Publications by authors named "Jiri Knot"

Aim: This study aimed to analyze the influence of the hospital admitting department on adherence to the Guidelines of European Society of Cardiology for management of acute coronary syndromes in patients after out-of-hospital cardiac arrest (OHCA) of coronary etiology.

Methods: We studied retrospective-prospective register of 102 consecutive patients with OHCA as a manifestation of acute coronary syndrome (ACS). Patients were admitted to the coronary care unit (CCU) 52, general intensive care unit (GICU) 21, or GICU after initial Cath lab treatment (CAG-GICU) 29.

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Drug-eluting stents (DES) are the recommended stents for primary percutaneous coronary intervention (PCI). This study aimed to determine why interventional cardiologists used non-DES and how it influenced patient prognoses. The efficacy and safety outcomes of the different stents were also compared in patients treated with either prasugrel or ticagrelor.

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Background: Aortic dissection is a relatively uncommon, but often catastrophic disease that requires early and accurate diagnosis. It often presents in patients with congenital connective tissue disorders. The current aortic surgical techniques are related with serious early and late complications.

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Purpose: To investigate the prognostic significance of diabetes mellitus (DM) in patients with high risk acute myocardial infarction (AMI) treated with primary percutaneous coronary intervention (pPCI) in the era of potent antithrombotics.

Methods: Data from 1230 ST-segment elevation myocardial infarction (STEMI) patients enrolled in the PRAGUE-18 (prasugrel vs. ticagrelor in pPCI) study were analyzed.

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Background: Apoptosis plays an important role in the myocardial injury after acute myocardial infarction and in the subsequent development of heart failure.

Aim: To clarify serum kinetics of apoptotic markers TRAIL and sFas and their relation to left ventricular ejection fraction (LVEF) in patients with ST-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (pPCI).

Methods: In 101 patients with STEMI treated with pPCI, levels of TRAIL and sFas were measured in series of serum samples obtained during hospitalization and one month after STEMI.

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Background: Early outcomes of patients in the PRAGUE-18 (Comparison of Prasugrel and Ticagrelor in the Treatment of Acute Myocardial Infarction) study did not find any significant differences between 2 potent P2Y inhibitors.

Objectives: The 1-year follow-up of the PRAGUE-18 study focused on: 1) a comparison of efficacy and safety between prasugrel and ticagrelor; and 2) the risk of major ischemic events related to an economically motivated post-discharge switch to clopidogrel.

Methods: A total of 1,230 patients with acute myocardial infarction (MI) treated with primary percutaneous coronary intervention were randomized to prasugrel or ticagrelor with an intended treatment duration of 12 months.

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Purpose: Identification of clinical and laboratory predictors related to Infectious Complications (ICs) in patients after Out-of-Hospital Cardiac Arrest (OHCA).

Methods: Patients, aged >18, after an OHCA between 9/2013 and 11/2015, surviving >24h, were studied.

Results: Study group consisted of 42 patients (mean age 63.

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Background: The study investigated the discharge antithrombotic medication in patients with atrial fibrillation (AF) after major non-cardiac surgery and the impact on one-year outcomes.

Methods: A subgroup of 366 patients (mean age 75.9±10.

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Background: Survival rates and outcomes after out-of-hospital cardiac arrest (OHCA) remain low despite investments of time and money. The goal of this analysis was to identify variables related to survival of patients transferred to our coronary care unit (CCU) after an OHCA.

Methods: 102 consecutive OHCA patients, mean age 64.

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Background: No randomized head-to-head comparison of the efficacy and safety of ticagrelor and prasugrel has been published in the 7 years since the higher efficacy of these newer P2Y inhibitors were first demonstrated relative to clopidogrel.

Methods: This academic study was designed to compare the efficacy and safety of prasugrel and ticagrelor in acute myocardial infarction treated with primary or immediate percutaneous coronary intervention. A total of 1230 patients were randomly assigned across 14 sites to either prasugrel or ticagrelor, which was initiated before percutaneous coronary intervention.

