Etiología de las infecciones del sitio quirúrgico en pacientes intervenidos de cirugía cardiaca

ResumenIntroducciónLas infecciones del sitio quirúrgico (ISQ) en pacientes sometidos a cirugía cardiaca constituyen una complicación relevante que puede incrementar la estancia hospitalaria y la morbimortalidad.MétodoAnálisis de las ISQ tras cirugía cardiaca en pacientes del estudio de prevalencia de infecciones en hospitales españoles (EPINE) durante el período 1999-2006.ResultadosDurante el período de tiempo considerado se diagnosticaron 189casos de ISQ en pacientes sometidos a cirugía cardiaca. Noventa y cinco pacientes (50,3%) habían sido sometidos a cirugía valvular y 94 (49,7%) a bypass coronario. La edad media fue de 62,8años (mediana 69). Las ISQ que se evidenciaron fueron infección incisional superficial (69pacientes, 37%), incisional profunda (68enfermos, 36%) y de órgano o espacio (52enfermos, 27%). Se aislaron 180especies bacterianas en los pacientes analizados. Los microorganismos aislados con más frecuencia fueron estafilococos coagulasa negativo (37%), Staphylococcus aureus sensible a meticilina (15,5%), S.aureus resistente a meticilina (6,6%), Enterococcus spp, (6,1%), Escherichia coli (5%), Enterobacter cloacae (5%) y Serratia marcescens (4,4%). No se detectaron diferencias significativas en la etiología al comparar casos de ISQ tras cirugía valvular y cirugía coronaria ni al hacerlo entre infecciones incisionales e infecciones de órgano o espacio.ConclusiónLos estafilococos coagulasa negativos y S.aureus produjeron la mayoría de ISQ tras cirugía cardiaca. No hubo diferencias en la etiología en relación con el tipo de intervención ni con la profundidad de la infección.AbstractIntroductionSurgical site infections (SSIs) in patients undergoing cardiac surgery are a significant complication that causes increased hospital stay and morbi-mortality.MethodAnalysis of SSIs after cardiac surgery in patients included in the EPINE study (study of the prevalence of infections in Spanish hospitals) during the period 1999-2006.ResultsDuring the considered period it was detected 189cases of SSIs in patients undergoing cardiac surgery. Ninety-five patients (50.3%) had undergone heart valve surgery and 94patients (49.7%) had undergone coronary bypass. The mean age was 62.8years (median 69). SSIs that were observed consisted in superficial incisional infection (69patients, 37%), deep incisional (68patients, 36%) and organ or space (52patients, 27%). One hundred eighty bacterial species were isolated in these patients. The most frequently isolated microorganisms were coagulase-negative staphylococci (37%), methicillin sensitive Staphylococcus aureus (15.5%), methicillin resistant S.aureus (6.6%), Enterococcus spp (6.1%), Escherichia coli (5%), Enterobacter cloacae (5%) and Serratia marcescens (4.4%). There were no significant differences in etiology when comparing cases of SSI after valve surgery and coronary bypass surgery or did between incisional infections and organ or space infections.ConclusionCoagulase-negative staphylococci and S.aureus caused the majority of SSIs after cardiac surgery. There were no differences in the etiology in relation to the type of surgery or the depth of the infection

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. Patients were classified into the OST group (patients who received oral therapy after initial intravenous antibiotic therapy [IVT]), and IVT group (patients who received exclusively IVT). We performed a propensity-score matching to balance baseline differences. The primary composite endpoint was 90-day mortality or microbiological failure. Secondary endpoints included 90-day SAB relapse. Results: Out of 407 SAB first episodes, 230 (56.5%) were included. Of these, 112 (n = 48.7%) received OST and 118 (51.3%) IVT exclusively. Transition to oral therapy was performed after 7 days (interquartile range, 4–11). The primary endpoint occurred in 10.7% (11/112) in OST vs. 30.5% (36/118) in IVT (p < 0.001). SAB relapses occurred in 3.6% (4/112) vs. 1.7% (2/118) (p 0.436). None of the deaths in OST were related to SAB or its complications. After propensity-score matching, the primary endpoint was not more frequent in the OST group (relative risk, 0.42; 95% CI, 0.22–0.79). Ninety-day relapses occurred similarly in both groups (relative risk, 1.35; 95% CI, 0.75–2.39). Discussion: After an initial intravenous antibiotic, patients with uncomplicated SAB can safely be switched to oral antibiotics without apparent adverse outcomes. This strategy could save costs and complications of prolonged hospital stays. Prospective randomized studies are needed

Post-mortem findings in Spanish patients with COVID-19; a special focus on superinfections

