Balloon predilation or direct valve implantation in TAVI for women: Insights from the DIRECTAVI study.

BACKGROUND: The randomized DIRECTAVI trial demonstrated safety and feasibility of transcatheter aortic valve implantation (TAVI) without balloon aortic valvuloplasty (BAV) using SAPIEN 3 balloon-expandable devices. However, the female population with smaller anatomy may have potential higher risk of residual gradient and/or mismatch. PURPOSE: We assessed the impact of BAV on the procedural success rate and clinical outcomes in the female population of the DIRECTAVI trial. METHODS: Between May 2016 and May 2018, 91 of the 250 patients included in the DIRECTAVI trial were women (38.6%), 45 of them (49.5%) were enrolled in the BAV group and 46 of them (50.5%) in the direct TAVI group. The primary endpoint was procedural success rate in women (Valve Academic Research Consortium-2 criteria). The secondary endpoint included evaluation of PPM and 1-month major adverse events according to the implantation stategy in women and comparison between men and women regarding major endpoints. RESULTS: The primary endpoint occurred in 29 women (64.4%) in the BAV group and in 34 women (73.9%) in the direct TAVI group (mean difference 9.47%; 95% confidence interval: 6.5%-25.4%; p = 0.045 for non-inferiority of the direct strategy). One-month major adverse events were similar between the 2 women groups. Procedural success was lower in women vs men (p = 0.01) due to higher incidence of moderate mismatches in women (p = 0.001) but with no significant difference regarding the implantation strategy (p = 0.4). CONCLUSION: Direct implantation of the balloon-expandable SAPIEN 3 valve was non-inferior to predilatation on procedural success in women. Incidence of moderate mismatch was higher in women but was not related to the implantation strategy.

Three-Year Outcomes With Fractional Flow Reserve-Guided or Angiography-Guided Multivessel Percutaneous Coronary Intervention for Myocardial Infarction.

BACKGROUND: In patients with multivessel disease with successful primary percutaneous coronary intervention for ST-segment-elevation myocardial infarction, the FLOWER-MI trial (Flow Evaluation to Guide Revascularization in Multivessel ST-Elevation Myocardial Infarction) showed that a fractional flow reserve (FFR)-guided strategy was not superior to an angiography-guided strategy for treatment of noninfarct-related artery lesions regarding the 1-year risk of death from any cause, myocardial infarction, or unplanned hospitalization leading to urgent revascularization. The extension phase of the trial was planned using the same primary outcome to determine whether a difference in outcomes would be observed with a longer follow-up. METHODS: In this multicenter trial, we randomly assigned patients with ST-segment-elevation myocardial infarction and multivessel disease with successful percutaneous coronary intervention of the infarct-related artery to receive complete revascularization guided by either FFR (n=586) or angiography (n=577). RESULTS: After 3 years, a primary outcome event occurred in 52 of 498 patients (9.40%) in the FFR-guided group and in 44 of 502 patients (8.17%) in the angiography-guided group (hazard ratio, 1.19 [95% CI, 0.79-1.77]; P=0.4). Death occurred in 22 patients (4.00%) in the FFR-guided group and in 23 (4.32%) in the angiography-guided group (hazard ratio, 0.96 [95% CI, 0.53-1.71]); nonfatal myocardial infarction in 23 (4.13%) and 14 (2.56%), respectively (hazard ratio, 1.63 [95% CI, 0.84-3.16]); and unplanned hospitalization leading to urgent revascularization in 21 (3.83%) and 18 (3.36%; hazard ratio, 1.15 [95% CI, 0.61-2.16]), respectively. CONCLUSIONS: Although event rates in the trial were lower than expected, in patients with ST-segment-elevation myocardial infarction undergoing complete revascularization, an FFR-guided strategy did not have a significant benefit over an angiography-guided strategy with respect to the risk of death, myocardial infarction, or urgent revascularization up to 3 years. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: NCT02943954.

Association of Use and Dose of Lipid-Lowering Therapy Post Acute Myocardial Infarction With 5-Year Survival in Older Adults.

