| 1. |
- Tsartsalis, Dimitrios, et al.
(författare)
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Risk and Protective Factors for Sudden Cardiac Death: An Umbrella Review of Meta-Analyses
- 2022
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Ingår i: Frontiers in Cardiovascular Medicine. - : FRONTIERS MEDIA SA. - 2297-055X. ; 9
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Forskningsöversikt (refereegranskat)abstract
- Background: Sudden cardiac death (SCD) is a global public health issue, accounting for 10-20% of deaths in industrialized countries. Identification of modifiable risk factors may reduce SCD incidence. Methods: This umbrella review systematically evaluates published meta-analyses of observational and randomized controlled trials (RCT) for the association of modifiable risk and protective factors of SCD. Results: Fifty-five meta-analyses were included in the final analysis, of which 31 analyzed observational studies and 24 analyzed RCTs. Five associations of meta-analyses of observational studies presented convincing evidence, including three risk factors [diabetes mellitus (DM), smoking, and early repolarization pattern (ERP)] and two protective factors [implanted cardiac defibrillator (ICD) and physical activity]. Meta-analyses of RCTs identified five protective factors with a high level of evidence: ICDs, mineralocorticoid receptor antagonist (MRA), beta-blockers, and sodium-glucose cotransporter-2 (SGLT-2) inhibitors in patients with HF. On the contrary, other established, significant protective agents [i.e., amiodarone and statins along with angiotensin-converting enzyme (ACE) inhibitors in heart failure (HF)], did not show credibility. Likewise, risk factors as left ventricular ejection fraction in HF, and left ventricular hypertrophy, non-sustain ventricular tachycardia, history of syncope or aborted SCD in pediatric patients with hypertrophic cardiomyopathy, presented weak or no evidence. Conclusions: Lifestyle risk factors (physical activity, smoking), comorbidities like DM, and electrocardiographic features like ERP constitute modifiable risk factors of SCD. Alternatively, the use of MRA, beta-blockers, SGLT-2 inhibitors, and ICD in patients with HF are credible protective factors. Further investigation targeted in specific populations will be important for reducing the burden of SCD.
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| 2. |
- Alfredsson, Joakim, 1962-, et al.
(författare)
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Bleeding complications with clopidogrel or ticagrelor in ST-elevation myocardial infarction patients : A real life cohort study of two treatment strategies
- 2020
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Ingår i: IJC Heart & Vasculature. - : Elsevier. - 2352-9067. ; 27
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Tidskriftsartikel (refereegranskat)abstract
- IntroductionDual antiplatelet therapy (DAPT), including potent P2Y12 inhibition after ST-elevation myocardial infarction (STEMI) is recommended in clinical guidelines. However, bleeding complications are common, and associated with worse outcomes. The aim of this study was to assess incidence of bleeding events with a clopidogrel-based compared to a ticagrelor-based DAPT strategy, in a real world population. Secondary aims were to assess ischemic complications and mortality.Methods and ResultsWe identified 330 consecutive STEMI patients with a clopidogrel-based and 330 with a ticagrelor-based DAPT strategy. Patientś medical records were searched for bleeding and ischemic complications, over 6 months follow-up.The two groups were well balanced in baseline characteristics, age (69 years inboth groups), sex (31% vs 32% females), history of diabetes (19% vs 21%), hypertension (43% in both) and MI (17% vs 15%). There was no difference in CRUSADE bleeding score (28 vs 29). After discharge, there were more than twice as many bleeding events with a ticagrelor-based compared with a clopidogrel-based strategy (13.3% vs. 6.5%, p = 0.005). Bleeding events included significantly more severe bleeding complications (TIMI major/minor [5.8 vs 1.0, p = 0.001]) during the ticagrelor-based period. There was no significant difference in the composite of death, MI or stroke (7.8% vs 7.1%, p = 0.76).ConclusionsIn this observational study, a ticagrelor-based DAPT strategy was associated with significantly more bleeding complications, without any significant change in death, MI or stroke. Larger studies are needed to determine whether bleeding complications off-sets benefits with a more potent DAPT strategy in older and more comorbid real-life patients.
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| 3. |
- Andell, Pontus, et al.
(författare)
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Reclassification of Treatment Strategy With Instantaneous Wave-Free Ratio and Fractional Flow Reserve : A Substudy From the iFR-SWEDEHEART Trial
- 2018
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Ingår i: JACC: Cardiovascular Interventions. - : Elsevier BV. - 1936-8798 .- 1876-7605. ; 11:20, s. 2084-2094
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: The authors sought to compare reclassification of treatment strategy following instantaneous wave-free ratio (iFR) and fractional flow reserve (FFR). Background: iFR was noninferior to FFR in 2 large randomized controlled trials in guiding coronary revascularization. Reclassification of treatment strategy by FFR is well-studied, but similar reports on iFR are lacking. Methods: The iFR-SWEDEHEART (Instantaneous Wave-Free Ratio Versus Fractional Flow Reserve in Patients With Stable Angina Pectoris or Acute Coronary Syndrome Trial) study randomized 2,037 participants with stable angina or acute coronary syndrome to treatment guided by iFR or FFR. Interventionalists entered the preferred treatment (optimal medical therapy [OMT], percutaneous coronary intervention [PCI], or coronary artery bypass grafting [CABG]) on the basis of coronary angiograms, and the final treatment decision was mandated by the iFR/FFR measurements. Results: In the iFR/FFR (n = 1,009/n = 1,004) populations, angiogram-based treatment approaches were similar (p = 0.50) with respect to OMT (38%/35%), PCI of 1 (37%/39%), 2 (15%/16%), and 3 vessels (2%/2%) and CABG (8%/8%). iFR and FFR reclassified 40% and 41% of patients, respectively (p = 0.78). The majority of reclassifications were conversion of PCI to OMT in both the iFR/FFR groups (31.4%/29.0%). Reclassification increased with increasing number of lesions evaluated (odds ratio per evaluated lesion for FFR: 1.46 [95% confidence interval: 1.22 to 1.76] vs. iFR 1.37 [95% confidence interval: 1.18 to 1.59]). Reclassification rates for patients with 1, 2, and 3 assessed vessels were 36%, 52%, and 53% (p < 0.01). Conclusions: Reclassification of treatment strategy of intermediate lesions was common and occurred in 40% of patients with iFR or FFR. The most frequent reclassification was conversion from PCI to OMT regardless of physiology modality. Irrespective of the physiological index reclassification of angiogram-based treatment strategy increased with the number of lesions evaluated.
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| 4. |
- Bollano, Entela, 1970, et al.
