Recurrent Acute Myocardial Infarction Research Articles

Predictors of recurrent acute myocardial infarction despite successful percutaneous coronary intervention.

Background/AimsRecurrent acute myocardial infarction (AMI) is an adverse cardiac event in patients with a first AMI. The predictors of recurrent AMI after the first AMI in patients who underwent successful percutaneous coronary intervention (PCI) have not been elucidated.MethodsWe analyzed the data collected from 9,869 patients (63.2 ± 12.4 years, men:women = 7,446:2,423) who were enrolled in the Korea Acute Myocardial Infarction Registry-National Institute of Health between November 2011 and October 2015, had suffered their first AMI and had received successful PCI during the index hospitalization. Multivariable logistic regression analysis was performed to identify the independent predictors of recurrent AMI following the first AMI.ResultsThe cumulative incidence of recurrent AMI after successful PCI was 3.6% (359/9,869). According to the multivariable logistic regression analysis, the significant predictive factors for recurrent AMI were diabetes mellitus, renal dysfunction, atypical chest pain, and multivessel disease.ConclusionsIn this Korean prospective cohort study, the independent predictors of recurrent AMI after successful PCI for the first AMI were diabetes mellitus, renal dysfunction, atypical chest pain, and multivessel disease.

Differences in incident and recurrent myocardial infarction among White and Black individuals aged 35 to 84: Findings from the ARIC community surveillance study

No previous study has examined racial differences in recurrent acute myocardial infarction (AMI) in a community population. We aimed to examine racial differences in recurrent AMI risk, along with first AMI risk in a community population. The community surveillance of the Atherosclerosis Risk in Communities Study (2005-2014) included 470,000 people 35 to 84 years old in 4 U.S. communities. Hospitalizations for recurrent and first AMI were identified from ICD-9-CM discharge codes. Poisson regression models were used to compare recurrent and first AMI risk ratios between Black and White residents. Recurrent and first AMI risk per 1,000 persons were 8.8 (95% CI, 8.3-9.2) and 20.7 (95% CI, 20.0-21.4) in Black men, 6.8 (95% CI, 6.5-7.0) and 14.1 (95% CI, 13.8-14.5) in White men, 5.3 (95% CI, 5.0-5.7) and 16.2 (95% CI, 15.6-16.8) in Black women, and 3.1 (95% CI, 3.0-3.3) and 8.8 (95% CI, 8.6-9.0) in White women, respectively. The age-adjusted risk ratios (RR) of recurrent AMI were higher in Black men vs White men (RR, 1.58 95% CI, 1.30-1.92) and Black women vs White women (RR, 2.09 95% CI, 1.64-2.66). The corresponding RRs were slightly lower for first AMI: Black men vs White men, RR, 1.49 (95% CI, 1.30-1.71) and Black women vs White women, RR, 1.65 (95% CI, 1.42-1.92) CONCLUSIONS: Large disparities exist by race for recurrent AMI risk in the community. The magnitude of disparities is stronger for recurrent events than for first events, and particularly among women.

Effect of Serum Spermidine on the Prognosis in Patients with Acute Myocardial Infarction: A Cohort Study

Background: Spermidine, a natural polyamine, was found critically involved in cardioprotection and lifespan extension from both animal experiments and human studies. Aims: This study aimed to evaluate the effect of serum spermidine levels on the prognosis in patients with acute myocardial infarction (AMI) and investigate the potential mediation effect of oxidative stress in the above relationship. Methods: We included 377 patients with AMI in a prospective cohort study and measured serum spermidine and oxidative stress indexes (superoxide dismutase enzymes, glutathione peroxidase, and Malondialdehyde) using high-performance liquid chromatography with fluorescence detector and enzyme-linked immunosorbent assay, respectively. The associations of spermidine with AMI outcomes were evaluated using Cox proportional hazards models. Results: 84 (22.3%) major adverse cardiac events (MACE) were documented during a mean follow-up of 12.3 ± 4.2 months. After multivariable adjustment, participants with serum spermidine levels of ≥15.38 ng/mL (T3) and 7.59–5.38 ng/mL (T2) had hazard ratio (HR) for recurrent AMI of 0.450 [95% confidence interval (CI): 0.213–0.984] and 0.441 (95% CI: 0.215–0.907) compared with the ≤7.59 ng/mL (T1), respectively. Participants in T3 and T2 had HR for MACE of 0.566 (95% CI: 0.329–0.947) and 0.516 (95% CI: 0.298–0.893) compared with T1. A faint J-shaped association was observed between serum spermidine levels and the risk of MACE (p-nonlinearity = 0.036). Comparisons of areas under receiver operator characteristics curves confirmed that a model including serum spermidine levels had greater predictive power than the one without it (0.733 versus 0.701, p = 0.041). A marginal statistically significant mediation effect of superoxide dismutase was shown on the association between spermidine and MACE (p = 0.091). Conclusions: Serum spermidine was associated with an improved prognosis in individuals with AMI, whereas the underlying mechanism mediated by oxidative stress was not found.

