Episode Of Acute Myocardial Infarction Research Articles

EMMY trial: What we know and what we need to know

ABSTRACT SGLT-2 inhibitors are a class of antidiabetic drugs with additional cardiovascular benefits. Though initially developed for glycemic control, subsequent studies in the heart failure (HF) population also demonstrated positive outcomes. Currently, they are approved for use in HF with both reduced and preserved ejection fraction. More recently, encouraging data have emerged on acute HF. Following an episode of acute myocardial infarction, patients are also at high risk for developing HF and experiencing recurrent events despite optimal therapy. The PARADISE MI study failed to demonstrate any benefits of ARNI in this scenario. The EMMY trial explored the role of SGLT-2i in >450 odds patients with acute MI. At 26 weeks SGLT-2i (empagliflozin) use led to a higher fall in NT-pro-BNP levels compared to standard treatment. There was additional improvement in left ventricular echocardiographic parameters with empagliflozin too. However, it was a small trial, had a short follow-up and there were no clinical endpoints. But none the least, it attested to the safety of SGLT-2i in the post-MI scenario. Because the primary care physician frequently encounters patients in the post-MI scenario, the manuscript provides insights into their practice. Based on contemporary evidence, the universal use of SGLT-2 inhibitors in patients following acute MI is not warranted. A further role of these drugs in post-MI HF will be clarified in ongoing trials.

Risk of major adverse cardiovascular events in rural vs urban settings among patients with erectile dysfunction: a propensity-weighted retrospective cohort study of 430 621 men.

The relationship between erectile dysfunction (ED) and cardiovascular (CV) events has been postulated, with ED being characterized as a potential harbinger of CV disease. Location of residence is another important consideration, as the impact of rural residence has been associated with worse health outcomes. To investigate whether men from rural settings with ED are associated with a higher risk of major adverse CV events (MACEs). A propensity-weighted retrospective cohort study was conducted with provincial health administrative databases. ED was defined as having at least 2 ED prescriptions filled within 1 year. MACE was defined as the first hospitalization for an episode of acute myocardial infarction, heart failure, or stroke that resulted in a hospital visit >24hours. We classified study groups into ED urban, ED rural, no ED urban, and no ED rural. A multiple logistic regression model was used to determine the propensity score. Stabilized inverse propensity treatment weighting was then applied to the propensity score. A Cox proportional hazard model was used to examine our primary outcome of time to a MACE. The median time to a MACE was 2731, 2635, 2441, and 2508days for ED urban (n = 32 341), ED rural (n = 18 025), no ED rural (n = 146 358), and no ED urban (n = 233 897), respectively. The cohort with ED had a higher proportion of a MACE at 8.94% (n = 4503), as opposed to 4.58% (n = 17 416) for the group without ED. As compared with no ED urban, no ED rural was associated with higher risks of a MACE in stabilized time-varying comodels based on inverse probability treatment weighting (hazard ratio, 1.06-1.08). ED rural was associated with significantly higher risks of a MACE vs no ED rural, with the strength of the effect estimates increasing over time (hazard ratio, 1.10-1.74). Findings highlight the need for physicians treating patients with ED to address CV risk factors for primary and secondary prevention of CV diseases. This is the most extensive retrospective study demonstrating that ED is an independent risk factor for MACE. Due to limitations in data, we were unable to assess certain comorbidities, including obesity and smoking. Our study confirms that ED is an independent risk factor for MACE. Rural men had a higher risk of MACE, with an even higher risk among those who reside rurally and are diagnosed with ED.

Association of Acute Hyperglycemia and Diabetes Mellitus with Platelet-derived Microparticle (PDMP) Levels During Acute Myocardial Infarction.

This research investigates whether there is an association between acute hyperglycemia and diabetes mellitus and the level of circulating platelet-derived microparticles (PDMPs) during an initial episode of acute myocardial infarction (AMI). This was a cross-sectional study involving hospitalized AMI patients. Demographic and clinical data were obtained from hospital records. Diabetes mellitus was defined by the history of the disease, anti-diabetes medication use and/ or level of HbA1C ≥6.5%. Levels of HbA1c, admission random and fasting blood glucose levels were measured. Flow-cytometry method was used to determine the levels of PDMPs from collected venous blood through tagging with CD-41 FITC and CD-62 PE markers and a threshold size of <1 μm. The number of circulating PDMPs was compared according to glucometabolic state, namely acute hyperglycemia (admission random glucose ≥200 mg/dL and fasting glucose ≥140 mg/dL) and diabetes mellitus. The comparative analysis between groups was conducted with Student T-test or Mann-Whitney test, where applicable. A total of 108 subjects were included and their data analyzed. The level of circulating PDMPs was significantly lower in subjects with admission random glucose ≥200 mg/dL as compared to those with below level [median (interquartile range (IQR)]: 2,710.0 (718.0-8,167.0) count/mL vs. 4,452.0 (2,128.5-14,499.8) count/mL, p = 0.05) and in subjects with fasting glucose ≥140 mg/dL as compared to those with below level (median (IQR): 2,382.0 (779.0-6,619.0) count/mL vs. 5,972.0 (2,345.7-14,781.3) count/mL, p = 0.006). The level of circulating PDMPs was also significantly lower in patients with diabetes mellitus as compared to those without (median (IQR): 2,655.0 (840.0-5,821.0) count/mL vs. 4,562.0 (2,128.5-15,055.8) count/mL; p = 0.007). Acute hyperglycemia and diabetes mellitus are significantly associated with a lower circulating PDMP level during an initial AMI episode.

