Objectives The purpose of this study was to determine the consistency of the effects of radial artery access in patients with ST-segment elevation myocardial infarction (STEMI) and in those with ...non–ST-segment elevation acute coronary syndrome (NSTEACS). Background The safety associated with radial access may translate into mortality benefit in higher-risk patients, such as those with STEMI. Methods We compared efficacy and bleeding outcomes in patients randomized to radial versus femoral access in RIVAL (RadIal Vs femorAL access for coronary intervention trial) (N = 7,021) separately in those with STEMI (n = 1,958) and NSTEACS (n = 5,063). Interaction tests between access site and acute coronary syndrome type were performed. Results Baseline characteristics were well matched between radial and femoral groups. There were significant interactions for the primary outcome of death/myocardial infarction/stroke/non–coronary artery bypass graft–related major bleeding (p = 0.025), the secondary outcome of death/myocardial infarction/stroke (p = 0.011) and mortality (p = 0.001). In STEMI patients, radial access reduced the primary outcome compared with femoral access (3.1% vs. 5.2%; hazard ratio HR: 0.60; p = 0.026). For NSTEACS, the rates were 3.8% and 3.5%, respectively (p = 0.49). In STEMI patients, death/myocardial infarction/stroke were also reduced with radial access (2.7% vs. 4.6%; HR 0.59; p = 0.031), as was all-cause mortality (1.3% vs. 3.2%; HR: 0.39; p = 0.006), with no difference in NSTEACS patients. Operator radial experience was greater in STEMI versus NSTEACS patients (400 vs. 326 cases/year, p < 0.0001). In primary PCI, mortality was reduced with radial access (1.4% vs. 3.1%; HR: 0.46; p = 0.041). Conclusions In patients with STEMI, radial artery access reduced the primary outcome and mortality. No such benefit was observed in patients with NSTEACS. The radial approach may be preferred in STEMI patients when the operator has considerable radial experience. (A Trial of Trans-radial Versus Trans-femoral Percutaneous Coronary Intervention (PCI) Access Site Approach in Patients With Unstable Angina or Myocardial Infarction Managed With an Invasive Strategy RIVAL; NCT01014273 )
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Summary Background Small trials have suggested that radial access for percutaneous coronary intervention (PCI) reduces vascular complications and bleeding compared with femoral access. We aimed to ...assess whether radial access was superior to femoral access in patients with acute coronary syndromes (ACS) who were undergoing coronary angiography with possible intervention. Methods The RadIal Vs femorAL access for coronary intervention (RIVAL) trial was a randomised, parallel group, multicentre trial. Patients with ACS were randomly assigned (1:1) by a 24 h computerised central automated voice response system to radial or femoral artery access. The primary outcome was a composite of death, myocardial infarction, stroke, or non-coronary artery bypass graft (non-CABG)-related major bleeding at 30 days. Key secondary outcomes were death, myocardial infarction, or stroke; and non-CABG-related major bleeding at 30 days. A masked central committee adjudicated the primary outcome, components of the primary outcome, and stent thrombosis. All other outcomes were as reported by the investigators. Patients and investigators were not masked to treatment allocation. Analyses were by intention to treat. This trial is registered with ClinicalTrials.gov , NCT01014273. Findings Between June 6, 2006, and Nov 3, 2010, 7021 patients were enrolled from 158 hospitals in 32 countries. 3507 patients were randomly assigned to radial access and 3514 to femoral access. The primary outcome occurred in 128 (3·7%) of 3507 patients in the radial access group compared with 139 (4·0%) of 3514 in the femoral access group (hazard ratio HR 0·92, 95% CI 0·72–1·17; p=0·50). Of the six prespecified subgroups, there was a significant interaction for the primary outcome with benefit for radial access in highest tertile volume radial centres (HR 0·49, 95% CI 0·28–0·87; p=0·015) and in patients with ST-segment elevation myocardial infarction (0·60, 0·38–0·94; p=0·026). The rate of death, myocardial infarction, or stroke at 30 days was 112 (3·2%) of 3507 patients in the radial group compared with 114 (3·2%) of 3514 in the femoral group (HR 0·98, 95% CI 0·76–1·28; p=0·90). The rate of non-CABG-related major bleeding at 30 days was 24 (0·7%) of 3507 patients in the radial group compared with 33 (0·9%) of 3514 patients in the femoral group (HR 0·73, 95% CI 0·43–1·23; p=0·23). At 30 days, 42 of 3507 patients in the radial group had large haematoma compared with 106 of 3514 in the femoral group (HR 0·40, 95% CI 0·28–0·57; p<0·0001). Pseudoaneurysm needing closure occurred in seven of 3507 patients in the radial group compared with 23 of 3514 in the femoral group (HR 0·30, 95% CI 0·13–0·71; p=0·006). Interpretation Radial and femoral approaches are both safe and effective for PCI. However, the lower rate of local vascular complications may be a reason to use the radial approach. Funding Sanofi-Aventis, Population Health Research Institute, and Canadian Network for Trials Internationally (CANNeCTIN), an initiative of the Canadian Institutes of Health Research.
