the current reality. Objective: To describe the appreciation of nursing students of the Bolívar State University Redesign Program regarding the benefit provided by the study of the Informatics discipline. Method: Cross-sectional study with an exploratory and descriptive nature, a structured survey is applied. Results: The study of computer science subjects as part of their professional training is identified as very beneficial, as well as for their application in primary health care. Conclusions: Students have the perception that the computer science subjects studied are relevant as part of their training, and that they influence their future professional performance(AU)

Absceso hepático, bacteriemia y meningoencefalitis por Klebsiella pneumoniae hipervirulenta en el curso de infección por SARS - CoV2. Reporte de caso

Klebsiella pneumoniae es miembro de la familia de enterobacterias, es un patógeno oportunista que afecta a las personas con compromiso inmune, y es causa de infecciones nosocomiales. Los serotipos capsulares K1 y K2 de Klebsiella pneumoniae tienen la característica de hipermucoviscosa, que es considerada una cepa hipervirulenta. Se presenta el caso de una mujer con absceso hepático, bacteriemia y meningoencefalitis por Klebsiella pneumoniae hipervirulenta, en el curso de una infección por SARS - COV2, quien requirió soporte ventilatorio, vasopresor, tratamiento antibiótico y drenaje percutáneo del absceso en la Unidad de cuidados intensivos del Hospital Cayetano Heredia, logrando sobrevivencia y alta hospitalaria. Este caso nos permite resaltar la presencia de la cepa hipervirulenta de Klebsiella pneumoniae en nuestro país, lo cual nos permitirá realizar una evaluación integral oportuna y tratamiento precoz.

SUMMARY Klebsiella pneumoniae is a member of the family of Enterobacteriaceae, it is an opportunistic pathogen that affects people with immune compromise, and it is the cause of nosocomial infections. The capsular serotypes K1 and K2 of Klebsiella pneumoniae have the characteristic of hypermucoviscosa, which is considered a hypervirulent strain. We present the case of a female patient with liver abscess, bacteremia and hypervirulent Klebsiella pneumoniae meningoencephalitis, in the course of a SARS - CoV2 infection, who required ventilatory support, vasopressor, antibiotic treatment and percutaneous drainage of the abscess in the intensive care unit (ICU) of the Hospital Cayetano Heredia, achieving survival and hospital discharge. This case allows us to highlight the presence of the hypervirulent strain of Klebsiella pneumoniae in our country, which will allow us to carry out a timely comprehensive evaluation and early treatment.

Reconfiguraciones familiares de excombatientes de grupos armados ilegales en procesos de reintegración y en desmovilización voluntaria / Family Reconfigurations of Ex-Combatants of Illegal Armed Groups in Reintegration and Voluntary Demobilization Processes

Resumen Esta es una reflexión derivada de investigación abordada desde la teoría fundamentada, que busca reconocer las posibles reconfiguraciones familiares presentes en excombatientes de grupos armados ilegales en procesos de reintegración y en desmovilización voluntaria. Para ello se aplicó una entrevista semiestructurada validada por expertos, con la cual se exploraron las Transformaciones Familiares de acuerdo con tres momentos: antes (estructura), durante (curso) y después (trayectorias), y en función de las categorías: tipos de familia, dinámicas familiares, relaciones externas, influencias insurgentes previas, conflictos intrafamiliares, y conflictos social-comunitarios. Los resultados revelan que existen procesos de familiarización más que de conformación de familias durante la estancia en el grupo insurgente, al tiempo que proto-configuraciones familiares que dan pie, ya en el posconflicto y por fuera del grupo armado, a reconfiguraciones de lo familiar y de nuevas familias.

Abstract This is a reflection derived from research approached from the informed theory, which seeks to recognize the possible family reconfigurations present in ex-combatants of illegal armed groups in reintegration processes, and voluntary demobilization. To this end, a semi-structured interview validated by experts was applied, with which family transformations were explored according to three moments: before (structure), during (course), and after (trajectories), and according to the categories: family types, family dynamics, external relations, previous insurgent influences, intrafamily conflicts, and social-community conflicts. The results reveal that there are processes of familiarization without family formation during the stay in the insurgent group, while proto-family configurations that give rise, already in the post-conflict and outside the armed group, to reconfigurations of the family and new families.

