Infective Endocarditis In Hospital Research Articles

2399. Changing Demographics of Infective Endocarditis in South Carolina: An Ecological Study

Abstract Background The opioid epidemic in America is likely changing the demographics of patients with infective endocarditis (IE). Traditionally, IE is attributed to older patients and those with prosthetic heart valves or cardiac devices. Rising rates of opioid use (OU), usually via injection, has resulted in younger patients being diagnosed with IE, which raises treatment challenges. Methods This retrospective ecological study analyzed hospitalization records from the South Carolina Revenues and Fiscal Affairs Office (SC RFA) from 2016-2021. ICD-10 codes for the diagnosis of IE yielded 7,175 hospitalizations with 5,066 unique patients. Cases of IE with concurrent OU were identified. Rurality of hospital county, hospital teaching status, hospital bed size, length of stay, total costs, discharge status, and distance to hospital zip were reviewed. Data was analyzed by year and age group (18-34, 35-49, 50-64,65-79, and 80+). Poisson regression was used to examine change in trends. Results From 2016-2021, inpatient stays related to IE showed no significant trend for age groups 35 years and older (p > 0.19), while showing a significant positive trend in the 18-to-34 age group (p = 0.04). Of the 7,175 IE hospitalizations, 977 (13.6%) had a concurrent diagnosis of OU. The percentage of patients with concurrent IE and OU diagnosis increased from 7% to 17% of patients/year. The rate of inpatient stays related to concurrent IE and OU increased from 3.8 to 11.1 (p = 0.01) and 2.5 to 8.7 per 100,000 of SC population (p = 0.01), for the 18–34 year-old and 35-49 year old groups, respectively, while not significantly changing in patients 50 years and older over the study period (p = 0.57). Rate Per 100,000 SC Population of Inpatient Stays Related to IE and OU by Age Group Conclusion There are few epidemiologic studies of IE since the 2015 Infectious Diseases Society of America treatment guidelines, though significant concern about the juxtaposition of the opioid epidemic with diseases like IE. There are major changes in the demographics of IE patients. This study supports the need for updated guidelines to specifically address IE in the setting of OU, particularly in younger patients. This includes possible disparities in treatment due to lack of access to ID physicians in rural communities and challenges in providing prolonged intravenous antibiotic therapy. Disclosures Julie Ann Justo, PharmD, MS, FIDSA, BCPS, Gilead Sciences: Advisor/Consultant|Shionogi: Advisor/Consultant|Vaxart: Stocks/Bonds

Abstract 033: Trends in Cerebral Angiogram Utilization for Patients with Infective Endocarditis: A Nationwide Analysis

Introduction Infectious intracranial aneurysms (IIA) represent one of several cerebrovascular pathologies associated with infective endocarditis (IE). Neuroimaging in patients with IE, especially in those undergoing cardiac procedures, have scarcely been examined in the literature. Digital subtraction angiography (DSA), or cerebral angiogram, remains the gold standard for the detection of IIA, yet the utility of this invasive imaging modality is uncertain. Herein, we aim to better understand current national trends in the use of neuroimaging in this group of patients, and its impact on patient outcomes. Methods Hospitalizations for IE with concurrent procedures for left‐sided cardiac valve surgery (VS) were identified in the National Inpatient Sample (NIS) registry during the period of 2015‐2020 using weighted approximations and validated International Classification of Diseases, Tenth Revision, Clinical Modification (ICD‐10‐CM) diagnosis and procedural coding. The primary exposure was DSA and the trend of its use was evaluated during the study period. Multivariable logistic regression analysis was performed to evaluate the adjusted association of angiography with in‐hospital mortality, the primary study endpoint, while accounting for age and illness severity [quantified by All Patient Refined Diagnostic Related Groups (APR‐DRG) illness severity subclass]. Effect size was reported as adjusted odds ratio (aOR) with 95% confidence interval (CI) and a stringent statistical significance threshold of p < 0.001. Results This analysis identified 31,550 hospitalizations for IE treated with VS, of which 1,160 (3.7%) underwent DSA. Utilization of angiography significantly increased during the study period (trend p < 0.001; Kendall’s tau‐b = 0.002), with the rate of the final year of the study nearly doubling that of the first (2020 4.9% vs. 2015 2.5%, p < 0.001). IE VS patients undergoing angiography experienced significantly decreased mortality rates in comparison to those not receiving an angiogram (4.3% vs. 7.5%; p < 0.001). Following multivariable logistic regression analysis, angiography was significantly associated with decreased mortality, independent of age and illness severity (aOR 0.49, 95% CI 0.37, 0.66; p < 0.001). Conclusion The current literature on neurological complications of IE includes limited data on the defined role of neuroimaging in dictating management. The theoretical risk in IE patients undergoing cardiac procedures involving heparinization includes the risk of intracerebral hemorrhage, especially in those with IIA. While less invasive neuroimaging is thought to suffice in detecting bleeds, DSAs remain more sensitive for IIA detection. In our study, not only did the number of IE patients undergoing DSA increase over time, but they had better mortality rates. Future directions should focus on understanding the appropriate timing of imaging in relation to the patient’s disease course to optimize inpatient care.

