Multicenter Registry Study of Patients With Intracranial Dural Arteriovenous Fistulas in China

Recruiting now

Conditions studied: Intracranial Dural Arteriovenous Fistula

In brief

This multicenter registry study aims to clarify the incidence trends of intracranial dural arteriovenous fistulas (IDAVF) and spinal dural arteriovenous fistulas (SDAVF) in China, evaluate current treatment patterns, and establish a nationwide multicenter retrospective and prospective database. The study is designed as a multicenter retrospective and prospective observational study involving more than 60 core hospitals across seven major geographic regions of China. The retrospective phase will include patients diagnosed between February 28, 2015 and February 28, 2025, while the prospective phase will enroll patients from March 1, 2025 to March 1, 2030. Eligible participants are patients diagnosed with IDAVF or SDAVF by digital subtraction angiography (DSA). The study will analyze disease incidence and temporal trends, collect baseline demographic and clinical characteristics, and evaluate treatment outcomes including obliteration rate, recurrence rate, and clinical prognosis. The crude incidence rate per 100,000 person-years during the study period will also be calculated based on Chinese census population data. The primary endpoint is the improvement rate in modified Rankin Scale (mRS) score at 6 months after treatment. Secondary endpoints include obliteration and recurrence rates on imaging follow-up at 6 months and improvement in mRS score at 12 months after treatment. Statistical analyses will be performed using SAS 9.4 software, including descriptive analyses as well as univariate and multivariate regression analyses to identify factors associated with clinical outcomes and prognosis.

Key facts

Study ID

NCT07604688

Run by

Xuanwu Hospital, Beijing

People needed

10050

Starts

2026-05-18

Expected to finish

2030-02-28

Last updated by the study team

2026-06-04

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Patients diagnosed with intracranial dural arteriovenous fistula (IDAVF) or spinal dural arteriovenous fistula (SDAVF) by cerebral or spinal digital subtraction angiography (DSA)
• Patients treated or evaluated at participating centers during the study period
• Availability of complete clinical and imaging records, including baseline information, treatment records, and DSA images
• For the prospective cohort, written informed consent signed by the patient or legal representative

You may not qualify if…

• Patients with facial or scalp arteriovenous fistulas
• Patients with non-dural vascular malformations or non-arteriovenous fistula vascular diseases, including cavernous malformations or venous malformations

Where it is running

• Xuanwu Hospital — Beijing, China (enrolling)

Full record on ClinicalTrials.gov

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