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Summary Background Two large trials have reported contradictory results at 1 year after thrombus aspiration in ST elevation myocardial infarction (STEMI). In a 1-year follow-up of the largest ...randomised trial of thrombus aspiration, we aimed to clarify the longer-term benefits, to help guide clinical practice. Methods The trial of routine aspiration ThrOmbecTomy with PCI versus PCI ALone in Patients with STEMI (TOTAL) was a prospective, randomised, investigator-initiated trial of routine manual thrombectomy versus percutaneous coronary intervention (PCI) alone in 10 732 patients with STEMI. Eligible adult patients (aged ≥18 years) from 87 hospitals in 20 countries were enrolled and randomly assigned (1:1) within 12 h of symptom onset to receive routine manual thrombectomy with PCI or PCI alone. Permuted block randomisation (with variable block size) was done by a 24 h computerised central system, and was stratified by centre. Participants and investigators were not masked to treatment assignment. The trial did not show a difference at 180 days in the primary outcome of cardiovascular death, myocardial infarction, cardiogenic shock, or heart failure. However, the results showed improvements in the surrogate outcomes of ST segment resolution and distal embolisation, but whether or not this finding would translate into a longer term benefit remained unclear. In this longer-term follow-up of the TOTAL study, we report the results on the primary outcome (cardiovascular death, myocardial infarction, cardiogenic shock, or heart failure) and secondary outcomes at 1 year. Analyses of the primary outcome were by modified intention to treat and only included patients who underwent index PCI. This trial is registered with ClinicalTrials.gov , number NCT01149044. Findings Between Aug 5, 2010, and July 25, 2014, 10 732 eligible patients were enrolled and randomly assigned to thrombectomy followed by PCI (n=5372) or to PCI alone (n=5360). After exclusions of patients who did not undergo PCI in each group (337 in the PCI and thrombectomy group and 331 in the PCI alone group), the final study population comprised 10 064 patients (5035 thrombectomy and 5029 PCI alone). The primary outcome at 1 year occurred in 395 (8%) of 5035 patients in the thrombectomy group compared with 394 (8%) of 5029 in the PCI alone group (hazard ratio HR 1·00 95% CI 0·87–1·15, p=0·99). Cardiovascular death within 1 year occurred in 179 (4%) of the thrombectomy group and in 192 (4%) of 5029 in the PCI alone group (HR 0·93 95% CI 0·76–1·14, p=0·48). The key safety outcome, stroke within 1 year, occurred in 60 patients (1·2%) in the thrombectomy group compared with 36 (0·7%) in the PCI alone group (HR 1·66 95% CI 1·10–2·51, p=0·015). Interpretation Routine thrombus aspiration during PCI for STEMI did not reduce longer-term clinical outcomes and might be associated with an increase in stroke. As a result, thrombus aspiration can no longer be recommended as a routine strategy in STEMI. Funding Canadian Institutes of Health Research, Canadian Network and Centre for Trials Internationally, and Medtronic Inc.
