CMV Infection Risk Factors and Viral Dynamics After Valganciclovir Prophylaxis: 10 Years of Experience in Lung Transplant Recipients.

(1) The prevention of cytomegalovirus (CMV) in lung transplant recipients (LTx) is based on the administration of VGC for a period of 6-12 months, but there is little information on the premature discontinuation of the drug. Our objective was to evaluate the reasons for early cessation of VGC and the dynamics of CMV replication after discontinuation. (2) We carried out a retrospective study of LTx on VGC prophylaxis according to guidelines, with an outpatient follow-up period of >90 days.

Breakthrough invasive fungal infection among patients with haematologic malignancies: A national, prospective, and multicentre study.

Objectives: We describe the current epidemiology, causes, and outcomes of breakthrough invasive fungal infections (BtIFI) in patients with haematologic malignancies.

Methods: BtIFI in patients with ≥ 7 days of prior antifungals were prospectively diagnosed (36 months across 13 Spanish hospitals) according to revised EORTC/MSG definitions.

Results: 121 episodes of BtIFI were documented, of which 41 (33.

Sequential oral antibiotic in uncomplicated Staphylococcus aureus bacteraemia: a propensity-matched cohort analysis.

Objectives: We aimed to analyse the efficacy and safety of oral sequential therapy (OST) in uncomplicated Staphylococcus aureus bacteraemia (SAB).

Methods: Single-centre observational cohort at a tertiary hospital in Spain, including all patients with the first SAB episode from January 2015 to December 2020. We excluded patients with complicated SAB and those who died during the first week.

Faecal Microbiota Transplantation is a simple, effective and safe treatment in the management of C. difficile infection in daily clinical practice.

Introduction: Faecal microbiota transplantation (FMT) is a treatment supported by wide scientific evidence and proved to be very effective in the management of Clostridioides difficile infection (CDI). The objective of this study is to analyze its effectiveness and safety in a real clinical practice setting.

Methods: Retrospective, single-center and descriptive observational study in which all FMT performed between May 2016 and December 2020 were included.

Evidence of Fluconazole-Resistant Candida parapsilosis Genotypes Spreading across Hospitals Located in Madrid, Spain and Harboring the Y132F ERG11p Substitution.

We have been monitoring the antifungal resistance in Candida parapsilosis isolates collected from inpatients at Madrid metropolitan area hospitals for the last 3 years. The study aimed to elucidate the presence of fluconazole-resistant C. parapsilosis genotypes in Madrid.

Impact of the COVID-19 Pandemic on the Clinical Profile of Candidemia and the Incidence of Fungemia Due to Fluconazole-Resistant .

Severely ill COVID-19 patients are at high risk of nosocomial infections. The aim of the study was to describe the characteristics of candidemia during the pre-pandemic period (January 2019−February 2020) compared to the pandemic period (March 2020−September 2021). Antifungal susceptibilities were assessed using the EUCAST E.

First report of Brevundimonas aurantiaca human infection: infective endocarditis on aortic bioprostheses and supracoronary aortic graft acquired by water dispenser of domestic refrigerator.

Infective endocarditis (IE) is a feared life-threatening complication that requires a multidisciplinary approach. Although a variety of microorganisms have caused IE, Brevundimonas aurantiaca human infection has never been reported previously. To our knowledge, this is the first reported case of endocarditis and human infection due to B.

Unreliability of Clinical Prediction Rules to Exclude without Echocardiography Infective Endocarditis in Bacteremia.

Background: It is unclear whether the use of clinical prediction rules is sufficient to rule out infective endocarditis (IE) in patients with bacteremia (SAB) without an echocardiogram evaluation, either transthoracic (TTE) and/or transesophageal (TEE). Our primary purpose was to test the usefulness of PREDICT, POSITIVE, and VIRSTA scores to rule out IE without echocardiography. Our secondary purpose was to evaluate whether not performing an echocardiogram evaluation is associated with higher mortality.

Effective definition of low humoral response to Clostridioides difficile infection.

Background: Determination of the humoral response to Clostridioides difficile (CD) toxins could be of great value in the management of patients with CD infection (CDI).

Methods: A prospective study was conducted on the clinical characteristics and humoral response in patients with CDI. Determination of ELISA IgG CD anti-toxin B (tgcBiomics, Germany) was performed.

Hospital-acquired infective endocarditis during Covid-19 pandemic.

Background: The COVID pandemic has had a major impact on healthcare in hospitals, including the diagnosis and treatment of infections. Hospital-acquired infective endocarditis (HAIE) is a severe complication of medical procedures that has shown a progressive increase in recent years.

