"I didn't know anything, but I learned over time": The process of nurses attaining autonomy in Intensive Care Units / "No sabía nada, con el tiempo lo aprendí": El proceso de los enfermeros de alcanzar la Autonomía en Unidades de Cuidado Intensivos / "Não sabia nada, com o tempo aprendi": O processo de autonomia do enfermeiro em Unidade de Terapia Intensiva

Objective. Understand the social processes experienced by nursing professionals and the meanings underlying autonomy in adult Intensive Care Units in the city of Cartagena (Colombia). Methods. A qualitative study with a grounded theory approach was conducted. Fifteen semi-structured interviews were carried out with nursing professionals, and the analysis was based on the coding technique proposed by Strauss & Corbin. Results. Of the respondents, fourteen were female and one was male, with ages ranging from 23 to 57 years. Experience in intensive care units ranged from 1 to 28 years, and none had postgraduate studies. After thematic analysis, the central category was obtained from four categories: adaptation process, applicability of autonomy exercise, building autonomous competence, and limitations to the exercise of autonomy. Conclusion. Nursing professionals achieve their autonomy through a social process, based on different stages of learning when facing the environment of the units. It is grounded in decision-making and the power to act freely. However, barriers continue to hinder it, including limitations imposed by institutions, protocol-based interventions, social status, and individual differences among professionals.

Objetivo. Comprender el proceso social que viven los profesionales de enfermería y los significados que subyacen a la autonomía en las Unidades de Cuidados Intensivos adultos en la ciudad de Cartagena (Colombia). Métodos. Estudio cualitativo con enfoque de la teoría fundamentada, se realizaron quince entrevistas semiestructuradas en profesionales de enfermería, el análisis se realizó basado en la técnica de codificación propuesta por Strauss y Corbin. Resultados. Los entrevistados eran catorce de sexo femenino y uno de sexo masculino, con edades entre los 23 y 57 años, la experiencia en unidades de cuidados intensivos oscilo entre 1 y 28 años y ninguno conto con estudios de posgrados. Tras el análisis temático se obtuvo la categoría central "Cuando yo entré no sabía, con el tiempo lo aprendí" a partir de cuatro categorías: proceso de adaptación; aplicabilidad ejercicio de la autonomía; construyendo la competencia autónoma; y limitaciones para el ejercicio de la autonomía. Conclusión. El profesional de enfermería logra su autonomía a través de un proceso social, basado en diferentes etapas de aprendizaje al enfrentarse al ambiente de las unidades, se sustenta en la toma de decisiones y el poder de hacer las cosas de forma libre. Sin embargo, existen barreras que la siguen obstaculizando, entre ellas las limitaciones dadas por las instituciones, intervenciones basadas en protocolos, el estatus social y la individualidad entre los profesionales.

Objetivo. Compreender o processo social vivenciado pelos profissionais de enfermagem e os significados subjacentes à autonomia nas Unidades de Terapia Intensiva adulto da cidade de Cartagena (Colômbia). Métodos. Estudo qualitativo com abordagem da teoria fundamentada, foram realizadas quinze entrevistas semiestruturadas com profissionais de enfermagem, a análise foi realizada com base na técnica de codificação proposta por Strauss y Corbin. Resultados. Os entrevistados foram quatorze mulheres e um homem, com idade entre 23 e 57 anos, a experiência em unidades de terapia intensiva variou entre 1 e 28 anos e nenhum possuía pós-graduação. Após a análise temática, obteve-se a categoria central "Quando entrei não sabia, aprendi com o tempo" a partir de quatro categorias: processo de adaptação; aplicabilidade exercício de autonomia; construção de competência autônoma; e limitações para o exercício da autonomia. Conclusão. O profissional de enfermagem conquista sua autonomia por meio de um processo social, baseado em diferentes etapas de aprendizagem diante do ambiente das unidades, baseado na tomada de decisão e no poder de fazer livremente. No entanto, existem barreiras que continuam a dificultá-lo, incluindo limitações dadas pelas instituições, intervenções baseadas em protocolos, status social e individualidade entre os profissionais.

