Rates Of Acute Myocardial Infarction Research Articles

Rates of Cardiovascular Events in the Justice System: An Unknown Problem.

People who experience incarceration have a heightened risk for cardiovascular disease (CVD) mediated by both traditional and incarceration-specific risk factors related to their environment. In this Viewpoint, we summarize what is known about the epidemiology and management of acute CV events, specifically acute myocardial infarction (AMI), congestive heart failure exacerbation (CHFe), and stroke, among people who are incarcerated. We also highlight gaps in available evidence. Our literature review found no studies that provided population-based rates (e.g., events per 1,000 incarcerated persons per year) of AMI, CHFe, or stroke in people who are incarcerated. Similarly, we did not identify any empirical studies that systematically described the treatment of AMI, CHFe, or stroke in this population. We outline a series of research studies that should be conducted to inform future interventions and guide quality improvement efforts.

Abstract 4138788: Outcomes of Percutaneous Coronary Interventions Following Transcatheter Aortic Valve Replacement: Insights from the National Cardiovascular Data Registry (NCDR) CathPCI Registry

Background: Although transcatheter aortic valve replacement (TAVR) devices can impair coronary access, there are limited real-world data on rates of percutaneous coronary intervention (PCI) and PCI outcomes in post-TAVR patients. Research Question: How often do patients who undergo TAVR develop coronary events, and do they have different procedural characteristics or rates of adverse events when undergoing PCI compared to patients without a TAVR? Methods: We used CMS claims data for the Medicare fee-for-service population to evaluate the incidence of PCI after TAVR between 2011-2017. Then, using data from the NCDR CathPCI Registry linked with Medicare claims, we compared procedural characteristics and PCI outcomes between patients with a history of TAVR vs. propensity-matched patients who did not have a history of TAVR. Results: Of the 52,780 Medicare fee-for-service patients who underwent TAVR between 2011-2017, the incidence of acute myocardial infarction (AMI) was 10.6% and of PCI was 5.4% at five years. Among those patients, 5.6% had a PCI in the three months preceding their TAVR. After propensity-score matching, the procedural success rates for PCI were similar between patients with vs. without a history of TAVR. However, in the propensity-matched comparison, PCI in post-TAVR patients required greater fluoroscopic time (21.9 vs 17.7 mins, p<0.001) and was associated with a greater incidence of post-procedural stroke (0.8% vs 0.4%, p=0.02) and bleeding (5.1% vs 2.9%, p < 0.001). At three-year follow-up post-PCI, there were no differences in the rates of AMI between patients with vs. without a history of TAVR (HR: 1.22, 95% C.I.: 0.97, 1.54, p=0.08). However, patients with prior TAVR were more likely to have repeat PCI in the three years following their index procedure (HR: 1.38, 95% C.I.: 1.12, 1.73, p=0.003). Conclusion: Among Medicare fee-for-service patients, one in 20 patients undergoing TAVR subsequently underwent PCI within 5 years. Although the rates of procedural success were similar, patients with a history of TAVR who underwent PCI had longer fluoroscopic times, more frequent in-hospital adverse events, and a higher likelihood of a repeat PCI compared with matched patients without a history of TAVR.

Abstract 4125157: Efficacy of Adding Sodium-Glucose Co-Transporter 2 Inhibitor versus Standard Therapy Alone in Post-Percutaneous Coronary Intervention Patients: A Systematic Review and Meta-Analysis

