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Gyanendra Sharma - One of the best experts on this subject based on the ideXlab platform.
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Saddle Pulmonary Embolism Visualized by Transthoracic Echocardiography
Journal of the American College of Cardiology, 2010Co-Authors: Somsupha Kanjanauthai, Lindsey A. Couture, Mulugeta Fissha, Mindy Gentry, Gyanendra SharmaAbstract:![Figure][1] [![Graphic][3] ][3][![Graphic][4] ][4] It is very unusual to visualize a pulmonary artery thrombus on Transthoracic Echocardiography (TTE). TTE obtained from a 50-year-old man with syncope showed a large thrombus at the main pulmonary trunk ( A , arrow , [Online
Navin C. Nanda - One of the best experts on this subject based on the ideXlab platform.
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Simulation for Transthoracic Echocardiography of aortic valve.
Annals of cardiac anaesthesia, 2016Co-Authors: Navin C. Nanda, Kanwal K. Kapur, Poonam Malhotra KapoorAbstract:Simulation allows interactive Transthoracic Echocardiography (TTE) learning using a virtual three-dimensional model of the heart and may aid in the acquisition of the cognitive and technical skills needed to perform TTE. The ability to link probe manipulation, cardiac anatomy, and echocardiographic images using a simulator has been shown to be an effective model for training anesthesiology residents in transesophageal Echocardiography. A proposed alternative to real-time reality patient-based learning is simulation-based training that allows anesthesiologists to learn complex concepts and procedures, especially for specific structures such as aortic valve.
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Usefulness of live/real time three-dimensional Transthoracic Echocardiography in the assessment of descending thoracic aorta graft dehiscence.
Echocardiography (Mount Kisco N.Y.), 2010Co-Authors: Himanshu Aggarwal, Balwinder Singh, Marcus J. Wade, James E. Davies, Navin C. NandaAbstract:We report the usefulness of live/real time three-dimensional Transthoracic Echocardiography to identify endovascular graft showing leakage not visualized using two-dimensional Transthoracic Echocardiography.
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Usefulness of live/real time three-dimensional Transthoracic Echocardiography in diagnosing acquired left ventricular-right atrial communication misdiagnosed as severe pulmonary hypertension by two-dimensional Transthoracic Echocardiography.
Echocardiography (Mount Kisco N.Y.), 2009Co-Authors: Sachin Hansalia, Jayaprakash Manda, Koteswara R. Pothineni, Navin C. NandaAbstract:We describe an adult patient with an acquired left ventricular-right atrial communication that was misdiagnosed as severe pulmonary hypertension (PH) by two-dimensional (2D) Transthoracic Echocardiography, but accurately detected on three-dimensional (3D) Transthoracic Echocardiography. Open heart surgery confirmed the defect.
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Usefulness of live/real time three-dimensional Transthoracic Echocardiography in the assessment of atrioventricular septal defects.
Echocardiography (Mount Kisco N.Y.), 2006Co-Authors: Anurag Singh, Navin C. Nanda, Robb L. Romp, Sanjay Rajdev, Farhat Mehmood, Oben Baysan, Vinod Patel, Kurt DuncanAbstract:We studied nine patients (five newborns and infants, two children, and two adults) with atrioventricular septal defects (four complete, one intermediate, and four partial) utilizing live/real time three-dimensional Transthoracic Echocardiography (3DTTE) and a 4-MHz matrix array transducer. In all patients, 3DTTE provided additional morphological and/or functional information as compared to standard two-dimensional Transthoracic Echocardiography (2DTTE). 3DTTE may be a useful supplement to 2DTTE in the assessment of atrioventricular septal defects.