Contemporary Outcomes and Predictors of Inpatient Mortality for Infective Endocarditis Occurring in Renal Transplant Recipients in the United States

Renal transplant (RT) recipients are susceptible to infections because of immunosuppression. The literature regarding the epidemiology and outcomes of infective endocarditis (IE) in RT recipients is limited. We analyzed the National Inpatient Sample in the United States to study IE in RT and identify risk factors for inpatient mortality and IE development in RT patients. All patients ≥18years who had IE with and without RT between 2007 and 2019 were identified from the National Inpatient Sample. The demographics, co-morbidities, length of stay, hospital costs, and mortality of IE patients with RT were compared with IE patients without RT. Predictors of inpatient mortality for RT recipients with IE were analyzed. Between 2007 and 2019, there were 777,245 hospitalizations for IE, of which 3,782 had RT. The IE in RT cohort was younger than the general IE population and had higher proportions of males, non-White races, and Hispanic ethnicity, and higher burden of co-morbidities, but similar inpatient mortality rates. On multivariate analysis, Staphylococcal IE (adjusted odds ratio [aOR]2.26, 95% confidence interval [CI] 1.2 to 4.3, p=0.015), stroke (aOR6.4, 95% CI 2.7 to 15.3, p<0.001), anemia (aOR2.3, 95% CI 1.3 to 4.0, p=0.004), and shock (aOR6.3, 95% CI 3.3 to 11.9, p<0.001) were associated with greater inpatient mortality, whereas Streptococcal endocarditis (aOR0.37, 95% CI 0.1 to 0.9, p=0.038) was associated with lower inpatient mortality. In conclusion, RT patients with IE were younger and had more severe co-morbidities compared with IE patients without RT. Staphylococcal IE, presence of shock and stroke worsened the prognosis in these patients.

Abstract P272: Spatial and Temporal Trends of Infective Endocarditis Hospitalizations in Kentucky, 2008-2018

Background: Infective endocarditis (IE) hospitalization rates have increased significantly in the last decade, primarily due to the opioid abuse epidemic. A North Carolina study showed an increase in intravenous drug use infective endocarditis (IDU-IE) from 0.9 to 10.9/100,000 during 2007-2017. In 2016, Kentucky ranked among the top ten states with the highest opioid-related overdose deaths. Limited data about IE trends are available for Kentucky. Objective: To examine county-level spatial and temporal trends in IE rates in Kentucky and identify significant high-rate clusters. Methods: We used the Kentucky hospital inpatient discharge data (2008-2018). We included hospitalizations for patients 18 years and older who are Kentucky residents. All IE admissions were identified using ICD-9 and ICD-10 diagnosis codes (421.0, 421.1, 421.9, 424.90, 424.91, 424.99, 112.81, I33.0, I39, I33.9, I38, A3282, and B376). IDU-IE were identified using additional ICD codes for injected illicit drug use. We used US Census data to calculate yearly hospitalization rates of IE /100,000 residents. Joinpoint regression was used to calculate annual percent change (APC). We conducted spatiotemporal cluster analysis at the county level using a Poisson model in SaTScan. Results: Throughout the study period, there were 17,787 IE hospital admissions, including 3,577 IDU-IE. Medicaid patients were more often in the IDU-IE group rather than the non-IDU-IE (71% versus 15%). The IDU-IE hospitalization rate increased from 1.2 to 27.3 / 100,000 in 2008 to 2018 (Figure). From 2013 to 2018, APC for IDU-IE hospitalizations was 71.3, (95% CI: 47.8, 98.5). The spatiotemporal scan statistics identified five statistically significant clusters. The largest cluster occurred during 2015-2018 and included 34 counties out of 120 Kentucky counties, all located in the Appalachian region of Eastern Kentucky (RR= 2.1, p&lt;0.00001). Conclusion: Our study showed increased rates of IE hospitalizations due to an increase in IDU-IE, especially in Eastern Kentucky.

