Clinical Outcomes of Percutaneous Left-Atrial Appendage Occlusion with Conscious Sedation without an Anesthesiologist on Site: Results from a Multicenter Study.

Background and Objectives: Percutaneous left-atrial appendage (LAA) occlusion is an important therapeutic option for preventing cardioembolic stroke in patients with non-valvular atrial fibrillation (AF) at high risk of thromboembolic events and with contraindications for oral anticoagulation (OAC). It is usually performed with transesophageal echocardiography (TOE) guidance under general anesthesia (GA). In this retrospective study, we present a multicenter experience of LAA occlusion performed with conscious sedation (CS) without an anesthesiologist on site. Materials and Methods: All the patients on the waiting list for LAA occlusion procedure at Infermi Hospital, Rivoli, and San Luigi Gonzaga University Hospital, Orbassano, from October 2018 to October 2022 were analyzed. All the procedures were performed with a Watchman/FLX LAA closure device under TOE and fluoroscopic guidance without an anesthesiologist on site. CS was performed with a combination of midazolam and fentanyl as needed. Results: One-hundred fifteen patients were included (age 76.4 ± 7.6 years, median CHA2DS2Vasc 4.4 ± 1.4). CS was performed using midazolam (mean dose 5.9 ± 2.1 mg), adding fentanyl for thirty-nine (33.9%) patients in case of poor tolerance for the procedure despite midazolam. The acute procedural success rate was 99.1%. We observed seven acute severe complications. No patients needed anesthesiological assistance during the procedure, and no cases of respiratory failure necessitating ventilation were reported. In a follow-up after 10 ± 9 months, one case of stroke (0.9%) and one case (0.9%) of transient ischemic attack (TIA) occurred. Conclusions: LAA occlusion performed under CS and without the presence of an anesthesiologist on site appears to be safe and effective. It can be an attractive alternative to general anesthesia (GA), as fewer resources are required.

[Management of ST-elevation myocardial infarction in a patient with aspirin hypersensitivity without oral P2Y12 inhibitors]. / Gestione dell'infarto miocardico con sopraslivellamento del tratto ST in un paziente con ipersensibilità all'aspirina senza l'uso di inibitori orali del recettore P2Y12.

Aspirin hypersensitivity is a neglected issue, especially in the setting of ST-elevation myocardial infarction (STEMI). Nevertheless, in such context a prompt platelet inhibition remains crucial. We report the case of a patient presenting with STEMI, aspirin hypersensitivity and emesis causing inadequate intake of P2Y12 inhibitors managed with intravenous cangrelor therapy and aspirin desensitization. Possible options in the management of aspirin hypersensitivity in the acute phase are discussed. In selected patients with STEMI and aspirin hypersensitivity, particularly in the suspect of suboptimal enteric absorption of P2Y12 inhibitors, the use of cangrelor until aspirin desensitization is completed can be considered; bridge therapy to desensitization with glycoprotein IIb/IIIa inhibitors can be considered on a case by case basis, despite the scarce supporting evidence - bridge therapy with indobufen is not recommended due to the limited literature data.

Ticagrelor or Clopidogrel After an Acute Coronary Syndrome in the Elderly: A Propensity Score Matching Analysis from 16,653 Patients Treated with PCI Included in Two Large Multinational Registries.

PURPOSE: Higher risk of bleeding with ticagrelor over clopidogrel in elderly patients with acute coronary syndrome (ACS) who underwent percutaneous coronary intervention (PCI) has been suggested. We assessed the incidence of major bleedings (MB), reinfarction (re-MI), and all-cause death to evaluate safety and efficacy of ticagrelor versus clopidogrel in such population. METHODS: Real-world registries RENAMI and BleeMACS were merged. The pooled cohort was divided into two groups, clopidogrel versus ticagrelor. Statistical analysis considered patients <75 versus ≥75 years old. Endpoints were BARC 3-5 MB, re-MI, and all-cause death at 1-year follow-up. The study included 16,653 patients (13,153 < 75 and 3500 ≥ 75 years). Ticagrelor was underused in elderly patients (16.3% versus 20.8%, P < 0.001). Using propensity score matching (PSM), two treatment groups of 1566 patients were included in the final analysis. RESULTS: Ticagrelor was able to prevent re-MI (hazard ratio [HR], 0.31; 95% confidence interval [CI], 0.2-0.6; P < 0.001) and all-cause death (HR, 0.60; 95% CI, 0.4-0.9; P = 0.026) irrespective of age. In patients ≥75 years, ticagrelor reduced all-cause death (HR, 0.32; 95% CI, 0.1-0.8; P = 0.012) and re-MI (HR, 0.25; 95% CI, 0.1-1.1, P = 0.072). Moreover, even with the limit of the low number of events, ticagrelor did not significantly increase the incidence of MB (HR, 1.49; 95% CI, 0.70-3.0; P = 0.257). At multiple Cox regression, age (HR, 1.03; 95% CI, 1.02-1.05; P < 0.001) resulted an independent risk factor for bleeding. CONCLUSION: In our study, reflecting the results from two large retrospective, real-world registries, Ticagrelor did not significantly increase MB compared with clopidogrel in elderly patients with ACS treated with PCI, while significantly improving 1-year survival. Further studies on elderly patients are suggested.