(författare)
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Temporal trends in characteristics and outcome of heart failure patients with and without significant coronary artery disease
- 2022
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Ingår i: ESC Heart Failure. - Oxford, United Kingdom : John Wiley & Sons. - 2055-5822. ; 9:3, s. 1812-1822
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Tidskriftsartikel (refereegranskat)abstract
- Aims: Ischaemic coronary artery disease (CAD) remains the leading cause of mortality globally due to sudden death and heart failure (HF). Invasive coronary angiography (CAG) is the gold standard for evaluating the presence and severity of CAD. Our objective was to assess temporal trends in CAG utilization, patient characteristics, and prognosis in HF patients undergoing CAG at a national level.Methods and results: We used data from the Swedish Coronary Angiography and Angioplasty Registry. Data on all patients undergoing CAG for HF indication in Sweden between 2000 and 2018 were collected and analysed. Long-term survival was estimated with multivariable Cox proportional hazards regression adjusted for differences in patient characteristics. In total, 22 457 patients (73% men) with mean age 64.2 ± 11.3 years were included in the study. The patients were increasingly older with more comorbidities over time. The number of CAG specifically for HF indication increased by 5.5% per calendar year (P < 0.001). No such increase was seen for indications angina pectoris and ST-elevation myocardial infarction. A normal CAG or non-obstructive CAD was reported in 63.2% (HF-NCAD), and 36.8% had >50% diameter stenosis in one or more coronary arteries (HF-CAD). The median follow-up time was 3.6 years in HF-CAD and 5 years in HF-NCAD. Age and sex-adjusted survival improved linearly by 1.3% per calendar year in all patients. Compared with HF-NCAD, long-term mortality was higher in HF-CAD patients. The risk of death increased with the increasing severity of CAD. Compared with HF-NCAD, the risk estimate in patients with a single-vessel disease was higher [hazard ratio (HR) 1.3; 95% confidence interval (CI) 1.20–1.41; P < 0.001], a multivessel disease without the involvement of left main coronary artery (HR 1.72; 95% CI 1.58–1.88; P < 0.001), and with left main disease (HR 2.02; 95% CI 1.88–2.18; P < 0.001). The number of HF patients undergoing revascularization with percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) increased by 7.5% (P < 0.001) per calendar year. The majority (53.4%) of HF-CAD patients were treated medically, while a minority (46.6%) were referred for revascularization with PCI or CABG. Compared with patients treated with PCI, the proportion of patients treated medically or with CABG decreased substantially (P < 0.001).Conclusions: Over 18 years, the number of patients with HF undergoing CAG has increased substantially. Expanded utilization of CAG increased the number of HF patients treated with percutaneous coronary intervention and coronary artery bypass surgery. Long-term survival improved in all HF patients despite a steady increase of elderly patients with comorbidities.
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| 5. |
- Bondesson, Per, et al.
(författare)
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Comparison of two drug-eluting balloons : a report from the SCAAR registry
- 2012
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Ingår i: EuroIntervention. - : Europa Edition. - 1774-024X .- 1969-6213. ; 8:4, s. 444-449
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Tidskriftsartikel (refereegranskat)abstract
- Aims: Recently, drug-eluting balloons have received a guideline class IIa recommendation in the treatment of in-stent restenosis after bare metal stent implantation. It is not known if different balloons perform equally. Using a large real world registry, restenosis frequency was reported for two drug-eluting balloons. less thanbrgreater than less thanbrgreater thanMethods and results: From April 2009 until September 2011, 1,129 patients were treated with paclitaxel-eluting balloons in Sweden. Mean follow-up was 328 +/- 210 days. Nine hundred and nineteen patients were treated with a balloon using a contrast agent as a drug-carrier and 217 with a balloon without a contrast agent as a drug-carrier. The indications were predominantly de novo (45.4%) or in-stent restenotic (51.8%) lesions. The overall incidence of restenosis at six months was 3.4% with the paclitaxel balloon using a contrast agent as carrier, compared with 12.5% with the paclitaxel-eluting balloon without a carrier (risk ratio: 0.42; 95% confidence interval [CI] [0.26-0.68]). After adjusting for indications, lesion types and procedural factors, the risk ratio was 0.39; 95% CI (0.24-0.65). less thanbrgreater than less thanbrgreater thanConclusions: This observational study from a large real world population shows a major difference between two paclitaxel-eluting balloons. The findings suggest that there are no class effects for drug-eluting balloons and factors other than the drug may be important for the clinical effect.
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| 6. |
- Christiansen, Evald H, et al.
(författare)
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Instantaneous Wave-free Ratio versus Fractional Flow Reserve to Guide PCI.
- 2017
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Ingår i: The New England journal of medicine. - : Massachussetts Medical Society. - 1533-4406 .- 0028-4793. ; 376:19, s. 1813-1823
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Tidskriftsartikel (refereegranskat)abstract
- The instantaneous wave-free ratio (iFR) is an index used to assess the severity of coronary-artery stenosis. The index has been tested against fractional flow reserve (FFR) in small trials, and the two measures have been found to have similar diagnostic accuracy. However, studies of clinical outcomes associated with the use of iFR are lacking. We aimed to evaluate whether iFR is noninferior to FFR with respect to the rate of subsequent major adverse cardiac events.We conducted a multicenter, randomized, controlled, open-label clinical trial using the Swedish Coronary Angiography and Angioplasty Registry for enrollment. A total of 2037 participants with stable angina or an acute coronary syndrome who had an indication for physiologically guided assessment of coronary-artery stenosis were randomly assigned to undergo revascularization guided by either iFR or FFR. The primary end point was the rate of a composite of death from any cause, nonfatal myocardial infarction, or unplanned revascularization within 12 months after the procedure.A primary end-point event occurred in 68 of 1012 patients (6.7%) in the iFR group and in 61 of 1007 (6.1%) in the FFR group (difference in event rates, 0.7 percentage points; 95% confidence interval [CI], -1.5 to 2.8; P=0.007 for noninferiority; hazard ratio, 1.12; 95% CI, 0.79 to 1.58; P=0.53); the upper limit of the 95% confidence interval for the difference in event rates fell within the prespecified noninferiority margin of 3.2 percentage points. The results were similar among major subgroups. The rates of myocardial infarction, target-lesion revascularization, restenosis, and stent thrombosis did not differ significantly between the two groups. A significantly higher proportion of patients in the FFR group than in the iFR group reported chest discomfort during the procedure.Among patients with stable angina or an acute coronary syndrome, an iFR-guided revascularization strategy was noninferior to an FFR-guided revascularization strategy with respect to the rate of major adverse cardiac events at 12 months. (Funded by Philips Volcano; iFR SWEDEHEART ClinicalTrials.gov number, NCT02166736 .).
