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Articles 541 - 550 of 550
Full-Text Articles in Medicine and Health Sciences
Recognition Of Left Atrial Aneurysm By Fetal Echocardiography., R R. Fountain-Dommer, H B. Wiles, C O. Shuler, S M. Bradley, Girish S. Shirali
Recognition Of Left Atrial Aneurysm By Fetal Echocardiography., R R. Fountain-Dommer, H B. Wiles, C O. Shuler, S M. Bradley, Girish S. Shirali
Manuscripts, Articles, Book Chapters and Other Papers
No abstract provided.
Dobutamine Stress Echocardiography For Assessing Coronary Artery Disease After Transplantation In Children., R L. Larsen, P M. Applegate, D A. Dyar, P A. Ribeiro, S D. Fritzsche, N F. Mulla, Girish S. Shirali, M A. Kuhn, R E. Chinnock, P M. Shah
Dobutamine Stress Echocardiography For Assessing Coronary Artery Disease After Transplantation In Children., R L. Larsen, P M. Applegate, D A. Dyar, P A. Ribeiro, S D. Fritzsche, N F. Mulla, Girish S. Shirali, M A. Kuhn, R E. Chinnock, P M. Shah
Manuscripts, Articles, Book Chapters and Other Papers
OBJECTIVES: The purpose of this study was to determine the feasibility, safety and diagnostic accuracy of dobutamine stress echocardiography (DSE) for evaluating posttransplant coronary artery disease (TxCAD) in children, and to determine the frequency of selected cardiac events after normal or abnormal DSE.
BACKGROUND: Posttransplant coronary artery disease is the most common cause of graft loss (late death or retransplantation) after cardiac transplantation (CTx) in children. Coronary angiography, routinely performed to screen for TxCAD, is an invasive procedure with limited sensitivity. The efficacy of DSE for detecting atherosclerotic coronary artery disease is established, but is unknown in children after CTx. …
Posttransplant Recoarctation Of The Aorta: A Twelve Year Experience., Girish S. Shirali, C E. Cephus, M A. Kuhn, K K. Ogata, L K. Vander Dussen, R E. Chinnock, N F. Mulla, J K. Johnston, L L. Bailey, S R. Gundry, A J. Razzouk, R L. Larsen
Posttransplant Recoarctation Of The Aorta: A Twelve Year Experience., Girish S. Shirali, C E. Cephus, M A. Kuhn, K K. Ogata, L K. Vander Dussen, R E. Chinnock, N F. Mulla, J K. Johnston, L L. Bailey, S R. Gundry, A J. Razzouk, R L. Larsen
Manuscripts, Articles, Book Chapters and Other Papers
OBJECTIVES: This study was undertaken to investigate the incidence of posttransplant recoarctation of the aorta, delineate the mode of presentation, identify risk factors that predict recoarctation and examine the results of intervention for posttransplant recoarctation.
BACKGROUND: Patients with aortic arch hypoplasia require extended arch reconstruction at transplant, with an inherent possibility of subsequent recoarctation of the aorta.
METHODS: This was a retrospective review of all children (ageyears) who underwent cardiac transplantation over a 10-year period. Collected data included pretransplant diagnosis, details of the transplant procedure and posttransplant data including development of recoarctation of the aorta, interventions for recoarctation and the …
The Optimal Fontan Connection: A Growing Extracardiac Lateral Tunnel With Pedicled Pericardium., S R. Gundry, A J. Razzouk, M J. Del Rio, Girish S. Shirali, L L. Bailey
The Optimal Fontan Connection: A Growing Extracardiac Lateral Tunnel With Pedicled Pericardium., S R. Gundry, A J. Razzouk, M J. Del Rio, Girish S. Shirali, L L. Bailey
Manuscripts, Articles, Book Chapters and Other Papers
OBJECTIVE: The concept of a lateral tunnel for the Fontan operation is now widely accepted. Most lateral tunnels are constructed intraatrially with the use of aortic crossclamping. Construction of extracardiac lateral tunnels with the use of homografts or other nonviable tubes eliminates aortic crossclamping but lacks growth potential in length or width. The native pericardium, which is "sealed" posteriorly along the pulmonary artery, atrium, and inferior vena cava, could be turned down onto the right atrium to form a viable extracardiac lateral tunnel.
