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1.

Objectives

The aim of this study was to determine whether high-risk patients with left main coronary artery disease (LMCAD) and prior cerebrovascular disease (CEVD) preferentially benefit from revascularization by percutaneous coronary intervention (PCI) compared with coronary artery bypass grafting (CABG).

Background

Patients with known CEVD requiring revascularization are often referred to PCI rather than CABG. There is a paucity of data regarding the impact of CEVD in patients with LMCAD undergoing revascularization.

Methods

In the EXCEL (Evaluation of XIENCE Versus Coronary Artery Bypass Surgery for Effectiveness of Left Main Revascularization) trial, patients with LMCAD and low or intermediate SYNTAX (Synergy Between PCI with Taxus and Cardiac Surgery) scores were randomized to PCI with everolimus-eluting stents versus CABG. The effects of prior CEVD, defined as prior stroke, transient ischemic attack, or carotid artery disease, on 30-day and 3-year event rates were assessed.

Results

Prior CEVD was present in 233 of 1,898 patients (12.3%). These patients were older and had higher rates of comorbidities, including hypertension, diabetes, peripheral vascular disease, anemia, chronic kidney disease, and prior PCI, compared with those without prior CEVD. Patients with prior CEVD had higher rates of stroke at 30 days (2.2% vs. 0.8%; p = 0.05) and 3 years (6.4% vs. 2.2%; p = 0.0003) and higher 3-year rates of the primary endpoint of all-cause death, stroke, or myocardial infarction (25.0% vs. 13.6%; p < 0.0001). The relative effects of PCI versus CABG on the 30-day and 3-year rates of stroke (pinteraction = 0.65 and 0.16, respectively) and the 3-year rates of the primary composite endpoint (pinteraction = 0.14) were consistent in patients with and those without prior CEVD.

Conclusions

Patients with LMCAD and prior CEVD compared with those without CEVD have higher rates of stroke and reduced event-free survival after revascularization. Data from the EXCEL trial do not a priori support a preferential role of PCI over CABG in patients with known CEVD.  相似文献   

2.

Background

Heart failure guidelines recommend up-titration of angiotensin-converting enzyme (ACE) inhibitor/angiotensin receptor blockers (ARBs), beta-blockers, and mineralocorticoid receptor antagonists (MRAs) to doses used in randomized clinical trials, but these recommended doses are often not reached. Up-titration may, however, not be necessary in all patients.

Objectives

This study sought to establish the role of blood biomarkers to determine which patients should or should not be up-titrated.

Methods

Clinical outcomes of 2,516 patients with worsening heart failure from the BIOSTAT-CHF (BIOlogy Study to Tailored Treatment in Chronic Heart Failure) were compared between 3 theoretical treatment scenarios: scenario A, in which all patients are up-titrated to >50% of recommended doses; scenario B, in which patients are up-titrated according to a biomarker-based treatment selection model; and scenario C, in which no patient is up-titrated to >50% of recommended doses. The study conducted multivariable Cox regression using 161 biomarkers and their interaction with treatment, weighted for treatment-indication bias to estimate the expected number of deaths or heart failure hospitalizations at 24 months for all 3 scenarios.

Results

Estimated death or hospitalization rates in 1,802 patients with available (bio)markers were 16%, 16%, and 26%, respectively, in the ACE inhibitor/ARB up-titration scenarios A, B, and C. Similar rates for beta-blocker and MRA up-titration scenarios A, B, and C were 23%, 19%, and 24%, and 12%, 11%, and 24%, respectively. If up-titration was successful in all patients, an estimated 9.8, 1.3, and 12.3 events per 100 treated patients could be prevented at 24 months by ACE inhibitor/ARB, beta-blocker, and MRA therapy, respectively. Similar numbers were 9.9, 4.7, and 13.1 if up-titration treatment decision was based on a biomarker-based treatment selection model.

Conclusions

Up-titrating patients with heart failure based on biomarker values might have resulted in fewer deaths or hospitalizations compared with a hypothetical scenario in which all patients were successfully up-titrated.  相似文献   

3.

