Risultati per: Caratterizzazione dell'asma in base all'età di insorgenza: uno studio di coorte multi-database

Circulation, Volume 150, Issue Suppl_1, Page A4141689-A4141689, November 12, 2024. Background:Female patients referred for coronary artery bypass grafting (CABG) are generally older and have more comorbidities than their male counterparts. Although higher perioperative mortality among female patients has been reported, there is a lack of large-scale, real-life data on this outcome and its trend.Aim:To study the mortality rate among female patients undergoing CABG from 2015-2020 and compare it with that of their male counterparts.Methods:The National Inpatient Sample from January 2015 to December 2020 was utilized to identify the study population using the International Classification of Diseases, Ninth and Tenth Revisions, Clinical Modification. The primary outcome was the overall in-hospital mortality of CABG based on sex, and the secondary outcome was the mortality trend between the groups.Results:We evaluated 929,759 patients who underwent CABG, of whom 230,000 (24.3%) were female. The female patient group was slightly older than the male patient group (66.4 vs 65.4 years, P

Circulation, Volume 150, Issue Suppl_1, Page A4147077-A4147077, November 12, 2024. Background:Tricuspid regurgitation (TR) worsens heart failure symptoms and perpetuates right ventricular failure (RVF). Given the limited efficacy of medicines and high risk of surgical mortality, percutaneous therapeutic options are gaining importance. The TRILUMINATE study reported an 86% reduction in TR severity and 4% mortality rate using Triclip G4 tricuspid transcatheter edge-to-edge repair (T-TEER) system with improvement in health status. Triclip subsequently gained FDA approval for TR on April 2, 2024.Objective:To evaluate reported device and patient related adverse events during early experience with Triclip system for T-TEER.Methods:The events reported for Triclip since it gained FDA approval were extracted from the FDA MAUDE database. Previously published reports, duplicates and events before FDA approval were excluded. Grades of TR at baseline and after T-TEER associated with single leaflet device attachment (SLDA) were compared using Wilcoxon rank sum test.Results:After excluding 14 reports, 45 were included, dating from 04/02/24 to 05/31/24. Of these, 31 (67.4%) featured patient complications, with SLDA being the most frequent (n=24, 53%).(Figure-1) Cause of SLDA was reported in 8 reports.(Figure-2) SLDA led to regression of TR to pre-procedure levels in 10 patients and Polymorphic VT in one patient. Other patient issues included damage to leaflets (n=7, 15.6%) which necessitated surgery in one case and prompted consideration of the same in another. There were 4 reports of clip entrapment in the chordae. Device-related issues included 3 cases of leaks in the steerable guide catheter affecting its ability to hold the column, knotting on the lock line, difficulties with positioning the second clip above the valve, clip reopening beyond the expected 5°, clip opening while locked but staying closed post-deployment, delays in clip delivery, and challengers in guiding catheter positioning. No acute deaths were reported in the MAUDE database within 2 months of device approval.Conclusion:Our research findings summarize the reported adverse events during the early period following FDA approval of Triclip G4 T-TEER system. This provides valuable insights into common failure modes and complications, offering guidance on their optimal utilization. Multiple adverse events can be noted soon after approval of the Triclip, underscoring the importance of good initial training and proctoring.

Circulation, Volume 150, Issue Suppl_1, Page A4140981-A4140981, November 12, 2024. Introduction/Background:Patients with hematological malignancies are at a higher risk of developing atrial fibrillation. Additionally, it can predispose to an increased risk of bleeding limiting anticoagulation for stroke prevention. LAAO has been successfully utilized among patients with atrial fibrillation and contraindication to anticoagulation.Research Question:What are the outcomes and in-hospital complications of left atrial appendage occlusion (LAAO) among patients with atrial fibrillation and hematological malignancy?Methods:The National Inpatient Sample (NIS) was analyzed from 2015-2020 to identify admissions for LAAO among patients with and without a hematological malignancy. Baseline characteristics were compared between the two groups and multivariate logistic regression was used to analyze hospitalization outcomes.Results:We identified 89,920 weighted admissions for LAAO procedures of which 1,665 patients (1.85%) had a hematological malignancy. In the adjusted analysis, the odds of MACCE (aOR 1.86, 95% CI 1.10-3.14, p 0.0205), cardiogenic shock (aOR 3.76, 95% CI 1.95-7.24, p

