Incidence Of Ischemic Heart Disease Research Articles

The Combination of Uric Acid and Hemoglobin Levels Predicts the Incident Risk of Ischemic Heart Disease More Than Uric Acid Alone in Non-Diabetic Koreans: A Longitudinal Study Using National Health Insurance Data.

Uric acid has been related to cardiovascular disease (CVD). Recently, slightly elevated hemoglobin (Hb) was also shown to be associated with CVD. We retrospectively investigated the joint effect of uric acid and elevated Hb by comparing normal-range uric acid alone on incident ischemic heart disease (IHD) risk in a large cohort of non-diabetic Korean adults using National Health Insurance data. We assessed 16,786 participants without diabetes (8595 men and 8191 women) using extensive cohort data. High Hb was defined as ≥16.4 g/dL in men and 13.8 g/dL in women (>75th percentile). We analyzed the data using two different methods. First, the participants were divided into quartiles according to uric acid levels. Second, subjects were also divided into quartiles: reference (group 1), high uric acid and normal Hb (group 2), normal uric acid and high Hb (group 3), and normal uric acid and high Hb (group 4). We evaluated hazard ratios (HRs) with 95% confidence intervals (CIs) for IHD using multivariate Cox regression analysis over a 50-month follow-up. During the follow-up, 345 (1.9%) participants developed IHD. In the analysis using both uric acid and Hb, compared with the reference group, the HRs for IHD were 1.37 (95% CI, 1.01-1.86) in the second group, 1.63 (95% CI, 1.21-2.21) in the third group, and 1.86 (95% CI, 1.30-2.67) in the fourth group after adjusting for IHD risk factors. Subsequently, patients with high uric acid are more likely to develop incident IHD than control patients. Moreover, we confirmed the joint effects of high uric acid and high hemoglobin on incident IHD. Awareness of these interactions is essential for clinicians. Risk factor management and screening for IHD are part of the routine management of patients with high uric acid and Hb.

Explaining the increase of incidence and mortality from cardiovascular disease in Indonesia: A global burden of disease study analysis (2000–2019)

Background In the last two decades, there has been a discernible shift in the distribution of mortality attributed to cardiovascular disease (CVD) between developing and developed nations; in developed nations, the percentage of deaths caused by CVD decreased from 48% in 1990 to 43% in 2010, while in developing nations, they increased from 18% to 25%. In Indonesia, CVD death has increased substantially and remained elevated in the last ten years. Current behavioral and metabolic risk factors, including hyperglycemia, obesity, dyslipidemia, hypertension, and smoking, enhance the risk of CVD mortality, according to several studies. Aims We undertook a study to determine whether the increase in mortality and incidence of CVD can be attributed to changes in the most common metabolic and behavioral risk factors from 2000 to 2019 across 34 Indonesian provinces. Materials and methods Data from 34 province for CVD incidence and mortality and data on changes in metabolic and behavioural risk factors between 2000 and 2019 in Indonesia were obtained from the Global Burden study (GBD) by The Institute of Health Metrics and Evaluation (IHME). A statistical model was applied to calculate the fatalities attributable to the risk factors change using Population attributable fractions (PAF) and baseline year death numbers. Furthermore, we ran multivariate regressions on Summary Exposure Value of risk factors associated with the increasing mortality, incidence rates in a lag year analysis. R software used to measure heteroscedasticity-consistent standard errors with coeftest and coefci. Covariates were added to adjusted models, including the Socio-demographic Index, Primary health care facilities coverage, and GDP per capita. Results The age-standardized mortality rate for CVD from 2000 to 2019 in Indonesia, increased from 356.05 to 412.46 deaths per 100,000 population among men and decreased from 357.52 to 354.07 deaths per 100,000 population among women, resulting in an increase of 270.928 per 100,0000 inhabitants of CVD deaths. In the same period, there was an increase in exposure to risk factors such as obesity by +9%, smoking by +1%, dyslipidemia by +1.3%, hyperglycemia by +2%, and hypertension by +1.2%. During this time span, an additional 14,517 men and 17,917 women died from CVD, which was attributable to higher obesity exposure. We apply multivariate regression with province-fixed and year-fixed analysis and find strong correlation between hyperglycemia in women (6; 95%CI 0 to 12, death per 1-point increase in hyperglycemia exposure) with an increasing death rate in ischemic heart disease. We also performed a year lag analysis and discovered a robust association between high low density lipoprotein (LDL) levels in men and women and the growing incidence of ischemic heart disease. The association between a 10-year lag of high LDL and the incidence of ischemic heart disease was five times stronger than that observed for other risk factors, particularly in men (5; 95%CI 2 to 8, incidence per 1-point increase in high LDL exposure). Conclusion Hyperglycemia in women is an important risk factor associated with increasing mortality due to Ischemic Heart Disease (IHD) in Indonesia This study also revealed that the presence of high LDL in both men and women were associated with an increase incidence of IHD that manifested several years subsequent to exposure to the risk factor. Additionally, the highest cardiovascular death portion were attributed to obesity. These findings suggest that policymakers should control high LDL and hyperglycemia 10 years earlier prior to the occurrence of IHD and employ personalized therapy to regulate associated risks.

