Search Results
Results 201 - 250 of 298
< 1 2 3 4 5 6 >
Ambrosi Christina M CM Washington University in St. Louis, Department of Biomedical Engineering, 1 Brookings Drive, Campus Box 1097, St. Louis, Missouri 63130, - - 2009
Optical coherence tomography (OCT) allows for the visualization of micron-scale structures within nontransparent biological tissues. For the first time, we demonstrate the use of OCT in identifying components of the cardiac conduction system and other structures in the explanted human heart. Reconstructions of cardiac structures up to 2 mm below ...
Osaki Satoru - - 2010
The purpose of this study is to investigate the potential availability of hearts from adult donation after cardiac death (DCD) donors within an acceptable hypoxic period. We retrospectively reviewed a donor database from the University of Wisconsin Organ Procurement Organization Donor Tracking System between 2004 and 2006. The DCD population ...
Calleja Anna M - - 2009
Uterine leiomyosarcoma metastatic to multiple cardiac chambers occurs infrequently. Over the past 4 decades, there have been only 11 reported cases of cardiac metastasis secondary to uterine leiomyosarcoma. Metastatic cardiac tumors are commonly diagnosed postmortem, although it may be possible to diagnose them during life. The authors report a rare ...
Azim Hamdy - - 2009
HER2 gene plays a pivotal role in the pathogenesis of 20% of breast cancer patients. At the same time, it is one of the main cardiac survival pathways when subjected to bio-mechanical stress including exposure to anthracyclines. With the emergence of the anti-HER2 targeting agents, concerns raised regarding the potential ...
Jebelli Mohammad - - 2009
A 50-year-old man with a history of left ventricular aneurysmectomy was evaluated with a 64-multislice computed tomogram, which demonstrated left ventricular enlargement and a pseudoaneurysm at the apicolateral side. The images were critical to our management. We resected the pseudoaneurysm with an excellent outcome.
Prins Daniel - - 2009
An understanding of cardiac pathologies and the molecular mechanisms thereof is essential for the development of therapies for cardiovascular disease, a common cause of death in Western societies. Investigations into heart diseases have shown that the endoplasmic reticulum and its diverse functions may lie at the center of many cardiac ...
Johri Amer - - 2009
Primary cardiac lymphomas are rare extranodal lymphomas that should be distinguished from secondary cardiac involvement by disseminated non-Hodgkin's lymphoma. Cardiac lymphomas often mimic other cardiac neoplasms, including myxomas and angiosarcomas, and often require multimodality cardiac imaging, in combination with endomyocardial biopsy, excisional biopsy or pericardial fluid cytology, to establish a ...
Benchimol-Barbosa Paulo Roberto - - 2010
Cardiac remodeling has been recently investigated in long term follow-up introducing a simple exponential model to describe the time course of cardiac function and dimension changes in Chagas' disease. In the present study, an improved mathematical model to equate time course and cardiac functional changes has been proposed. Present model ...
Wilson Kevin - - 2009
Electrophysiological cardiac data mapping is an essential tool for the study of cardiac rhythm disorders, such as atrial fibrillation. Over the past decade, various advanced cardiac mapping systems have been developed to create detailed cardiac maps and assist physicians in diagnosis and therapy guidance. While these systems have increased the ...
Liu Yang - - 2009
Cardiac myosin is the most abundant and bioactive protein presented in heart tissue. In this work, a simple method was described for preparation of high purity cardiac myosin for further research. With the use of a domestic pig left ventricle as the starting tissue, this method yielded 4.5 mg myosin ...
Chen C - - 2009
Anthracyclines are very potent drugs in the therapy of malignancies in childhood. The major dose limiting adverse effect of these drugs is the risk of dilated cardiomyopathy. We performed a retrospective study on 168 patients who were treated with anthracyclines for a malignant disease with or without chest radiation at ...
Clerico Aldo - - 2009
BACKGROUND: The discovery of cardiac natriuretic hormones determined a radical revision of the concept of heart function. It is now clear that the heart is not merely a pump but, through its endocrine function, exerts a nodal role in a complex information network. As a matter of fact the heart ...