Evaluation of factors leading to poor outcomes for pediatric acute lymphoblastic leukemia in Mexico: a multi-institutional report of 2,116 patients.

Background and aims: Pediatric acute lymphoblastic leukemia (ALL) survival rates in low- and middle-income countries are lower due to deficiencies in multilevel factors, including access to timely diagnosis, risk-stratified therapy, and comprehensive supportive care. This retrospective study aimed to analyze outcomes for pediatric ALL at 16 centers in Mexico. Methods: Patients <18 years of age with newly diagnosed B- and T-cell ALL treated between January 2011 and December 2019 were included. Clinical and biological characteristics and their association with outcomes were examined. Results: Overall, 2,116 patients with a median age of 6.3 years were included. B-cell immunophenotype was identified in 1,889 (89.3%) patients. The median white blood cells at diagnosis were 11.2.5 × 103/mm3. CNS-1 status was reported in 1,810 (85.5%), CNS-2 in 67 (3.2%), and CNS-3 in 61 (2.9%). A total of 1,488 patients (70.4%) were classified as high-risk at diagnosis. However, in 52.5% (991/1,889) of patients with B-cell ALL, the reported risk group did not match the calculated risk group allocation based on National Cancer Institute (NCI) criteria. Fluorescence in situ hybridization (FISH) and PCR tests were performed for 407 (19.2%) and 736 (34.8%) patients, respectively. Minimal residual disease (MRD) during induction was performed in 1,158 patients (54.7%). The median follow-up was 3.7 years. During induction, 191 patients died (9.1%), and 45 patients (2.1%) experienced induction failure. A total of 365 deaths (17.3%) occurred, including 174 deaths after remission. Six percent (176) of patients abandoned treatment. The 5-year event-free survival (EFS) was 58.9% ± 1.7% for B-cell ALL and 47.4% ± 5.9% for T-cell ALL, while the 5-year overall survival (OS) was 67.5% ± 1.6% for B-cell ALL and 54.3% ± 0.6% for T-cell ALL. The 5-year cumulative incidence of central nervous system (CNS) relapse was 5.5% ± 0.6%. For the whole cohort, significantly higher outcomes were seen for patients aged 1-10 years, with DNA index >0.9, with hyperdiploid ALL, and without substantial treatment modifications. In multivariable analyses, age and Day 15 MRD continued to have a significant effect on EFS. Conclusion: Outcomes in this multi-institutional cohort describe poor outcomes, influenced by incomplete and inconsistent risk stratification, early toxic death, high on-treatment mortality, and high CNS relapse rate. Adopting comprehensive risk-stratification strategies, evidence-informed de-intensification for favorable-risk patients and optimized supportive care could improve outcomes.

"I didn't know anything, but I learned over time": The process of nurses attaining autonomy in Intensive Care Units.

Objective: Understand the social processes experienced by nursing professionals and the meanings underlying autonomy in adult Intensive Care Units in the city of Cartagena (Colombia). Methods: A qualitative study with a grounded theory approach was conducted. Fifteen semi-structured interviews were carried out with nursing professionals, and the analysis was based on the coding technique proposed by Strauss & Corbin. Results: Of the respondents, fourteen were female and one was male, with ages ranging from 23 to 57 years. Experience in intensive care units ranged from 1 to 28 years, and none had postgraduate studies. After thematic analysis, the central category was obtained from four categories: adaptation process, applicability of autonomy exercise, building autonomous competence, and limitations to the exercise of autonomy. Conclusion: Nursing professionals achieve their autonomy through a social process, based on different stages of learning when facing the environment of the units. It is grounded in decision-making and the power to act freely. However, barriers continue to hinder it, including limitations imposed by institutions, protocol-based interventions, social status, and individual differences among professionals.

Association Analysis Between the Functional Single Nucleotide Variants in miR-146a, miR-196a-2, miR-499a, and miR-612 With Acute Lymphoblastic Leukemia.