Cumulative Diastolic Blood Pressure Burden in Normal Systolic Blood Pressure and Cardiovascular Disease.

The clinical significance of isolated diastolic hypertension defined by the 2017 American College of Cardiology/American Heart Association blood pressure (BP) guidelines remains inconsistent. We examined whether long-term diastolic burden predicts the first major adverse cardiovascular event in participants with sustained and untreated normal systolic BP. The Mass General Brigham Biobank is a New England health care-based cohort recruited between 2010 and 2021. A total of 15 979 participants aged 18 to 64 years and without prior cardiovascular disease, antihypertensives, or high systolic BP were studied. The cumulative diastolic burden was determined as the area under the curve for diastolic BP (DBP) ≥80 mm Hg over 5 years before enrollment. Major adverse cardiovascular event was defined as a composite of first incident ischemic heart disease, stroke, heart failure, or all-cause death. Of the 15 979 participants, mean (SD) age at enrollment was 47.6 (14.3) years, 11 950 (74.8%) were women, and the mean (SD) systolic BP and DBP were 118.0 (12.9) and 72.2 (9.3) mm Hg, respectively. Over a median (interquartile range) follow-up of 3.5 (1.8-5.4) years, 2467 (15.4%) major adverse cardiovascular events occurred. Using Cox proportional hazards regression, each SD increase in cumulative DBP was independently associated with a hazard ratio (95% CI) of 1.06 (1.02-1.10) without effect modification by sex (P=0.65), age (P=0.46), or race/ethnicity (P=0.24). In addition to traditional risk factors, cumulative DBP modestly improved the discrimination C index (95% CI) from 0.74 (0.72-0.75) to 0.75 (0.74-0.76; likelihood ratio test, P=0.037). Among individuals with normal systolic BP, cumulative DBP may augment cardiovascular disease risk stratification beyond a single DBP measure and traditional risk factors.

Burden of ischemic heart disease in the Middle East and North Africa (MENA) and attributable risk factors: An epidemiological analysis from 1990 to 2019

IntroductionDespite the burden of ischemic heart disease (IHD), there remains a paucity of research on the incidence, mortality, and burden of this condition in the Middle East and North Africa (MENA) regions. This study aimed to evaluate the epidemiology and the risk factors associated with IHD in the MENA region. MethodsThis study was performed based on the GBD study 2019 data. We retrieved the data related to the epidemiology and burden of IHD, including prevalence, incidence, years of life lost due to premature death (YLLs), years lived with disability (YLDs), and mortality at the global level and in MENA countries across years and sexes. ResultsIHD accounted for approximately 2.55 million (95 % UI 2.29–2.83) incident cases in MENA in 2019, with an age-standardized incidence rate of 613.87 (95 % UI 555.84–675.16) per 100 000 people, which has decreased by 9 % between 1990 and 2019. IHD accounted for 11.01 % of DALYs causes in MENA in 2019, an increase of 68 % compared to 1990. The DALYs rate from IHD increased with age in both men and women and was higher in men than in women in all age groups, except 85–89 years age-group, in 2019. ConclusionThe age-standardized prevalence and incidence of IHD are decreasing in MENA. However, this reduction is lower than the global level, which can be due to a weaker performance of the countries in the region in reducing the prevalence and incidence of the disease compared to the global average.

Pathways Linking Post-Traumatic Stress Disorder to Incident Ischemic Heart Disease in Women: Call to Action