Liver stiffness assessed by Fibrosis-4 index predicts heart failure in AMI patients

Abstract Funding Acknowledgements Type of funding sources: None. It has been recently reported that the liver stiffness, which reflects increased central venous pressure, measured by transient elastography increases along with decompensated heart failure (HF) developing and decreases with clinical improvement. A simple index for the assessment of liver stiffness and/or impairment of liver reserve may be useful in patients with HF. We calculated each patient´s FIB4 index(F4I) using the following formula: (age (years)× aspartate aminotransferase (IU/L)/platelet count (10９/L)× square root of alanine aminotransferase (IU/L)). Patients with an F4I≥2.67 were classified into the high F4I group and these patients were strongly suspected to have non-alcoholic fatty liver disease (NAFLD). NAFLD is also said to be a form of metabolic syndrome expressed in the liver. And lately NAFLD is associated with increased risk of acute myocardial infarction (AMI) and stroke and cardiovascular surrogate markers. But Little is known about F4I with the influence of AMI prognosis. This study included 167 AMI patients who underwent primary percutaneous coronary intervention within 24h of onset. Consecutive patients were divided into two groups based on their F4I at discharge: First group (2.67 ≤F4I, n = 27), second group (F4I <2.67, n = 140) . And we assessed the association between F4I and CV events including cardiac death, recurrent AMI, recurrent PCI (TLR) and re-hospitalization of heart failure during 13 months. Result: High F4I (2.67≤ F4I ,19% VS F4I <2.67, 6%: P = 0.045) related to the re-hospitalization of heart failure. Univariate odds ratio was 3.45. F4I is significantly related to the re-hospitalization of heart failure. Conclusion: A simple index F4I is significantly related to the prognosis of adverse cardiac events after AMI patients. Abstract Figure. Predictor of Re-hospitalization of HF

Investigation on the Effect of Graded Emergency Nursing Group under the Assistance of Multidisciplinary First Aid Knowledge Internet-Based Approach on the First Aid of Acute Myocardial Infarction.

Objective To analyze the effect of a graded emergency nursing group under the assistance of multidisciplinary first aid knowledge Internet-based approach on the first aid of acute myocardial infarction (AMI). Methods The clinical data of 90 AMI patients treated in our hospital from March 2019 to March 2020 were selected for the retrospective analysis, and the patients were divided into the observation group and the routine group according to the first aid order, with 45 cases each. The patients in the routine group received the conventional first aid measures, and the graded emergency nursing group mode with the help of multidisciplinary first aid knowledge Internet-based approach was adopted for those in the observation group so as to compare the prognosis, nursing satisfaction scores, etc., between the two groups. Results Compared with the routine group, patients in the observation group obtained significantly lower various fast reaction indicators and quality of life score (P < 0.001), higher nursing satisfaction score (P < 0.001), lower total complication rate (P < 0.05), higher successful rescue rate (P < 0.05), and lower AMI recurrence rate and PCI reuse rate (P < 0.05). Conclusion Rescue measures by the graded emergency nursing group with the help of multidisciplinary first aid knowledge Internet-based approach are a reliable method for improving AMI patients, and such strategy greatly promotes patients' quality of life and reduces the PCI reuse rate. Further research will be conducive to establishing a better solution for AMI patients.

Prognostic differences of catestatin among young and elderly patients with acute myocardial infarction.