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Usefulness of Live Three-Dimensional Transthoracic Echocardiography in Aortic Valve Stenosis Evaluation
The American journal of geriatric cardiology, 2004Co-Authors: Srinivas Vengala, Ashish Sinha, Navin C. Nanda, Harvinder S. Dod, Vikramjit Singh, Gopal Agrawal, Deepak Khanna, Sailendra Upendram, Anand Chockalingam, David C. McgiffinAbstract:Aortic valve stenosis (AS) severity can be estimated by various modalities. Due to some of the limitations of the currently available methods, the usefulness of live three-dimensional Transthoracic Echocardiography (3D TTE) in the assessment of AS was explored. Live 3D TTE was able to visualize the aortic valve orifice in all 11 patients studied. Live 3D TTE correctly estimated the severity of AS in all 10 patients in whom AS severity could be evaluated at surgery. These included eight patients with severe AS and two with moderate AS. Two of these 10 patients with AS had associated hypertrophic cardiomyopathy and underwent myectomy at the time of aortic valve replacement. Aortic valve orifice area measurements by live 3D TTE correlated well with intraoperative three-dimensional transesophageal echocardiographic reconstruction measurements (r=0.85) but not as well with two-dimensional transesophageal Echocardiography measurements (r=0.64). Live 3D TTE measurements of the aortic valve orifice area also did not correlate well with two-dimensional Transthoracic Echocardiography measurements (r=0.46) but the number of patients studied with two-dimensional Transthoracic Echocardiography was smaller (only seven) and four of these did not undergo two-dimensional Transthoracic Echocardiography at the authors' institution. Altogether, four patients with severe AS by live 3D TTE, and subsequently confirmed at surgery, were misdiagnosed as having moderate AS by two-dimensional Transthoracic Echocardiography. Because it is completely noninvasive and views the aortic valve in three dimensions, 3D TTE could be a useful complement to the existing modalities in the evaluation of AS severity.
Alicia Dennis - One of the best experts on this subject based on the ideXlab platform.
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Transthoracic Echocardiography in women with preeclampsia.
Current opinion in anaesthesiology, 2015Co-Authors: Alicia DennisAbstract:Recent literature on the role of Transthoracic Echocardiography in the management of women with preeclampsia is reviewed with emphasis on recommendations for its use in the life-threatening complications of acute pulmonary edema, chest pain, and hemorrhage. The diagnostic criteria for preeclampsia are closer to reaching international consensus with most guidelines now removing the mandatory requirement for proteinuria. Hemodynamic findings using Transthoracic Echocardiography in women with untreated preeclampsia include normal or increased cardiac output, normal or increased contractility, a nondilated left ventricle, diastolic dysfunction, increased pericardial effusions, and increased left ventricular mass. Echocardiography is recommended as a diagnostic and monitoring tool for acute hemodynamic complications of preeclampsia, such as acute pulmonary edema, significant arterial hypertension, and chest pain. Despite this there has been limited uptake of Transthoracic electrocardiography into routine clinical practice in women with preeclampsia. The role of Transthoracic Echocardiography in the management of women with preeclampsia is emphasized by international groups. Research into the hemodynamics in preeclampsia, which demonstrates preserved ejection fraction, and diastolic dysfunction highlights its utility and acceptability by pregnant women with preeclampsia. Training of obstetric anesthesiologists in Echocardiography is necessary to enable more widespread implementation of this important technology.
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Transthoracic Echocardiography in women with treated severe pre-eclampsia.
Anaesthesia, 2014Co-Authors: Alicia Dennis, J.m. CastroAbstract:The aim of this study was to investigate cardiac function and haemodynamic indices using Transthoracic Echocardiography in women with severe pre-eclampsia who had already received treatment interventions. Fifteen women with treated severe pre-eclampsia were studied using Transthoracic Echocardiography. Mean (SD) cardiac output in women with treated disease was 5690 (1708) ml.min(-1). Systolic function was preserved in women with treated disease evidenced by mean (SD) fractional shortening 41 (9)%, fractional area change 62 (12)% and septal s' velocities 9.0 (2.1) cm.s(-1). Left ventricle end-diastolic diameters were within healthy reference ranges at 4.7 (0.3) cm and the left ventricle was not dilated. Diastolic function was reduced, with a mean (SD) mitral valve E/septal e' ratio of 12.6 (4.1). Left ventricular mass was increased at 182.0 (44.4) g. There was large variability in haemodynamics in women with treated severe pre-eclampsia. Transthoracic Echocardiography is acceptable and applicable and enables quantification of cardiac function in women with severe pre-eclampsia.