BackgroundPost-traumatic stress disorder (PTSD) is associated with increased rates of incident ischemic heart disease (IHD) in women. ObjectivesThe purpose of this study was to determine mechanisms of the PTSD-IHD association in women. MethodsIn this retrospective longitudinal cohort study, data were obtained from electronic health records of all U.S. women veterans who were enrolled in Veterans Health Administration care from January 1, 2000 to December 31, 2017. Propensity score matching was used to match women with PTSD to women without PTSD on age, number of prior Veterans Health Administration visits, and presence of various traditional and nontraditional cardiovascular risk factors at index visit. Cox regression was used to model time until incident IHD diagnosis (ie, coronary artery disease, angina, or myocardial infarction) as a function of PTSD and potential mediating risk factors. Diagnoses of IHD, PTSD, and risk factors were defined by International Classification of Diseases-9th or -10th Revision, and/or Current Procedural Terminology codes. ResultsPTSD was associated with elevated rates of developing each risk factor. Traditional risk factors (hypertension, hyperlipidemia, smoking, diabetes) accounted for 24.2% of the PTSD-IHD association, psychiatric risk factors (eg, depression, anxiety, substance use disorders) accounted for 33.8% of the association, and all 13 risk factors accounted for 48.5% of the association. ConclusionsTraditional IHD risk factors explained a quarter of the PTSD-IHD association in women veterans, and over half of the risk of IHD associated with PTSD remained unexplained even when adjusting for a wide range of risk factors. To be actionable, factors underlying the remaining PTSD-IHD association warrant timely investigation.

Examining disparities in cardiovascular disease prevention strategies and incidence rates between urban and rural populations: insights from Kazakhstan

Kazakhstan is experiencing a high burden of cardiovascular disease (CVD), and the country has implemented a range of strategies aimed at controlling CVD. The study aims to conduct a content analysis of the policies implemented in the country and augment it with an analysis of official statistics over a 15-year period, from 2006 to 2020. The study also includes comparisons of incidence rates between urban and rural areas. A comprehensive search was conducted to identify policy documents that regulate the provision of primary, secondary, and tertiary prevention of cardiovascular diseases. Additionally, official data on the incidence of arterial hypertension, ischemic heart disease, acute myocardial infarction, and cerebrovascular disease were extracted from official statistics, disaggregated by urban and rural areas. Forecast modeling was utilized to project disease incidences up to 2030. The study reveals that Kazakhstan primarily focuses on tertiary prevention of cardiovascular diseases, with less attention given to secondary prevention, and primary prevention is virtually non-existent. In general, screening for arterial hypertension appears to be more successful than for ischemic heart disease. The incidence of arterial hypertension has increased threefold for urban residents and 1.7-fold for rural residents. In urban areas, residents saw a twofold increase in ischemic heart disease incidence, while it remained the same in rural areas. The findings of this study have practical implications for decision-makers, who can use the results to enhance the effectiveness of existing CVD prevention strategies.

Interactive effects of physical activity and sarcopenia on incident ischemic heart disease: Results from a nation-wide cohort study

Background and aimsLack of physical activity (PA) and sarcopenia is a known risk factors for ischemic heart disease (IHD). However, considering their coexistence in the middle-aged and elderly population, the interaction of these two factors remains uncertain. Here, we investigated the interactive effects of PA and sarcopenia on IHD. MethodsWe extracted 344,688 participants free of IHD at baseline from the UK Biobank. PA was classified into low, moderate, and high according to the International Physical Activity Questionnaire. Sarcopenia was identified in accordance with the European Working Group on Sarcopenia in Older People 2. Cox proportional hazard models were applied to estimate the effect of PA and sarcopenia on incident IHD and its subtypes. We also used objective PA data measured by wrist-worn devices to repeat these analyses. ResultsOver a median follow-up of 11.7 years, 24,809 (7.2%) participants developed incident IHD. Lack of PA was associated with a higher risk of IHD after adjusting for potential confounders. The hazard ratio (HR) was 1.09 (95% CI: 1.05–1.13) for individuals without sarcopenia and 1.29 (95% CI: 1.17–1.42) for those with sarcopenia. Regarding the joint effect, the combination of low PA and sarcopenia was associated with the highest risk of IHD, with an HR of 1.54 (95% CI: 1.44–1.66), and both additive and multiplicative interactions were significant (RERI 0.27, 95% CI: 0.14–0.39, p-interaction <0.01). For subtypes of IHD, the interaction was pronounced in acute myocardial infarction and chronic ischemic heart disease. ConclusionsThese results suggest a synergistic interaction between lack of PA and sarcopenia on the risk of IHD. Findings from this study may help facilitate more effective primary prevention of IHD.