BACKGROUND: Older people are underrepresented in randomized trials. The association between lipid-lowering therapy (LLT) and its intensity after acute myocardial infarction and long-term mortality in this population deserves to be assessed. METHODS: The FAST-MI (French Registry of Acute ST-Elevation or Non-ST-Elevation Myocardial Infarction) program consists of nationwide French surveys including all patients admitted for acute myocardial infarction ≤48 hours from onset over a 1- to 2-month period in 2005, 2010, and 2015, with long-term follow-up. Numerous data were collected and a centralized 10-year follow-up was organized. The present analysis focused on the association between prescription of LLT (atorvastatin ≥40 mg or equivalent, or any combination of statin and ezetimibe) and 5-year mortality in patients aged ≥80 years discharged alive. Cox multivariable analysis and propensity score matching were used to adjust for baseline differences. RESULTS: Among the 2258 patients aged ≥80 years (mean age, 85±4 years; 51% women; 39% ST-segment elevation myocardial infarction; 58% with percutaneous coronary intervention), 415 were discharged without LLT (18%), 866 with conventional doses (38%), and 977 with high-dose LLT (43%). Five-year survival was 36%, 47.5%, and 58%, respectively. Compared with patients without LLT, high-dose LLT was significantly associated with lower 5-year mortality (adjusted hazard ratio, 0.78 [95% CI, 0.66-0.92]), whereas conventional-intensity LLT was not (adjusted hazard ratio, 0.93 [95% CI, 0.80-1.09]). In propensity score-matched cohorts (n=278 receiving high-intensity LLT and n=278 receiving no statins), 5-year survival was 52% with high-intensity LLT at discharge and 42% without statins (hazard ratio, 0.78 [95% CI, 0.62-0.98]). CONCLUSIONS: In these observational cohorts, high-intensity LLT at discharge after acute myocardial infarction was associated with reduced all-cause mortality at 5 years in an older adult population. These results suggest that high-intensity LLT should not be denied to patients on the basis of old age. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifiers: NCT00673036, NCT01237418, and NCT02566200.

Ticagrelor vs Clopidogrel for Complex Percutaneous Coronary Intervention in Chronic Coronary Syndrome.

BACKGROUND: Whether ticagrelor in chronic coronary syndrome patients undergoing complex percutaneous coronary intervention (PCI) can prevent cardiovascular events is unknown. OBJECTIVES: The authors sought to evaluate outcomes of complex PCI and the efficacy of ticagrelor vs clopidogrel in stable patients randomized in the ALPHEUS (Assessment of Loading with the P2Y12 inhibitor ticagrelor or clopidogrel to Halt ischemic Events in patients Undergoing elective coronary Stenting) trial. METHODS: All PCI procedures were blindly reviewed and classified as complex if they had at least 1 of the following criteria: stent length >60 mm, 2-stent bifurcation, left main, bypass graft, chronic total occlusion, use of atherectomy or guiding catheter extensions, multiwire technique, multiple stents. The primary endpoint was a composite of type 4a or b myocardial infarction (MI) and major myocardial injury during the 48 hours after PCI. We compared the event rates according to the presence or not of complex PCI criteria and evaluated the interaction with ticagrelor or clopidogrel. RESULTS: Among the 1,866 patients randomized, 910 PCI (48.3%) were classified as complex PCI. The primary endpoint was more frequent in complex PCI (45.6% vs 26.6%; P < 0.001) driven by higher rates of type 4 MI and angiographic complications (12.2% vs 4.8 %; P < 0.001 and 19.3% vs 8.6%; P < 0.05, respectively). The composite of death, MI, and stroke at 48 hours (12.7% vs 5.1 %; P < 0.05) and at 30 days (13.4% vs 5.3%; P < 0.05) was more frequent in complex PCI. No interaction was found between PCI complexity and the randomized treatment for the primary endpoint (Pinteraction = 0.47) nor the secondary endpoints. CONCLUSIONS: In chronic coronary syndrome, patients undergoing a complex PCI have higher rates of periprocedural and cardiovascular events that are not reduced by ticagrelor as compared with clopidogrel.

Clinical effects of permanent pacemaker implantation after transcatheter aortic valve implantation: Insights from the nationwide FRANCE-TAVI registry.