P2Y12 inhibitors monotherapy after short course of dual antiplatelet therapy in patients undergoing percutaneous coronary intervention: a meta-analysis of randomized clinical trials including 29 089 patients.

AIMS: Dual antiplatelet therapy (DAPT) reduces the incidence of thrombotic complications at the cost of an increase in bleedings. New antiplatelet therapies focused on minimizing bleeding and maximizing antithrombotic effects are emerging. The aim of this study is to collect the current evidence coming from randomized controlled trials (RCTs) on early aspirin interruption after percutaneous coronary intervention (PCI) and current drug-eluting stent (DES) implantation and to perform a meta-analysis in order to evaluate the safety and efficacy of this strategy. METHODS AND RESULTS: MEDLINE/PubMed was systematically screened for RCTs comparing P2Y12 inhibitors (P2Y12i) monotherapy after a maximum of 3 months of DAPT (S-DAPT) vs. DAPT for 12 months (DAPT) in patients undergoing PCI with DES. Baseline features were appraised. Major adverse cardiac and cerebrovascular events (MACCE: all causes of death, myocardial infarction, and stroke) and its single composites, stent thrombosis (ST) and Bleeding Academic Research Consortium (BARC) type 3 or 5 were considered and pooled with fixed and random-effects with inverse-variance weighting. A total of four RCTs including a total of 29 089 patients were identified. Overall, the majority of included patients suffered a stable coronary artery disease, while ST-elevation myocardial infarction was the least represented clinical presentation. Complex anatomical settings like left main intervention, bifurcations, and multi-lesions treatment were included although representing a minor part of the cases. At 1-year follow-up, MACCE rate was similar [odds ratio (OR) 0.90; 95% confidence intervals (CIs) 0.79-1.03] and any of its composites (all causes of death rate: OR 0.87; 95% CIs 0.71-1.06; myocardial infarction: OR 1.06; 95% CIs 0.90-1.26; stroke: OR 1.12; 95% CIs 0.82-1.53). Similarly, also ST rate was comparable in the two groups (OR 1.17; 95% CIs 0.83-1.64), while BARC 3 or 5 bleeding resulted significantly lower, adopting an S-DAPT strategy (OR 0.70; 95% CIs 0.58-0.86). CONCLUSION: After a PCI with current DES, an S-DAPT strategy followed by a P2Y12i monotherapy was associated with a lower incidence of clinically relevant bleeding compared to 12 months DAPT, with no significant differences in terms of 1-year cardiovascular events.

Comparative external validation of the PRECISE-DAPT and PARIS risk scores in 4424 acute coronary syndrome patients treated with prasugrel or ticagrelor.

BACKGROUND: The PRECISE-DAPT and PARIS risk scores (RSs) were recently developed to help clinicians at individualizing the optimal dual antiplatelet therapy duration (DAPT) after percutaneous coronary intervention (PCI). Nevertheless, external validation of these RSs it has not yet been performed in ACS (acute coronary syndrome) patients treated with prasugrel or ticagrelor in a real- world scenario. METHODS: 4424 ACS patients who underwent PCI and survived to hospital discharge, from January 2012 to December 2016 at 12 European centers, were included. PRECISE-DAPT and PARIS bleeding RS, as well as PARIS ischemic RS, were computed, and their performance at predicting major bleeding (MB; BARC type 3 or 5) and ischemic events (MI and stent thrombosis) during follow up was compared. RESULTS: After a median follow-up of 14 (interquartile range 12-20.9) months, 83 (1.88%) patients developed MB and 133 (3.0%) suffered an ischemic episode. PRECISE-DAPT performed better than PARIS bleeding RS (c-statistic = 0.653 vs. 0.593; p = .01 for comparison) in predicting MB. The RSs performance for MB prediction remained consistent in STEMI patients (c-statistic = 0.632 vs 0.575) or in those treated with prasugrel (c-statistic = 0.623 vs 0.586). PARIS ischemic RS exhibited superior discrimination in predicting ischemic complications compared to PRECISE-DAPT (c-statistic = 0.604 vs 0.568 p = .05 for comparison). CONCLUSION: Our data provide support to the use of PRECISE-DAPT in MB risk stratification for patients receiving DAPT in form of aspirin and prasugrel or ticagrelor whereas the PARIS ischemic RS has potential to complement the risk prediction with respect to ischemic events.