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| 7. |
- Desta, Liyew, et al.
(författare)
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Transradial versus trans-femoral access site in high-speed rotational atherectomy in Sweden
- 2022
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Ingår i: International Journal of Cardiology. - : Elsevier BV. - 0167-5273 .- 1874-1754. ; 352, s. 45-51
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Tidskriftsartikel (refereegranskat)abstract
- Background: Radial artery is the preferred access site in contemporary percutaneous coronary intervention (PCI). However, limited data exist regarding utilization pattern, safety, and long-term efficacy of transradial artery access (TRA) PCI in heavily calcified lesions using high-speed rotational atherectomy (HSRA). Methods: All patients who underwent HSRA-PCI in Sweden between 2005 and 2016 were included. Outcomes were major adverse cardiac events (MACE, including death, myocardial infarction (MI) or target vessel revascularisation (TVR)), in-hospital bleeding and restenosis. Inverse probability of treatment weighting was used to adjust for the non-randomized access site selection. Results: We included 1479 patients of whom 649 had TRA and 782 transfemoral artery access (TFA) HSRA-PCI. The rate of TRA increased significantly by 18% per year but remained lower in HSRA-PCI (60%) than in the overall PCI population (85%) in 2016. TRA was associated with comparable angiographic success but significantly lower risk for major (adjusted OR 0.16; 95% CI 0.05–0.47) or any in-hospital bleeding (adjusted OR 0.32; 95% CI 0.13–0.78). At one year, the adjusted risk for MACE (HR 0.87; 95% CI 0.67–1.13) and its individual components did not differ between TRA and TFA patients. The risk for restenosis did not significantly differ between TRA and TFA HSRA-PCI treated lesions (adjusted HR 0.92; 95% CI 0.46–1.81). Conclusion: HSRA-PCI by TRA was associated with significantly lower risk for in-hospital bleeding and equivalent long-term efficacy when compared with TFA. Our data support the feasibility and superior safety profile of TRA in HSRA-PCI.
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| 8. |
- Dworeck, Christian, et al.
(författare)
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Radial artery access is associated with lower mortality in patients undergoing primary PCI : a report from the SWEDEHEART registry
- 2020
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Ingår i: European Heart Journal. - : Sage Publications. - 2048-8726 .- 2048-8734. ; 9:4, s. 323-332
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: The purpose of this observational study was to evaluate the effects of radial artery access versus femoral artery access on the risk of 30-day mortality, inhospital bleeding and cardiogenic shock in patients with ST-elevation myocardial infarction undergoing primary percutaneous coronary intervention.Methods: We used data from the SWEDEHEART registry and included all patients who were treated with primary percutaneous coronary intervention in Sweden between 2005 and 2016. We compared patients who had percutaneous coronary intervention by radial access versus femoral access with regard to the primary endpoint of all-cause death within 30 days, using a multilevel propensity score adjusted logistic regression which included hospital as a random effect.Results: During the study period, 44,804 patients underwent primary percutaneous coronary intervention of whom 24,299 (54.2%) had radial access and 20,505 (45.8%) femoral access. There were 2487 (5.5%) deaths within 30 days, of which 920 (3.8%) occurred in the radial access and 1567 (7.6%) in the femoral access group. After propensity score adjustment, radial access was associated with a lower risk of death (adjusted odds ratio (OR) 0.70, 95% confidence interval (CI) 0.55-0.88,P = 0.025). We found no interaction between access site and age, gender and cardiogenic shock regarding 30-day mortality. Radial access was also associated with a lower adjusted risk of bleeding (adjusted OR 0.45, 95% CI 0.25-0.79,P = 0.006) and cardiogenic shock (adjusted OR 0.41, 95% CI 0.24-0.73,P = 0.002).Conclusions: In patients with ST-elevation myocardial infarction, primary percutaneous coronary intervention by radial access rather than femoral access was associated with an adjusted lower risk of death, bleeding and cardiogenic shock. Our findings are consistent with, and add external validity to, recent randomised trials.
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| 9. |
- Erlinge, David, et al.
(författare)
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Bivalirudin versus heparin monotherapy in non-ST-segment elevation myocardial infarction
- 2019
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Ingår i: European Heart Journal. - : Sage Publications. - 2048-8726 .- 2048-8734. ; 8:6, s. 492-501
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The optimal anti-coagulation strategy for patients with non-ST-elevation myocardial infarction treated with percutaneous coronary intervention is unclear in contemporary clinical practice of radial access and potent P2Y12-inhibitors. The aim of this study was to investigate whether bivalirudin was superior to heparin monotherapy in patients with non-ST-elevation myocardial infarction without routine glycoprotein IIb/IIIa inhibitor use.METHODS: In a large pre-specified subgroup of the multicentre, prospective, randomised, registry-based, open-label clinical VALIDATE-SWEDEHEART trial we randomised patients with non-ST-elevation myocardial infarction undergoing percutaneous coronary intervention, treated with ticagrelor or prasugrel, to bivalirudin or heparin monotherapy with no planned use of glycoprotein IIb/IIIa inhibitors during percutaneous coronary intervention. The primary endpoint was the rate of a composite of all-cause death, myocardial infarction or major bleeding within 180 days.RESULTS: A total of 3001 patients with non-ST-elevation myocardial infarction, were enrolled. The primary endpoint occurred in 12.1% (182 of 1503) and 12.5% (187 of 1498) of patients in the bivalirudin and heparin groups, respectively (hazard ratio of bivalirudin compared to heparin treatment 0.96, 95% confidence interval 0.78-1.18, p=0.69). The results were consistent in all major subgroups. All-cause death occurred in 2.0% versus 1.7% (hazard ratio 1.15, 0.68-1.94, p=0.61), myocardial infarction in 2.3% versus 2.5% (hazard ratio 0.91, 0.58-1.45, p=0.70), major bleeding in 8.9% versus 9.1% (hazard ratio 0.97, 0.77-1.24, p=0.82) and definite stent thrombosis in 0.3% versus 0.2% (hazard ratio 1.33, 0.30-5.93, p=0.82).CONCLUSION: Bivalirudin as compared to heparin during percutaneous coronary intervention for non-ST-elevation myocardial infarction did not reduce the composite of all-cause death, myocardial infarction or major bleeding in non-ST-elevation myocardial infarction patients receiving current recommended treatments with modern P2Y12-inhibitors and predominantly radial access.
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| 10. |
- Götberg, Matthias, et al.