Circulation, Volume 150, Issue Suppl_1, Page A4139353-A4139353, November 12, 2024. Background:Coronary Artery Disease (CAD) in obese population is the most common cause of mortality worldwide. This study examines the variation in cardiovascular mortality rates due to CAD in obese adults aged 25 and above from 1999 to 2020.Methods:We performed a retrospective cohort study using death certificate data from the Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiological Research (CDC WONDER) database from 1999 to 2020. We calculated age-adjusted mortality rates (AAMRs), annual percent change (APC), and average annual percentage change (AAPC) per 100,000 persons. The information was categorized based on year, gender, ethnicity, and geographic area.Results:Between 1999 and 2020, CAD in obesity accounted for 102,434 deaths among adults (≥25 years) in the United States. Majority of deaths occurred in medical facilities (49.0%), followed by decedents’ homes (36.8%). The overall AAMR for CAD in obesity-related deaths increased from 1.5 in 1999 to 3.3 in 2020, with an AAPC of 3.46 (95% CI: 2.83 to 3.92, p < 0.000001). Men exhibited higher AAMRs compared to women (men: 2.7; women: 1.6), with significant increases for both sex. The increase was more prominent in men (AAPC: 4.34, 95% CI: 3.73 to 4.83, p < 0.000001). Racial/ethnic disparities were evident, with American Indian or Alaska Native individuals having the highest AAMR (2.9), followed by Black or African American (2.4), White (2.3), Hispanic or Latino (1.3), and Asian or Pacific Islander (0.5). All racial groups experienced an increase in AAMR from 1999 to 2020, most pronounced in American Indian or Alaska Native individuals (AAPC: 5.06, 95% CI: 2.90 to 8.64, p < 0.000001). Geographically, AAMRs ranged from 1.0 in Alabama to 4.3 in North Dakota, with the Midwestern region having the highest mortality (AAMR: 2.6). Nonmetropolitan areas exhibited higher AAMRs than metropolitan areas (nonmetropolitan: 2.8; metropolitan: 2.0). (Figure 1)Conclusion:This study highlights significant demographic disparities in mortality rates due to CAD in obesity among adults aged 25 and older. Despite an overall increase in mortality rates, the significant rise in recent years, particularly among certain racial groups and geographical regions, emphasize the need for targeted interventions and equal healthcare access to improve outcomes for affected populations.

