bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unraveling the paradox: the impact of one or more traditional risk factors on short-term mortality following acute coronary syndromes.
Authors: Bergami M , Cenko E , Yoon J , Vasiljevic Z , Mendieta G , Zdravkovic M , Vavlukis M , Kedev S , Milicic D , Badimon L , Manfrini O , Bugiardini R 
Published: October 2024

Abstract

Background
It has been recently suggested that individuals without exposure to any standardized modifiable risk factors may have an increased risk of all-cause mortality from acute coronary syndromes (ACS) compared with their counterparts with one or more risk factors, including diabetes.

Purpose
To estimate the individual contribution of the four traditional risk factors to the risk of adverse outcomes from first ACS.

Methods
We analyzed data from 70,953 Caucasian patients presenting with first ACS, but without prior coronary heart disease in the International Survey of Acute Coronary Syndromes (ISACS) Archives registry network from October 2005 to January 2021. The primary outcome was all-cause mortality within 30 days after hospital admission. We calculated sex-specific risk ratios (RRs) stratifying traditional risk factors, current smoking, diabetes, hypercholesterolemia and hypertension into mutually exclusive categories using a balancing strategy by inverse probability weighting.

Results
Compared with patients presenting without risk factors, those with diabetes had significantly higher 30-day mortality in both women (RR, 1.29; 95% CI, 1.06-1.57) and men (RR, 1.40; 95% CI, 1.16-1.69). By contrast, patients who were current smokers or presented with a history of hypercholesterolemia or hypertension had significantly lower 30-day mortality than patients with no risk factors with RRs ranging from 0.53; 95% CI 0.42–0.67 in women who were smokers to 0.46; 95% CI 0.37–0.59 in men with hypercholesterolemia. The impact of diabetes on mortality was obscured in patients who concomitantly presented with diabetes and one more traditional risk factor. The RRs in combination with current smoking were 1.39; 95% CI 0.92 -2.09 in women and 0.89; 95% CI 0.68 -1.17 in men; with hypercholesterolemia: 0.91; 95% CI 0.66 -1.25 in women and 0.75; 95% CI 0.53–1.06 in men; with hypertension: 1.14; 95% CI 0.99–1.32 in women and 1.12; 95% CI 0.96–1.31 in men.

Conclusions
Diabetes confers a significant independent excess mortality risk at 30 days following ACS. Dilution bias in this setting refers to the weakening of the observed effect of diabetes because of the inclusion of "one more" risk factor with lower risk profile. Potential misinterpretation of the relationship between diabetes and death from ACS may negatively affect healthcare organization
The impact of SYNTAX score on culprit lesion morphology of acute coronary syndrome
Authors: Arai T , Mori H , Sekimoto T , Sakai R , Sato S , Tanaka H , Ogura K , Masaki R , Kosaki R , Koshiro S , Kondo S , Tsujita H , Tsukamoto S , Shinke T 
Published: October 2024

Abstract

Background
The SYNTAX score quantifies the complexity of coronary artery morphology and is useful in determining the indication for CABG (Coronary Artery Bypass Grafting) or PCI (Percutaneous Coronary Intervention), which often reflect coronary artery disease severity. However, how SYNTAX score affects etiology of ACS (Acute Coronary Syndrome) patients observed by OCT (Optical Coherence Tomography) has been unclear.

Methods
This is a sub study of TACTICS OCT registry (n=702) which include ACS patients who underwent OCT guided PCI. Based on SYNTAX score, patients were divided into low-SYNTAX-group (1-22 points) and high-SYNTAX-group (23 points or higher). ACS culprit lesions were classified into plaque rupture (PR), plaque erosion (PE), and calcified nodule (CN). We compared patient characteristics and culprit lesions in low-group and high-group.

Results
High-SYNTAX-group was significantly younger with relatively greater prevalence of diabetes and lower body mass index. Peak CK, LVEF, Multi vessel and TIMI grade were also significantly greater in high-SYNTAX-group than low-SYNTAX-group. Although PR and PE were 2 most common etiologies of ACS in both groups, proportion of CN was much greater in high-SYNTAX-group than low-SYNTAX-group.