Multidisciplinary Management of Opioid Use-Related Infective Endocarditis: Treatment, QTc Values, and Cardiac Arrests due to Ventricular Fibrillation.

(1) Background: The opioid epidemic has led to an increase in cardiac surgery for infective endocarditis (IE-CS) related to injection use of opioids (OUD) and other substances and a call for a coordinated approach to initiate substance use disorder treatment, including medication for OUD (MOUD), during IE-CS hospitalizations. We sought to determine the effects of the initiation of a multi-disciplinary endocarditis evaluation team (MEET) on MOUD use, electrocardiographic QTc measurements and cardiac arrests due to ventricular fibrillation (VF) in patients with OUD. (2) Methods and Results: A historical group undergoing IE-CS at Yale-New Haven Hospital prior to MEET initiation, Group I (43 episodes of IE-CS, 38 patients) was compared to 24 patients undergoing IE-CS after MEET involvement (Group II). Compared to Group l, Group II patients were more likely to receive MOUD (41.9 vs. 95.8%, p < 0.0001), predominantly methadone (41.9 vs. 79.2%, p = 0.0035) at discharge. Both groups had similar QTcs: approximately 30% of reviewed electrocardiograms had QTcs ≥ 470 ms and 17%, QTcs ≥ 500 ms. Cardiac arrests due to VF were not uncommon: Group I: 9.3% vs. Group II: 8.3%, p = 0.8914. Half occurred in the 1-2 months after surgery and were contributed to by pacemaker malfunction/ management and half were related to opioid use. (3) Conclusions: MEET was associated with increased MOUD (predominantly methadone) use during IE-CS hospitalizations without an increase in QTc prolongation or cardiac arrest due to VF compared to Group I, but events occurred in both groups. These arrests were associated with pacemaker issues or a return to opioid use. Robust follow-up of IE-CS patients is essential, as is further research to clarify the longer-term effects of MEET on outcomes.

Differences in Sex and the Incidence and In-Hospital Mortality among People Admitted for Infective Endocarditis in Spain, 2016-2020.

(1) Background: A description of the trends and outcomes during hospitalization for infective endocarditis (IE) according to sex. (2) Methods: Using Spanish national hospital discharge data (2016-2020), we built Poisson regression models to compare the age-adjusted time trends for the incidence rate. We used propensity score matching (PSM) to compare the clinical characteristics and the in-hospital mortality (IHM) between men and women hospitalized with IE. (3) Results: We identified 10,459 hospitalizations for IE (33.26% women). The incidence of IE remained stable during this five-year period. The age-adjusted incidence of IE was two-fold higher among men vs. women (IRR = 2.08; 95%CI 2.0-2.17). Before PSM, women with IE were significantly older than men (70.25 vs. 66.24 years; p &lt; 0.001) and had lower comorbidity according to the Charlson comorbidity index (mean 1.38 vs. 1.43; p = 0.019). After PSM, the IHM among women admitted for IE remained &gt;3 points higher than that among men (19.52% vs. 15.98%; p &lt; 0.001). (4) Conclusions: The incidence of IE was two-fold higher among men than among women. IHM was significantly higher among women after accounting for the potential confounders.

The Impact of Discharge Against Medical Advice on Readmission After Opioid Use Disorder-Associated Infective Endocarditis: a National Cohort Study.

