Publications by authors named "Cuesta G"

Introduction: There is no reliable microbiological marker to guide responses to antiviral treatment in kidney transplant recipients (KTR) with COVID-19. We aimed to evaluate the dynamics of subgenomic RNA (sgRNA) RT-PCR before and after receiving treatment with remdesivir compared with genomic RNA (gRNA) RT-PCR and its use as a surrogate marker of viral replication.

Methods: We analyzed gRNA and sgRNA at baseline and after remdesivir treatment in KTR who received remdesivir for SARS-CoV-2 infection from November 2021 to February 2022.

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  • * Compared to conventional diagnostic tools and the Biofire FilmArray ME Panel, the QIAstat-Dx ME demonstrates high sensitivity (96.43%) and specificity (95.24%) in identifying pathogens.
  • * The results indicate a strong correlation between the QIAstat-Dx ME panel and traditional methods, suggesting it is a reliable rapid-PCR technique for ME diagnosis.
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Background: We aimed to describe a cohort of hematologic patients with COVID-19 treated with antivirals early.

Methods: Non-interventional chart review study. Comparison of baseline characteristics and outcomes in high-risk hematologic patients treated with remdesivir between December 2021 and April 2022 versus those treated with nirmatrelvir/ritonavir between May and August 2022.

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Purpose: We aimed to evaluate the performance of the FilmArray (FA) meningitis/encephalitis (ME) panel. Secondarily, we analyzed the false positive (FP) and false negative (FN) results, as well as the predictive values of the technique, regarding the cerebrospinal fluid (CSF) characteristics.

Methods: FA is a multiplex real-time PCR detecting 14 of the most common ME pathogens in CSF.

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Objectives: We aimed to describe the clinical outcomes and duration of viral shedding in high-risk patients with haematological malignancies hospitalized with COVID-19 during Omicron variant predominance who received early treatment with antivirals.

Methods: We conducted a prospective observational study on high-risk haematological patients admitted in our hospital between December 2021 and March 2022. We performed detection techniques on viral subgenomic mRNAs until negative results were obtained to document active, prolonged viral replication.

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  • The study examined the epidemiology of invasive fungal infections (IFIs) in hospitalized patients over a four-year period, finding a total of 367 diagnosed cases.
  • Key risk factors included corticosteroid use (41.4%) and prior viral infection (31.3%), with the most common infections being candidemia (42.2%) and invasive aspergillosis (26.7%).
  • The overall mortality rate at 12 weeks post-diagnosis was 32.2%, highlighting the need for improved awareness and aggressive treatment methods among healthcare providers, especially given the increasing occurrences of resistant fungal strains.
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  • Remdesivir (RDV) was the first FDA-approved antiviral for treating severe COVID-19 by inhibiting SARS-CoV-2 replication through targeting an essential protein (nsp12) in the virus.
  • In a study, 38.3% of patients showed no response to RDV treatment, with specific genetic mutations detected in non-responders, indicating possible pathways to RDV resistance.
  • The findings highlight the need for ongoing monitoring of genetic variations in the virus, especially among immunosuppressed patients, to inform treatment strategies and health surveillance efforts as RDV continues to be used.
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Background: There is no reliable microbiological marker to guide the indication and the response to antiviral treatment in patients with coronavirus disease 2019 (COVID-19). We aimed to evaluate the dynamics of subgenomic RNA (sgRNA) in patients with COVID-19 before and after receiving treatment with remdesivir.

Methods: We included consecutive patients admitted for COVID-19 who received remdesivir according to our institutional protocol and accepted to participate in the study.

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Purpose: Assess the impact of viral load estimated by cycle threshold (Ct) of reverse transcription real time-polymerase chain reaction (rRT-PCR) and the days from symptoms onset on mortality in hospitalized patients with COVID19.

Methods: Retrospective observational study of 782 patients with a positive rRT-PCR from a nasopharyngeal swab was performed within the first 24 h from admission. Demographic data, clinical manifestations and laboratory parameters were collected.

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Introduction: Increased mortality has been reported in the Latin American population. The objective is to compare the clinical characteristics and outcome of Latin American and Spanish populations in a cohort of patients hospitalized with COVID-19 during the first year of the pandemic.

Methods: We retrospectively analysed all the Latin American patients (born in South or Central America) hospitalized in our centre from February 2020 to February 2021 and compared them with an age- and gender-matched group of Spanish subjects.

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Many autistic children and young people need extra support with social skills. Social skills programmes, such as LEGO® based therapy (LBT), are commonly used to help with these difficulties. The aim of this study was to examine the acceptability of LBT using qualitative interviews and questionnaires with facilitators and parents/guardians on behalf of autistic children and young people.