Previous studies have reported inconsistent findings regarding the association between catestatin and outcomes of acute myocardial infarction (AMI). This study aims to investigate the prognostic value of catestatin for long-term outcomes in patients with AMI. One hundred and sixty-five patients with AMI were enrolled in this series. The plasma catestatin levels at baseline and clinical data were collected. All patients were followed up for four years to investigate whether there were major adverse cardiovascular events (MACEs), including cardiovascular death, recurrent AMI, rehospitalization for heart failure, and revascularization. There were 24 patients who had MACEs during the follow-up period. The MACEs group had significantly lower plasma catestatin levels (0.74±0.49 ng/mL vs. 1.10±0.79 ng/mL, P=0.033) and were older (59.0±11.4 years old vs. 53.2±12.8 years old, P=0.036). The rate of MACEs was significantly higher in the elderly group (≥60 years old) than in the young group (<60 years old) (23.8% [15/63] vs. 8.8% [9/102], P=0.008). The catestatin level was significantly lower in the MACEs group than that in the non-MACEs group (0.76±0.50 ng/mL vs. 1.31±0.77 ng/mL, P=0.012), and catestatin was significantly associated with MACEs (Kaplan Meier, P=0.007) among the elderly group, but not in the young group (Kaplan Meier, P=0.893). In the Cox proportional hazards regression, high catestatin was one of the independent factors for predicting MACEs after adjustment for other risk factors (hazard ratio 0.19, 95% confidence interval 0.06-0.62, P=0.006) among elderly patients. Elderly AMI patients with lower plasma catestatin levels are more likely to develop MACEs. Catestatin may be a novel marker for the long-term prognosis of AMI, especially in elderly patients.

THE ROLE OF NT-PROBNP AND ST2 BIOMARKERS IN PATIENTS WITH ACUTE CORONARY SYNDROME

The aim: To determine the diagnostic value of serum levels of ST2 in patients with the acute coronary syndrome (ACS) and its correlation with NT-proBNP levels. Materials and methods: NT-proBNP and ST2 concentration in serum of patients was measured on admission to the hospital and on the 10th day of the treatment using NT-proBNP ELISA (Biomedica, Slovakia) and Presage ST2 assay (Critical Diagnostics, USA), respectively. Results: Statistically significant direct correlations (p&lt;0.05). The simultaneous increase of ST2 and NT-proBNP serum levels above their threshold in patients with ACSelST (sensitivity – 92.5 %, specificity – 74.2 %, AUC – 0.893, р&lt;0.05) indicated a significant risk of cardiovascular (CV) complications of acute myocardial infarction (AMI) during the inpatient period, e.g. acute heart failure, acute LV aneurysm, recurrent AMI, as well as rhythm and conductivity disturbances. Conclusions: The data suggest that both ST2 and NT-proBNP may prove useful in predicting unfavorable prognosis during the inpatient care of AMI, as the simultaneous increase of these biomarkers above their threshold values indicates a significant risk of CV complications.

PROGNOSTICATION OF COMPLICATED COURSE OF ACUTE MYOCARDIAL INFARCTION WITH CONCOMITANT TYPE 2 DIABETES MELLITUS BASED ON USE OF ENDOTHELIAL MONOCYTE ACTIVATING POLYPEPTIDE-ІІ

The aim: To determine the prognostic value of endothelial monocytic peptide ІІ in the course of AMI (acute myocardial infarction) in combination with type 2 diabetes mellitus (DM) Materials and methods: The study involved 120 patients divided in 2 groups: Group 1 – patients with acute myocardial infarction (AMI) with concomitant type 2 DM (n=69); Group 2 – patients with AMI without concomitant type 2 DM (n=51). Control group was composed with 20 almost healthy persons. Results: It was determined that in patients with AMI in combination with type 2 diabetes, the level of endothelial monocyte-activating polypeptide II (EMAP-II) was 1.65 times higher than in patients without concomitant type 2 DM (p &lt;0.05). The patients with AMI and type 2 DM who were included in the group of the 3rd tertile according to level of EMAR-II had the complicated course compared to patients in the groups of the 1st and 2nd tertiles. Q-positive AMI was found in 100% of patients who belonged to the group of the 3rd tertile; recurrence of AMI occurred only in patients whose EMAR-II index was included in the 3rd tertile. Conclusions: According to the results of endothelial function analysis with usу ща the marker of EMAP-II endothelial dysfunction in patients with AMI and concomitant type 2 DM, the increased level of this parameter was characteristic of pronounced violation of dilatation properties of the vascular wall and of the other indicators of complicated comorbid conditions.

PROGNOSTIC VALUE ENDOTHELIAL MONOCYTE ACTIVATING POLYPEPTIDE – ІІ IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION IN COMBINATION WITH 2 DIABETES MELLITUS AS A MARKER OF RECURRENT CARDIOVASCULAR EVENTS WITHIN 6 MONTHS OF OBSERVATION