BACKGROUND: The influence of permanent pacemaker implantation upon outcomes after transcatheter aortic valve implantation (TAVI) remains controversial. AIMS: To evaluate the impact of permanent pacemaker implantation after TAVI on short- and long-term mortality, and on the risk of hospitalization for heart failure. METHODS: Data from the large FRANCE-TAVI registry, linked to the French national health single-payer claims database, were analysed to compare 30-day and long-term mortality rates and hospitalization for heart failure rates among patients with versus without permanent pacemaker implantation after TAVI. Multivariable regressions were performed to adjust for confounders. RESULTS: A total of 36,549 patients (mean age 82.6years; 51.6% female) who underwent TAVI from 2013 to 2019 were included in the present analysis. Among them, 6999 (19.1%) received permanent pacemaker implantation during the index hospitalization, whereas 232 (0.6%) underwent permanent pacemaker implantation between hospital discharge and 30days after TAVI, at a median of 11 (interquartile range: 7-18) days. In-hospital permanent pacemaker implantation was not associated with an increased risk of death between discharge and 30days (adjusted odds ratio: 0.91, 95% confidence interval: 0.64-1.29). At 5years, the incidence of all-cause death was higher among patients with versus without permanent pacemaker implantation within 30days of the procedure (adjusted hazard ratio: 1.13, 95% confidence interval: 1.07-1.19). Permanent pacemaker implantation within 30days of TAVI was also associated with a higher 5-year rate of hospitalization for heart failure (adjusted subhazard ratio: 1.17, 95% confidence interval: 1.11-1.23). CONCLUSIONS: Permanent pacemaker implantation after TAVI is associated with an increased risk of long-term hospitalization for heart failure and all-cause mortality. Further research to mitigate the risk of postprocedural permanent pacemaker implantation is needed as TAVI indications expand to lower-risk patients.

Flecainide to prevent atrial arrhythmia after patent foramen ovale closure, Rationale and design of the randomized AFLOAT study.

INTRODUCTION: Atrial arrhythmia is the most common complication of patent foramen ovale (PFO) closure. The real incidence of post-PFO closure atrial arrhytmia and whether this complication can be prevented is unknown. METHODS/DESIGN: The Assessment of Flecainide to Lower the PFO closure risk of Atrial fibrillation or Tachycardia (AFLOAT) trial is a prospective, national, multicentre, randomized, open-label, superiority trial with a blind evaluation of all the endpoints (PROBE design). A total of 186 patients are randomized in a 1:1:1 ratio immediately after PFO closure to receive Flecainide (150 mg per day in a single sustained-release (SR) dose) for 6 months (Group 1), Flecainide (150 mg per day in a single SR dose) for 3 months (Group 2), or no additional treatment (standard of care) for 6 months (Group 3). The primary endpoint is the percentage of patients with at least one episode of symptomatic or asymptomatic atrial arrhythmia episode (≥30 s) recorded within 3 months after PFO closure on long-term monitoring with an insertable cardiac monitor. Whether 3 months of treatment is sufficient compared to 6 months will be analysed as a secondary objective of the study. CONCLUSION: AFLOAT is the first trial to test the hypothesis that a short treatment with oral Flecainide can prevent the new-onset of atrial arrhythmia after PFO closure. CLINICAL TRIAL REGISTRATION: NCT05213104 (clinicaltrials.gov).

Long-term follow-up of balloon-expandable valves according to the implantation strategy: insight from the DIRECTAVI trial.