Global burden of ischemic heart disease associated with high red and processed meat consumption: an analysis of 204 countries and territories between 1990 and 2019

BackgroundMultiple studies have indicated an association between red and processed meat consumption and the incidence of ischemic heart disease (IHD). In this study, we aimed to assess the burden of IHD caused by a diet high in red and processed meat in 204 countries and territories between 1990 and 2019, using data from the Global Burden of Disease (GBD) 2019.MethodsWe extracted data from the GBD 2019, which included the number of deaths, age-standardized mortality rates (ASMR), disability-adjusted life years (DALYs), and age-standardized DALYs rates (ASDR) attributed to IHD caused by a diet high in red and processed meat. We then calculated the burden of IHD attributable to a high intake of red and processed meat in each country and territory, stratified by age, sex, and socio-demographic index (SDI).ResultsGlobally, a high intake of red meat was responsible for 351,200 (95% uncertainty interval (UI): 559,000–642,700) deaths from IHD in 2019, while a high intake of processed meat was associated with 171,700 (95% UI: 30,100–320,000) deaths from IHD. Between 1990 and 2019, while the corresponding age-standardized rates declined, the numbers of deaths and DALYs increased. China had the highest number of deaths [98,386.9 (95% UI: 14,999.3–189,812.7)] caused by a high intake of red meat, while United States of America [33,129.6 (95% UI: 7,150–59,593.8)] was associated with the highest number of deaths caused by high intake of processed meat for IHD in 2019. Males experienced a greater burden of IHD caused by a high intake of red and processed meat than females. The ASMR and ASDR of IHD attributed to a high intake of red meat decreased in countries with high SDI, high-middle SDI and low SDI, while the ASMR and ASDR of IHD attributed to a high intake of processed meat decreased only in countries with high SDI and high-middle SDI.ConclusionAlthough there is a decline in the ASMR and ASDR of IHD caused by a high intake of red and processed meat, there is also an increase in deaths and DALYs number globally. Additionally, there is a heterogeneous burden of IHD related to a high intake of red and processed meat across regions and countries, with males experiencing a greater burden than females. Implementing targeted policies and interventions is required to reduce the burden of IHD caused by a high intake of red and processed meat.

Combined Exposure to Multiple Air Pollutants and Incident Ischemic Heart Disease in Individuals with and without Type 2 Diabetes: A Cohort Study from the UK Biobank

BackgroundAir pollution and type 2 diabetes (T2D) are both associated with an increased risk of ischemic heart disease (IHD). Little is known about the combined effects of multiple air pollutants on IHD risk, especially among individuals with T2D. We sought to assess the association of combined exposure to multiple air pollutants with incident IHD and examine the modification effect of T2D. MethodsThis study included 388780 individuals (20036 individuals with T2D) free of cardiovascular disease and cancer from the UK Biobank. The combined exposure to multiple air pollutants, including particulate matter (PM) with diameters ≤ 2.5 μm (PM2.5), PM with diameters between 2.5 and 10 µm (PMcoarse), PM with diameters≤10 μm (PM10), nitrogen dioxide (NO2), and nitrogen dioxides (NOx), was assessed by creating a weighted air pollution score (APS), with a higher APS representing a higher level of air pollution exposure. Hazard ratios (HR) and 95% confidence intervals (CI) for incident IHD were assessed by multivariable-adjusted Cox proportional hazard models. ResultsDuring a median of 12.9 years of follow-up, 27333 incident IHD cases were observed. Compared with the lowest tertile of the APS, the multivariable-adjusted HR (95% CI) of IHD risk for the highest tertile was 1.13 (1.03-1.23) among individuals with T2D, while the HR was 1.06 (1.03-1.10) among individuals without T2D. Additionally, the associations between APS and IHD incidence showed a linear relationship among individuals with T2D (nonlinearity: P = 0.37), whereas a non-linear relationship was observed among individuals without T2D (nonlinearity: P = 0.02). For the joint analysis, individuals in the highest tertile of APS and with T2D had a 54% higher risk of IHD compared to individuals in the lowest tertile of APS and without T2D, with a significant additive interaction (Pinteraction<0.01). The proportion of relative excess risk was 17% due to the interaction in categorical analyses. ConclusionsThe combined exposure to multiple air pollutants has been associated with an elevated risk of incident IHD, and the association is more pronounced among individuals with T2D.

Incidence of cardiovascular diseases over the past 20 years - a population-based study in 22 million individuals

