69 results match your criteria trans-thoracic doppler


Hemodynamic Profiles of Cardiogenic Shock Depending on Their Etiology.

J Clin Med 2020 Oct 22;9(11). Epub 2020 Oct 22.

Cardiology Department, APHM, Mediterranean Association for Research and Studies in Cardiology (MARS Cardio), Centre for CardioVascular and Nutrition Research (C2VN), Aix-Marseille Univ, INSERM 1263, INRA 1260, Hopital Nord, 13015 Marseille, France.

The pathophysiology of cardiogenic shock (CS) varies depending on its etiology, which may lead to different hemodynamic profiles (HP) and may help tailor therapy. We aimed to assess the HP of CS patients according to their etiologies of acute myocardial infarction (AMI) and acute decompensated chronic heart failure (ADCHF). We included patients admitted for CS secondary to ADCHF and AMI. Read More

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October 2020

Higher serum angiopoietin 2 levels are independently associated with coronary microvascular dysfunction in patients with angina in the absence of obstructive coronary artery disease.

Chin Med J (Engl) 2020 Jul;133(14):1662-1668

Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China.

Background: Angiopoietin-2 (Ang-2) is a type of endothelial growth factor involved in angiogenesis and vascular remodeling. Circulating Ang-2 levels are elevated in patients with obstructive coronary artery disease (CAD). This study aimed to evaluate the association between serum Ang-2 levels and coronary microvascular dysfunction in patients without obstructive CAD. Read More

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Cardio-Pulmonary Changes After Bronchoscopic Lung Volume Reduction with Endobronchial One-Way Valves.

Lung 2020 06 7;198(3):565-573. Epub 2020 Apr 7.

Thoracic Surgery Unit, Sant'Andrea Hospital, University of Rome La Sapienza, Rome, Italy.

Introduction: To evaluate the cardio-pulmonary hemodynamics changes before and after valve treatment, and their correlation with lobe volume reduction.

Methods: This retrospective multicentre study included consecutive patients undergoing bronchoscopic valve treatment for heterogeneous emphysema. In addition to standard functional evaluation, patients underwent cardiac evaluation by Doppler trans-thoracic echocardiography. Read More

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Myocardial work is a predictor of exercise tolerance in patients with dilated cardiomyopathy and left ventricular dyssynchrony.

Int J Cardiovasc Imaging 2020 Jan 12;36(1):45-53. Epub 2019 Sep 12.

CHU Rennes, Inserm, LTSI - UMR 1099, University of Rennes, 35000, Rennes, France.

The assessment of myocardial work (MW) by pressure-strain loops is a recently introduced tool for the assessment of myocardial performance. Aim of the present study is to evaluate the relationship between myocardial work and exercise tolerance in patients with dilated cardiomyopathy (DCM). 51 patients with DCM (mean age 57 ± 13 years, left ventricular ejection fraction: 32 ± 9%) underwent cardiopulmonary exercise test (CPET) to assess exercise performance. Read More

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January 2020

Traumatic Transection of Descending Thoracic Aorta Presenting as Pseudo- Coarctation.

Tanaffos 2018 Oct;17(4):295-298

Lung Transplantation Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Thoracic Aortic Injury (TAI) due to penetrating or blunt chest trauma is a critical life-threatening aortic injury. Its diagnosis and treatment always is challenging. An 18-year-old male was admitted due to blunt chest trauma after a high-impact road traffic collision. Read More

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October 2018

The effect of DPP-4-protected GLP-1 (7-36) on coronary microvascular function in obese adults.

Int J Cardiol Heart Vasc 2019 Mar 29;22:139-144. Epub 2019 Jan 29.

Department of Endocrinology, Bispebjerg University Hospital, Copenhagen, Denmark.

Objective: Glucagon-like-peptide-1 (GLP-1) receptor analogues have been shown to reduce cardiovascular events in patients with type 2 diabetes. However, the mechanism behind is still unknown. The aim of the study was to investigate the effect of intact GLP-1 (7-36) on coronary microcirculation in overweight adults. Read More

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Automatic Estimation of Coronary Blood Flow Velocity Step 1 for Developing a Tool to Diagnose Patients With Micro-Vascular Angina Pectoris.