Circulation, Volume 150, Issue Suppl_1, Page A4125533-A4125533, November 12, 2024. Background:In the United States, over 38 million people have diabetes mellitus (DM) and more than 6 million have heart failure (HF). DM and HF often coexist, and each condition independently increases the likelihood of developing the other. Approximately 40% of individuals with HF also have DM, and this prevalence is even higher among older adults and hospitalized patients. While there has been concern regarding the increasing burden of disease for both conditions individually over the last decade, a comprehensive examination of mortality trends associated with their coexistence has not been thoroughly explored.Methods:This study analyzed death certificates from the CDC WONDER database, specifically focusing on mortality caused by the simultaneous presence of HF and DM among individuals aged 75 years and older. The data covers the period from 1999 to 2020. Age-adjusted mortality rates (AAMRs) per 100,000 individuals and annual percent change (APC) were computed and categorized based on year, gender, and race/ethnicity.Results:Between 1999 and 2020, a total of 663,016 deaths were reported in patients with coexisting HF and DM. Overall, AAMR increased from 154.1 to 186.1 per 100,000 population between 1999 and 2020, with an initial increase from 1999 to 2005 (APC: 0.80; 95% CI: -0.17 to 2.94), a significant decline from 2005 to 2011 (APC: -2.82; 95% confidence interval (CI): -5.47 to – 1.71), a subsequent increase from 2011 to 2018 (APC: 0.61; 95% CI: -0.59 to 2.18), and finally a steep increase from 2018 to 2020 (APC: 11.30; 95% CI: 6.98 to 14.11). Gender-based analysis revealed that older men had consistently higher AAMRs than older women (Men: 185; 95% CI: 184.3 to 185.6; vs Women: 135.4; 95% CI: 135 to 135.8). Furthermore, we found that AAMRs were the highest among non-Hispanic American Indian or Alaska natives (214.4; 95% CI: 207.5 to 221.4) followed by non-Hispanic African Americans (179.9; 95% CI: 178.5 to 181.4), Hispanics (159.5; 95% CI: 158 to 161.1), non-Hispanic White (152.9; 95% CI: 152.5 to 153.3), and non-Hispanic Asian or Pacific Islander populations (104.1; 95% CI 102.4 to 105.8) (Figure 1).Conclusion:The mortality rate due to coexisting HF and DM has increased in the elderly population over the past decade. Males and non-Hispanic American Indians or Alaskan Natives had the highest AAMRs in our study.

Circulation, Volume 150, Issue Suppl_1, Page A4143199-A4143199, November 12, 2024. Introduction:Exercise is critical to cardiovascular health. However, the underlying molecular mechanisms are not well described. The Molecular Transducers of Physical Activity Consortium (MoTrPAC) seeks to create a detailed molecular map of the response to exercise. Described here is the first human cohort of MoTrPAC, enrolled prior to the COVID-19 shutdown (N=175).Methods:Healthy, sedentary adults were randomized to an 8-exercise circuit of resistance exercise (RE, N=73), a 40 minute submaximal endurance exercise bout (EE, N=65), or to non-exercising control (N=37). Blood, muscle, and adipose tissue were sampled at 4-7 time points relative to exercise, depending on tissue/modality. Samples were deep phenotyped across multiple omic domains including chromatin accessibility, transcriptomics, proteomics, phosphoproteomics, and metabolomics.Results:The cohort was 72% female, with a mean±sd age of 41±15 years and BMI of 27.1±4.0 kg/m2. Exercise affected over 34,000 molecular features in ≥1 tissue/time point including a high proportion of transcriptomic and phosphoproteomic features (Figure A). Molecular signatures were compared between EE and RE: enrichment analysis of muscle phosphoproteomics showed a greater activation of MAP kinases in RE compared to EE at all time points. To identify plausible exerkines (secreted molecules signaling an acute exercise bout), differentially abundant features in any sampled tissue cells were compared to temporally-matched cognate protein levels in plasma, yielding 110 features. A known exerkine, CX3CL1 (fractalkine) was identified, in addition to novel candidates, such as cellular communication network factor 1 (CCN1), a secreted extracellular matrix protein linked to plasma triglyceride levels, which showed increased abundance early post exercise (Figure B). Network analysis across tissues and omes identified novel transcription factor “hubs” as candidate master regulators of exercise response.Conclusions:These first MoTrPAC data represent an unparalleled multi-tissue, multi-omic, multi-time point, multi-modality map of acute exercise, enhancing our understanding of the molecular transducers that may link exercise and cardiovascular health.