Abstract Background The incidence of atherosclerotic diseases has declined considerably since the early 2000s but the extent to which these reductions have occurred in different subgroups of patients is unknown. Whether there have been similar changes in the incidence of other cardiovascular diseases is also uncertain. Methods We used linked primary and secondary electronic health records of 22 million individuals from the Clinical Practice Research Datalink (CPRD), a cohort that is representative of the UK population in terms of age and sex. We calculated the incidence of 10 cardiovascular diseases from 2000 to 2019 and used Poisson regression models to investigate temporal trends and variation by age, sex, and socioeconomic status. Findings: Among the 22 009 375 individuals included in the study, we identified a total of 2 015 280 patients with a new diagnosis of at least one cardiovascular disease between 2000 and 2019 (mean (SD) age: 68.7 (16.8) years, 49% women). Collectively, the incidence of all 10 cardiovascular disorders (standardised by age and sex) decreased by 8% over the study period (incidence rate ratio (IRR) comparing 2017-2019 vs 2000-2002: 0.92 [0.92, 0.93]). The incidence of ischaemic heart disease and stroke decreased by about 30% over the study period (IRR comparing 2017-2019 vs 2000-2002: 0.72 [0.72, 0.73] and 0.73 [0.72, 0.74] for ischaemic heart disease and stroke, respectively), yet these improvements were largely restricted to older age groups and no improvements were observed in the incidence of atherosclerotic disease before the age of 60 years. The reductions in atherosclerotic diseases were also paralleled by a rising number of diagnoses of cardiac arrhythmias, valve disease, and thromboembolic diseases, which increased considerably over the 20 years studied (Figure 1). Most cardiovascular disorders were more common in men than in women of the same age. However, the overall crude incidence of cardiovascular diseases was similar in men and women, due to the higher number of women in older age groups. A socioeconomic gradient was evident across all cardiovascular diseases, did not decrease over time, and was most important for peripheral arterial disease (IRR most deprived compared to least deprived: 1.56 [1.55, 1.58]), heart failure (1.50 [1.49, 1.51]) and ischaemic heart disease (1.48 [1.48, 1.49]) (Figure 2). Interpretation: Despite important improvements in the prevention of atherosclerotic diseases, the overall burden of cardiovascular diseases remains very high. Further improvements in cardiovascular disease prevention may need to consider the broader spectrum of cardiovascular diseases, such as arrhythmia, valve diseases, and thromboembolic diseases, and examine the specific needs of younger age groups and socioeconomically deprived populations.Figure 1Figure 2

Abstract 13720: Global Burden, Trends, and Attributable Risk Factors for Ischemic Heart Disease, 1990~2019: A Systemic Analysis of the Global Burden of Disease Study 2019

Background: As the primary culprit for nearly half of global cardiovascular deaths, ischemic heart disease (IHD) exerts a significant medical and economic toll, particularly on low- and middle-income countries. The rise in IHD incidence and mortality from 1990 to 2019 necessitates revising analyses and developing effective IHD strategies. Research Questions: To categorize IHD incidence, mortality, and Disability-Adjusted Life Years by country, sex, age, and Sociodemographic Index (SDI) from 1990-2019. To identify key risk factors and establish a model predicting IHD incidence till 2044.Aims: To assess global IHD incidence, dissect disease burden distribution, identify central risk factors, and forecast incidence trends. Methods: Leveraging the Global Burden of Disease (GBD) database for global population and IHD data from 1990 to 2019, we explored regional, gender, age attributes, and IHD temporal progression. We utilized a joinpoint model and an age-period-cohort model to decipher IHD incidence trends, scrutinized primary IHD risk factors, and predicted global IHD incidence till 2044. Results: Global age-standardized IHD incidence decreased from 316 (95% UI 282-352) in 1990 to 262 (95% UI 233-293) in 2019, primarily due to high SDI and high-middle SDI regions. Men had higher IHD incidence across all ages, notably between 35-74. Diet remained the leading risk factor from 1990 to 2019. Projections suggest a steady global IHD incidence similar to 2019 levels by 2044. Conclusions: Future trends indicate the IHD burden will concentrate in middle or lower SDI regions, with stable global IHD incidence over the next two decades. Joint initiatives to mitigate IHD's burden are vital, demanding specific policies and interventions. The GBD database is instrumental for health priority strategies. Collective efforts can lead us towards sustainable development and improved global health.

Abstract 12874: Risk of Ischemic Heart Disease in Young Women With Dysmenorrhea: A Cross-Sectional Study on Electronic Health Records

Introduction: Ischemic heart disease (IHD) incidence is increasing among young individuals, particularly women. Suboptimal primary prevention due to risk underestimation is thought to contribute to this trend. Non-traditional risk factors, such as stress and female-specific factors, are often overlooked but offer an opportunity to improve risk stratification. Dysmenorrhea is the most prevalent menstrual complaint, and associated with increased stress and autonomic dysfunction. To date, contribution of dysmenorrhea to cardiovascular disease risk has not been investigated. Hypothesis: Dysmenorrhea is associated with increased risk of IHD before 50 years of age. Methods: We extracted a cohort of 30,554 women with dysmenorrhea and 25,350 controls from Mount Sinai data warehouse as shown in Fig 1. For statistical analysis we performed full propensity score matching on demographic and clinical covariates, followed by weighted logistic regression with IHD before age 50 as a binary outcome. We then investigated IHD subtypes (angina, acute myocardial infarction (AMI), AMI complications, chronic IHD) in separate regression models, and evaluated the inclusion of menstrual abnormalities (MA) and endometriosis as additional covariates in the models (vs other covariates only). Results: Dysmenorrhea was associated with a significant increase in the OR for overall IHD, angina and chronic IHD (Table 1), independently from MA or endometriosis. Conclusions: Dysmenorrhea might be an important risk factor for early IHD. The risk appears to be largest for angina and chronic IHD. Further research can investigate dysmenorrhea as a predictor of future IHD risk.