Front Cardiovasc Med 2019 22;6. Epub 2019 Jan 22.

Stavanger University Hospital Department of Cardiology, Stavanger, Norway.

Our aim was to automatically estimate the blood velocity in coronary arteries using cine X-ray angiographic sequence. Estimating the coronary blood velocity is a key approach in investigating patients with angina pectoris and no significant coronary artery disease. Blood velocity estimation is central in assessing coronary flow reserve. Read More

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January 2019

Board examination stress effect on diastolic function.

J Clin Ultrasound 2019 Mar 12;47(3):139-143. Epub 2018 Nov 12.

Cardiology Department, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.

Background: To this date, effects of mental stress on cardiac function have not been clearly investigated. Although hemodynamic and neuroendocrine adverse effects of daily mental stress on cardiovascular morbidity and mortality have been reported, its direct impact on diastolic function of the heart has not been previously studied. In this study, we aimed to assess the role of Board Exam anxiety on right and left ventricular diastolic function in medical residents. Read More

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Assessment of right ventricular function by echocardiography in patients with chronic heart failure.

Egypt Heart J 2018 Sep 31;70(3):173-179. Epub 2018 Aug 31.

Cardiology Department, Ain Shams University Hospital, Cairo, Egypt.

Background: The main focus of most of the studies in heart failure (HF) is the assessment of the left ventricular functions, while the right ventricle was much less studied. Much of this neglect is due to the complexity of anatomy and physiology of the right ventricle which are considered challenges during assessment of RV.

Objective: [1] To review the alterations of right ventricular dimensions & function associated with chronic heart failure. Read More

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September 2018

Significant left ventricular outflow tract obstruction secondary to systolic anterior motion in a patient without hypertrophic cardiomyopathy: An echocardiographic study.

J Saudi Heart Assoc 2018 Oct 30;30(4):336-339. Epub 2018 Jul 30.

Internal Medicine Department, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.

Dynamic left ventricular outflow tract obstruction (LVOTO) can be hemodynamically significant and can adversely affect the heart and quality of life. It is caused by systolic anterior motion (SAM) of the anterior mitral valve into the LVOT. The mechanism underlying SAM has been an area of special interest. Read More

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October 2018

Echocardiographic parameters and renal outcomes in patients with preserved renal function, and mild- moderate CKD.

BMC Nephrol 2018 07 11;19(1):176. Epub 2018 Jul 11.

Renal Division, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA.

Background: Echocardiographic characteristics across the spectrum of chronic kidney disease (CKD) have not been well described. We assessed the echocardiographic characteristics of patients with preserved renal function and mild or moderate CKD referred for echocardiography and determined whether echocardiographic parameters of left ventricular (LV) and right ventricular (RV) structure and function were associated with changes in renal function and mortality.

Methods: This retrospective cohort study enrolled all adult patients who had at least one trans-thoracic echocardiography between 2004 and 2014 in our institution. Read More

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Maximum velocity estimation in coronary arteries using 3D tracking Doppler.

IEEE Trans Ultrason Ferroelectr Freq Control 2018 Apr 16. Epub 2018 Apr 16.

Several challenges currently prevent the use of Doppler echocardiography to assess blood flow in the coronary arteries. Due to the anatomy of the coronary tree, out-of-plane flow and high beam-to-flow angles easily occur. Transit time broadening in regions with high velocities leads to overestimation of the maximum velocity envelope, which is a standard clinical parameter for flow quantification. Read More

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Maximum Velocity Estimation in Coronary Arteries Using 3-D Tracking Doppler.

IEEE Trans Ultrason Ferroelectr Freq Control 2018 07;65(7):1102-1110

Several challenges currently prevent the use of Doppler echocardiography to assess blood flow in the coronary arteries. Due to the anatomy of the coronary tree, out-of-plane flow and high beam-to-flow angles easily occur. Transit-time broadening in regions with high velocities leads to overestimation of the maximum velocity envelope, which is a standard clinical parameter for flow quantification. Read More

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Noninvasive hemodynamic monitoring of septic shock in children.