Circulation, Volume 150, Issue Suppl_1, Page A4147046-A4147046, November 12, 2024. Background:Stroke is one of the leading causes of death for older individuals with hypertension. This research investigates the variations in stroke mortality rates and trends among 65-year-old hypertension patients in the US from 2000 to 2020.Methods:The CDC WONDER database’s mortality data from 2000 to 2020 was used for a retrospective analysis. Average Annual Percentage Change (AAPC) and Annual Percent Change (APC) were used to evaluate trends and produce age-adjusted mortality rates (AAMRs) per 100,000 people. Data was stratified by year, sex, race/ethnicity, and geographical regions.Results:Between 2000 and 2020, 598,341 deaths among individuals 65 years of age or older in the United States were related to stroke due to hypertension. Most occurred in nursing homes/long-term care facilities (36.7%). The overall AAMR for stroke in hypertension-related deaths dropped from 86.6 in 2000 to 51.8 in 2020, with an AAPC of -2.86 (95% CI: -3.18 to -2.61, p < 0.000001). Between 2000 and 2012, the AAMR had a considerable reduction (APC: -2.30, p < 0.000001). Subsequently, from 2012 to 2018, there was a more dramatic decrease (APC: -6.85, p < 0.000001) than a notable rise (APC: 6.45, p = 0.024) from 2018 to 2020. Older women had higher AAMRs than older men (women: 66.5; men: 60.1). Both sexes experienced decreases, with the decline more prominent in women (women: AAPC: -3.20, p < 0.000001; men: AAPC: -2.22, p < 0.000001). There were notable racial differences: Black people had the highest AAMRs (31.0), followed by White people (21.8), American Indians and Alaska Natives (18.6), Asians and Pacific Islanders (12.9), and Hispanics (12.5). All racial groups experienced decreases in AAMRs, most pronounced in Asians (AAPC: -4.62, p < 0.000001). Geographically, Massachusetts had the lowest (36.3), and Mississippi had the highest (117.7) AAMRs. The Western region had the highest average AAMR (71.8), while nonmetropolitan areas exhibited higher AAMRs than metropolitan areas (nonmetropolitan: 25.9; metropolitan: 20.7).Conclusion:The study uncovers significant variations in mortality rates among elderly individuals in the US due to stroke and hypertension. The recent uptick emphasizes the necessity for targeted efforts to tackle these disparities and improve the health outcomes of affected communities.

Circulation, Volume 150, Issue Suppl_1, Page A4140245-A4140245, November 12, 2024. INTRODUCTION:Atrial fibrillation (AF), often diagnosed in the Emergency Department (ED), increases the risk of stroke by 64% but can be mitigated by guideline-directed oral anticoagulant (OAC) treatment.RESEARCH QUESTION:Does clinician education of an AF clinical decision support (CDS) tool increase OAC prescription rates for patients with new-onset AF or paroxysmal AF (pAF)?GOALS:To increase guideline recommended care practice of OAC prescribing for appropriate candidates in the ED.Methods:This multi-center, multi-phase, stepped-wedge cluster-randomized clinical trial includes a retrospective phase (Phase 0) and implementation of an external browser link to the CDS in the EHR (Phase 1) which included patient-specific stroke and bleeding risk stratification scores with recommendation for OAC based on professional society guidelines, along with targeted provider education on how to use the resource. Data was collected from ED visits of patients aged > 18 with a primary AF/pAF diagnosis from Jan 1, 2020–May 25, 2024. The three sites, one academic and two community hospitals, implemented Phase 1 in January ‘22, April ‘22, and April ‘23. Eligibility for OAC treatment was based on clinical judgment weighing the benefit of stroke prevention against the risk of bleeding. A logistic GEE model assessed the intervention’s impact on OAC prescribing and treated ED providers as a random effect to account for clustering. The model included the CDS intervention and covariates for site, cardiology consultation, guideline citation, and patient factors such as sex, race, ethnicity, and age.Results:Of 4397 patients analyzed, 655 met inclusion criteria, among which 296 (45.19%, median age 68) were prescribed OAC, 175 in Phase 0, and 121 in Phase 1. The odds ratio estimates and their corresponding 95% confidence intervals are as follows: CDS intervention 1.75 [1.20, 2.54], sex female vs male 2.31 [1.57, 3.38], age 0.27 [0.12, 0.61], site 0.55 [0.29, 1.04] and 0.45 [0.25, 0.83] for each community site vs academic, cardiology consultation 4.56 [2.80, 7.42], and guideline citation 2.23 [1.44, 3.43]. Race and ethnicity did not show significant associations.CONCLUSION(S):We demonstrated that clinician education and limited CDS tool integration into the EHR are linked to an almost two-fold increase in OAC prescribing for suitable AF/pAF patients. Future studies should evaluate the influence of further CDS integration on OAC prescribing, long-term adherence, patient outcomes.