Plasma Proteomics to Identify Drug Targets for Ischemic Heart Disease

BackgroundIntegrated analyses of plasma proteomic and genetic markers in prospective studies can clarify the causal relevance of proteins and discover novel targets for ischemic heart disease (IHD) and other diseases. ObjectivesThe purpose of this study was to examine associations of proteomics and genetics data with IHD in population studies to discover novel preventive treatments. MethodsWe conducted a nested case-cohort study in the China Kadoorie Biobank (CKB) involving 1,971 incident IHD cases and 2,001 subcohort participants who were genotyped and free of prior cardiovascular disease. We measured 1,463 proteins in the stored baseline samples using the OLINK EXPLORE panel. Cox regression yielded adjusted HRs for IHD associated with individual proteins after accounting for multiple testing. Moreover, cis-protein quantitative loci (pQTLs) identified for proteins in genome-wide association studies of CKB and of UK Biobank were used as instrumental variables in separate 2-sample Mendelian randomization (MR) studies involving global CARDIOGRAM+C4D consortium (210,842 IHD cases and 1,378,170 controls). ResultsOverall 361 proteins were significantly associated at false discovery rate <0.05 with risk of IHD (349 positively, 12 inversely) in CKB, including N-terminal prohormone of brain natriuretic peptide and proprotein convertase subtilisin/kexin type 9. Of these 361 proteins, 212 had cis-pQTLs in CKB, and MR analyses of 198 variants in CARDIOGRAM+C4D identified 13 proteins that showed potentially causal associations with IHD. Independent MR analyses of 307 cis-pQTLs identified in Europeans replicated associations for 4 proteins (FURIN, proteinase-activated receptor-1, Asialoglycoprotein receptor-1, and matrix metalloproteinase-3). Further downstream analyses showed that FURIN, which is highly expressed in endothelial cells, is a potential novel target and matrix metalloproteinase-3 a potential repurposing target for IHD. ConclusionsIntegrated analyses of proteomic and genetic data in Chinese and European adults provided causal support for FURIN and multiple other proteins as potential novel drug targets for treatment of IHD.

Lifetime cumulative effect of reproductive factors on ischaemic heart disease in a prospective cohort

ObjectiveThis study aimed to examine the association between lifetime oestrogen exposure and ischaemic heart disease (IHD), based on the hypothesis that higher lifetime oestrogen exposure is linked to lower cardiovascular...

Lipoprotein(a) and Long-Term Recurrent Infarction After an Acute Myocardial Infarction

Lipoprotein(a) (Lp[a]) is an emerging risk factor for incident ischemic heart disease. However, its role in risk stratification in in-hospital survivors to an index acute myocardial infarction (AMI) is scarcer, especially for predicting the risk of long-term recurrent AMI. We aimed to assess the relation between Lp(a) and very long-term recurrent AMI after an index episode of AMI. It is a retrospective analysis that included 1,223 consecutive patients with an AMI discharged from October 2000 to June 2003 in a single-teaching center. Lp(a) was assessed during index admission in all cases. The relation between Lp(a) at discharge and total recurrent AMI was evaluated through negative binomial regression. The mean age of the patients was 67.0 ± 12.3years, 379 (31.0%) were women, and 394 (32.2%) were diabetic. The index event was more frequently non-ST-segment elevation myocardial infarction (66.0%). The median Lp(a) was 28.8 (11.8 to 63.4)mg/100ml. During a median follow-up of 9.9 (4.6 to 15.5)years, 813 (66.6%) deaths and 1,205 AMI in 532 patients (43.5%) occurred. Lp(a) values were not associated with an increased risk of long-term all-cause mortality (p=0.934). However, they were positively and nonlinearly associated with an increased risk of total long-term reinfarction (p=0.016). In the subgroup analysis, there was no evidence of a differential effect for the most prevalent subgroups. In conclusion, after an AMI, elevated Lp(a) values assessed during hospitalization were associated with an increased risk of recurrent reinfarction in the very long term. Further prospective studies are warranted to evaluate their clinical implications.