BACKGROUND: Acute lymphoblastic leukemia (ALL) is characterized by an abnormal proliferation of immature lymphocytes, in whose development involves both environmental and genetic factors. It is well known that single nucleotide polymorphisms (SNPs) in coding and noncoding genes contribute to the susceptibility to ALL. This study aims to determine whether SNPs in miR-146a, miR-196a-2, miR-499a, and miR-612 genes are associated with the risk to ALL in pediatric Mexican population. METHODS: A multicenter case-control study was carried out including patients with de novo diagnosis of ALL and healthy subjects as control group. The DNA samples were obtained from saliva and peripheral blood, and the genotyping of rs2910164, rs12803915, rs11614913, and rs3746444 was performed using the 5'exonuclease technique. Gene-gene interaction was evaluated by the multifactor dimensionality reduction (MDR) software. RESULTS: miR-499a rs3746444 showed significant differences among cases and controls. The rs3746444G allele was found as a risk factor to ALL (OR, 1.6 [95% CI, 1.05-2.5]; p = 0.028). The homozygous GG genotype of rs3746444 confers higher risk to ALL than the AA genotype (OR, 5.3 [95% CI, 1.23-23.4]; p = 0.01). Moreover, GG genotype highly increases the risk to ALL in male group (OR, 17.6 [95% CI, 1.04-298.9]; p = 0.00393). In addition, an association in a gender-dependent manner among SNPs located in miR-146a and miR-196a-2 genes and ALL susceptibility was found. CONCLUSION: Our findings suggest that SNP located in miR-499a, miR-146a, and miR-196a-2 genes confer risk to ALL in Mexican children. Experimental analysis to decipher the role of these SNPs in human hematopoiesis could improve our understanding of the molecular mechanism underlying the development of ALL.

Transcriptome Analysis Identifies LINC00152 as a Biomarker of Early Relapse and Mortality in Acute Lymphoblastic Leukemia.

Evidence showing the role of long non-coding RNAs (lncRNAs) in leukemogenesis have emerged in the last decade. It has been proposed that these genes can be used as diagnosis and/or prognosis biomarkers in childhood acute lymphoblastic leukemia (ALL). To know if lncRNAs are associated with early relapse and early mortality, a microarray-based gene expression analysis in children with B-lineage ALL (B-ALL) was conducted. Cox regression analyses were performed. Hazard ratios (HR) and 95% confidence intervals (95% CI) were calculated. LINC00152 and LINC01013 were among the most differentially expressed genes in patients with early relapse and early mortality. For LINC00152 high expression, the risks of relapse and death were HR: 4.16 (95% CI: 1.46-11.86) and HR: 1.99 (95% CI: 0.66-6.02), respectively; for LINC01013 low expression, the risks of relapse and death were HR: 3.03 (95% CI: 1.14-8.05) and HR: 6.87 (95% CI: 1.50-31.48), respectively. These results were adjusted by NCI risk criteria and chemotherapy regimen. The lncRNA-mRNA co-expression analysis showed that LINC00152 potentially regulates genes involved in cell substrate adhesion and peptidyl-tyrosine autophosphorylation biological processes. The results of the present study point out that LINC00152 could be a potential biomarker of relapse in children with B-ALL.

Prevalence of inhibitors and clinical characteristics in patients with haemophilia in a middle-income Latin American country.

INTRODUCTION: Development of inhibitors is the most serious complication in patients with haemophilia (PWH). The prevalence of inhibitors in patients with severe haemophilia A (HA) is approximately 25%-30%. Inhibitor prevalence differs among populations. Some studies report a prevalence of almost twice in Hispanic as compared to Caucasian patients. Most data available, on the prevalence of inhibitors and their predisposing factors, originate from centres in developed countries. AIM: Establish the prevalence of inhibitors of FVIII and FIX in Mexico. METHODS: This was an observational, cross-sectional and descriptive study. The records of all patients diagnosed with haemophilia A (HA) or B (HB), with and without inhibitors, were included. Clinical and demographical characteristics of patients with inhibitors were assessed. Statistical analysis was performed using IBM SPSS version 22. The Ethics Committees of the various participating institutions approved this study. RESULTS: A total of 1455 patients from the 20 participating centres were recruited, from which 1208 (83.02%) had HA and 247 (16.97%) were diagnosed with HB. The presence of inhibitors in severe HA was reported in 93/777(11.96%), and 10/162 (6.17%) in severe HB. Of them, 91.7% exhibited high titres in HA and 100% in HB. CONCLUSION: In Mexico, the general prevalence of inhibitors varies considerably among centres. This study established a basis of comparison for future development and advances in the treatment and follow-up of patients. These findings also augment our understanding of risk factors related to inhibitor development.