Objectives

This study sought to compare the per-patient diagnostic performance of coronary computed tomography angiography (CTA)-derived fractional flow reserve (FFRCT) with that of single-photon emission computed tomography (SPECT), using a fractional flow reserve (FFR) value of ≤0.80 as the reference for diagnosing at least 1 hemodynamically significant stenosis in a head-to-head comparison of patients with intermediate coronary stenosis as determined by coronary CTA.

Background

No previous study has prospectively compared the diagnostic performance of FFRCT and myocardial perfusion imaging by SPECT in symptomatic patients with intermediate range coronary artery disease (CAD).

Methods

This study was conducted at a single-center as a prospective study in patients with stable angina pectoris (N = 143). FFRCT and SPECT analyses were performed by core laboratories and were blinded for the personnel responsible for downstream patient management. FFRCT ≤0.80 distally in at least 1 coronary artery with a diameter ≥2 mm classified patients as having ischemia. Ischemia by SPECT was encountered if a reversible perfusion defect (summed difference score ≥2) or transitory ischemic dilation of the left ventricle (ratio >1.19) were found.

Results

The per-patient diagnostic performance for identifying ischemia (95% confidence interval [CI]), FFRCT versus SPECT, were sensitivity of 91% (95% CI: 81% to 97%) versus 41% (95% CI: 29% to 55%; p < 0.001); specificity of 55% (95% CI: 44% to 66%) versus 86% (95% CI: 77% to 93%; p < 0.001); negative predictive value of 90% (95% CI: 82% to 98%) versus 68% (95% CI: 59% to 77%; p = 0.001); positive predictive value of 58% (95% CI: 48% to 68%) versus 67% (95% CI: 51% to 82%; p = NS); and accuracy of 70% (95% CI: 62% to 77%) versus 68% (95% CI: 60% to 75%; p = NS) respectively.

Conclusions

In patients with stable chest pain and CAD as determined by coronary CTA, the overall diagnostic accuracy levels of FFRCT and SPECT were identical in assessing hemodynamically significant stenosis. However, FFRCT demonstrated a significantly higher diagnostic sensitivity than SPECT.  相似文献   

4.
5.

Objectives

This study sought to externally validate prediction models for the presence of obstructive coronary artery disease (CAD).

Background

A better assessment of the probability of CAD may improve the identification of patients who benefit from noninvasive testing.

Methods

Stable chest pain patients from the PROMISE (Prospective Multicenter Imaging Study for Evaluation of Chest Pain) trial with computed tomography angiography (CTA) or invasive coronary angiography (ICA) were included. The authors assumed that patients with CTA showing 0% stenosis and a coronary artery calcium (CAC) score of 0 were free of obstructive CAD (≥50% stenosis) on ICA, and they multiply imputed missing ICA results based on clinical variables and CTA results. Predicted CAD probabilities were calculated using published coefficients for 3 models: basic model (age, sex, chest pain type), clinical model (basic model + diabetes, hypertension, dyslipidemia, and smoking), and clinical + CAC score model. The authors assessed discrimination and calibration, and compared published effects with observed predictor effects.

Results

In 3,468 patients (1,805 women; mean 60 years of age; 779 [23%] with obstructive CAD on CTA), the models demonstrated moderate-good discrimination, with C-statistics of 0.69 (95% confidence interval [CI]: 0.67 to 0.72), 0.72 (95% CI: 0.69 to 0.74), and 0.86 (95% CI: 0.85 to 0.88) for the basic, clinical, and clinical + CAC score models, respectively. Calibration was satisfactory although typical chest pain and diabetes were less predictive and CAC score was more predictive than was suggested by the models. Among the 31% of patients for whom the clinical model predicted a low (≤10%) probability of CAD, actual prevalence was 7%; among the 48% for whom the clinical + CAC score model predicted a low probability the observed prevalence was 2%. In 2 sensitivity analyses excluding imputed data, similar results were obtained using CTA as the outcome, whereas in those who underwent ICA the models significantly underestimated CAD probability.

Conclusions

Existing clinical prediction models can identify patients with a low probability of obstructive CAD. Obstructive CAD on ICA was imputed for 61% of patients; hence, further validation is necessary.  相似文献   

6.
7.