Incident Cardiovascular Disease Risk among Older Asian, Native Hawaiian and Pacific Islander Breast Cancer Survivors.

Cardiotoxicity among breast cancer survivors is associated with chemotherapy and radiation therapy. The risk of cardiovascular disease (CVD) among Asian, Native Hawaiian and Pacific Islander (ANHPI) breast cancer survivors in the United States is unknown. We used the SEER-Medicare linked database to estimate the risk of CVD among older breast cancer survivors. International Classification of Disease diagnosis codes were used to identify incident CVD outcomes. Cox proportional hazards models were used to estimate HRs and 95% confidence intervals (CI) comparing ANHPI with Non-Hispanic White (NHW) patients with breast cancer for CVD, and among ANHPI race and ethnicity groups. A total of 7,122 ANHPI breast cancer survivors and 21,365 NHW breast cancer survivors were identified. The risks of incident heart failure and ischemic heart disease were lower among ANHPI compared with NHW breast cancer survivors (HRheart failure, 0.72; 95% CI, 0.61-0.84; HRheart disease, 0.74; 95% CI, 0.63-0.88). Compared with Japanese patients with breast cancer, Filipino, Asian Indian and Pakistani, and Native Hawaiian breast cancer survivors had higher risks of heart failure. ischemic heart disease and death. Among ANHPI breast cancer survivors, risk factors for heart failure included older age, higher comorbidity score, distant cancer stage and chemotherapy. Our results support heterogeneity in CVD outcomes among breast cancer survivors among ANHPI race and ethnicity groups. Further research is needed to elucidate the disparities experienced among ANHPI breast cancer survivors. Filipino, Asian Indian and Pakistani, and Native Hawaiian patients with breast cancer had higher risks of heart failure, ischemic heart disease and death among ANHPI patients with breast cancer.

Combined effect of serum carcinoembryonic antigen and hepatic steatosis on new-onset ischemic heart disease among middle-aged and older Korean adults: a cohort study.

Carcinoembryonic antigen (CEA) is a commonly used tumor marker in cancer screening. However, it has also been associated with metabolic alterations. Hepatic steatosis, the accumulation of fat in liver cells, is associated with various cardiovascular risk factors. This study investigated the risk of ischemic heart disease (IHD) in individuals with elevated CEA levels, hepatic steatosis, and their co-occurrence. The study cohort comprised 5,580 Korean adults who underwent health examinations between November 2006 and June 2010. Data regarding baseline CEA levels, hepatic steatosis status, and development of IHD were collected. Hepatic steatosis was defined as more than two findings: deep attenuation, vascular blurring, and increased liver echogenicity on abdominal ultrasound. Participants were divided into four groups based on their CEA and hepatic steatosis status: no hepatic steatosis and low CEA (group 1), no hepatic steatosis and elevated CEA (group 2), low CEA and hepatic steatosis (group 3), and elevated CEA and hepatic steatosis (group 4). A total of 226 (4.1%) participants developed IHD during the follow-up period. Participants with elevated CEA levels and hepatic steatosis (group 4) had the highest cumulative incidence of IHD in comparison to other groups (p < 0.001). The combined effect of elevated CEA levels and hepatic steatosis showed significantly greater area under the receiver operating characteristic curve than hepatic steatosis alone (p < 0.001). Furthermore, participants with elevated CEA and hepatic steatosis (group 4) had higher risk of developing IHD compared to those with low CEA and no hepatic steatosis (group 1) (hazard ratio: 1.63, 95% confidence interval: 1.04-2.55, p = 0.034). Co-occurrence of elevated CEA levels and hepatic steatosis increases the risk of IHD. Comprehensive risk assessment is crucial to guide interventions and improve cardiovascular health in individuals with both the conditions.

Changes in proteinuria and the associated risks of ischemic heart disease, acute myocardial infarction, and angina pectoris in Korean population.

