Nadezhda Zhuravskaya

Saint Petersburg State University | SPBU

An enlarged left atrial volume index (LAVI) at rest mirrors increased LA pressure and/or impairment of LA function. A car-diovascular stress may acutely modify left atrial volume (LAV) within minutes. Aim of this study was to assess the feasibility and functional correlates of LAV-stress echocardiography (SE) Out of 514 subjects referred to 10 qual...

A lot of people with coronary artery disease do not have specific symptoms, and myocardial infarction or death are the first manifestation of the disease. New accurate, non-invasive and safe screening methods are required that can assess the prognosis of patients during routine examinations performed on millions of people. The aim of this review wa...

Funding Acknowledgements Type of funding sources: None. Several recent studies have reported the opportunity for diagnosing significant narrowing of the coronary arteries during echocardiography using the local flow acceleration in the stenosis. However, there is a discrepancy between the cut-off coronary flow velocity (CFV) values in the literatur...

Funding Acknowledgements Type of funding sources: None. Background There is a high prevalence of coronary artery disease (CAD) in the elderly population. However, symptoms of CAD are often non-specific. Dyspnoe, non-anginal pains are among the main symptoms in older patients. Exercise tests are of limited feasibility in these patients, due to neur...

Funding Acknowledgements Type of funding sources: None. Background The function of right ventricle (RV) is an independent prognostic factor for patients with valvular heart disease. However, changes in RV function parameters in patients with and without tricuspid valve operations after cardiac surgery are lack known. The aim of the study was to de...

Background: Knowing that stenosis of coronary arteries can be underestimated by coronary angiography. Purpose: We hypothesized that a local high velocity – ≥70 cm/s as measured by Doppler echocardiography – in left main and/or in the proximal portion of left anterior descending (LAD) in patients who had ischemic stress echo test and no/mild stenose...

Background Two-dimensional (2-D) volumetric exercise stress echocardiography (ESE) provides an integrated view of preload reserve through end-diastolic volume (EDV) and left ventricular contractile reserve (LVCR) through end-systolic volume (ESV) changes. Purpose To assess the dependence of stroke volume (SV) and cardiac output (CO) upon LVCR EDV...

Background Stenosis of a coronary artery results in an increase in flow velocity in the pathologic segment. Effective grafting should decrease the stenotic native coronary velocity according to hemodynamic law. The range of decreased velocity before and after cardiac surgery can hypothetically reflect the effectiveness of a graft. The aim of the st...

Background: Stroke volume response during stress is a major determinant of functional status in heart failure and can be measured by two-dimensional (2-D) volumetric stress echocardiography (SE). The present study hypothesis is that SE may identify mechanisms underlying the change in stroke volume by measuring preload reserve through end-diastolic...

Objectives The purpose of this study was to assess the functional and prognostic correlates of B-lines during stress echocardiography (SE). Background B-profile detected by lung ultrasound (LUS) is a sign of pulmonary congestion during SE. Methods The authors prospectively performed transthoracic echocardiography (TTE) and LUS in 2,145 patients r...

Current guidelines recommend the use of exercise stress echocardiography (ESE) in patients with unexplained dyspnoea. SE was recently reshaped with the ABCDE protocol: A for asynergy, B for B-lines (4-site simplified scan), C for contractile reserve based on force, D for Doppler-based coronary flow velocity reserve (CFVR) in left anterior descendin...

Funding Acknowledgements university Grand Background Atherosclerosis is a chronic and progressive disease that causes high mortality primarily in persons over the age of forty. However, a lot of atherosclerosis cases are only discovered after a fatal cardiovascular event. Several techniques can be used to identify atherosclerosis when it is still...

OnBehalf Stress Echo 2020 study group of the Italian Society of Cardiovascular Imaging Background Stress echo (SE) risk stratification is based on regional wall motion abnormalities (RWMA). The assessment of global left ventricular contractile reserve (LVCR) based on load-independent Force may refine prognosis. Aim To assess the value of LVCR dur...

OnBehalf Stress Echo 2020 study group of the Italian Society of Cardiovascular Imaging Background B-lines (also known as comets) by lung ultrasound (LUS) are a marker of pulmonary congestion and interstitial pulmonary edema during stress echocardiography (SE). Aim To assess the prognostic value of B-lines during SE. Methods We prospectively perf...

Background Stenosis of a coronary artery results in an increase in flow velocity in the pathologic segment. Effective grafting should decrease the stenotic native coronary velocity according to a hemodynamic law. The range of decreased velocity can hypothetically reflect the effectiveness of a graft. Grafting effect insufficiencies often cause elev...

Background The previous diagnostic study had demonstrated high correlation of maximal coronary flow velocity with significant stenoses by invasive methods. There is a lack of information about the prognostic value of local high velocity in coronary arteries during echocardiography. The present study was aimed at investigating the three-year prognos...

OnBehalf Stress Echo 2020 study group of the Italian Society of Cardiovascular Imaging Background Over the last 3 decades, we observed a progressive decline in the prognostic value of a negative stress echo (SE) test based on regional wall motion abnormalities (RWMA), likely reflecting both an increase in risk in patients (older and more often dia...

Background: The assessment of coronary flow velocity reserve (CFVR) in left anterior descending coronary artery (LAD) expands the risk stratification potential of stress echocardiography (SE) based on stress-induced regional wall motion abnormalities (RWMA). Objectives: The purpose of this study was to assess the feasibility and functional corre...

