Investigation of Acoustic Properties of Different Types of Low-Noise Road Surfacers under In Situ and Laboratory Conditions.

Current literature on the performance characteristics of road surfaces is primarily focused on evenness, roughness and technical durability. However, other important surface properties require analysis, including noisiness, which is an important feature of the environmental impact of vehicular traffic around roads. This can be studied using various methods by which road noise phenomena are investigated.

The usefulness of telemedicine devices in patients with severe heart failure with an implanted cardiac resynchronization therapy system during two years of observation.

Background: Heart failure (HF) remains a disease with a poor prognosis. Telemonitoring is a medical service aimed at remote monitoring of patients.

Aim: The study aimed to identify the clinical relevance of non-invasive telemonitoring devices in HF patients.

Two-dimensional speckle-tracking echocardiography assessment of left ventricular remodeling in patients after myocardial infarction and primary reperfusion.

Introduction: Left ventricular remodeling (LVR) is the most prognostically important consequence of acute myocardial infarction (AMI). The aim of the study was to assess the value of speckle tracking echocardiography in the prediction of left ventricular remodeling in patients after AMI and primary coronary angioplasty (PCI).

Material And Methods: Eighty-eight patients (F/M = 31/57 patients; 63.

Prediction of infarct size by speckle tracking echocardiography in patients with anterior myocardial infarction.

Background: Speckle tracking echocardiography (STE) is based on tracing of pixel groups in grayness scale for the quantitative measurement of myocardium strain and myocardium strain rate. Recent data suggest that evaluation of STE could be a tool for myocardial function assessment similar to MRI.

Aim: To assess the predictive value of STE for the evaluation of infarct size in patients with anterior ST-elevation myocardial infarction (STEMI).

Dynamicity of early and late phases of repolarization in patients with remote anterior myocardial infarction: the interlead differences.

Background: Repolarization dynamicity (QT/RR) is supposed to be a prognostic marker in post-MI patients. However, data on the relationships between early and late phases of QT and RR intervals (QT peak/RR and T peak-T end/RR) are insufficient, and which ECG lead should be used for the analysis is unclear. We analyzed repolarization dynamicity in patients after anterior MI with and without VT/VF history using two leads of Holter recordings- modified V(5) and V(3) .

Value of speckle-tracking echocardiography for prediction of left ventricular remodeling in patients with ST-elevation myocardial infarction treated by primary percutaneous intervention.

Background: Left ventricular remodeling (LVr) is still common after ST-segment elevation myocardial infarction (STEMI). Early predictors of remodeling are being investigated. The aims of this study were to evaluate the prognostic value of speckle-tracking echocardiography for the prediction of LVr 3 months after primary percutaneous coronary intervention in patients with STEMI and to analyze the relationship between values of peak longitudinal strain of particular LV segments and relative changes of their subvolumes.

Prediction of left ventricular remodeling in patients with STEMI treated with primary PCI: use of quantitative myocardial contrast echocardiography.

Objectives: We sought to determine the frequency of left ventricular remodeling in the 6-month follow-up after anterior ST elevation myocardial infarction and the value of quantitative parameters of perfusion contrast echocardiography for prognosis of left ventricular remodeling against other established risk.

Methods: A total of 60 patients with anterior ST elevation myocardial infarction treated by primary percutaneous intervention were examined. In 28 patients, thromboaspiration was performed before stent implantation with Driver catheter.

Heart rate turbulence in postinfarction patients with history of malignant ventricular arrhythmias.

Unlabelled: In the study, there has been retrospectively analyzed heart rate turbulence in postinfarction patients. The cohort of 158 patients consisted of 94 patients with documented ventricular tachycardia and/or ventricular fibrillation (VT/VF) and 64 patients without history of VT/VF. Turbulence onset and slope were calculated from Holter recordings, and left ventricle ejection fraction (LVEF) ≤35% was regarded as severe left ventricle dysfunction.

Late phase of repolarization (TpeakTend) as a prognostic marker of left ventricle remodeling in patients with anterior myocardial infarction treated with primary coronary intervention.

Background: Left ventricle remodeling (LVR) is regarded as a marker of unfavorable outcome in patients following acute myocardial infarction (AMI). Repolarization, especially its late part (TpeakTend), is strongly related to local myocardial attributes. We assessed prospectively in this study if repolarization duration (measured from one hour of nighttime) might predict LVR occurrence in patients with anterior AMI treated with primary percutaneous coronary intervention (PCI).

Prediction of long-term outcome after primary percutaneous coronary intervention for acute anterior myocardial infarction.

Background: Despite the widespread use of reperfusion methods, the long-term outcome after primary percutaneous coronary intervention (PCI) is variable, and accurate risk stratification is of clinical importance.

