scholarly journals Index of microcirculatory resistance predicts long term cardiac systolic function in patients with STEMI undergoing primary PCI

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yu Qi ◽  
Rong Gu ◽  
Jiamin Xu ◽  
Lina Kang ◽  
Yihai Liu ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Heart Failure ◽  
Systolic Function ◽  
Anterior Wall ◽  
Left Ventricular Ejection ◽  
Primary Pci ◽  
St Segment ◽  
Index Of Microcirculatory Resistance ◽  
Cardiac Systolic Function

Abstract Background To evaluate the predictive value of the index of microcirculatory resistance (IMR) for long-term cardiac systolic function after primary percutaneous coronary intervention (pPCI) in patients with acute anterior wall ST-segment elevation myocardial infarction (STEMI). Methods A total of 53 acute anterior wall STEMI patients were included and followed up within 1-year. IMR was measured to evaluate the immediate intraoperative reperfusion. IMR > 40 U was defined as the high IMR group and ≤ 40 U was defined as the low IMR group. Left ventricular ejection fraction (LVEF) was measured by echocardiography at 24 h, 1 month, 3 months, and 1 year after PCI to analyze the correlation between IMR and cardiac systolic function. Heart failure was estimated according to classification within one year. Results The ratio of TMPG (TIMI myocardial perfusion grade) 3 (85.7% vs. 52%, p = 0.015) and STR (ST-segment resolution) > 70% (82.1% vs. 48%, p = 0.019) were significantly higher in the low IMR group. The LVEF in the low IMR group was significantly higher than that in the high IMR group at 3 months (43.06 ± 2.63% vs. 40.20 ± 2.67%, p < 0.001) and 1 year (44.16 ± 2.40% vs. 40.13 ± 3.48%, p < 0.001). IMR was negatively correlated with LVEF at 3 months (r = − 0.1014, p = 0.0040) and 1 year (r = − 0.1754, p < 0.0001). Conclusions The IMR showed significant negative correlation with the LVEF value after primary PCI. The high IMR is a strong predictor of heart failure within 1 year after anterior myocardial infarction.

scholarly journals Electrical storm reveals worse prognosis compared to myocardial infarction complicated by ventricular tachyarrhythmias in ICD recipients

2021 ◽  
Author(s):  
Julian Müller ◽  
Michael Behnes ◽  
Tobias Schupp ◽  
Dominik Ellguth ◽  
Gabriel Taton ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Electrical Storm ◽  
Ventricular Tachyarrhythmias ◽  
Ventricular Ejection Fraction ◽  
St Segment ◽  
All Cause Mortality ◽  
Worse Prognosis

AbstractBoth acute myocardial infarction complicated by ventricular tachyarrhythmias (AMI–VTA) and electrical storm (ES) represent life-threatening clinical conditions. However, a direct comparison of both sub-groups regarding prognostic endpoints has never been investigated. All consecutive implantable cardioverter-defibrillator (ICD) recipients were included retrospectively from 2002 to 2016. Patients with ES apart from AMI (ES) were compared to patients with AMI accompanied by ventricular tachyarrhythmias (AMI–VTA). The primary endpoint was all-cause mortality at 3 years, secondary endpoints were in-hospital mortality, rehospitalization rates and major adverse cardiac event (MACE) at 3 years. A total of 198 consecutive ICD recipients were included (AMI–VTA: 56%; ST-segment elevation myocardial infarction (STEMI): 22%; non-ST-segment myocardial infarction (NSTEMI) 78%; ES: 44%). ES patients were older and had higher rates of severely reduced left ventricular ejection fraction (LVEF) < 35%. ES was associated with increased all-cause mortality at 3 years (37% vs. 19%; p = 0.001; hazard ratio [HR] = 2.242; 95% CI 2.291–3.894; p = 0.004) and with increased risk of first cardiac rehospitalization (44% vs. 12%; p = 0.001; HR = 4.694; 95% CI 2.498–8.823; p = 0.001). This worse prognosis of ES compared to AMI–VTA was still evident after multivariable adjustment (long-term all-cause mortality: HR = 2.504; 95% CI 1.093–5.739; p = 0.030; first cardiac rehospitalization: HR = 2.887; 95% CI 1.240–6.720; p = 0.014). In contrast, the rates of MACE (40% vs. 32%; p = 0.326) were comparable in both groups. At long-term follow-up of 3 years, ES was associated with higher rates of all-cause mortality and rehospitalization compared to patients with AMI–VTA.

scholarly journals Long-term clinical prognosis predictors in patients with chronic heart failure and reduced left ventricular ejection fraction

