Results 21 to 30 of about 1,560,986 (269)

Unrecognized double aortic arch in a preterm infant: Diagnostic challenges and perioperative management

open access: yesAnnals of Cardiac Anaesthesia, 2019
Vascular rings are relatively rare, and are frequently overlooked as a potential cause of neonatal respiratory distress in non specialized centres. This might lead to delay in diagnosis during which the child is subjected to repeated respiratory insults.
Balaji Srimurugan   +3 more
doaj   +1 more source

Revised Computer Programs for Tree-Ring Research

open access: yes, 1979
Three computer programs that are basic to the processing and development of tree -ring chronologies are now available. They were designed to refine and replace older programs that were previously furnished by the laboratory.
Graybill, Donald A.
core   +4 more sources

Importance of Acute Anterior Angulation in Double Aortic Arch Needing Attention at Primary Surgery

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundVascular rings are rare congenital abnormalities of the aortic arch. There are many embryological variants including a double aortic arch. In symptomatic children, division of ring and release of airway structures may be sufficient. Persistence
Arun Beeman   +7 more
doaj   +1 more source

Response of Tree-Ring Density to Climate in Maine, U.S.A.

open access: yes, 1979
Cores of red spruce (Picea rubens Sarg.) from three upper-elevation sites in Maine, U.S.A., were X-rayed, and minimum and maximum wood densities as well as ring widths were mechanically recorded.
Conkey, Laura E.
core   +3 more sources

Double aortic arch as a source of airway obstruction in a child

open access: yesAnnals of Cardiac Anaesthesia, 2015
Double aortic arch (DAA) is a congenital vascular anomaly. The diagnosis was difficult till the child was symptomatic, and other causes were ruled out. We present the interesting images of a child of respiratory distress because of tracheal compression ...
Sambhunath Das   +2 more
doaj   +1 more source

Characterization of pediatric aortic arch vascular rings

open access: yesAl-Azhar Assiut Medical Journal, 2020
Background Vascular rings (VRs) are rare congenital anomalies of the aortic arch. Along with clinical data, several imaging techniques help to suspect VR. Flexible fiberoptic bronchoscopy (FFB) is also considered the main tool for diagnosis.
Ahmed Fareed Almoazen   +2 more
doaj   +1 more source

Thoracic Vascular Variants and Anomalies: Imaging Findings, Review of the Embryology, and Clinical Features

open access: yesIndian Journal of Radiology and Imaging, 2022
Thoracic vascular malformations are a set of complex congenital abnormalities that result in major alterations of the patient's anatomy. It can be discovered incidentally or the anomalies may generate heart failure with a right-to-left shunt, dysphagia ...
Valentina Munera Orozco   +4 more
doaj   +1 more source

Division of Vascular Ring

open access: yes, 2019
A six-month-old girl presented with inspiratory stridor, difficulty feeding, and recurrent lower respiratory tract infections. On evaluation, she had a double aortic arch forming a vascular ring, compressing the esophagus and trachea.
Ehab Mahrous Deigheidy (6489801)   +2 more
core   +1 more source

Aortic diverticulum without vascular ring: a rare cause of dysphagia

open access: yes, 1997
In an adult with severe dysphagia, diagnosis of aneurysmal aberrant subclavian artery was suspected on computed tomogram; no vascular ring was visible on arteriogram. A diverticulum of the aortic isthmus was surgically resected. Histologic analysis ruled
A. Grossi   +4 more
core   +1 more source

Tree-Ring Dating and Archaeology in the American Southwest

open access: yes, 1976
The relationship between archaeology and tree-ring dating, or dendrochronology, is reviewed. Until the past decade, the applications of tree-ring dating to archaeological problems had not been thoroughly exploited.
Robinson, William J.
core   +2 more sources

Home - About - Disclaimer - Privacy