Aim: To assess the predictors of long term outcome after PCI for acute anterior myocardial infarction (AMI).

Methods: One hundred and twenty-seven consecutive patients undergoing PCI within 12 hours from the onset of the first AMI were enrolled.

Predictors of long-term outcome in patients with left ventricular dysfunction following coronary artery bypass grafting.

Background: Prognostic significance of clinical and non-invasive risk markers in patients after surgical revascularisation remains unclear, especially in post-infarction patients with left ventricular (LV) dysfunction.

Aim: The single-centre, prospective study was designed to assess survival and the predictive power of several clinical and non- -invasive risk markers of all-cause (ACM) and cardiovascular mortality (CVM) in post-CABG patients with LV dysfunction.

Methods: A cohort of 61 patients (age 59+/-9 years, 49 males, LVEF 33+/-6%) 6-12 months after CABG was prospectively followed for a median of 46 months.

Microvascular damage prevention with thrombaspiration during primary percutaneous intervention in acute myocardial infarction.

Background: Despite rapid and complete recanalization of infarct-related artery with percutaneous coronary intervention, microvascular integrity is not often preserved. Several mechanical devices have been proposed to prevent distal embolization, but the impact of these devices on myocardial perfusion remains controversial.

Aim: The aim of our study was to assess microvascular damage reduction with quantitative myocardial contrast perfusion echocardiography among patients with the first anterior acute myocardial infarction treated with thromboaspiration during percutaneous coronary intervention.

QT/RR relationship in patients after remote anterior myocardial infarction with left ventricular dysfunction and different types of ventricular arrhythmias.

Background: QT/RR relationship was found to be both rate-dependent and rate-independent, what suggests the influence of autonomic drive and other not-autonomic related factors on it. The steeper QT/RR slope in patients after acute myocardial infarction (MI) was described, but the relationship to ventricular arrhythmias is unknown. The purpose of this study was to calculate differences in QT/RR relationship in patients after remote anterior MI with left ventricular dysfunction and different types of ventricular arrhythmias.

Impact of left ventricular remodeling on ventricular repolarization and heart rate variability in patients after myocardial infarction treated with primary PCI: prospective 6 months follow-up.

Background: The relation between postinfarction left ventricle remodeling (LVR), autonomic nervous system and repolarization process is unclear. Purpose of the study was to assess the influence of LVR on the early (QTpeak) and late (TpeakTend) repolarization periods in patients after myocardial infarction (MI) treated with primary PCI. The day-to-night differences of repolarization parameters and the relation between QT and heart rate variability (HRV) indices, as well left ventricle function were also assessed.

[Prediction of adverse cardiac events in patients with acute anterior wall myocardial infarction treated with PCI].

Unlabelled: Despite common use of reperfusion therapy, particularly primary PCI during acute myocardial infarction, steadily increasing number of patients with low left ventricular ejection fraction, with heart failure (HF), requiring frequent rehospitalisation justifies the study establishing the best indices of prediction of major adverse cardiac events (MACE) occurrence. The aim of the study was to define the frequency of MACE (death, re MI, sVT, rehospitalisation for HF) in patients with acute anterior wall myocardial infarction in 6 month follow up and the factors determinatig its occurence. The 115 consecutive patients (86 males of age 57.

Correlation between electrical and mechanical properties of the left ventricle in patients with postinfarction ventricular tachycardia.

Background: Electroanatomical mapping allows differentiation between viable and scarred myocardium. Echocardiography is widely used to assess myocardial contractility. The relationship between electrophysiological and echocardiographic assessment of left ventricular function has not yet been well established.

The use of myocardial contrast echocardiography in the assessment of left ventricular function recovery after primary percutaneous coronary intervention in the setting of acute myocardial infarction.

Background: Despite successful reperfusion therapy of acute myocardial infarction and complete restoration of infarct-related artery patency, the improvement of systolic function in long-term outcome depends on preserved microvasculature integrity. Myocardial contrast echocardiography (MCE) is a useful technique for identification of viable myocardium.

Aim: To assess the value of real-time myocardial contrast echocardiography (rt-MCE) in prediction of left ventricular function improvement in patients with anterior wall acute myocardial infarction as well as selection of the optimal cut-off value for the number of dysfunctional segments with preserved complete perfusion, in order to predict the global left ventricular function improvement during one-month observation.

Diagnostic utility of tissue tracking echocardiography for the diagnosis of ischaemic heart disease.

Introduction: Both the resting electrocardiogram and standard echocardiography have limited value in detecting ischaemic heart disease (IHD) in patients with atypical symptoms or asymptomatic subjects. Tissue tracking (TT) is a novel method based on tissue Doppler echocardiography for the assessment of longitudinal apical myocardial motion.

Aim: To assess diagnostic utility of TT mode in the diagnosis of IHD.