Background: Recent evidence suggests that sodium-glucose cotransporter-2 inhibitors (SGLT2-i) may improve outcomes in patients with coronary artery disease (CAD) through various physiological pathways. However, their impact on patients who have undergone percutaneous coronary intervention (PCI) is not well established. This meta-analysis aims to evaluate the effectiveness of additive SGLT2 inhibitors versus standard therapy alone in patients with CAD after PCI. Methods: A systematic search was conducted across the Medline, Embase, and Cochrane Library databases for randomized controlled trials (RCTs) and observational studies that compared the addition of SGLT2 inhibitors to standard therapy versus standard therapy alone in patients post-PCI. The outcomes analyzed were Major Adverse Cardiovascular Events (MACE), all-cause death, cardiovascular death, recurrent acute myocardial infarction (AMI), nonfatal stroke, revascularization, and hospitalization for heart failure (HF). Results: A total of 7 studies met the inclusion criteria, encompassing a total of 11,800 individuals (5,004 on SGLT2-i and 6,796 non-SGLT2-i; mean age of 62.7 years; 28% women; 95% diabetic patients). SGLT2 inhibitors significantly reduced the risk of all-cause mortality (RR 0.6, 95% CI: 0.5-0.72, p<0.01), cardiovascular death (RR 0.39, 95% CI: 0.16-0.94, p=0.03) and hospitalization for HF (RR 0.55, 95% CI: 0.4-0.76, p<0.01) compared to standard therapy alone. The occurrence of the composite endpoint (MACE) (RR 0.67, 95% CI: 0.44-1.01, p=0.056), any revascularization (RR 0.93, 95% CI: 0.57-1.53, p=0.784), recurrent AMI (RR 0.70, 95% CI: 0.41-1.18, p=0.176) and stroke (RR 0.94, 95% CI: 0.68-1.30, p=0.717) did not differ significantly between groups. Conclusions: Adding SGLT2 inhibitors to standard therapy significantly improved cardiovascular outcomes in patients with CAD who have undergone PCI, including reduced mortality and hospitalization for HF rates, with similar rates of recurrent AMI, coronary revascularization and stroke. These findings support the consideration of adding SGLT2 inhibitors as part of the therapeutic regimen for post-angioplasty patients, especially those with diabetes.

Severe infections as risk factors for acute myocardial infarction: a nationwide, Danish cohort study from 1987 to 2018

Abstract Aims Infections have been associated with acute myocardial infarction (AMI), but differences in risk between infection types and age groups are unclear. This study aims to investigate whether infections are associated with subsequent AMI and whether the risk differs across infection sites and age groups. Methods and results Nationwide registers were used to include 702 596 adults hospitalized between 1987 and 2018 with either pneumonia (n = 344 319), urinary tract infection (UTI) (n = 270 101), soft tissue/bone infection (n = 66 718), central nervous system (CNS) infection (n = 17 025), or endocarditis (n = 4433). Patients were sex and age matched with two unexposed controls. Outcome was first-time AMI within 10 years. A time-dependent Cox proportional hazards model with cut-offs at 30 and 90 days was used for calculating adjusted hazard ratios (HRs). Pneumonia, UTI, and soft tissue/bone infection were associated with increased relative rates of AMI compared to matched, unexposed controls. Highest relative rates were found within the first 0–30 days post-exposure: pneumonia: HR 3.39 [95% confidence interval (CI) 3.15–3.65]; UTI: HR 2.44 (95% CI 2.21–2.70); soft tissue/bone infection: HR 1.84 (95% CI 1.45–2.33). Relative rates decreased over time but remained significantly elevated throughout the follow-up period and were increased in all age groups. No association was found for CNS infection and for endocarditis only at 31–90 days, HR 2.28 (95% CI 1.20–4.33). Conclusion Acute infections are associated with increased relative rates of AMI across different infection sites and age groups with higher relative rates found for pneumonia. This indicates that some infections may act as a trigger for AMI with a site and/or pathogen specific risk.

Trend of incidence rate of acute myocardial infarction in Tengzhou City, Shandong Province, from 2013 to 2021

The surveillance data of new cases of acute myocardial infarction (AMI) from January 1, 2013, to December 31, 2021, in Tengzhou City, Shandong Province, were used to analyze the incidence rate of AMI and its change trend among residents. The age and gender standardized incidence rate was calculated based on the 7th National Population Census 2020. The Cochran-Armitage trend test was used to analyze the trend of onset time and age. From 2013 to 2021, the crude and standardized incidence rate of total AMI in Tengzhou City declined from 130.07/100 000 and 161.12/100 000 to 76.15/100 000 and 72.77/100 000 (Z=-13.785 and -20.822, both P<0.001). The crude and standardized incidence rates of males were higher than those of females. In 2016, males aged 45-54 years old and females aged 35-64 years old increased by 33.33%, 103.65%, 106.30%, and 95.75% compared to 2015, and the differences were statistically significant (χ2=6.512, 4.965, 25.115, and 46.004, all P<0.05). The incidence rate of AMI in men aged<35 and 35-44 years old had an upward trend. From 2013 to 2021, the incidence rate of AMI decreased by 55.15% in urban areas and 36.59% in rural areas (Z=-8.529 and -11.235, both P<0.001).

Incidence of cardiovascular disease in a cohort of mine workers exposed to ultrafine aluminum powder in Ontario, Canada.

