A5059837547- Congenital Heart Disease Studies
- Cardiac Valve Diseases and Treatments
- Cardiac Structural Anomalies and Repair
- Cardiovascular Function and Risk Factors
- Cardiovascular and Diving-Related Complications
- Aortic Disease and Treatment Approaches
- Vascular anomalies and interventions
- Coronary Artery Anomalies
- Infective Endocarditis Diagnosis and Management
- Cardiac Arrhythmias and Treatments
- Cardiac pacing and defibrillation studies
- Pulmonary Hypertension Research and Treatments
- Cardiac Imaging and Diagnostics
- Cardiovascular Conditions and Treatments
- Cardiovascular Issues in Pregnancy
- Mechanical Circulatory Support Devices
- Cardiac electrophysiology and arrhythmias
- Cardiomyopathy and Myosin Studies
- Cardiac tumors and thrombi
- Cardiac and Coronary Surgery Techniques
- Renal and Vascular Pathologies
- Congenital Diaphragmatic Hernia Studies
- Wireless Power Transfer Systems
- Coronary Interventions and Diagnostics
- Tracheal and airway disorders
Tehran University of Medical Sciences
2016-2025
Shariati Hospital
2017-2025
University of Tehran
2006-2024
Tehran Heart Center
2006-2022
Islamic Azad University, Yazd
2020-2022
Shaheed Rajaei Cardiovascular Medical and Research Center
2017
The CD133(+) bone marrow cell (BMC) population includes primitive multipotent stem cells which induce neoangiogenesis. Studies suggested transplantation of these to infarcted myocardium can have a favorable impact on tissue perfusion and contractile performance. We assessed the feasibility, safety functional outcomes autologus BMC during coronary artery bypass grafting (CABG) in patients with recent myocardial infarction. In prospective, nonrandomized, open-label study, 27 infarction...
Abstract BACKGROUND There is an ongoing controversy about harms and benefits of angiotensin-converting enzyme inhibitors (ACEIs) angiotensin II receptor blockers (ARBs) in hypertensive patients with coronavirus disease 2019 (COVID-19). Given the unresolved debate, we investigated association ARBs in-hospital outcomes these patients. METHODS In this retrospective observational study, studied COVID-19 who referred to Sina Hospital Tehran, Iran, from 20 February 29 May 2020. Patients either...
Background: This study aimed to compare the time-to-peak systolic contraction time (Tc) by color-coded anatomical M-mode (AMM), strain (Tst) rate imaging (SRI), and velocity (Ts) tissue Doppler (TDI) in left (LV) right (RV) ventricular segments of normal subjects. We also sought determine relationship between these methods for defining asynchrony indices Methods: Conventional echocardiography, AMM, SRI, TDI were performed on 44 healthy adult volunteers (at Tehran Heart Center Shariati...
In 258 patients with left main tract disease, the atherosclerotic risk factors were compared between ostial and nonostial lesions of coronary artery. Also, it was done for right Women more likely to have artery and/or A multivariate logistic regression analysis revealed that female sex (odds ratio: 2.336) hypertriglyceridemia 1.004) independent lesion. For lesion, family history disease predictors. Ostial strongly correlated. The demographic clinical profiles stenosis suggest this group may...
Background: Echocardiographic measurements of time‐to‐peak systolic velocities (Ts) are helpful for assessing the degree cardiac asynchrony. We assessed ventricular asynchrony in structurally normal heart according to Ts by tissue Doppler imaging. Methods: performed conventional echocardiography and velocity imaging 65 healthy adult volunteers measure 12 left segments mid basal levels delay standard deviation (SD) all segments. Six frequently used markers dyssynchrony were measured also...
Objectives The purpose of this study was to investigate whether systolic mechanical dyssynchrony occurs in hypertensive patients with a normal coronary artery and ejection fraction its relationship different degrees left ventricular (LV) hypertrophy. Methods A total 125 angiographically (42.4% male; mean age ± SD, 57.16 8.26 years) an greater than 50% were included, which 84 41 normotensive. categorized into 3 groups: no, mild, moderate LV Tissue Doppler deformation imaging parameters...