The aim of the research. Analyze the prognostic value of endothelial monocyte activating polypeptide – ІІ as a marker of recurrent cardiovascular events in patients with acute myocardial infarction with type 2 diabetes mellitus within 6 months of follow-up after a coronary event.&#x0D; Materials and methods. The research involved 120 patients. All subjects were included in 2 groups: group 1 - patients with acute myocardial infarction (AMI) and type 2 diabetes mellitus (DM), group 2 - patients with AMI (n = 50). The control group included 20 healthy individuals.&#x0D; Examination of patients was performed on the basis of the cardiology department for patients with acute myocardial infarction KNP "City Clinical Hospital №27" HMR and the 1st cardiology department of Kharkiv Clinical Hospital by rail №1 branch "Health Center" of the Joint Stock Company "Ukrainian Railways" .&#x0D; The participants of the research on the first day of AMI were determined the level of human endothelial monocyte activating polypeptide – ІІ (EMAP-II) in the serum using enzyme-linked immunosorbent assay using a commercial test system manufactured by Bioassay Technology Laboratory (China) in accordance with the enclosed instructions on enzyme-linked immunosorbent assay "Labline-90" (Austria).&#x0D; General clinical and instrumental examinations were performed on patients who were part of the 1st, 2nd groups and control groups.&#x0D; People who participated in the research were informed about the purpose, objectives, materials and methods of the research by signing an informed consent to participate in it. During the research, measures were taken to ensure the anonymity of each of its participants.&#x0D; Statistical processing of survey results was performed using software package StatSoft Inc USA - "Statistica 6.0".&#x0D; Research results. The average level of EMAP-II in patients who were in the 1st group was 4.54 ± 0.331 ng / ml, the 2nd - 2.74 ± 0.21 ng / ml, in the control group - 1.1 ± 0.037 ng / ml (p &lt;0.05).&#x0D; A recurrent cardiovascular event in the form of recurrent AMI occurred in 19 patients (27.14%) who were part of the 1st group and in 7 patients (14%) who belonged to the 2nd group.&#x0D; The research found that the value of EMAR-II&gt; 5.42 μmol / l in patients with AMI in combination with type 2 diabetes and&gt; 2.64 μmol / l in patients with AMI without concomitant type 2 DM is a predictor recurrence of AMI within 6 months of follow-up after a coronary event.&#x0D; Based on the results of the research, a multifactor logistic regression model for the prognosis of recurrent AMI in patients with AMI in combination with type 2 DM was developed using EMAR-II for 6 months of follow-up after a coronary event.&#x0D; Conclusions. Thus, the level of endothelial monocyte activating polypeptide – ІІ in patients with acute myocardial infarction correlates with the presence of comorbid pathology in the form of type 2 diabetes mellitus, having the highest level in its presence, reflecting endothelial dysfunction that pathogenetically combines these diseases.&#x0D; According to the above, to date, the question remains about the prognostic value of endothelial monocyte activating polypeptide – ІІ in acute myocardial infarction in patients with concomitant type 2 diabetes mellitus during the 6-month follow-up period after a cardiovascular event.&#x0D; It is advisable to further research the rate of endothelial dysfunction - endothelial monocyte activating polypeptide – ІІ as a predictor of recurrent cardiovascular events in patients with acute myocardial infarction in combination with concomitant type 2 diabetes mellitus within 6 months after the coronary event.

In-Hospital Characteristics and 30-Day Readmissions for Acute Myocardial Infarction and Major Bleeding in Patients With Active Cancer

There are limited data on readmission with ischemic and major bleeding events in patients with acute myocardial infarction (AMI) with active cancer. The purpose of our study was to evaluate in-hospital characteristics and 30-day readmission rates for recurrent AMI and major bleeding by cancer type in patients with AMI and active cancer. From 2016 through 2018, patients in the Nationwide Readmission Database admitted with AMI and underlying active colon, lung, breast, prostate, and hematological cancers were included. Thirty-day readmission for recurrent AMI and major bleeding were reported. Of 1,524,677 index hospitalizations for AMI, 35,790 patients (2.2%) had cancer (0.9% hematological; 0.5% lung; 0.4% prostate; 0.2% breast; and 0.1% colon). Compared with patients without cancer, patients with cancer were about 6 to 10 years older and had a higher proportion of atrial fibrillation, valvular heart disease, previous stroke, and a greater co-morbidity burden. Of all cancer types, only active breast cancer (adjusted odds ratios 1.82, 95% CI 1.11 to 2.98) was found to be significantly associated with elevated odds of readmission for major bleeding; no such association was observed for recurrent AMI. In conclusion, AMI in patients with breast cancer is associated with significantly greater odds of readmission for major bleeding within 30 days after discharge. Management of patients with concomitant AMI and cancer is challenging but should be based on a multidisciplinary approach and estimation of an individual patient's risk of major coronary thrombotic and bleeding events.

