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Rev Esp Quimioter 2023;36(Suppl.1):5-8

The microbiology of sepsis is more than the application of new technologies in diagnosis

MARIA NIEVES LARROSA ESCARTÍN, MIGUEL ÁNGEL MARTÍNEZ-LÓPEZ, PATRICIA NADAL-BARÓN

Published: 24 November 2023

http://www.doi.org/10.37201/req/s01.02.2023

ABSTRACT
Adequate and rapid microbiological diagnosis of sepsis is essential for correct treatment, having a direct impact on patient prognosis. Clinical Microbiology Services must adapt fast circuits that allow prioritizing and individualizing the diagnosis of these patients. The measures adopted should not be based solely on the incorporation of new technologies but, to a large extent, on ensuring accurately collection and processing of samples, avoiding unnecessary losses of time in processing and ensuring that the information derived from this process adequately reaches the prescribing physician.

Rev Esp Quimioter 2023; 36(Suppl.1):5-8 [Full-text PDF]


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Rev Esp Quimioter 2023;36(Suppl.1):2-4

Enterococcus spp. and Streptococcus spp. bloodstream infections: epidemiology and therapeutic approach

ROSA BLANES HERNÁNDEZ, MARINO BLANES JULIÁ

Published: 24 November 2023

http://www.doi.org/10.37201/req/s01.01.2023

ABSTRACT
Streptococcus spp. and Enterococcus spp. are frequent etiologies of bloodstream infection and endocarditis. In recent years, the incidence of Enterococcus spp. has been increasing, especially with nosocomial involvement, and with a high mortality rate. In this entity, the risk of endocarditis and its relationship with colorectal neoplastic pathology remains to be clarified, in order to establish indications for echocardiography and colonoscopy. In the case of Streptococcus spp., the risk of endocarditis depends on the species and the mortality rates are usually lower. Finally, in recent years, the treatment of endocarditis has been directed towards oral consolidation regimens and new long-term antibiotic treatments.

Rev Esp Quimioter 2023; 36(Suppl.1):2-4 [Full-text PDF]


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Rev Esp Quimioter 2023;36(Suppl.1):1

Introduction to XIII Updating Course of Antimicrobials and Infectious Disease

FRANCISCO JAVIER CANDEL

Published: 24 November 2023

http://www.doi.org/10.37201/req/s01.00.2023

Rev Esp Quimioter 2023; 36(Suppl.1):1 [Full-text PDF]


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Rev Esp Quimioter 2024; 37(1): 97-99

Cavitary pneumonia and empyema thoracis caused by multidrug resistant Nocardia otitidiscaviarum in an elderly patient

IRIS SHARON PÉREZ RAMOS, MARÍA LUISA GURRUCHAGA YANES, DOMINGO FERNÁNDEZ VECILLA, UDANE OIARTZABAL ELORRIAGA, MIREN JOSEBE UNZAGA BARAÑANO, JOSÉ LUIS DÍAZ DE TUESTA DEL ARCO

Published: 14 November 2023

LETTER TO THE EDITOR

http://www.doi.org/10.37201/req/042.2023

Rev Esp Quimioter 2024; 37(1): 97-99 [Full-text PDF]


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Rev Esp Quimioter 2024; 37(1): 1-16

Unresolved issues in the diagnosis of catheter related candidemia: A position paper

ANA SORIANO-MARTÍN, PATRICIA MUÑOZ, JULIO GARCÍA-RODRÍGUEZ, RAFAEL CANTÓN, ANTONIO VENA, MATTEO BASSETTI, EMILIO BOUZA

Published: 13 November 2023

http://www.doi.org/10.37201/req/112.2023

The incidence and recent trends of candidemia and the contribution of the COVID-19 pandemic to its evolution are not well documented. The catheter is a major focus of Candida spp. infections, but the methods used to confirm the origin of candidemia are still based on the data generated for bacterial infection. The presence of Candida spp. on the tip of a removed catheter is the gold standard for confirmation but it is not always possible to remove it. Conservative methods, without catheter removal, have not been specifically studied for microorganisms whose times of growth are different from those of bacteria and therefore these results are not applicable to candidemia. The different Candida species do not have a particular tropism for catheter colonization and fungal biomarkers have not yet been able to contribute to the determination of the origin of candidemia. Techniques such Candida T2 Magnetic Resonance (T2MR) has not yet been applied for this purpose. Finally, there is not yet a consensus of how to proceed when Candida spp. is isolated from an extracted catheter and blood cultures obtained from simultaneous peripheral veins are negative. In this lack of firm data, a group of experts has formulated a series of questions trying to answer them based on the literature, indicating the current deficiencies and offering their own opinion. All authors agree with the conclusions of the manuscript and offer it as a position and discussion paper.

