The Role of STEMI Communication Network with Major Adverse Cardiac Event Incidence in STEMI Patients Hospitalized in Saiful Anwar General Hospital Malang

Background : Patient with ST-Elevation Myocardial Infarction (STEMI) requires urgent reperfusion either with fibrinolytic or primary Percutaneous Coronary Intervention (PCI). In Malang, a communication network of STEMI has been developed. It connects Saiful Anwar General Hospital with all of the Public Health Centers (PHC) in Malang Raya to shorten system delay since 2015. Objective : To elucidate Malang’s communication network’s role in decreasing Major Adverse Cardiac Event (MACE) in STEMI patients. Methods : This is a retrospective cohort study. Study sample was taken from medical record. Non-network: 96 patients and 88 network patients. Statistical tests using SPSS version 20.0 software. Results : Bivariate analysis showed network-group has a significantly lower MACE (p=0.001). Door-to-balloon time was also lower in network-group (p=0.026). Multivariate analysis without confounder showed that network-group had significantly shorter door-to-reperfusion time (p=0.032) and lower MACE (p=0.035) compared to non-network group. But multivariate analysis with confounder door-to-balloon and door-to-needle failed to explain lower MACE incidence. Network-group (p=0.005) and reperfusion with primary PCI (p=0.05) significantly decreased MACE incidence. Conclusion : Malang’s STEMI communication network and reperfusion with primary PCI reduced MACE in STEMI patients in Saiful Anwar General Hospital Malang.

Ten‐Year Clinical Outcomes of Biodegradable Versus Durable Polymer New‐Generation Drug‐Eluting Stent in Patients With Coronary Artery Disease With and Without Diabetes Mellitus

Background Extended long‐term follow‐up data of new‐generation drug‐eluting stents in patients with diabetes mellitus is scant. The aim of this study is to assess the 10‐year clinical outcome of new‐generation biodegradable polymer‐based sirolimus‐eluting stents (Yukon Choice PC) versus permanent polymer‐based everolimus‐eluting stents (XIENCE) in patients with and without diabetes mellitus. Methods and Results In a prespecified subgroup analysis, outcomes of patients with or without diabetes mellitus treated with drug‐eluting stents were compared. The primary end point of this analysis was major adverse cardiac event, the composite of death, myocardial infarction, or target lesion revascularization. The analysis includes a total of 1951 patients (560 patients with and 1391 patients without diabetes mellitus) randomized to treatment with Yukon Choice PC (n=1299) or Xience (n=652). Regarding the primary end point, at 10 years patients with diabetes mellitus showed significantly higher major adverse cardiac event rates than patients without diabetes mellitus ( P <0.001; hazard ratio [HR], 1.41; 95% CI, 1.22–1.63). There was no significant difference between patients treated with Yukon Choice PC versus Xience, neither in the subgroup of patients with ( P =0.91; HR, 1.01; 95% CI, 0.79–1.30) nor without diabetes mellitus ( P =0.50; HR, 0.94; 95% CI, 0.79–1.21). Rates of definite/probable stent thrombosis were 2.3% in patients with and 1.9% in patients without diabetes mellitus (HR, 1.27; 95% CI, 0.34–2.60; P =0.52), without significant differences between study devices. Conclusions The clinical outcome of patients with diabetes after percutaneous coronary intervention with different new‐generation drug‐eluting stents is considerably worse than that of patients without diabetes mellitus, with event rates constantly increasing out to 10 years. Registration URL: https://clinicaltrials.gov . Unique Identifier: NCT00598676.