Hospitalizations for infective endocarditis (IE) associated with opioid use disorder (O-IE) have increased in the USA and have been linked to high rates of discharge against medical advice (DAMA). DAMA represents a truncation of care for a severe infection, yet patient outcomes after DAMA are unknown. This study aimed to assess readmissions following O-IE and quantify the impact of DAMA on outcomes. A retrospective study of a nationally representative dataset of persons' inpatient discharges in the USA in 2016 PARTICIPANTS: A total of 6018 weighted persons were discharged for O-IE, stratified by DAMA vs. other discharge statuses. Of these, 1331 (22%) were DAMA. The primary outcome of interest was 30-day readmission rates, stratified by discharge type. We also examined the total number of hospitalizations during the year and estimated the effect of DAMA on readmission. Compared with non-DAMA, those experiencing DAMA were more commonly female, resided in metropolitan areas, lower income, and uninsured. Crude 30-day readmission following DAMA was 50%, compared with 21% for other discharge types. DAMA was strongly associated with readmission in an adjusted logistic regression model (OR 3.72, CI 3.02-4.60). Persons experiencing DAMA more commonly had ≥2 more hospitalizations during the period (31% vs. 18%, p<0.01), and were less frequently readmitted at the same hospital (49% vs 64%, p<0.01). DAMA occurs in nearly a quarter of patients hospitalized for O-IE and is strongly associated with short-term readmission. Interventions to address the root causes of premature discharges will enhance O-IE care, reduce hospitalizations and improve outcomes.

ODP066 Impact of Comorbid Adrenal Insufficiency on Outcomes of Infective Endocarditis Hospitalizations

Abstract Background Adrenocortical integrity is vital to mounting an appropriate response to a potentially deleterious endovascular infection such as infectious endocarditis. Likewise, adrenocortical hormones affect how cytokine storms lead to secondhand injuries that complicate sepsis. Data on the clinical outcomes of infective endocarditis in patients with adrenal insufficiency is limited and thus our attempt to study this topic was perhaps a worthwhile venture. Method: A retrospective cohort study was designed using data obtained from the 2016 to 2018 combined National Inpatient Sample (NIS) database. Adult patients (age &amp;gt;18) admitted with a principal diagnosis of acute and subacute infective endocarditis were identified using the international diseases classification code, tenth revision (ICD-10). They were then stratified into two cohorts based on the presence of adrenal insufficiency. Primary outcomes assessed were, mortality, length of stay (LOS) and total hospital charge. Secondary outcomes included septic shock, embolic stroke, cardiogenic shock, and septic arterial embolization. Multivariate linear and logistic regressions were used to adjust for confounders. Results There was a total of 36,669.97 adult hospitalizations for infective endocarditis, among which 0.67% had a secondary diagnosis of adrenal insufficiency. The presence of adrenal insufficiency led to an increased length of stay (19.66 days vs 13. 05 days, adjusted mean difference of 7.17 days, 95%CI: 1.41 to 12.92 days, p: 0. 015) and an increased total charge (342,312.3 USD vs 147,887.6 USD, adjusted mean difference: 189,447.6 USD, 95%CI: 32,509.7USD to 346,385.5 USD, p: 0. 018) compared with patients without adrenal insufficiency. There was no significant difference in the odds of mortality between the two groups (4. 00% vs 4. 01%, AOR: 0.87, 95% CI: 0.99 to 7.57, p: 0.898). Similarly, other secondary clinical outcomes including septic shock, cardiogenic shock, septic arterial embolization, and embolic strokes were not different between the two cohort groups. Conclusion The presence of adrenal insufficiency among patients admitted with infective endocarditis led to an increased length of stay and a commensurate increased total charge. However, it did not significantly impact the outcomes in terms of mortality, rate of septic shock, cardiogenic shock, septic arterial embolization, or embolic strokes. Presentation: No date and time listed

Infective endocarditis in adults with congenital heart disease – 11 years data from Hungary

