Publications by authors named "Mehrnoush Toufan-Tabrizi"

Introduction: Determining the normal diameter of the abdominal aorta in different populations and its relationship with other demographic factors is crucial for diagnosing and managing abdominal aortic diseases. This study aimed to assess the size of the abdominal aorta in a healthy Iranian population.

Methods: This cross-sectional study included healthy individuals.

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Key Clinical Message: Before valvular interventions, echocardiography, especially the TEE or the ventilation/perfusion scan, should be performed to detect silent PTE and set a more accurate treatment and surgical plan.

Abstract: Pulmonary hypertension (PH) is a progressive and critical disease that can be caused by mitral stenosis (MS). Some of these patients present with disproportionate PH, which is an uncommon phenomenon and is considered a challenging diagnostic and treatment process.

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Objectives: Accurate assessment of left ventricular (LV) function is essential for managing patients with left bundle branch block (LBBB). This study aimed to evaluate the relationship between LV systolic function, left ventricular diastolic filling time (LVFT), QRS duration, and heart failure symptoms in patients with LBBB.

Methods: This study was conducted between June 2021 and June 2022.

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Bacteria, especially staphylococcal groups, cause aortic graft infection. Infection stems from synthetic materials that repair aneurysms or artery blockages. Aortic stent infection and vegetation formation are rare, and heterogeneous presentations and ambiguous findings in routine diagnostic modalities render the diagnosis challenging.

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Cardiac power output (CPO), which combines pressure and flow capacities, directly measures the heart's pumping capability. It is proposed as a superior alternative to ejection fraction in assessing cardiac function. However, there is a lack of data on CPO in healthy individuals, prompting a study to determine the cardiac power output in healthy adults in the Iranian population.

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Background: Transesophageal echocardiography (TEE) can reliably detect left atrial (LA) and LA appendage (LAA) thrombus in patients with atrial fibrillation (AF) before electrical cardioversion (ECV). However, evaluating cardiac and valve function pre-ECV can be challenging due to the increased and irregular heart rate. Additionally, post-ECV atrial stunning increases the risk of LAA thrombosis.

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Background: Atrial fibrillation (AF) is a common complication after heart surgeries. Advances in imaging technologies and an understanding of the pathophysiology of preoperative left atrial (LA) dysfunction can lead to more definitive potential therapeutic approaches. This study aimed to determine the role of conventional echocardiography and LA two-dimensional (2D) strain echocardiography in assessing LA function and predicting POAF after CABG surgery.

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Mitral valve area (MVA) measurement by three-dimensional transesophageal echocardiography (3D-TEE) has a crucial role in the evaluation of mitral stenosis (MS) severity. Three-dimensional direct (3D-direct) planimetry has been proposed as a new technique to measure mitral valve area. This study aimed to compare the 3D-direct mitral valve planimetry to conventional three-dimensional multiplanar reconstruction (3D-MPR) in severe MS using 3D-TEE.

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Purpose: Variants in genes encoding sarcomeric proteins are the most common cause of inherited cardiomyopathies. However, the underlying genetic cause remains unknown in many cases. We used exome sequencing to reveal the genetic etiology in patients with recessive familial cardiomyopathy.

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Traumatic aortic dissection is most commonly caused following sudden deceleration injury. It most commonly involves descending thoracic aorta (DTA) and is associated with high mortality and morbidity if not treated urgently. Confirmation of diagnosis often requires contrast-enhanced computed tomography (CECT) or magnetic resonance imaging (MRI), which is time consuming, expensive, and often not available at many health-care facility.

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Multiple interatrial defects, termed fenestrated ASDs that require closure are not uncommon. The problem arises when a centrally located defect or a patent foramen oval (PFO) is associated with another peripherally located defect. In cases like this, all attempts at crossing the true defect might totally fail or might be difficult because the wire or the catheter crosses the central defect repeatedly despite the use of a sizing balloon.

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Corona virus disease 2019(COVID-19) pandemic has caused a significant burden on the global health system. Considerable cardiovascular involvement has been reported among COVID-19 patients with higher ICU admission and mortality rates among patients with cardiovascular comorbidities. Consequently, diagnostic cardiovascular evaluations such as echocardiography are a crucial part of the disease management.

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Morphology of bicuspid aortic valve (BAV) may have implication in the associated pathologies including aortic stenosis (AS), aortic insufficiency (AI) and aortic dilation. The aim of this study is to investigate the frequency and patterns of valvular dysfunction and aortopathy associated with different phenotypes of BAV in a referral center in northwest of Iran. In this prospective study patients who presented to our echocardiography lab between January 2014 and December 2015 and were diagnosed with BAV were assessed.

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Background: Hypertrophic cardiomyopathy (HCM) is the leading cause of sudden cardiac death (SCD) in children and young adults and is the most frequent genetically determined cardiovascular disease following autosomal dominant pattern of inheritance. A number of genes have been shown to be responsible for HCM including MYBPC3. Cmybc, the protein encoded by MYBPC3 is a sarcomeric thick filament protein that interacts with titin, myosin, and actin to control sarcomeric gathering.

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