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RESUMEN Objetivos. Determinar los cambios en las características clínicas y desenlaces intrahospitalarios de los pacientes hospitalizados por COVID-19 en un hospital privado de Caracas durante dos años de pandemia. Materiales y métodos. Estudio retrospectivo, observacional, de pacientes hospitalizados por COVID-19. Se investigó la correspondencia entre las olas de ingresos hospitalarios con las variantes circulantes del SARS-CoV-2 en la población general del Distrito Capital y estado Miranda. Resultados. Se incluyeron 1025 pacientes (569 hombres y 456 mujeres), con edad promedio de 62,9 DE: 16,2 años. Cuatro olas de ingresos hospitalarios fueron identificadas: primera (marzo-noviembre 2020) 150/1025 (14,6%) casos; segunda (diciembre-2020 a mayo-2021) 415/1025 (40,5%) casos; tercera (junio-diciembre 2021) 344/1025 (33,6%) casos; cuarta (enero-febrero 2022) 116/1025 (11,3%) casos. La edad promedio fue mayor en la cuarta ola (primera 64,0±15,7, segunda 61,4±15,8, tercera 62,1±16,5, y cuarta ola 68,5±16,4), mientras que la proporción de pacientes masculinos (primera 66,7%, segunda 58,8%, tercera 50,3%, y cuarta 44,8%), los pacientes con enfermedad grave-crítica (primera 65,3%, segunda 57%, tercera 51,7% y cuarta 44,8%), la estadía intrahospitalaria (primera 9,1±6,0, segunda 9,0±7,3, tercera 8,8±7,7, y cuarta 6,9±5,0 días), los ingresos a la UCI (primera 23,3%, segunda 15,7%, tercera 14,0%, y cuarta 11,2%; p=0,027) y la mortalidad (primera 21.8%, segunda 10,7%, tercera 9,1%, y cuarta 7,1%; p

Antimicrobial resistances are increasing worldwide, due to the misuse of antibiotic therapies in humans as well as in animals. It is expected that within a few decades multi-resistant pathogens will become the leading cause of death worldwide. The misuse of antibiotics in the neonatal period depends on the lack of predictive diagnostic tests and the peculiarity of symptoms of sepsis, which frequently are vague and unspecific at the time of presentation. Policies to prevent the emergence of antimicrobial resistances rely on a judicious use of antibiotics, on protocols and additional measures shared by health care providers. This document summarizes recent indications issued in the Emilia-Romagna subsequent to a review of the literature.

BACKGROUND: Group B Streptococcus (GBS) is a leading cause of neonatal bacterial infections. Early-onset infections have decreased in recent years but, despite considerable efforts poured into prevention, cases continue to occur. OBJECTIVES: To analyze trends and identify determining factors for the persistence of the GBS infections. To evaluate the impact of antenatal screening and intrapartum chemoprophylaxis on the clinical presentation of the infection. METHODS: A prospective cohort, population-based study has been ongoing in Emilia-Romagna (Italy) since 2003. Invasive GBS infections, observed between 2003 and 2008 in infants aged < 7 days were analyzed. RESULTS: Among 214,120 live births, 61 early-infections were observed. Fourteen infants (23.0%) were born preterm. Among 47 infants who were delivered at term, 28 were born to mothers who had no risk factors and 7 were born to mothers who had none other than GBS colonization. Forty-one women at term had been screened prenatally; among them, only 10 were documented as GBS culture-positive.Disease severity was highest in infants at lower gestational ages, but most meningitis cases were observed in term infants born to mothers who were GBS culture-negative at screening.Nine newborns had culture-proven infection despite having received intrapartum antibiotics. They were born to mothers with > or =1 obstetrical risk factors and 5 mothers had been treated during labor with macrolides. CONCLUSION: Most infections presented in infants whose mothers had been screened as GBS culture-negative. Missed opportunities for prevention contributed more than prophylaxis failures to the early-onset disease burden.

INTRODUCTION: The prevalence of maternal group-B-streptococcus (GBS) colonization and risk factors (RFs) for neonatal early-onset disease (EOD) in Europe are poorly defined. Large-scale information concerning adherence to recommendations for preventing GBS-EOD are lacking. MATERIALS AND METHODS: This was a 3-month retrospective area-based study including all regional deliveries ≥35 weeks' gestation (in 2012). The sensitivity, specificity, positive and negative predictive values, odds ratio and receiver operating characteristic (ROC) curve for intrapartum antibiotic prophylaxis (IAP) among full-term and preterm deliveries and prolonged membrane rupture (PROM) were calculated. RESULTS: Among 7133 women, 259 (3.6%) were preterm (35-36 weeks' gestation). Full-term women were 6874, and 876 (12.7%) had at least 1 RF. Most women (6495) had prenatal screening and 21.4% (1390) were GBS positive. IAP was given to 2369 (33.2%) women (preterm, n = 166; full term, n = 2203). Compared to full-term, preterm women were less likely to receive IAP when indicated (73.2% versus 90.3%, p