Objectives

The aim of this study was to characterize post-procedural intravascular ultrasound (IVUS) findings in the ABSORB Japan trial, specifically stratified by the size of target coronary arteries.

Background

Despite overall noninferiority confirmed in recent randomized trials comparing bioresorbable vascular scaffolds (BVS) (Absorb BVS) and cobalt-chromium everolimus-eluting metallic stents (CoCr-EES), higher event rates of Absorb BVS have been reported with suboptimal deployment, especially in small coronary arteries.

Methods

In the ABSORB Japan trial, 150 patients (2:1 randomization) were scheduled in the IVUS cohort. Small vessel was defined as mean reference lumen diameter <2.75 mm. Tapered-vessel lesions were defined as tapering index (proximal/distal reference lumen diameter) ≥1.2.

Results

Overall, IVUS revealed that the Absorb BVS arm had smaller device expansion than the CoCr-EES arm did, which was particularly prominent in small- and tapered-vessel lesions. Higher tapering index was also associated with higher rates of incomplete strut apposition in Absorb BVS, but not in CoCr-EES. With respect to procedural techniques, small-vessel lesions were treated more frequently with noncompliant balloons at post-dilatation but using significantly lower pressure in the Absorb BVS arm. In contrast, tapered-vessel lesions were post-dilated at equivalent pressure but with significantly smaller balloon catheters in the Absorb BVS arm, compared with the CoCr-EES arm.

Conclusions

The significantly smaller device expansion especially in small vessels may account for the poorer outcomes of Absorb BVS in this lesion type. Appropriate optimization strategy, possibly different between polymeric and metallic devices, needs to be established for bioresorbable scaffold technology. (AVJ-301 Clinical Trial: A Clinical Evaluation of AVJ-301 Absorb? BVS) in Japanese Population [ABSORB JAPAN]; NCT01844284)  相似文献   

8.

Objectives

The aim of this study was to determine whether coronary artery calcium (CAC) progression was associated with coronary plaque progression on coronary computed tomographic angiography.

Background

CAC progression and coronary plaque characteristics are associated with incident coronary heart disease. However, natural history of coronary atherosclerosis has not been well described to date, and the understanding of the association between CAC progression and coronary plaque subtypes such as noncalcified plaque progression remains unclear.

Methods

Consecutive patients who were referred to our clinic for evaluation and had serial coronary computed tomography angiography scans performed were included in the study. Coronary artery plaque (total, fibrous, fibrous-fatty, low-attenuation, densely calcified) volumes were calculated using semiautomated plaque analysis software.

Results

A total of 211 patients (61.3 ± 12.7 years of age, 75.4% men) were included in the analysis. The mean interval between baseline and follow-up scans was 3.3 ± 1.7 years. CAC progression was associated with a significant linear increase in all types of coronary plaque and no plaque progression was observed in subjects without CAC progression. In multivariate analysis, annualized and normalized total plaque (β = 0.38; p < 0.001), noncalcified plaque (β = 0.35; p = 0.001), fibrous plaque (β = 0.56; p < 0.001), and calcified plaque (β = 0.63; p = 0.001) volume progression, but not fibrous-fatty (β = 0.03; p = 0.28) or low-attenuation plaque (β = 0.11; p = 0.1) progression, were independently associated with CAC progression. Plaque progression did not differ between the sexes. A significantly increased total and calcified plaque progression was observed in statin users.

Conclusions

In a clinical practice setting, progression of CAC was significantly associated with an increase in both calcified and noncalcified plaque volume, except fibrous-fatty and low-attenuation plaque. Serial CAC measurements may be helpful in determining the need for intensification of preventive treatment.  相似文献   

9.
Revascularization in stable ischemic heart disease (SIHD) is indicated in patients on optimal medical therapy with angina and/or demonstrable ischemia and a significant stenosis in one or more epicardial coronary arteries. Angiography alone, however, cannot accurately determine the hemodynamic significance of coronary lesions, particularly those of intermediate stenosis severity. A lesion may appear significant on coronary angiogram but may not have functional significance. Percutaneous coronary intervention (PCI) of functionally insignificant coronary artery lesions may have serious consequences; therefore, judicious decision-making in the cardiac catheterization laboratory is indicated. For this reason, it is becoming increasingly important to show that a stenosis is capable to induce myocardial ischemia prior to intervention. Fractional flow reserve (FFR) has emerged as a useful tool for this purpose. In this review, we will briefly discuss the principle of FFR, current evidence and rationale supporting its use, and comparison with other modalities.  相似文献   

10.
11.

