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Background: Febrile neutropenia is a life-threatening condition commonly observed in patients with hematologic malignancies. The aim of this article is to provide updated knowledge about bloodstream infections in febrile neutropenia episodes within the Andean region of Latin America. Method: This retrospective study was based in 6 hospitals in Chile, Ecuador, and Peru and included adult patients with acute leukemia or lymphoma and febrile neutropenia between January 2019 and December 2020. Results: Of the 416 febrile neutropenia episodes, 38.7% had a bloodstream infection, 86% of which were caused by gram-negative rods, with Klebsiella pneumoniae, Escherichia coli, and Pseudomonas aeruginosa being the most frequently identified bacteria. K pneumoniae isolates were more frequently resistant than E coli to cefotaxime (65% vs 39.6%), piperacillin-tazobactam (56.7% vs 27.1%), and imipenem (35% vs 2.1%) and were more frequently multidrug resistant (61.7% vs 12.5%). Among P aeruginosa, 26.7% were resistant to ceftazidime, piperacillin-tazobactam, and imipenem, and 23.3% were multidrug resistant. Overall 30-day mortality was 19.8%, being higher with vs without a bloodstream infection (26.7% vs 15.3%, P = .005). Fever duration was also significantly longer, as well as periods of neutropenia and length of hospital stay for patients with bloodstream infection. Additionally, the 30-day mortality rate was higher for episodes with inappropriate vs appropriate empirical antibiotic therapy (41.2% vs 26.6%, P = .139). Conclusions: Considering the high rates of bacteria-resistant infection and 30-day mortality, it is imperative to establish strategies that reduce the frequency of bloodstream infections, increasing early identification of patients at higher risks of multidrug bacteria resistance, and updating existing empirical antibiotic recommendations.

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Background: Solid-organ transplant (SOT) recipients have worse COVID-19 outcomes than general population and effective immunisation in these patients is essential but more difficult to reach. We aimed to determine the immunogenicity of an mRNA SARS-CoV-2 vaccine booster in SOT recipients previously immunised with either inactivated or homologous SARS-CoV-2 mRNA vaccine. Methods: Prospective cohort study of SOT recipients under medical care at Red de Salud UC-CHRISTUS, Chile, previously vaccinated with either CoronaVac or BNT162b2. All participants received a BNT162b2 vaccine booster. The primary study end point was anti-SARS-CoV-2 total IgG antibodies (TAb) seropositivity at 8-12 weeks (56-84 days) post booster. Secondary end points included neutralising antibodies (NAb) and specific T-cell responses. Findings: A total of 140 (50% kidney, 38% liver, 6% heart) SOT recipients (mean age 54 [13.6] years; 64 [46%] women) were included. Of them, 62 had homologous (three doses of BNT162b2) and 78 heterologous vaccine schedules (two doses of CoronaVac followed by BNT162b2 booster). Boosters were received at a median of 21.3 weeks after primary vaccination. The proportion achieving TAb seropositivity (82.3% vs 65.4%, P = 0.035) and NAb positivity (77.4% vs 55.1%, P = 0.007) were higher for the homologous versus the heterologous group. On the other hand, the number of IFN-γ and IL-2 secreting SARS-CoV-2-specific T-cells did not differ significantly between groups. Interpretation: This cohort study shows that homologous mRNA vaccine priming plus boosting in SOT recipients, reaches a significantly higher humoral immune response than inactivated SARS-CoV-2 vaccine priming followed by heterologous mRNA booster. Funding: School of Medicine, UC-Chile and ANID.ClinicalTrials.gov ID: NCT05124509.

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One recognized cause of cardiorespiratory diseases is air pollution. Older adults (OA) are one of the most vulnerable groups that suffer from its adverse effects. The objective of the study was to analyze the association between exposure to air pollution and changes in cardiorespiratory variables in OA. Observational prospective cohort study. Health questionnaires, blood pressure (BP) measurements, lung functions, respiratory symptoms, physical activity levels, and physical fitness in high and low exposure to air pollution were all methods used in evaluating OAs in communes with high contamination rates. Linear and logistic models were created to adjust for variables of interest. A total of 92 OA participated in this study. 73.9% of the subjects were women with 72.3 ± 5.6 years. 46.7% were obese, while 12.1% consumed tobacco. The most prevalent diseases found were hypertension, diabetes, and cardiovascular disease. Adjusted linear models maintained an increase for systolic BP of 6.77 mmHg (95% CI: 1.04-12.51), and diastolic of 3.51 mmHg (95% CI: 0.72-6.29), during the period of high exposure to air pollution. The adjusted logistic regression model indicated that, during the period of high exposure to air pollution increase the respiratory symptoms 4 times more (OR: 4.43, 95% CI: 2.07-10.04) in the OA. The results are consistent with an adverse effect on cardiorespiratory variables in periods of high exposure to air pollution in the OA population.