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Summary Background Clopidogrel and aspirin are the most commonly used antiplatelet therapies for percutaneous coronary intervention (PCI). We assessed the effect of various clopidogrel and aspirin ...regimens in prevention of major cardiovascular events and stent thrombosis in patients undergoing PCI. Methods The CURRENT-OASIS 7 trial was undertaken in 597 centres in 39 countries. 25 086 individuals with acute coronary syndromes and intended early PCI were randomly assigned to double-dose (600 mg on day 1, 150 mg on days 2–7, then 75 mg daily) versus standard-dose (300 mg on day 1 then 75 mg daily) clopidogrel, and high-dose (300–325 mg daily) versus low-dose (75–100 mg daily) aspirin. Randomisation was done with a 24 h computerised central automated voice response system. The clopidogrel dose comparison was double-blind and the aspirin dose comparison was open label with blinded assessment of outcomes. This prespecified analysis is of the 17 263 individuals who underwent PCI. The primary outcome was cardiovascular death, myocardial infarction, or stroke at 30 days. Analyses were by intention to treat, adjusted for propensity to undergo PCI. This trial is registered with ClinicalTrials.gov , number NCT00335452. Findings 8560 patients were assigned to double-dose and 8703 to standard-dose clopidogrel (8558 and 8702 completed 30-day follow-up, respectively), and 8624 to high-dose and 8639 to low-dose aspirin (8622 and 8638 completed 30-day follow-up, respectively). Compared with the standard dose, double-dose clopidogrel reduced the rate of the primary outcome (330 events 3·9% vs 392 events 4·5%; adjusted hazard ratio 0·86, 95% CI 0·74–0·99, p=0·039) and definite stent thrombosis (58 0·7% vs 111 1·3%; 0·54 0·39–0·74, p=0·0001). High-dose and low-dose aspirin did not differ for the primary outcome (356 4·1% vs 366 4·2%; 0·98, 0·84–1·13, p=0·76). Major bleeding was more common with double-dose than with standard-dose clopidogrel (139 1·6% vs 99 1·1%; 1·41, 1·09–1·83, p=0·009) and did not differ between high-dose and low-dose aspirin (128 1·5% vs 110 1·3%; 1·18, 0·92–1·53, p=0·20). Interpretation In patients undergoing PCI for acute coronary syndromes, a 7-day double-dose clopidogrel regimen was associated with a reduction in cardiovascular events and stent thrombosis compared with the standard dose. Efficacy and safety did not differ between high-dose and low-dose aspirin. A double-dose clopidogrel regimen can be considered for all patients with acute coronary syndromes treated with an early invasive strategy and intended early PCI. Funding Sanofi-Aventis and Bristol-Myers Squibb.
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Summary Background Cardiovascular risk factors are associated with dementia and cognitive decline. We investigated the effects of renin-angiotensin system blockade on cognitive function in patients ...aged 55 years and older with established atherosclerotic cardiovascular disease or diabetes with end-organ damage in two clinical trials. Methods In the main study, ONTARGET, a double-blind, double-dummy, randomised controlled trial, the effects on cardiovascular outcomes of standard doses of an angiotensin-converting enzyme (ACE) inhibitor (ramipril), an angiotensin-receptor blocker (telmisartan), and a combination of the drugs were evaluated in 25 620 participants. In the parallel TRANSCEND trial, the effects of telmisartan were compared with those of placebo in 5926 participants intolerant to ACE inhibitors. Secondary outcomes included cognitive impairment (defined by investigator-reported diagnosis of dementia or significant cognitive dysfunction, or a score of ≤23 on the Mini-Mental State Examination MMSE) and cognitive decline (a decrease of ≤3 points on the MMSE from baseline during follow-up). Analyses were by intention to treat. We pooled data from these studies to identify baseline predictors of cognitive impairment and its frequency according to mean systolic blood pressure during follow-up. These studies were registered with ClinicalTrials.gov , number NCT00153101. Findings During a median duration of 56 months (IQR 51–64) of follow-up in ONTARGET, cognitive impairment occurred in 652 (8%) of 7865 patients allocated ramipril, 584 (7%) of 7797 allocated telmisartan, and 618 (8%) of 7807 allocated combination treatment (combination vs ramipril, odds ratio OR 0·95, 95% CI 0·85–1·07, p=0·39; telmisartan vs ramipril, OR 0·90, 0·80–1·01, p=0·06). Corresponding figures for cognitive decline were 1314 (17%), 1279 (17%), and 1240 (17%) in each of the groups, respectively (telmisartan vs ramipril, OR 0·97, 0·89–1·06, p=0·53; combination vs ramipril, OR 0·95, 0·88–1·04, p=0·28). In TRANSCEND, cognitive impairment occurred in 239 (9%) of 2694 participants allocated telmisartan compared with 245 (9%) of 2689 allocated placebo (OR 0·97, 0·81–1·17, p=0·76). The corresponding figures for cognitive decline were 454 (17%) and 412 (16%; OR 1·10, 0·95–1·27, p=0·22). Interpretation In patients with cardiovascular disease or diabetes, different approaches to blocking of the renin-angiotensin system had no clear effects on cognitive outcomes. Although patients with the lowest systolic blood pressure had the greatest preservation of cognitive function, meta-regression analyses did not show any benefits of blood-pressure lowering on cognition over several years of treatment. Funding Boehringer-Ingelheim.