2019 ◽  
Vol 26 (5) ◽  
pp. 33-43 ◽  
Author(s):  
L. G. Voronkov ◽  
К. V. Voitsekhovska ◽  
S. V. Fedkiv ◽  
T. I. Gavrilenko ◽  
V. I. Koval
Keyword(s):  
Myocardial Infarction ◽  
Heart Failure ◽  
Left Atrium ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
C Reactive Protein ◽  
Ventricular Ejection Fraction ◽  
Reactive Protein ◽  
Vasodilator Response

The aim – to identify prognostic factors for the development of adverse cardiovascular events (death and hospitalization) in patients with chronic heart failure (CHF) and left ventricular ejection fraction (LVEF) ≤ 35 % after long-term observation. Materials and methods. 120 stable patients with CHF, aged 18–75, II–IV functional classes according to NYHA, with LVEF ≤ 35 % were examined. Using multiple logistic regression according to the Cox method, we analyzed independent factors that affect the long-term prognosis of patients with heart failure. Results and discussion. During the observation period, out of 120 patients, 61 patients reached combined critical point (CCР). In the univariate regression model, predictors of CCР reaching were NYHA functional class, weigh loss of ≥ 6 % over the past 6 months, systolic and diastolic blood pressure, patient’s history of myocardial infarction, angina pectoris, anemia, number of hospitalizations over the past year and parameters reflecting the functional state of the patient (6-minute walk distance, number of extensions of the lower limb). The risk of CCP developing is significantly higher in patients with lower body mass index, shoulder circumference of a tense and unstressed arm, hip, thickness of the skin-fat fold over biceps and triceps, estimated percentage of body fat. Рredictors CCP reaching are higher levels of uric acid and C-reactive protein. Echocardiographic predictors of CCP onset were LVEF, size of the left atrium, TAPSE score, as well as its ratio to systolic pressure in the pulmonary artery, index of final diastolic pressure in the left ventricle. Also, the risk of CCP reaching is greater at lower values of the flow-dependent vasodilator response. Independent predictors of CCP onset were the circumference of the shoulder of an unstressed arm, the level of C-reactive protein in the blood, and the rate of flow-dependent vasodilator response. When analyzing the indices in 77 patients, who underwent densitometry, it was revealed that the E/E´ index, the index of muscle tissue of the extremities, the index of fat mass, and the ratio of fat mass to growth affect CCP reaching. In a multivariate analysis, taking into account densitometry indices, independent predictors of CCP onset were the size of the left atrium, the index of muscle mass of the extremities, the rate of flow-dependent vasodilator response and the presence of myocardial infarction in anamnesis. Conclusions. Independent predictors of CCP reaching in patients with CHF and LVEF ≤ 35 % are myocardial infarction in anamnesis, lower arm circumference of the arm, limb muscle mass index, flow-dependent vasodilator response, higher levels of C-reactive protein, sizes of the left atrium.

Interaction of ischaemic postconditioning and thrombectomy in patients with ST-elevation myocardial infarction

Heart ◽  
2019 ◽  
Vol 106 (1) ◽  
pp. 24-32 ◽  
Author(s):  
Lars Nepper-Christensen ◽  
Dan Eik Høfsten ◽  
Steffen Helqvist ◽  
Jens Flensted Lassen ◽  
Hans-Henrik Tilsted ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Heart Failure ◽  
Primary Endpoint ◽  
Coronary Intervention ◽  
Primary Pci ◽  
St Segment Elevation ◽  
Segment Elevation Myocardial Infarction ◽  
St Segment ◽  
Significant Difference ◽  
All Cause Mortality

ObjectiveThe Third Danish Study of Optimal Acute Treatment of Patients with ST-segment Elevation Myocardial Infarction – Ischaemic Postconditioning (DANAMI-3-iPOST) did not show improved clinical outcome in patients with ST-segment elevation myocardial infarction (STEMI) treated with ischaemic postconditioning. However, the use of thrombectomy was frequent and thrombectomy may in itself diminish the effect of ischaemic postconditioning. We evaluated the effect of ischaemic postconditioning in patients included in DANAMI-3-iPOST stratified by the use of thrombectomy.MethodsPatients with STEMI were randomised to conventional primary percutaneous coronary intervention (PCI) or ischaemic postconditioning plus primary PCI. The primary endpoint was a combination of all-cause mortality and hospitalisation for heart failure.ResultsFrom March 2011 until February 2014, 1234 patients were included with a median follow-up period of 35 (interquartile range 28 to 42) months. There was a significant interaction between ischaemic postconditioning and thrombectomy on the primary endpoint (p=0.004). In patients not treated with thrombectomy (n=520), the primary endpoint occurred in 33 patients (10%) who underwent ischaemic postconditioning (n=326) and in 35 patients (18%) who underwent conventional treatment (n=194) (adjusted hazard ratio (HR) 0.55 (95%confidence interval (CI) 0.34 to 0.89), p=0.016). In patients treated with thrombectomy (n=714), there was no significant difference between patients treated with ischaemic postconditioning (n=291) and conventional PCI (n=423) on the primary endpoint (adjusted HR 1.18 (95% CI 0.62 to 2.28), p=0.62).ConclusionsIn this post-hoc study of DANAMI-3-iPOST, ischaemic postconditioning, in addition to primary PCI, was associated with reduced risk of all-cause mortality and hospitalisation for heart failure in patients with STEMI not treated with thrombectomy.Trial registration numberNCT01435408.

