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Clinical research on treatment of nutcracker syndrome by left renal vein stenting with 3D printed extravascular stent of PEEK material

The establishment of the gordian technique with 3D printing technology in the treatment of nutcracker syndrome

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR1800019637
Enrollment
Unknown
Registered
2018-11-20
Start date
2018-12-01
Completion date
Unknown
Last updated
2018-11-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nutcracker syndrome

Interventions

Group 1:Laparoscopic left renal vein stenting with 3D printed extravascular stent of PEEK material
Group 2:conservative treatment

Sponsors

The Fourth Military Medical University Tangdu Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
10 Years to 40 Years

Inclusion criteria

Inclusion criteria: All the patients were those who were diagnosed as NCS by imaging examination, aged between 18 and 40 years old, with no history of abdominal trauma, systemic disease, urological tumor and infection

Exclusion criteria

Exclusion criteria: To exclude patients with abdominal trauma or operation history, patients with serious medical diseases and patients who are not suitable for CT examination

Design outcomes

Primary

MeasureTime frame
Angle between the AA and the SMA;left renal vein diameter at the hilum;ratio of the left renal vein diameter at the hilum to the stenosis;left spermatic vein diameter;the left ovarian venous diameter;hematuria;proteinuria;lumboabdominal pain;—

Secondary

MeasureTime frame
SMA diameter at the Angle;—

Countries

China

Contacts

Public ContactZhang Bo

The Fourth Military Medical University Tangdu Hospital

zhangbo@fmmu.edu.cn+86 18066751227

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026