Role of oxidant-antioxidant enzymes in managing the cardiovascular risks in nephrotic syndrome patients

Increased reactive oxygen species (ROS) in nephrotic syndrome (NS) are involved in the oxidation of membrane proteins, lipoproteins and several receptor molecules ultimately leading to their functional deficit. It is involved in the pathogenesis of dyslipidemia in NS and also increases the oxidation of LDL (oxLDL), which is an important risk factor in thrombus generation and atherosclerosis. Myeloperoxidase (MPO) is an early predictor of myocardial infarction and adverse cardiac events in patients with chest pain. MPO can also foresee the recurrent acute coronary syndrome (ACS) and myocardial infarction in patients. ‘MPO oxidized LDL’ also induces ROS production, lipid accumulation and reduces the antioxidant response in macrophages, however in an augmented way by using different pathways and might be more atherogenic. Paraoxonase 1 (PON1) prevents the oxidative modification of serum lipoproteins, which is one of the crucial steps in the initiation of atherogenesis. PON1 also contributes to the anti-atherogenic effect of HDL-c. Adult NS patients have increased lipid hydroxide levels and significantly decreased PON1 activity and total sulfhydryl levels when compared to healthy controls. While the increased risk of cardiovascular disease in NS patients is well documented, the exact etiology still remains controversial. This prevents the development of a specific treatment modality for the same. MPO as well as PON1 were found as important markers for the management of cardiovascular risk in NS patients. Estimation of these enzymes can therefore be performed in routine clinical practice as prognostic markers, owing to its ease of estimation and cost effectiveness.

When More Means Less: The Prognosis of Recurrent Acute Myocardial Infarctions.

Recurrent acute myocardial infarctions (AMI) are common and associated with dismal outcomes. We evaluated the clinical characteristics and the prognosis of AMI survivors according to the number of recurrent AMIs (ReAMI) and the time interval of events (TI). A retrospective analysis of patients who survived following hospitalization with an AMI throughout 2002–2017 was conducted. The number of ReAMIs for each patient during the study period was recorded and classified based on following: 0 (no ReAMIs), 1, 2, ≥3. Primary outcome: all-cause mortality up to 10 years post-discharge from the last AMI. A total of 12,297 patients (15,697 AMI admissions) were analyzed (age: 66.1 ± 14.1 years, 68% males). The mean number of AMIs per patient was 1.28 ± 0.7; the rates of 0, 1, 2, ≥3 ReAMIs were 81%, 13.4%, 3.6% and 1.9%, respectively. The risk of mortality increased in patients with greater number of AMIs, HR = 1.666 (95% CI: 1.603–1.720, p < 0.001) for each additional event (study group), attenuated following adjustment for potential confounders, AdjHR = 1.135 (95% CI: 1.091–1.181, p < 0.001). Increased risk of mortality was found with short TI (<6-months), AdjHR = 2.205 (95% CI: 1.418–3.429, p < 0.001). The risk of mortality following AMI increased as the number of ReAMIs increased, and the TI between the events shortened. These findings should guide improved surveillance and management of this high-risk group of patients (i.e., ReAMI).

Asymmetric dimethylarginine – a marker of repeated cardiovascular events in patients with comorbid pathology

Annotation. Today, diseases of the cardiovascular system retain their leading position among the incidence in the world. The presence of comorbid pathology in the form of type 2 diabetes mellitus (DM) significantly complicates the course of these diseases, worsening its prognosis. The aim of the study: to analyze the prognostic value of asymmetric dimethylarginine (ADMA) as a marker of recurrent cardiovascular events in patients with acute myocardial infarction with type 2 diabetes for 6 months of follow-up. 120 patients were examined: group 1 – patients with acute myocardial infarction (AMI) in combination with type 2 diabetes mellitus (n=70), group 2 - patients with isolated AMI (n=50). The control group included 20 practically healthy individuals. All patients underwent general clinical and instrumental examinations, on the first day of AMI the level of ADMA was determined using a commercial test system "Human Asymmetrical Dimethylarginine ELISA". Statistical processing of the obtained data was performed using the software package StatSoft Inc, USA – "Statistica 6.0". The analysis of the average level of ADMA showed a significantly higher value of this indicator in patients with AMI in combination with type 2 DM than in patients without concomitant type 2 DM 2.57 times (1.57±0.11 μmol / l and 0.61±0.06 μmol / l, respectively), (p&lt;0,05. ADMA level &gt;1,72 μmol / l in patients with AMI in combination with type 2 DM and &gt;0,69 μmol / l in patients with AMI without concomitant type 2 DM was identified as a predictor of recurrent acute myocardial infarction within 6 months of follow-up. Thus, the level of ADMA was higher in the presence of comorbid pathology in the form of type 2 DM in patients with AMI, reflecting endothelial dysfunction combining disease. It is advisable to further study this indicator of endothelial dysfunction as a predictor of the adverse course of AMI in combination with concomitant type 2 DM.