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.

Characteristics and outcomes of 795 patients with renal cell cancer following hospitalization for acute myocardial infarction.

e16516 Background: Renal cell cancer (RCC), as with many cancers, is associated with a hypercoagulable state as well as the potential risk of anemia that can lead to various cardio/cerebrovascular complications. Some of the treatments used in RCC like vascular endothelial growth factor (VEGF) inhibitors increase the thrombotic risk. Thus, the management of RCC patients following an episode of Acute Myocardial Infarction (AMI) can be more complex than that of the general population. We, therefore, conducted an in-depth analysis to study the characteristics and outcomes of AMI among RCC patients in the United States. Methods: We used the 2019 National Inpatient Sample (NIS), a yearly set of hospitalization records from the United States. Patients with a primary diagnosis of AMI and a diagnosis of RCC were identified. We excluded all patients below the age of 18 and those with other malignancies. Multiple patient characteristics were compared via Chi-Square tests. We also compared the odds of requiring Coronary artery bypass graft surgery (CABG) and Percutaneous coronary intervention (PCI) among the two groups. The overall mortality rate and adjusted odds ratios were estimated. Results: Our study found 633410 cases of AMI among adults in the United States in 2019. Among them, 795 (0.1%) had a diagnosis of RCC. A higher number of RCC patients were Male (75.5% vs. 62.7%, p &lt; 0.01), racially classified as White (77.1% vs. 73.0%, p &lt; 0.01), aged 60 or more (88.7% vs. 69.8%, p &lt; 0.01), covered by Medicare (72.3% vs. 56.1%, p &lt; 0.01), had hypertension (66.7% vs. 82.7%, p &lt; 0.01), were diabetics (45.9% vs. 41.4%, p &lt; 0.01) or had anemia (42.1% vs. 22.1%, p &lt; 0.01). A lower percentage of RCC patients underwent various procedures following their AMI, as only 6.3% underwent CABG (vs. 7.5% in the non-RCC group), and 27.6% (vs. 45.8% in the non-RCC group) underwent PCI. Patients with RCC were also older (71.62 years vs. 66.64 years, p &lt; 0.01), had a longer hospitalization (5.51 days vs.4.34 days, p &lt; 0.01), which was also associated with a more expensive mean hospital charge ($114572.98 vs. $106241.24). Unfortunately, we also found that the presence of RCC among AMI patients was also linked with a higher odds ratio of mortality (7.5% vs. 4.4%, aOR 1.643, 95% CI 1.249- 2.160, p &lt; 0.01). Conclusions: Our study confirms various differences in patient characteristics among AMI cases with and without RCC. While fewer RCC patients underwent procedures such as CABG or PCI, they experienced a less favorable outcome, including a longer and more costly stay and higher odds of in-hospital death. It is thus vital to screen RCC patients for potential risk factors for AMI, promote primary and secondary prevention measures, and improve hospitalization protocols to identify potential complications.

“Recognition of heart attack symptoms and treatment-seeking behaviors: a multi-center survey in Tehran, Iran”

BackgroundIn acute myocardial infarction (AMI), timely recognition of symptoms and early hospital presentation positively affect patient morbidity and mortality. Due to the high burden of ischemic heart disease in Iran, this study aimed to identify factors affecting the level of knowledge, responses at the time of AMI onset, and sources of health information among the Iranian population.MethodThis cross-sectional study was conducted in three tertiary hospitals in Tehran, Iran. An expert-validated questionnaire was used to obtain data. A total of 400 individuals were enrolled.ResultAmong the respondents, 285 people(71.3%) considered “chest pain or discomfort,” and 251 (62.7%) regarded “pain or discomfort in the arm or shoulder” as MI symptoms. Approximately 288 (72.0%) respondents had poor knowledge of the AMI symptoms. Knowledge of symptoms was higher among those with higher levels of education, those with medical-associated jobs, and those who resided in the capital areas. Major risk factors identified by the participants were: anxiety (340)(85.0%), obesity (327)(81.8%), an unhealthy diet (325)(81.3%), and the presence of high LDL levels (258)(64.5%) and Diabetes Mellitus (164)(41.0%) were less appreciated. Calling an ambulance (286)(71.5%) was the most common treatment-seeking behavior in the case of a suspected heart attack.ConclusionIt is vital to educate the general population about AMI symptoms, particularly those with comorbidities at the greatest risk for an AMI episode.