(författare)
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5-Year Outcomes of PCI Guided by Measurement of Instantaneous Wave-Free Ratio Versus Fractional Flow Reserve
- 2022
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Ingår i: Journal of the American College of Cardiology. - : Elsevier. - 0735-1097 .- 1558-3597. ; 79:10, s. 965-974
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Instantaneous wave-free ratio (iFR) is a coronary physiology index used to assess the severity of coronary artery stenosis to guide revascularization. iFR has previously demonstrated noninferior short-term outcome compared to fractional flow reserve (FFR), but data on longer-term outcome have been lacking.OBJECTIVES: The purpose of this study was to investigate the prespecified 5-year follow-up of the primary composite outcome of all-cause mortality, myocardial infarction, and unplanned revascularization of the iFR-SWEDEHEART trial comparing iFR vs FFR in patients with chronic and acute coronary syndromes.METHODS: iFR-SWEDEHEART was a multicenter, controlled, open-label, registry-based randomized clinical trial using the Swedish Coronary Angiography and Angioplasty Registry for enrollment. A total of 2,037 patients were randomized to undergo revascularization guided by iFR or FFR.RESULTS: No patients were lost to follow-up. At 5 years, the rate of the primary composite endpoint was 21.5% in the iFR group and 19.9% in the FFR group (HR: 1.09; 95% CI: 0.90-1.33). The rates of all-cause death (9.4% vs 7.9%; HR: 1.20; 95% CI: 0.89-1.62), nonfatal myocardial infarction (5.7% vs 5.8%; HR: 1.00; 95% CI: 0.70-1.44), and unplanned revascularization (11.6% vs 11.3%; HR: 1.02; 95% CI: 0.79-1.32) were also not different between the 2 groups. The outcomes were consistent across prespecified subgroups.CONCLUSIONS: In patients with chronic or acute coronary syndromes, an iFR-guided revascularization strategy was associated with no difference in the 5-year composite outcome of death, myocardial infarction, and unplanned revascularization compared with an FFR-guided revascularization strategy. (Evaluation of iFR vs FFR in Stable Angina or Acute Coronary Syndrome [iFR SWEDEHEART]; NCT02166736)
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| 11. |
- Hofmann, Robin, et al.
(författare)
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Oxygen therapy in ST-elevation myocardial infarction.
- 2018
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Ingår i: European Heart Journal. - : Oxford University Press (OUP). - 0195-668X .- 1522-9645. ; 39:29, s. 2730-2739
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Tidskriftsartikel (refereegranskat)abstract
- Aims: To determine whether supplemental oxygen in patients with ST-elevation myocardial infarction (STEMI) impacts on procedure-related and clinical outcomes.Methods and results: The DETermination of the role of Oxygen in suspected Acute Myocardial Infarction (DETO2X-AMI) trial randomized patients with suspected myocardial infarction (MI) to receive oxygen at 6 L/min for 6-12 h or ambient air. In this pre-specified analysis, we included only STEMI patients who underwent percutaneous coronary intervention (PCI). In total, 2807 patients were included, 1361 assigned to receive oxygen, and 1446 assigned to ambient air. The pre-specified primary composite endpoint of all-cause death, rehospitalization with MI, cardiogenic shock, or stent thrombosis at 1 year occurred in 6.3% (86 of 1361) of patients allocated to oxygen compared to 7.5% (108 of 1446) allocated to ambient air [hazard ratio (HR) 0.85, 95% confidence interval (95% CI) 0.64-1.13; P = 0.27]. There was no difference in the rate of death from any cause (HR 0.86, 95% CI 0.61-1.22; P = 0.41), rate of rehospitalization for MI (HR 0.92, 95% CI 0.57-1.48; P = 0.73), rehospitalization for cardiogenic shock (HR 1.05, 95% CI 0.21-5.22; P = 0.95), or stent thrombosis (HR 1.27, 95% CI 0.46-3.51; P = 0.64). The primary composite endpoint was consistent across all subgroups, as well as at different time points, such as during hospital stay, at 30 days and the total duration of follow-up up to 1356 days.Conclusions: Routine use of supplemental oxygen in normoxemic patients with STEMI undergoing primary PCI did not significantly affect 1-year all-cause death, rehospitalization with MI, cardiogenic shock, or stent thrombosis.
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| 12. |
- Jurga, Juliane, et al.
(författare)
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Pretreatment With P2Y12 Inhibitors in Patients With Chronic Coronary Syndrome Undergoing Percutaneous Coronary Intervention : A Report From the Swedish Coronary Angiography and Angioplasty Registry
- 2021
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Ingår i: Circulation. Cardiovascular Interventions. - : NLM (Medline). - 1941-7640 .- 1941-7632. ; 14:11, s. 1086-1093
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: In patients with chronic coronary syndrome undergoing percutaneous coronary intervention, the optimal timing of P2Y12 inhibitors' administration is uncertain. We compared pretreatment versus treatment in the catheterization laboratory (In-Cathlab) in a real-world population.METHODS: In Swedish Coronary Angiography and Angioplasty Registry, all patients with chronic coronary syndrome undergoing coronary angiography and ad hoc percutaneous coronary intervention, between 2006 and 2017 were identified. Pretreatment was defined as P2Y12 inhibitor administration before coronary angiography, outside the catheterization laboratory. Outcomes were net adverse clinical events including death, myocardial infarction, stroke, or bleeding within 30 days of the index procedure and in-hospital bleeding.RESULTS: We included 26 814 patients, 8237 in the In-Cathlab, and 18 577 in the pretreatment group. In-Cathlab treatment compared with pretreatment was associated with lower risk for net adverse clinical event (4.2 versus 5.1%, adjusted hazard ratio 0.79 [0.63-0.99]), bleeding (2.3 versus 2.6%, adjusted hazard ratio, 0.76 [0.57-1.01]). and in-hospital bleeding (1.9 versus 2.1%, adjusted odds ratio, 0.70 [0.51-0.96]). The risk for death, myocardial infarction, or stroke did not significantly differ between the groups. Among the In-Cathlab treated patients, 41% received ticagrelor or prasugrel and 59% clopidogrel. Treatment with ticagrelor or prasugrel was associated with higher risk for net adverse clinical events (5.4% versus 3.4%, adjusted hazard ratio, 1.66 [1.12-2.48]), bleeding (3.4 versus 1.6%, adjusted hazard ratio, 2.14 [1.34-3.42]), and in-hospital bleeding (2.9 versus 1.2%, adjusted odds ratio, 2.24 [1.29-3.90]) but similar risk for death, myocardial infarction, or stroke, compared with clopidogrel.CONCLUSIONS: In patients with chronic coronary syndrome undergoing coronary angiography and ad hoc percutaneous coronary intervention, pretreatment with P2Y12 inhibitors, before arrival to the catheterization laboratory, was not associated with improved clinical outcomes but was associated with increased risk for bleeding. Our data support clopidogrel administration in the catheterization laboratory as the standard of care. Graphic Abstract: A graphic abstract is available for this article.