Adherence to guideline-recommended care following acute myocardial infarction: impact on clinical outcomes at 90 days and 1 year

Abstract Background Guideline-recommended care is effective for secondary prevention following acute myocardial infarction (AMI); however, most pharmacotherapies take time to become efficacious and not all patients comply with treatment. It is well established that the risk of recurrent cardiovascular (CV) events is high following an AMI; however, the clinical burden of recurrent CV events among guideline-treated patients, specifically in the 90-day period post-AMI, has been relatively unexplored. Purpose To evaluate adherence to guideline-recommended care and determine how it impacts clinical outcomes at 90 days and 1 year post-discharge in a U.S. population. Methods A retrospective analysis was conducted using the IBM Health Marketscan Commercial Claims and Encounters database (July 1, 2013–June 1, 2016). In U.S. individuals with a primary diagnosis of AMI, adherence to evidence-based care was assessed in terms of claims for guideline-recommended interventions: completed physician follow-up visit within 30 days of discharge, participation in cardiac rehabilitation, and adherent (PDC ≥0.8) to beta-blocker, antiplatelet, statin, and ACE inhibitor/ARB drug classes in the year following discharge. Rates of rehospitalisation (all-cause and cardiac) and recurrent AMI events within 90 days and 1 year post-AMI were evaluated. Results Of the 21,977 patients included in the analysis, the majority (80.9%) visited a physician within 30 days of discharge, but few (15.4%) entered cardiac rehabilitation or were adherent to all guideline-recommended drug classes (17.1%). Even in patients fully compliant with guideline-recommended care (3.1% of the total population), event rates were high in the first year post-MI (recurrent AMI: 1.6%; cardiac rehospitalisation: 8.9%; all-cause hospitalisation 13.3%) with a large proportion of the events occurring in the first 90 days: 75%, 58.4%, and 51.1% respectively. Adherence to all drug classes significantly reduced the risk of all-cause and cardiac rehospitalisation but did not reduce the risk of recurrent AMI events (OR=1.03 [95% CI 0.73–1.46] at 90 days and OR=0.80 [95% CI 0.60–1.07] at 1 year) when compared to patients not receiving guideline-recommended pharmacotherapy. Conclusions Even among patients receiving guideline-recommended treatment following discharge, the risk of recurrent events remained high at both 90 days and 1 year in patients following an AMI. Novel approaches to reducing the risk of early recurrent AMI, in particular, are needed. Funding Acknowledgement Type of funding sources: Private company. Main funding source(s): CSL Behring

Prognostic impact of malnutrition in elderly patients with acute myocardial infarction.

We aimed to investigate the prevalence and the prognostic impact of malnutrition using the geriatric nutritional risk index (GNRI) in elderly patients with acute myocardial infarction (AMI). We investigated 130 consecutive patients aged ≥ 75years who were discharged following successful primary coronary intervention between March 2009 and December 2016. The mean age of the patients was 81.5 ± 5.0years, and 55.4% of them were male. At discharge, the patients' nutritional statuses were evaluated using the GNRI, which were calculated as follows: 14.89 × serum albumin (g/dL) + 41.7 × body mass index/22. The patients were divided into two groups, a low GNRI group (GNRI < 92) with nutrition-related risk and a high GNRI group (GNRI ≥ 92) without nutrition-related risk. The mean GNRI score of all patients was 95.2 ± 11.0, and 46 patients (35.4%) had a low GNRI score. During the mean follow-up of 1030 ± 850days, the all-cause mortality was significantly higher in the low GNRI group than in the high GNRI group (32.6% vs. 13.1%, p < 0.001), while the event rates of AMI recurrence and hospitalization due to heart failure did not differ significantly between the two groups. Multivariate Cox proportional analysis revealed that low GNRI was a modest but independent predictor of mortality (hazard ratio, 0.94; 95% confidence interval 0.90-0.98; p = 0.01). Among elderly patients with AMI, malnutrition assessed using the GNRI was often encountered and was an independent predictor of long-term mortality.

MiR-6718-5p and miR-4329 can be used as potential biomarkers for acute myocardial infarction.

