Registry of Right-to-left Shunt Detection by Contrast-enhanced Transcranial Doppler in Chinese Population


Phase N/A Results N/A

Summary of Purpose

The purpose of the study is to evaluate the prevalence and extent of right-to-left shunt (RLS) in Chinese migraineurs, and the morbidity of silent cerebral infarction in migraineurs.

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Trial Milestones

The following dates are available for this trial. Trial information last updated on 17 January 2018.

1 Jun 2015 21 Apr 2015 1 Aug 2016 1 Aug 2017 1 Oct 2016 Unavailable
Start Date First Received 1st Completion Completion Verification Results

Trial Basics



Trial Design

  • Observation: Cohort
  • Perspective: Prospective
  • Sampling: Probability Sample