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January 1, 1996European Journal of Cardio-Thoracic SurgeryOpen Access

Transcranial Doppler detection of microemboli in prosthetic heart valve patients: dependency upon valve type

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Why the study?

Does the prevalence and number of cerebrovascular microemboli signals differ among patients with different types of prosthetic heart valves?

Population

Patients with prosthetic heart valves stabilized on warfarin, examined across two centers.

Comparison

Björk-Shiley monostrut prosthetic heart valve vs Other prosthetic heart valves

Design

Cross-sectional

Authors

DGD GeorgiadisGeorgia Department of EducationKLK LEESTulane UniversityMKManfred KapsJustus-Liebig-Universität Gießen

Discussion

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Implication

Valve type influences microemboli detection rates; observational data leave open clinical relevance and need for outcome studies.

Structured PICO

Does the prevalence and number of cerebrovascular microemboli signals differ among patients with different types of prosthetic heart valves?

P
Population
Patients with prosthetic heart valves stabilized on warfarin, examined across two centers.
I
Intervention
Björk-Shiley monostrut prosthetic heart valve
C
Comparator
Other prosthetic heart valves (Medtronic-Hall, Carbomedics, ATS, Carpentier-Edwards standard, Carpentier-Edwards supraannular)
O
Outcome
Prevalence and number of microemboli signals detected by 30-minute transcranial Doppler ultrasound monitoring over the right middle cerebral arterysurrogate

The prevalence and quantity of cerebrovascular microemboli signals in patients with prosthetic heart valves depend significantly on the valve type, being highest with Björk-Shiley monostrut valves.

Cite This Study

Georgiadis et al. (1996) studied this question.

synapsesocial.com/papers/6a207e2b7b2df09761f893dfhttps://doi.org/10.1016/s1010-7940(96)80148-5

Topics

Valvular heart disease
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Prevalence and characteristics of intracranial microemboli signals in patients with different types of prosthetic cardiac valves.1994 · 124 citations
  2. 2Coagulation activity and emboli counts in patients with prosthetic cardiac valves.1994 · 49 citations
  3. 3Variability of Doppler Microembolic Signal Counts in Patients With Prosthetic Cardiac Valves1995 · 41 citations
  4. 4Microemboli and Cerebral Impairment During Cardiac Surgery1990 · 116 citations
  5. 5Assessment of intracranial hemodynamics in carotid artery disease by transcranial Doppler ultrasound1985 · 267 citations