Infective endocarditis in adult patients with congenital heart disease.

BACKGROUND: Congenital Heart Disease (CHD) predisposes to Infective Endocarditis (IE), but data about characterization and prognosis of IE in CHD patients is scarce. METHODS: The ESC-EORP-EURO-ENDO study is a prospective international study in IE patients (n = 3111). In this pre-specified analysis, adult CHD patients (n = 365, 11.7%) are described and compared with patients without CHD (n = 2746) in terms of baseline characteristics and mortality. RESULTS: CHD patients (73% men, age 44.8 ± 16.6 years) were younger and had fewer comorbidities. Of the CHD patients, 14% had a dental procedure before hospitalization versus 7% in non-CHD patients (p < 0.001) and more often had positive blood cultures for Streptococcus viridans (16.4% vs 8.8%, p < 0.001). As in non-CHD patients, IE most often affected the left-sided valves. For CHD patients, in-hospital mortality was 9.0% vs 18.1% in non-CHD patients (p < 0.001), and also, during the entire follow-up of 700 days, survival was more favorable (log-rank p < 0.0001), even after adjustment for age, gender and major comorbidities (Hazard Ratio (HR) 0.68; 95%CI 0.50-0.92). Within the CHD population, multivariable Cox regression revealed the following effects (HR and [95% CI]) on mortality: fistula (HR 6.97 [3.36-14.47]), cerebral embolus (HR 4.64 [2.08-10.35]), renal insufficiency (HR 3.44 [1.48-8.02]), Staphylococcus aureus as causative agent (HR 2.06 [1.11-3.81]) and failure to undertake surgery when indicated (HR 5.93 [3.15-11.18]). CONCLUSIONS: CHD patients with IE have a better outcome in terms of all-cause mortality. The observed high incidence of dental procedures prior to IE warrants further studies about the current use, need and efficacy of antibiotic prophylaxis in CHD patients.

Characteristics, management, and outcomes of patients with left-sided infective endocarditis complicated by heart failure: a substudy of the ESC-EORP EURO-ENDO (European infective endocarditis) registry.

AIMS: To evaluate the current management and survival of patients with left-sided infective endocarditis (IE) complicated by congestive heart failure (CHF) in the ESC-EORP European Endocarditis (EURO-ENDO) registry. METHODS AND RESULTS: Among the 3116 patients enrolled in this prospective registry, 2449 (mean age: 60 years, 69% male) with left-sided (native or prosthetic) IE were included in this study. Patients with CHF (n = 698, 28.5%) were older, with more comorbidity and more severe valvular damage (mitro-aortic involvement, vegetations >10 mm and severe regurgitation/new prosthesis dehiscence) than those without CHF (all p ≤ 0.019). Patients with CHF experienced higher 30-day and 1-year mortality than those without (20.5% vs. 9.0% and 36.1% vs. 19.3%, respectively) and CHF remained strongly associated with 30-day (odds ratio[OR] 2.37, 95% confidence interval [CI] [1.73-3.24; p < 0.001) and 1-year mortality (hazard ratio [HR] 1.69, 95% CI 1.39-2.05; p < 0.001) after adjustment for established outcome predictors, including early surgery, or after propensity matching for age, sex, and comorbidity (n = 618 [88.5%] for each group, both p < 0.001). Early surgery, performed on 49% of these patients with IE complicated by CHF, remained associated with a substantial reduction in 30-day mortality following multivariable analysis, after adjustment for age, sex, Charlson comorbidity index, cerebrovascular accident, Staphylococcus aureus IE, streptococcal IE, uncontrolled infection, vegetation size >10 mm, severe valvular regurgitation and/or new prosthetic dehiscence, perivalvular complication, and prosthetic IE (OR 0.22, 95% CI 0.12-0.38; p < 0.001) and in 1-year mortality (HR 0.29, 95% CI 0.20-0.41; p < 0.001). CONCLUSION: Congestive heart failure is common in left-sided IE and is associated with older age, greater comorbidity, more advanced lesions, and markedly higher 30-day and 1-year mortality. Early surgery is strongly associated with lower mortality but is performed on only approximately half of patients with CHF, mainly because of a surgical risk considered prohibitive.

Clinical presentation, aetiology and outcome of infective endocarditis. Results of the ESC-EORP EURO-ENDO (European infective endocarditis) registry: a prospective cohort study.

AIMS: The EURO-ENDO registry aimed to study the management and outcomes of patients with infective endocarditis (IE). METHODS AND RESULTS: Prospective cohort of 3116 adult patients (2470 from Europe, 646 from non-ESC countries), admitted to 156 hospitals in 40 countries between January 2016 and March 2018 with a diagnosis of IE based on ESC 2015 diagnostic criteria. Clinical, biological, microbiological, and imaging [echocardiography, computed tomography (CT) scan, 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT)] data were collected. Infective endocarditis was native (NVE) in 1764 (56.6%) patients, prosthetic (PVIE) in 939 (30.1%), and device-related (CDRIE) in 308 (9.9%). Infective endocarditis was community-acquired in 2046 (65.66%) patients. Microorganisms involved were staphylococci in 1085 (44.1%) patients, oral streptococci in 304 (12.3%), enterococci in 390 (15.8%), and Streptococcus gallolyticus in 162 (6.6%). 18F-fluorodeoxyglucose positron emission tomography/computed tomography was performed in 518 (16.6%) patients and presented with cardiac uptake (major criterion) in 222 (42.9%) patients, with a better sensitivity in PVIE (66.8%) than in NVE (28.0%) and CDRIE (16.3%). Embolic events occurred in 20.6% of patients, and were significantly associated with tricuspid or pulmonary IE, presence of a vegetation and Staphylococcus aureus IE. According to ESC guidelines, cardiac surgery was indicated in 2160 (69.3%) patients, but finally performed in only 1596 (73.9%) of them. In-hospital death occurred in 532 (17.1%) patients and was more frequent in PVIE. Independent predictors of mortality were Charlson index, creatinine > 2 mg/dL, congestive heart failure, vegetation length > 10 mm, cerebral complications, abscess, and failure to undertake surgery when indicated. CONCLUSION: Infective endocarditis is still a life-threatening disease with frequent lethal outcome despite profound changes in its clinical, microbiological, imaging, and therapeutic profiles.