First- Versus Second-Generation Drug-Eluting Stents in Acute Coronary Syndromes (Katowice-Zabrze Registry)

Safety and Efficacy of Modern Stents in Patients with Metabolic Syndrome

The impact of metabolic syndrome (MS) on stent performance and outcomes of patients underwent percutaneous coronary intervention (PCI), including stent implantation, had not yet been fully established. The aim of the present study was to investigate long-term safety and efficacy of 2nd generation DES vs. other stent types in MS patients underwent successful PCI for an acute coronary event. Descriptive epidemiology, angiographic characteristics and one-year clinical outcomes, including major adverse cardiovascular events (MACE) and target lesion revascularization (TLR) procedures were evaluated according to the stent type inserted for 204 patients. The occurrence of TLR (6.62% vs. 9.43%, p = 0.50) and the composite outcomes (20.52% vs. 24.52%, p = 0.54) did not differ significantly between patients having 2nd generation drug eluting stents (DES) or other stent types implanted at the index procedure. It seems that the PCI in acute coronary syndrome (ACS) is similarly efficient regardless of the stent type, suggesting that for the treatment of ACS in MS patients, all stent types show similar results, in terms of TLR or MACE.

Real-Life Outcomes of Coronary Bifurcation Stenting in Acute Myocardial Infarction (Zabrze-Opole Registry)

Percutaneous coronary intervention (PCI) of bifurcation lesions is a technical challenge associated with high risk of adverse events, especially in primary PCI. The aim of the study is to analyze long-term outcomes after PCI for coronary bifurcation in acute myocardial infarction (AMI). The outcome was defined as the rate of major adverse cardiac event related to target lesion failure (MACE-TLF) (death-TLF, nonfatal myocardial infarction-TLF and target lesion revascularization (TLR)) and the rate of stent thrombosis (ST). From 306 patients enrolled to the registry, 113 were diagnosed with AMI. In the long term, AMI was not a risk factor for MACE-TLF. The risk of MACE-TLF was dependent on the culprit lesion, especially in the right coronary artery (RCA) and side branch (SB) with a diameter >3 mm. When PCI was performed in the SB, the inflation pressure in SB remained the single risk factor of poor prognosis. The rate of cumulative ST driven by late ST in AMI was dependent on the inflation pressure in the main branch (MB). In conclusion, PCI of bifurcation culprit lesions should be performed carefully in case of RCA and large SB diameter and attention should be paid to high inflation pressure in the SB. On the contrary, the lower the inflation pressure in the MB, the higher the risk of ST.

Subacute Stent Thrombosis in a Patient With COVID-19 Despite Adherence to Antiplatelets

The coronavirus disease 2019 (COVID-19) creates a significant burden on the cardiovascular system. Moreover, diagnosing coronary artery disease in patients with COVID-19 may be clinically challenging. Herein, we present a case of in-hospital stent thrombosis and thrombotic occlusion of the right coronary artery after initial revascularization and adherence to antiplatelet therapy.

Duration of Dual Antiplatelet Therapy and Late Stent Thrombosis Following Percutaneous Coronary Intervention with Second-Generation Drug-Eluting Stents: A Simple Meta-Analysis of Randomized Controlled Trials

Introduction

The aim of this simple meta-analysis was to systematically compare the occurrence of late and very late stent thrombosis with a short versus a longer duration of dual anti-platelet therapy (DAPT) use following the implantation of second-generation drug-eluting stents (DES).

Methods

Randomized controlled trials that compared short- and long-term DAPT use following percutaneous coronary intervention (PCI) with DES and that reported late (> 30 days but < 1 year) and very late (> 1 year) stent thromboses were searched from the bibliographic database of life sciences and biomedical information, which is also known as MEDLINE, as well as other searched databases including EMBASE, the Cochrane Central and http://www.ClinicalTrials.com. Statistical analysis was carried out using RevMan software [odds ratios (OR) and 95% confidence intervals (CIs) represented the results].

Results

This simple analysis consisted of five randomized controlled trials with a total of 7142 patients. The current results showed no significant difference in late stent thrombosis associated with a shorter or longer duration of DAPT use (OR 0.98, 95% CI 0.30–3.18; P = 0.97, I² = 0%). The result for very late stent thrombosis was also not significantly different (OR 0.30, 95% CI 0.03–2.95; P = 0.31).

Conclusions

This simple analysis showed no impact of DAPT duration on the occurrence of late and very late stent thrombosis. Similar late and very late stent thrombosis rates were observed with 6-month versus 12-month duration of DAPT use following PCI with second-generation DES.

Complete and incomplete revascularization in non-ST segment myocardial infarction with multivessel disease: long-term outcomes of first- and second-generation drug-eluting stents

The therapeutic effects of reperfusion strategies with complete revascularization (CR) or incomplete revascularization (IR) in non-ST segment myocardial infarction (NSTEMI) patients with multivessel disease (MVD) are controversial. In such patients, whether utilization of different generations of drug-eluting stents (DES) for IR or CR affect long-term major adverse cardiovascular events (MACE) is unknown. This study included 702 NSTEMI patients with MVD who received first-generation (1G) or second-generation (2G) DES. In multivariable analysis, chronic kidney disease, chronic total, 1G DES and IR were independent predictors of long-term MACE. In patients receiving 1G DES, no significant differences of MACE were observed between the IR and CR groups (39.1% vs. 36.2%, p = 0.854). However, in patients receiving 2G DES, significantly fewer MACE were observed in the CR group than in the IR group (3.7% vs. 10.2%, p = 0.002). Compared with patients receiving 1G DES for IR, those receiving 2G DES for IR and CR exhibited significantly lower risk of MACE (59% and 83% lower, respectively). CR could not provide clinical benefits over IR in NSTEMI patients with MVD receiving 1G DES. However, in patients receiving 2G DES, compared with IR, CR was associated with a lower risk of long-term MACE, which was mainly caused by low rates of non-TLR and any revascularization.