A retrospective cohort study was conducted to estimate associations between an ultrafine aluminum powder, McIntyre Powder (MP), and cardiovascular disease incidence in a cohort of mine workers from Ontario, Canada. Disease outcomes included ischemic heart disease (IHD), acute myocardial infarction (AMI), congestive heart failure (CHF), and strokes and transient ischemic attacks (STIA). Using work history records from the Ontario Mining Master File (MMF) mine workers were followed for disease incidence in administrative health records. The analysis included 25,813 mine workers who were exposed to MP between 1943 and 1979 and followed for cardiovascular disease (CVD) diagnoses between 2006 and 2018. Cardiovascular disease cases were ascertained using physician, hospital, and ambulatory care records. Poisson regression models were used to estimate age and birth-year adjusted incidence rate ratios (RR) and 95% confidence intervals (CI) for associations between MP exposure and CVD outcomes. Ever-exposure to MP was positively associated with modest increases in the incidence rate of IHD, AMI, and CHF, but not STIA, using both assessment approaches. Duration of self-reported MP exposure was positively associated with monotonically increasing rates of IHD and AMI compared to never-exposed miners, with the greatest association observed among miners with >20 years of exposure (for IHD: RR 1.24, 95% CI: 0.91-1.68; and for AMI: RR 1.52, 95% CI 1.01-2.28). Mine workers ever-exposed to MP had modestly elevated rates of CVD. The rate of CVD diagnoses appeared to increase with longer duration of exposure when assessed by both self-reported exposure and through historical records.

Adenosine deaminase is a risk factor for mortality after discharge in patients with acute myocardial infarction: Long-term clinical follow-up

BackgroundVariations in adenosine deaminase (ADA) activity have been detected in numerous cardiovascular diseases (CVDs), but there is limited research on its role in the prognosis of CVDs. In this study, we explored the role of ADA in the prognosis of patients with acute myocardial infarction (AMI). MethodIn this study, a total of 1,574 patients with a first diagnosis of acute myocardial infarction (AMI) were followed up for a median (interquartile range [IQR]) of 77.0 (50.0, 95.0) months after discharge. Cox proportional hazards regression models were used to identify factors that are substantially valuable for patient prognosis. ResultsDuring the follow-up period, the mortality rate of AMI was 12.5 %. The 3-year and 5-year overall survival (OS) rates of AMI patients were 93.8 % and 91.0 %, respectively. Multivariate Cox regression analysis revealed that serum ADA (hazard ratio [HR] = 1.166, 95 % confidence interval [CI]: 1.006–1.352) was an independent risk factor for 5-year OS after discharge in AMI patients. When serum ADA was assessed in quartiles, compared with the reference group (Quartile 1), the adjusted HR for death was 2.498 (95 % CI: 1.344–4.642) in Quartile 4 for 5-year OS and 2.508 (95 % CI: 1.145–5.496) in Quartile 4 for 3-year OS. ConclusionsSerum ADA levels at admission are a risk factor that affects the long-term prognosis of AMI patients after hospital discharge.

Inpatient mortality and outcomes of COVID-19 among patients with non-ischemic cardiomyopathy: A propensity matched analysis

BackgroundPatients with chronic medical conditions, particularly cardiovascular diseases, are at a greater risk of adverse outcomes due to COVID-19. The effect of COVID-19 on patients with non-ischemic cardiomyopathy (NICM) is not known well. ObjectivesTo study the impact of COVID-19 infection on NICM hospital mortality and other outcomes. MethodsThis study included a cohort of patients from the 2020 and 2021 National Inpatient Sample databases. Patients hospitalized for COVID-19 with and without NICM were matched using a 1:1 propensity score-matching ratio. Outcomes analyzed were in-hospital mortality, rates of acute kidney injury (AKI), acute myocardial infarction (AMI), cardiogenic shock, cardiac arrest, mechanical ventilation, tracheal intubation, pulmonary embolism (PE), ventricular tachycardia (VT), ventricular fibrillation (VF), length of stay (LOS), and total hospitalization charges. ResultsA total of 2,532,652 patients met the inclusion criteria (1,199,008 females [47.3 %], predominantly white 1,456,203 (57.5 %); mean [SD] age 63 [5.4] years), including 64,155 (2.5 %) patients with a history of NICM. Following propensity matching, 10,258 COVID-19 patients with and without NICM were matched. Patients with NICM had higher rates of AMI (11.1 vs. 7.1 %, p < 0.001), cardiogenic shock (2 vs. 0.6 %, p < 0.001), cardiac arrest (4.4 vs. 3.2 %, p < 0.01), mechanical ventilation (13.7 vs 12 %, p < 0.01), VT (8.5 vs. 2.2 %, p < 0.001), and VF (1.0 vs 0.25 %, p < 0.001). The odds ratios for in-hospital mortality, AKI, and PE did not differ significantly. ConclusionA History of NICM does not affect COVID-19 mortality but increases the risk of cardiovascular complications.