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| 13. |
- Koul, Sasha, et al.
(författare)
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No Benefit of Ticagrelor Pretreatment Compared With Treatment During Percutaneous Coronary Intervention in Patients With ST-Segment-Elevation Myocardial Infarction Undergoing Primary Percutaneous Coronary Intervention
- 2018
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Ingår i: Circulation. Cardiovascular Interventions. - : LIPPINCOTT WILLIAMS & WILKINS. - 1941-7640 .- 1941-7632. ; 11:3
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Tidskriftsartikel (refereegranskat)abstract
- Background-The effects of ticagrelor pretreatment in patients with ST-segment-elevation myocardial infarction undergoing primary percutaneous coronary intervention (PCI) is debated. This study investigated the effects of ticagrelor pretreatment on clinical outcomes in this patient group.Methods and Results-Patients with ST-segment-elevation myocardial infarction undergoing primary PCI were included from October 2010 to October 2014 in Sweden. Screening was done using the SWEDEHEART register (Swedish Web-System for Enhancement and Development of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies). A total of 7433 patients were included for analysis with 5438 patients receiving ticagrelor pretreatment and 1995 patients with ticagrelor given only in the catheterization laboratory. The primary end point of the study was 30-day event rates of a composite of all-cause mortality, myocardial infarction (MI), and stent thrombosis. Secondary end points were mortality, MI, or stent thrombosis alone and major in-hospital bleeding. Crude event rates showed no difference in 30-day composite end point (6.2% versus 6.5%; P=0.69), mortality (4.5% versus 4.7%; P=0.86), MI (1.6% versus 1.7%; P=0.72), or stent thrombosis (0.5% versus 0.4%; P=0.80) with ticagrelor pretreatment. Three different statistical models were used to correct for baseline differences. No difference in the composite end point, mortality, MI, or stent thrombosis was seen between the 2 groups after statistical adjustment. No increase in in-hospital major bleeding rate was observed with ticagrelor pretreatment.Conclusions-Ticagrelor pretreatment versus ticagrelor given in the catheterization laboratory in patients with ST-segment-elevation myocardial infarction undergoing primary PCI did not improve the composite end point of all-cause mortality or MI or stent thrombosis or its individual components at 30 days.
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| 14. |
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| 15. |
- Mohammad, Moman A., et al.
(författare)
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Incidence and outcome of myocardial infarction treated with percutaneous coronary intervention during COVID-19 pandemic
- 2020
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Ingår i: Heart. - : BMJ Publishing Group Ltd. - 1355-6037 .- 1468-201X. ; 106:23, s. 1812-1818
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: Most reports on the declining incidence of myocardial infarction (MI) during the COVID-19 have either been anecdotal, survey results or geographically limited to areas with lockdowns. We examined the incidence of MI during the COVID-19 pandemic in Sweden, which has remained an open society with a different public health approach fighting COVID-19.METHODS: We assessed the incidence rate (IR) as well as the incidence rate ratios (IRRs) of all MI referred for coronary angiography in Sweden using the nationwide Swedish Coronary Angiography and Angioplasty Registry (SCAAR), during the COVID-19 pandemic in Sweden (1 March 2020-7 May 2020) in relation to the same days 2015-2019.RESULTS: A total of 2443 MIs were referred for coronary angiography during the COVID-19 pandemic resulting in an IR 36 MIs/day (204 MIs/100 000 per year) compared with 15 213 MIs during the reference period with an IR of 45 MIs/day (254 MIs/100 000 per year) resulting in IRR of 0.80, 95% CI (0.74 to 0.86), p<0.001. Results were consistent in all investigated patient subgroups, indicating no change in patient category seeking cardiac care. Kaplan-Meier event rates for 7-day case fatality were 439 (2.3%) compared with 37 (2.9%) (HR: 0.81, 95% CI (0.58 to 1.13), p=0.21). Time to percutaneous coronary intervention (PCI) was shorter during the pandemic and PCI was equally performed, indicating no change in quality of care during the pandemic.CONCLUSION: The COVID-19 pandemic has significantly reduced the incidence of MI referred for invasive treatment strategy. No differences in overall short-term case fatality or quality of care indicators were observed.
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| 16. |
- Mohammad, Moman A., et al.
(författare)
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Trends in Clinical Practice and Outcomes After Percutaneous Coronary Intervention of Unprotected Left Main Coronary Artery
- 2022
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Ingår i: Journal of the American Heart Association. - : John Wiley & Sons. - 2047-9980. ; 11:7
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The use of percutaneous coronary intervention (PCI) to treat unprotected left main coronary artery disease has expanded rapidly in the past decade. We aimed to describe nationwide trends in clinical practice and outcomes after PCI for left main coronary artery disease. METHODS AND RESULTS: Patients (n=4085) enrolled in the SCAAR (Swedish Coronary Angiography and Angioplasty Registry) as undergoing PCI for left main coronary artery disease from 2005 to 2017 were included. A count regression model was used to analyze time-related differences in procedural characteristics. The 3-year major adverse cardiovascular and cerebrovascular event rate defined as death, myocardial infarction, stroke, and repeat revascularization was calculated with the KaplanMeier estimator and Cox proportional hazard model. The number of annual PCI procedures grew from 121 in 2005 to 589 in 2017 (389%). The increase was greater for men (479%) and individuals with diabetes (500%). Periprocedural complications occurred in 7.9%, decreasing from 10% to 6% during the study period. A major adverse cardiovascular and cerebrovascular event occurred in 35.7% of patients, falling from 45.6% to 23.9% (hazard ratio, 0.56; 95% CI, 0.41–0.78; P=0.001). Radial artery access rose from 21.5% to 74.2% and intracoronary diagnostic procedures from 14.0% to 53.3%. Use of bare-metal stents and first-generation drug-eluting stents fell from 19.0% and 71.9%, respectively, to 0, with use of new-generation drugeluting stents increasing to 95.2%. CONCLUSIONS: Recent changes in clinical practice relating to PCI for left main coronary artery disease are characterized by a 4-fold rise in procedures conducted, increased use of evidence-based adjunctive treatment strategies, intracoronary diagnostics, newer stents, and more favorable outcomes.
