NCT04492332

Brief Summary

Bilateral transverse sinus stenosis (BTSS) is associated with intracranial hypertension (IH). However, not every BTSS patients presented with IH. The risk factors of IH in BTSS patients remained obscure. Vertebral venous collaterals (VVC) were often found in patients with bilateral transverse sinus stenosis (BTSS). The purpose of this study was to investigate the physiological role of VVC in BTSS patients.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
137

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2014

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2014

Completed
5.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2019

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

June 12, 2020

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 30, 2020

Completed
Last Updated

July 30, 2020

Status Verified

July 1, 2020

Enrollment Period

5.9 years

First QC Date

June 12, 2020

Last Update Submit

July 28, 2020

Conditions

Keywords

vertebral venous collateralsserum uric acidBilateral transverse sinus stenosisintracranial hypertension

Outcome Measures

Primary Outcomes (1)

  • intracranial pressure (ICP)

    ICP was detected by standard lumbar puncture

    at admission

Secondary Outcomes (1)

  • serum uric acid (UA)

    at admission

Other Outcomes (3)

  • Triad of IH: papilledema

    at admission

  • Triad of IH: headache

    at admission

  • Triad of IH: tinnitus

    at admission

Study Arms (4)

normal controls with VVC

SHAM COMPARATOR

BTSS was confirmed by two of magnetic resonance venography (MRV), computed tomography venography (CTV) or digital subtraction angiography (DSA). The index of TSS (ITSS) score was a useful tool for the assessment of BTSS severity. The degree of stenosis was graded from 0 to 4 based on the following scale: 0 = normal; 1 = stenosis up to 1/3; 2 = stenosis between 1/3 and 2/3; 3 = stenosis \>2/3; and 4 = hypoplasia. ITSS was calculated as degree of right TSS × degree of left TSS. Vertebral venous collaterals (VVC) were found.

Diagnostic Test: standard lumbar puncture

normal controls without VVC

SHAM COMPARATOR

BTSS was confirmed by two of magnetic resonance venography (MRV), computed tomography venography (CTV) or digital subtraction angiography (DSA). The index of TSS (ITSS) score was a useful tool for the assessment of BTSS severity. The degree of stenosis was graded from 0 to 4 based on the following scale: 0 = normal; 1 = stenosis up to 1/3; 2 = stenosis between 1/3 and 2/3; 3 = stenosis \>2/3; and 4 = hypoplasia. ITSS was calculated as degree of right TSS × degree of left TSS. Vertebral venous collaterals (VVC) were not found.

Diagnostic Test: standard lumbar puncture

BTSS patients with VVC

ACTIVE COMPARATOR

BTSS was confirmed by two of magnetic resonance venography (MRV), computed tomography venography (CTV) or digital subtraction angiography (DSA). The index of TSS (ITSS) score was a useful tool for the assessment of BTSS severity. The degree of stenosis was graded from 0 to 4 based on the following scale: 0 = normal; 1 = stenosis up to 1/3; 2 = stenosis between 1/3 and 2/3; 3 = stenosis \>2/3; and 4 = hypoplasia. ITSS was calculated as degree of right TSS × degree of left TSS. Vertebral venous collaterals (VVC) were found.

Diagnostic Test: standard lumbar puncture

BTSS patients without VVC

ACTIVE COMPARATOR

BTSS was confirmed by two of magnetic resonance venography (MRV), computed tomography venography (CTV) or digital subtraction angiography (DSA). The index of TSS (ITSS) score was a useful tool for the assessment of BTSS severity. The degree of stenosis was graded from 0 to 4 based on the following scale: 0 = normal; 1 = stenosis up to 1/3; 2 = stenosis between 1/3 and 2/3; 3 = stenosis \>2/3; and 4 = hypoplasia. ITSS was calculated as degree of right TSS × degree of left TSS. Vertebral venous collaterals (VVC) were not found.

Diagnostic Test: standard lumbar puncture

Interventions

Subjects underwent a standard lumbar puncture to measure the intracranial pressure (ICP). ICP was measured invasively through lumbar space in the morning.

BTSS patients with VVCBTSS patients without VVCnormal controls with VVCnormal controls without VVC

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • BTSS confirmed by two of magnetic resonance venography (MRV), computed tomography venography (CTV) or digital subtraction angiography (DSA).

You may not qualify if:

  • medicine related intracranial hypertension;
  • systemic inflammation;
  • moderate to severe stenosis in intracranial, carotid or vertebral arteries;
  • moderate to severe stenosis in intracranial or jugular veins other than transverse sinus;
  • intracranial lesions.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Xuanwu Hospital

Beijing, China

Location

MeSH Terms

Conditions

Intracranial Hypertension

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

June 12, 2020

First Posted

July 30, 2020

Study Start

January 1, 2014

Primary Completion

December 1, 2019

Study Completion

December 1, 2019

Last Updated

July 30, 2020

Record last verified: 2020-07

Locations