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1.
Arch Cardiovasc Dis ; 114(5): 340-351, 2021 May.
Article in English | MEDLINE | ID: mdl-33926830

ABSTRACT

BACKGROUND: Systems of care have been challenged to control progression of the COVID-19 pandemic. Whether this has been associated with delayed reperfusion and worse outcomes in French patients with ST-segment elevation myocardial infarction (STEMI) is unknown. AIM: To compare the rate of STEMI admissions, treatment delays, and outcomes between the first peak of the COVID-19 pandemic in France and the equivalent period in 2019. METHODS: In this nationwide French survey, data from consecutive STEMI patients from 65 centres referred for urgent revascularization between 1 March and 31 May 2020, and between 1 March and 31 May 2019, were analysed. The primary outcome was a composite of in-hospital death or non-fatal mechanical complications of acute myocardial infarction. RESULTS: A total of 6306 patients were included. During the pandemic peak, a 13.9±6.6% (P=0.003) decrease in STEMI admissions per week was observed. Delays between symptom onset and percutaneous coronary intervention were longer in 2020 versus 2019 (270 [interquartile range 150-705] vs 245 [140-646]min; P=0.013), driven by the increase in time from symptom onset to first medical contact (121 [60-360] vs 150 [62-420]min; P=0.002). During 2020, a greater number of mechanical complications was observed (0.9% vs 1.7%; P=0.029) leading to a significant difference in the primary outcome (112 patients [5.6%] in 2019 vs 129 [7.6%] in 2020; P=0.018). No significant difference was observed in rates of orotracheal intubation, in-hospital cardiac arrest, ventricular arrhythmias and cardiogenic shock. CONCLUSIONS: During the first peak of the COVID-19 pandemic in France, there was a decrease in STEMI admissions, associated with longer ischaemic time, exclusively driven by an increase in patient-related delays and an increase in mechanical complications. These findings suggest the need to encourage the population to seek medical help in case of symptoms.


Subject(s)
COVID-19/epidemiology , Pandemics , ST Elevation Myocardial Infarction/therapy , Comorbidity , Diabetes Mellitus/epidemiology , Female , France/epidemiology , Health Care Surveys , Heart Rupture, Post-Infarction/epidemiology , Hospital Mortality , Humans , Hyperlipidemias/epidemiology , Hypertension/epidemiology , Male , Middle Aged , Patient Acceptance of Health Care , Patient Admission/statistics & numerical data , Percutaneous Coronary Intervention/statistics & numerical data , Procedures and Techniques Utilization , Prognosis , Risk Factors , SARS-CoV-2 , ST Elevation Myocardial Infarction/complications , ST Elevation Myocardial Infarction/epidemiology , Smoking/epidemiology , Stents , Time-to-Treatment , Treatment Outcome
2.
J Health Econ Outcomes Res ; 6(2): 95-105, 2019.
Article in English | MEDLINE | ID: mdl-32685583

ABSTRACT

BACKGROUND: Bifurcation lesions represent 15-20% of all patients undergoing a percutaneous coronary intervention (PCI) for coronary artery disease. The provisional 1-stent stenting strategy is the preferred strategy to treat bifurcation lesions. Other strategies used to treat bifurcation lesions include 2-stent complex stenting strategies and the Tryton Side Branch Stent® (TSB)-a dedicated side-branch stent for bifurcation lesions, which gained FDA approval in March 2017. OBJECTIVES: To conduct a systematic literature review of the safety and effectiveness of three stenting strategies (provisional, complex, and Tryton Side Branch Stent®) for bifurcation lesions with a side-branch diameter ≥2.25 mm, undergoing PCI. METHODS: Literature searches in Medline, Cochrane Library, Web of Science and Embase were conducted to identify prospective clinical trials from January 2007-July 2017. RESULTS: 602 articles were identified. Nine articles (6275 patients) met all inclusion criteria. Seven studies (5282 patients) compared provisional to complex stenting strategies. Two studies (993 patients) compared provisional to the TSB. Outcomes of interest reported were target vessel failure in 2 studies, major adverse cardiac event (MACE) (cardiac death, all myocardial infarction, ischemic driven target legion revascularization TLR) in 5 studies. For target vessel failure, the provisional strategy ranged from 5.6% to 15.6 %; complex at 7.2% (one study); and TSB from 11.3% to 17.4%. For MACE, provisional strategy ranged from 8%-13.2%; complex from 11.9%-15.2%; and TSB from 8.2%-18.6%. CONCLUSIONS: To our knowledge, this is the first review comparing three bifurcation lesion stenting strategies. Significant heterogeneity in the study design of the nine studies reviewed prevented a meta-analysis. A clinical trial comparing the TSB to both the provisional and complex strategies would provide better inference on the safety and effectiveness when comparing strategies.