Prospective Validation and Comparative Analysis of Coronary Risk Stratification Strategies Among Emergency Department Patients With Chest Pain

Background Coronary risk stratification is recommended for emergency department patients with chest pain. Many protocols are designed as “rule‐out” binary classification strategies, while others use graded‐risk stratification. The comparative performance of competing approaches at varying levels of risk tolerance has not been widely reported. Methods and Results This is a prospective cohort study of adult patients with chest pain presenting between January 2018 and December 2019 to 13 medical center emergency departments within an integrated healthcare delivery system. Using an electronic clinical decision support interface, we externally validated and assessed the net benefit (at varying risk thresholds) of several coronary risk scores (History, ECG, Age, Risk Factors, and Troponin [HEART] score, HEART pathway, Emergency Department Assessment of Chest Pain Score Accelerated Diagnostic Protocol), troponin‐only strategies (fourth‐generation assay), unstructured physician gestalt, and a novel risk algorithm (RISTRA‐ACS). The primary outcome was 60‐day major adverse cardiac event defined as myocardial infarction, cardiac arrest, cardiogenic shock, coronary revascularization, or all‐cause mortality. There were 13 192 patient encounters included with a 60‐day major adverse cardiac event incidence of 3.7%. RISTRA‐ACS and HEART pathway had the lowest negative likelihood ratios (0.06, 95% CI, 0.03–0.10 and 0.07, 95% CI, 0.04–0.11, respectively) and the greatest net benefit across a range of low‐risk thresholds. RISTRA‐ACS demonstrated the highest discrimination for 60‐day major adverse cardiac event (area under the receiver operating characteristic curve 0.92, 95% CI, 0.91–0.94, P <0.0001). Conclusions RISTRA‐ACS and HEART pathway were the optimal rule‐out approaches, while RISTRA‐ACS was the best‐performing graded‐risk approach. RISTRA‐ACS offers promise as a versatile single approach to emergency department coronary risk stratification. Registration URL: https://www.clinicaltrials.gov ; Unique identifier: NCT03286179.

Comparison between optical frequency domain imaging and intravascular ultrasound in PCI guidance for Biolimus A9 eluting stent implantation

Background It has been reported that intravascular ultrasound (IVUS) guided PCI reduced a risk of major adverse cardiac event compared to conventional angiography guided PCI, while comparison between IVUS-guided and optical frequency domain imaging (OFDI)-guided PCI specifically in long-term clinical outcomes (&gt;1 year) has been unexplored. Purpose We sought to compare imaging surrogates at 8 months and clinical outcomes beyond 1 year after drug-eluting stent implantation between IVUS and OFDI guidance. Methods The MISTIC-1 is a prospective, multi-centre, single-blinded, randomised-controlled, non-inferiority trial comparing OFDI-guided and IVUS-guided PCI using Biolimus A9 eluting Nobori stent. We enrolled patients with stable coronary artery disease who have symptoms or clinically relevant myocardial ischemia. Stent landing zones were selected in the most normal looking sites with largest lumen and without percentage plaque area &gt;50% in IVUS group while without lipidic plaque of &gt;2 quadrants or suggestive thin-cap fibroatheroma in OFDI group. Stent sizing was based on external elastic lamina (EEL) in IVUS group, while by taking 10% or 0.25mm larger than mean lumen diameter at reference sites in OFDI group. Stent optimisation with in-stent minimum lumen area ≥80% of the average lumen area at proximal and distal reference sites was encouraged in both groups. Primary efficacy endpoint is in-segment minimum lumen area (MLA) assessed by OFDI at 8 months. Secondary safety endpoint is a composite of cardiovascular death, target vessel myocardial infarction, or target lesion revascularisation. Based on the assumption that mean in-segment MLA at follow-up was 4.5mm2 with a standard deviation of 2.0mm2 in the control (IVUS) group and a non-inferiority limit of 1.2mm2 for OFDI group, sample size was estimated as 48 cases in each group with 5% type I error and 90% statistical power. Results Since June-2014 and August-2016, we prospectively enrolled 109 patients (mean age 70 years, male 78%) with 126 lesions. Baseline patient and lesion characteristics were well balanced and average nominal size and length of stent used did not differ between OFDI-guided and IVUS-guided PCI (3.0 and 19.1mm vs. 3.1 and 19.3mm, respectively). Post-procedural minimum stent area was 6.24mm2 in OFDI group and 6.72mm2 in IVUS group (p=0.20). At 8-month follow-up, in-segment MLA was 4.56mm2 in OFDI group and 4.13mm2 in IVUS group (P for non-inferiority &lt;0.001). During the follow-up (median 4.5 years [1654 days]), incidence rates of major adverse cardiac event were comparable between the two groups (7.4% in OFDI group and 7.3% in IVUS group, hazard ratio 0.96, 95% CI 0.24–3.83, p=0.95). No definite or probable stent thrombosis were documented in both groups. Conclusion OFDI-guided PCI demonstrated comparable results in achieving satisfactory imaging surrogates as well as long-term clinical outcomes after newer generation DES implantation as compared to IVUS-guided PCI. Funding Acknowledgement Type of funding source: Foundation. Main funding source(s): Suzuken Memorial Foundation