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| 17. |
- Omerovic, Elmir, et al.
(författare)
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Rationale and design of BROKEN-SWEDEHEART : a registry-based, randomized, parallel, open-label multicenter trial to test pharmacological treatments for broken heart (takotsubo) syndrome
- 2023
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Ingår i: American Heart Journal. - : Elsevier. - 0002-8703 .- 1097-6744. ; 257, s. 33-40
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Tidskriftsartikel (refereegranskat)abstract
- Background: Takotsubo syndrome (TS) is a life-threatening acute heart failure syndrome without any evidence-based treatment options. No treatment for TS has been examined in a randomized trial.Study design and objectives: BROKEN-SWEDEHEART is a multicenter, randomized, open-label, registry-based 2 × 2 factorial clinical trial in patients with TS designed to test whether treatment with adenosine and dipyridamole accelerates cardiac recovery and improves clinical outcomes compared to standard care (study 1); and apixaban reduces the risk of thromboembolic events compared to no treatment with antithrombotic drugs (study 2). The trial will enroll 1,000 patients. Study 1 (adenosine hypothesis) will evaluate 2 coprimary end points: (1) wall motion score index at 48 to 96 hours (evaluated in the first 200 patients); and (2) the composite of death, cardiac arrest, need for mechanical assist device or heart failure hospitalization within 30 days or left ventricular ejection fraction <50% at 48 to 96 hours (evaluated in 1,000 patients). The primary end point in study 2 (apixaban hypothesis) is the composite of death or thromboembolic events within 30 days or the presence of intraventricular thrombus on echocardiography at 48 to 96 hours.Conclusions: BROKEN-SWEDEHEART will be the first prospective randomized multicenter trial in patients with TS. It is designed as 2 parallel studies to evaluate whether adenosine accelerates cardiac recovery and improves cardiac function in the acute phase and the efficacy of anticoagulation therapy for preventing thromboembolic complications in TS. If either of its component studies is successful, the trial will provide the first evidence-based treatment recommendation in TS.Clinical trials identifier: The trial has been approved by the Swedish Medicinal Product Agency and the Swedish Ethical Board and is registered at ClinicalTrials.gov (NCT04666454).
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| 18. |
- Omerovic, Elmir, 1968, et al.
(författare)
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Rationale and design of BROKEN-SWEDEHEART: a registry-based, randomized, parallel, open-label multicenter trial to test pharmacological treatments for broken heart (takotsubo) syndrome.
- 2022
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Ingår i: American heart journal. - : Elsevier BV. - 1097-6744 .- 0002-8703.
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Tidskriftsartikel (refereegranskat)abstract
- Takotsubo syndrome (TS) is a life-threatening acute heart failure syndrome without any evidence-based treatment options. No treatment for TS has been examined in a randomized trial.design and objectives BROKEN-SWEDEHEART is a multicenter, randomized, open-label, registry-based 2 × 2 factorial clinical trial in patients with TS designed to test whether treatment with adenosine and dipyridamole accelerates cardiac recovery and improves clinical outcomes compared to standard care (study 1); and apixaban reduces the risk of thromboembolic events compared to no treatment with antithrombotic drugs (study 2). The trial will enroll 1000 patients. Study 1 (adenosine hypothesis) will evaluate two co-primary endpoints: (1) wall motion score index at 48-96 hours (evaluated in the first 200 patients); and (2) the composite of death, cardiac arrest, need for mechanical assist device or heart failure hospitalization within 30 days or left ventricular ejection fraction <50% at 48-96 hours (evaluated in 1000 patients). The primary endpoint in study 2 (apixaban hypothesis) is the composite of death or thromboembolic events within 30 days or the presence of intraventricular thrombus on echocardiography at 48-96 hours.BROKEN-SWEDEHEART will be the first prospective randomized multicenter trial in patients with TS. It is designed as two parallel studies to evaluate whether adenosine accelerates cardiac recovery and improves cardiac function in the acute phase and the efficacy of anticoagulation therapy for preventing thromboembolic complications in TS. If either of its component studies is successful, the trial will provide the first evidence-based treatment recommendation in TS.
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| 19. |
- Persson, Jonas, et al.
(författare)
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PCI or CABG for left main coronary artery disease : The SWEDEHEART registry
- 2023
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Ingår i: European Heart Journal. - 0195-668X .- 1522-9645. ; 44:30, s. 2833-2842
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Tidskriftsartikel (refereegranskat)abstract
- Aims: An observational nationwide all-comers prospective register study to analyse outcomes after coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI) in unprotected left main coronary artery (LMCA) disease. Methods and results: All patients undergoing coronary angiography in Sweden are registered in the Swedish Web-system for Enhancement and Development of Evidence-based care in Heart disease Evaluated According to Recommended Therapies registry. Between 01/01/2005 and 12/31/2015, 11 137 patients with LMCA disease underwent CABG (n = 9364) or PCI (n = 1773). Patients with previous CABG, ST-elevation myocardial infarction (MI) or cardiac shock were excluded. Death, MI, stroke, and new revascularization during follow-up until 12/31/2015 were identified using national registries. Cox regression with inverse probability weighting (IPW) and an instrumental variable (IV), administrative region, were used. Patients undergoing PCI were older, had higher prevalence of comorbidity but lower prevalence of three-vessel disease. PCI patients had higher mortality than CABG patients after adjustments for known cofounders with IPW analysis (hazard ratio [HR] 2.0 [95% confidence interval (CI) 1.5-2.7]) and known/unknown confounders with IV analysis (HR 1.5 [95% CI 1.1-2.0]). PCI was associated with higher incidence of major adverse cardiovascular and cerebrovascular events (MACCE; death, MI, stroke, or new revascularization) than CABG, with IV analysis (HR 2.8 [95% CI 1.8-4.5]). There was a quantitative interaction for diabetic status regarding mortality (P = 0.014) translating into 3.6 years (95% CI 3.3-4.0) longer median survival time favouring CABG in patients with diabetes. Conclusion: In this non-randomized study, CABG in patients with LMCA disease was associated with lower mortality and fewer MACCE compared to PCI after multivariable adjustment for known and unknown confounders.
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| 20. |
- Sharma, Tania, et al.