IntroductionWhole-body autopsies may be crucial to understand coronavirus disease 2019 (COVID-19) pathophysiology. We aimed to analyze pathological findings in a large series of full-body autopsies, with a special focus on superinfections. MethodsThis was a prospective multicenter study that included 70 COVID-19 autopsies performed between April 2020 and February 2021. Epidemiological, clinical and pathological information was collected using a standardized case report form. ResultsMedian (IQR) age was 70 (range 63.75-74.25) years and 76% of cases were males. Most patients (90%,) had at least one comorbidity prior to COVID-19 diagnosis, with vascular risk factors being the most frequent. Infectious complications were developed by 65.71% of the patients during their follow-up. Mechanical ventilation was required in most patients (75.71%) and was mainly invasive. In multivariate analyses, length of hospital stay and invasive mechanical ventilation were significantly associated with infections (p = 0.036 and p = 0.013, respectively). Necropsy findings revealed diffuse alveolar damage in the lungs, left ventricular hypertrophy in the heart, liver steatosis and pre-infection arteriosclerosis in the heart and kidneys. ConclusionOur study confirms the main necropsy histopathological findings attributed to COVID-19 in a large patient series, while underlining the importance of both comorbid conditions and superinfections in the pathology

Determining the usefulness of systematic 18F-FDG PET/CT for the management of invasive fungal infection (PETIFI project): a prospective national multicentre cohort study protocol

Introduction The evaluation of staging and activity of invasive fungal infection (IFI) is used to adjust the type and duration of antifungal therapy (AT). Typically anatomy-based imaging is used. Positron emission tomography/CT with 18F-fluorodeoxyglucose (18F-FDG PET/CT) not only evaluates more than one body area in one session, but adds functional information to the anatomic data provided by usual imaging techniques and can potentially improve staging of IFI and monitoring of the response to therapy. Our objective is to analyse the impact of the systematic use of 18F-FDG PET/CT in IFI diagnostic and therapeutic management.Methods and analysis Multicentre prospective cohort study of IFI with performance of systematic 18F-FDG PET/CT at diagnosis and follow-up that will be carried out in 14 Spanish tertiary hospitals. It is planned to include 224 patients with IFI over a 2-year study period. Findings and changes in management before and after 18F-FDG PET/CT will be compared. Additionally, the association of initial quantitative 18F-FDG PET/CT parameters with response to therapy will be evaluated.The primary endpoint is to compare the yield of 18F-FDG PET/CT with standard management without 18F-FDG PET/CT in IFI at initial assessment (staging) and in monitoring the response to treatment.The impact of the results of 18F-FDG PET/CT on the diagnostic-therapeutic management of patients with IFI (added value), as well as the prognostic ability of different quantification parameters of 18F-FDG PET/CT will be secondary endpoints.Ethics and dissemination The Clinical Research Ethics Committee of Puerta de Hierro-Majadahonda University Hospital approved the protocol of the study at the primary site. We plan to publish the results in high-impact journals.Trial registration number NCT05688592

Risk of endocarditis among patients with coagulase-negative Staphylococcus bacteremia

Abstract Coagulase-negative staphylococci (CoNS) are currently considered typical microorganisms causing infective endocarditis (IE) in patients with prosthetic valves. The objective was to determine variables associated with IE in patients with CoNS bacteremia. We performed an analysis of the clinical characteristics of patients with CoNS bacteremia admitted to a university hospital in Madrid (Spain) from 2021 to December 2022 according to the occurrence of IE. This study is an evaluation of a bacteremia registry. During the study period, 106 patients with CoNS bacteremia were detected. In 85 patients an echocardiogram was performed during hospital admission to rule out IE. Among them, 12 episodes were detected that met IE criteria (14.2%). Of the 6 patients with heart valve prostheses, 5 patients (83.3%) had IE (p < 0.001). Patients with IE more frequently had positive blood cultures more than 12 h after the first draw (58.3% versus 13.4%; p < 0.001). There was a tendency to associate community-acquired bacteremia and to that all blood culture bottles obtained were positive with an increased risk of IE (p = 0.091 and p = 0,057, respectively). Attributable mortality to infection was higher in patients with IE relative to all other patients (16.7% vs. 0%; p = 0.033). The multivariable analysis included having valve prosthesis and persistent bacteremia for more than 12 h. Both were independently associated with IE: valve prosthesis OR 38.6 (95% CI 5.8–258; p < 0.001) and persistent bacteremia OR 2.6 (95% CI 1.1–6.8; p = 0.046). In conclusion, a high percentage of cases of CoNS bacteremia may be due to IE. Some of the variables related to a higher risk of IE, such as having a valvular prosthesis or presenting positive blood cultures for more than 12 h, should lead to rule out or confirm the presence of IE by performing echocardiography

Characteristics of Clostridium difficile infection in patients with discordant diagnostic test results

Background: Clinical features of Clostridium difficile infection (CDI) cases diagnosed by detection of polymerase chain reaction (PCR), with negative toxin enzyme immunoassay results (EIA) have not been fully elucidated. The purpose of this study was to determine the magnitude of CDI patients who had negative EIA toxin determinations but positive PCR tests, and their differences in clinical presentation. Methods: We performed a retrospective study comparing the clinical features of CDI cases detected by EIA (toxins A + B) with cases detected by PCR (toxin negative, PCR positive) over a 16-month period. Only patients with an initial Clostridium difficile infection episode that fulfilled a standardized definition were included. Results: During the study period, 107 episodes of CDI were detected. Seventy-four patients (69%) had positive glutamate dehydrogenase (GDH) antigen and EIA determinations (EIA positive patients). Thirty-three patients (31%) had GDH positive, negative toxin EIA and positive PCR determination (PCR positive patients). PCR positive patients were younger, 57 (27) years (mean [SD]), than EIA positive patients, 71 (16) years, (p < 0.001). Fewer PCR positive patients were receiving proton pump inhibitors (21 patients, 64%) than EIA positive patients (61 patients, 82%, p = 0.034). The clinical presentation was similar in both groups. In the multivariate analysis, lower age was identified as the only independent variable associated with PCR positive patients. Conclusions: One third of Clostridium difficile infection patients present negative toxin EIA and PCR positive tests. Performing PCR determination after the negative EIA test is more relevant in younger patients