METHODS: We designed and successfully constructed extracardiac lateral tunnels using viable autologous pericardium, pedicled on its lateral …
Where Do Elderly Veterans Obtain Care For Acute Myocardial Infarction: Department Of Veterans Affairs Or Medicare?, S M. Wright, J Daley, E S. Fisher, G E. Thibault
Where Do Elderly Veterans Obtain Care For Acute Myocardial Infarction: Department Of Veterans Affairs Or Medicare?, S M. Wright, J Daley, E S. Fisher, G E. Thibault
Dartmouth Scholarship
To examine Department of Veterans Affairs (VA) and Medicare hospitalizations for elderly veterans with acute myocardial infarction (AMI), their use of cardiac procedures in both systems, and patient mortality. DATA SOURCES: Merging of inpatient discharge abstracts obtained from VA Patient Treatment Files (PTF) and Medicare MedPAR Part A files. A retrospective cohort study of male veterans 65 years or older who were prior users of the VA medical system (veteran-users) and who were initially admitted to a VA or Medicare hospital with a primary diagnosis of AMI at some time from January 1, 1988 through December 31, 1990 (N = …
Disruption Of The Cbfa2 Gene Causes Necrosis And Hemorrhaging In The Central Nervous System And Blocks Definitive Hematopoiesis., Qing Wang, Terryl Stacy, Michael M Binder, Miguel Marin-Padilla, Arlene H. Sharpe, Nancy A. Speck
Disruption Of The Cbfa2 Gene Causes Necrosis And Hemorrhaging In The Central Nervous System And Blocks Definitive Hematopoiesis., Qing Wang, Terryl Stacy, Michael M Binder, Miguel Marin-Padilla, Arlene H. Sharpe, Nancy A. Speck
Dartmouth Scholarship
The CBFA2 (AML1) gene encodes a DNA-binding subunit of the heterodimeric core-binding factor. The CBFA2 gene is disrupted by the (8;21), (3;21), and (12;21) chromosomal translocations associated with leukemias and myelodysplasias in humans. Mice lacking a CBF alpha 2 protein capable of binding DNA die between embryonic days 11.5 and 12.5 due to hemorrhaging in the central nervous system (CNS), at the nerve/CNS interfaces of cranial and spinal nerves, and in somitic/intersomitic regions along the presumptive spinal cord. Hemorrhaging is preceded by symmetric, bilateral necrosis in these regions. Definitive erythropoiesis and myelopoiesis do not occur in Cbfa2-deficient embryos, and disruption …
Ventricular Remodeling Following Infant-Pediatric Cardiac Transplantation. Does Age At Transplantation Or Size Disparity Matter?, Girish S. Shirali, F Lombano, W L. Beeson, D A. Dyar, N F. Mulla, A Khan, J K. Johnston, R E. Chinnock, S R. Gundry, A J. Razzouk
Ventricular Remodeling Following Infant-Pediatric Cardiac Transplantation. Does Age At Transplantation Or Size Disparity Matter?, Girish S. Shirali, F Lombano, W L. Beeson, D A. Dyar, N F. Mulla, A Khan, J K. Johnston, R E. Chinnock, S R. Gundry, A J. Razzouk
Manuscripts, Articles, Book Chapters and Other Papers
Early left ventricular (LV) remodeling following pediatric cardiac transplantation has not been described. To identify patterns and determinants of change in left ventricular mass and volume posttransplant, we studied 125 consecutive children who underwent cardiac transplantation between January 1, 1989 and July 31, 1993. Two-dimensional imaging-directed M-mode echocardiograms were studied weekly until 26 weeks post-transplant. LV mass and volume (indexed to BSA1.5) were measured. LV mass index increased until 3 weeks post-transplant, and then decreased. The mean decrement in LV mass index after 8 weeks post-transplant (relative to baseline) was significantly larger in patients with donor-recipient weight ratio > 1.5 compared …
Indistinguishable Nuclear Factor Binding To Functional Core Sites Of The T-Cell Receptor Delta And Murine Leukemia Virus Enhancers., Juan M. Redondo, Jeffrey L. Pfohl, Cristina Hernandez-Munain, Shuwen Wang, Nancy A. Speck, Michael S. Krangel
Indistinguishable Nuclear Factor Binding To Functional Core Sites Of The T-Cell Receptor Delta And Murine Leukemia Virus Enhancers., Juan M. Redondo, Jeffrey L. Pfohl, Cristina Hernandez-Munain, Shuwen Wang, Nancy A. Speck, Michael S. Krangel
Dartmouth Scholarship
We have previously shown that the delta E3 site is an essential element for transcriptional activation by the human T-cell receptor (TCR) delta enhancer and identified two factors, NF-delta E3A and NF-delta E3C, that bound to overlapping core (TGTGGTTT) and E-box motifs within delta E3. In this study, we show that protein binding to the core motif is necessary but not sufficient for transcriptional activation by the delta E3 element. In contrast, protein binding to the E-box motif does not contribute significantly to enhancer activity. A similar core motif present within the enhancers of T-cell-tropic murine retroviruses has been shown …
Murine Gamma Interferon Fails To Inhibit Toxoplasma Gondii Growth In Murine Fibroblasts., Joseph D. Schwartzman, Steven L. Gonias, E R. Pfefferkorn
Murine Gamma Interferon Fails To Inhibit Toxoplasma Gondii Growth In Murine Fibroblasts., Joseph D. Schwartzman, Steven L. Gonias, E R. Pfefferkorn
Dartmouth Scholarship
Although treatment of human macrophages or fibroblasts with human gamma interferon results in the inhibition of intracellular Toxoplasma gondii, murine gamma interferon stimulated only murine macrophages, not murine fibroblasts, to inhibit T. gondii. This species difference may be important in understanding the control of acute and chronic toxoplasmosis.
Maternal-Neonatal Serum Vitamin A Concentrations., Girish S. Shirali, D G. Oelberg, K P. Mehta
Maternal-Neonatal Serum Vitamin A Concentrations., Girish S. Shirali, D G. Oelberg, K P. Mehta
Manuscripts, Articles, Book Chapters and Other Papers
Prevention of neonatal vitamin A deficiency is related to the adequacy of maternal vitamin A stores. In this study we investigated maternal and cord serum vitamin A and retinol-binding protein (RBP) values in an Indian population including, for the first time, clinically vitamin A-deficient mothers. Twenty-eight maternal-neonatal pairs were selected from maternal cohorts of high socioeconomic status without clinical evidence of vitamin A deficiency (group I) and low socioeconomic status with conjunctival xerosis and Bitot's spots (group II). Maternal education, caloric and vitamin A intakes, weight, height, hemoglobin, and birth weight were significantly lower in group II. Serum vitamin A …