Cociente plaquetas/bazo para el diagnóstico de várices esofágicas y riesgo de sangrado en pacientes con insuficiencia hepática / Platelet / Spleen Ratio For The Diagnosis Of Esophageal Varices And The Risk Of Bleeding In Patients With Liver Failure

Introducción. El sangrado de tubo digestivo alto de origen variceal tiene una mortalidad alta. El cociente número de plaquetas/diámetro mayor del bazo puede ser un parámetro no invasivo útil para predecir el sangrado por várices esofágicas en pacientes cirróticos. Objetivo: Determinar la sensibilidad y especificidad del cociente número de plaquetas/diámetro mayor del bazo, para el diagnóstico de várices esofágicas con riesgo de sangrado en pacientes con insuficiencia hepática. Material Y Métodos: Estudio de proceso, realizado en un hospital de segundo nivel de atención médica, en pacientes con insuficiencia hepática a quienes se les realizó ultrasonido, citometría hemática, pruebas de función hepática y endoscopia. Se valoró sensibilidad y especificidad del cociente plaquetas/bazo para el diagnóstico de várices esofágicas con riesgo de sangrado. Resultados: Fueron 70 pacientes: 28 mujeres, 42 hombres; causa principal de insuficiencia hepática en hombres fue etilismo en 31 pacientes, virus de la hepatitis C en 20 mujeres. El cociente bazo-plaquetas tiene una sensibilidad de 90%, especificidad 83%, falsos positivos 16%, falsos negativos 9%, valor predictivo positivo 94%, valor predictivo negativo 75 %, prevalencia del 74% y una certeza diagnóstica del 88% para diagnosticar várices esofágicas con riesgo de sangrado. Conclusión: El cociente plaquetas/bazo es un estudio útil y no invasivo para diagnosticar várices esofágicas con riesgo de sangrado, en hospitales donde no se cuenta con endoscopía.

Introduction: Upper gastrointestinal bleeding of variceal origin has a high mortality. The platelet count/spleen major diameter ratio may be a useful noninvasive parameter to predict esophageal variceal bleeding in cirrhotic patients. Objective: to determine the sensitivity and specificity of the platelet count/spleen diameter ratio for the diagnosis of esophageal varices with risk of bleeding in patients with hepatic insufficiency. Material and Methods: Process study, performed in a Second Level Medical Facility, in patients with liver failure who underwent ultrasound, blood cytometry, liver function tests and endoscopy. Sensitivity and specificity of the platelet/spleen ratio were assessed in patients with esophageal variceal and bleeding risk. Results: There were 70 patients: 28 women, 42 men; main cause of liver failure in men was ethylism in 31 patients and hepatitis C virus in 20 women. The spleen-platelet ratio has a sensitivity of 90%, specificity 83%, false positives 16%, false negatives 9%, positive predictive value 94%, negative predictive value 75%, prevalence of 74% and diagnostic accuracy of 88% to diagnose esophageal varices with risk of bleeding. Conclusion: Platelet/spleen ratio is a useful, non-invasive study to diagnose esophageal varices with bleeding risk, in hospitals where endoscopy is not available.

Características epidemiológicas, clínicas, pre y posnatales de los neonatos, hijos de madre con la Covid-19, y del seguimiento hasta los 14 días post alta, en Lima-Perú / Pre and post-natal epidemiological and clinical features of neonates born from mothers infected with COVID-19 and 14-day follow-up post discharge in Lima, Peru

RESUMEN Objetivo: Describir las características clínicas prenatales y post natales de los neonatos hijos de madres con la Covid-19, y seguimiento hasta los 14 días post alta. Material y métodos: Estudio tipo observacional, serie de casos, censal de los neonatos nacidos en el Hospital Guillermo Almenara Irigoyen, hijos de madres con la Covid-19, que nacieron durante la cuarentena decretada por el gobierno peruano. Los neonatos se dividieron en 2 grupos: con la prueba PCR nasofaríngea positiva o no y se observó si alguna de estas características estuvieron asociadas con la presentación de esta prueba positiva. Resultados: Hubieron 201 gestantes con diagnóstico de Covid-19 por prueba rápida y que tuvieron 206 neonatos. De ellos, 4 neonatos tuvieron la PCR nasofaríngea positiva y 202, negativa. La edad materna fue menor en el grupo con la prueba positiva, pero no hubo diferencia respecto al tipo de parto: césarea, fueron a termino, con adecuado peso al nacer y ningún sexo predominó. Doscientos cinco (99,51%) neonatos salieron de alta en la primera semana de vida; 181 (90,05%) neonatos con PCR nasofaríngea negativa y los 4 neonatos con prueba positiva fueron seguidos por 2 semanas; ninguno presentó síntomas y el tipo de lactancia fue mixta. Conclusiones: Los neonatos hijos de madres con la Covid-19, tendrían una mínima posibilidad de contraer esta enfermedad. Y su desarrollo prenatal y post natal no se vería afectado, a pesar de incluso tener la prueba PCR nasofaríngea positiva.

