Comparison of sirolimus- and paclitaxel-eluting stents in patients with moderate renal insufficiency: results from the J-DESsERT trial

Comparison of Limus-Eluting and Paclitaxel-Eluting Stents for Coronary Intervention in Patients with Chronic Kidney Disease

Chronic kidney disease (CKD) patients have worse adverse cardiovascular outcomes after percutaneous coronary intervention (PCI). Clinical outcomes comparing a limus-eluting stent (LES) to a paclitaxel-eluting stent (PES) in patients with CKD remain controversial.A systematic search was conducted using PubMed, EMBASE, and Cochrane Library. A pooled odds ratio (OR) and 95% confidence interval (CI) were used to calculate original data. We conducted heterogeneity, quality assessment, and publication bias analyses.A total of 17 trials involving 10,724 patients were included. No significant differences were found regarding target vessel revascularization, target lesion revascularization (TLR), stent thrombosis (ST), myocardial infarction (MI), all-cause mortality, and major adverse cardiac events (MACE) between first-generation LES implantation and PES implantation. Second-generation LES implantation was associated with lower rates of all-cause mortality (OR, 0.56; 95% CI, 0.39-0.82; P = 0.003), MACE (OR, 0.61; 95% CI, 0.38-0.97; P = 0.04), and ST (OR, 0.45; 95% CI, 0.26-0.77; P = 0.004) compared with PES implantation. In all, the long-term all-cause mortality rate was significantly lower after LES implantation than after PES implantation in patients with CKD (OR, 0.78; 95% CI, 0.66-0.93; P = 0.004). However, second-generation LES implantation resulted in a higher rate of TLR (OR, 2.23; 95% CI, 1.53-3.25; P < 0.001) than PES implantation in dialysis patients.In patients with CKD, first-generation LES and PES implantation had comparable mortality and morbidity. Second-generation LES implantation was superior to PES in reducing long-term mortality, MACE, and ST. However, PES may be more effective than LES in dialysis patients.

Is There Any Significant Difference in Stent Thrombosis Between Sirolimus and Paclitaxel Eluting Stents?: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Several meta-analyses have shown no significant difference in stent thrombosis (ST) between sirolimus eluting stents (SES) and paclitaxel eluting stents (PES). However, other meta-analyses have found SES to be superior to PES. Therefore, to solve this issue, we aim to compare the clinical outcomes between SES and PES during a follow-up period of about 1 or more years.We have searched Medline and EMBASE for randomized controlled trials (RCTs) comparing SES with PES. These RCTs have been carefully analyzed and then different types of ST including ST defined by the Academic Research Consortium (ARC), acute ST, late and very late ST have all been considered as the clinical endpoints in this study. A follow-up period of about 1 year, between 1 and 2 years as well as a longer follow-up period between 1 and 5 years have been considered. Data were retrieved and combined by means of a fixed-effect model because of a lower heterogeneity observed among the results. Odd ratios (OR) and 95% confidence intervals (CIs) were calculated and the pooled analyses were performed with RevMan 5.3 software.Twenty-nine studies from 19 RCTs comprising of 16,724 patients (8115 patients in the SES group and 8609 patients in the PES group) satisfied the inclusion criteria and were included in this meta-analysis. No significant differences in ST have been observed between SES and PES. Results were as follow: definite ST with OR: 0.87; 95% CI: 0.64-1.18, P = 0.36; probable ST with OR:0.72; 95% CI: 0.42-1.21, P = 0.21; definite, probable and/or possible ST with OR: 0.94; 95% CI: 0.75-1.17, P = 0.57; acute ST with OR: 0.99; 95% CI: 0.38-2.56, P = 0.98; subacute ST with OR: 0.72; 95% CI: 0.41-1.25, P = 0.25; early ST with OR: 0.81; 95% CI: 0.53-1.25, P = 0.34; late ST with OR: 0.72; 95% CI: 0.39-1.34, P = 0.30; very late ST with OR: 1.02; 95% CI: 0.72-1.44, P = 0.92; and any ST with OR: 0.86; 95% CI: 0.69-1.07, P = 0.18. Long-term ST between 1 and 5 years with OR: 0.93; 95% CI: 0.71-1.22, P = 0.60 was also not significantly different.No significant difference in ST has been observed between patients treated with either SES or PES. Hence SES and PES can both be considered almost equally effective.