syncope
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Voluntarily participate in the trial, and the research subjects and guardians sign the informed consent form; 2. Meets diagnostic criteria for orthostatic intolerance (according to the 2016 revised guidelines for the diagnosis of syncope in children), diagnosed with VVS or POTS by tilt test; 3. There is no abnormality in the stool; Inclusion criteria for the control group: 1. Voluntarily participate in the survey, and the research subjects and guardians sign informed consent forms; 2. Children aged 5-18 3. There are no abnormalities in stool consistency.
Exclusion criteria
Exclusion criteria: 1.History of antibiotic use within the past 2 months; 2.Gastrointestinal symptoms such as diarrhea and constipation in the past 2 months; 3.Examination or examination results show obvious abnormal diseases of nervous, endocrine, cardiovascular and other systems; 4.Failure to collect stool or sample contamination in accordance with specifications;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cluster data of fecal microbiota OTUs; | — |
Countries
China
Contacts
Qilu Hospital of Shandong University