SUMMARY Objective: To describe prenatal and post-natal clinical features of neonates born from mothers with COVID-19 including 14-day follow-up post discharge. Methods: Case series of neonates attended at Hospital Guillermo Almenara born from mothers infected with COVID-19 during the lockdown implemented by the Peruvian government. Neonates were divided in two groups based on positivity of the nasopharyngeal PCR test. Results: 201 pregnant women with COVID-19 diagnosed by rapid tests who delivered 206 neonates were identified; 4 of these neonates had positive nasopharyngeal PCR tests. Pregnants infected with COVID-19 were younger than non-infected, but no differences were observed in route of delivery, sex of the newborn and body weight at birth. Two hundred and five neonates were discharged one week after birth ;181 neonates with negative nasopharyngeal negative PCR tests and 4 neonates with a positive PCR test were followed for 14 days, none presented symptoms and received mixed lactation. Conclusions: Neonates born from mother infected with COVID-19 had minimal risk of getting the infection and their pre and post-natal development will not be affected despite of having a positive PCR test.

Tratamiento con radioyodo de la patología tiroidea / Radioiodine treatment of thyroid diseases

INTRODUCCIÓN Y OBJETIVO: El tratamiento de la patología con radioyodo (RAI) se viene realizando desde hace más de 7 décadas. Sin embargo, no existe consenso en cuanto a indicaciones, dosis y otros aspectos relacionados con el cuidado de los pacientes. La razón de ello es la ausencia de ensayos clínicos prospectivos bien diseñadospara resolver estos interrogantes en cuanto al tratamiento con 131I, a pesar de la alta prevalencia de las enfermedades tiroideas. El tratamiento con 131I está indicado en el tratamiento del hipertiroidismo, producido por la enfermedad de Graves, por el adenoma tóxico y por el bocio multinodular tóxico; del bocio multinodular no tóxico y del carcinoma diferenciado de tiroides (CDT). El objetivo del tratamiento con RAI en caso del hipertiroidismo y del bocio multinodular no tóxico es disminuir la función tiroidea o disminuir el volumen de la glándula tiroides. En el caso del CDT, los objetivos de la administración de RAI tras la cirugía son la ablación de los restos tiroideos, el tratamiento adyuvante de la enfermedad microscópica sospechada no confirmada y el tratamiento de la enfermedad persistente loco-regional o metastásica. A la espera de los resultados de ensayos clínicos actualmente en: marcha, el tratamiento con 131I está justificado no solo en los pacientes de alto riesgo, sino también en los pacientes de riesgo bajo (T > 1 cm) e intermedio

Introduction and ojective: Radioiodine (RAI) therapy of the thyroid diseases has been used for seven decades. However, there is no consensus regarding indications, doses, procedures, and other aspects related to the clinical care of the patients considered for 131I therapy. The reason for this is the lack of large well-designed prospective clinical trials resolving fundamental questions in relation to 131I therapy, despite the high prevalence of thyroid diseases. Radioiodine therapy is indicated for the treatment of hyperthyroidism (Graves'disease, toxic nodular goiter and toxic multinodular goiter), multinodular nontoxic goiter and differentiated thyroid carcinoma (DTC). In benign thyroid diseases, RAI is administered to decrease the thyroid function and/or reduction of the thyroid volume. In DTC, post-operative administration of RAI may includeremnant ablation to eliminate residual normal thyroid tissue after thyroidectomy, adjuvant therapy to destroy suspected, but unproven residual disease and RAI therapy to treat persistent disease in higher risk patients. Pending the results of the prospective clinical trials that are currently underway, the use of 131I seems to be justified not only in high-risk patients, but also in low-intermediate-risk patients

Experiencia y resultados de un proceso educativo interdisciplinario para la promoción de salud en universitarios / Experience and results of an interdisciplinary educational process for the promotion of health with university students / Experiência e resultados dum processo educativo interdisciplinario para a promoção de saúde em universitarios