The prevention and prognosis of the onset or recurrence of acute myocardial infarction (AMI) is a difficult problem in contemporary research. In this study, peripheral blood samples were collected from seven patients with AMI and nine healthy adults, and exosome microRNAs (miRNAs) were extracted. The miRNA differential expression profiles of serum exosomes in patients with AMI were obtained by using the next-generation sequencing technology combined with bioinformatics analysis. Reverse-transcriptase polymerase chain reaction (RT-PCR) was used to verify the primary screening of differential exosome miRNAs to reveal the possible mechanism of their action on AMI. Compared with healthy individuals, 544 miRNAs were upregulated and 518 miRNAs were downregulated in AMI patients preoperatively. Among these miRNAs, we selected miR-6718 and miR-4329 for qPCR verification. The expression of miR6718 and miR-4329 in patients with myocardial infarction was significantly lower than that in normal controls.

Prognostic Value of Residual Coronary Artery Lesions on the SYNTAX Scale in Patients with Acute Myocardial Infarction without SТ Segment Elevation in the Mid-Term Period.

Aim To study the effect of residual coronary injury after a percutaneous coronary intervention (PCI), as evaluated with the SYNTAX scale (residual SYNTAX score, RSS), on the mid-term prognosis for patients with non-ST elevation acute myocardial infarction (NSTEMI) and also to determine threshold RSS values for patients at high and low risk of adverse cardiac events.Material and methods A single-center, retrospective study was performed. From 421 patients with NSTEMI after PCI with stenting, 169 patients were selected who originally had multivessel coronary disease and who had undergone a repeated inpatient examination, including mid-term (11.7±3.0 mos.) coronary angiography. The endpoints were recurrent clinical manifestations of angina, repeat revascularization (RR), unstable angina (UA), recurrent acute myocardial infarction (AMI), cardiac death, and also a composite endpoint (major adverse cardiac events, MACE) that included UA, recurrent AMI, and cardiac death. After revealing a significant direct correlation between RSS and the probability of recurrent AMI, UA, MACE, or RR (p &lt;0.05) using the ROC analysis, we have established threshold RSS values that divided patients into groups with high and low risk of the cardiac events listed above.Results For a significantly high risk of recurrent AMI (area under the curve, AUC 0.79±0.05; 95 % confidence interval, CI 0.68-0.89; р=0.048), the threshold RSS score was 8 (sensitivity 100 %, specificity 70.9 %). For UA and MACE, the RSS scores were both 3 (AUC 0.68±0.5; 95 % CI 0.58-0.79; p=0.005 and AUC 0.71±0.05; 95 % CI 0.61-0.8; p=0.001, respectively). The probability of UA during the observation period with RSS &gt;3 was 4.07 times higher and that of MACE was 5.23 times higher than with RSS&lt;3 (95 % CI 1.44-11.49; р=0.01 and 95 % CI 1.88-14.53; р=0.001, respectively).Conclusion The study demonstrated a significant, direct correlation between the RSS and the risk of adverse cardiac events in patients with NSTEMI during one year of observation. Specific threshold values were obtained, which may help in choosing both the extent of revascularization and the tactics for postoperative management of patients.

CLINICAL FEATURES OF THE REHABILITATION PERIOD AFTER THE PREVIOS MYOCARDIAL INFARCTION AND DECOMPENSATED HEART FAILURE WITH ACCOUNT OF CARDIOVASCULAR RISK FACTORS