Sex Difference in Outcomes of Acute Myocardial Infarction in Young Patients

BackgroundYounger women experience worse health status than men after their index episode of acute myocardial infarction (AMI). However, whether women have a higher risk for cardiovascular and noncardiovascular hospitalizations in the year after discharge is unknown. ObjectivesThe aim of this study was to determine sex differences in causes and timing of 1-year outcomes after AMI in people aged 18 to 55 years. MethodsData from the VIRGO (Variation in Recovery: Role of Gender on Outcomes of Young AMI Patients) study, which enrolled young patients with AMI across 103 U.S. hospitals, were used. Sex differences in all-cause and cause-specific hospitalizations were compared by calculating incidence rates ([IRs] per 1,000 person-years) and IR ratios with 95% CIs. We then performed sequential modeling to evaluate the sex difference by calculating subdistribution HRs (SHRs) accounting for deaths. ResultsAmong 2,979 patients, at least 1 hospitalization occurred among 905 patients (30.4%) in the year after discharge. The leading causes of hospitalization were coronary related (IR: 171.8 [95% CI: 153.6-192.2] among women vs 117.8 [95% CI: 97.3-142.6] among men), followed by noncardiac hospitalization (IR: 145.8 [95% CI: 129.2-164.5] among women vs 69.6 [95% CI: 54.5-88.9] among men). Furthermore, a sex difference was present for coronary-related hospitalizations (SHR: 1.33; 95% CI: 1.04-1.70; P = 0.02) and noncardiac hospitalizations (SHR: 1.51; 95% CI: 1.13-2.07; P = 0.01). ConclusionsYoung women with AMI experience more adverse outcomes than men in the year after discharge. Coronary-related hospitalizations were most common, but noncardiac hospitalizations showed the most significant sex disparity.

Self-reported insomnia symptoms, sleep duration, chronotype and the risk of acute myocardial infarction (AMI): a prospective study in the UK Biobank and the HUNT Study

Insomnia and short/long sleep duration increase the risk of AMI, but their interaction with each other or with chronotype is not well known. We investigated the prospective joint associations of any two of these sleep traits on risk of AMI. We included 302 456 and 31 091 participants without past AMI episodes from UK Biobank (UKBB; 2006–10) and the Trøndelag Health Study (HUNT2; 1995–97), respectively. A total of 6 833 and 2 540 incident AMIs were identified during an average 11.7 and 21.0 years follow-up, in UKBB and HUNT2, respectively. Compared to those who reported normal sleep duration (7–8 h) without insomnia symptoms, the Cox proportional hazard ratios (HRs) for incident AMI in UKBB among participants who reported normal, short and long sleep duration with insomnia symptoms were 1.07 (95% CI 0.99, 1.15), 1.16 (95% CI 1.07, 1.25) and 1.40 (95% CI 1.21, 1.63), respectively. The corresponding HRs in HUNT2 were 1.09 (95% CI 0.95, 1.25), 1.17 (95% CI 0.87, 1.58) and 1.02 (95% CI 0.85, 1.23). The HRs for incident AMI in UKBB among evening chronotypes were 1.19 (95% CI 1.10, 1.29) for those who had insomnia symptoms, 1.18 (95% CI 1.08, 1.29) for those with short sleep duration, and 1.21 (95% CI 1.07, 1.37) for those with long sleep duration, compared to morning chronotypes without another sleep symptom. The relative excess risk for incident AMI in UKBB due to interaction between insomnia symptoms and long sleep duration was 0.25 (95% CI 0.01, 0.48). Insomnia symptoms with long sleep duration may contribute more than just an additive effect of these sleep traits on the risk of AMI.

