Why the study?
Does the type of prosthetic cardiac valve affect the prevalence and characteristics of intracranial microemboli signals?
Population
179 patients with prosthetic cardiac valves and 25 normal subjects.
Comparison
Transcranial Doppler monitoring over the right… vs Comparison between different prosthetic valve…
Design
Cross-sectional
Follow-up
30 minutes
Authors
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Valve type linked to differing microembolic signal rates on TCD; hypothesis-generating for stroke risk, should not yet change practice.
Does the type of prosthetic cardiac valve affect the prevalence and characteristics of intracranial microemboli signals?
Transcranial Doppler reveals that the prevalence and intensity of microembolic signals vary significantly by prosthetic heart valve type, though these signals did not correlate with clinical neurological deficits.
Georgiadis et al. (1994) studied this question.
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