Risk factors for Clostridium difficile diarrhea in patients with inflammatory bowel disease

Background: Despite the growing incidence of Clostridium difficile diarrhea (CCD) in patients with inflammatory bowel disease (IBD), little is known about the associated risk factors. Method: A retrospective study comparing cases of CCD in patients with IBD to IBD carriers who did not develop CCD. A comparison was also made with patients who developed CCD but did not suffer IBD. Results: Three cases (20 %) with IBD and CCD had received antibiotics during the previous three months versus none of the controls (IBD without CCD, p = 0.22). Ten cases (67 %) received treatment with proton pump inhibitors (PPIs) versus 2 (13 %) in the control group (IBD without CCD, p = 0.001). Seven cases underwent colonoscopy and pseudomembranes were seen in one (14 %). Fourteen (93 %) patients demonstrated a favourable response to metronidazole. Patients with IBD and CCD presented with younger age (36 ± 10 years), a higher degree of community-acquired infection (13 patients, 87 %), immunosuppressive treatment (7 patients, 47 %) and less patients had received previous antibiotic treatment (3 patients, 20 %) than those with CCD without IBD. The proportion of patients who received treatment with PPIs was similar (66 % and 80 %, respectively p = 0.266). Conclusions: CCD in IBD carriers affects younger patients, the majority are community acquired (less nosocomial) and it is more related to previous treatment with PPIs than with the antibiotic treatment. Clinical evolution is also favourable

Documento de consenso sobre consulta telemática en hipertensión y riesgo vascular. Sociedad Española de Hipertensión-Liga Española para la Lucha contra la Hipertensión Arterial (SEH-LELHA)

The pandemic caused by coronavirus SARS-CoV-2 (COVID-19) has forced, in many cases, to replace face-to-face consultation with the telematic consultation, in order to reduce the risk of contagion associated with the presence of patients in health centres. This change may represent an opportunity for a different and more effective communication between professionals and patients, allowing better accessibility to medical care and more systematic and comprehensive approach to patients with hypertension and cardiovascular risk. However, organisational tools are needed to facilitate communication between patients and professionals, specifically with the exchange of clinical data by remote monitoring of variables associated with hypertension and cardiovascular risk (blood pressure, weight, height, blood tests…), and allow monitoring of adherence to treatments, lifestyles and risk factors. It would be desirable for this to be carried out by multidisciplinary teams, both from primary care, hospital and community pharmacy, with an adequate coordination of care. This document of the Spanish Society of Hypertension (SEH-LELHA) tries to give the keys to improve the quality of care of telematic consultations of patients with hypertension and cardiovascular risk, provide basic criteria of telematic or face to face attention and systematise their content. Likewise, the follow-up criteria are proposed by the different professionals.La pandemia producida por el coronavirus SARS-CoV-2 (COVID-19) ha obligado, en muchos casos a sustituir la consulta presencial por la consulta telemática para reducir el riesgo de contagio asociado a la presencia de pacientes en los centros sanitarios. Este cambio puede representar una oportunidad para una comunicación diferente y más eficiente entre profesionales y pacientes, permitiendo mejorar la accesibilidad a la atención médica y un abordaje más sistemático e integral a los pacientes con hipertensión y riesgo cardiovascular. No obstante, se necesitan herramientas organizativas que faciliten la comunicación entre pacientes y profesionales, específicamente con intercambio de datos clínicos que favorezcan la monitorización remota de las variables asociadas a la hipertensión y riesgo cardiovascular (presión arterial, peso, talla, variables analíticas…) y permitan realizar un seguimiento adecuado en aspectos como la adherencia a los tratamientos, estilos de vida y factores de riesgo. Todo ello sería deseable que fuera realizado por equipos multidisciplinares, tanto de atención primaria como hospitalaria y farmacia comunitaria, con una coordinación adecuada del cuidado en este tipo de pacientes. Este documento de la Sociedad Española de Hipertensión-Liga Española para la Lucha contra la Hipertensión Arterial (SEH-LELHA) trata de dar las claves para mejorar la calidad asistencial de las consultas telemáticas de los pacientes con hipertensión y riesgo cardiovascular, proporcionar criterios básicos de atención telemática o presencial y sistematizar el contenido de estas. Así mismo se plantean los criterios de seguimiento por los diferentes profesionales.Sin financiaciónNo data JCR 20200.213 SJR (2020) Q3, 257/349 Cardiology and Cardiovascular MedicineNo data IDR 2020UE