BACKGROUND: Safety and feasibility of transcatheter aortic valve replacement (TAVR) without balloon aortic valvuloplasty (BAV) using the SAPIEN 3 balloon-expandable device has been previously demonstrated. The impact on long-term valve hemodynamic performances and outcomes remains however unknown. We evaluate long-term clinical and hemodynamic results according to the implant strategy (direct TAVR vs BAV pre-TAVR) in patients included in the DIRECTAVI randomized trial (NCT02729519). METHODS: Clinical and echocardiographic follow-up until January 2023 was performed for all patients included in the DIRECTAVI trial since 2016 (n = 228). The primary endpoint was incidence of moderate/severe hemodynamic valve deterioration (HVD), according to the Valve Academic Research defined Consortium-3 criteria (increase in mean gradient ≥10 mmHg resulting in a final mean gradient ≥20 mmHg, or new/worsening aortic regurgitation of 1 grade resulting in ≥ moderate aortic regurgitation). RESULTS: Median follow-up was 3.8 (2.2-4.7) years. Mean age at follow-up was 87 ± 6.7 years. No difference in incidence of HVD in the direct implantation group compared to the BAV group was found (incidence of 1.97 per 100 person-years and 1.45 per 100 person-years, respectively, P = 0.6). Prevalence of predicted prothesis-patient mismatch was low (n = 13 [11.4%] in the direct TAVR group vs n = 15 [13.2%] in BAV group) and similar between both groups (P = .7). Major outcomes including death, stroke, hospitalization for heart failure and pacemaker implantation were similar between both groups, (P = .4, P = .7, P = .3, and P = .3 respectively). CONCLUSION: Direct implantation of the balloon-expandable device in TAVR was not associated with an increased risk of moderate/severe HVD or major outcomes up to 6-year follow-up. These results guarantee wide use of direct balloon-expandable valve implantation, when feasible. CLINICAL TRIALS REGISTRATION NUMBER: NCT05140317.

P2Y12 Inhibitor Loading Time Before Elective PCI and the Prevention of Myocardial Necrosis.

BACKGROUND: There are dated and conflicting data about the optimal timing of initiation of P2Y12 inhibitors in elective percutaneous coronary intervention (PCI). Peri-PCI myocardial necrosis is associated with poor outcomes. We aimed to assess the impact of the P2Y12 inhibitor loading time on periprocedural myocardial necrosis in the population of the randomized Assessment of Loading With the P2Y12 Inhibitor Ticagrelor or Clopidogrel to Halt Ischemic Events in Patients Undergoing Elective Coronary Stenting (ALPHEUS) trial, which compared ticagrelor with clopidogrel in high-risk patients who received elective PCI. METHODS: The ALPHEUS trial divided 1809 patients into quartiles of loading time. The ALPHEUS primary outcome was used (type 4 [a or b] myocardial infarction or major myocardial injury) as well as the main secondary outcome (type 4 [a or b] myocardial infarction or any type of myocardial injury). RESULTS: Patients in the first quartile group (Q1) presented higher rates of the primary outcome (P = 0.01). When compared with Q1, incidences of the primary outcome decreased in patients with longer loading times (adjusted odds ratio [adjOR], 0.70 [0.52.-0.95]; P = 0.02 for Q2; adjOR 0.65 [0.48-0.88]; P < 0.01 for Q3; adjOR 0.66 [0.49-0.89]; P < 0.01 for Q4). Concordant results were found for the main secondary outcome. There was no interaction with the study drug allocated by randomization (clopidogrel or ticagrelor). Bleeding complications (any bleeding ranging between 4.9% and 7.3% and only 1 major bleeding at 48 hours) and clinical ischemic events were rare and did not differ among groups. CONCLUSIONS: In elective PCI, administration of the oral P2Y12 inhibitor at the time of PCI could be associated with more frequent periprocedural myocardial necrosis than an earlier administration. The long-term clinical consequences remain unknown.

One year results of coronary bifurcation revascularization with the re-POT provisional sequential technique. The CABRIOLET registry.

BACKGROUND: Re-POT (proximal optimization technique (POT)) is a simple provisional sequential technique for percutaneous coronary bifurcation revascularization with better arterial geometry respect compared to classical techniques. Re-POT has demonstrated excellent mechanical and short-term clinical results. The multicenter CABRIOLET registry (NCT03550196) evaluate the long-term clinical benefit of the re-POT sequence in non-selected patients. METHODS: All consecutive patients presenting a coronary bifurcation lesion for which provisional stenting was indicated were included in 5 european centers. Re-POT strategy was systematically attempted. The primary endpoint was target lesion failure (TLF), comprising cardiac death, myocardial infarction, stent thrombosis and target lesion revascularization (TLR) at 12 months' follow-up. The secondary endpoints were the individual components of the primary endpoint, all-cause death, target vessel failure (TVF) and target vessel revascularization (TVR). Complex bifurcation was defined as Medina 0.1.1 or 1.1.1. RESULTS: A total of 500 patients aged 67.7 ± 11.7 years, 78.4% male, were included from 2015 to 2019, 174 of whom (34.8%) were considered having complex bifurcation lesions. Bifurcations involved the left main in 35.2% of cases. The full re-POT sequence was systematically performed in all cases. At 1 year, TLF was 2.0% (1.7% in complex vs. 2.1% in non-complex bifurcation; p = NS), and TLR was 1.6%, (1.1% vs. 1.8% respectively; p = NS). TVF and TVR rates were 3.2% and 2.8%. On multivariate analysis, only multivessel disease was predictive of TLF at 1 year (OR = 1.66 (1.09-2.53), p = 0.02). CONCLUSIONS: In this large prospective all-comer registry, provisional stenting with re-POT technique appeared safe and effective at 1 year, without anatomical bifurcation restriction.