Risk of Acute Myocardial Infarction in Pneumoconiosis: Results from a Retrospective Cohort Study

Pneumoconiosis (PCN) has several comorbidities, most notably pulmonary and cardiovascular diseases. However, much is still unknown about the relationship between PCN and acute myocardial infarction (AMI). The present study aimed to clarify the association between PCN and subsequent AMI risk using a retrospective cohort study design. This was a population-based, retrospective cohort study that used data from Taiwan's National Health Insurance Database. A total of 7556 newly diagnosed patients with PCN and 7556 individuals without PCN were included in the PCN and comparison cohort (PC and CC), respectively, between 2008 and 2018, with propensity score matching for age, gender, comorbidity, medication, and date of PCN diagnosis. The occurrence of AMI was monitored until the end of 2019, and AMI risk was assessed using Cox proportional hazard regression models. The overall incidence of AMI was 1.34-fold higher in the PC than in the CC (4.33 vs. 3.23 per 1000 person-years, respectively, p < 0.05), with an adjusted hazard ratio (aHR) of 1.36 (95% confidence interval (CI): 1.08-1.72) after controlling for age, gender, comorbidity, and medication. Further analyses showed a higher risk of AMI with increased annual number of emergency department visits among patients with PCN (aHR: 1.30, 95% CI: 1.01-1.66 (<1) and aHR: 1.68, 95% CI: 1.13-2.50 (≥1)). Patients with PCN had a significantly higher risk of developing AMI than those without PCN. Clinicians should pay more attention to prevent AMI episodes in patients with PCN.

Analysis of risk factors for severe acute kidney injury in patients with acute myocardial infarction: A retrospective study.

Patients with acute myocardial infarction (AMI) complicated by acute kidney injury (AKI) tend to have a poor prognosis. However, the exact mechanism of the co-occurrence of the two diseases is unknown. Therefore, this study aims to determine the risk factors for severe AKI in patients with AMI. A total of 2022 patients were included in the Medical Information Mart for Intensive Care. Variables were identified via univariate logistic regression, and the variables were corrected via multivariate logistic regression. Restricted cubic splines were used to examine the risks associated with the variables. The Kaplan-Meier method was used to compare the risk of severe AKI among the patients. Patients with severe AKI had a higher in-hospital mortality rate (28.6% vs. 9.0%, P < 0.001) and a longer duration of intensive care (6.5 days vs. 2.9 days, P < 0.001). In patients with AMI, the mean systolic blood pressure (SBP); international normalized ratio (INR); the levels of blood urea nitrogen (BUN), glucose, and calcium; and a history of liver disease were found to be the independent risk factors for developing severe AKI after their admission. Increased levels of BUN and blood glucose and a high INR increased the risk of severe AKI; however, increased levels of calcium decreased the risk; SBP presented a U-shaped curve relationship. Patients with severe AKI have a poor prognosis following an episode of AMI. Furthermore, in patients with AMI, SBP; INR; a history of liver disease; and the levels of BUN, glucose, and calcium are the independent risk factors for developing severe AKI after their admission.

Precise Metabolomics Defines Systemic Metabolic Dysregulation Distinct to Acute Myocardial Infarction Associated With Diabetes.

Acute myocardial infarction (AMI) is a leading cause of death and disability. Diabetes is an important risk factor and a common comorbidity in AMI patients. The higher mortality risk of diabetes-AMI relative to nondiabetes-AMI indicates a need for specific treatment to improve clinical outcome. However, the global metabolic dysregulation of AMI complicated with diabetes is still unclear. We aim to systematically interrogate changes in the metabolic microenvironment immediate to AMI episodes in the absence or presence of diabetes. In this work, quantitative metabolomics was used to investigate plasma metabolic differences between diabetes-AMI (n=59) and nondiabetes-AMI (n=59) patients. A diverse array of perturbed metabolic pathways involving carbohydrate metabolism, lipid metabolism, glycolysis, tricarboxylic acid cycle, and amino acid metabolism emerged. In all, our omics-oriented approach defined a metabolic signature of afflicted mitochondrial function aggravated by concurrent diabetes in AMI patients. In particular, our analyses uncovered N-lactoyl-phenylalanine and lysophosphatidylcholines as key functional metabolites that skewed the metabolic picture of diabetes-AMI relative to nondiabetes-AMI. N-lactoyl-phenylalanine was strongly associated with metabolic indicators reflective of mitochondrial overload and negatively correlated with HbA1c (glycosylated hemoglobin, type A1C) specifically in hyperglycemic AMI, suggestive of its central role in glucose utilization and mitochondrial energy production instrumental to the clinical outcome of diabetes-AMI. Reductions in lysophosphatidylcholines, which were negatively correlated with blood glucose and inflammatory markers, might further compromise glucose expenditure and aggravate inflammation leading to poorer prognosis in diabetes-AMI. As circulating metabolite levels are amenable to therapeutic intervention, such shifts in metabolic signatures provide new clues and potential therapeutic targets specific to the treatment of diabetes-AMI.