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Background: Patients with diabetes mellitus (DM) or chronic kidney disease (CKD) have a high risk of acute myocardial infarction and recurrent cardiovascular events. According to the previous studies, the combination of the two conditions may have a synergistic impact on prognosis. The aim of this study was to assess the impact of stage of CKD on the outcomes of patients with DM and ST-elevation myocardial infarction (STEMI) treated with percutaneous coronary intervention (PCI).

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Objective: The present study aimed to compare characteristics related to selection of a P2Y₁₂ antagonist, investigate initiation of therapy with new-generation drugs, and identify predictors of high on-treatment platelet reactivity (HTPR) in patients with acute coronary syndrome treated with stent percutaneous coronary intervention (PCI).

Methods And Results: Data from 589 patients in the LAPCOR (Laboratory AntiPlatelet efficacy and Clinical Outcome Registry; ClinicalTrials.gov Identifier: NCT02264912) registry was analyzed.

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Background: Traditionally, acute myocardial infarction (AMI) has been described as either STEMI (ST-elevation myocardial infarction) or non-STEMI myocardial infarction. This classification is historically related to the use of thrombolytic therapy, which is effective in STEMI. The current era of widespread use of coronary angiography (CAG), usually followed by primary percutaneous coronary intervention (PCI) puts this classification system into question.

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Background: Older age, as a factor we cannot affect, is consistently one of the main negative prognostic values in patients with acute myocardial infarction. One of the most powerful factors that improves outcomes in patients with acute coronary syndromes is the revascularization preferably performed by percutaneous coronary intervention. No data is currently available for the role of age in large groups of consecutive patients with PCI as the nearly sole method of revascularization in AMI patients.

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Aims: The current guidelines recommend reperfusion therapy in acute myocardial infarction (AMI) with ST-segment elevation or left bundle branch block (LBBB). Surprisingly, the right bundle branch block (RBBB) is not listed as an indication for reperfusion therapy. This study analysed patients with AMI presenting with RBBB [with or without left anterior hemiblock (LAH) or left posterior hemiblock (LPH)] and compared them with those presenting with LBBB or with other electrocardiographic (ECG) patterns.

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The development and use of stents has made percutaneous coronary intervention an effective (less restenosis), safe (treatment of emergency vessel closure during balloon angioplasty), and applicable (stents were developed for lesions of tortuous anatomy and complex situations) revascularization method. These features have firmly established stenting as first-line therapy in coronary revascularization. This life-saving device carries, however, the risk of a life-threatening complication--stent thrombosis.

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Aims: Patient access to reperfusion therapy and the use of primary percutaneous coronary intervention (p-PCI) or thrombolysis (TL) varies considerably between European countries. The aim of this study was to obtain a realistic contemporary picture of how patients with ST elevation myocardial infarction (STEMI) are treated in different European countries.

Methods And Results: The chairpersons of the national working groups/societies of interventional cardiology in European countries and selected experts known to be involved in the national registries joined the writing group upon invitation.

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Aims: Percutaneous coronary interventions (PCI) are used to treat acute and chronic forms of coronary artery disease. While in chronic forms the main goal of PCI is to improve the quality of life, in acute coronary syndromes (ACS) timely PCI is a life-saving procedure - especially in the setting of ST-elevation myocardial infarction (STEMI). The aim of this study was to describe the experience of countries with successful nationwide implementation of PCI in STEMI, and to provide general recommendations for other countries.

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Extremely long-term follow-up (24 years) of the historically first Czech myocardial infarction patient, treated by intracoronary thrombolysis, is presented. His current coronary angiography confirmed the finding 24 years ago, that this was a case of smoking-induced thrombosis in otherwise healthy coronary arteries. Experience with 76 similar cases among 4093 consecutive coronary angiograms (including 778 done acutely for STEMI) is briefly described.

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