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RESUMEN: Introducción: La rehabilitación cardíaca después de padecer un evento cardiovascular (CV) grave es un proceso en el cual el paciente establece una relación cercana con el equipo médico, brindando la oportunidad de conocer factores psicosociales que influyeron en el desenlace cardíaco y los eventuales aprendizajes de la experiencia. El objetivo de este estudio fue conocer la percepción sobre su propia salud de mujeres que participaron de un programa de rehabilitación cardíaca. Método: Se invitó a participar a 35 mujeres de 35 a 75 años con diverso nivel educativo, ingreso familiar y situación laboral. Los datos se recolectaron por medio de entrevistas presenciales semiestructuradas. Resultados: A pesar de haber pasado por un proceso de rehabilitación posterior a un evento CV las mujeres mencionaron en forma mayoritaria al cáncer de mama como la principal eventual causa de muerte. En relación con los factores de riesgo de CV, el más nombrado fue el estrés (57%), aunque solo el 29% de las entrevistadas realizó con posterioridad actividades orientadas a su manejo y control. En cuanto a las motivaciones más frecuentes para realizar cambios de hábitos, destacaron el cuidado de la familia (29%), el vivir más (26%) y el deseo de sentirse mejor (23%). Conclusión: Estos resultados sugieren la necesidad de una educación más integral en la mujer durante la rehabilitación, promoviendo no solo hábitos más saludables desde el punto de vista físico, sino también psicológico. Se sugiere integrar el manejo del estrés en los programas de prevención y rehabilitación CV.

ABSTRACT: Introduction: After suffering a serious cardiovascular event (CV), cardiac rehabilitation is a process in which the patient establishes a close relationship with the medical team, providing an opportunity to learn about psychosocial factors that influence cardiac outcome and eventual learnings from the experience. The objective of this study was to learn about women´s perception of their own health after participating in a cardiac rehabilitation program. Method: 35 women from 35 to 75 years of age with varying educational level, household income and employment status were invited to participate. Data was collected through semi-structured face-to-face interviews. Results: Women mentioned breast cancer as the leading cause of death (60%) despite having gone through a post-CV rehabilitation process. Stress was mentioned as the main CV risk factor (57%). Only 29% of responders subsequently carried out activities aimed at their management and control. The most common motivations for making changes in habits, were family care (29%), living longer (26%) and a desire to feel better (23%). Conclusion: These results suggest the need for a more comprehensive education in women during rehabilitation, promoting not only healthier habits from a physical but also from a psychological points of view. The introduction of stress management into CV prevention and rehabilitation programs is suggested.

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Background: There is a misconception that the main cause of death among women is breast cancer, even among physicians, who may neglect cardiovascular preventive measures in this gender Aim: To assess the knowledge among physicians about the main cause of death among women. Material and methods: A survey was answered by 231 physicians attending a Cardiology and a Gynecology Meeting. Results: Sixty eight percent of respondents indicated that cardiovascular diseases are the main cause of death among women. A higher proportion of specialists than trainees, answered correctly the question (72 and 56% respectively). No gender differences in the answers were recorded. Conclusions: The knowledge about cardiovascular risk in women should be reinforced among physicians.

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BACKGROUND: There is a misconception that the main cause of death among women is breast cancer, even among physicians, who may neglect cardiovascular preventive measures in this gender Aim: To assess the knowledge among physicians about the main cause of death among women. MATERIAL AND METHODS: A survey was answered by 231 physicians attending a Cardiology and a Gynecology Meeting. RESULTS: Sixty eight percent of respondents indicated that cardiovascular diseases are the main cause of death among women. A higher proportion of specialists than trainees, answered correctly the question (72 and 56% respectively). No gender differences in the answers were recorded. CONCLUSIONS: The knowledge about cardiovascular risk in women should be reinforced among physicians.

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