Conclusion
High-SYNTAX score was likely to have impact on ACS etiology increasing proportion of CN.
Echocardiography in acute pulmonary embolism for the prediction of subsequent CTEPH
Authors: Dzikowska-Diduch O , Kurnicka K , Lichodziejewska B , Zdonczyk O , Dudzik-Niewiadomska I , Labyk A , Zielinski D , Ou-Pokrzewinska A , Roik M , Pruszczyk P 
Published: October 2024

Abstract

Background
Chronic thromboembolic pulmonary hypertension (CTEPH) is a long term complication of acute pulmonary embolism (APE) with poor outcomes if untreated. Identifying already at APE diagnosis patients at risk of subsequent CTEPH can lead to earlier goal-directed management. Since standard echocardiography (TTE) is frequently performed during APE episode for short term risk stratification we aimed to asses prediction vale of echocardiography for subsequent CTEPH.

Methods
We analyzed retrospectively TTE performed at admission due to APE in consecutive patients, without known CTEPH who were anticoagulated for at least 3 months and were followed up for at least 24 months. After follow-up all patients underwent diagnostic workup for CTEPH according to ESC recommendations. We tried to define a set of echocardiographic parameters recorded during the acute episode predictive for CTEPH.

Results
The study included consecutive 625 patients with APE diagnosed at computed tomography pulmonary angiogram and managed according to ESC recommendations. During follow up 25 (4%) pts were diagnosed with CTEPH. At APE diagnosis CTEPH(+) group presented more prominent echocardiographic signs of right ventricular (RV) overload than pts without CTEPH (CTEPH(-))(table 1). However, multivariate analysis revealed that only increased TRPG and RV/LV ratio were significant CTEPH predictors with AUC 0.792 (95% CI: 0.683-0.900), p&lt;0.001 and 0.777 (95% CI: 0.675-0.878), p&lt;0.001 respectively (fig 1). Using Youden index in ROC analysis we defined following cut off values useful to identify patients at CTEPH risk and subjects with low probability of CTEPH development. TRPG &gt;44mmHg and RV/LV&gt;1.15 showed PPV for CTPEH 12.9 (95% CI: 9.8-16.7) and 13.8 (95% CI: 10.4-18.1), with high NPV of 98.4 (95% CI: 97.1-99.2) and 98.2 (95% CI: 96.8-99.0) respectively. Importantly, in the group of 61 (9.7%) patients with both signs of RV overload present in the acute phase CTEPH during follow-up was diagnosed in 14 patients (23.0%).

Conclusion
TRPG above 44 mmHg recorded at APE diagnosis identifies patients at risk of subsequent CTEPH especially in patients with increased RV/LV ratio.
Association of risk factors on mortality in ST-elevation myocardial infarction patients with diabetes mellitus: a systematic review and meta-analysis of cohort studies
Authors: Ipek R , Szczerba E , Polzin A , Roden M , Kelm M , Schlesinger S , Cramer M 
Published: October 2024

Abstract

Introduction
Despite advancements in medical therapy and revascularization strategies for ST-elevation myocardial infarction (STEMI), diabetes mellitus (DM) remains independently associated with enhanced morbidity and mortality in STEMI. The causes for this are still unknown. Therefore, we aimed to summarise and quantify existing evidence in a systematic review and meta-analysis on the association between risk factors and mortality in STEMI patients with DM from prospective and retrospective cohort studies.

Methods
The systematic literature search was performed on the database of PubMed, Scopus and the Cochrane library up to July 2022. Relevant data were extracted and the risk of bias (RoB) of each study was assessed by using the Quality In Prognosis Studies (QUIPS) tool. All steps were conducted by two researchers independently. Summarised relative risks (SRR) and 95% confidence interval (CI) were estimated using a random effects model. I² was calculated as a measure of inconsistency.

Results
Out of 7601 studies, 18 were included after full-text screening, meeting our inclusion criteria. The RoB was moderate for 6 and high for 12 studies. Results of 7 studies reported on in-hospital mortality, 7 on all-cause-mortality up to 72 months, 3 on both outcomes, and 1 on cardiac death followed-up for 3.5 years. We found an increased risk of mortality for female compared to male sex (SRR [95% CI]: 1.56 [1.20; 2.01], n = 3 studies), age per 5 year increase (SRR [95% CI]: 1.26 [1.23; 1.30], n = 10 studies), admission blood glucose ≥ 7,8 mmol/l (SRR [95% CI]: 2.54 [1.60; 4.04], n = 3 studies), insulin treatment (SRR [95% CI]: 1.72 [1.33; 2.21], n = 2 studies), and dedicated Killip classification III-IV (SRR [95% CI]: 2.97 [2.58; 3.41], n = 3 studies) in STEMI patients with DM. Similar findings were observed for pre-existing comorbidities: prior myocardial infarction (SRR [95% CI]: 1.25 [1.06; 1.47], n = 3 studies), and heart failure (SRR [95% CI]: 2.68 [1.83; 3.93], n = 2 studies). Current smoking (SRR [95% CI]: 0.68 [0.52; 0.88], n = 3 studies) and hypercholesterinemia (SRR [95% CI]: 0.67 [0.57; 0.79], n = 2 studies) showed a reduced risk for mortality, while no association was found for multivessel disease (SRR [95% CI]: 1.03 [0.55; 1.92], n = 3 studies).

