Jesús Reyna-Figueroa

Como consecuencia del uso indiscriminado de antibióticos, la resistencia antimicrobiana (RAM) se ha posicionado en las últimas décadas c...

Background: Determining the effect of reopening schools on pediatric SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) infection rates increased t...

Introduction: COVID-19 was declared a pandemic in March 2020, requiring a comprehensive response from all healthcare systems, including Mexico’s. As medical residents’ training did not involve epidemic response, we decided to evaluate their level of training on this subject, specifically self-perceived knowledge level and capacity to respond to epidemiological crises. Methodology: Medical residents from two hospitals belonging to PEMEX (Mexico’s state-owned petroleum company) were included in a cross-sectional study. All participants answered a modified version of the survey developed by the University of Lovaina’s Center for Research and Education in Emergency Care. Participants were analyzed according to their relevant “clinical” or “surgical” residency tracks. Data were analyzed using through Chi-square tests, t-tests, Mann–Whitney U tests, Kruskal-Wallis tests, and Pearson and Spearman correlation coefficients with significance established at p < 0.05. Results: Of a total of 94 resident participants in this study, 56.7% self-perceived themselves as being poorly prepared to confront the pandemic. Only 25.5% of the participants referred previous experience in medical responses to public health emergencies, and only 35.1% reported ever receiving education on this topic. Conclusions: Medical residents—who have been involved with caring for victims of the pandemic—are under the general perception that they are not prepared, experienced, or educated enough to respond to such a widespread massive public health emergency.

Introduction: During the administration of antineoplastic drugs, acute complications because of toxicity occur, determining their hospital readmission, visits to the emergency department, use of antimicrobials, and possibilities of presenting systemic infections, impacting on their life quality. Methods: Through a prospective cohort, 60 children with acute lymphoblastic leukemia were followed-up for 30 days after the hospital discharge because of chemotherapy administration, those patients were previously included in a single-blinded study in which 30 (group 1) received Lactobacillus rhamnosus GG probiotic during the administration of chemotherapy. The remaining 30 patients did not receive probiotics (group 2). There were evaluated gastrointestinal symptoms, such as diarrhea, dyspepsia, abdominal distension, meteorism, constipation, nausea, and vomit, development of infections, antibiotic use, number of emergency department visits, number of hospitalizations, and sepsis diagnosis. Statistical Analysis: To assess the impact of the use of probiotics, the difference in proportions between both study groups was evaluated. Results: Gastrointestinal manifestations (nausea, vomiting, diarrhea, constipation) occurred in 30% of patients in group 1 versus 63% of group 2 (P=0.009). Nine of 30 patients (30.0%) in group 1 went to the emergency room, versus 33.3% of group 2 (P=0.7). Antimicrobials were used in 8 subjects (26.6%) in group 1 versus 6 subjects (53.3%) in group 2 (P=0.03) suspected of an infectious disease. Four (13.3%) group 1 patients were hospitalized versus 30% of group 2 (P=0.1). Two subjects (6.6%) in group 1 had sepsis versus 7 (23.3%) in group 2 (P=0.07). Conclusions: The results indicate that the use of probiotics can be a great alternative in the improvement of gastrointestinal symptoms and the adverse effects associated with chemotherapy.

Existe la percepción general de que los estudiantes de medicina deben ayudar en caso de situaciones de desastre o en contingencias epidemiológicas; aunque es posible que no hayan sido debidamente educados para hacerlo. En últimas fechas, la participación de estudiantes es importante en actividades de capacitación de personal, triage, atención de actividades burocráticas, voluntariado; pero no son considerados como una primera línea de atención en los sitios de desastre o de manejo de pacientes. Se revisa en la literatura médica la percepción de la participación de los estudiantes de medicina en desastres y pandemias y se establecen algunas de las necesidades para su capacitación y enseñanza, para que realmente puedan convertirse en una opción en los momentos de crisis.

Medical specialties' teaching is an area of health systems that deserves special consideration in light of the lessons learned from influenza and COVID-19: educational programs and implementation of the training strategies that are used must be reevaluated, since the level of training of most specialty students does not allow to consider them as personnel who can face these global problems. The number of specialization courses has exponentially grown, and their main threat is the cancellation or partial execution of their academic programs as a consequence of not implementing functional operational strategies during a contingency.

Introduction: In children with acute leukemia, gut microbiota is modified secondary to chemotherapy administration, leading to gastrointestinal side effects. Probiotics are microorganisms that can restore gut microbiota and may help alleviate gastrointestinal symptoms. The aim of this pilot study was to assess the effects of probiotic supplementation on chemotherapy-induced gastrointestinal side effects in children with acute leukemia (AL).Methods: In this randomized pilot study, patients under 17 years of age diagnosed with AL who were on remission induction or remission reinduction chemotherapy were randomly assigned to receive probiotic supplementation (a concentration of 5×109 CFU per sachet was administered at a standard dose twice daily, by mouth) or no probiotic supplementation. The primary endpoint was the prevalence of gastrointestinal side effects. Vomiting, nausea, flatulence, dyspepsia, diarrhea, constipation, abdominal pain, and abdominal distention were assessed in both groups.Results: Gastrointestinal side effects were less prevalent in the probiotic group, and 3 of the 8 gastrointestinal side effects (nausea, vomiting, and abdominal distension) significantly decreased in the probiotic group (PP=0.04); for nausea an RR of 0.5 (95% CI, 0.4-0.8;P=0.04) and for vomiting an RR of 0.4 (95% CI, 0.2-0.9;P=0.04).Conclusions: Daily supplementation withLactobacillus rhamnosusreduced chemotherapy-induced gastrointestinal side effects in children with AL.

Background: Coronary dilatation is the most important complication of Kawasaki disease (KD) and, in addition to some clinical characteristics, is common to KD and febrile exanthematous illnesses (FEIs). Objective: To assess whether children with FEI, who do not meet the criteria for KD, have changes in coronary arteries dimensions. Methods: Echocardiography was performed within the first two weeks of the disease in patients < 10 years with fever and exanthema without other KD criteria. To make a comparison with KD patients, we reviewed the echocardiograms and medical records of patients with a diagnosis of KD of the last five years. Coronary ectasia was assessed using Z scores of coronary arteries. The means of the dimensions of the coronary arteries were compared with a z test and a level of significance of 0.05 was adopted. Results: A total of 34 patients were included, 22 (64.7%) with FEI, and 12(35.2%) with a diagnosis of KD. Using the Z scores of coronary artery, a dilation of any of the coronary artery branches was observed in six (27.2%) patients with FEI. Conclusions: An important percentage of patients with FEI has coronary artery dilation.