Rev Esp Quimioter 2024; 37(1): 1-16 [Full-text PDF]


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Rev Esp Quimioter 2024; 37(1): 93-96

Concerning the presumptive identification of Candida kefyr on Uriselect™4 agar

ESTHER GÓMEZ-VICENTE, JOSÉ MARÍA NAVARRO-MARÍ, ENRIQUE RODRÍGUEZ-GUERRERO, ANTONIO ROSALES-CASTILLO, JOSÉ GUTIÉRREZ-FERNÁNDEZA

Published: 6 November 2023

http://www.doi.org/10.37201/req/068.2023

Introduction. Non-albicans Candida species, such as Candida kefyr, are emerging pathogens. Chromogenic media are highly useful for the diagnosis of urinary tract infections (UTIs). The aim was to describe the behavior of this specie on a non-specific chromogenic medium.
Material and methods. A retrospective study of cases of candiduria detected in the Microbiology laboratory of the Virgen de las Nieves Hospital in Granada (Spain) between 2016 and 2021 (N=2,130). Urine samples were quantitatively seeded on non-selective UriSelect™4 chromogenic agar.
Results. Between 2016 and 2021, C. kefyr was the seventh most frequent Candida species responsible for candiduria in our setting (n=15). The macroscopic appearance of C. kefyr colonies, punctiform and bluish, allowed the direct identification of these microorganisms.
Conclusions. This study provides the first description of the specific behavior of C. kefyr on UriSelect™4 agar, which differentiates it from other Candida species based on its enzymatic characteristics.

Rev Esp Quimioter 2024; 37(1): 93-96 [Full-text PDF]


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Rev Esp Quimioter 2023; 36(6): 562-583

Tuberculosis in Spain: An opinion paper

SANTIAGO MORENO GUILLÉN, FERNANDO RODRÍGUEZ-ARTALEJO, JULIÁN RUIZ-GALIANA, RAFAEL CANTÓN, PILAR DE LUCAS RAMOS, ALEJANDRA GARCÍA-BOTELLA, ALBERTO GARCÍA-LLEDÓ, TERESA HERNÁNDEZ-SAMPELAYO, JAVIER GÓMEZ-PAVÓN, JUAN GONZÁLEZ DEL CASTILLO, MARI CRUZ MARTÍN-DELGADO, FRANCISCO JAVIER MARTÍN SÁNCHEZ, MANUEL MARTÍNEZ-SELLÉS, JOSÉ MARÍA MOLERO GARCÍA, BEGOÑA SANTIAGO, JOSÉ ANTONIO CAMINERO, CARLOS BARROS, DARÍO GARCÍA DE VIEDMA, CARLOS MARTÍN, EMILIO BOUZA

Published: 2 November 2023

http://www.doi.org/10.37201/req/115.2023

This document is the result of the deliberations of the Committee on Emerging Pathogens and COVID-19 of the Illustrious Official College of Physicians of Madrid (ICOMEM) regarding the current situation of tuberculosis, particularly in Spain. We have reviewed aspects such as the evolution of its incidence, the populations currently most exposed and the health care circuits for the care of these patients in Spain. We have also discussed latent tuberculosis, the reality of extrapulmonary disease in the XXI century and the means available in daily practice for the diagnosis of both latent and active forms. The contribution of molecular biology, which has changed the perspective of this disease, was another topic of discussion. The paper tries to put into perspective both the classical drugs and their resistance figures and the availability and indications of the new ones. In addition, the reality of direct observation in the administration of antituberculosis drugs has been discussed. All this revolution is making it possible to shorten the treatment time for tuberculosis, a subject that has also been reviewed. If everything is done well, the risk of relapse of tuberculosis is small but it exists. On the other hand, many special situations have been discussed in this paper, such as tuberculosis in pediatric age and tuberculosis as a cause for concern in surgery and intensive care. The status of the BCG vaccine and its present indications as well as the future of new vaccines to achieve the old dream of eradicating this disease have been discussed. Finally, the ethical and medicolegal implications of this disease are not a minor issue and our situation in this regard has been reviewed.

Rev Esp Quimioter 2023; 36(6): 562-583 [Full-text PDF]


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Rev Esp Quimioter 2024; 37(1): 69-77

In vitro activity of cefiderocol and other newly approved antimicrobials against multi-drug resistant Gram-negative pathogens recovered in intensive care units in Spain and Portugal

DESIREE GIJÓN, MARÍA GARCÍA-CASTILLO, MARÍA DEL CARMEN FERNÁNDEZ-LÓPEZ, GERMÁN BOU, MARÍA SILLER, JORGE CALVO-MONTES, CRISTINA PITART, JORDI VILA, NURIA TORNO, CONCEPCIÓN GIMENO, HUGO CRUZ, HELENA RAMOS, XAVIER MULET, ANTONIO OLIVER, PATRICIA RUIZ-GARBAJOSA, RAFAEL CANTON