Onuma Mamoru - - 2009
As ferrets can suffer from a wide variety of cardiac disorders, indicators for detecting cardiac abnormalities on plain chest radiography are necessary. A total of 64 ferrets without heart disease underwent radiography in the right lateral (RL) and ventrodorsal positions (VD), and the lengths of the RL-sixth dorsal vertebra (6th ...
Lin Lung-Chun - - 2009
A 49-year-old man with an 11 year history of dilated cardiomyopathy presented with a worsening of symptoms associated with an upper respiratory tract infection. During his hospitalisation, a central venous catheter (CVC) was inserted and this was complicated by pulmonary infarct from an air embolism. The infarct had the appearance ...
Rimbaud Stéphanie - - 2009
Cardiac performance depends on a fine balance between the work the heart has to perform to satisfy the needs of the body and the energy that it is able to produce. Thus, energy production by oxidative metabolism, the main energy source of the cardiac muscle, has to be strictly regulated ...
Damy Thibaud - - 2009
BACKGROUND: The tripeptide glutathione (L-gamma-glutamyl-cysteinyl-glycine) is essential to cell survival, and deficiency in cardiac and systemic glutathione relates to heart failure progression and cardiac remodelling in animal models. Accordingly, we investigated cardiac and blood glutathione levels in patients of different functional classes and with different structural heart diseases. METHODS: Glutathione ...
Ahmed Imdad - - 2009
We present two cases of cardiac arrest, presumably attributable to apical hypertrophic cardiomyopathy(HCM). The first case was a 37-year-old Asian man known to have an apical HCM and was successfully resuscitated from an "out of hospital" ventricular fibrillation arrest. He underwent an electrophysiological study that was unable to induce tachyarrhythmias, ...
Raghu K G - - 2009
Arsenic trioxide (ATO/As2O3) is a promising drug for patients with a relapse of acute promyelocytic leukemia (APL); however, it frequently causes fatal arrhythmias. This study aims to investigate the various cellular and molecular mechanisms of adverse cardiac effects and the electrophysi-ological alterations caused by As2O3. We show the dose-dependent effect ...
Taneja Anil K - - 2009
A man in his 30s presented with symptoms of shortness of breath (SOB). He was on clozapine for schizophrenic symptoms. From the initial two presentations it was thought to be and managed as a chest infection, and a perfusion ventilation scan was done to rule out pulmonary embolism. However, with ...
Hussain Abdulzahra - - 2009
A 29-year-old man presented with a 3 day history of right lower quadrant pain, nausea and vomiting. There was tenderness in the right lower quadrant. At surgery the appendix was normal but an infarcted terminal ileum segment was found and resected. Histopathological examination was suggestive of vasculitis. The patient was ...
Mehrhof Felix - - 2009
The case of a 32-year-old man with sustained ventricular tachycardia and hypotension is described. Following pharmacological treatment the patient switched to a sinus rhythm and was transferred to a university hospital for further diagnostic procedures and treatment. Cardiac catherisation ruled out underlying coronary artery disease, and cardiac MRI as well ...
Luczak Elizabeth D ED Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, Colorado 80309, USA. - - 2009
Biological sex plays an important role in normal cardiac physiology as well as in the heart's response to cardiac disease. Women generally have better cardiac function and survival than do men in the face of cardiac disease; however, this sex difference is lost when comparing postmenopausal women with age-matched men. ...
Chizner Michael A - - 2008
Cardiac auscultation, long considered the centerpiece of the cardiac clinical examination, is rapidly becoming a lost art. Inadequate emphasis on the essentials of cardiac auscultation has resulted from the widespread availability of more elaborate and expensive "high-tech" diagnostic and therapeutic methods, particularly Doppler echocardiography. However, sophisticated high technology is not ...
Khemiri Monia - - 2008
BACKGROUND: Cardiac rhabdomyoma is the most common cardiac tumour in childhood and is often associated to tuberous sclerosis (TS). However, a neonatal cardiac failure was uncommonly reported as the first manifestation of tuberous sclerosis. AIM: We report a case of a cardiac tumour revealed by a heart failure in a ...
Seguchi Osamu - - 2007
Marked sarcomere disorganization is a well-documented characteristic of cardiomyocytes in the failing human myocardium. Myosin regulatory light chain 2, ventricular/cardiac muscle isoform (MLC2v), which is involved in the development of human cardiomyopathy, is an important structural protein that affects physiologic cardiac sarcomere formation and heart development. Integrated cDNA expression analysis ...