Circulation, Volume 150, Issue Suppl_1, Page A4125334-A4125334, November 12, 2024. Background:Limited knowledge exists regarding non-acute myocardial infarction-associated cardiogenic shock (nACS-CS) and its associated outcomes within the African American population.Aim:This investigation aimed to examine the clinical outcomes of nACS-CS in the African American population compared to the non-African-American population in the United States.Methods:The National Inpatient Sample (NIS) database was employed to identify hospitalizations with nACS-CS from 2018 to 2020. Patients were categorized as either African Americans or non-African Americans. Statistical analyses, including Chi-square and t-tests, were conducted using STATA version 18.Results:Out of 8,607 nACS-CS hospitalizations, 1,325 (15.4%) involved African Americans between 2018 and 2020 (Figure 1a). African American patients with nACS-CS tended to be younger (60.9±16.6 vs. 65.8±16.7 years; p < 0.05). Moreover, the length of stay for this cohort was notably longer (16.2±0.75 vs. 14.8±0.32 days; p < 0.05). The demographic age group affected by cardiogenic shock exhibited a decreasing trend as time progressed up to 2020 (p-trend

Circulation, Volume 150, Issue Suppl_1, Page A4147545-A4147545, November 12, 2024. Introduction:Pulsed field ablation (PFA) is an adaptation of direct current ablation first used for catheter ablation in the 1980s. Expectations of a reduced risk profile led to the current resurgence in investment and interest in the technology as a potential alternative energy source for ablations to treat atrial fibrillation (AF). However, reports of adverse events, including new risks, are increasing.Research Question:How many adverse effects are reported with the use of newly available PFA systems?Aims:Quantify and describe the adverse events from PFA reported to date in the Food and Drug Administration’s (FDA) Manufacturer and User Facility Device Experience (MAUDE) database.Methods:We searched the U.S. FDA’s MAUDE database for all reports filed with the code “QZI”, which is the product code for PFA systems created with the first FDA approvals in February 2024. All reports from inception through April 2024 (a total of 3 months) were included in this review. Per manufacturer presentation in May 2024, approximately 1000 cases utilizing PFA had been captured in a post-market registry of the predominant commercially used technology, but the exact number of cases can not be determined from MAUDE data.Results:A total of 217 adverse events were reported over the first 3 months of US approval, with 91 of these considered patient injuries. These injuries included 10 cases of cardiac tamponade, 7 reports of postoperative arrhythmia, 6 instances of device-related tissue entrapment, 5 cases of hemolysis with impaired renal function, 5 cases of stroke or TIA, including both embolic and hemorrhagic, 3 cases of intraoperative heart block, 2 coronary spasms, and 2 cases of intraoperative ST elevation.(Figure)Of the 91 reported patient safety events, 46 required hospitalization, 13 cases required temporary pacing, 11 required pericardiocentesis, 4 required dialysis, 4 required cardiothoracic surgery, and 2 required cardioversion.Conclusions:A number of adverse events have been reported to the MAUDE database in the first 3 months of FDA approval of PFA. The cardiac electrophysiology community should remain vigilant to ensure that the benefit-risk profile remains acceptable for patient safety.