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Objectives The study sought to evaluate the relationship between procedural volume and outcomes with radial and femoral approach. Background RIVAL (RadIal Vs. femorAL) was a randomized trial of ...radial versus femoral access for coronary angiography/intervention (N = 7,021), which overall did not show a difference in primary outcome of death, myocardial infarction, stroke, or non–coronary artery bypass graft major bleeding. Methods In pre-specified subgroup analyses, the hazard ratios for the primary outcome were compared among centers divided by tertiles and among individual operators. A multivariable Cox proportional hazards model was used to determine the independent effect of center and operator volumes after adjusting for other variables. Results In high-volume radial centers, the primary outcome was reduced with radial versus femoral access (hazard ratio HR: 0.49; 95% confidence interval CI: 0.28 to 0.87) but not in intermediate- (HR: 1.23; 95% CI: 0.88 to 1.72) or low-volume centers (HR: 0.83; 95% CI: 0.52 to 1.31; interaction p = 0.021). High-volume centers enrolled a higher proportion of ST-segment elevation myocardial infarction (STEMI). After adjustment for STEMI, the benefit of radial access persisted at high-volume radial centers. There was no difference in the primary outcome between radial and femoral access by operator volume: high-volume operators (HR: 0.79; 95% CI: 0.48 to 1.28), intermediate (HR: 0.87; 95% CI: 0.60 to 1.27), and low (HR: 1.10; 95% CI: 0.74 to 1.65; interaction p = 0.536). However, in a multivariable model, overall center volume and radial center volume were independently associated with the primary outcome but not femoral center volume (overall percutaneous coronary intervention volume HR: 0.92, 95% CI: 0.88 to 0.96; radial volume HR: 0.88, 95% CI: 0.80 to 0.97; and femoral volume HR: 1.00, 95% CI: 0.94 to 1.07; p = 0.98). Conclusions Procedural volume and expertise are important, particularly for radial percutaneous coronary intervention. (A Trial of Trans-radial Versus Trans-femoral Percutaneous Coronary Intervention PCI Access Site Approach in Patients With Unstable Angina or Myocardial Infarction Managed With an Invasive Strategy RIVAL; NCT01014273 )
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Background We quantified the impact of lifestyle and dietary modifications on chronic kidney disease (CKD) by estimating population-attributable fractions (PAFs). Study Design Observational cohort ...study. Setting & Participants Middle-aged adults with type 2 diabetes but without severe albuminuria from the Ongoing Telmisartan Alone and in Combination With Ramipril Global Endpoint Trial (ONTARGET; n = 6,916). Factors Modifiable lifestyle/dietary risk factors, such as physical activity, size of social network, alcohol intake, tobacco use, diet, and intake of various food items. Outcomes The primary outcome was CKD, ascertained as moderate to severe albuminuria or ≥5% annual decline in estimated glomerular filtration rate (eGFR) after 5.5 years. The competing risk for death was considered. PAF was defined as the proportional reduction in CKD or mortality (within 5.5 years) that would occur if exposure to a risk factor was changed to an optimal level. Results At baseline, median urinary albumin-creatinine ratio and eGFR were 6.6 (IQR, 2.9-25.0) mg/mmol and 71.5 (IQR, 58.1-85.9) mL/min/1.73 m2 , respectively. After 5.5 years, 704 (32.5%) participants developed albuminuria, 1,194 (55.2%) had a ≥5% annual eGFR decline, 267 (12.3%) had both, and 1,022 (14.8%) had died. Being physically active every day has PAFs of 5.1% (95% CI, 0.5%-9.6%) for CKD and 12.3% (95% CI, 4.9%-19.1%) for death. Among