The France PCI registry: Design, methodology and key findings.

BACKGROUND: Obstructive coronary artery disease is the main cause of death worldwide. By tracking events and gaining feedback on patient management, the most relevant information is provided to public health services to further improve prognosis. AIMS: To create an inclusive and accurate registry of all percutaneous coronary intervention (PCI) procedures performed in France, to assess and improve the quality of care and create research incentives. Also, to describe the methodology of this French national registry of interventional cardiology, and present early key findings. METHODS: The France PCI registry is a multicentre observational registry that includes consecutive patients undergoing coronary angiography and/or PCI. The registry was set up to provide online data analysis and structured reports of PCI activity, including process of care measures and assessment of risk-adjusted outcomes in all French PCI centres that are willing to participate. More than 150 baseline data items, describing demographic status, PCI indications and techniques, and in-hospital and 1-year outcomes, are captured into local reporting software by medical doctors and local research technicians, with subsequent encryption and internet transfer to central data servers. Annual activity reports and scoring tools available on the France PCI website enable users to benchmark and improve clinical practices. External validation and consistency assessments are performed, with feedback of data completeness to centres. RESULTS: Between 01 January 2014 and 31 December 2022, participating centres increased from six to 47, and collected 364,770 invasive coronary angiograms and 176,030 PCIs, including 54,049 non-ST-segment elevation myocardial infarction cases and 31,631 ST-segment elevation myocardial infarction cases. Fifteen studies stemming from the France PCI registry have already been published. CONCLUSIONS: This fully electronic, daily updated, high-quality, low-cost, national registry is sustainable, and is now expanding. Merging with medicoeconomic databases and nested randomized scientific studies are ongoing steps to expand its scientific potential.

Pharmacological coronary spasm provocative testing in clinical practice: A French Coronary Atheroma and Interventional Cardiology Group (GACI) position paper.

Vasospastic angina, also described as Prinzmetal angina, was first described as a variant form of angina at rest with transient ST-segment elevation; it is common and present in many clinical scenarios, including chronic and acute coronary syndromes, sudden cardiac death, arrhythmia and syncope. However, vasospastic angina remains underdiagnosed, and provocative tests are rarely performed. The gold-standard diagnostic approach uses invasive coronary angiography to induce coronary spasm using ergonovine, methylergonovine or acetylcholine as provocative stimuli. The lack of uniform protocol decreases the use and performance of these tests, accounting for vasospastic angina underestimation. This position paper from the French Coronary Atheroma and Interventional Cardiology Group (GACI) aims to review the indications for provocative tests, the testing conditions, drug protocols and positivity criteria.

Rationale and design of the direct oral anticoagulants for prevention of left ventricular thrombus after anterior acute myocardial infarction (APERITIF) trial.

BACKGROUND: Anterior acute myocardial infarction (AMI) is associated with an increased risk of left ventricular (LV) thrombus formation. We hypothesized that adding low-dose oral rivaroxaban to the usual antiplatelet regimen would reduce the risk of LV thrombus in patients with large AMI. STUDY DESIGN: APERITIF is an investigator-initiated, multicenter randomized open-label, blinded end-point (PROBE) trial, nested in the ongoing "FRENCHIE" registry, a French multicenter prospective observational study, in which all consecutive patients admitted within 48 hours of symptom onset in a cardiac Intensive Care Unit (ICU) for AMI are included (NCT04050956). Among them, patients with anterior ST-elevation-myocardial infarction (STEMI) or very high-risk non- ST-elevation-myocardial infarction (NSTEMI) patients with involvement of the left anterior descending artery are randomized into 2 groups: Dual Antiplatelet Therapy (DAPT) alone or DAPT plus rivaroxaban 2.5mg twice daily for 4 weeks, started as soon as possible after completion of the initial percutaneous coronary intervention/angiography procedure. The primary endpoint is the presence of LV thrombus at 1 month, as detected by contrast enhanced CMR (CE-CMR). Secondary endpoints include LV thrombus dimension (greatest diameter), the rate of major bleedings and major cardiovascular events at 1 month. Based on estimated event rates, a sample size of 560 patients is needed to show superiority of DAPT plus rivaroxaban therapy versus DAPT alone, with 80% power. CONCLUSION: The APERITIF trial will determine whether, in patients with large AMIs, the use of rivaroxaban 2.5mg twice daily in addition to DAPT reduces LV thrombus formation, compared with DAPT alone. CLINICALTRIALS: gov Identifier: NCT05077683.