Ai J - - 2007
Vagal efferent axons from the nucleus ambiguus (NA) innervate ganglionated plexuses in the dorsal surface of cardiac atria, which in turn, may have different functional roles in cardiac regulation. However, the morphology and topography of vagal efferent projections to these ganglionated plexuses in rats and mice have not been well ...
Nanda Sudip - - 2007
We report an extremely rare cause of elevated jugular venous pulse where two esoteric causes for the same-cardiac volvulus and cardiac herniation have occurred together. Echocardiographic evidence for making the diagnosis of cardiac volvulus--subcostal long axis, subcostal short axis, and suprasternal views--have been presented. Awareness of this complication is necessary ...
Lutz Charles J - - 2007
: Left ventricular thrombus is a rare entity usually associated with myocardial infarction. The daVinci Surgical System (Intuitive Surgical, Inc., Sunnyvale, Calif) offers excellent visualization of the mitral subvalvular apparatus and should provide an effective means to excise a left ventricular mass. : A 34-year-old man presented to an outside ...
Gavillet, Bruno
The cardiac sodium channel Nav1.5 plays a key role in cardiac excitability and conduction. Its importance for normal cardiac function has been highlighted by descriptions of numerous mutations of SCN5A (the gene encoding Nav1.5), causing cardiac arrhythmias which can lead to sudden cardiac death. The general aim of my PhD ...
Deleu Dirk - - 2007
Neurogenic stunned myocardium (NSM) is a well-known complication of subarachnoidal hemorrhage, but has been reported rarely in association with other central nervous system disorders. A case of NSM is described in a patient with hemorrhagic brain contusion associated with cerebral edema. An 18-year-old man was admitted with severe cranial trauma ...
Kasifoglu Timucin - - 2007
A case of noncompaction of the ventricular myocardium in a 24-year-old man with Behçet's disease is reported. Transthoracic echocardiographic examination revealed two cardiac masses in the right atrium, pericardial fluid behind the right atrium and multiple muscular trabeculation in the apical part of the left ventricle. Subsequent transesophageal echocardiography clearly ...
Latif Shuaib - - 2006
Elegant studies using gene disruption strategies have defined a set of genes that are essential for normal cardiac development. Although these studies have provided a framework for the molecular regulation of cardiac morphogenesis, the genetic program of the cardiac progenitors has been incompletely defined. We used a transgenic strategy to ...
Ai Di - - 2006
Current models of left-right asymmetry hold that an early asymmetric signal is generated at the node and transduced to lateral plate mesoderm in a linear signal transduction cascade through the function of the Nodal signaling molecule. The Pitx2 homeobox gene functions at the final stages of this cascade to direct ...
Polizzotto M N - - 2006
Cardiac involvement is not regarded as a feature of Henoch-Schönlein purpura (HSP). We report a patient with HSP who developed significant cardiac symptoms, which resolved with immunosuppression. We review previous cases of HSP with cardiac features, none of which showed a response to treatment, and discuss evidence that cardiac involvement ...
López-Lázaro Miguel - - 2006
Digitoxin is used in the treatment of cardiac congestion and some types of cardiac arrhythmias. The mechanism of action of this cardiac glycoside suggested that it might antagonize the anticancer activity of topoisomerase II poisons. The present report shows that digitoxin, at concentrations commonly found in the plasma of cardiac ...
Abbara Suhny - - 2005
Anatomic mapping of the cardiac veins is important to guide transvenous therapeutic procedures such as biventricular pacing. As an alternative to invasive venography, we studied the feasibility of MDCT of the cardiac venous anatomy. Cardiac venous anatomy is variable. MDCT is a noninvasive method that allows detailed imaging of the ...
Giulia Ottaviani
Given the complexity and stress of a cardiac massage, many mistakes are possible. While external cardiac massage is always advocated as a reanimatory maneuver, little attention if any has been given to the possibility of cardiac and cardiac conduction system lesions in infants during this emergency maneuver, whenever over practiced. ...
Kolly Carine - - 2004
A cardiac rhabdomyoma is described in a 6-wk-old captive fallow deer (Dama dama) that died suddenly without previous clinical signs. The tumor was characterized by multiple nodules composed of large atypical vacuolated myoblastic cells. As previously reported in humans and other animal species, there is compelling evidence that the cardiac ...