Characteristics and outcomes of percutaneous coronary interventions in patients with spontaneous coronary artery dissection. A study from the administrative minimum data set of the Spanish National Health System.

Coronary revascularization in patients with spontaneous coronary artery dissection (SCAD) is challenging. Indications and results of percutaneous coronary interventions (PCI) in SCAD patients are not well established. To assess indications and results of PCI in SCAD. The minimum basic data set of the Spanish National Health System (years 2016-2019) was used to identify 804 episodes of acute myocardial infarction (AMI) and SCAD, with a crude in-hospital mortality rate of 3%. Of these, 368 (46.8%) patients were revascularized with PCI during admission whereas 436 (54.2%) were managed conservatively. Revascularization and in-hospital mortality rates both declined over the study period (p for trend both < 0.05). SCAD patients treated with PCI were older, more frequently male, and had higher frequency of diabetes, ST-segment elevation AMI and cardiogenic shock, compared to patients managed conservatively. The crude in-hospital mortality rate was higher in patients treated with PCI (4.9% vs. 1.4%; p = 0.004). However, after adjusting by propensity score (223 pairs) the in-hospital mortality rate was similar in the two groups (Adj OR: 1.21; 95%CI: 0.30-1.57; p = 0.76). Readmissions at 30-days were higher in patients managed conservatively (7.1 vs. 1.6%, p < 0.001) and this difference was maintained after propensity score adjustment (Adj average treatment effect: 2% vs. 12.2%; OR: 0.15; 95%CI: 0.04-0.45; p < 0.001). Revascularization is frequently used in unselected patients with AMI and SCAD but its use is declining. Patients with SCAD treated with PCI have a higher in-hospital mortality but this appears to be explained by their adverse baseline clinical characteristics.

“Nobody wants to rock the boat”: a grounded theory study of taking medication to prevent a further heart attack

Abstract Introduction Following an acute myocardial infarction (AMI), patients are prescribed a daily regime of five medications to prevent secondary cardiovascular events, however medication adherence in this patient group has been measured at only 66%.1 Sub-optimal adherence leads to increased mortality, morbidity and healthcare system costs. Current interventions such as monitored dosage systems, phone message reminders and pharmacist consultations have made some improvements but are largely based on presumptions about adherence than formal evidence. Studying the experience of medication-taking following an AMI, and the personal requirement and adjustment that is required to enable adherence could arguably generate the evidence needed to support future interventions in this field. Aim The aim of this study was to use grounded theory methodology to create a model explaining the process of medication-taking in patients prescribed medication following an AMI. Methods Following ethical approval (UREC 18/36), semi-structured interviews were conducted with thirteen people (based in South-East England) taking medication following at least one AMI episode in the past. The interviews were conducted in person, online or via the telephone and audio-recorded. These recordings were transcribed verbatim and analysed according to constructed grounded theory.2 NVivo software was used to organise and display the coded data and produce a model of the medication-taking process. Results Patients took medication because they wanted to continue living their lives. They saw medication as offering them protection, alongside diet and exercise. Following hospital discharge, patients incorporated medication into their daily routines at home. They used mealtimes and bedtime as a prompt, and kept medication located close to these activities. Patients described rarely missing doses but recognised being away from routines was a cause of medication omission. In this stable stage, patients considered medication-taking unproblematic; they ‘just got on with it’. The professional trust established with the medical team was the basis for following medication directions, and patients conferred the authority to make decisions about their treatment, not wanting to initiate changes themselves; to not ‘rock the boat’. The main cause of change to medication-taking was experiencing adverse bodily effects, ascribed by patients to medication and described as side effects. Patients used small noticeable bodily changes as a prompt for further investigation and information- seeking, after which they presented evidence to the medical team, who instigated medication changes. There was a background dislike of taking medication, which was eased by knowledge of medication action and personal biomedical results. These patients were intentionally adherent to medication but were drawn to question their treatment when ‘side effects’ or misunderstanding arose. Discussion/Conclusion Medication-taking in this group is driven by a desire to live, so they accommodate medication routine to fit their lives, but ‘side effects’ can disturb their intention to continue the routine. This action is reinforced by trust relationships with medical professionals. Resistance to taking medication is alleviated by knowledge of medication action and biomedical results. Practitioners can use patient education, test results and shared decision-making as points to further the patient relationship and strengthen adherence behaviours.