Objectives

This study aimed to investigate the 5-year clinical follow-up of the HYBRID (Hybrid Revascularization for Multivessel Coronary Artery Disease) trial.

Background

The HYBRID trial, the only randomized study involving thorough analysis of outcome after the 2 procedures, suggested that hybrid coronary revascularization (HCR) is feasible in selected patients with multivessel coronary disease referred for conventional coronary artery bypass grafting (CABG). There are currently no long-term outcome data from randomized trials in this setting.

Methods

A total of 200 patients with multivessel coronary disease referred for conventional surgical revascularization were randomly assigned to undergo HCR or CABG. The primary endpoint was the occurrence of all-cause mortality at 5 years.

Results

Nine patients (4 in HCR and 5 in CABG group) were lost to the 5-year follow-up. Finally, 191 patients (94 in HCR and 97 in CABG group) formed the basis of this study. The groups were well balanced in terms of pre-procedural characteristics. All-cause mortality at 5-year follow-up was similar in the 2 groups (6.4% for HCR vs. 9.2% for CABG; p = 0.69). The rates of myocardial infarction (4.3% vs. 7.2%; p = 0.30), repeat revascularization (37.2% vs. 45.4%; p = 0.38), stroke (2.1% vs. 4.1%; p = 0.35), and major adverse cardiac and cerebrovascular events (45.2% vs. 53.4%; p = 0.39) were also similar in the 2 groups.

Conclusions

HCR has similar 5-year all-cause mortality when compared with conventional coronary bypass grafting (Safety and Efficacy Study of Hybrid Revascularization in Multivessel Coronary Artery Disease; NCT01035567)  相似文献   

12.

Objectives

The authors sought to describe the incidence, determinants, and outcome of elective coronary revascularization (ECR) in patients with stable coronary artery disease (CAD).

Background

Observational data are lacking regarding the practice of ECR in patients with stable CAD receiving modern secondary prevention.

Methods

The authors analyzed coronary revascularization procedures performed during a 5-year follow-up in 4,094 stable CAD outpatients included in the prospective multicenter CORONOR (Suivi d'une cohorte de patients COROnariens stables en région NORd-Pas-de-Calais) registry.

Results

Secondary prevention medications were widely prescribed at inclusion (antiplatelet agents 96.4%, statins 92.2%, renin-angiotensin system antagonists 81.8%). A total of 481 patients underwent ≥1 coronary revascularization procedure (5-year cumulative incidences of 3.6% [0.7% per year] for acute revascularizations and 8.9% [1.8% per year] for ECR); there were 677 deaths during the same period. Seven baseline variables were independently associated with ECR: prior coronary stent implantation (p < 0.0001), absence of prior myocardial infarction (p < 0.0001), higher low-density lipoprotein cholesterol (p < 0.0001), lower age (p < 0.0001), multivessel CAD (p = 0.003), diabetes mellitus (p = 0.005), and absence of treatment with renin-angiotensin system antagonists (p = 0.020). Main indications for ECR were angina associated with a positive stress test (31%), silent ischemia (31%), and angina alone (25%). The use of ECR had no impact on the subsequent risk of death, myocardial infarction, or ischemic stroke (hazard ratio: 1.04; 95% confidence interval: 0.76 to 1.41).

Conclusions

These real-life data show that ECR is performed at a rate of 1.8% per year in stable CAD patients widely treated by secondary medical prevention. ECR procedures performed in patients without noninvasive stress tests are not rare. Having an ECR was not associated with the risk of ischemic adverse events.  相似文献   

13.
《高血压杂志》2004,12(1):92
研究培哚普利(P)治疗稳定性冠心病人的效果,该研究收入12218名冠心病人,无心衰,无严重高血压,病人相对低危,不少病人无症状,随机分成8mg/d P或安慰剂。P是在用抗血小板治疗(阿司匹灵),β阻滞剂与降脂治疗的基础上使用的。随访4.2年,终点是心血管病死亡,心梗或心脏骤停。观察到用P组为8%,对照组为10%。相对危险比减少20%。无论有无糖尿病、高血压,既往有无MI,结果都证明P有疗效。  相似文献   

14.