World J Methodol 2018 Jun 28;8(1):1-8. Epub 2018 Jun 28.

Neonatal Intensive Care Unit, Oasis Hospital, Al Ain 1016, United Arab Emirates.

Septic shock in children is associated with high mortality and morbidity. Its management is time-sensitive and must be aggressive and target oriented. The use of clinical assessment alone to differentiate between cold and warm shock and to select the appropriate inotropic and vasoactive medications is fraught with errors. Read More

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Evaluation of Cardiovascular Toxicity Associated with Treatments Containing Proteasome Inhibitors in Multiple Myeloma Therapy.

High Blood Press Cardiovasc Prev 2018 Jun 26;25(2):209-218. Epub 2018 Mar 26.

Hypertension Unit, Division of Internal Medicine, Department of Medical Sciences, University Hospital "Città della Salute e della Scienza", University of Torino, Turin, Italy.

Introduction: Recently new treatment options have substantially increased survival for patients with relapsed and/or refractory multiple myeloma (RRMM). Among these, proteasome inhibitors (PI), such as bortezomib and carfilzomib, offer high response rate and prolonged survival. These agents are generally well tolerated but demonstrated a significant cardiovascular toxicity, mostly for regimen containing carfilzomib. Read More

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A dairy worker with fever and an abnormal echocardiogram.

Heart Asia 2017 11;9(2):e010915. Epub 2017 Jul 11.

Department of Cardiology, Christian Medical College and Hospital, Vellore, India.

Description Of The Case: A 38-year-old male presented with history of progressively increasing dyspnoea of 25 days duration. He gave history of low -grade fever associated with malaise and weight loss over the preceding 6 months. He worked in the dairy industry in the Middle East and returned to India owing to his illness. Read More

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Bachmann bundle pacing reduces atrial electromechanical delay in type 1 myotonic dystrophy patients.

J Interv Card Electrophysiol 2018 Apr 27;51(3):229-236. Epub 2018 Feb 27.

Chair of Cardiology, University of Campania "Luigi Vanvitelli", Monaldi Hospital, Naples, Italy.

Background: Atrial electromechanical delay (AEMD) is an echocardiographic parameter correlated with the onset of supraventricular arrhythmias in several clinical conditions. Inter-atrial septal pacing in the region of Bachmann's bundle (BB) has been shown to be safe and feasible in myotonic dystrophy type 1 (DM1) patients, with a low rate of sensing and pacing defects. The aim of this study was to assess the impact of temporary BB pacing compared with right atrial appendage (RAA) pacing on AEMD in DM1 patients undergoing pacemaker (PM) implantation for cardiac rhythm abnormalities. Read More

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The Dark Side of the Moon: The Right Ventricle.

J Cardiovasc Dev Dis 2017 Oct 20;4(4). Epub 2017 Oct 20.

Fondazione Giovanni Paolo II, 86100 Campabasso, Italy.

The aim of this review article is to summarize current knowledge of the pathophysiology underlying right ventricular failure (RVF), focusing, in particular, on right ventricular assessment and prognosis. The right ventricle (RV) can tolerate volume overload well, but is not able to sustain pressure overload. Right ventricular hypertrophy (RVH), as a response to increased afterload, can be adaptive or maladaptive. Read More

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October 2017

Comprehensive echocardiographic assessment of biventricular function in the rabbit, animal model in cardiovascular research: feasibility and normal values.

Int J Cardiovasc Imaging 2018 Mar 24;34(3):367-375. Epub 2017 Aug 24.

The Labatt Family Heart Center, Hospital for Sick Children and University of Toronto, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.