3.
J Interv Card Electrophysiol ; 37(1): 105-9, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23247421

ABSTRACT

PURPOSE: The 9-French 8-mm tip cryoablation catheter confers a high rate of acute slow pathway (SP) elimination and an acceptable short-term outcome in patients with atrioventricular nodal reentrant tachycardia (AVNRT). The aim of this study was to investigate the long-term outcome of patients treated with this electrode in this indication. METHODS: Eighty-two patients (female = 52) with a mean age of 54.9 ± 17.7 years underwent SP elimination for typical AVNRT with the 8-mm tip cryocatheter in our institution between November 2009 to June 2012. Clinical and procedural characteristics were prospectively collected. RESULTS: Acute procedural success defined as AVNRT non-inducibility at the end of the procedure was obtained in 81/82 patients (98.7 %). Mean procedure duration and fluoroscopy time were 74.4 ± 28.7 min (range, 35-160 min) and 8.7 ± 5.3 min (range, 2-26 min), respectively. Mean number of energy applications was 4.0 ± 2.4 (range, 2-15). No permanent atrioventricular block was observed. Transient atrioventricular block occurred in 12 patients (14.6 %). Traumatic fast pathway conduction block occurred in one patient before cryoenergy delivery. Using an intention-to-treat analysis, 78 patients (95.1 %) remained free of AVNRT recurrence during a mean follow-up of 17.8 ± 9.3 months. CONCLUSIONS: This study confirmed that the 8-mm tip cryocatheter is both safe and highly effective for SP conduction elimination in patients with AVNRT and demonstrated a low recurrence rate during a long-term follow-up.


Subject(s)
Cryosurgery/instrumentation , Cryosurgery/statistics & numerical data , Heart Conduction System/abnormalities , Heart Conduction System/surgery , Tachycardia, Atrioventricular Nodal Reentry/epidemiology , Tachycardia, Atrioventricular Nodal Reentry/surgery , Equipment Design , Equipment Failure Analysis , Female , Follow-Up Studies , France/epidemiology , Humans , Male , Middle Aged , Prevalence , Risk Assessment , Treatment Outcome
4.
Hosp Pract (1995) ; 40(2): 104-17, 2012 Apr.
Article in English | MEDLINE | ID: mdl-22615085

ABSTRACT

In patients with acute coronary syndromes undergoing percutaneous coronary intervention, the combination of aspirin and clopidogrel, a P2Y12 adenosine diphosphate (ADP) receptor antagonist, is the gold standard of antiplatelet therapy. Two more potent P2Y12 ADP receptor antagonists are now available. Pharmacodynamic studies have revealed a large interindividual variability in the biological response to clopidogrel that is primarily related to variable active metabolite generation, depending on clinical factors, drug-drug interactions, and genetic polymorphisms. Several assays to measure platelet function are available and have revealed a high prevalence of high on-treatment platelet reactivity (HTPR). Patients exhibiting HTPR after a clopidogrel loading dose have a higher risk of thrombotic recurrence after percutaneous coronary intervention. A recent consensus has defined HTPR for the main platelet assays available (using receiver operating characteristic curve analysis) to define the optimal cutoff value for each assay in order to predict thrombotic recurrences. In this article, we present several lines of evidence that suggest a therapeutic window of platelet reactivity inhibition with P2Y12 ADP receptor antagonists. Such a paradigm shift is supported by the results of the Platelet Inhibition and Patient Outcomes (PLATO) trial and the Trial to Assess Improvement in Therapeutic Outcomes by Optimizing Platelet Inhibition with Prasugrel-Thrombolysis in Myocardial Infarction (TRITON-TIMI) 38, which showed the superiority of ticagrelor and prasugrel on thrombotic events compared with clopidogrel; however, these 2 medications had an increased bleeding rate. With the results of these trials, in addition to the evidence of a therapeutic window with P2Y12 ADP receptor antagonists, we summarize the potential of platelet reactivity monitoring and pharmacogenomics to tailor therapy.