EFFICACY OF ACCELERATED STREPTOKINASE INFUSION IN THE TREATMENT OF ST ELEVATION MYOCARDIAL INFARCTION

Objectives: Cardiovascular disease (CVD) is considered as one of the important priorities in the health systems of all countries. Approximately 550,000 first episodes and 200,000 recurrent episodes of acute myocardial infarction occur annually worldwide. Globally, ischemic heart disease has become the leading contributor to the burden of disease as assessed on the basis of disability-adjusted life-years. To determine the efficacy of accelerated streptokinase in patients with acute ST elevation myocardial infarction.&#x0D; Methodology: This Descriptive study was done in the Department of Cardiology, Hayatabad Medical Complex Peshawar from August 2020 to February 2021. Total 144 patients were observed. All patients were subjected to SK in a dose of 1.5million units over 60 minutes. All patients were under strict observation and a repeat ECG was performed to determine the efficacy of accelerated SK.&#x0D; Results: Our study shows that among 144 patients mean age and standard deviation was 61± 8.19. 88(61%) patients were male and 56(39%) patients were female. More over accelerated streptokinase was effective in 92(64%) patients and was not effective in 52(36%) patients.&#x0D; Conclusion: The accelerated SK infusion regimen of 1.5 MU in 20 min is safe and well tolerated with significantly faster and higher clinical reperfusion rates, more preserved LV systolic function, less atrial and ventricular sustained arrhythmias, and less in-hospital and 1 year mortality rates in acute STEMI.

Importance of cardiac imaging assessment of epicardial adipose tissue after a first episode of myocardial infarction.

Over the past years, information about the crosstalk between the epicardial adipose tissue (EAT) and the cardiovascular system has emerged. Notably, in the context of acute myocardial infarction (AMI), EAT might have a potential role in the pathophysiology of ventricular structural changes and function, and the clinical evolution of patients. This study aims to assess the impact of EAT on morpho-functional changes in the left ventricle (LV) and the outcome of patients after an AMI. We studied prospectively admitted patients to our hospital with a first episode of AMI. All patients underwent percutaneous coronary intervention (PCI) during admission. Transthoracic echocardiography (TTE) was performed within 24-48 h after PCI, as well as blood samples to assess levels of galectin-3 (Gal-3). Cardiac magnetic resonance (CMR) was performed 5-7 days after PCI. Clinical follow-up was performed at 1 and 5 years after MI. Mean age of our cohort (n = 41) was 57.5 ± 10 years, and 38 (93%) were male. Nine patients had normal BMI, 15 had overweight (BMI 25-30), and 17 were obese (BMI > 30). Twenty three patients (56%) had ≥ 4 mm thickness of EAT measured with echo. In these patients, baseline left ventricular ejection fraction (LVEF) after AMI was significantly lower, as well as global longitudinal strain. EAT thickness ≥ 4 m patients presented larger infarct size, higher extracellular volume, and higher T1 times than patients with EAT < 4 mm. As for Gal-3, the median was 16.5 ng/mL [12.7-25.2]. At five-year follow-up 5 patients had major cardiac events, and all of them had EAT ≥ 4 mm. Patients with EAT >4 mm have worse LVEF and GLS, larger infarct size and longer T1 values after a MI, and higher levels of Gal-3. EAT >4 mm was an independent predictor of MACE at 5-year follow-up. EAT thickness is a feasible, noninvasive, low-cost parameter that might provide important information regarding the chronic inflammatory process in the myocardium after an infarction.

Abstract 9886: Outcome of Pancreatic Cancer Patients Following Hospitalization for Acute Myocardial Infarction: Perspective From the National Inpatient Sample

Introduction: Pancreatic cancer (PC) has induced a higher risk of a hypercoagulable state that can further lead to various complications such as Acute Myocardial Infarction (AMI). There is a lack of data on the outcomes of PC patients following an episode of AMI. Method: A retrospective analysis was performed via the 2019 National Inpatient Sample (NIS). We identified a principal diagnosis of AMI and a diagnosis of PC (ICD-10 'C25.x') at any level. Patient characteristics (sex, race, diabetes, mean age, hypertension, hyperlipidemia, and smoking history) were compared, and the risk of mortality in PC patients was estimated via multivariable regression analysis. Results: In total, 555 (0.1%) PC cases were found among all hospitalized cases of AMI in the United States in 2019. We also found that 63.1% were males, 46.8% had diabetes, 85.6% had hypertension, 58.6% had hyperlipidemia, 45.9% reported a smoking history, and 73.0% were Whites. Among the PC patients, 120 (22.4%) patients underwent PCI. Unfortunately, 65 (11.7%) patients with PC died (aOR 2.595, 95% CI 1.995-3.375, p&lt;0.01). Among PC patients with AMI, a lower mortality risk was seen among smokers (aOR: 0.221, 95% CI 0.110-0.444, p&lt;0.01), diabetics (aOR: 0.369, 95% CI 0.193-0.707, p&lt;0.01), and those with hypertension (aOR: 0.114, 95% CI: 0.054-0.239, p&lt;0.01). The mean age of all PC patients was 72.77 years (SEM: 0.421), while non-PC patients were younger (66.92 years, SEM:0.016). PC patients that died were also older, with a mean age of 75.38 (SEM:1.542), compared to non-PC patients that died following AMI (mean age 73.41, SEM 0.071). Conclusion: Our analysis found that pancreatic cancer raised the risk of mortality among AMI cases. While most cases of pancreatic cancer tend to have an overall poor prognosis, physicians are encouraged to investigate further other risk factors that can complicate their hospitalizations.