Diagnostic Performance of Cardiac Stress Testing Following Exclusion of Acute Myocardial Infarction with a 0/1-Hour, High-Sensitivity Cardiac Troponin Protocol

Background: Rapid exclusion of acute myocardial infarction (AMI) is critical for patients presenting to emergency departments (EDs) with chest pain or other anginal equivalents. High-sensitivity cardiac troponin (hs-cTn) protocols have been widely adopted in the United States for this purpose. These protocols allow for early identification and exclusion of patients with AMI using a 0 and 1-hour hs-cTn measurement. However, little is known about the use of cardiac stress testing in patients who ruled-out for AMI within 1 hour with very low hs-cTn values. This study analyzed the diagnostic performance of cardiac stress tests in this population. Methods: We performed a secondary analysis of the RACE-IT trial, a stepped-wedge cluster randomized trial performed across 9 EDs in a large metropolitan health system from July 2020 through March 2021. The eligibility criteria for the trial mirrored the real-world use of hs-cTn testing, including both patients complaining of chest pain and/or other anginal equivalents. All adults with a hs-cTnI and electrocardiogram (ECG) completed in the ED were enrolled, while patients with ST- segment elevation AMI, trauma, or pregnancy were excluded. In the interventional arm of the trial, AMI was excluded if hs-cTnI was &lt;4 ng/L at presentation or =4 ng/L at presentation with a 1-hour value &lt; 8 ng/L. The trial followed all patients through 30 days to assess for AMI or death and captured all cardiac testing. We compared stress testing results to invasive coronary imaging with or without revascularization. Results: 10,444 study patients (43.61%) ruled out for AMI in the ED within 1 hour and were included in this analysis. There were 320 (3.0%) patients who had a stress test within 30 days, with few ischemic findings (25, 0.24%) or revascularization procedures (5, 0.05%). The positive predictive value of stress testing in this population to identify the need for revascularization was 10.1% (95% CI 2.8% - 29.4%). Table 1 displays the proportion of ischemic stress tests and overall test performance in this population. The rate of 30-day death or AMI was low (17, 0.20%) among those discharged from the ED or placed in observation (n=8,553). Conclusions: Our study highlights the infrequent use and low diagnostic yield of stress testing in patients who have been ruled out for AMI within 1 hour using an accelerated hs-cTn protocol in the ED.

Exploring the Link between Head and Neck Cancer and the Elevated Risk of Acute Myocardial Infarction: A National Population-Based Cohort Study.

Enhanced screening protocols for cancer detection have increased survival in patients with head and neck cancer (HNC), which highlights the need to address the sequelae of therapy-induced cardiovascular complications. This study was conducted to assess the incidence and risk of acute myocardial infarction (AMI) in patients with HNC who have not undergone radiation or chemotherapy using a comprehensive, population-based cohort dataset. A total of 2976 individuals without cancer and 744 individuals with HNC were matched using the propensity score method. The findings indicated that the occurrence rates of AMI were comparable between the HNC (2.19) and non-cancer groups (2.39). Cox regression analysis did not demonstrate a significant increase in the risk of AMI in patients with HNC (hazard ratio: 0.93, 95% confidence interval: 0.50-1.73). No increased risk of AMI was observed in the HNC group compared to the non-cancer group, regardless of the time since the HNC diagnosis. Subgroup analyses showed no notable differences in the AMI risk between the groups when considering sex, age, comorbidities, and cancer type. This study showed that patients with HNC who have not been treated with radiation or chemotherapy did not exhibit an increased incidence or risk of AMI compared to individuals without cancer.

Disparities and Outcomes in the First and Second Year of the Pandemic on Events of Acute Myocardial Infarction in Coronavirus Disease 2019 Patients.