Circulation, Volume 150, Issue Suppl_1, Page A4135095-A4135095, November 12, 2024. Background:While anticoagulation is crucial for atrial fibrillation (AF) patients to prevent ischemic events, those with thrombocytopenia have a potential increased risk of bleeding. This study examines the outcomes of hospitalized AF patients with thrombocytopenia.Methods:The National Inpatient Sample (NIS) from 2016-2020 was analyzed to identify adult patients with AF and thrombocytopenia (using the proper ICD-10 codes). Multivariate logistic and regression analyses were performed after adjusting for multiple patient and hospital confounders to compare outcomes between patients with and without thrombocytopenia. The primary outcome was all-cause inpatient mortality. Secondary outcomes included major bleeding (defined as gastrointestinal, intracranial, pulmonary, or unspecified bleeding), hypovolemic shock, packed red blood cell (pRBC) transfusion, ischemic stroke, length of stay (LOS), and total charges.Results:Among 2,016,244 AF admissions, 75,545 patients (3.75%) had thrombocytopenia. Thrombocytopenia was associated with increased inpatient mortality (adjusted odds ratio [aOR] 2.47, 95% CI 2.21-2.77, p < 0.001). Thrombocytopenia was also associated with increased risk of major bleeding (aOR 1.99, 95% CI 1.8-2.19, p < 0.001), hypovolemic shock (aOR 3.11, 95% CI 2.29-4.24, p < 0.001), pRBC transfusion (aOR 3.07, 95% CI 2.8-3.37, p < 0.001). There was no significant difference in ischemic stroke risk (aOR 0.67, 95% CI 0.37-1.21, p < 0.19) but thrombocytopenia was associated with longer LOS (aMD 1.5 days, 95% CI 1.41-1.59, p < 0.001) and higher total charges (aMD $16,508, 95% CI 14,805-18,211, p < 0.001).Conclusions:Thrombocytopenia in hospitalized AF patients is associated with increased mortality, bleeding risk, and healthcare costs, with no clear impact on ischemic stroke. These findings highlight the need for careful risk-benefit assessment and individualized management strategies for this vulnerable patient population.

Circulation, Volume 150, Issue Suppl_1, Page A4132152-A4132152, November 12, 2024. Background:Hypertrophic cardiomyopathy (HCM) is associated with increased mortality mainly due to sudden cardiac arrest. However, it is not clear how HCM affects in-hospital mortality among patients hospitalized due to other cardiovascular conditions requiring intervention.Methods:National Inpatient Sample (NIS) database was queried from 2016 to 2020 to identify hospitalized patients with a diagnosis of HCM. Patients with HCM were stratified based on their concomitant cardiovascular conditions necessitating interventions.Results:Data pertinent to 278,995 admission cases with HCM was analyzed. Of this, 15,035 cases had concomitant non-ST elevation MI (NSTEMI), and 1,230 cases had ST-elevation MI (STEMI). Additionally, 15,100 cases were diagnosed with aortic valve diseases (AVD), 33,580 had concomitant mitral valve diseases (MVD), 5,580 cases had tricuspid valve diseases (TVD), and 16,815 cases had pulmonary valve diseases (PVD). Cardiovascular procedures were more common among HCM patients with concomitant STEMI (43.5%) followed by HCM patients with AVD (17.1%) and HCM patients with NSTEMI (16.9%). Stratification of mortality rate based on cardiovascular procedures and the underlying indication revealed CABG to have the highest mortality rate for HCM patients with STEMI (25%), followed by PCI for HCM patients with STEMI and HFrEF (12.5%). HCM patients with NSTEMI undergoing revascularization had higher mortality when PCI was performed for HFrEF cases and when CABG was performed for HFpEF cases. For HCM patients with AVD requiring repair or replacement, TAVR was superior to SAVR if performed in patients with HFpEF but was inferior among HFrEF subgroup in terms of in-hospital mortality. For subgroup of HCM patients with MVD, transcatheter replacement was associated with a lower mortality than surgical repair regardless of concomitant heart failure. Data was insufficient for HCM patients with concomitant TVD or PVD undergoing repair or replacement procedures.Conclusions:Among hospitalized patients with HCM, concomitant HFrEF but not HFpEF is associated with a significantly higher mortality rate regardless of the underlying cardiovascular conditions requiring revascularization or heart valvular repair. A more comprehensive preoperative risk assessment could delineate the ideal procedures for HCM patients with certain comorbidities and specific need.