Abstract Background Despite recent preventive strategies and advances in antimicrobial and surgical treatment the incidence and mortality rate of infective endocarditis (IE) remains high in adult Congenital Heart Disease (ACHD) patients. Purpose The aim of our retrospective study was to assess the clinical and microbiological characteristics, inhospital and one year mortality rates of ACHD patients admitted with IE in our tertiary referral hospital between 2010 and 2020. Methods Definitive diagnosis of IE were in agreement with modified Duke's criteria. Inhospital baseline data and up to one year follow-up data were collected from the hospital records. ACHD patients were classified based on their lesion severity (ESC guideline classification). Survival data and mortality predictors were analysed by Kaplan-Meier estimator and by uni- and multivariate model. Results 60 cases had been treated with IE. Mean age was 37±11.3 years (18–69), and most of them (76.6%, n=46) were men. ACHD complexity was as following: simple 66.7% (n=40), moderate 20% (n=12) and severe 13.3% (n=8). The most common pre-existing congenital cardiac abnormality was bicuspidal aortic valve seen in 52% (n=31) of cases. Sixty four percent (n=37) of patients had previous heart surgery (n=16, artificial heart valve surgery). Majority of patients had a left sided valve endocarditis (85%, n=51). IE related hospital stay was mean 28±9 days. Infection route was presumed in 30% of patients (n=18), they had an invasive procedure within 6 months preceding the IE diagnosis. Besides common bacterinemia caused by Staphylococcus (33%, n=20) and Streptococcus (25%, n=15), 18% (n=11) of patients had a negative blood culture. IE affected 36 patients with a native valve, and all 16 with an artificial valve. Seventy seven percent of patients required surgical intervention, immediate or urgent surgery in 22 and elective in 24 patients. Overall inhospital mortality was 13%, the majority 5 out of 8 patients having an immediate/emergent surgical intervention. IE was complicated by acute heart failure in 17 (28%) and by stroke in 4 (6.7%) patients. During one year follow-up 21 patients (38%) remained with chronic heart failure, and 3 more died. There was no significant difference in mortality between ACHD complexity groups, and no significant predictors of mortality were found. Conclusion The most common ACHD lesion affected by IE was bicuspid aortic valve. Two-third of patients required surgical intervention, those with immediate/emergent surgery having a 22% early mortality rate. ACHD complexity was not related to early or late outcome in this population. Funding Acknowledgement Type of funding sources: None.

Sex-related disparities in the incidence and outcomes of infective endocarditis according to type 2 diabetes mellitus status in Spain, 2016–2020

BackgroundWe performed a study to assess sex-differences in incidence (2016–2020), clinical characteristics, use of therapeutic procedures, and in-hospital outcomes in patients with infective endocarditis (IE) according to T2DM status.MethodsOurs was a retrospective cohort study using data from the Spanish National Hospital Discharge Database. We estimated the incidence of hospitalizations for IE in men and women aged ≥ 40 years with and without T2DM. Propensity score matching (PSM) and multivariable logistic regression were used to compare subgroups according to sex and the presence of T2DM.ResultsFrom 2016 to 2020, IE was coded in 9,958 patients (66.79% men). T2DM was diagnosed in 2,668 (26.79%). The incidence of IE increased significantly from 15.29 cases per 100,000 persons with T2DM in 2016 to 17.69 in 2020 (p < 0.001). However, this increment was significant only among men with T2DM (19.47 cases per 100,000 in 2016 vs. 22.84 in 2020; p = 0.003). The age-adjusted incidence of IE was significantly higher in people with T2DM (both sexes) than in those without T2DM (IRR, 2.86; 95% CI, 2.74–2.99). The incidence of IE was higher in men with T2DM than in women with T2DM (adjusted IRR, 1.85; 95% CI, 1.54–3.31). After PSM, in-hospital mortality (IHM) was higher among T2DM women than matched T2DM men (22.65% vs. 18.0%; p = 0.018).The presence of T2DM was not associated with IHM in men or women.ConclusionsT2DM is associated with a higher incidence of hospitalization for IE. Findings for T2DM patients who had experienced IE differed by sex, with higher incidence rates and lower IHM in men than in women. T2DM was not associated to IHM in IE in men or in women.

Temporal association between invasive procedures and infective endocarditis

ObjectiveAntibiotic prophylaxis has been recommended for patients at increased risk of infective endocarditis (IE) undergoing specific invasive procedures (IPs) despite a lack of data supporting its use. Therefore, antibiotic prophylaxis...

In-hospital mortality and length of stay among patients with infective endocarditis and solid organ transplant: A study from National Inpatient Sample 2016–2019