Background and Objectives: Coronavirus disease 2019 (COVID-19) caused several cardiovascular complications, including acute myocardial infarction (AMI), in infected patients. This study aims to understand the overall trends of AMI among COVID-19 patients during the first two years of the pandemic and the disparities and outcomes between the first and second years. Materials and Methods: The retrospective analysis was conducted via the 2020 and 2021 National Inpatient Sample (NIS) database for hospitalizations between April 2020 and December 2021 being analyzed for adults with a primary diagnosis of COVID-19 who experienced events of AMI. A comparison of month-to-month events of AMI and mortality of AMI patients with concomitant COVID-19 was made alongside their respective patient characteristics. Results: Out of 2,541,992 COVID-19 hospitalized patients, 3.55% experienced AMI. The highest rate of AMI was in December 2021 (4.35%). No statistical differences in trends of AMI mortality were noted over the 21 months. AMI cases in 2021 had higher odds of undergoing PCI (aOR 1.627, p < 0.01). They experienced higher risks of acute kidney injury (aOR 1.078, p < 0.01), acute ischemic stroke (aOR 1.215, p < 0.01), cardiac arrest (aOR 1.106, p < 0.01), need for mechanical ventilation (aOR 1.133, p < 0.01), and all-cause mortality (aOR 1.032, 95% CI 1.001-1.064, p = 0.043). Conclusions: The incidence of AMI among COVID-19 patients fluctuated over the 21 months of this study, with a peak in December 2021. COVID-19 patients reporting AMI in 2021 experienced higher overall odds of multiple complications, which could relate to the exhaustive burden of the pandemic in 2021 on healthcare, the changing impact of the virus variants, and the hesitancy of infected patients to seek care.

Explore the effect of apparent temperature and air pollutants on the admission rate of acute myocardial infarction in Chongqing, China: a time-series study

ObjectiveLimited research has been conducted on the correlation between apparent temperature and acute myocardial infarction (AMI), as well as the potential impact of air pollutants in modifying this relationship. The...

Developing a national surveillance system for stroke and acute myocardial infarction using claims data in the Republic of Korea: a retrospective study.

Limited information is available concerning the epidemiology of stroke and acute myocardial infarction (AMI) in the Republic of Korea. This study aimed to develop a national surveillance system to monitor the incidence of stroke and AMI using national claims data. We developed and validated identification algorithms for stroke and AMI using claims data. This validation involved a 2-stage stratified sampling method with a review of medical records for sampled cases. The weighted positive predictive value (PPV) and negative predictive value (NPV) were calculated based on the sampling structure and the corresponding sampling rates. Incident cases and the incidence rates of stroke and AMI in the Republic of Korea were estimated by applying the algorithms and weighted PPV and NPV to the 2018 National Health Insurance Service claims data. In total, 2,200 cases (1,086 stroke cases and 1,114 AMI cases) were sampled from the 2018 claims database. The sensitivity and specificity of the algorithms were 94.3% and 88.6% for stroke and 97.9% and 90.1% for AMI, respectively. The estimated number of cases, including recurrent events, was 150,837 for stroke and 40,529 for AMI in 2018. The age- and sex-standardized incidence rate for stroke and AMI was 180.2 and 46.1 cases per 100,000 person-years, respectively, in 2018. This study demonstrates the feasibility of developing a national surveillance system based on claims data and identification algorithms for stroke and AMI to monitor their incidence rates.

Incidence and case fatality of acute myocardial infarction in Korea, 2011-2020.

Cardiovascular diseases are a leading cause of mortality worldwide, and acute myocardial infarction (AMI) is particularly fatal condition. We evaluated the incidence and case fatality rates of AMI in Korea from 2011 to 2020. We utilized data from the National Health Insurance Services to calculate crude, age-standardized, and age-specific incidence rates, along with 30-day and 1-year case fatality rates, of AMI from 2011 to 2020. Age-standardized incidence rates were determined using direct standardization to the 2005 population. The crude incidence rate of AMI per 100,000 person-years consistently increased from 44.7 in 2011 to 68.3 in 2019, before decreasing slightly to 66.2 in 2020. The age-standardized incidence rate of AMI displayed a 19% rise from 2011 to 2019, followed by a slight decline in 2020. The increasing trend for AMI incidence was more pronounced in males than in females. Both 30-day and 1-year case fatality rates remained stable among younger individuals but showed a decrease among older individuals. There was a minor surge in case fatality in 2020, particularly among recurrent AMI cases. Over the past decade, the AMI incidence rate in Korea has consistently increased, with a slight downturn in 2020. The case fatality rate has remained relatively stable except for a minor increase in 2020. This study provides data for continuous surveillance, the implementation of targeted interventions, and the advancement of research aimed at AMI in Korea.

Comparison of long-term outcome in patients with in-stent restenosis treated with intravascular lithotripsy or with modified balloon angioplasty.

