The study was designed as a multicenter multiracial prospective observational study of acute ischemic stroke and TIA patients across china. The purpose of this study is to determine the monogenic disorders incidence of Chinese early-onset stroke patients. We plan to consecutively enroll more than 500 patients with early-onset stroke(in the 18- to 45-year age range) admitted in stroke units within 7 days after symptoms onset in participating centers. These early-onset stroke patients are referred for targeted sequencing using 'cerebrovascular disease panel'. By analyzing the sequencing results, we intend to identify monogenic causes causing early-onset stroke and develop clinical algorithms that might assist the clinician in deciding in which early-onset stroke patients testing for monogenic causes of stroke.
The study was designed as a multicenter multiracial prospective observational study of acute ischemic stroke and TIA patients across china. The purpose of this study is to determine the monogenic disorders incidence of Chinese early-onset stroke patients. We plan to consecutively enroll more than 500 patients with early-onset stroke(in the 18- to 45-year age range) admitted in stroke units within 7 days after symptoms onset in participating centers. Patients fulfilling all of the inclusion criteria and none of the exclusion criteria will be referred for targeted sequencing using 'cerebrovascular disease panel'. When one or multiple pathogenic or possible pathogenic exonic mutations are found, a Sanger Sequencing (SS) on somatic DNA from peripheral blood leukocyte of the index case and affected relatives will be performed for the screening of the same mutations. And the sporadic patient's mutations will be checked by SS in the unaffected family members. By analyzing the sequencing results, we intend to identify monogenic causes causing early-onset stroke and develop clinical algorithms that might assist the clinician in deciding in which early-onset stroke patients testing for monogenic causes of stroke.
Study Type
OBSERVATIONAL
Enrollment
502
Beijing Tian Tan Hospital, Capital Medical University
Beijing, Beijing Municipality, China
Percentage of patients with certain etiologic diagnosis established with targeted sequencing
Percentage of patients with certain etiologic diagnosis established with targeted sequencing
Time frame: day 0
Obtained read depth according to number of pooled samples
Obtained read depth according to number of pooled samples
Time frame: day 0
Percentage of patients with variant with unknown significance
Percentage of patients with variant with unknown significance, needing supplementary analyses to prove its involvement in early-onset stroke
Time frame: day 0
Clinical phenotype for each gene for which a causal mutation is identified by targeted sequencing panel
Clinical phenotype for each gene for which a causal mutation is identified by targeted sequencing panel
Time frame: day 0
Time of analysis of NGS raw data
Time of analysis of NGS raw data
Time frame: 30 days
Incidence of certain single-gene disorders in early-onset stroke patients
Incidence of certain single-gene disorders in early-onset stroke patients
Time frame: day 0
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