Results 121 to 130 of about 2,361 (168)
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Control of the ductus arteriosus

Physiological Reviews, 1975
In the fetus the major function of the ductus arteriosus is to divert flow away from the lungs toward the placenta, therby avoiding unnecessary circulation through the lungs and reducing the work load of the heart. Constriction of the ductus arteriosus is produced by several mechanisms that may interact with one another in producing normal postnatal ...
M A, Heymann, A M, Rudolph
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The Patent Ductus Arteriosus

Clinics in Perinatology, 1978
This article focuses on the patent ductus arteriosus in the preterm infant. The results of recent laboratory investigations concerning the modulation of the caliber of the fetal ductus arteriosus by alterations in the prostaglandin milieu are discussed.
W F, Friedman   +3 more
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Patent ductus arteriosus

Current Treatment Options in Cardiovascular Medicine, 1999
In the absence of irreversible pulmonary hypertension, closure of clinically detectable patent ductus arteriosus (PDA) is usually recommended in adults. Device closure obviates the need for general anesthesia and a surgical incision and eliminates postoperative pain, long convalescence, and lifelong scarring.
, Therrien, , Connelly, , Webb
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Prostaglandins and the Ductus Arteriosus

Annual Review of Medicine, 1981
Fetal patency of the ductus arteriosus is an active state maintained by the relaxant action of a prostaglandin, most probably prostaglandin E2. This PG mechanism is most active in the immature ductus and decreases toward term. The ductus closes when this prostaglandin effect if withdrawn.
P M, Olley, F, Coceani
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Pharmacology of the Ductus Arteriosus

Pediatric Clinics of North America, 1981
Dramatic advances in the understanding of the factors that control normal patency of the ductus arteriosus during fetal life and that allow its closure after birth have resulted in major new therapeutic approaches to the management of infants with congenital heart disease. Infusion of PGE 1 and PGE 2 have been used in several congenital malformations
R I, Clyman, M A, Heymann
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The Rabbit Ductus Arteriosus

Nature, 1957
THE ductus arteriosus differs structurally and functionally from other large arteries. It is almost devoid of elastic tissue, and its smooth muscle fibres have a specific disposition1,2. In the rabbit, fine nerve fibres ending in relation to the muscle, as well as sensory type endings, have been described3.
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Patent Ductus Arteriosus

Cardiology Clinics, 2013
Patent ductus arteriosus in adults is usually an isolated lesion with a small to moderate degree of shunt, as a larger shunt becomes symptomatic earlier in childhood. The classic murmur of patent ductus arteriosus may be the first clue to its presence, or it may be detected accidently by transthoracic echocardiography, computed tomography, or magnetic ...
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Aneurysm of the nonpatent ductus arteriosus

The American Journal of Cardiology, 1972
Abstract Clinical and necropsy findings are described in a 6 week old infant with aneurysm of the ductus arteriosus. It was obliterated at the pulmonary arterial end and patent at the aortic end. Observations in this case and in 60 previously described cases of ductal aneurysm disclosed that 46 of the aneurysms occurred in infants less than 2 months ...
M W, Falcone, J K, Perloff, W C, Roberts
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The Ductus Arteriosus,

Archives of Internal Medicine, 1975
In his monograph, Cassels provides an extensive discussion of the patent ductus arteriosus from almost every conceivable aspect. There are chapters dealing with ductal embryology, anatomy and histology, physiology, and clinical correlations. The author also deals with the patent ductus arteriosus in association with other cardiac defects, pulmonary ...
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Transmembrane potentials of the ductus arteriosus

Experientia, 1973
Membran-Potentiale vom Ductus arteriosus der Ziege wurden im ruhenden Zustand aufgezeichnet. Die Zellen depolarisieren, sobald sie mit einer Kontraktion auslosenden Konzentration Sauerstoff in Beruhrung kommen.
S I, Noel, P, Posner, S, Cassin
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