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Dexamethasone and tocilizumab have been associated with reduction in mortality, however, the beneficial effect is not for all patients and the impact on viral replication is not well defined. We hypostatized that C-reactive protein (CRP) could help in the identification of patients requiring anti-inflammatory therapy. Patients admitted for > 48 h in our hospital for a confirmed or suspected infection by SARS-CoV-2 from February 2020 to February 2021 were retrospectively evaluated.

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  • Diagnosing SARS-CoV-2 has been challenging, and while RT-PCR is the standard method, there's a need for faster and simpler tests for early case identification.
  • This study assessed the performance of six commercial rapid antigen tests using 130 nasopharyngeal swab samples previously tested by RT-PCR, showing sensitivities between 65% and 79% and perfect specificity.
  • Key findings indicated that sensitivity was higher for samples from patients with lower RT-PCR cycle threshold values and during the first week of symptoms, with the Siemens test proving most effective for high viral loads, highlighting the importance of rapid testing in managing COVID-19.
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Objectives: This study aimed to investigate whethehr the diversity and composition of the intestinal microbiota determines the risk of multidrug-resistant organism (MDRO) acquisition, infection, and mortality in patients admitted to a liver intensive care unit (ICU).

Methods: This prospective study included patients admitted to a 12-bed ICU between July and December 2018. Rectal swabs to detect MDRO intestinal colonization were obtained at ICU admission and weekly thereafter during the ICU stay.

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Objectives: To assess the cost-effectiveness of LEGO-based therapy compared with usual support.

Design: Cost-utility analysis alongside randomised control trial.

Setting: Mainstream primary and secondary schools in the UK.

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The immense impact of the COVID-19 pandemic on health systems has motivated the scientific community to search for clinical prognostic factors for SARS-CoV-2 infection. Low cycle threshold values (Ct) of diagnostic real-time RT-PCR assays in hospitalized patients have been associated with a poor prognosis in several studies, whereas other studies did not find this association. We explored whether SARS-CoV-2 Ct values at diagnosis were associated with a poor outcome (admission to hospital and death) in 604 community patients diagnosed at primary health centers.

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Determining SARS-CoV-2 viral infectivity is crucial for patient clinical assessment and isolation decisions. We assessed subgenomic RNA (sgRNA) as a surrogate marker of SARS-CoV-2 infectivity in SARS-CoV-2-positive reverse transcription PCR (RT-PCR) respiratory samples ( = 105) in comparison with viral culture as the reference standard for virus replication. sgRNA and viral isolation results were concordant in 99/105 cases (94%), indicating highly significant agreement between the two techniques (Cohen's kappa coefficient 0.

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We aimed to ascertain the interaction and effects of combined reactivations of BK virus and cytomegalovirus on kidney graft function. All consecutive kidney transplant recipients (KTR) between 2003 and 2016 were included. Of 1976 patients who received a kidney transplant, 23 (1.

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Background: The use of remdesivir has demonstrated a significant reduction in the time to recovery in patients with COVID-19. However, the impact on mortality is still controversial. Therefore, it is necessary to evaluate whether there is a specific subgroup of patients in whom an active antiviral therapy also reduces the mortality.

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Background: Auditory naming tests are superior to visual confrontation naming tests in revealing word-finding difficulties in many neuropathological conditions.

Objective: To delineate characteristics of auditory naming most likely to reveal anomia in patients with dementia, and possibly improve diagnostic utility, we evaluated a large sample of patients referred with memory impairment complaints.

Methods: Patients with dementia (N = 733) or other cognitive impairments and normal individuals (N = 69) were evaluated for frequency of impairment on variables of the Auditory Naming Test (ANT) of Hamberger & Seidel versus the Boston Naming Test (BNT).

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A novel actinomycete, designated PA3(T), was isolated from an oil refinery wastewater treatment plant, located in Palos de la Frontera, Huelva, Spain, and characterized taxonomically by using a polyphasic approach. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate formed a distinct subclade in the Pseudonocardia tree together with Pseudonocardia asaccharolytica DSM 44247(T). The chemotaxonomic properties of the isolate, for example, the presence of MK-8 (H(4)) as the predominant menaquinone and iso-C(16:0) as the major fatty acid, are consistent with its classification in the genus Pseudonocardia.

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Objectives: In Nicaragua, 30% of current morbidities are associated with tobacco smoking. Tobacco control policy measures have been initiated in this Central American country; however, the population does not have a complete understanding of the long-term consequences of tobacco use. The aim of this study was to compare the direct medical costs of smoking cessation therapies with varenicline, bupropion, nicotine replacement therapy, and unaided cessation in Nicaragua over 5 time horizons: 2, 5, 10, and 20 years, and lifetime.

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Objectives: In Central American countries, the economic burden of tobacco has not been assessed. In Costa Rica, a study demonstrated that tobacco-related diseases represent high costs for the health care system. The aim of this study was to assess the cost-effectiveness of varenicline compared with other existing strategies for smoking cessation within a 10-year time horizon in an adult population cohort from Central American and Caribbean countries using the health care payer's perspective.

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