Objectives

This study sought to investigate the effect of different body mass index (BMI) categories on clinical outcomes in female patients treated with percutaneous coronary intervention (PCI) and drug-eluting stents.

Background

Patients with higher BMI might, paradoxically, have better long-term clinical outcomes after acute coronary syndrome treated with PCI.

Methods

We pooled patient-level data for female participants from 26 randomized trials on PCI with drug-eluting stents. Patients were stratified into underweight (BMI, <18.5), normoweight (BMI, 18.5 to 24.9), overweight (BMI, 25 to 29.9), obese (BMI, 30 to 34.9), or morbidly obese (BMI, ≥35). The primary endpoint was major adverse cardiac events, a composite of death, myocardial infarction, or target lesion revascularization at 3 years.

Results

Among 11,557 female patients included in the pooled database, 9,420 were treated with a drug-eluting stent and had BMI data available. Patients with higher BMI were significantly younger and with more cardiovascular risk factors. Only 139 patients were underweight and had significantly higher adjusted rates of cardiac mortality and all-cause mortality than the rest of the population (hazard ratio: 2.20 [1.31 to 3.71] compared with normoweight). There was a significantly lower frequency of unadjusted 3-year all-cause mortality in overweight, obese, and severely obese patients compared with normoweight. However, following multivariable analysis, a trend toward increased risk of death in severely obese patients was observed, describing an inverse “J”-shaped relation between BMI and 3-year mortality. Conversely, the relationship between BMI and other outcomes, such as major adverse cardiac events, was flat for normoweight and higher BMI.

Conclusions

The risk of 3-year adjusted cardiac events did not differ across BMI groups, whereas the risk of all-cause mortality compared with normoweight was significantly higher in underweight patients and lower in overweight patients with a trend toward increased risk in the severely obese population.  相似文献   

15.

Objectives

The authors sought to determine the extent to which the site of the left main coronary artery (LM) lesion (distal bifurcation versus ostial/shaft) influences the outcomes of revascularization with percutaneous coronary intervention (PCI) versus coronary artery bypass grafting (CABG).

Background

Among 1,905 patients with LM disease and site-assessed SYNTAX scores of <32 randomized in the EXCEL (Evaluation of XIENCE Versus Coronary Artery Bypass Surgery for Effectiveness of Left Main Revascularization) trial, revascularization with PCI and CABG resulted in similar rates of the composite primary endpoint of death, myocardial infarction (MI), or stroke at 3 years.

Methods

Outcomes from the randomized EXCEL trial were analyzed according to the presence of angiographic core laboratory–determined diameter stenosis ≥50% involving the distal LM bifurcation (n = 1,559; 84.2%) versus disease isolated to the LM ostium or shaft (n = 293; 15.8%).

Results

At 3 years, there were no significant differences between PCI and CABG for the primary composite endpoint of death, MI, or stroke for treatment of both distal LM bifurcation disease (15.6% vs. 14.9%, odds ratio [OR]: 1.08, 95% confidence interval [CI]: 0.81 to 1.42; p = 0.61) and isolated LM ostial/shaft disease (12.4% vs. 13.5%, OR: 0.90, 95% CI: 0.45 to 1.81; p = 0.77) (pinteraction = 0.65). However, at 3 years, ischemia-driven revascularization occurred more frequently after PCI than CABG in patients with LM distal bifurcation disease (13.0% vs. 7.2%, OR: 2.00, 95% CI: 1.41 to 2.85; p = 0.0001), but were not significantly different in patients with disease only at the LM ostium or shaft (9.7% vs. 8.4%, OR: 1.18, 95% CI: 0.52 to 2.69; p = 0.68) (pinteraction = 0.25).