Circulation, Volume 150, Issue Suppl_1, Page A4139239-A4139239, November 12, 2024. Objective:Identification of individuals with reduced or preserved ejection fraction heart failure (HFrEF/HFpEF) within claims data is typically based on ICD-10-CM diagnosis codes that use systolic and diastolic HF (SHF/DHF) nomenclature. The objective of this study was to assess the performance characteristics of using ICD-10-CM diagnostic codes from claims data for HFrEF and HFpEF classification relative to a reference standard using EF results or clinician documentation within an integrated claims/EMR database.Methods:EMR data from the Healthcare Integrated Research Database (HIRD®) were searched to identify patients with EF assessment between 01/01/2016 and 01/31/2023. HFrEF was defined as EF ≤ 40% or documented reduced EF, while HFpEF was defined as EF ≥ 50% or documented preserved/normal EF. The most recent EF assessment date or EMR entry date (if EF assessment date not available) was set as the index date. Claims submitted from 7 days to 6 months post index date were then reviewed to identify SHF and DHF diagnoses as well as comorbid conditions. Analyses were performed to determine sensitivity, specificity, and positive/negative predictive values (PPV/NPV), accuracy and F1 scores of the claims-based algorithm, with a sensitivity analysis performed using the subset of patients with a known EF assessment date available.Results:A total of 45,272 patients had EF assessment in the EMR data with either a SHF or DHF diagnoses in the claims data. Mean (SD) age was 71.7 (12.7) years, 51.2% were male. The most common comorbidities of interest included hypertension (89.5%), dyslipidemia (71.9%), atrial fibrillation (45.9%), type 2 diabetes (43.7%), and chronic kidney disease (39.6%). Counts by heart failure classification and algorithm performance characteristics are in Table 1. Sensitivity analyses for those with known EF assessment dates showed similar results.Conclusions:Overall performance of the claims-based algorithm was good to very good, although EF data integrated with claims data can improve HF classification. Future claims-based algorithm development could also incorporate treatments and comorbidities to improve performance.

Circulation, Volume 150, Issue Suppl_1, Page A4139942-A4139942, November 12, 2024. Background:Thromboembolic events in atrial fibrillation (AF) patients represent a significant health concern among older adults in the United States. This study investigates trends and demographic disparities in mortality rates due to thromboembolic events in AF patients aged 65 and older from 1999 to 2020.Methods:Utilizing the CDC WONDER database from 1999-2020, this retrospective analysis focused on ICD code I48 for AF and related stroke codes (I26, I63, I74, and I82). Age-adjusted mortality rates (AAMRs) per 100,000 persons were calculated, and trends were assessed using Average Annual Percentage Change (AAPC) and Annual Percent Change (APC). Data were stratified by year, sex, race/ethnicity, and geographical regions.Results:Between 1999 and 2020, thromboembolic events in AF accounted for 422,525 deaths among adults aged 65+ in the U.S., primarily occurring in medical facilities (45.0%). The overall AAMR for thromboembolic events in AF-related deaths increased from 47.3 in 1999 to 49.1 in 2020, with an AAPC of -0.15 (95% CI: -0.37 to 0.07, p = 0.169). A significant decline occurred from 1999 to 2006 (APC: -1.45; 95% CI: -3.22 to -0.63, p < 0.000001), followed by a mild rise from 2006 to 2020 (APC: 0.50; 95% CI: 0.25 to 0.88, p = 0.013). Older women exhibited higher AAMRs compared to older men (women: 46.4; men: 43.5). Among racial/ethnic groups, White patients had the highest AAMRs (48.7), followed by Black population (33.5), American Indians (30.1), Asians (28.8), and Hispanics (27.3). All racial groups saw significant increases in AAMRs except Asian population, who experienced a slight decrease. The highest AAPC was observed in Blacks (1.46; 95% CI: 0.94 to 1.84, p < 0.000001). AAMRs varied by state, ranging from 29.2 in Nevada to 83.9 in Vermont. The Western region had the highest average AAMR (52.0). Nonmetropolitan areas had higher AAMRs than metropolitan areas (51.6 vs. 44.4).Conclusion:This analysis reveals stable yet slightly increasing mortality rates for thromboembolic events in AF among older adults in the U.S. over the past two decades, highlighting ongoing public health concerns. Addressing disparities and improving healthcare access for vulnerable populations are crucial to reducing these mortality rates and improving health outcomes.