Modified balloon angioplasty (MB) using a cutting-/scoring balloon or intravascular lithotripsy (IVL) is used in patients with in-stent restenosis (ISR). However, IVL is an off-label use in this setting. The aim of this subgroup analysis of an all-comers registry was to compare IVL to MB angioplasty in patients with ISR. The subgroup (n = 117) included all patients with an ISR treated by MB or IVL between 2019 and 2021. Primary endpoint was strategy success (< 20% residual stenosis). The secondary endpoint was cardiac death, acute myocardial infarction (AMI) and target lesion failure/revascularization (TVR). Quantitative coronary angiography was performed in all patients. A total of n = 36 patients were treated by IVL and n = 81 patients by MB. No significant differences in baseline characteristics were observed between the groups. The primary endpoint was reached in 99 patients (84.6%). Patients in the IVL group had less residual stenosis (2.8% vs. 21.0%; p = 0.012). Multivariate regression analysis revealed that IVL had a significant positive effect on reaching the primary end point (Estimate 2.857; standard error (SE) 1.166; p = 0.014). During the follow-up period (450days) there were no significant differences in rates of cardiac death (IVL n = 2 (1.7%) vs. MB n = 3 (2.6%); p = 0.643), AMI (IVL n = 2 (1.7%) vs. MB n = 4 (3.4%); p = 0.999) and TVR (IVL n = 5 (4.3%) vs. MB n = 14 (12%); p = 0.851). IVL results in a significantly lower rate of residual stenosis than MB in patients with ISR. During the long-term follow-up, no differences in rates of cardiac death, AMI or TVR were observed.

Hepatic and Renal Outcomes in Systemic Lupus Erythematosus Patients following Coronary Artery Bypass Grafting: A Study from the National Inpatient Sample

Background and Aim of the Study. While several studies have suggested a relationship between adverse postoperative outcomes and systemic lupus erythematosus (SLE) in major surgical settings, no study to date has explored postoperative outcomes of SLE patients undergoing coronary artery bypass grafting (CABG). This study aimed to compare the characteristics and outcomes of SLE patients compared to non-SLE patients undergoing CABG. Methods. We utilized the Nationwide Inpatient Sample (NIS) data from 2008–2018 for CABG patients ≥18 years old. Patients were divided into two groups based on SLE status (confirmed SLE diagnosis or no SLE present). Primary outcomes were in-hospital mortality, favorable discharge, and length of stay (LOS). Secondary outcomes included acute kidney injury (AKI), acute liver injury (ALI), hemodialysis, acute myocardial infarction (AMI), and cardiogenic shock. Patient characteristics including age, sex, race, and preexisting comorbidities were considered. Multivariable models, adjusting for confounding variables, were utilized. Results. Data from a total of 352,772 patients who underwent CABG were analyzed. 980 patients had a diagnosis code for SLE. SLE and non-SLE patients had similar rates of in-hospital mortality (OR = 0.92, [0.63–1.35]), nonhome discharge (OR = 1.09, [0.95–1.24]), and LOS (OR = 1.02, [0.99–1.06]). SLE patients developed AKI at a higher rate (OR = 1.50, [1.05–1.48]) and ALI at a lower rate (OR = 0.35, [0.16–0.74]). Both groups had similar rates of hemodialysis (OR = 1.19, [0.98–1.44]), AMI (OR = 0.93, [0.81–1.06]), and cardiogenic shock (OR = 0.8, [0.61–1.05]). Conclusion. These findings suggest that SLE patients undergoing CABG have similar mortality, discharge disposition, and LOS compared to non-SLE patients. However, SLE patients are at increased risk of AKI and decreased risk of ALI than non-SLE patients. These associations warrant further investigation to elucidate their physiologic basis.

Monoclonal Gammopathy of Undetermined Significance and Associated Cardiovascular Outcomes in a Hospital Setting - a Fresh Perspective