Infective endocarditis (IE) is a rare but serious complication following a Solid Organ Transplant (SOT). Due to the lack of sufficient studies, we aimed to compare in-hospital mortality and length of stay (LOS) of patients primarily admitted for IE (index or principal hospitalization) with history of SOT, including the subgroup of heart or lung transplant (HLT), to those without a history of SOT (non-SOT) or HLT (non-HLT). We used the 2016–2019 National Inpatient Sample, the largest all-payer inpatient hospital data from Healthcare Cost and Utilization Project (HCUP), including patients 18 years or older with IE, as a principal diagnosis for hospitalization. From 2016 to 2019, there were 56,330 principal or index hospitalizations for IE. Among them, 0.6 % (n = 327) were SOT recipients, 0.1% (n = 68) were HLT recipients, and 41.4% were females. The mean age was 51.9 ± 19.2 years. Compared to non-SOT controls, SOT recipients were older (mean age 59.3 vs. 51.8 years; P = 0.002) and had higher Charlson-comorbidity-index (CCI) of 3 or more (87.7% vs. 33.2%; p < 0.001). SOT status was not statistically significant for a higher or lower odds of in-hospital mortality (adjusted odds ratio (aOR) 0.7; 95% confidence interval (CI): 0.2, 2.4; p = 0.60) or increased or decreased LOS (coefficient: -0.1, 95% CI: -0.4, 0.1; p = 0.23) among index IE hospitalizations after controlling for age, sex, race, hospital-region, hospital-teaching status, income, insurance status, and CCI. HLT status was also not associated with higher or lower odds of in-hospital mortality (aOR 1.4; 95% CI: 0.2, 13.1; p = 0.77) or increased or decreased LOS (coefficient: -0.1, 95% CI: -0.3, 0.5; p = 0.59). From 2016 to 2019, the rate of index IE hospitalization trends from 37.8 to 41.4 per 100,000 overall hospitalizations (p = 0.001). We found the rate of index IE hospitalizations increasing with time. Among index IE hospitalizations, SOT, including a subgroup of HLT recipients, have similar in-hospital mortality and LOS compared to non-SOT or non-HLT groups. We need a larger sample size to comment on outcomes of IE hospitalizations with the HLT subgroup.

Brief report: Cause of death among people discharged from infective endocarditis related hospitalization-West Virginia, 2016-2019.

Background and ObjectivesCompare proportion of all‐cause and cause‐specific mortality among West Virginia Medicaid enrollees who were discharged from infective endocarditis (IE) hospitalization with and without opioid use disorder (OUD) diagnosis.MethodsThe proportions of cause‐specific deaths among those who were discharged from IE‐related hospitalizations were compared by OUD diagnosis.ResultsThe top three underlying causes of death discharged from IE hospitalization were accidental drug poisoning, mental and behavioral disorders due to polysubstance use, and cardiovascular diseases. Of the total deaths occurring among patients discharged after IE‐related hospitalization, the proportion has increased seven times from 2016 to 2019 among the OUD deaths while it doubled among the non‐OUD deaths.Discussion and ConclusionsOf the total deaths occurring among patients discharged after IE‐related hospitalization, the increase is higher in those with OUD diagnosis. OUD is becoming a significantly negative impactor on the survival outcome among IE patients. It is of growing importance to deliver medication for OUD treatment and harm reduction efforts to IE patients in a timely manner, especially as the COVID‐19 pandemic persists.

A clinical profile of infective endocarditis in patients with recent COVID-19: A systematic review

BackgroundCoronavirus disease 2019 (COVID-19) can progress to cardiovascular complications which are linked to higher in-hospital mortality rates. Infective endocarditis (IE) can develop in patients with recent COVID-19 infections, however, characterization of IE following COVID-19 infection has been lacking. To better characterize this disease, we performed a systematic review with descriptive analysis of the clinical features and outcomes of these patients. MethodsOur search was conducted in 8 databases for all published reports of probable or definite IE in patients with a prior COVID-19 confirmed diagnosis. After ensuring an appropriate inclusion of the articles, we extracted data related to clinical characteristics, modified duke criteria, microbiology, outcomes, and procedures. ResultsSearches generated a total of 323 published reports, and 20 articles met our inclusion criteria. The mean age of patients was 52.2 ± 16.9 years and 76.2% were males. Staphylococcus aureus was isolated in 8 (38.1%) patients, Enterococcus faecalis in 3 patients (14.3%) and Streptococcus mitis/oralis in 2 (9.5%) patients. The mean time interval between COVID-19 and IE diagnoses was 16.7 ± 15 days. Six (28.6%) patients required critical care due to IE, 7 patients (33.3%) underwent IE-related cardiac surgery and 5 patients (23.8%) died during their IE hospitalization. ConclusionsOur systematic review provides a profile of clinical features and outcomes of patients with a prior COVID-19 infection diagnosis who subsequently developed IE. Due to the ongoing COVID-19 pandemic, it is essential that clinicians appreciate the possibility of IE as a unique complication of COVID-19 infection.