scholarly journals The diagonal branches and outcomes in patients with anterior ST- elevation myocardial infarction

2019 ◽  
Author(s):  
Shuning Zhang ◽  
Xin Deng ◽  
Wenlong Yang ◽  
Liping Xia ◽  
Kang Yao ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Left Ventricular ◽  
Cox Proportional Hazards ◽  
Left Ventricular Ejection ◽  
Primary Pci ◽  
Ventricular Ejection Fraction ◽  
Timi Grade ◽  
Short And Long Term ◽  
The Impact

Abstract Background: To detect the impact of loss of main diagonal branch (D) flow on cardiac function and clinical outcomes in patients with anterior ST-segment elevation myocardial infarction (STEMI).Methods: Patients with anterior STEMI undergoing primary percutaneous coronary intervention (PCI)at our clinic between October 2015 and October 2018were reviewed. Anterior STEMI due to left anterior descending artery (LAD) occlusion with or without loss of the main D flow (TIMI grade 0-1 or 2-3) was enrolled in the analysis. The short- and long-term incidence of major adverse cardiac events (MACEs, a composite of all-cause death, target vessel revascularization and reinfarction) and left ventricular ejection fraction (LVEF) were analyzed.Results: A total of 392 patients (mean age of 63.9years) with anterior STEMI treated with primary PCI was enrolled in the study. They were divided into two groups, loss (TIMI grade 0-1, n=69) and no loss (TIMI grade2-3, n=323) of D flow, before primary PCI. Compared with the group without loss of D flow, the group with loss of D flow showed a lower LVEF post PCI (41.0% vs. 48.8%, p=0.003). Meanwhile, loss of D flow resulted in the higher in-hospital, one-month, and 18-month incidence of MACEs, especially in all-cause mortality (all p<0.05). Landmark analysis further indicated that the significant differences in 18-month outcomes between the two groups mainly resulted from the differences during the hospitalization. In addition, multivariate Cox proportional hazards analysis found that D flow loss before primary PCI was independent factor predicting short- and long-term outcomes in patients with anterior STEMI.Conclusion: Loss of the main D flow in anterior STEMI patients was independently associated with the higher in-hospital incidences of MACEs and all-cause death as well as the lower LVEF.

scholarly journals Myocardial Work and long-term prognosis in patients after ST-segment elevation acute myocardial infarction

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
A Timoteo ◽  
L Moura Branco ◽  
A Galrinho ◽  
T Mano ◽  
P Rio ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Heart Failure ◽  
Global Longitudinal Strain ◽  
St Segment Elevation ◽  
Segment Elevation Myocardial Infarction ◽  
St Segment ◽  
All Cause Mortality ◽  
Elevation Acute Myocardial Infarction

Abstract Background Left ventricular (LV) global longitudinal strain has demonstrated incremental prognostic value over LV ejection fraction (LVEF) in patients with ST-segment-elevation acute myocardial infarction. However, LV global longitudinal strain (GLS) does not take into consideration the effect of afterload. Myocardial work (MW) by speckle-tracking echocardiography integrates blood pressure measurements (afterload) with LV GLS and it has been recently demonstrated that Global Work Efficiency (GWE) is associated with long-term all-cause mortality. It remains to be demonstrated if MW indices are associated with hard cardiovascular endpoints. The present study aimed to investigate the prognostic value of global LV MW obtained from pressure-strain loops with echocardiography in patients with ST-segment-elevation myocardial infarction. Methods A total of 100 consecutive ST-segment-elevation myocardial infarction patients (mean age, 61±12 years; 75% men) that survived to discharge were retrospectively analysed. LVEF, GLS and all LVMW indices were measured by transthoracic echocardiography before discharge (4.6±2.0 days after admission). All patients had at least a two-year follow-up (mean follow-up of 833±172 days). Outcomes: all-cause mortality, major acute cardiovascular events (a composite of cardiovascular mortality, myocardial infarction, stroke, unplanned cardiovascular admission) and heart failure hospitalization. Results In the two-year follow-up, 6 patients died, there were 17 patients with MACE, and 3 patients were hospitalized with heart failure. We confirmed that for all-cause mortality, GWE showed higher discrimination, compared to GLS (Table 1), with a cut-off of 83% (log-rank &lt;0,001). For MACE, the performance of all methods is suboptimal, with an AUC &lt;0.65 for all variables, except for GLS. For heart failure admission, performance is slightly better, but GLS is still the better parameter to predict this event. Conclusions LVGWE is a better predictor of all-cause mortality compared to GLS, but MW indices failed to demonstrate a prognostic impact in long-term cardiovascular events. Prospective studies are warranted to confirm this finding. FUNDunding Acknowledgement Type of funding sources: None. Table 1

scholarly journals Impact of Remote Ischemic Postconditioning during Primary Percutaneous Coronary Intervention on Left Ventricular Remodeling after Anterior Wall ST-Segment Elevation Myocardial Infarction: A Single-Center Experience