Published: 26 October 2023

http://www.doi.org/10.37201/req/098.2023

Introduction. The antimicrobial resistance is a significant public health threat, particularly for healthcare-associated infections caused by carbapenem-resistant Gram-negative pathogens which are increasingly reported worldwide. The aim of this study was to provide data on the in vitro antimicrobial activity of cefiderocol and that of commercially available comparator antibiotics against a defined collection of recent clinical multi-drug resistant (MDR) microorganisms, including carbapenem resistant Gram-negative bacteria collected from different regions in Spain and Portugal.
Material and methods. A total of 477 clinical isolates of Enterobacterales, Pseudomonas aeruginosa, Acinetobacter baumannii and Stenotrophomonas maltophilia were prospectively (n=265) and retrospectively (n=212) included (2016-2019). Susceptibility testing was performed using standard broad microdilution and results were interpreted using CLSI-2021 and EUCAST-2021 criteria.
Results. Overall, cefiderocol showed a good activity against Enterobacterales isolates, being 99.5% susceptible by CLSI and 94.5% by EUCAST criteria. It also demonstrated excellent activity against P. aeruginosa and S. maltophilia isolates, all being susceptible to this compound considering CLSI breakpoints. Regarding A. baumannii (n=64), only one isolate was resistant to cefiderocol.
Conclusions. Our results are in agreement with other studies performed outside Spain and Portugal highlighting its excellent activity against MDR gram-negative bacteria. Cefiderocol is a therapeutic alternative to those available for the treatment of infections caused by these MDR bacteria.

Rev Esp Quimioter 2024; 37(1): 69-77 [Full-text PDF] [Supplementary material PDF]


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Rev Esp Quimioter 2023; 36(6): 597-603

Evolution of the serotypes causing invasive pneumococcal disease along 2008-2022 in a Level 2 Public Hospital of the Madrid Region, in relation to their inclusion in different conjugate vaccines

GLORIA ZARAGOZA VARGAS, JUANA CACHO CALVO, RODRIGO MARTÍNEZ-ARCE, DAVID MOLINA ARANA, BELÉN RAMOS BLÁZQUEZ, MARTA PÉREZ ABELEDO, JUAN CARLOS SANZ MORENO

Published: 24 October 2023

http://www.doi.org/10.37201/req/034.2023

Introduction. The use of conjugate vaccines against Streptococcus pneumoniae originates changes in the invasive pneumococcal disease (IPD). The aim of this study was to in vestigate the evolution of S. pneumoniae serotypes isolated in the Hospital Universitario de Getafe between 2008 and 2022.
Material and Methods. 313 of S. pneumoniae strains were studied. Serotyping was carried out by latex agglutination (Pneumotest-latex) and the Quellung reaction. In addition, the minimal inhibitory concentration (MIC) was determined against penicillin, erythromycin and levofloxacin by the concentration gradient method (E-test) according the EUCAST breakpoints.
Results. The most frequent serotypes throughout the study period were 8, 3, 19A, 1, 11A and 22F corresponding to 46.6% of the isolates. Along 2008-2012 the serotypes 3, 1, 19A, 7F, 6C and 11A represented altogether 53.6% of the isolates. Between 2013 and 2017 the serotypes 3, 8, 12F, 19A, 22F and 19F grouped 51% of the isolates. During 2018-2022 the serotypes 8, 3, 11A, 15A, 4 and 6C included the 55.5% of the cases. In total 5 strains (1.6%) were penicillin resistant, 64 (20.4%) erythromycin resistant and 11 (3.5%) levofloxacin resistant. The MIC50 and MIC90 levels maintained stables along the time.
Conclusion. The conjugate vaccines use with different serotype coverage conditioned a decrease of the vaccine-included and an increase of non-covered. Despite these changes, the global antimicrobial susceptibility patterns to erythromycin and levofloxacin maintained relatively stables. The resistance a penicillin was low, not finding this type of resistant strains in the last study period.

Rev Esp Quimioter 2023; 36(6): 597-603 [Texto completo PDF]


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Rev Esp Quimioter 2023; 36(6): 645-647

Definiendo nuevos escenarios terapéuticos para oritavancina: severa infección bacteriémica de piel y partes blandas por Staphylococcus aureus en una paciente oncológica intensamente inmunodeprimida

JAVIER MORENO IZARRA, ANNE BRUNST, JOSE ANTONIO CARMONA ÁLVAREZ, FRANCISCO ARANDA, JUAN MANUEL MÁRTIR ALARIO

Published: 11 October 2023

LETTER TO THE EDITOR

http://www.doi.org/10.37201/req/055.2023

Rev Esp Quimioter 2023; 36(6): 645-647 [Texto completo PDF]


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