Abstract TP211: Identifying Factors Associated With Higher Risk Of Stroke In Patients With Infective Endocarditis Using The National Inpatient Sample

Background: Cerebrovascular complications (ischemic stroke (IS), intracerebral hemorrhage (ICH) or subarachnoid hemorrhage (SAH)) of infective endocarditis (IE) are common and substantially increase morbidity and mortality. We aimed to identify risk factors for stroke in a nationally representative population of hospitalized IE patients from the US. Methods: Patient hospitalizations for IE and stroke were identified using validated International Classification of Diseases 10 diagnosis codes from the Q4 2015-2018 National Inpatient Sample. We evaluated the association between demographics, known risk factors (opioid use, cardiac valve replacement, and mitral valve disease), and Elixhauser comorbidity index-defined factors with the diagnosis of stroke using logistic regression. Results: Of the 53,557 patients with a diagnosis of IE, 5,754 (10.7%) had a concurrent diagnosis of stroke (75% IS, 6.9% ICH, 4.5% SAH, 14% multiple stroke types). The mean age at IE diagnosis was 59 years; 42.3% were female; 71.8% Caucasian, 14.2% Black, 7.8% Hispanic, 2.7% Asian, and 0.8% Native American; 9.2% of patients died during hospitalization (7.5% without stroke, 23% with stroke, p&lt;0.001). Factors independently associated with stroke are shown in the Table; the C-statistic was 0.63. Opioid use and cardiac valve replacement were not associated with stroke. Conclusion: In this large, nationally representative sample of hospitalized IE patients, comorbidities independently associated with higher odds of stroke included mitral valve disease, metastatic cancer, coagulopathy, weight loss, and electrolyte disorders. Detailed clinical data, not available from this administrative data set, may allow better prediction of stroke, but our findings may suggest areas for additional research.

Surgical versus medical management of infective endocarditis after TAVR.

We assessed the incidence of aortic valve surgery intervention in the treatment of infective endocarditis (IE) after transcatheter aortic valve replacement (TAVR) and compared the characteristics and outcomes of surgical intervention versus medical management alone in this cohort using a nationwide data set. We identified all the hospitalizations in patients undergoing TAVR who developed IE within 1-year (i.e., early IE) of the procedure from 2014 to 2017 using the Nationwide Readmission Database (NRD). The primary outcomes of the study were in-hospital mortality. A total of 906 hospitalizations were identified for IE amongst the TAVR patients from 2014 to 2017 of which 20 (2.21%) underwent aortic valve surgery during the hospitalization. Patients undergoing surgery were younger, more likely to have Staphylococcus aureus endocarditis, cardiogenic shock, and acute kidney injury (AKI) during the hospitalization. There were no significant differences in in-hospital mortality (9.9% vs. 12.4%, p = 0.824; adjusted odds ratio (aOR): 0.26 (0.01-1.58), p = 0.223) and 30-day readmissions. However, the length of stay and hospitalization costs were higher in surgical intervention group. The important predictors of in-hospital mortality in TAVR-related IE patients were dialysis during IE hospitalization, AKI, cardiogenic shock, Staphylococcus aureus endocarditis, stroke, and female sex. The utilization of surgical management for IE post-TAVR during the index hospitalization is low, and there is no significant mortality benefit with surgical intervention as compared with the medical management.

Impact of hospital volume of valve operations on the utilization and outcomes of surgery for patients with infective endocarditis

Valve surgery is indicated and can be life-saving in patients with infective endocarditis (IE). We evaluated the impact of hospital valvular surgery volume on utilization and outcomes of surgery for IE. National Inpatient Sample (NIS) database was used for IE hospitalizations from 2008 to 2015. Hospitals were divided into quartiles based on valve surgery volume with quartile 1 (Q1) indicating lowest volume and quartile 4 (Q4) highest volume. Primary outcome was utilization of valve surgery in patients hospitalized with IE and secondary outcomes were in-hospital mortality and length of stay for IE patients undergoing valve surgery. Volume-outcome relationship was analysed both as categorical (quartiles) and continuous variable (restricted cubic splines). A total of 36 471 hospitalizations for IE were identified using the NIS database from 2008 to 2015 of which 17.33% underwent any valve surgery. Utilization rates of valve surgery for IE were significantly higher in Q4 hospitals (Q1: 6.73%; Q2: 10.39%; Q3: 14.91%; Q4: 2321%). Amongst the admissions for IE endocarditis undergoing valve surgery, there was no significant difference in in-hospital mortality when analysed as a categorical variable (as quartiles). However, when analysed as a continuous variable we note significant variation in outcomes across the Q4 hospitals, with highest volume centres having reduced mortality rates and length of stay. Hospital valvular surgery volume has direct impact on utilization and outcomes of surgery for IE. Given rising rates of IE and ongoing intravenous drug pandemic, there is need for regionalization of care for IE patients and development of 'endocarditis centres of excellence' for improved patient outcomes.