food items, increasing vegetable intake would have the largest impact on population health. Considering diet, weight, physical activity, tobacco use, and size of social network, exposure to less than optimum levels gives PAFs of 13.3% (95% CI, 5.5%-20.9%) for CKD and 37.5% (95% CI, 27.8%-46.7%) for death. For the 17.8 million middle-aged Americans with diabetes, improving 1 of these lifestyle behaviors to the optimal range could reduce the incidence or progression of CKD after 5.5 years by 274,000 and the number of deaths within 5.5 years by 405,000. Limitations Ascertainment of changes in kidney measures does not precisely match the definitions for incidence or progression of CKD. Conclusions Healthy lifestyle and diet are associated with less CKD and mortality and may have a substantial impact on population kidney health.
Background Apixaban is superior to aspirin for the prevention of stroke in patients with atrial fibrillation. Apixaban is partially renally excreted and may accumulate in patients with renal ...impairment. Methods We evaluated the efficacy and safety of apixaban 5 mg twice daily (2.5 mg twice daily in selected patients) compared with aspirin 81 to 324 mg daily in 1697 patients with stage III chronic kidney disease (CKD) enrolled in the Apixaban Versus Acetylsalicylic Acid to Prevent Stroke in Atrial Fibrillation Patients Who Have Failed or are Unsuitable for Vitamin K Antagonist Treatment (AVERROES) trial. Primary outcome was all stroke and non–central nervous system emboli. Results Compared with patients with estimated glomerular filtration rates (eGFRs) ≥60 mL/min per 1.73 m2 , stage III CKD patients (n = 1697; 30% of the cohort; mean eGFR 49 mL/min per 1.73 m2 ) were older (mean age 75 v 68 years) with more frequent hypertension, diabetes, heart failure, and previous stroke (all P < .01). Stage III CKD was an independent predictor of primary events (hazard ratio HR 1.6; P = .01) and major hemorrhage (HR 2.2; P = .02). Apixaban significantly reduced primary events by 68% (5.6% per year on aspirin v 1.8% per year on apixaban; HR 0.32; 95% confidence interval CI 0.18-0.55; P < .001) for stage III CKD participants and by 43% (2.8% per year on aspirin v 1.6% per year on apixaban; HR 0.57; 95% CI 0.37-0.87; P = .009) for patients with eGFRs ≥60 mL/min per 1.73 m2 ( P for interaction = .10). There was no significant difference in major hemorrhage in stage III CKD patients by treatment: 2.2% per year with aspirin versus 2.5% per year with apixaban (HR 1.2; 95% CI 0.65-2.1). Conclusions Stage III CKD was an independent predictor of stroke in atrial fibrillation patients taking aspirin. Among stage III CKD patients, apixaban significantly reduced stroke relative to aspirin without a significant increase in major hemorrhage.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
Abstract Background Benznidazole is recommended for treatment of Chagas infection. Effects of combination therapy with benznidazole and posaconazole have not been tested in Trypanosoma cruzi ...carriers. Objectives The purpose of this study was to determine whether posaconazole alone or combined with benznidazole were superior to benznidazole monotherapy in eliminating T. cruzi parasites measured by real time polymerase chain reaction (RT-PCR) in asymptomatic Chagas carriers. Methods A prospective, multicenter randomized placebo-controlled study was conducted in 120 subjects from Latin America and Spain who were randomized to 4 groups: posaconazole 400 mg twice a day (b.i.d.); benznidazole 200 mg + placebo b.i.d.; benznidazole 200 mg b.i.d. + posaconazole 400 mg b.i.d.; or placebo 10 mg b.i.d. T. cruzi deoxyribonucleic acid was detected by RT-PCR at 30, 60, 90, 120, 150, 180, and 360 days. The primary