Related Experiment Video
Updated: Mar 11, 2026
06:26
Novel and Innovative Hybrid Technique for Type A Aortic Dissection
Published on: March 28, 2025
1.1K
Contrast-less stent placement for vertebral artery origin stenosis
Shinzo Ota1, Yoshinobu Sekihara1, Takahiro Himeno2
11 Department of Neurosurgery, Brain Attack Center Ota Memorial Hospital, Hiroshima, Japan.
Summary
Stent placement using intravascular ultrasound (IVUS) successfully treated vertebral artery stenosis in a patient with poor kidney function. This contrast-free method offers a safe alternative for patients with contraindications to contrast media.
Area of Science:
- Interventional Cardiology
- Vascular Neurology
- Medical Imaging
Background:
- Vertebral artery origin stenosis poses a risk of stroke.
- Patients with decreased renal function often have contraindications for contrast-enhanced procedures.
- Intravascular ultrasound (IVUS) provides detailed imaging without contrast medium.
Observation:
- A male patient in his 70s with vertebral artery stenosis and reduced renal function was treated.
- Stent placement was performed using IVUS guidance.
- No contrast medium was utilized during the procedure.
Findings:
- The stent placement achieved satisfactory arterial dilatation.
- The procedure was completed without any immediate complications.
- The patient remained asymptomatic with successful outcomes at a 2-year follow-up.
Implications:
- IVUS-guided stent placement is a viable alternative for treating vertebral artery stenosis in patients with renal impairment.
- This technique avoids the risks associated with contrast media, expanding treatment options.
- Further studies may validate IVUS as a standard approach in select patient populations.