Cardiovascular diseases (CVD) are known to account for one-third of all deaths worldwide. According to the American Heart Association, 18% of men and 35% of women with prior acute myocardial infarction (AMI) developed recurrent AMI within 6 years after initial MI; 22% of men and 46% of women were disabled due to the development of chronic heart failure (CHF).&#x0D; The purpose of the research: to analyse clinical features of recovering period after myocardial infarction taking into account cardiovascular risk factors.&#x0D; Materials and methods of the research. 175 persons with myocardial infarction and related risk factors were examined. Study groups were homogenous by age, gender, disease severity, clinical signs of decompensation, that served as a basis for inclusion of the patients in the research.&#x0D; All patients underwent the general-clinical examination (pain syndrome analysis, medical history, objective signs), clinical and instrumental (electrocardiography, echocardioscopy, 6-minute walk test, in a quiet 30-50-m long hospital corridor in the morning) and laboratory tests (lipidogram, leptin level). Study groups were homogenous by age, gender, disease severity, duration of the post-infarction period, clinical signs of decompensation. All patients were divided into groups according to the presence of risk factors: group 1 of MI with HF (74 patients), group 2 – MI with AH (76 patients), group 3 – MI and obesity (72 patients); group 4 consisted of patients with all risk factors (78 patients) together. The obtained results were statistically processed on the personal computer by means of an advanced analytics software package STATISTICA-7 and a statistical software package “Microsoft-Excel” using the statistical variation analysis.&#x0D; Research results and their discussion. The most important cardiovascular risk factors, which aggravate the post infarction period are age, arterial hypertension, diabetes mellitus, heart failure, congenital and acquired valvular defects, obesity. In patients with heart failure, recovering period is characterized by stabile heartbeat, reduced exercise tolerance combined with progressing dilatation of left ventricular chambers in 83.78% of patients. Patients with arterial hypertension have stable anginal pain syndrome and reduced exercise tolerance (89.47% of cases). In obese patients, consistent fatigue, general weakness, dyspnoea, high levels of total cholesterol and leptin in blood serum (81.94% of patients) are mostly observed. In patients with combined heart failure, arterial hypertension, obesity, the recovery period clinics after myocardial infarction is characterized by significantly reduce of exercise tolerance (92.30% of patients). Shortness of breath, which was accompanied by heart palpitations, was prevalent in the group of patients with HF (89.1%) and was the least manifested in the group of patients with obesity (52.7%).&#x0D; Conclusions. Changes in cardiac hemodynamics in patients who had undergone the myocardial infarction with concomitant heart failure and with a combination of risk factors were accompanied by the eccentric hypertrophy onset, characterized by a combination of the left venricle cavities dilation with hypertrophy of its walls and the decreased contractility. The presence of decompensated heart failure significantly degrades the performance of six-minute walk test.

Recurrent Episodes of ST-Elevation Myocardial Infarction in a 19-Year-Old Male with Fontan Circulation

We describe a case of a 19-year-old male with history of single ventricle physiology status post-Fontan procedure at the age of two who developed thromboembolic phenomena involving his splenic, renal and coronary arteries resulting in multiple infarcts and recurrent in-hospital acute ST-Segment Elevation Myocardial Infarction (STEMI) treated by emergent Percutaneous Coronary Intervention (PCI). This case highlights multiple aspects and challenges of managing young patients with congenital heart disease.

Impact of renin angiotensin system inhibitor on 3-year clinical outcomes in acute myocardial infarction patients with preserved left ventricular systolic function: a prospective cohort study from Korea Acute Myocardial Infarction Registry (KAMIR)

BackgroundPatients with acute myocardial infarction (AMI) are usually treated with angiotensin-converting enzyme inhibitors (ACEIs), or angiotensin receptor blockers (ARBs) if ACEIs are not tolerated. However, there is no data regarding the impact of switching from ACEIs to ARBs on long-term clinical outcomes in AMI patients with preserved left ventricular (LV) systolic function especially beyond 1 year. To investigate the effectiveness of treatment with ACEIs or ARBs on clinical outcomes over 3 years in AMI patients with preserved LV systolic function following percutaneous coronary intervention.MethodIt is a prospective cohort study using data from a nationwide large scale registry with 53 hospitals involved in treatment of acute myocardial infarction (AMI) in Korea. Between March 2011 and September 2015, we enrolled 6236 patients with AMI who underwent primary percutaneous coronary intervention and had a left ventricular ejection fraction ≥ 50%. Main outcome measures composite of total death or recurrent AMI over 3 years after AMI. Patients were divided into an ACEI group (n = 2945), ARB group (n = 2197), or no renin-angiotensin system inhibitor (RASI) treatment (n = 1094). We analyzed patients who changed treatment. Inverse probability of treatment weighting (IPTW) analysis was also performed.ResultsAfter the adjustment with inverse probability weighting, the primary endpoints at 1 year, AMI patients receiving ACEIs showed overall better outcomes than ARBs [ARBs hazard ratio (HR) compared with ACEIs 1.384, 95% confidence interval (CI) 1.15–1.71; P = 0.003]. However, 33% of patients receiving ACEIs switched to ARBs during the first year, while only about 1.5% switched from ARBs to ACEIs. When landmark analysis was performed from 1 year to the end of the study, RASI group showed a 31% adjusted reduction in primary endpoint compared to patients with no RASI group (HR, 0.74; 95% CI 0.56–0.97; P = 0.012).ConclusionsThis result suggests that certain patients got benefit from treatment with ACEIs in the first year if tolerated, but switching to ARBs beyond the first year produced similar outcomes. RASI beyond the first year reduced death or recurrent AMI in AMI patients with preserved LV systolic function.CRIS Registration number: KCT0004990.