Quantification of cardiac structure and function is central in cardiovascular research. Rabbits are valuable research models of cardiovascular human disease; however, there is little normal data available. The aim of this study was to investigate feasibility and provide normal values for comprehensive echocardiographic assessment of biventricular function in rabbits. Read More

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Evaluation of Myocardial Injury using Standard Diagnostic Tools and Tissue Doppler Imaging in Blunt Trauma Chest.

J Clin Diagn Res 2017 Jun 1;11(6):OC33-OC36. Epub 2017 Jun 1.

Intern, Department of Surgery, Dayanand Medical College and Hospital, Ludhiana, Punjab, India.

Introduction: Myocardial contusion is an entity in chest trauma which is difficult to diagnose. Current practice relies more on cardiac-specific biochemical markers and standard echocardiography, but no gold standard test exists. The application of Tissue Doppler imaging is yet unexplored. Read More

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Prevalence of factors related to vascular calcifications in patients with chronic kidney disease on dialysis.

Medicina (B Aires) 2017 ;77(3):207-213

División Nefrología, Hospital Británico, Buenos Aires, Argentina.

The main aim of the study was to determine the prevalence of vascular calcifications in patients with chronic kidney disease on dialysis in our population assessed by X-ray. The secondary objectives were to determine the cardiovascular risk factors associated with the presence of vascular calcifications and to evaluate the complementary use of the echocardiogram in a cross-sectional, observational, multicentric study. We included patients with chronic kidney disease on dialysis, age =18 years with at least 3 months of renal replacement therapy in 8 dialysis centres in Argentina. Read More

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Pulmonary hypertension: prevalence and risk factors.

Int J Cardiol Heart Vasc 2016 Jun 9;11:87-89. Epub 2016 May 9.

Department of Nephrology, Dialysis and Renal Transplantation, Ibn Rochd University Hospital of Casablanca, 1, Quartier des Hôpitaux, Casablanca 20100, Morocco.

Introduction: Pulmonary arterial hypertension (PAH), defined as a systolic pulmonary artery pressure above 35 mm Hg, is another vascular disease entity recently described in patients receiving hemodialysis. It is a major problem due to its high prevalence and morbidity and mortality. Its pathophysiological mechanism is just known and the strategies for its supported not yet defined. Read More

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Minimally Invasive Transverse Aortic Constriction in Mice.

J Vis Exp 2017 03 14(121). Epub 2017 Mar 14.

School of Biological Sciences, The University of Hong Kong;

Minimally invasive transverse aortic constriction (MTAC) is a more desirable method for the constriction of the transverse aorta in mice than standard open-chest transverse aortic constriction (TAC). Although transverse aortic constriction is a highly functional method for the induction of high pressure in the left ventricle, it is a more difficult and lengthy procedure due to its use of artificial ventilation with tracheal intubation. TAC is oftentimes also less survivable, as the newer method, MTAC, neither requires the cutting of the ribs and intercostal muscles nor tracheal intubation with a ventilation setup. Read More

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Assessment of trans-aortic pressure gradient using a coronary pressure wire in patients with mechanical aortic and mitral valve prostheses.

Catheter Cardiovasc Interv 2018 07 15;92(1):193-199. Epub 2017 Mar 15.

Division of Cardiology, Icahn School of Medicine at Mount Sinai, New York, New York.

Accurate evaluation of trans-aortic valvular pressure gradients is challenging in cases where dual mechanical aortic and mitral valve prostheses are present. Non-invasive Doppler echocardiographic imaging has its limitations due to multiple geometric assumptions. Invasive measurement of trans-valvular gradients with cardiac catheterization can provide further information in patients with two mechanical valves, where simultaneous pressure measurements in the left ventricle and ascending aorta must be obtained. Read More

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Arterial-ventricular coupling and parameters of vascular stiffness in hypertensive patients: Role of gender.

JRSM Cardiovasc Dis 2017 Jan-Dec;6:2048004017692277. Epub 2017 Feb 1.

Department of Clinical and experimental Medicine, University of Pisa, Italy.