Conclusions

In the EXCEL trial, PCI and CABG resulted in comparable rates of death, MI, or stroke at 3 years for treatment of LM disease, including those with distal LM bifurcation disease. Repeat revascularization rates during follow-up after PCI compared with CABG were greater for lesions in the distal LM bifurcation but were similar for disease isolated to the LM ostium or shaft.  相似文献   

16.

Objectives

This study sought to prospectively assess the impact of routine invasive physiology at the time of angiography on reclassification of therapeutic management of multivessel disease (MVD) patients, and to assess how implementation of instantaneous wave-free ratio (iFR) alters the process.

Background

Routine invasive physiology in intermediate coronary lesions at the time of diagnostic angiography, primarily in patients with single-vessel disease and using fractional flow reserve (FFR), reclassifies coronary revascularization management in 26% to 44% of patients. The role of invasive physiology in patients with MVD is unclear.

Methods

In 18 centers, 484 patients undergoing diagnostic angiography disclosing MVD with lesions >40% by visual assessment were included. Investigators were asked to prospectively define their initial management strategy based on angiography and clinical information. Invasive physiology (FFR or iFR driven) was then performed and final strategy defined. Initial and final vessel, patient, procedural, and overall management were described. Reclassification was defined as the difference between initial and final strategy.

Results

The majority of patients were clinically stable (82.2%). Two- and 3-vessel disease was present in 73.3% and 26.7% of patients, respectively. Lesions investigated were “intermediate” with median percent stenosis, median FFR, and median iFR at 60% (interquartile range [IQR]: 50% to 70%), 0.84 (IQR: 0.78 to 0.90), and 0.92 (IQR: 0.85 to 0.96), respectively. Vessel management was reclassified by physiology in 30.0% (249 of 828) of vessels. Patient and overall management were reclassified in 26.9% (130 of 484) and 45.7% (211 of 484) of patients, respectively. Reclassification rates were high irrespective of initial management (optimal medical therapy, percutaneous coronary intervention, or coronary artery bypass grafting), and performance and results of pre-procedural noninvasive tests. Reclassification of overall management in particular increased with the number of vessels investigated (1 vessel: 37.3%; 2 vessels: 45.0%; 3 vessels: 66.7%; p = 0.002). Incorporating iFR in the decision process was associated with investigation of more vessels (p = 0.04) and higher reclassification (p = 0.0001).

Conclusions

In patients with MVD and intermediate coronary lesions, invasive physiology at time of angiography reclassifies revascularization strategy in a large proportion of cases (26.9%) and investigation of more vessels is associated with higher reclassification rates.  相似文献   

17.

Objectives

The aim of this study was to compare manual versus mechanical compression of the radial artery after coronary angiography via transradial access regarding radial artery occlusion (RAO), access-site bleeding complications, and duration of hemostasis.

Background

Hemostasis of the radial artery after sheath removal can be achieved either by manual compression at the puncture site or by using a mechanical hemostasis device. Because mechanical compression exerts a more stable, continuous pressure on the artery, it could be hypothesized that it is more effective compared with manual compression regarding hemostasis time, bleeding, and RAO risks.

Methods

A total of 589 patients undergoing diagnostic coronary angiography by transradial access with a 5-F sheath were randomized in a 1:1 ratio to receive either manual or mechanical patent hemostasis of the radial artery. Radial artery patency was evaluated by color duplex ultrasonography 24 h after the procedure. The primary endpoint was early RAO at 24 h. Secondary endpoints included access-site bleeding complications and duration of hemostasis.

Results

Thirty-six (12%) early RAOs occurred in the manual group, and 24 (8%) occurred in the mechanical group (p = 0.176). There were no significant differences between the 2 groups regarding access-site bleeding complications (hematoma, 52 [17%] vs. 50 [18%]; p = 0.749; bleedings, 8 [3%] vs. 9 [3%]; p = 1.000). Duration of hemostasis was significantly shorter in the manual group (22 ± 34 min vs. 119 ± 72 min with mechanical compression; p < 0.001).

Conclusions

Manual and mechanical compression resulted in similar rates of early RAO, although the total duration of hemostasis was significantly shorter in the manual group.  相似文献   

18.