Objectives: To determine whether the incidence of HAIE during the first two months of the epidemic (March-April 2020) was higher than previously observed and to describe the clinical characteristics of these cases.

A retrospective validation of different scores of guideline adherence and infectious diseases consultation on candidaemia: The higher, the better.

Background: Recently, several scores to quantify compliance with the guidelines in candidaemia management (EQUAL, GEMICOMED, Valerio) have been developed. Evidence supporting the association of these scores to the prognosis is scarce. We aim to evaluate the performance of these candidaemia guideline adherence scores to predict candidaemia outcome.

Azole and Amphotericin B MIC Values against : High Agreement between Spectrophotometric and Visual Readings Using the EUCAST EDef 9.3.2 Procedure.

The EUCAST EDef 9.3.2 procedure recommends visual readings of azole and amphotericin B MICs against spp.

Genotypic and Phenotypic Characteristics of Prosthetic Joint Infections: Insight on the Pathogenesis and Prognosis of a Multicenter Prospective Cohort.

Background: is the leading cause of prosthetic joint infection (PJI). Beyond the antibiogram, little attention has been paid to the influence of deep microbiological characteristics on patient prognosis. Our aim was to investigate whether microbiological genotypic and phenotypic features have a significant influence on infection pathogenesis and patient outcome.

PET/CT with F-FDG in suspected intracardiac device-related infections: analysis of performance and diagnostic usefulness.

Introduction And Objectives: Cardiac device-related infections (CDRI) may be life-threatening and require early and accurate diagnosis. The aims of this study were to analyze the performance of positron emission tomography-computed tomography (PET/CT) in suspected CDRI, to assess changes to the initial diagnosis, and to identify a clinical subgroup deriving the greatest benefit from this imaging modality.

Methods: Retrospective study including patients evaluated by PET/CT for suspected CDRI from 2011 to 2018.

First national survey of the diagnosis of Helicobacter pylori infection in Clinical Microbiology Laboratories in Spain.

Introduction: The aim of this study was to know, through a national survey, the methods and techniques used for the diagnosis of Helicobacter pylori (Hp) in the different Clinical Microbiology Services/Laboratories in Spain, as well as antibiotic resistance data.

Methods: The survey requested information about the diagnostic methods performed for Hp detection in Clinical Microbiology laboratories, including serology, stool antigen, culture from gastric biopsies, and PCR. In addition, the performance of antibiotic susceptibility was collected.

Clinical and Laboratory Development of Echinocandin Resistance in : Molecular Characterization.

The pathogenic yeast has become a public health issue due to the increasing number of echinocandin resistant clinical strains reported. In this study, acquisition and development of resistance to this antifungal class were studied in serial isolates from five patients admitted in two Spanish hospitals with a resistant profile against echinocandins associated with different mutations in hot-spot 1 of gene. For two of these patients susceptible wild-type isolates obtained prior to resistant ones were also investigated.

Impact of Pseudomonas aeruginosa bacteraemia in a tertiary hospital: Mortality and prognostic factors.

Background And Objectives: Pseudomonas aeruginosa bacteraemia is associated with a very high mortality, conditioned by comorbidity, source, severity of the episode and lack of adequate treatment. The aim of the study is to know the mortality and prognostic factors of bacteraemia by P.aeruginosa in our hospital.

Collection, transport and general processing of clinical specimens in Microbiology laboratory.

The interpretation and the accuracy of the microbiological results still depend to a great extent on the quality of the samples and their processing within the Microbiology laboratory. The type of specimen, the appropriate time to obtain the sample, the way of sampling, the storage and transport are critical points in the diagnostic process. The availability of new laboratory techniques for unusual pathogens, makes necessary the review and update of all the steps involved in the processing of the samples.

Epidemiology and prognosis of candidaemia in elderly patients.

The aim of the study was to analyse the epidemiology and prognosis of candidaemia in elderly patients. We performed a comparison of clinical presentation of candidaemia according to age and a study of hazard factors within a prospective programme performed in 29 hospitals. One hundred and seventy-six episodes occurred in elderly patients (>75 years), 227 episodes in middle-aged patients (61-75 years) and 232 episodes in younger patients (16-60 years).

Risk factors, clinical presentation and prognosis of mixed candidaemia: a population-based surveillance in Spain.

The low incidence of mixed candidaemia (MC) may have precluded a better knowledge of its clinical presentation. The aim of the study was to analyse the risk factors, clinical presentation and prognosis of MC episodes. A comparison between MC and monomicrobial candidaemia within a prospective programme on candidaemia was performed in 29 hospitals between April 2010 and May 2011.