A5077145113- Cardiac Valve Diseases and Treatments
- Pulmonary Hypertension Research and Treatments
- Cardiac Imaging and Diagnostics
- Cardiovascular Function and Risk Factors
- Heart Rate Variability and Autonomic Control
- Complex Systems and Time Series Analysis
- Cardiac electrophysiology and arrhythmias
- Congenital Heart Disease Studies
- Time Series Analysis and Forecasting
- Cardiomyopathy and Myosin Studies
- Atrial Fibrillation Management and Outcomes
- Hormonal Regulation and Hypertension
- Renin-Angiotensin System Studies
- Aortic Disease and Treatment Approaches
- Mast cells and histamine
- Cardiac, Anesthesia and Surgical Outcomes
- Cardiovascular Issues in Pregnancy
- Cardiovascular Effects of Exercise
- Infective Endocarditis Diagnosis and Management
- Cardiac Structural Anomalies and Repair
- Pericarditis and Cardiac Tamponade
- Mechanical Circulatory Support Devices
- Cardiovascular Disease and Adiposity
- Chaos control and synchronization
- Stock Market Forecasting Methods
Institute of Cardiology
2011-2024
Cardinal Stefan Wyszyński University in Warsaw
2012-2018
Valve (United States)
2005
Instytut Matki i Dziecka
2001-2002
Multiscale entropy (MSE) was proposed to characterize complexity as a function of the time-scale factor tau. Despite its broad use, this technique suffers from two limitations: (1) artificial MSE reduction due coarse graining procedure and (2) introduction spurious oscillations suboptimal for elimination fast temporal scales. We propose refined (RMSE), we apply it simulations 24-h Holter recordings heart rate variability (HRV) obtained healthy aortic stenosis (AS) groups. The study showed...
Several studies have reported that elevated red cell distribution width (RDW) is associated with poor outcomes in patients coronary artery disease, chronic heart failure and aortic stenosis following transcatheter valve replacement. Their prognostic utility undergoing replacement (AVR) surgery unknown.We prospectively evaluated the value of RDW a group 191 consecutive severe symptomatic AVR. The pre-defined primary endpoint at 30-day follow-up was composed of: all cause mortality,...
I In nt tr ro od du uc ct ti io on n: : Dual antiplatelet therapy (DAPT) -aspirin and clopidogrel -is recommended after transcatheter aortic valve implantation (TAVI) without an evidence base.The main aim of the study was to estimate impact antithrombotic early late bleeding.Moreover, we assessed patients' characteristics bleeding influence prognosis.M Ma at te er ri ia al l a nd d m me et th ho ds s: Between 2009 2011, 83 consecutive TAVI patients, age 81.1 ±7.2 years, were...
We investigated the association between polymorphisms and haplotypes of chymase 1 gene (CMA1) left ventricular mass index (LVM/BSA) in a large cohort patients with aortic stenosis (AS). Additionally, gender differences cardiac remodeling hypertrophy were analyzed. The genetic background may affect myocardial response to pressure overload. In human tissue, CMA1 is involved angiotensin II production TGF-β activation, which are two major players pathogenesis fibrosis. Preoperative...
Renalase decreases circulating catecholamines concentration and is important in maintaining primary cellular metabolism. acts through the plasma membrane calcium ATPase 4b heart, which affects pressure overload but not exercise induced heart hypertrophy. The aim of this study was to test association between a functional polymorphism Glu37Asp (rs2296545) renalase gene left ventricular hypertrophy large cohort patients with aortic stenosis. group consisted 657 stenosis referred for valve...
Objective: Both the central nervous system and autonomic are complex physiological networks which modulate heart rate. They spatially extended, have built-in delays work on many time scales simultaneously—nonhomogeneous with multifractal dynamics. The object of our research was analysis human rate variability (HRV) using nonlinear multiscale (MMA) method for several cardiovascular diseases. HRV (night-time recordings) involved six groups patients: 61 healthy persons, 104 cases aortic valve...
In recent years the number of arterial stenosis (AS) patients has grown rapidly and valvular disease is expected to be next great epidemic. We studied a group 385 valve replacement (AVR) surgery patients, whom 16 had died in postoperational period (up 30 d after operation). Each patient heart rate variability (HRV) recording made prior operation addition full set medical diagnostics including echocardiography. formed age, sex, New York Heart Association (NYHA) class, BMI adjusted control...
ENWEndNote BIBJabRef, Mendeley RISPapers, Reference Manager, RefWorks, Zotero AMA Stokłosa P, Szymański Dąbrowski M, et al. Original paperThe impact of transcatheter aortic valve implantation on left ventricular performance and wall thickness – single-centre experience. Advances in Interventional Cardiology/Postępy w Kardiologii Interwencyjnej. 2015;11(1):37-43. doi:10.5114/pwki.2015.49183. APA Stokłosa, P., Szymański, Dąbrowski, M., Zakrzewski, D., Michałek, & Orłowska-Baranowska, E....
In the present document multiscale entropy (MSE) methodology has been applied to analyze complex behavior of heart rate variability (HRV), in patients with aortic stenosis (AS). A set healthy voluntaries have used as a control group. MSE analysis calculates an over different time scales assess complexity series, evaluating short-term and long-term correlations. Daytime nighttime considered study variations inside same group population. statistical showed that was significantly higher...
Extraction of stochastic and deterministic components from empirical data—necessary for the reconstruction dynamics system—is discussed. We determine both using Kramers-Moyal expansion. In our earlier papers, we obtained large fluctuations in magnitude terms rare or extreme valued events data. Calculations such are burdened by an unsatisfactory quality statistics. general, method is sensitive to binning procedure applied construction histograms. Instead commonly used constant width bins, use...
The aim of the study was to investigate incidence syncope and aborted cardiac arrest in patients with AS analyze whether simple clinical, electrocardiographic (ECG), echocardiographic parameters can be markers these complications. PATIENTS AND METHODSThis a retrospective involving 514 consecutive isolated before valve replacement (data collection, 1995-2008).AS diagnosed on basis medical history, physical examination, echocardiography.Patients coexisting significant mitral or tricuspid...
Surgical aortic valve replacement (AVR) still remains the treatment of choice in symptomatic significant stenosis (AS).Due to technical problems, extensive calcification ascending aorta ("porcelain aorta") is an additional risk factor for surgery and transapical implantation (TAAVI) likely be only rescue procedure this group patients.We describe case 81-year-old woman with severe AS "porcelain aorta", whom available life-saving intervention was TAAVI.
Introduction: Aortic valve calcification (AVC) is the most common cause of aortic stenosis.The aim study was to assess prevalence valve, coronary artery and calcifications evaluate correlation between arteries aorta.Material methods: The included 499 patients aged 60 years over who underwent computed tomography because chest pain.Beside calcium score (CAC), we evaluated AVC ascending aorta (AAC).Results: found in 144 subjects (28.9% whole population).Prevalence CAC AAC higher than amounted...
In this study the 24-h Heart Variability Signals (HRV) of 206 patients with Aortic Stenosis (AS) and 68 healthy subjects (NRM) were analyzed, using dynamical nonlinear analysis to compare complexity signals between these two groups during morning (7-12h), afternoon (15-20h) night (0-5h). The defines an initial window 10,000 beats calculates Correlation Dimension (CD) as a non-linear index. Then is moved 2,500 on time series CD new calculated. This process repeated until whole signal...