Biodegradable-Polymer or Durable-Polymer Stents in Patients at High Bleeding Risk: A Randomized, Open-Label Clinical Trial.

BACKGROUND: Limited information is available on the comparative efficacy and safety of different stent platforms in patients at high bleeding risk undergoing an abbreviated dual antiplatelet therapy duration after percutaneous coronary intervention (PCI). The aim of this study was to compare the safety and effectiveness of the biodegradable-polymer sirolimus-eluting stent with the durable-polymer zotarolimus-eluting stent in patients at high bleeding risk receiving 1 month of dual antiplatelet therapy after PCI. METHODS: The Bioflow-DAPT Study is an international, randomized, open-label trial conducted at 52 interventional cardiology hospitals in 18 countries from February 24, 2020, through September 20, 2021. Patients with a clinical indication to PCI because of acute or chronic coronary syndrome who fulfilled 1 or more criteria for high bleeding risk were eligible for enrollment. Patients were randomized to receive either biodegradable-polymer sirolimus-eluting stents or durable-polymer, slow-release zotarolimus-eluting stents after successful lesion preparation, followed by 1 month of dual antiplatelet therapy and thereafter single antiplatelet therapy. The primary outcome was the composite of death from cardiac causes, myocardial infarction, or stent thrombosis at 1 year, and was powered for noninferiority, with an absolute margin of 4.1% at 1-sided 5% alpha. RESULTS: A total of 1948 patients at high bleeding risk were randomly assigned (1:1) to receive biodegradable-polymer sirolimus-eluting stents (969 patients) or durable-polymer zotarolimus-eluting stents (979 patients). At 1 year, the primary outcome was observed in 33 of 969 patients (3.6%) in the biodegradable-polymer sirolimus-eluting stent group and in 32 of 979 patients (3.4%) in the durable-polymer zotarolimus-eluting stent group (risk difference, 0.2 percentage points; upper boundary of the 1-sided 95% CI, 1.8; upper boundary of the 1-sided 97.5% CI, 2.1; P<0.0001 for noninferiority for both tests). CONCLUSIONS: Among patients at high risk for bleeding who received 1 month of dual antiplatelet therapy after PCI, the use of biodegradable-polymer sirolimus-eluting stents was noninferior to the use of durable-polymer zotarolimus-eluting stents with regard to the composite of death from cardiac causes, myocardial infarction, or stent thrombosis. REGISTRATION: URL: https://www. CLINICALTRIALS: gov; Unique identifier: NCT04137510.

Identification of Low- versus High-Risk Acute Coronary Syndrome for a Selective ECG Monitoring Strategy.