The Roles of Pentraxin-3 to Predict In-Hospital and Three Months Major Adverse Cardiac Event in Acute Myocardial Infarction

Background: Pentraxin-3 (PTX3) was a useful marker for localized vascular inflammation and damage in the cardiovascular system. Recent studies have shown that plasma PTX3 is elevated in patients with myocardial infarction; however, its prognostic value still remains unclear. Aims: This study aimed to investigate the relationship between PTX3 and in-hospital and three months of a major adverse cardiac event (MACE) in acute ST-elevation and non-ST-elevation myocardial infarction patients. Methods: This cohort study conducted from September 1st, 2018 to October 31st, 2019 in Dr. Moewardi Hospital. A 144 patient were observed during hospitalization and 130 survived patient were follow up for three months. The admission PTX3 was compared between the patient with and without MACE. Higher levels of PTX3 were defined as concentrations greater than the optimal cut-off value derived from the Receiver Operating Characteristic (ROC) curve. Results: Among patients, 43.75% was anterior STEMI, 35.42% was inferior STEMI, and 20.38% was NSTEMI with median PTX3 level was 8.16 (0.21-69.35) ng/mL. The in-hospital MACE occurred in 52% of patients, while three months of MACE occurred in 17% patient. Patients with MACE had a higher level of PTX3 compared without MACE (p<0.001) during hospitalization, but not in three months follow up (p=0.408). Multivariate analysis also shown PTX3 was as a predictor of in-hospital MACE (OR 1.127; p=0.001), along with heart rate (OR 1.025; p=0.015). There are different of in-hospital MACE between the patient with high (≥8.247 ng/mL) and low (<8.225 ng/mL) PTX3 level with a hazard ratio (HR) 2.142 (95%CI 1.315-3.487; p=0.002), but the result did not similar after three months follow up (p=0.373). Conclusion: The PTX3 can be used as a predictor of in-hospital MACE but not for three months follow up.

Family History of Atrial Fibrillation and Risk of Cardiovascular Events

Background: To investigate the association between family history of atrial fibrillation (AF) with cardiovascular events (CVEs), major adverse cardiac events (MACE), and cardiovascular mortality. Methods: Multicenter prospective observational cohort study including 1722 nonvalvular AF patients from February 2008 to August 2019 in Italy. Family history of AF was defined as the presence of AF in a first-degree relative: mother, father, sibling, or children. Primary outcome was a composite of CVEs including fatal/nonfatal ischemic stroke and myocardial infarction, and cardiovascular death. Second, we analyzed the association with major adverse cardiac event. Results: Mean age was 74.6±9.4 years; 44% of women. Family history of AF was detected in 368 (21.4%) patients, and 3.5% had ≥2 relatives affected by AF. Age of AF onset progressively decreased from patients without family history of AF, compared with those with single and multiple first-degree affected relatives ( P <0.001). During a mean follow-up of 23.7 months (4606 patients/y) 145 CVEs (3.15%/y), 98 major adverse cardiac event (2.13%/y), and 57 cardiovascular deaths (0.97%/y) occurred. After adjustment for cardiovascular risk factors, family history of AF was associated with a higher risk of CVEs (hazard ratio, 1.524 [95% CI, 1.021–2.274], P =0.039), major adverse cardiac event (hazard ratio, 1.917 [95% CI, 1.207–3.045], P =0.006), and cardiovascular mortality (hazard ratio, 2.008 [95% CI, 1.047–3.851], P =0.036). Subgroup analysis showed that this association was modified by age, sex, and prior ischemic heart disease. Conclusions: In a cohort of elderly patients with a high atherosclerotic burden, family history of AF is evident in >20% of patients and was associated with an increased risk for CVEs and mortality. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01882114.