Objetivo: Capacitar a un grupo interdisciplinario de estudiantes de pregrado como promotores universitarios de salud y evaluar los resultados. Metodología: Investigación acción participativa con 13 estudiantes de pregrado de la Pontificia Universidad Católica del Ecuador durante el periodo 2012-2014. El proceso se desarrolló en cuatro fases: 1) capacitación en promoción de salud del grupo; 2) diagnóstico de la situación de salud general de los estudiantes; 3) diseño, planificación e implementación de un proyecto ejecutado por los estudiantes capacitados; y 4) evaluación de la intervención. En cada fase se aplicaron técnicas cualitativas y cuantitativas para el diagnóstico y evaluación de resultados. Resultados: Fase 1: 100% de los estudiantes completaron el proceso de capacitación. Fase 2: se identificó como principales problemas de salud en la población estudiantil universitaria a los relacionados con salud mental (estrés, ansiedad, depresión), alimentación inadecuada y violencia. Fase 3: Se diseñó y ejecutó un proyecto de intervención a partir del diagnóstico realizado, que benefició a 2916 pares. Fase 4: Como resultado de la intervención, el 76,2% de los beneficiarios manifestaron enfrentar los problemas cotidianos, 90,6% lo consideraron importante para su desarrollo personal espiritual, afectivo y corporal, 94% mejoró las relaciones con sus compañeros, 68,9% aprendieron sobre sus derechos y 38% reconocieron que modificaron sus hábitos de vida. Conclusiones: La metodología implementada otorgó a los estudiantes herramientas para diseñar, ejecutar y evaluar proyectos interdisciplinarios de promoción de salud. La investigación-acción posibilita transformaciones de las realidades en salud en entornos universitarios y es factible de ser aplicada en otros contextos.

Objective: To train an interdisciplinary group of undergraduate students as university health promoters and evaluate their results. Methodology: Participatory action research with 13 undergraduate students of the Pontificia Universidad Católica de Ecuador during the period 2012-2014. The process was developed in four phases: 1) training in health promotion of the group; 2) diagnosis of the general health situation of the students; 3) design, planning and implementation of a project executed by trained students; and 4) evaluation of the intervention. Qualitative and quantitative techniques were applied in each phase for the diagnosis and evaluation of results. Results: Phase 1: 100% of the students completed the training process; Phase 2: The main health problems in the university student population were identified as related to mental health (stress, anxiety, and depression), inadequate diet and violence; Phase 3: An intervention project was designed and executed based on the diagnosis made, which benefited 2916 peers; Phase 4: As a result of the intervention, 76.2% of the beneficiaries stated that they faced daily problems, 90.6% considered it important for their personal spiritual, emotional and corporal development, 94% improved relations with their peers, 68, 9% learned about their rights and 38% acknowledged that they modified their life habits. Conclusions: The methodology implemented gave students tools to design, execute and evaluate interdisciplinary health promotion projects. Action research enables transformations of realities in health in university settings and is feasible to be applied in other contexts.

Objetivo: Capacitar a um grupo interdisciplinares de estudantes de formatura como promotores universitários de saúde e avaliar os resultados. Metodologia: Pesquisa ação participativa com 13 estudantes de formatura da Pontifícia Universidade Católica do Equador durante o período 2012-2014. O processo de desenvolvimento em quatro fases: 1) capacitação em promoção de saúde do grupo; 2) diagnóstico da situação de saúde geral dos estudantes; 3) design, planificação e execução dum projeto executado pelos estudantes capacitados; e 4) avaliação da intervenção. Em cada fase se aplicação técnicas qualitativas e quantitativas para o diagnóstico e avaliação de resultados. Resultados: Fase 1: 100% dos estudantes terminaram o processo de capacitação. Fase 2: Identificou- se como principais problemas de saúde na população estudantil universitária aos relacionados com saúde mental (estresse, ansiedade, depressão), alimentação inadequada e violência. Fase 3: Desenhou-se e executou um projeto de intervenção a partir do diagnóstico realizado, que beneficiou a 2916 pares. Fase 4: Como resultado da intervenção, o 76,2% dos beneficiários manifestaram enfrentar os problemas cotidianos, 90,6% o consideraram importante para seu desenvolvimento pessoal espiritual, afetivo e corporal, 94% melhorou as relações com seus colegas, 68,9% aprenderam sobre seus direitos e 38% reconheceram que modificaram seus hábitos de vida. Conclusões: A metodologia executada deu aos estudantes ferramentas para desenhar, executar e avaliar projetos interdisciplinares de promoção de saúde. A pesquisa-ação possibilita transformações das realidades em saúde em entornos universitários e é possível de ser aplicada em outros contextos.