2017 ◽  
Vol 26 (04) ◽  
pp. 241-248 ◽  
Author(s):  
Omar Awad ◽  
Ramy Raymond ◽  
Haytham Badran ◽  
Ahmad Mostafa ◽  
Marwan Saad ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Percutaneous Coronary Intervention ◽  
Primary Percutaneous Coronary Intervention ◽  
Coronary Intervention ◽  
Anterior Wall ◽  
Left Ventricular ◽  
Primary Pci ◽  
St Segment ◽  
Percutaneous Coronary ◽  
Lv Remodeling

AbstractThe role of remote ischemic postconditioning (RIPostC) in improving left ventricular (LV) remodeling after primary percutaneous coronary intervention (PCI) is not well established. To determine the efficacy and safety of RIPostC in improving LV remodeling and cardiovascular outcomes after primary PCI for anterior ST-elevation myocardial infarction (STEMI). Seventy-one patients with anterior STEMI were randomized to primary PCI with RIPostC protocol (n = 36) versus conventional primary PCI (n = 35). Primary outcomes included LV remodeling and LV ejection fraction (LVEF) at 6 month follow-up using transthoracic echocardiography. Secondary outcomes included infarct size, ST-segment resolution (STR) ≥70%, Thrombolysis in Myocardial Infarction (TIMI) flow grade, and myocardial blush grade (MBG). Major adverse cardiac events (MACEs) were also assessed at 6 months. Safety outcome included incidence of acute kidney injury (AKI) postprimary PCI. Sixty patients completed the study. At 6 months, there was no significant decrease in the incidence of LV remodeling with RIPostC group (p = 0.42). Similarly, RIPostC failed to show significant improvement in LVEF. However, STR ≥ 70% after primary PCI was achieved more in the RIPostC group (p = 0.04), with a trend toward less AKI in the RIPostC group (p = 0.08). All other secondary end points, including MACEs at 6 months, were similar in both groups. RIPostC might be associated with better STR after reperfusion as well as less incidence of AKI in patients undergoing primary PCI for anterior wall STEMI, indicating potential benefit in those patients. Whether this role can be translated to better outcomes after primary PCI warrants further investigation.

scholarly journals Gender differences in patients presenting with non-ST segment elevation myocardial infarction in the STAR registry

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Abdulhalim Jamal Kinsara ◽  
Yasser M. Ismail
Keyword(s):  
Risk Factors ◽  
Myocardial Infarction ◽  
Heart Failure ◽  
Epigastric Pain ◽  
Systolic Function ◽  
Female Group ◽  
St Segment Elevation ◽  
Segment Elevation Myocardial Infarction ◽  
St Segment ◽  
The Mean

Abstract Background In most acute coronary artery (ACS) related literature, the female gender constitutes a smaller proportion. This study is based on gender-specific data in the Saudi Acute Myocardial Infarction Registry Program (STARS-1 Program). A prospective multicenter study, conducted with patients diagnosed with ACS in 50 participating hospitals. Results In total, 762 (34.12%) patients were diagnosed with non-ST segment elevation myocardial infarction. Of this group, only 164 (21.52%) were women. The mean age (64.52 ± 12.56 years) was older and the mean body mass index (BMI) was higher (30.58 ± 6.23). A significantly proportion was diabetic or hypertensive; however, a smaller proportion was smoking. Hyperlipidemia was present in 48%. The history of angina/MI/stroke and revascularization was similar, except for renal impairment. The presentation was atypical as only 70% presented with chest pain, and the rest with shortness of breath or epigastric pain. At presentation, the female group were more tachycardiac, had higher blood pressure, and a higher incidence of being in class 11-111 Killip heart failure. Only 32% had a normal systolic function, and the majority had either mild or moderate systolic dysfunction. In particular, the rate of percutaneous coronary intervention was similar. The in-hospital mortality was similar (5%), with more women diagnosed with atrial fibrillation and heart failure at follow-up. Conclusions Women had a higher prevalence of risk factors affecting the presentation and morbidity but not mortality. Improving these risk factors and the lifestyle is a priority to improve the outcome and decrease morbidity.

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