Conclusion
We identified specific risk factors of diabetes for mortality after STEMI. Our results confirm higher risk of mortality among STEMI patients with DM, particularly in women, older individuals, those with high admission blood glucose or insulin-dependent diabetes, and cardiac comorbidities. The role of smoking and hypercholesterinemia as a predictor for mortality might be explained by reverse causality and warrants further investigation.
Predicting ECGs masquerading AS STEMI with machine learning
Authors: Tran T H , Fathieh S , Faour A , Long M , Tams G , Al Jazaery A , Gibbs O J , Assad J , Faddy S C , Lo S T H , Juergens C P , French J K 
Published: October 2024

Abstract

Background
Advancements in the management of ST elevation myocardial infarction (STEMI) in the last 15 years include early STEMI identification in the prehospital setting leading to expedited cardiac catheterisation laboratory (CCL) activation or fibrinolytic therapy. We have previously reported of patients who met the Glasgow algorithm (GA) ECG criteria for STEMI; 50% did not actually have an acute STEMI according to the 4th universal definition of MI (4UDMI)1. Identifying such patients could avoid unnecessary emergency CCL activations or inappropriate fibrinolytic administration.

Methods
From June 2010 to October 2021, we identified 2992 patients with ECG transmissions to Liverpool Hospital, Sydney Australia which met GA criteria for STEMI. These were adjudicated according to the 4UDMI for true-positive STEMI. We used univariate and multivariate logistic regression to identify likely patient characteristics that were predictive of true-positive STEMI. We then improved model performance using receiver-operator curve (ROC) with simple random forest machine learning algorithms. Results Among 2994 patients with prehospital ECG transmissions that met GA-criteria, 1553 (51%) were adjudicated as true-positive STEMI, which is comparable to previous findings1. All standard modifiable and non-modifiable risk factors were independently predictive of true-positive STEMI; however, in multivariate logistic regression gender, hypertension and diabetes lost significance. Dyslipidemia and current smoking were positively predictive of true-positive STEMI status (OR = 1.64 and 1.32 respectively), whereas age and previous MI were negatively associated (OR = 0.98 (per year increment) and 0.4). Using these identified predictors in a random forest to predict true-positive STEMI yielded an AUC of 0.65 (Figure 1).

Conclusion
Specific clarification of dyslipidaemia and current smoking status at first medical contact may be the most salient in predicting a true-positive STEMI during prehospital assessment which may assist in avoiding unnecessary emergency CCL activation or inappropriate fibrinolytic administration.ROC of ST elevation STEMI recognition
Satisfactory self-rated health is associated with better clinical outcomes in patients with ST-segment elevation myocardial infarction
Authors: Cao S , Liu J Y , Hu S T , Zhang Y K , Gu T S , Jiang C , Zhang J K , Wu X , Liu X , Liu T , Chen K Y 
Published: October 2024

Abstract

Background
It is well known that health status is a risk factor for cardiovascular diseases, but its specific impact on the prognosis of patients with acute myocardial infarction remains unclear.

Purpose
This study was aimed to investigate the impact of varying health self-evaluation on the long-term outcomes of patients diagnosed with ST-elevation myocardial infarction (STEMI).

Methods
Data for this study were obtained from a retrospective cohort of patients admitted to and discharged from 72 secondary and tertiary hospital from 2010 to 2023. Patients were divided into satisfied group and dissatisfied group based on their responses to a self-assessment health questionnaire. Baseline data of the two groups were compared, and the relationship between health status and major cardiovascular and cerebrovascular adverse events (MACCE) was analyzed using multivariate cox regression. MACCE, defined as the composite endpoint of cardiac death, recurrent myocardial infarction, stroke and revascularization, was the primary endpoint, with each component considered a secondary endpoint.