Background Ejection fraction (EF) is a parameter that has traditionally been used for prognostic aims during echocardiography. However, it is known that its prognostic role is accurate only if EF has clearly decreased. So, in the large group of patients who had no prior myocardial infarction, with normal EF but with severe narrowing of main coronar...

Background Current guidelines recommend the use of exercise stress echocardiography (ESE) in patients with unexplained dyspnoea. The methodological standard of ESE was recently reshaped with the quadruple imaging protocol, mainly tested in patients with chest pain. Aim of this study was to define the ESE pattern of response in patients with dyspnoe...

Background The assessment of coronary flow velocity reserve (CFVR) on left anterior descending coronary artery (LAD) expands the risk stratification potential of stress echocardiography (SE) based on regional wall motion abnormalities (RWMA). Aim To assess the feasibility and functional correlates of CFVR. Methods In a prospective, observational,...

Aim of the study was to identify the effects of myocardial revascularization on the prognosis in patients with altered coronary blood flow detected by transthoracic ultrasound. Material and Methods . Four hundred and twelve (412) patients were included in the study. The inclusion criterion was coronary velocity more than 70 cm/s during echocardiogr...

Aim of the study was to identify the effects of myocardial revascularization on the prognosis in patients with altered coronary blood flow detected by transthoracic ultrasound. Material and Methods . Four hundred and twelve (412) patients were included in the study. The inclusion criterion was coronary velocity more than 70 cm/s during echocardiogr...

There is a lack of information on the prognostic value of local high velocity in coronary arteries during echocardiography. The aim of the study described here was to define the prognostic value of local velocity >70 cm/s in the left main, anterior or circumflex artery during echocardiography. There were 412 patients in the prospective study. Death...

Background Several recent studies have reported the opportunity to diagnose significant narrowing of the coronary arteries without stress testing using local flow acceleration. Purpose To define how often patients with increased coronary flow velocities at rest (≥ 0.70 m/s) have a positive exercise echocardiography test. Material and Methods A to...

Various lung ultrasound (LUS) scanning modalities have been proposed for the detection of B-lines, also referred to as ultrasound lung comets, which are an important indication of extravascular lung water at rest and after exercise stress echo (ESE). The aim of our study was to assess the lung water spatial distribution (comet map) at rest and afte...

Ultrasound non-invasive coronary artery imaging contributes to the diagnosis of ischemic heart disease (IHD) in clinical practice. However, data of the prognostic value obtained from a complex analysis of contractility disorders and coronary blood flow parameters during exercise tests in the world literature are still not available. Aim. To develop...

Aims The aim of the study was to assess the additive prognostic value of coronary flow velocity reserve (CFVR) alongside wall motion analysis during exercise echocardiography in patients with known or suspected coronary artery disease (CAD). Methods and results In a prospective, single-centre, observational study, we evaluated 689 patients (449 ma...

There is absence of data in international publications, on the measurement of coronary flow in 2nd type diabetes patients (DM) during stress-echocardiography (SEchoCG) with physical exertion (PE). Aim. To study the changes of coronary flow in left anterior descending artery (LAD) during SEchoCG with PE in DM patients with and without signs of coron...

Purpose. The aim of our study was to non-invasively investigate the parameters of coronary blood flow during exercise in patients with arterial hypertension. Materials and Methods. We enrolled 144 patients with arterial hypertension. All patients performed supine bicycle symptoms-limited tests. Throughout the exercise, the diastolic peaks of corona...

Background: Assessment of coronary flow is only performed during pharmacological tests. Supine bicycle tests permit the visualization of coronary flow assessments during exercise. Purpose: To assess the parameters of coronary flow in the left anterior descending artery (LAD) during exercise, which could be a sign of significant LAD narrowing. M...

Purpose: 3D echocardiography (3DE) enables fast 3D acquisition but subsequent manual navigation to find 2D diagnostic planes can be time consuming. We have developed and validated an automated machine learning-based technique to find apical 2-, 3- and 4-chamber (A2C, A3C, A4C) views that enables fast volume navigation and analysis. Methods: 3DE vol...

Ischemic segments cannot develop a sufficient amount of strength during systole, so theoretically they begin to contract later in comparison with non-ischemic zones. There is a lack of information about methods that can detect dyssynchrony during exercise in patients with QRS not longer 100 ms. The aim of the study was to compare different methods...

Background There is conflicting data in contemporary literature concerning the best way to treat patients with stable coronary artery disease; specifically, whether medical treatment alone or invasive strategies combined with medical treatment are better. The purpose of this study was to evaluate the clinical outcomes of patients with and without r...

Knowledge of alteration in coronary artery flow during physical activity provides important and valuable information about every patient. The aim of our study was (a) to identify the possibility of assessing coronary artery flow parameters using different ultrasound systems during the exercise test and (b) to compare these parameters with angiograp...

Mitral Valve Repair

Assessing right ventricle (RV) function is difficult primarily because of its complex shape. Worsening RV function or dilatation during stress tests in patients with coronary artery disease may indicate proximal right coronary artery (RCA) narrowing. The aim of this study was to obtain quantitative diagnostic criteria for impaired RV function by ti...

Development of optimal methods for the objective non-invasive diagnosis of coronary artery disease remains a challenge for imaging techniques in stress tests. The aim of this study was to obtain quantitative diagnostic criteria TDI which could detect significant coronary artery disease during exercise echocardiography. We evaluated regional systoli...