Infective Endocarditis

The primary objective of this study is to demonstrate that a rifampin-free regimen is non-inferior to the rifampin-containing regimen in terms of all-cause mortality in staphylococcal prosthetic valve endocarditis within 6 months after randomization.

This clinical trial is studying if bacteria found in a participant's bloodstream after brushing their teeth can be prevented with a dental cleaning and more education on how to best brush and care for their teeth. One group of participants will have a dental cleaning and oral health instructions and the other group of participants will not. Researchers will compare the blood test results from the two groups to see if the education made a difference in preventing bacteria and how long it stays in the bloodstream.

The Barts Endocarditis Research Registry is being set up to give a unique opportunity to assess the characteristics of Infective Endocarditis (IE) in our population cohort, the current use of imaging techniques, as well as the implementation of the ESC guidelines and its consequence in terms of prognosis. All this will help improve the diagnosis and management of IE. The registry will also form the core of all our subsequent work, including interventional studies. The endocarditis research registry is to record the epidemiological, demographic, microbiological, surgical and outcome data in our cohort of endocarditis patients. This work will underpin all future work in endocarditis by clearly defining our patient cohort and the outcomes from treatment. We have a series of studies planned that we believe will influence the management of endocarditis (we are working up proposals for genomic and therapeutic trials that will subsequently be presented for ethical and hospital approval). The registry will be generic to all our planned studies, and will allow us to capture data to assess treatment effectiveness

The goal of this study is to evaluate the impact of a diagnostic algorithm combining culture-based and molecular methods on the frequency of etiotropic antibiotic therapy prescription within 14 days of diagnosis of infective endocarditis

Cardiac infections, including infective endocarditis and cardiovascular implantable electronic device infections, are associated with substantial morbidity and mortality and are commonly caused by gram-positive bacteria. Standard management typically requires prolonged courses of intravenous antibiotics and extended hospitalisation, which are costly, burdensome, and associated with complications related to long-term vascular access. People who inject drugs are disproportionately affected and often experience stigma, barriers to care, and poorer outcomes. Long-acting lipoglycopeptides such as oritavancin maintain therapeutic serum concentrations for prolonged periods and may offer an alternative to conventional intravenous antibiotic regimens. Oritavancin is not TGA-registered in Australia and is accessed as an unregistered medicine (for example, via SAS or clinical trials). It is approved in other jurisdictions, including the United States and European Union, for acute bacterial skin and skin structure infections. Prospective data in cardiac infections remain limited, and optimal dosing strategies, including the role of therapeutic drug monitoring, are uncertain. This multicentre, open-label pilot study will assess the feasibility, pharmacokinetics, safety, acceptability, and preliminary efficacy of oritavancin for gram-positive cardiac infections using both standard fixed dosing and TDM-guided dosing strategies. Findings will inform PK/PD modelling, the potential role of TDM, and the design of future larger-scale trials and models of care, including alternatives to prolonged inpatient intravenous therapy.

Prospective observational study designed to describe the clinical, laboratory, imaging, microbiological characteristics and treatment of specific infectious diseases, with the addition of a dedicated biobank.

How does health develop after Infective endocarditis (IE)? Can the health of patients with IE be improved by participation in the physical exercise training within cardiac rehabilitation program? Participants will: * Answer digitally surveys on the perceived health for 4 times during 1 year * Participate in interviews on patient's experiences of health and rehabilitation 1 time before and 2 times after the training program during I year. * Be physically evaluated by a physiotherapist before and after the progam of physical exercise training within cardiac rehabilitation. * Do individual exercises in a group led by a physiotherapist 2 times weekly during 12 weeks.

1\. Infective Endocarditis (IE) is a rare and serious disease with high morbidity and mortality; 2. Streptoccoci of oral origin are the second more frequent microorganisms responsible for IE; 3. Oral Infectious Foci (OIF) are underdetected using the current recommended clinical examination/Orthopantomogram (OPT) approach; 4. Cone Beam Computed Tomography (CBCT) has a better sensitivity and sensibility to detect OIF than OPT; 5. To date, no study has been performed to assess the potential benefit of a clinical examination/CBCT approach on the oral health status in IE patients. Thus, conducting a randomized controlled trial is highly desirable to assess the potential impact of a clinical examination/CBCT approach on the oral health status of patients hospitalized for IE and potentially to reduce IE new episodes.

CiGal-EI-TEP is an exploratory study that aim to assess the diagnostic performance of 68Ga Positron emission tomography (PET) / Computed Tomography (CT) for the diagnosis of prosthetic valve infective endocarditis in comparison with the final diagnosis established according to the ESC 2023 criteria, after 3 months of follow-up, by a panel of experts.

Infectious endocarditis (IE) is associated with mortality rates of 10-12%. Adequate antibiotic therapy is crucial for survival and is administered in high doses due to the severity of the disease. In most cases, beta-lactam antibiotics (e.g. ampicillin, penicillin G, cefotaxime or cloxacillin) are employed. A number of patient characteristics, such as age, body weight, and renal function) influence the pharmacokinetics of these drugs. Yet, the interindividual variability is poorly understood meaning that a large proportion of patients are at risk of subtherapeutic or excessive drug concentrations that might result in treatment failure or side effects, respectively. In the present study, data will be collected on antibiotic concentrations in patients treated with beta-lactams for infectious endocarditis as well as patient characteristics and treatment outcomes. A mathematical model will be developed to determine which patient factors determine drug pharmacokinetics. Based on this model, predictions will be made by mathematical simulations on which dosing regimens are optimal for individual patients to ensure therapeutic and non-toxic drug concentrations. In total, 150 patients will be included at four University Hospitals in Sweden; Uppsala University Hospital, Sahlgrenska University Hospital in Gothenburg, Skåne University Hospital in Lund and Karolinska University Hospital in Stockholm. Following informed consent to participate blood samples will be collected at 6 time-points during a dose interval and then at 3 time-points weekly during the full treatment episode (maximum 6 weeks).