Correction to: Infective Endocarditis Hospitalizations and Outcomes in Patients With End-Stage Kidney Disease: A Nationwide Data-Linkage Study.

Correction to: Infective Endocarditis Hospitalizations and Outcomes in Patients With End-Stage Kidney Disease: A Nationwide Data-Linkage Study.

Rate of permanent cardiac implantable electronic device infections after active fixation temporary transvenous pacing: A nationwide Danish cohort study.

BackgroundTemporary transvenous pacing (TP) has been associated with an increased risk of cardiac implantable electronic device (CIED) infections, but there is little data to document this in contemporary populations.ObjectiveTo investigate the impact of active fixation TP on rate of CIED infections in a nationwide cohort of Danish patients.MethodsWe identified all patients who underwent a first-time CIED implantation between 2009 and 2017. Patients were categorized according to TP status at implantation and followed for 1 year. The primary outcome was local or systemic CIED infection resulting in device system removal. The secondary outcomes were systemic CIED infections and hospitalization for infective endocarditis (IE).ResultsWe included a total of 40,601 CIED patients. A total of 2952 were treated with active fixation TP. The primary outcome was met in 246 patients. Risk of CIED infection at 1 year was 0.61% for patients not treated with TP and 0.65% for patients who were, HR of 1.28 (95% CI 0.80–2.05) and adjusted HR 0.85 (95% CI 0.51–1.42). More systemic CIED infections and IE hospitalizations occurred in TP patients; however, these differences did not persist after confounder adjustment. Cumulative mortality at 1 year was 16.8% in patients with TP vs 8.4% in patients without.ConclusionActive fixation TP was not associated with a higher rate of CIED infections. Patients treated with TP had higher mortality, more systemic CIED infections, and more IE hospitalizations within first year of implantation. Most was attributable to an accumulation of risk factors for infection among TP patients.

Abstract 12143: Differences in Outcomes Among Adults Hospitalized for Infective Endocarditis in the United States: The Impact of Congenital Heart Disease

Introduction: Increased life expectancy for patients with adult congenital heart disease (ACHD) has created new and unique challenges, including management of complications such as infective endocarditis (IE). Hypothesis: Significant IE outcome differences exist between ACHD and non-ACHD patients. Methods: Hospital discharges with IE in patients &gt;=18 years from the National Inpatient Sample were identified between 2001 and 2016. Weighting was used to create national annual estimates indexed to the United States (U.S.) population. Patients were categorized into age groups: 18-44 years, 45-64 years, and 65+ years. Demographic, clinical, microbiologic, and outcome data were compared stratifying by ACHD status. Results: ACHD-related IE hospitalizations increased over time, from 1.6% in 2001 to 3.5% in 2016 (p&lt;0.001 for trend) with a 315% increase in annualized number of ACHD IE hospitalizations from 0.41/100,000 adults to 1.29/100,000 adults. ACHD patients were younger (mean age 49 vs. 65 years, p&lt;0.001). In-hospital mortality was lower in ACHD patients than non-ACHD patients (5.9% vs. 9.5%, respectively, p&lt;0.001); mortality did not change significantly over time among ACHD patients, while mortality decreased in non-ACHD patients (p&lt;0.001). Mortality was lower in ACHD patients across all age groups (all p&lt;0.01). ACHD patients were more likely to undergo valve surgery during their IE hospitalization (29.8% vs. 6.4%, p&lt;0.001). The etiology of IE varied between groups (p&lt;0.001), with increased streptococcal disease in ACHD patients (29.4% vs. 14.4%). Conclusions: A significant increase in the overall proportion of ACHD IE hospitalizations in the U.S. was identified between 2001 and 2016. ACHD patients had lower in-hospital mortality than non-ACHD patients and were more likely to undergo valve surgery. Further research is needed to better understand factors underlying the increase in ACHD IE cases as well as why ACHD patients have decreased mortality.