Abstract 10057: Cerebral Palsy Patients Admitted for Acute Myocardial Infarction; Insights From the 2019 National Inpatient Sample

Introduction: Past studies have suggested that respiratory diseases are the most common cause of death among children with cerebral palsy (CP). At the same time, cardiovascular complications and cancer could be the leading killer among adult in those patients. The outcomes of cerebral palsy patients and risk factors following an episode of Acute Myocardial Infarction (AMI) have not been widely examined. Methods: A retrospective study via the 2019 National Inpatient Sample was conducted. Cases with CP diagnosis were retrieved via their appropriate ICD-10 codes (G80.0x). We also filtered to include patients with a principal diagnosis of AMI. Various categorical variables were compared via Chi-Square tests. Results: In 2019, 295 patients with cerebral palsy were admitted with AMI. CP patients were younger (mean age 63.20 vs. 66.93 years) and more common among Whites (86.0%), covered by Medicare (79.7%), and of ages &gt;60 (66.1%). Compared to non-CP patients, CP patients also recorded more cases with depression (20.3% vs. 9.3%) and drug abuse (8.5% vs. 3.0%). However, they had less cases with smoking (28.8% vs. 49.3), obesity (13.6% vs. 21.0%), hyperlipidemia (59.3% vs. 68.6%), old myocardial infarct (8.5% vs. 16.6%), hypertension (78.0% vs. 82.8%), diabetes (35.6% vs. 41.2%), peripheral vascular disease (6.8% vs. 10.6%), acute kidney injury (10.2 % vs. 20.8%), ventricular tachycardia (6.8% vs. 7.2%), and paroxysmal atrial fibrillation (6.8% vs. 9.9%). Only 38.6% of CP patients underwent PCI. Conclusions: CP patients may present with AMI at a younger age and express a higher depression and drug abuse rate. Physicians and providers linked with their care should be encouraged to reach out to them for signs of depression and provide them with adequate facilities to seek treatment.

A Comparative Study of Biochemical Markers in the Early Diagnosis of Acute Myocardial Infarction (AMI)

Background: One of the most effective instances of readily detected biomarkers diagnosing a very big health concern is the measuring of proteins in blood to represent heart damage. The idea of utilizing a blood test to reflect organ or cell harm necessitates a chemical that is plentiful in the target cell, can reach blood, has a suitable half-life in blood, and is preferably in a particular form that only reflects the target cell in tissue. Because contraction is the primary function of the myocyte, proteins involved in contraction or the energy required to sustain it should be suitable potential indicators. The work on diagnostic tests for myofibrillar proteins begins in 1978. Different key pieces of evidence fueled in the research. In Ist-year outcomes were identical in chest pain patients whose acute myocardial infarction (AMI) was ruled out by electrocardiography and cardiac enzymes, demonstrating that the existing diagnostic tools were not beneficial for risk prediction and treatment recommendations. Second, CK and lactate dehydrogenase isoenzymes were brought into clinical practice and demonstrated to have higher specificity and sensitivity than traditional tests. All of the biomarkers used to diagnose cardiac injury are involved in contraction or energy metabolism, but the markers evolved via trial and error, beginning with transaminases in the 1950s and ending with troponins in the 1990s. This background is discussed, along with observations on my experiences establishing CK-MB and Troponin I assays. Methods: 140 individuals with AMI are included who are diagnosed using WHO criteria. A cross-sectional study with purposive sampling technique is conducted in wazirabad institute of Cardiology. This research is last around 6 months. Before the examinations, blood samples are obtained from patients by vein puncture using syringes and preserved in clot tubes. The research includes patients experiencing chest pressure, tightness, or discomfort, shortness of breath, and irregular cardiac rhythms on ECG. Patients having a normal ECG are not included in the study. Different equipments are utilized to assess appropriate heart function and to obtain serum for the identification of various cardiac biomarkers. Result: The sensitivities of all biochemical markers change depending on the time of infarction, as previously demonstrated and expected from a patho-physiologic standpoint, the blood sample of all the patients was collected and used for further investigation in the Lab. In the current study, 140 patients are enrolled, and all of the patients who had a single episode of AMI had their ECGs taken. All of the patients' ECGs are abnormal. In compared to other Bio-Cardiac Markers, the Troponin –I has a higher ratio of patients, according to the present findings. When a person undergoes AMI, the first protein that is released is troponin-I. When these tests are conducted over a period of time, they provide us with a quick assessment of the severity of AMI. As a result of the current findings, patients have a higher level of Trop-I in their blood when they experience their first episode of AMI. In this situation, the patient should go to the nearest health care center's emergency room as quickly as feasible. Conclusion: The traditional enzymatic assays of creatine kinase (CK), CK-MB (activity), and lactate dehydrogenase are rapidly being replaced by mass measurements of myoglobin, CKMB, and troponin T and troponin I (Tnl) 1 " to achieve high diagnostic sensitivity and specificity within a few hours from the onset of tissue necrosis; the ultimate goal is the early and appropriate management of patients' conditions. We compared the diagnostic sensitivity and specificity obtained by measuring various biochemical markers, some of which are widely used, and concluded that Troponin I is the first cardiac marker that releases simultaneously after the first episode of AMI when performed as single tests and in parallel and serial modes.