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Haemodynamics using Transthoracic Echocardiography in healthy pregnant and non-pregnant baboons (Papio hamadryas)
Journal of medical primatology, 2012Co-Authors: Alicia Dennis, Scott Heffernan, J.m. Castro, Annemarie HennessyAbstract:Background To determine systolic and diastolic function using Transthoracic Echocardiography in the baboon (Papio hamadryas). Methods Transthoracic Echocardiography was performed in eight non-pregnant female and six pregnant baboons according to American Society of Echocardiography recommendations. Results Haemodynamic measurements were obtained from fourteen baboons. Compared to non-pregnant baboons, pregnant baboons demonstrated: (mean ± SD, pregnant vs. healthy) increased cardiac output (1615 ± 121 ml/minutes vs. 1317 ± 134 ml/minutes P = 0.001) due to an increased heart rate [120 ± 11 beats per minute (BPM) vs. 105 ± 6 BPM P = 0.018]. The inter-observer and intra-observer variability (mean difference ± SD) for the left ventricular outflow tract diameter was 0.05 ± 0.07 cm and 0.01 ± 0.03 cm respectively. There was minimal impact to the animal’s daily activities. Conclusions Transthoracic Echocardiography was applicable and reproducible for the assessment of haemodynamics in baboons thus enabling translation of animal results to human studies.
Somsupha Kanjanauthai - One of the best experts on this subject based on the ideXlab platform.
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Saddle Pulmonary Embolism Visualized by Transthoracic Echocardiography
Journal of the American College of Cardiology, 2010Co-Authors: Somsupha Kanjanauthai, Lindsey A. Couture, Mulugeta Fissha, Mindy Gentry, Gyanendra SharmaAbstract:![Figure][1] [![Graphic][3] ][3][![Graphic][4] ][4] It is very unusual to visualize a pulmonary artery thrombus on Transthoracic Echocardiography (TTE). TTE obtained from a 50-year-old man with syncope showed a large thrombus at the main pulmonary trunk ( A , arrow , [Online
Nelson B. Schiller - One of the best experts on this subject based on the ideXlab platform.
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Screening for abdominal aortic aneurysms during Transthoracic Echocardiography
American heart journal, 1995Co-Authors: Mark J. Eisenberg, Salvatore J. Geraci, Nelson B. SchillerAbstract:Patients undergoing Transthoracic Echocardiography often have atherosclerotic vascular disease and may be at risk for the development of abdominal aortic aneurysms. We therefore examined the abdominal aorta by ultrasound in 323 consecutive patients undergoing routine two-dimensional Transthoracic Echocardiography over a 6-month period. Measurements were made of aortic length (diaphragm to most caudal portion visualized) and maximum diameter. The study group comprised 169 men and 154 women with an average age of 57 ± 19 years (range 13 to 94). The abdominal aorta was imaged in 265 (82%) patients. The average aortic length visualized was 13.0 ± 4.6 cm, the average diameter 1.7 ± 0.4 cm, and the time required for screening
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diagnostic value of transesophageal compared with Transthoracic Echocardiography in infective endocarditis
Journal of the American College of Cardiology, 1991Co-Authors: Bruce K Shively, Frank T Gurule, Carlos A Roldan, James Leggett, Nelson B. SchillerAbstract:Abstract To compare the diagnostic value of transesophageal and Transthoracic Echocardiography in Infective endocarditis, paired transesophageal and transthorecic echocardiograms were obtained prospectively for 66 episodes of suspected endocarditis in 62 patients. Echocardiographic results were compared with the presence or absence of endocarditis determined by pathologic or nonechocardiograpric data from the subsequent clinical course. All echocardiograms were interpreted by an observer told only that the studies were from patients in whom the diagnosis of endocarditis was suspected. The diagnotis of endocarditis was eventually made in 16 of ihe 66 episodes of suspecrted endocarditis (14 by pathologic and 2 by clinical criteria). In 7 of 16 Transthoracic and 15 of 16 transesophageal echeocardiograms, endocarditis was diagnosed at a probability level of “almost certain,” giving a sensitivity of 44% and 94%, respectively (p This study suggests that transesophageal Echocardiography is highly sensitive and specific for the diagnosis of infective endocarditis and significantly more sensitive than Transthoracic Echocardiography. Although Echocardiography camot rule out endocarditis, the high diagnostic sensitivity of transesophageal Echocardiography results in a low probability of the disease when the studt yields negative results in a patient with an intermediate likelihood of the disease.