(författare)
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Relationship between degree of heparin anticoagulation and clinical outcome in patients receiving potent P2Y12-inhibitors with no planned glycoprotein IIb/IIIa inhibitor during percutaneous coronary intervention in acute myocardial infarction : a VALIDATE-SWEDEHEART substudy
- 2020
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Ingår i: European Heart Journal - Cardiovascular Pharmacotherapy. - : OXFORD UNIV PRESS. - 2055-6837 .- 2055-6845. ; 6:1, s. 6-13
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Tidskriftsartikel (refereegranskat)abstract
- Aims: Heparin is the preferred choice of anticoagulant in percutaneous coronary intervention (PCI) for acute myocardial infarction (MI). An established dosage of heparin has not yet been determined, but treatment may be optimized through monitoring of activated clotting time (ACT). The aim of this study was to determine the relationship between heparin dose or ACT with a composite outcome of death, MI, or bleeding using data from the registry-based, randomized, controlled, and open-label VALIDATE-SWEDEHEART trial, although patients were not randomized to heparin dose in this substudy.Methods and results: Patients with MI undergoing PCI and receiving treatment with a potent P2Y12-inhibitor and anticoagulation with heparin, without the planned use of glycoprotein IIb/IIIa inhibitor (GPI), were enrolled in this substudy. The primary endpoint was a composite endpoint of death, MI, and bleeding at 30 days. The individual components and stent thrombosis were analysed separately. We divided patients into groups according to the initial dose of unfractionated heparin during PCI (<70 U/kg, 70-100 U/kg, and >100 U/kg) or ACT (ACT <250 s, 250-350 s, and >350 s) as well as investigating them as continuous variables in Cox proportional hazards models using univariable and multi-variable analyses. No major differences were noted between heparin stratified in groups (P = 0.22) or heparin as a continuous variable in relation to the primary composite endpoint hazard ratio (HR) 1.0 confidence interval (CI) (0.99-1.01) for heparin dose/kg. No differences were found between ACT stratified in groups (P = 0.453) or ACT in seconds HR 1.0 CI (0.99-1.00) regarding the primary endpoint. The individual components of death, MI, major bleeding, and stent thrombosis were not significantly different across heparin doses or ACT levels either.Conclusion: We found no association between heparin dose or ACT levels and death, MI bleeding complications, or stent thrombosis. Therefore, there is no strong support for a specific heparin dose or mandatory ACT monitoring in patients treated with potent P2Y12-inhibitors with no planned GPI.
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| 21. |
- Sharma, Tania, et al.
(författare)
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Relationship between degree of heparin anticoagulation and clinical outcome in patients receiving potent P2Y12-inhibitors with no planned GPI during primary percutaneous coronary intervention in acute myocardial infarction : a VALIDATE-SWEDEHEART substudy
- 2020
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Ingår i: European Heart Journal - Cardiovascular Pharmacotherapy. - : Oxford University Press. - 2055-6837 .- 2055-6845. ; 6:1, s. 6-13
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Tidskriftsartikel (refereegranskat)abstract
- Aims: Heparin is the preferred choice of anticoagulant in percutaneous coronary intervention (PCI) for acute myocardial infarction (MI). An established dosage of heparin has not yet been determined, but treatment may be optimized through monitoring of activating clotting time (ACT). The aim of this study was to determine the relationship between heparin dose or ACT with a composite outcome of death, MI or bleeding using data from the registry-based, randomized, controlled and open-label VALIDATE-SWEDEHEART-trial, although patients were not randomized to heparin dose in this sub-study.Methods and results: Patients with MI undergoing PCI and receiving treatment with a potent P2Y12-inhibitor and anticoagulation with heparin, without the planned use of glycoprotein IIb/IIIa inhibitor (GPI), were enrolled in this substudy. The primary endpoint was a composite end point of death, MI and bleeding at 30 days. The individual components and stent thrombosis were analyzed separately. We divided patients into groups according to the initial dose of unfractionated heparin during PCI (<70U/kg, 70-100U/kg and >100U/kg) or ACT (ACT <250 sec, 250-350 sec and >350 sec) as well as investigating them as continuous variables in Cox proportional hazards models using univariable and multivariable analyses. No major differences were noted between heparin stratified in groups (p = 0.22) or heparin as a continuous variable in relation to the primary composite endpoint HR 1.0 CI (0.99-1.01) for heparin dose/kg. No differences were found between ACT stratified in groups (p = 0.453) or ACT in seconds HR 1.0 CI (0.99-1.00) regarding the primary endpoint. The individual components of death, MI, major bleeding and stent thrombosis were not significantly different across heparin doses or ACT levels either.Conclusion: We found no association between heparin dose or ACT levels and death, MI bleeding complications or stent thrombosis. Therefore, there is no strong support for a specific heparin dose or mandatory ACT monitoring in patients treated with potent P2Y12-inhibitors with no planned GPI.
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| 22. |
- Silverio, Angelo, et al.
(författare)
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Percutaneous Treatment and Outcomes of Small Coronary Vessels A SCAAR Report
- 2020
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Ingår i: JACC. - : ELSEVIER SCIENCE INC. - 1936-8798 .- 1876-7605. ; 13:7, s. 793-804
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES The aim of this study was to investigate the outcomes of patients with de novo lesions in small coronary vessels undergoing percutaneous coronary intervention (PCI) with drug-coated balloons (DCBs) or newer-generation drug-eluting stents (n-DES). BACKGROUND Notwithstanding the available evidence from a few randomized clinical trials and meta-analyses, the best device for PCI in patients with small-vessel coronary artery disease is not yet established. METHODS The study included all consecutive patients with de novo lesions in small coronary vessels undergoing PCI in Sweden from April 2009 to July 2017. A small coronary vessel was defined by a device diameter <= 2.5 mm. The primary outcomes were restenosis and definite target lesion thrombosis at 3-year follow-up. The secondary outcomes were the occurrence of all-cause death and myocardial infarction. RESULTS The study population included 14,788 patients: 1,154 treated with DCBs and 13,634 with n-DES. Overall, 35,541 PCIs were performed using 2,503 DCBs and 33,038 n-DES. The propensity score-adjusted regression analysis showed a significantly higher risk for restenosis in the DCB group compared with the n-DES group (adjusted hazard ratio [HR]: 2.027; 95% confidence interval [CI]: 1.537 to 2.674). Conversely, no difference in the risk for target lesion thrombosis (adjusted HR: 0.741; 95% CI: 0.412 to 1.331) was detected. The risk for all-cause death (adjusted HR: 1.178; 95% CI: 0.992 to 1.399) and myocardial infarction (adjusted HR: 1.251; 95% CI: 0.960 to 1.629) was comparable between groups. CONCLUSIONS Because of the significantly higher risk for restenosis up to 3 years, this research suggests that DCBs are not an equally effective alternative to n-DES for percutaneous treatment of small coronary vessels. (C) 2020 by the American College of Cardiology Foundation.