Circulation, Volume 150, Issue Suppl_1, Page A4141585-A4141585, November 12, 2024. Introduction/Background:Despite increasing awareness of lipoprotein(a) [Lp(a)] as an independent, genetically determined, causal risk driver of atherosclerotic cardiovascular disease (ASCVD), Lp(a) screening occurs infrequently, and nationwide, comprehensive data characterizing the risk of elevated Lp(a) are lacking.Aims:To evaluate the association of Lp(a) level with cardiovascular disease (CVD) events in individuals with and without pre-existing ASCVD using real-world data from the Family Heart DatabaseTM.Methods:Observational, retrospective cohort study using longitudinal data in over 324 million individuals from 2012-2021. Selection criteria included individuals ≥18 years with ≥1 Lp(a) test measured in nmol/L during May 1, 2013 to December 31, 2020, and ≥1 medical claim pre- and post-index date (date of earliest Lp[a] test). Lp(a) levels were categorized by percentile (80th). Elevated Lp(a) was defined as >80thpercentile ( >140 nmol/L). Multivariable Cox Proportional Hazards model analyses compared a group with Lp(a)

Circulation, Volume 150, Issue Suppl_1, Page A4139651-A4139651, November 12, 2024. Background:Despite expert opinion recommending patient-tailored cardiac rehabilitation (CR) after acute aortic dissection, both patient participation in CR and the associated risk factor modification after CR following aortic dissection repair are poorly understood.Objectives:To describe the characteristics of patients referred to CR, as well as the enrollment rate and outcomes of those referred to CR following thoracic aortic dissection.Methods:We reviewed electronic health records of adults (≥18) discharged alive following thoracic aortic dissection surgery across the Mayo Clinic Enterprise (01/01/2020-11/15/2022) with follow-up to 05/15/2024 (IRB #24-001141). Data are presented using summary statistics.Results:During the study period, 85 patients were included (median [IQR] age: 65 [50-75] years; 40% female;Table 1). Across 84% (N=71) who were referred to CR at discharge, 55% (N=39) enrolled. In those patients referred versus not referred to CR, the prevalence of type A dissection (75% vs. 43%), end-organ involvement (27% vs. 0%), and underlying CAD (54% vs. 21%) were greater while current tobacco use (9% vs. 29%) was lower. Of those enrolled at Mayo Clinic (N=16), CR was started 35 (28-65) days following surgery. These patients completed 21 (13-30) CR sessions at an exercise intensity of 59% (50-65%) maximum predicted heart rate. CR was discontinued in 44% (N=7) due to non-cardiac reasons (Table 2). Of the 9 patients who completed CR, general health status (Dartmouth index: 19 [17-21] vs. 26 [22-34]), depressive symptoms (PHQ-9: 1 [0-1] vs. 4 [1-4]), and exercise capacity (6MWT: 214 [196-244] vs. 384 [305-597] meters) improved (Table 2). There were no reported complications or deaths, with stable aortic sizes reported at 18 months.Conclusions:CR improves functional capacity and well-being without complications in patients after thoracic aortic dissection surgery. Further investigation is needed to better assess CR efficacy and usage in this population.