Results
Among STEMI patients, 25214 patients reported satisfaction with their health, while 375 patients expressed dissatisfaction. The satisfied group exhibited a younger age, fewer females, a higher rate of primary percutaneous coronary intervention (PPCI) and PCI during hospitalization, a better Killips classification and a lower prevalence of concomitant disease such as diabetes, hypertension, chronic kidney disease, and cerebrovascular disease. After a median follow-up of 1626 days, the satisfied group demonstrated significantly lower proportions of total death, cardiac death, recurrent myocardial infarction and stroke compared to dissatisfied group. Multivariate COX regression showed that satisfactory health self-rating was associated with a decreased risk of MACCE (HR 0.813, 95%CI 0.704-0.939, P=0.005), stroke (HR 0.670, 95%CI 0.511-0.878, P=0.003), and recurrent myocardial infarction (HR 0.732, 95%CI 0.548-0.979, P=0.035).

Conclusions
Satisfactory self-rated health is associated with better clinical outcomes in STEMI patients.
Trends in major cardiac events after ST-segment elevation myocardial infarction treated with primary percutaneous coronary intervention from 2003 to 2017: the western Denmark heart registry
Authors: Thrane P , Olesen K K W , Thim T , Gyldenkerne C , Hansen M K , Stoedkilde-Joergensen N , Kristensen S D , Maeng M 
Published: October 2024

Abstract

Background
In Denmark, primary percutaneous coronary intervention (PCI) has been the national reperfusion strategy since 2003. We recently reported a gradual decline in 1-year mortality in patients treated with pPCI-treated STEMI from 2003 to 2017. To elucidate potential causes of this observation, we examined temporal trends in the 1-year risk of major adverse cardiovascular events (MACE).

Purpose
To examine trends in 1-year risks of MACE following STEMI treated with pPCI from 2003 to 2017.

Methods
Using the Western Denmark Heart Registry, we identified STEMI patients undergoing first-time pPCI from 2003 to 2017 and divided the patients into four time periods. The main outcome was 1-year risk of MACE, defined as recurrent myocardial infarction, ischaemic stroke, or cardiovascular death. Cause-specific adjusted hazard ratios (HR) were used to assess temporal trends using the first period (2003-2006) as reference. Further, temporal trends were compared to an age-, sex-, and calendar-year matched general population.

Results
From 2003 to 2017, 18,540 pPCI-treated STEMI patients were identified (median [Q1-Q3] age, 64 [55-74] years); 13,639 men [74%]). Trends in 1-year risk of MACE showed a gradual reduction over time from 13.0% in 2003-2006, 11.8% in 2007-2010, 9.7% in 2011-2014, to 8.7% in 2015-2017 (Figure). The adjusted relative risk reduction was 33% when comparing 2015-2017 with 2003-2006 (adjusted HR 0.67, 95% CI 0.58-0.76). Comparable relative risk reductions were observed for all three individual components of MACE of 33-35%. Compared to the matched general population, the 1-year risk difference in MACE decreased from 11% in 2003-2006 to 7% in 2015-2017.

Conclusions
In a high-income European country with a fully implemented pPCI strategy, 1-year risk of MACE declined by approximately one-third after first-time STEMI between 2003 to 2017. This MACE reduction was substantially larger than observed in the matched general population, i.e., confirming an important reduction in the excess risk associated with STEMI.
Comparison of clinical symptoms and prognosis of non-post-menopausal women to age matched men admitted with ST-elevation myocardial infarctions
Authors: Schmucker J , Fach A , Osteresch R , Ruehle S , Hambrecht R , Wienbergen H 
Published: October 2024

Abstract

Background
Although ST-elevation-myocardial infarctions (STEMI) in women before menopause are relatively uncommon, previous studies have shown that women in general are more likely to present with atypical symptoms and to show higher adverse event rates, which might at least be attributable to the on average higher age of women during the index event. Aim of the present study was therefore to compare in an age-matched cohort of STEMI-patients younger 55 years the likelihood of atypical symptoms between genders and to investigate the impact of female gender on short and long-term-outcome.

Methods
Patients &lt;55 years of age with STEMI admitted between 2006 and 2022 to a German heart center were included in the analysis and women were compared to men with regard to clinical symptoms and outcome. To exclude local bias women of all ages with STEMI from the registry were compared to men in a control group.

