PubMed · 118845
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D A Millam. 1979. Intravenous therapy.. https://pubmed.ncbi.nlm.nih.gov/118845/
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The systemic circulation of newborn infants with congenital left-heart obstruction is supplied from the right ventricle via a patent arterial duct between the pulmonary artery and descending aorta. The duct closes during the first few days of life, but infusion of prostaglandin E2 can prevent closure in some cases. We report four newborn infants (aged 3-8 days) with intractable heart failure due to severe obstruction of the left heart in the presence of a closing arterial duct. Infusion of prostaglandin E2 did not improve their clinical condition. Cardiac catheterisation and balloon dilatation of their arterial ducts resulted in a dramatic improvement in the babies' clinical condition; during subsequent surgical repair of the infants' hearts, the arterial ducts were found to be widely patent. Balloon dilatation gives immediate and sustained wide patency of the arterial duct in infants who do not respond adequately to prostaglandin E2.
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This study analyzes uterine motility in 12 women with a bicornuate uterus using the results of the recordings of endo-uterine pressure, obtained with two balloon-closed catheters. Seven patients had symmetric uterine cavities, while the rest (5 patient) had very dissimilar ones. The registration of the uterine motility was carried out during various phases of the cycle and after the administration of two drugs (oxitocin and methylergobasine), with the following results: the bicornuate uterus has a spontaneous activity similar to that of a normal uterus. A similar contractile response was observed in the uteri with two anatomically symmetric horns, whereas a dissimilar response was typical of the uteri with marked anatomic differences between the two horns.