Aim To study whether there is any relation between left atrial ( LA ) size or function and the level of ventricular dyssynchrony LV in patients with heart failure. Method Fifty‐two (male 34, mean age = 65.77 ± 8.69 years) ejection fraction (EF) <35%, who were candidates for cardiac resynchronization therapy CRT ), underwent conventional transthoracic echocardiography tissue Doppler imaging TDI ). Intra‐ventricular dyssynchrony, inter‐ventricular mechanical IVMD related time intervals...
To quantify the normal peak mean systolic velocities and strain rate parameters in left ventricle (LV) right (RV) define their regional differences adult hearts.Sixty-nine healthy volunteers (42% male; age ± SD, 30.03 5.35 years) underwent color tissue Doppler imaging. The first second velocities, strain, ejection phase were determined for 16 LV segments, apex (17th segment), 3 RV free wall segments.The velocity was measurable less than 50% of segments inferior septal (-posterior) walls...
Objectives: Transcatheter closure of a secundum atrial septal defect (ASD II) has become an effective alternative for surgical treatment.In this study we evaluated the correlation between two-dimensional transoesophageal echocardiographic (2D TEE) sizing ASDs and actual diameter occluders in patients undergoing device closure.Methods: The records 54 who underwent transcatheter ASD were reviewed.ASD characteristics maximum using preprocedure 2D TEE images.Appropriate size was determined by...
Abstract Background Many previous studies have evaluated the impact of mitral valve (MV) deformity scores on percutaneous transvenous commissurotomy (PTMC) outcome in patients with stenosis; however, relationship between annulus calcification (MAC) and PTMC result has not yet been established. The current study aimed to investigate whether MAC could independently influence immediate PTMC. Methods Of all undergoing our institution April 2005 November 2009, we included 87 (28.7%male, mean ± SD...
Objectives It is not clear whether the presence and degree of chronic ischemic mitral regurgitation (IMR) in patients with left ventricular (LV) dysfunction are related to LV dysfunction, local remodeling or valve deformation. We sought establish strongest determinants IMR severity IMR. Methods prospectively performed transthoracic echocardiography for 135 (mean age = 60.76 ± 9.69 years, 71.9% male) (ejection fraction ≤ 50%) coronary artery disease (70% stenosis ≥1 no myocardial infarction...
Abstract Purpose To investigate the clinical and echocardiographic predictors of super‐response to cardiac resynchronization therapy (CRT) in heart failure patients. Methods We retrospectively collected data from 97 patients, who underwent CRT were followed up (median time = 20.33 months). All had left ventricular ejection fraction (LVEF) ≤35%, New‐York‐Heart‐Association class 3 or 4, Q wave, R wave S (QRS) duration >120 ms. Time‐to‐peak systolic velocity was measured for individual LV...
Background: Assessment of left ventricular (LV) dyssynchrony has an important role in optimizing the selection cardiac resynchronization therapy (CRT) candidates. We compared a new semiautomatic echocardiographic modality, tissue synchronization imaging (TSI) with manual method, color‐coded Doppler (TDI), assessment LV patients heart failure (HF). Methods: Ninety‐five (age = 54.5 ± 17.1 years, 66.3% male) advanced HF (NYHA functional class ≥III and ejection‐fraction ≤35%) were included study...
Objective To determine normal values for tissue velocity imaging ( TVI ) and strain rate SRI in the left atrium LA right RA subjects. Methods A total of 63 healthy volunteers (50.8% male, age: 20–50 years) prospectively underwent . The peak systolic TV s), ST s) SR early late diastolic velocities e a), a) were measured base mid walls roofs. Results By , s decreased significantly from basal to mid‐level roof. Mean Tva reduced mean increased remarkably roof also s, a For e, changes significant...