efficacy outcome is the proportion of subjects with persistent negative RT-PCR by day 180; the secondary outcome was negative RT-PCR at 360 days. Results Only 13.3% of those receiving posaconazole and 10% receiving placebo achieved the primary outcome, compared with 80% receiving benznidazole + posaconazole and 86.7% receiving benznidazole monotherapy (p < 0.0001 vs. posaconazole/placebo). Posaconazole monotherapy or posaconazole combined with benznidazole achieved high RT-PCR conversion rates during treatment (30 days; 93.3% and 88.9% and 60 days; 90%, and 92.3%) that were similar to benznidazole (89.7% and 89.3%); all were superior to placebo or posaconazole (10% and 16.7%, p < 0.0001). This was not observed at 360 days; benznidazole + posaconazole and benznidazole monotherapy (both 96%) versus placebo (17%) and posaconazole (16%, p < 0.0001). Serious adverse events were rare (6 patients) and were observed in the benznidazole-treated patients. Permanent discontinuation was reported in 19 patients (31.7%) receiving either benznidazole monotherapy or combined with posaconazole. Conclusions Posaconazole demonstrated trypanostatic activity during treatment, but it is ineffective long-term in asymptomatic T. cruzi carriers. Benznidazole monotherapy is superior to posaconazole, with high RT-PCR conversion rates sustained at 1 year. Side effects lead to therapy discontinuation in 32%. No advantages were observed with combined therapy versus benznidazole monotherapy. (A Study of the Use of Oral Posaconazole POS in the Treatment of Asymptomatic Chronic Chagas Disease P05267 STOP CHAGAS: NCT01377480 )
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Abstract Objectives The purpose of this study was to determine the efficacy and safety of radial versus femoral access in women undergoing coronary angiography/intervention. Background The risk of ...bleeding and vascular access site complications are higher in women than in men. Methods In a pre-specified RIVAL (RadIal Vs femorAL access for coronary intervention) subgroup analysis, we compared outcomes in women (n = 1,861) and men (n = 5,160) randomized to radial versus femoral access. Results Overall, women were at higher risk of major vascular complications compared with men (4.7% vs. 1.7%; p < 0.0001). Major vascular complications were significantly reduced with radial access in women (3.1% vs. 6.1%; hazard ratio HR: 0.5; 95% confidence interval CI: 0.32 to 0.78; p = 0.002) and in men (0.7% vs. 2.8%; HR: 0.27; 95% CI: 0.17 to 0.45; p < 0.0001; interaction p = 0.092). Crossover rates were higher with radial compared with femoral access in women (11.1% vs. 1.9%; HR: 5.88; p < 0.0001) and men (6.3% vs. 1.9%; HR: 3.32; p < 0.0001; interaction p = 0.054). Percutaneous coronary intervention (PCI) success rates were similar irrespective of access site (women: HR: 1.05; p = 0.471; men: HR: 1.00; p = 0.888; interaction p = 0.674), with no differences in PCI complications. In multivariable analyses, female sex was an independent predictor of major vascular complications (HR: 2.39; 95% CI: 1.76 to 3.25; p < 0.0001). There were consistent findings for women and men, with no difference for the primary composite endpoint of death, myocardial infarction, stroke, and non–coronary artery bypass grafting bleeding (women: 3.9% vs. 5.0%; HR: 0.77; 95% CI: 0.50 to 1.19; men: 3.54% vs. 3.5%; HR: 1.00; 95% CI: 0.75 to −1.34; interaction p = 0.325). Conclusions Women undergoing coronary angiography and PCI have a higher risk of vascular access site complications compared with men, and radial access is an effective method to reduce these complications.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
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