BACKGROUND: While admission of patients with acute coronary syndromes (ACS) in cardiology intensive care unit (CICU) is usual, in-hospital major outcomes in lower risk patients may be evaluated after early coronary angiography according to the European guidelines. METHODS: Consecutive ACS patients were prospectively included after coronary angiography evaluation within 24 h and percutaneous coronary intervention (PCI), when required. Patients were classified as high- or low-risk according to hemodynamics, rhythmic state, ischemic and bleeding risks. Major in-hospital outcomes were assessed. RESULTS: From January to June 2021, 277 patients were enrolled (62.8% with ST-segment elevation myocardial infarction (STEMI) (n = 174); 37.2% with non-NSTEMI (NSTEMI) (n = 103). PCI was required for 260 patients (93.9%). Seventy-four patients (26.7%) were classified as low-risk (n = 47 NSTEMI; n= 27 STEMI) and 203 patients (73.3%) as high-risk of events. All patients were monitored in CICU. While 38 patients (18.7%) from the high-risk group reached the primary endpoint, mainly related to rhythmic or conduction disorder (n = 24, 11.8%) or unstable hemodynamics (n = 17; 8.4%), only 1 patient (1.3%) in the low-risk group had one major outcome (no fatal bleeding); p < 0.01. The negative predictive value of our patient stratification for the absence of major in-hospital outcome was 100% (CI95%: 100-100%) for STEMI and 97.9% [CI95%: 93.2-100%] for NSTEMI patients. CONCLUSIONS: Stratification of ACS patients after early coronary angiography and most of the time PCI, identify a population with very low risk of in-hospital events (1/4 of all ACS and 1/2 of NSTEMI) who may probably not require ECG monitoring and/or CICU admission. (NCT04378504).

Design and Rationale of the BIOFLOW-DAPT Trial: a Prospective, Randomized, Multicenter Study to Assess the Safety of the Orsiro Mission Stent Compared to the Resolute Onyx Stent in Subjects at High Risk for Bleeding in Combination with 1-Month Dual Antiplatelet Therapy.

The optimal duration of dual antiplatelet therapy (DAPT) in high bleeding risk (HBR) patients undergoing percutaneous coronary intervention (PCI) with implantation of the Orsiro Mission stent remains unclear. The BIOFLOW-DAPT (clinicaltrials.gov, NCT04137510) trial is a prospective, multi-center, randomized controlled study designed to assess the safety of the Orsiro Mission versus the Resolute Onyx stent in HBR patients. Patients are treated with DAPT (aspirin and a P2Y12 inhibitor) for 1 month, followed by a single antiplatelet therapy (SAPT). The primary endpoint is the composite of cardiac death, myocardial infarction, and definite or probable stent thrombosis at 1 year. With a final sample size of 1948 HBR patients, this study is powered to assess the noninferiority of the Orsiro Mission stent with respect to the primary study endpoint. The BIOFLOW-DAPT is the first randomized clinical trial investigating 1-month DAPT duration in HBR patients after implantation of the Orsiro Mission stent.Trial Registration: ClinicalTrials.gov number, NCT04137510 Study design and key features. Patient selection starts before the index PCI, when consented patients will be randomized to the Orsiro Mission or the Resolute Onyx stent with mandated 1-month DAPT. At 1 month, eligibility is reassessed and if met, patients will discontinue DAPT and continue with P2Y12 inhibitor or aspirin monotherapy. PCI, percutaneous coronary intervention; DAPT, dual antiplatelet therapy; DES, drug-eluting stent; HBR, high bleeding risk; P2Y12i, P2Y12 inhibitor; ST, stent thrombosis.

Abbreviated or Standard Antiplatelet Therapy in HBR Patients: Final 15-Month Results of the MASTER-DAPT Trial.

BACKGROUND: Clinical outcomes and treatment selection after completing the randomized phase of modern trials, investigating antiplatelet therapy (APT) after percutaneous coronary intervention (PCI), are unknown. OBJECTIVES: The authors sought to investigate cumulative 15-month and 12-to-15-month outcomes after PCI during routine care in the MASTER DAPT trial. METHODS: The MASTER DAPT trial randomized 4,579 high bleeding risk patients to abbreviated (n = 2,295) or standard (n = 2,284) APT regimens. Coprimary outcomes were net adverse clinical outcomes (NACE) (all-cause death, myocardial infarction, stroke, and BARC 3 or 5 bleeding); major adverse cardiac and cerebral events (MACCE) (all-cause death, myocardial infarction, and stroke); and BARC type 2, 3, or 5 bleeding. RESULTS: At 15 months, prior allocation to a standard APT regimen was associated with greater use of intensified APT; NACE and MACCE did not differ between abbreviated vs standard APT (HR: 0.92 [95% CI: 0.76-1.12]; P = 0.399 and HR: 0.94 [95% CI: 0.76-1.17]; P = 0.579; respectively), as during the routine care period (HR: 0.81 [95% CI: 0.50-1.30]; P = 0.387 and HR: 0.74 [95% CI: 0.43-1.26]; P = 0.268; respectively). BARC 2, 3, or 5 was lower with abbreviated APT at 15 months (HR: 0.68 [95% CI: 0.56-0.83]; P = 0.0001) and did not differ during the routine care period. The treatment effects during routine care were consistent with those observed within 12 months after PCI. CONCLUSIONS: At 15 months, NACE and MACCE did not differ in the 2 study groups, whereas the risk of major or clinically relevant nonmajor bleeding remained lower with abbreviated compared with standard APT. (Management of High Bleeding Risk Patients Post Bioresorbable Polymer Coated Stent Implantation With an Abbreviated Versus Prolonged DAPT Regimen [MASTER DAPT]; NCT03023020).