Staphylococcus aureus is the most frequent cause of both healthcare-associated and community-acquired bloodstream infections worldwide. Infective endocarditis (IE) has been detected in 5-17% of cases and is a determinant of poor prognosis. The investigators developed a score (the VIRSTA score) based on patients' characteristics to rule out IE with high confidence (negative predictive value (NPV) above 99%) in patients with SAB. This score, with a cut-off of 3 has been externally validated by two international studies which have also established its high NPV. The 2023 European society of cardiology (ESC) guidelines state that echocardiography should be considered in all patients with Staphylococcus aureus bacteremia (SAB) using risk scores (including VIRSTA score) to guide the use or not of echocardiography. While recommended, the investigators think that VIRSTA score must be evaluated in terms of patients' outcome.

Infective endocarditis (IE) is a severe condition associated with high mortality. Due to the relative low prevalence of IE, prospective data are lacking and current guidelines are mostly based on expert consensus with low level of evidence. IE is also associated with severe complications especially strokes that occur in about one third of the patients. In order to improve the management and the prognosis of IE, clinical data from larges prospective cohort studies are needed.

The objective of this observatory is to provide a national database of infective endocarditis, informed by all volunteer centers, using a standardized case report forms. Such an observatory will describe the clinical profile, microbiological, therapeutic and evolving of infective endocarditis (IE); analyze the risk factors for the disease and its prognosis factors of evolution; describe management practices; evaluate and compare in the real drug treatment strategies (including antibiotics) and surgical.

The objective of this prospective observational registry is to study patients di-agnosed with infective endocarditis (IE) and to gather comprehensive long-term outcome data, including mortality rates and IE-related complications (e.g., thromboembolic events, (hospitalization for) heart failure, valve surgery and IE recurrence) at one, three-, and five-years post-enrollment. Additionally, the registry will document epidemiological characteristics, clinical presentation at baseline, biochemical and microbiological profiles, relevant comorbidities and risk factors, diagnostic strategies, and therapeutic interventions, including an-timicrobial therapy and surgical procedures.

The aim of this study is to assess the impact of implementing a patient education and preparation protocol for FDG PET (18F-FDG PET) imaging on the quality of imaging results. 18F-FDG (18Fluor-FluoroDesoxyGlucose) PET (Positron Emission Tomography) is indicated for the diagnosis of cardiac inflammation. To detect cardiac inflammation, the myocardium (heart muscle) must be prevented from absorbing glucose from the diet (FDG). To achieve this, patient preparation is essential. Poor preparation can compromise the interpretation of results, causing diagnostic delay. To answer the research question, the investigators plan to include 138 people with suspected infective endocarditis or cardiac sarcoidosis, in two institutions of the Assistance Publique - Hôpitaux de Paris: Hôpital Européen Georges Pompidou and Hôpital Cochin-Port-Royal, located respectively at 20 rue Leblanc 75015 Paris and 27 rue du Faubourg Saint-Jacques 75014 Paris.

The study aimed to conduct a randomized, non-inferiority controlled trial to compare the short- and medium-term efficacy and safety of two antibiotic dosage regimens in cardiac implantable electronic devices (CIED) infections with multidrug-resistant Gram-positive cocci: 1) single-dose therapy with a long-half-life antibiotic (oritavancin) vs. standard 7-14 days of therapy with a short-half-life antibiotic (vancomycin) for CIED surgical incision site or pocket infection; and 2) fractionated therapy with a long-half-life antibiotic (oritavancin) at seven-day intervals compared to standard therapy with a short-half-life antibiotic (vancomycin) fractionated in 2-3 daily doses in cases of lead-related infectious endocarditis.

The proposed study is a multicentric prospective observational cohort study of patients with suspected NVE. The study population includes those with Possible IE according to the modified Duke criteria and investigated at one of the 6 participating sites which include 2 cardiac centers, the MHI and the IUCPQ, as well as 4 tertiary care centers, the Jewish General Hospital , the McGill University Health Centre and the CHUS.

Infective endocarditis (EI) is an extremely serious disease requiring prolonged hospitalisation, complex management by multidisciplinary teams and high healthcare costs. Anemia is also emerging as a virtually constant condition associated with endocarditis, as evidenced by its inclusion in the variables used to calculate risk scores.Anemia associated with infective endocarditis (EI) has a remarkably complex and multifactorial pathogenesis.It is essential to treat anaemia in patients with EI as an integral part of their overall therapy, in what is now called patient blood management. Blood transfusion is not the only approach available to treat this condition. It is essential to correct any deficiencies, whether iron or vitamins. In addition, some patients may benefit from the administration of erythropoiesis-stimulating agents.

In this study, by establishing a clinical cohort of infective endocarditis, we observed the natural prognosis and influencing factors in the process of disease development and regression; we used multi-omics technology to understand the prognostic value of its biomarkers, and provided new ideas and evidence for the pathogenesis, clinical diagnosis and treatment of IE.

We aim to describe the incidence of IVDA among patients presented with IE, describe their clinical, psychiatric and microbiological characteristics in comparison to non - IVDA, as well as the rate and types of complications and outcome, and responsiveness to medical treatment or surgical intervention.

This is a prospective, multicentric, european registry of patients with infective endocarditis undergoing cardiac surgery. Patient demographics, clinical data and laboratory values will be collected, as well as treatment outcomes at day 30, day 90 and 1-5 years after the intervention.