Subject(s)
Acute Coronary Syndrome/drug therapy , Acute Coronary Syndrome/surgery , Aspirin/therapeutic use , Percutaneous Coronary Intervention , Platelet Aggregation Inhibitors/therapeutic use , Postoperative Complications/prevention & control , Ticlopidine/analogs & derivatives , Aryl Hydrocarbon Hydroxylases/genetics , Aryldialkylphosphatase/genetics , Aspirin/administration & dosage , Clopidogrel , Cytochrome P-450 CYP2C19 , Drug Interactions , Drug Resistance/genetics , Evidence-Based Medicine , Genotype , Humans , Piperazines/therapeutic use , Platelet Aggregation Inhibitors/administration & dosage , Platelet Function Tests , Prasugrel Hydrochloride , Purinergic P2Y Receptor Antagonists/therapeutic use , Receptors, Purinergic P2Y12/analysis , Thiophenes/therapeutic use , Ticlopidine/administration & dosage , Ticlopidine/therapeutic use
6.
Thromb Res ; 124(1): 33-6, 2009 May.
Article in English | MEDLINE | ID: mdl-18990434

ABSTRACT

BACKGROUND: Increased doses of antiplatelet therapy have been proposed to overcome the variability of response. However, the chronic dose of aspirin after DES remains controversial. METHODS AND RESULTS: We assessed in a prospective and randomized study the benefit of higher dose of aspirin, in association with clopidogrel, on aspirin response and non COX-specific platelet testing in patients receiving Drug Eluting Stent (DES) for stable angina pectoris. 50 consecutive patients receiving DES for stable angina pectoris were prospectively included. They received loading dose of 250 mg aspirin and 600 mg clopidogrel and antiplatelet response was assessed with Arachidonic Acid-induced aggregation (AA-Ag) and ADP-induced aggregation (ADP-Ag) for aspirin and clopidogrel response respectively. Patients were randomized to either 75 or 160 mg of aspirin with 150 mg clopidogrel and platelet testing were repeated one month after hospital discharge. The two groups (aspirin "75 mg" or "160 mg") had no difference for aspirin response: AA-Ag (5.2 +/- 1.7% vs 6 +/- 2%, p = 0.75) and non COX-specific pathway testing: ADP-Ag (47 +/- 3% vs 49 +/- 4%, p = 0.61). CONCLUSION: The present study did not show any benefit of higher dose of aspirin neither on aspirin responsiveness, nor on inhibition of non COX-specific pathway. These data does not support use of higher dose than 75 mg of aspirin in association with clopidogrel in patients receiving DES, especially while higher doses have been associated with increased bleeding risk.


Subject(s)
Aspirin/pharmacology , Drug-Eluting Stents , Platelet Aggregation Inhibitors/pharmacology , Ticlopidine/analogs & derivatives , Adenosine Diphosphate/pharmacology , Aged , Angina Pectoris/drug therapy , Arachidonic Acid/pharmacology , Aspirin/administration & dosage , Blood Platelets/drug effects , Clopidogrel , Dose-Response Relationship, Drug , Drug Therapy, Combination , Female , Follow-Up Studies , Humans , Male , Middle Aged , Platelet Aggregation Inhibitors/administration & dosage , Practice Guidelines as Topic/standards , Prospective Studies , Ticlopidine/administration & dosage , Ticlopidine/pharmacology , Time Factors , Treatment Outcome
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