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| 23. |
- Tjerkaski, Jonathan, et al.
(författare)
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Comparison between ticagrelor and clopidogrel in myocardial infarction patients with high bleeding risk
- 2023
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Ingår i: European Heart Journal - Cardiovascular Pharmacotherapy. - : Oxford University Press. - 2055-6837 .- 2055-6845. ; 9:7, s. 627-635
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Tidskriftsartikel (refereegranskat)abstract
- Aims: Ticagrelor is associated with a lower risk of ischemic events than clopidogrel. However, it is uncertain whether the benefits of more intensive anti-ischemic therapy outweigh the risks of major bleeding in patients who have a high bleeding risk (HBR). Therefore, this study compared ticagrelor and clopidogrel in myocardial infarction (MI) patients with HBR.Methods and results: This study included all patients enrolled in the SWEDEHEART registry who were discharged with dual antiplatelet therapy using ticagrelor or clopidogrel following MI between 2010 and 2017. High bleeding risk was defined as a PRECISE-DAPT score & GE;25. Information on ischemic events, major bleeding, and mortality was obtained from national registries, with 365 days of follow-up. Additional outcomes include major adverse cardiovascular events (MACE), a composite of MI, stroke and all-cause mortality, and net adverse clinical events (NACE), a composite of MACE and bleeding. This study included 25 042 HBR patients, of whom 11 848 were treated with ticagrelor. Ticagrelor was associated with a lower risk of MI, stroke, and MACE, but a higher risk of bleeding compared to clopidogrel. There were no significant differences in mortality and NACE. Additionally, when examining the relationship between antiplatelet therapy and bleeding risk in 69 040 MI patients, we found no statistically significant interactions between the PRECISE-DAPT score and treatment effect.Conclusions: We observed no difference in NACE when comparing ticagrelor and clopidogrel in HBR patients. Moreover, we found no statistically significant interactions between bleeding risk and the comparative effectiveness of clopidogrel and ticagrelor in a larger population of MI patients.
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| 24. |
- Träff, Erik, et al.
(författare)
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Real-world data on potent P2Y12-inhibition in patients with suspected chronic coronary syndrome, referred for coronary angiography
- 2022
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Ingår i: Cardiology. - : Karger. - 0008-6312 .- 1421-9751. ; 147:5-6, s. 486-496
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Tidskriftsartikel (refereegranskat)abstract
- IntroductionPotential benefit with potent platelet inhibition in patients with chronic coronary syndrome (CCS), undergoing percutaneous coronary intervention (PCI) has been discussed. The aim of this study was to compare a potent P2Y12 inhibition strategy using ticagrelor with clopidogrel, in CCS patients referred for coronary angiography (CA) and PCI if feasible. MethodsIn this retrospective real-world study, patients referred for outpatient CA due to suspected CCS were included. To adjust for group differences, a propensity score reflecting the probability of being treated with ticagrelor was calculated and added to the logistic regression outcome model.Results In total 1 003 patients were included in the primary analysis (577 treated with clopidogrel and 426 with ticagrelor). Among clopidogrel treated patients 132 (22.9%) experienced a bleeding complication compared with 93 (21.8%) among ticagrelor treated patients, with no significant difference between the groups (p=0.70). There was no difference in bleeding severity. Furthermore, we observed no statistically significant difference in major adverse cardiovascular event (MACE [death, stent thrombosis, myocardial infarction or stroke]), (1.2% vs 2.3%, p=0.17). A subgroup analysis restricted to patients undergoing PCI ad hoc displayed a similar pattern. Also patients undergoing CA without PCI ad hoc frequently experienced a bleeding complication, with no difference between the two treatments (21.0 % vs 17.3%, p=0.27). Propensity score adjusted analyses confirmed the results. Discussion/ConclusionIn patients with CCS referred for CA and PCI if feasible, a more potent P2Y12 inhibition strategy with ticagrelor was not associated with bleeding complications or MACE compared with clopidogrel.
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| 25. |
- Venetsanos, Dimitrios, et al.
(författare)
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Association between gender and short-term outcome in patients with ST elevation myocardial infraction participating in the international, prospective, randomised Administration of Ticagrelor in the catheterisation Laboratory or in the Ambulance for New ST elevation myocardial Infarction to open the Coronary artery (ATLANTIC) trial: a prespecified analysis
- 2017
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Ingår i: BMJ Open. - : BMJ PUBLISHING GROUP. - 2044-6055. ; 7:9
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Tidskriftsartikel (refereegranskat)abstract
- Objectives To evaluate gender differences in outcomes in patents with ST-segment elevation myocardial infarction (STEMI) planned for primary percutaneous coronary intervention (PPCI). Settings A prespecified gender analysis of the multicentre, randomised, double-blind Administration of Ticagrelor in the catheterisation Laboratory or in the Ambulance for New ST elevation myocardial Infarction to open the Coronary artery. Participants Between September 2011 and October 2013, 1862 patients with STEMI and symptom duration amp;lt;6 hours were included. Interventions Patients were assigned to prehospital versus in-hospital administration of 180 mg ticagrelor. Outcomes The main objective was to study the association between gender and primary and secondary outcomes of the main study with a focus on the clinical efficacy and safety outcomes. Primary outcome: the proportion of patients who did not have 70% resolution of ST-segment elevation and did not meet the criteria for Thrombolysis In Myocardial Infarction (TIMI) flow 3 at initial angiography. Secondary outcome: the composite of death, MI, stent thrombosis, stroke or urgent revascularisation and major or minor bleeding at 30 days. Results Women were older, had higher TIMI risk score, longer prehospital delays and better TIMI flow in the infarct-related artery. Women had a threefold higher risk for all-cause mortality compared with men (5.7% vs 1.9%, HR 3.13, 95% CI 1.78 to 5.51). After adjustment, the difference was attenuated but remained statistically significant (HR 2.08, 95% CI 1.03 to 4.20). The incidence of major bleeding events was twofold to threefold higher in women compared with men. In the multivariable model, female gender was not an independent predictor of bleeding (Platelet Inhibition and Patient Outcomes major HR 1.45, 95% CI 0.73 to 2.86, TIMI major HR 1.28, 95% CI 0.47 to 3.48, Bleeding Academic Research Consortium type 3-5 HR 1.45, 95% CI 0.72 to 2.91). There was no interaction between gender and efficacy or safety of randomised treatment. Conclusion In patients with STEMI planned for PPCI and treated with modern antiplatelet therapy, female gender was an independent predictor of short-term mortality. In contrast, the higher incidence of bleeding complications in women could mainly be explained by older age and clustering of comorbidities.
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