A prospective study comparing short versus standard dual antiplatelet therapy in patients with acute myocardial infarction: design and rationale of the TARGET-FIRST trial.

Based on the latest knowledge and technological advancements, it is still debatable whether a modern revascularisation approach in the setting of acute myocardial infarction (AMI), including complete revascularisation (in patients with significant non-culprit lesions) with newer-generation highly biocompatible drug-eluting stents, requires prolonged dual antiplatelet therapy (DAPT). TARGET-FIRST (ClinicalTrials.gov: NCT04753749) is a prospective, open-label, multicentre, randomised controlled study comparing short (one month) DAPT versus standard (12 months) DAPT in a population of patients with non-ST/ST-segment elevation myocardial infarction, completely revascularised at index or staged procedure (within 7 days), using Firehawk, an abluminal in-groove biodegradable polymer rapamycin-eluting stent. The study will be conducted at approximately 50 sites in Europe. After a mandatory 30-40 days of DAPT with aspirin and P2Y12 inhibitors (preferably potent P2Y12 inhibitors), patients are randomised (1:1) to 1) immediate discontinuation of DAPT followed by P2Y12 inhibitor monotherapy (experimental arm), or 2) continued DAPT with the same regimen (control arm), up until 12 months. With a final sample size of 2,246 patients, the study is powered to evaluate the primary endpoint (non-inferiority of short antiplatelet therapy in completely revascularised patients) for net adverse clinical and cerebral events. If the primary endpoint is met, the study is powered to assess the main secondary endpoint (superiority of short DAPT in terms of major or clinically relevant non-major bleeding). TARGET-FIRST is the first randomised clinical trial to investigate the optimisation of antiplatelet therapy in patients with AMI after achieving complete revascularisation with an abluminal in-groove biodegradable polymer rapamycin-eluting stent implantation.

TIcagrelor in Rotational Atherectomy to Reduce TROPonin Enhancement: The TIRATROP Study, A Randomized Controlled Trial.

BACKGROUND: Because rotational atherectomy (RA) is associated with arterial trauma and platelet activation, patients treated with RA may benefit from more potent antiplatelet drugs. The aim of this trial was to assess the superiority of ticagrelor over clopidogrel in reducing post procedure troponin release. METHODS: TIRATROP (TIcagrelor in Rotational Atherectomy to reduce TROPonin enhancement) is a multicenter double-blind randomized controlled trial that included 180 patients with severe calcified lesions requiring RA who received either clopidogrel (300 mg loading dose, then 75 mg/d) or ticagrelor (loading dose 180 mg then 90 mg twice daily). Blood samples were collected at the beginning (T0), and 6, 12, 18, 24 and 36 h after the procedure. Primary end point was troponin release within the first 24 h using area under the curve analysis (troponin level as a function of time). RESULTS: The mean age of patients was 76 ± 10 years, 35% had diabetes. RA was used to treat 1, 2 or 3 calcified lesions in 72%, 23% and 5% of patients, respectively. Troponin release within the first 24 h was similar in both the ticagrelor (adjusted mean ±SD of ln AUC 8.85 ± 0.33) and the clopidogrel (8.77 ± 0.34, p = 0.60) arms. Independent predictors for troponin enhancement were acute coronary syndrome presentation, renal failure, elevated C-Reactive protein and multiple lesions treated with RA. CONCLUSION: Troponin release did not differ among treatment arms. Our results suggest that greater platelet inhibition does not affect periprocedural myocardial necrosis in the setting of RA.