Ching C K - - 2004
Since its introduction in Singapore more than 10 years ago, nuclear cardiology has now become an integral part of comprehensive cardiac workup of patients with a variety of cardiac diseases. We trace its local development from the 1980s to its present-day role in cardiac evaluation, and into the potential future ...
Arráez-Aybar L A - - 2003
There has been much controversy regarding Cardiac Embryology since the 19th Century; this has brought up contradictions over many studies on Cardiac Development, and stems mainly from semantic differences rather than from scientific observations. In 1998, FCAT published the 1st Edition of Terminologia Anatomica, which did not include Terminologia Embryologica, ...
Waldmann Mathias - - 2003
OBJECTIVE: We sought to determine whether cardiac surgery, specifically the placement of an incision within a ventricular wall, affects the capacity of regional cardiac sensory nerve terminals (neurites) to transduce the local cardiac milieu. METHODS: The capacity of sensory neurites in the right ventricular outflow tract associated with afferent neurons ...
Thuma Jeff B - - 2003
Cardiac sac network activity (cycle period tens of seconds to minutes) has long been known to alter pyloric network activity (cycle period approximately 1 s), but these effects have not been quantified. Some pyloric muscles extract cardiac sac timed variations in pyloric motor neuron firing, and consequently produce cardiac sac ...
V. L. Christensen
The hypothesis was proposed that changes in functional qualities of eggs, or the eggshell conductance constant (k), may affect cardiac weight and physiology and predispose poults to a weakened condition. Improved knowledge of this relationship may allow selection of k to optimize hatchling cardiac health. Egg weights (EW), eggshell conductance ...
Jang Tae Jung - - 2003
Pathogenesis of chronic inflammation at the gastric cardia is not yet clear. It is controversial whether cardiac-type mucosa is normal structure at the cardiac region. Therefore, we studied the existence of correlations between carditis, infection, and gastroesophageal reflux disease, and determined the prevalence of cardiac mucosa at the endoscopically defined ...
Glickman Nathalia S - - 2002
Organogenesis is a dynamic process involving multiple phases of pattern formation and morphogenesis. For example, heart formation involves the specification and differentiation of cardiac precursors, the integration of precursors into a tube, and the remodeling of the embryonic tube to create a fully functional organ. Recently, the zebrafish has emerged ...
Straub Jens - - 2002
OBJECTIVE: To determine reference values for size of the radiographic cardiac silhouette in healthy adult medium-sized psittacines. DESIGN: Prospective case series. ANIMALS: 46 African grey parrots (Psittacus erythacus), 7 Senegal parrots (Poicephalus senegalis), and 6 orange-winged Amazon parrots (Amazona amazonica). PROCEDURE: Birds were anesthetized, and ventrodorsal radiographic projections were obtained. ...
Schram Gernot - - 2002
The cardiac electrical system is designed to ensure the appropriate rate and timing of contraction in all regions of the heart, which are essential for effective cardiac function. Well-controlled cardiac electrical activity depends on specialized properties of various components of the system, including the sinoatrial node, atria, atrioventricular node, His-Purkinje ...
Shiroyama K - - 2001
Three hundred and thirty-four pediatric patients less than 4 years old who underwent surgery for congenital heart disease were retrospectively studied to devise a practical formula for predicting the appropriate size for an uncuffed endotracheal tube for pediatric cardiac anesthesia. Furthermore, this formula was compared with that for non-cardiac anesthesia ...
Srivastava D - - 2000
Congenital heart disease is the leading non-infectious cause of death in children. It is becoming increasingly clear that many cardiac abnormalities once thought to have multifactorial aetiologies are attributable to mutations in developmental control genes. The consequences of these mutations can be manifest at birth as life-threatening cardiac malformations or ...
Chandrasoma P T - - 2000
Current diagnostic criteria for reflux disease and Barrett's esophagus are based on the belief that the gastroesophageal junction normally contains 2 cm of cardiac mucosa composed of mucous glands devoid of parietal cells. This autopsy study disproves this belief. Even when the entire circumference of the gastroesophageal junction is examined, ...
< 1 2 3 4 5 6 >