Objective: Non-invasive estimation of arterial-ventricular coupling has been extensively used for the evaluation of cardiovascular performance, however, a relative small amount of data is available regarding arterial-ventricular coupling and its components in hypertension. The present study was designed to investigate the relationship between left ventricular elastance, arterial elastance, parameters of vascular stiffness and the influence of gender in a population of hypertensive individuals.

Methods: In 102 patients, trans-thoracic cardiac ultrasound, parameters of aortic stiffness (carotid-femoral pulse wave velocity) and wave reflection (augmentation index) were recorded. Read More

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February 2017

Left ventricular diastolic dysfunction in normotensive postmenopausal women with type 2 diabetes mellitus.

Cardiol J 2017 26;24(1):51-56. Epub 2016 Sep 26.

ASL Brindisi, Cardiology Equipe, District of Brindisi, Italy.

Background: The prevalence of heart failure among diabetic patients is high, also in those with normal blood pressure and without coronary artery disease, even when electrocardiogram (ECG) is normal. The goal of our study was to assess the prevalence of left ventricular diastolic dysfunction (LVDD) among diabetic women (DW) and its correlation with glycosylated hemoglobin (HbA1c) levels, obesity status, and ECG parameters.

Methods: A group of 456 consecutive normotensive postmenopausal women affected by type 2 diabetes, diagnosed over 5 years, were enrolled. Read More

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Right-to-left shunt detection sensitivity with air-saline and air-succinil gelatin transcranial Doppler.

Int J Stroke 2016 Feb;11(2):229-38

Neurosonology Laboratory, Stroke Unit, Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy

Background: Air-saline transcranial Doppler is nowadays the first-choice examination to identify right-to-left shunt. To increase right-to-left shunt detection in echocardiography, cardiologists also use air-gelatin mixtures, which are more stable, more echogenic, and easier to be prepared.

Aim: We assessed the sensitivity of air-gelatin compared with air-saline for transcranial Doppler right-to-left shunt detection. Read More

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February 2016

Isolated double-orifice mitral valve: a case report.

BMC Cardiovasc Disord 2015 Dec 18;15:172. Epub 2015 Dec 18.

Department of Cardiology, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland.

Background: Double-orifice mitral valve is an extremely rare cardiac anomaly possibly originating from insufficient endocardial fusion in embryogenesis. Severe concomitant cardiac anomalies and malfunction of the valve usually lead to an early diagnosis in childhood. Therefore the prevalence of isolated double-orifice mitral valve in adulthood is not known. Read More

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December 2015

Nonalcoholic Fatty Liver Disease Is Independently Associated with Early Left Ventricular Diastolic Dysfunction in Patients with Type 2 Diabetes.

PLoS One 2015 7;10(8):e0135329. Epub 2015 Aug 7.

Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy.

Accumulating evidence suggests that nonalcoholic fatty liver disease (NAFLD) is associated with left ventricular diastolic dysfunction (LVDD) in nondiabetic individuals. To date, there are very limited data on this topic in patients with type 2 diabetes and it remains uncertain whether NAFLD is independently associated with the presence of LVDD in this patient population. We performed a liver ultrasonography and trans-thoracic echocardiography (with speckle-tracking strain analysis) in 222 (156 men and 66 women) consecutive type 2 diabetic outpatients with no previous history of ischemic heart disease, chronic heart failure, valvular diseases and known hepatic diseases. Read More

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Effect of the glucagon-like peptide-1 analogue liraglutide on coronary microvascular function in patients with type 2 diabetes - a randomized, single-blinded, cross-over pilot study.

Cardiovasc Diabetol 2015 Apr 22;14:41. Epub 2015 Apr 22.

Department of Cardiology, Bispebjerg University Hospital, Bispebjerg Bakke 23, 2400, Copenhagen NV, Denmark.

Background: Impaired coronary microcirculation is associated with a poor prognosis in patients with type 2 diabetes. In the absence of stenosis of major coronary arteries, coronary flow reserve (CFR) reflects coronary microcirculation. Studies have shown beneficial effects of glucagon-like peptide-1 (GLP-1) on the cardiovascular system. Read More

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