Mitochondrial Oxidative Stress Promotes Cardiac Remodeling in Myocardial Infarction through the Activation of Endoplasmic Reticulum Stress

We have evaluated cardiac function and fibrosis in infarcted male Wistar rats treated with MitoQ (50 mg/kg/day) or vehicle for 4 weeks. A cohort of patients admitted with a first episode of acute MI were also analyzed with cardiac magnetic resonance and T1 mapping during admission and at a 12-month follow-up. Infarcted animals presented cardiac hypertrophy and a reduction in the left ventricular ejection fraction (LVEF) and E- and A-waves (E/A) ratio when compared to controls. Myocardial infarction (MI) rats also showed cardiac fibrosis and endoplasmic reticulum (ER) stress activation. Binding immunoglobulin protein (BiP) levels, a marker of ER stress, were correlated with collagen I levels. MitoQ reduced oxidative stress and prevented all these changes without affecting the infarct size. The LVEF and E/A ratio in patients with MI were 57.6 ± 7.9% and 0.96 ± 0.34, respectively. No major changes in cardiac function, extracellular volume fraction (ECV), or LV mass were observed at follow-up. Interestingly, the myeloperoxidase (MPO) levels were associated with the ECV in basal conditions. BiP staining and collagen content were also higher in cardiac samples from autopsies of patients who had suffered an MI than in those who had died from other causes. These results show the interactions between mitochondrial oxidative stress and ER stress, which can result in the development of diffuse fibrosis in the context of MI.

Spontaneous coronary artery dissection in Spain: a study using the minimum data set of the Spanish National Health System

Introduction and objectivesSpontaneous coronary artery dissection (SCAD) is a rare cause of acute myocardial infarction (AMI). We sought to compare the results on in-hospital mortality and 30-day readmission rates among patients with AMI-SCAD vs AMI due to other causes (AMI-non-SCAD). MethodsRisk-standardized in-hospital mortality (rIMR) and risk-standardized 30-day readmission ratios (rRAR) were calculated using the minimum dataset of the Spanish National Health System (2016-2019). ResultsA total of 806 episodes of AMI-SCAD were compared with 119 425 episodes of AMI–non-SCAD. Patients with AMI-SCAD were younger and more frequently female than those with AMI–non-SCAD. Crude in-hospital mortality was lower (3% vs 7.6%; P<.001) and rIMR higher (7.6±1.7% vs 7.4±1.7%; P=.019) in AMI-SCAD. However, after propensity score adjustment (806 pairs), the mortality rate was similar in the 2 groups (AdjOR, 1.15; 95%CI, 0.61-2,2; P=.653). Crude 30-day readmission rates were also similar in the 2 groups (4.6% vs 5%, P=.67) whereas rRAR were lower (4.7±1% vs 4.8%±1%; P=.015) in patients with AMI-SCAD. Again, after propensity score adjustment (715 pairs) readmission rates were similar in the 2 groups (AdjOR, 1.14; 95%CI, 0.67–1.98; P=.603). ConclusionsIn-hospital mortality and readmission rates are similar in patients with AMI-SCAD and AMI–non-SCAD when adjusted for the differences in baseline characteristics. These findings underscore the need to optimize the management, treatment, and clinical follow-up of patients with SCAD.