Proteinuria is widely used to predict cardiovascular risk. However, there is insufficient evidence to predict how changes in proteinuria may affect the incidence of cardiovascular disease. The study included 265,236 Korean adults who underwent health checkups in 2003-2004 and 2007-2008. They were categorized into 4 groups based on changes in proteinuria (negative: negative → negative; resolved: proteinuria ≥1+ → negative; incident: negative → proteinuria ≥1+; persistent: proteinuria ≥1+ → proteinuria ≥1+). We conducted 6 years of follow-up to identify the risks of developing ischemic heart disease (IHD), acute myocardial infarction (AMI), and angina pectoris according to changes in proteinuria. A multivariate Cox proportional-hazards model was used to calculate adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for incident IHD, AMI, and angina pectoris. The IHD risk (expressed as HR [95% CI]) was the highest for persistent proteinuria, followed in descending order by incident and resolved proteinuria, compared with negative proteinuria (negative: reference, resolved: 1.211 [95% CI, 1.104 to 1.329], incident: 1.288 [95% CI, 1.184 to 1.400], and persistent: 1.578 [95% CI, 1.324 to 1.881]). The same pattern was associated with AMI (negative: reference, resolved: 1.401 [95% CI, 1.048 to 1.872], incident: 1.606 [95% CI, 1.268 to 2.035], and persistent: 2.069 [95% CI, 1.281 to 3.342]) and angina pectoris (negative: reference, resolved: 1.184 [95% CI, 1.065 to 1.316], incident: 1.275 [95% CI, 1.160 to 1.401], and persistent: 1.554 [95% CI, 1.272 to 1.899]). Experiencing proteinuria increased the risks of IHD, AMI, and angina pectoris even after proteinuria resolved.

Effect of CASC15 on apoptosis and oxidative stress of cardiomyocytes after hypoxia/reperfusion injury

Introduction and ObjectivesThe increasing incidence of ischemic heart disease is a serious threat to human health. Increased CASC15, a long non-coding RNA, has been shown to adversely affect cardiac muscle. The objective of this paper was to explore the effect of CASC15 on a cell model of myocardial infarction and its possible mechanism. MethodsH9c2 cells were selected to establish the myocardial infarction model through hypoxia/reoxygenation (H/R) treatment. The expression of CASC15 was attenuated by cell transfection in vitro. The level of CASC15 was detected by RT-qPCR. Cell viability was detected by CCK-8 assay, and cell apoptosis was assessed by flow cytometry. The content of MDA and the activity of SOD and GSH-Px were measured by ELISA. Luciferase reporter gene assay was used to determine the relationship between CASC15 and miRNA. ResultsCASC15 expression was increased in H/R-treated H9c2 cells. Overexpression of CASC15 adversely affected cell viability and promoted H/R-induced oxidative stress. Inhibition of CASC15 promoted cell viability and suppressed cell apoptosis and oxidative stress damage. Additionally, luciferase reporter gene assay confirmed the targeting relationship between CASC15 and miR-542-3p, and attenuating CASC15 expression enhanced the level of miR-542-3p. Reduction of miR-542-3p weakened the viability of the H/R cell model, increased apoptosis, and enhanced oxidative stress damage. ConclusionThis study suggests that overexpression of CASC15 may inhibit the viability of H9c2 cells, promote apoptosis and induce oxidative stress through targeted regulation of miR-542-3p expression.

Increasing Incidence of ST-Elevation Acute Coronary Syndrome in Young South Asian Population, a Challenge for the World? An Assessment of Clinical and Angiographic Patterns and Hospital Course of Premature Acute Myocardial Infarction

The incidence of premature ischemic heart disease (IHD) is increasing because of urbanization, a sedentary lifestyle, and various other unexplored factors, especially in South Asia. This study aimed to assess the distribution of premature ST-elevation acute coronary syndrome (STE-ACS) with its clinical and angiographic pattern along with hospital course in a contemporary cohort of patients who underwent primary percutaneous intervention at a tertiary care center in the South Asian region. We included consecutive patients of either gender diagnosed with STE-ACS and who underwent primary percutaneous intervention. Patients were stratified based on age as ≤40years (young) and >40years (old). Clinical characteristics, angiographic patterns, and hospital course were compared between the 2 groups. Of the total of 4,686 patients, 466 (9.9%) were young (≤40years). Young patients had a lower prevalence of hypertension (40.8% vs 54.5%, p<0.001), diabetes (26.6% vs 36.4%, p<0.001), metabolic syndrome (14.8% vs 24%, p<0.001), history of IHD (5.8% vs 9.3%, p=0.013) and a higher frequency of smoking (33% vs 24.7%, p<0.001), positive family history (8.2% vs 3.2%, p<0.001), and single-vessel involvement (60.1% vs 33.2%, p<0.001). The composite adverse clinical outcome occurrence was significantly lower in young patients (14.2% vs 19.5%, p=0.006). On multivariable analysis, history of IHD in young, whereas age, Killip class III/IV, intubated, arrhythmias on arrival, diabetes, history of IHD, pre-procedure left ventricular end-diastolic pressure, ejection fraction <40%, and slow flow/no-reflow during the procedure were found to be the independent predictors of adverse clinical outcome in old patients. In conclusion, we have a substantial burden of premature STE-ACS, mostly in male patients potentially driven by smoking and positive family history. Despite favorable pathophysiology, with mostly single-vessel hospital courses of STE-ACS in the young equally lethal in nature.