Association of Operator and Hospital Experience With Procedural Success Rates and Outcomes in Patients Undergoing Percutaneous Coronary Interventions for Chronic Total Occlusions

Background: An inverse relationship has been described between procedural success and outcomes of all major cardiovascular procedures. However, this relationship has not been studied for percutaneous coronary intervention (PCI) of chronic total occlusion (CTO). Methods: We analyzed the data on patients enrolled in Blue Cross Blue Shield of Michigan Cardiovascular Consortium registry in Michigan (January 1, 2010 to March 31, 2018) to evaluate the association of operator and hospital experience with procedural success and outcomes of patients undergoing CTO-PCI. CTO-PCI was defined as intervention of a 100% occluded coronary artery presumed to be ≥3 months old. Results: Among 210 172 patients enrolled in the registry, 7389 (3.5%) CTO-PCIs were attempted with a success rate of 53%. CTO-PCI success increased with operator experience (45% and 65% in the lowest and highest experience tertiles) and was the highest for highly experienced operators at higher experience centers and the lowest for inexperienced operators at low experience hospitals. Multivariable logistic regression models (with spline transformed prior operator and institutional experience) demonstrated a positive relationship between prior operator and site experience and procedural success rates (likelihood ratio test=141.12, df=15, P <0.001) but no relationship between operator and site experience and major adverse cardiac event (likelihood ratio test=19.12, df=15, P =0.208). Conclusions: Operator and hospital CTO-PCI experiences were directly related to procedural success but were not related to major adverse cardiac event among patients undergoing CTO-PCIs. Inexperienced operators at high experience centers had significantly higher success but not major adverse cardiac event rates compared with inexperienced operators at low experience centers. These data suggested that CTO-PCI safety and success could potentially be improved by selective referral of these procedures to experienced operators working at highly experienced centers.

Ten-Year Clinical Outcomes of Late-Acquired Stent Malapposition After Coronary Stent Implantation

Objective: The goal of this study was to determine the impact of late-acquired stent malapposition (LASM) on long-term clinical outcomes in patients treated with coronary stent implantation. Approach and Results: We investigated major adverse cardiac event during 10 years after 6-month intravascular ultrasound examination using our previous studies database. A total of 732 patients treated with bare-metal stent (54 LASM versus 678 non-LASM) and 529 patients treated with first-generation drug-eluting stent (82 LASM versus 447 non-LASM), who did not have clinical event or censoring at the time of follow-up intravascular ultrasound, were included for the present analysis. major adverse cardiac event was defined as the composite of cardiac death, target vessel–related myocardial infarction, target lesion revascularization and stent thrombosis. Multivariable adjustment and inverse probability weight were performed to consider baseline differences. After multivariable adjustment, LASM was related to a greater risk of major adverse cardiac event (hazard ratio, 1.666 [95% CI, 1.041–2.665]; P =0.0333) and very-late stent thrombosis (hazard ratio, 3.529 [95% CI, 1.153–10.798]; P =0.0271) than non-LASM in patients treated with first-generation drug-eluting stent, but not in those treated with bare-metal stent. Results were consistent after inverse probability weight. Among patients with LASM of first-generation drug-eluting stent, no late stent thrombosis occurred in patients who continued to receive dual antiplatelet therapy. Conclusions: The relationship between LASM and major adverse cardiac event might depend on the type of implanted stents during the long-term follow-up, highlighting the clinical significance of polymers and drugs in drug-eluting stent system.