Journal ArticleDOI
The Detection of Microemboli in the Middle Cerebral Artery during Cardiopulmonary Bypass: A Transcranial Doppler Ultrasound Investigation Using Membrane and Bubble Oxygenators
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TLDR
The ultrasound index for detecting gaseous microemboli (MEI) indicated the presence of suchmicroemboli in 22 of the 27 patients during insertion of the aortic cannula during cardiopulmonary bypass surgery, supporting the assumption that the MEI is providing quantitative information regarding the existence of gaseously emboli in the middle cerebral artery.About:
This article is published in The Annals of Thoracic Surgery.The article was published on 1987-09-01. It has received 269 citations till now. The article focuses on the topics: Bubble oxygenator & Membrane oxygenator.read more
Citations
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Journal ArticleDOI
Microemboli detection on extracorporeal bypass circuits.
JE Lynch,Jeffrey B. Riley +1 more
TL;DR: An overview is meant to shed light on why different ultrasonic detection technologies report widely varying counts and emboli loads, and why fixed-beam ultrasonic imaging represents an improvement in the ability to monitor, measure and quantitate embolic load during CPB.
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Processing Doppler ultrasound signals from blood-borne emboli
TL;DR: In this article, a Wigner distribution analyser is used to provide Doppler spectra with both high temporal and frequency resolution, and the resulting sonographic display allows quantitative measurement of embolic events to be made.
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Air embolism during cardiopulmonary bypass.
TL;DR: Believing that it is good practice to prepare for war in time of peace, it is intended on this occasion to call your attention to one of the most dreaded and, I may add, one the most uncontrollable causes of sudden death.
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Structural evidence of injury or malformation in the brains of children with congenital heart disease.
Geoffrey P. Miller,Hannes Vogel +1 more
TL;DR: Poor brain function may not be predicted unless slow head growth or microcephaly is present and thorough preoperative neurodevelopmental evaluation is encouraged, and neuroimaging, especially magnetic resonance imaging, is a useful prognostic instrument.
Journal ArticleDOI
Improving neurologic outcome after cardiac surgery.
References
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Journal ArticleDOI
Noninvasive transcranial Doppler ultrasound recording of flow velocity in basal cerebral arteries
TL;DR: This transcranial Doppler method is of particular value for the detection of vasospasm following subarachnoid hemorrhage and for evaluating the cerebral circulation in occlusive disease of the carotid and vertebral arteries.
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Complement activation during cardiopulmonary bypass. Evidence for generation of C3a and C5a anaphylatoxins
Dennis E. Chenoweth,Steven W. Cooper,Tony E. Hugli,Robert W. Stewart,Eugene H. Blackstone,John W. Kirklin +5 more
TL;DR: It is concluded that the complement-derived inflammatory mediators C3a and C5a produced during extracorporeal circulation may contribute to the pathogenesis of "post-pump syndromes."
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Dependency of Blood Flow Velocity in the Middle Cerebral Artery on End-Tidal Carbon Dioxide Partial Pressure—A Transcranial Ultrasound Doppler Study:
TL;DR: The end-tidal carbon dioxide partial pressure response curves for the flow velocity in the middle cerebral artery were studied in 31 normal subjects with transcranial Doppler techniques and an exponential curve with an exponent of 0.034 mm Hg−1 was found to be a good fit to the recorded data.
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Transcranial measurement of blood velocities in the basal cerebral arteries using pulsed Doppler ultrasound: velocity as an index of flow.
TL;DR: Blood velocities have been measured transcranially, at small Doppler angles, in the middle cerebral artery of normal volunteers, and indicates that changes in middle cerebral blood velocity may be used to monitor changes in flow.
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Deleterious effects of cardiopulmonary bypass. A prospective study of bubble versus membrane oxygenation.
TL;DR: Several deleterious hematologic consequences of cardiopulmonary bypass can be minimized by the use of a membrane oxygenator, however, complement activation remains a potential risk factor even in membrane oxygenators patients and requires further investigation to obtain better hemocompatible materials for cardiopULmonary bypass circuits.