Management of aspirin intolerance in patients undergoing percutaneous coronary intervention. The role of mono-antiplatelet therapy: a retrospective, multicenter, study.

BACKGROUND: The optimal management of patients with aspirin intolerance undergoing stent implantation represents a challenge for physicians. The aim of this study was to assess the overall number of patients discharged with mono antiplatelet therapy after percutaneous coronary intervention (PCI). The most frequent aspirin intolerance symptoms in this population and the overall incidence of patient-oriented composite endpoints (POCE). METHODS: From January 2006 to June 2016 all patients discharged with mono-antiplatelet therapy because of aspirin intolerance/hypersensitivity/allergy and treated by means of PCI were included. Data about percutaneous treatments and aspirin intolerance were collected. POCE were evaluated at a twelve-month clinical follow-up comparing safety and efficacy of clopidogrel monotherapy versus new P2Y12 inhibitors. RESULTS: We collected 70 patients, that is 0.3% of the total amount of PCI in the considered period, 25 (35%) of them were women and the remaining 45 (65%) were men. An acute coronary syndrome (ACS) was the clinical presentation in 47 (67.1%) patients, with NSTEMI in 19 (27.1%) of them. Forty-six patients (65.7%) were treated with clopidogrel and 24 (34.3%) with new P2Y12 inhibitors. At one-year follow-up, 18 (25.7%) patients suffered a new clinically relevant adverse event, 5 (7.1%) died, 3 (4.3%) required a target vessel revascularization and 10 (14.3%) patients a target lesion revascularization. CONCLUSIONS: Our study evaluated patients with ACS or stable coronary artery disease undergoing PCI and treated with mono-antiplatelet therapy with P2Y12 inhibitors due to aspirin intolerance shows a 25% incidence of POCE at one year. Further studies with adequate sample size are required to evaluate the efficacy and safety of mono antiplatelet therapy in this clinical scenario.

Short term outcome following acute phase switch among P2Y12 inhibitors in patients presenting with acute coronary syndrome treated with PCI: A systematic review and meta-analysis including 22,500 patients from 14 studies.

INTRODUCTION: The efficacy and safety of switching P2Y12 receptor antagonists in patients admitted for acute coronary syndrome (ACS) remain unclear. We assessed the short-term clinical outcomes (in-hospital and within 30 days) of switching P2Y12 inhibitor (P2Y12I) drugs versus maintaining the same regimen by performing a comprehensive review and meta-analysis of available data. METHODS: MEDLINE/PubMed/SCOPUS/Cochrane databases were screened for studies regarding switching of P2Y12I in patients with ACS that reported 30 days follow-up. Major cardiac events (MACE) and bleeding were compared between patients who were switched/not switched. RESULTS: 22,500 patients from 14 studies were included. Unstable angina/non-ST elevation myocardial infarction (62.0%, interquartile range, 52.8%-68.0%) was the most common clinical presentation. The total number switched was 4294 (19.1%); escalation in 3416 (79.5%) patients (from clopidogrel to prasugrel, 62.9%) and de-escalation in 18.5%. Pooled analysis revealed no significant differences in MACE for any comparison; risk of bleeding was significantly increased among switched patients overall (odds ratio [OR], 1.60; 95% confidence interval [CI] 1.22-2.10) and increased in the escalation group (OR, 1.51; 95% CI, 1.06-2.16). CONCLUSIONS: Among patients presenting with ACS, switching from one P2Y12I agent to another in the acute phase seems associated with a short-term increased risk of bleeding. Accurate upfront selection and prescription of a P2Y12I based on ischemic and bleeding risks is paramount to avoid adverse events switching-related during hospitalization and in the first 30 days.

[Intravenous epinephrine for anaphylaxis: Kounis or takotsubo syndrome?] / Adrenalina endovenosa in corso di reazione anafilattica: sindrome di Kounis o takotsubo?

The presence of an acute coronary syndrome in patients with anaphylaxis is a challenging diagnostic conundrum for the cardiologist. Both Kounis syndrome and takotsubo syndrome must be taken into account. We present here the case of a 46-year-old woman suffering from ventricular fibrillation after adrenaline infusion for an anaphylactic reaction. The case report shows the important role of a clear diagnostic work-up and the role of cardiac magnetic resonance in this clinical scenario to reach the final diagnosis of reverse takotsubo cardiomyopathy.

The day when the echocardiographist went mushrooming .

We report a case of partial congenital absence of the pericardium associated with severe aortic stenosis on a bicuspid valve in a 72-year-old man. Diagnosis was based on echocardiography and confirmed with magnetic resonance imaging, and the patient benefited from pericardioplasty and aortic valve replacement.