Asociación entre disfuncionalidad familiar y síntomas depresivos con importancia clínica en estudiantes de Cartagena, Colombia / Association between family dysfunction and clinically important depressive symptoms among students of Cartagena, Colombia

Introducción: La presencia de síntomas depresivos con importancia clínica, a lo largo del ciclo vital, es el resultado de la imbricación de múltiples factores. Se ha señalado que la disfuncionalidad familiar se relaciona positivamente con síntomas depresivos con importancia clínica; sin embargo, los datos son divergentes. Objetivo: Establecer la asociación entre disfuncionalidad familiar y síntomas depresivos con importancia clínica en adolescentes estudiantes de un colegio de un sector de estrato bajo (I) en Cartagena, Colombia. Método: Se diseñó un estudio transversal en el que participaron estudiantes de secundaria. Se cuantificó la disfuncionalidad familiar con el cuestionario de APGAR familiar y síntomas depresivos con importancia clínica con la escala de Zung para depresión. Se usó la regresión logística para controlar confusores. Resultados: Participaron 424 estudiantes de séptimo a undécimo grado con edad promedio de 14,7 años (DE=1,6), 59% mujeres y una escolaridad promedio de 8,6 (DE=1,3). Informaron disfuncionalidad familiar el 41% y síntomas depresivos con importancia clínica, el 41% de los estudiantes. Se observó falta de asociación entre disfuncionalidad familiar y síntomas depresivos con importancia clínica (OR=1,4; IC 95%: 0,92-2,1), después de controlar por otras variables. Conclusiones: La presencia de disfuncionalidad familiar y la presencia de síntomas depresivos con importancia clínica no guarda asociación significativa en estudiantes de estrato bajo...

Introduction: The presence of clinically important depressive symptoms is the result of multiple factors. It has been pointed out that dysfunctional families relate positively with depressive symptoms with clinical significance. However, data are divergent. Objective: To establish the association between family dysfunction and depressive symptoms among adolescent students of a school in a low socio-economic level sector in Cartagena, Colombia. Method: A cross-sectional study was carried out with secondary school students. Family dysfunction was quantified with the APGAR family questionnaire, and clinically important depressive symptoms with the Zung’ scale for depression. Logistic regression was used to control confounding variables. Results: The participants were 424 students from the seventh to the eleventh grade. Average age was 14.7 years (SD=1.6), 59% were girls, and the school grade average was 8.6 (SD=1.3). Family dysfunction was present in 41% and clinically important depressive symptoms were found in 41% of students. There was a lack of association between dysfunctional families and depressive symptoms with clinical significance (OR=1.4, 95%CI 0.92-2.1), after controlling for other variables. Conclusions: Family dysfunction and clinically important depressive symptoms are not associated in students living in areas with low socio-economic levels in Cartagena, Colombia...

Dimethyl sulfoxide-induced toxicity in cord blood stem cell transplantation: report of three cases and review of the literature.

Umbilical cord blood transplantation using nonmyeloablative conditioning is currently considered by many as a valid potential alternative for any patient who requires an unrelated donor allograft and who is without a suitably matched and readily available volunteer. Dimethyl sulfoxide (DMSO) has been used for years as a cryoprotectant agent; it acts by penetrating the cell and binding water molecules and it has been described as harmless for the individual who receives it in limited amounts. In this paper, we describe 3 cases of DMSO-induced toxicities and briefly review the most common adverse reactions of the DMSO when used as a cryopreservation agent for the long-term storage of cord blood cells. Two of the 3 cases had a dismal prognosis. A brief review of the literature is presented.