Introduction: A growing body of evidence has confirmed the association between monoclonal gammopathy of undetermined significance (MGUS) and a variety of diseases including bone disease, renal impairment, autoimmune disorders, neuropathies, secondary immunodeficiencies, and infections. Recently, there has been an emerging focus on cardiovascular (CV) outcomes in patients with MGUS. However, they have not been investigated well, especially among hospitalized patients. In our study, we investigated the association between MGUS and cardiovascular outcomes in a hospital setting using the National Inpatient Sample database. Methods: MGUS patients were sampled using ICD-10 codes. Patients less than the age of 18 years, those with missing data, and those with concomitant multiple myeloma, smoldering multiple myeloma, B-cell lymphomas, non-Hodgkin lymphomas, amyloidosis, and Waldenstrom's macroglobulinemia were excluded . Patients were stratified into two cohorts based on the presence or absence of MGUS. Comorbidities and CV outcomes were collected using ICD 10 DM codes. CV outcomes were evaluated before and after 1:1 matching for age, gender, and race. Furthermore, a sensitivity analysis was performed where all individuals with a history of diabetes mellitus (DM), prior myocardial infarction, hypertension, chronic kidney disease (CKD) stage 3-5, dialysis-dependence, obesity, metabolic syndrome, cancer (all-cause), antiplatelet or oral anticoagulant use were excluded. CV outcomes were then reevaluated using multivariate logistic regression to adjust for smoking, dyslipidemia, and aspirin use. P-values &amp;lt; 0.05 was considered statistically significant. Results: Out of a total of 17,357,556 patients included in the study, 23,435 patients had MGUS (0.1%). MGUS patients tended to be older, male, smokers, and Caucasian. Additionally, MGUS patients tended to have more DM (39.2% vs 27.9%), CKD (33.6% vs 8.6%), dialysis-dependence (13.3% vs 4%), obesity (18% vs 16.5%), dyslipidemia (39.1% vs 23.3%), metabolic syndrome (18.9% vs 10.4%), and cancer (12.9% vs 8.1%) when compared to non-MGUS patients. Aspirin, antiplatelets, and anticoagulant use were more prevalent in the MGUS patients when compared to non-MGUS patients. MGUS patients had more heart failure (36.8% vs 17.2%;p&amp;lt;0.001), atrial fibrillation (10% vs 5.9%;p&amp;lt;0.001), venous thromboembolism (VTE) (2.8% vs 1.6%;p&amp;lt;0.001), aortic aneurysm (2.2% vs 1%;p=0.005), aortic stenosis (4.0% vs 1.6%;p&amp;lt;0.001), aortic regurgitation (1.2% vs 0.5%;p&amp;lt;0.001), mitral stenosis (0.3% vs 0.1%;p=0.009), mitral regurgitation (3.5% vs 1.5%;p&amp;lt;0.001), conduction disorder (6.6% vs 3.3%;p=0.002), cor-pulmonale (0.4% vs 0.2%;p&amp;lt;0.001), peripheral vascular disease (PVD) (14.4% vs 5.6%;p&amp;lt;0.001), and acute myocardial infarction (MI) (4.5% vs 3.6%;p&amp;lt;0.001). There were no significant differences in ischemic stroke/transient ischemic attack (TIA) and aortic dissection rates among both groups. The matched model corroborated several of our unmatched findings that MGUS was associated with higher heart failure, atrial fibrillation, VTE, aortic stenosis, mitral regurgitation, conduction disorder, cor-pulmonale, and PVD. Acute MI and ischemic stroke/TIA rates were negatively associated with MGUS in our matched model. Finally, sensitivity analysis showed that MGUS was still associated with higher rates of heart failure, atrial fibrillation, VTE, aortic regurgitation, and PVD, but decreased ischemic stroke/TIA and acute MI rates. Conclusion: In conclusion, our study found that patients with MGUS are at an increased risk of a wide spectrum of cardiovascular diseases in a hospital setting. MGUS patients may benefit from cardiovascular screening tools like electrocardiograms and echocardiograms at the hospital as this disease is independently associated with cardiovascular outcomes. Additional studies are needed to corroborate these findings as this will have implications on monitoring and screening of cardiovascular complications in MGUS patients.

Abstract 13510: Clinical Characteristics and In-Hospital Outcomes of Patients With Myocardial Infarction With Non-Obstructive Coronary Arteries in Japan -Lessons From the Real-World Database of JAMIR-