Background

Limited data are available on the relative performances between different types of drug-eluting stents (DES) for obstructive left main coronary artery disease (LMCAD).

Objectives

This study sought to compare effectiveness and safety profiles of various second-generation DES for LMCAD in real-world clinical practice.

Methods

Among 4,470 patients in 3, multicenter, prospective registries (IRIS-DES [Interventional Cardiology Research Incorporation Society-Drug-Eluting Stents] registry, the IRIS-MAIN [Interventional Cardiology Research Incorporation Society-Left MAIN Revascularization] registry, and the PRECOMBAT [PREmier of Randomized COMparison of Bypass Surgery versus AngioplasTy Using Drug-Eluting Stent in Patients with Left Main Coronary Artery Disease] study) treated between July 2007 and July 2015, the authors identified 2,692 patients with significant LMCAD who received second-generation DES; 1,254 with cobalt-chromium everolimus-eluting stents (CoCr-EES), 232 with biodegradable polymer biolimus-eluting stents (BP-BES), 616 with platinum-chromium EES (PtCr-EES), and 590 with Resolute zotarolimus-eluting stent (Re-ZES). The primary outcome was target-vessel failure.

Results

The observed 3-year rates of target-vessel failure were not significantly different for the different types of DES (16.7% for the CoCr-EES, 13.2% for the BP-BES, 18.7% for the PtCr-EES, and 14.7% for the Re-ZES; p = 0.15). In multiple treatment propensity score analysis, the adjusted hazard ratios (HRs) for target-vessel failure were similar in between-group comparisons of the different DES, except for the PtCr-EES versus the BP-BES (reference; HR: 1.60; 95% confidence interval: 1.01 to 2.54; p = 0.046). There were no significant differences in risk of composite of all-cause death, any myocardial infarction, or any revascularization and its individual components according to the different types of DES. Although the 3-year incidence of stent thrombosis was considerably low (≤1.0%) for all types of DES, between-group differences were observed, generally favoring the EES platforms.

Conclusions

In this pooled analysis of 3 prospective registries involving unrestricted use of various second-generation DES for LMCAD, we found no significant between-group differences in 3-year risk of target-vessel failure, except for a higher risk of primary outcome with PtCr-EES compared to BP-BES. (Evaluation of the First, Second, and New Drug-Eluting Stents in Routine Clinical Practice [IRIS-DES]; NCT01186133)  相似文献   

19.

Objectives

The aim of this study was to further evaluate clinical outcomes in patients with and without PCS.

Background

Prior cardiac surgery (PCS) is associated with increased surgical risk and post-operative complications following surgical aortic valve replacement (SAVR), but whether this risk is similar in transcatheter aortic valve replacement (TAVR) is unclear.

Methods

In the PARTNER 2A (Placement of Aortic Transcatheter Valve) trial, 2,032 patients with severe aortic stenosis at intermediate surgical risk were randomized to TAVR with the SAPIEN XT valve or SAVR. Adverse clinical outcomes at 30 days and 2 years were compared using Kaplan-Meier event rates and multivariate Cox proportional hazards regression models. The primary endpoint of the PARTNER 2 trial was all-cause death and disabling stroke.

Results

Five hundred nine patients (25.1%) had PCS, mostly (98.2%) coronary artery bypass grafting. There were no significant differences between TAVR and SAVR in patients with or without PCS in the rates of the primary endpoint at 30 days or 2 years. Nevertheless, an interaction was observed between PCS and treatment arm; whereas no-PCS patients treated with TAVR had higher rates of 30-day major vascular complications than patients treated with SAVR (adjusted hazard ratio: 2.66; 95% confidence interval: 1.68 to 4.22), the opposite was true for patients with PCS (adjusted hazard ratio: 0.27; 95% confidence interval: 0.11 to 0.66) (pinteraction <0.0001). A similar interaction was observed for life-threatening or disabling bleeding.

Conclusions

In the PARTNER 2A trial of intermediate-risk patients with severe aortic stenosis undergoing SAVR versus TAVR, the relative risk for 2-year adverse clinical outcomes was similar between TAVR and SAVR in patients with or without PCS.  相似文献   

20.
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