Results
Of 12094 STEMI-patients in the total cohort 3343 (28%) were women and 8751 (72%) were men. Women had a mean age of 69.7±13 yrs. compared to 62.2±12 in men. Women with STEMI had a 40% higher chance to present without typical chest pain (no CP, 12.0% vs. 8.5%, p&lt;0.01) and were more likely to present with dyspnea (26.1% vs. 22.7% p&lt;0.01). While rates of late STEMI-presenters were numerically higher in women, this difference failed to reach significance (12.8% vs. 11.9%, p=0.16). When focusing however on the study group (&lt;55 yrs. of age) there was no more age difference (women 47.2±6 yrs. vs. 47.5±6 yrs. in men, p&lt;0.3) and rates of no CP were not different between genders: 5.7%(women) vs. 5.4% (men), p=0.79, nor were rates of dyspnea : 20.0% (women) vs. 18.5% (men), p=0.45. There was even a trend towards lower rates of late STEMI-presenters in women: 8.3% vs. 10.9% in men, p=0.077, although diabetes-rates were higher in women (16.9% vs. 11.8%, p&lt;0.01). Despite similar initial symptom presentations, women showed a marked 60% increase in 30-day- (6.9% vs. 4.3%, p=0.017) and 1-year-mortality (8.7% vs. 5.3%, p&lt;0.01). The disadvantage for women remained, when adjusting mortality rates for confounders (age, diabetes, anterior STEMI, multivessel disease, PCI result) in a Cox regression model (table, upper part). This could be confirmed in a subgroup multivariate analysis excluding patients with no CP or not undergoing emergency PCI (table, lower part).

Conclusions
In STEMI-patients younger 55 years women showed a more than 60% higher short- and long-term-mortality compared to their male peers. This disadvantage, at least with our data, cannot be sufficiently explained by higher rates of delayed STEMI-presentations or absence of typical chest pain. Further studies are needed to identify possible causes for this higher vulnerability of young women to acute myocardial infarctions.Table:Mortality in Women vs. men&lt;55 yrs
Prognostic value of multiparametric cardiac magnetic resonance after revascularized STEMI
Authors: Igual Munoz B , Ferre Valverdu M F V , Miro Palau V M P , Berenguer Jofesa A B J , Plaza Lopez D P L , Melero Ferrer J M F , Vicente Montagud V M B , Domenech Tort D D T , Facila Rubio L F R , Ridocci Soriano F R S , Paya Serrano R P S 
Published: October 2024

Abstract
Despite early revascularization of STEMI through angioplasty, the prognosis following STEMI remains poor for a non-negligible percentage of patients (1). In this setting, multiple imaging parameters have demonstrated their prognostic value. The aim of the present study is to evaluate which of these parameters are the most potent predictors of events following revascularized STEMI.

Methods
A prospective observational study was conducted, including a cohort of revascularized STEMI patients and who underwent cardiac MRI during the first week. The protocol included cardiac functional analysis and with b-SSFP sequences for evaluation of volumes, mass, ejection fraction and also circumferential and radial strain with feature tracking. STIR sequences were used to assess edema and salvaged myocardium, IR-FGE sequences were employed for evaluation of necrosis size and microvascular obstruction. Intra-infarct hemorrhage assessment was performed using T2* mapping sequences as previosly described (2,3,4) . A semi-automatic analysis was conducted, considering as microvascular obstruction segments with hypointensity in the infarct core and as segments with hemorrhage those with a T2* less than 20 ms. The association of imaging parameters with cardiovascular events in the first year following STEMI was studied using ROC curves. Variables with significant association were analyzed using a multivariate logistic regression model.

Results
Ninety-four patients with a mean age of 63 (SD 13) years were included. Nine of them had cardiovascular events in the first year and two of them died. The relative extent of necrosis and microvascular obstruction, minimal radial strain, left ventricular ejection fraction (LVEF) and indexed left ventricular end- systolic volume (ILVESV) showed significant association with cardiovascular events after STEMI. Variables with significant association were entered into a multivariate predictive model, revealing that the extent of microvascular obstruction (OR: 1.9, p=0.02) and the left ventricular end-systolic volume (OR: 1.04, p&lt;0.01) are the only independent predictors of cardiovascular events following STEMI.

Conclusion
Although multiple imaging parameters have shown prognostic value after STEMI, the ILVESV and the extent of microvascular obstruction are the only independent predictors of events following STEMI.Multiparametric cardiac MR in STEMIAREA UNDER ROC CURVE OF CMR PARAMETERS