Background: A certain percentage of patients with acute myocardial infarction (AMI) do not have significant stenosis and they are termed as "myocardial infarction with nonobstructive coronary arteries (MINOCA)”. However, there were few studies representing MINOCA patients in the era of coronary intervention, in Asia in particular. Aims: We aimed to elucidate the clinical characteristics and in-hospital outcomes of patients with MINOCA in Japan by using a real-world database. Methods: The Japan Acute Myocardial Infarction Registry (JAMIR) is a nationwide, real-world multi-center registry study. We retrospectively analyzed 22,236 AMI patients (68±13 years, female 23.4%) enrolled in the JAMIR between 2011 and 2016. Results: Of those, 286 patients (1.3%) were diagnosed as MINOCA following coronary angiography and the remaining 21,950 patients (98.7%) were inevitably as myocardial infarction with obstructive coronary artery disease (MI-CAD). MINOCA patients were characterized by younger age, higher prevalence of women, fewer coronary risk factors, lower rate of ST-elevation AMI, lower Killip classes, and lower peak creatinine phosphokinase levels as compared to those with MI-CAD. In-hospital all-cause mortality was not different between MINOCA and MI-CAD groups (5.2% vs. 5.7%, P=0.82, OR adjusted by age and sex 1.06; 95%CI [0.63-1.80]), meanwhile non-cardiac mortality was significantly higher in the MINOCA group (4.2% vs. 1.6%, P&lt;0.01, adjusted OR 3.14; 95%CI [1.74-5.68]) ( Figure A ). Importantly, non-cardiac mortality increased with age in the MI-CAD group, whereas this did not apply in the MINOCA group ( Figure B ). Conclusions: The large-scale real-world database JAMIR demonstrated high prevalence of non-cardiac death in MINOCA, which indicate a clinical significance of comprehensive evaluations concerning underlying pathophysiological mechanisms of myocardial injury, especially in the younger patient group.

Urine antimony and risk of cardiovascular disease – A prospective case-cohort study in Danish Non-Smokers

BackgroundLimited evidence suggests that antimony induces vascular inflammation and oxidative stress and may play a role in cardiovascular disease (CVD) risk. However, few studies have examined whether environmental antimony from sources other than tobacco smoking is related with CVD risk. The general population may be exposed through air, drinking water, and food that contains antimony from natural and anthropogenic sources, such as mining, coal combustion, and manufacturing. ObjectivesTo examine the association of urine antimony with incident acute myocardial infarction (AMI), heart failure, and stroke among people who never smoked tobacco. MethodsBetween 1993 and 1997, the Danish Diet, Cancer and Health (DCH) cohort enrolled participants (ages 50–64 years), including n = 19,394 participants who reported never smoking at baseline. Among these never smokers, we identified incident cases of AMI (N = 809), heart failure (N = 958), and stroke (N = 534) using the Danish National Patient Registry. We also randomly selected a subcohort of 600 men and 600 women. We quantified urine antimony concentrations in samples provided at enrollment. We used modified Cox proportional hazards models to estimate adjusted hazard ratios (HR) for each incident CVD outcome in relation to urine antimony, statistically adjusted for creatinine. We used a separate prospective cohort, the San Luis Valley Diabetes Study (SLVDS), to replicate these results. ResultsIn the DCH cohort, urine antimony concentrations were positively associated with rates of AMI and heart failure (HR = 1.52; 95%CI = 1.12, 2.08 and HR = 1.58; 95% CI = 1.15, 2.18, respectively, comparing participants in the highest (>0.09 µg/L) with the lowest quartile (<0.02 µg/L) of antimony). In the SLVDS cohort, urinary antimony was positively associated with AMI, but not heart failure. DiscussionAmong this sample of Danish people who never smoked, we found that low levels of urine antimony are associated with incident CVD. These results were partially confirmed in a smaller US cohort.

Incidence and In-Hospital Mortality of Acute Myocardial Infarction: A Report from a Population-Based Registry in Japan.

To investigate the incidence and in-hospital mortality of acute myocardial infarction (AMI) by conforming to the Universal Definition of Myocardial Infarction (UDMI) in a population-based registry. The Shiga Stroke and Heart Attack Registry is a multicenter, population-based registry in the Shiga Prefecture, designed to evaluate the incidence and prognosis of acute cerebro-cardiovascular diseases. We registered patients with AMI as defined by the UDMI, who developed AMI from January 2014 to December 2015 in the Shiga Prefecture. The incidence rate of AMI was calculated and standardized for age by a direct method using the 2015 Japanese population. We also evaluated the in-hospital mortality among hospitalized patients with ST-elevation myocardial infarction (STEMI) and non-STEMI (NSTEMI). A total of 1,587 patients were diagnosed with AMI, and the age-adjusted incidence rate was 61.9 per 100,000 person-years. The proportions of patients with STEMI, NSTEMI, and type 3 myocardial infarction were 57%, 30%, and 12%, respectively. The incidence rates of AMI increased with age regardless of sex, which was the highest in those 85 years and older, with 389.7 per 100,000 person-years in men and 221.8 per 100,000 person-years in women. Age-adjusted in-hospital mortality among hospitalized patients with STEMI and NSTEMI was 12.3% and 5.8%, respectively. This population-based registry clarified the age-adjusted incidence rate of AMI under the application of the UDMI, highlighting that in-hospital mortality is still high among patients with STEMI in Japan.