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Updated: May 27, 2026

Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
Elective percutaneous intervention for intracranial atherosclerotic stenoses by interventional cardiologists
Ramy A Badawi1, Christopher J White, Tyrone J Collins
1Department of Cardiovascular Diseases, The John Ochsner Heart and Vascular Institute, Ochsner Clinic Foundation, New Orleans, Louisiana 70121, USA. rbadawi@msn.com
Insights
Catheter-based therapy (CBT) for symptomatic intracranial atherosclerotic disease offers high success and good outcomes. This treatment is a safe option for high-risk patients who have not responded to medical therapy.
Area of Science:
- Cardiology
- Neurology
- Interventional Radiology
Background:
- Symptomatic atherosclerotic intracranial disease carries a high risk of recurrence despite optimal medical therapy.
- Catheter-based therapy (CBT) presents an alternative for patients unresponsive to medical management.
- This study evaluates CBT outcomes in patients with intracranial arterial disease.
Purpose of the Study:
- To assess the safety and efficacy of catheter-based therapy (CBT) for symptomatic intracranial arterial disease.
- To examine the procedural success and clinical outcomes of CBT in a high-risk patient cohort.
- To compare CBT outcomes against the expected recurrence rates of medical therapy.
Main Methods:
- Retrospective analysis of 89 consecutive patients with 99 significant (≥70% diameter) intracranial arterial stenoses.
- CBT performed by experienced interventional cardiologists with neurovascular team support.
- Primary endpoint: stroke and vascular death; secondary endpoints included procedural success and mortality.
Main Results:
- High procedural success rate of 97% (96/99 lesions).
- Significant reduction in diameter stenosis from 91% to 19% (P < 0.001).
- 1-year stroke and vascular death rate of 5.7%; 2-year rate of 13.5%. In-hospital stroke/death rate was 3%.
Conclusions:
- CBT is safe and effective for symptomatic intracranial arterial stenosis in patients who failed medical therapy.
- High procedural success and excellent 1-year clinical outcomes were observed.
- CBT is an attractive option for high-risk patients, offering an alternative to high recurrence rates with medical therapy.
Background:
Current "best" medical therapy with anti-platelet and/or anti-thrombotic agents for symptomatic atherosclerotic intracranial (IC) disease is associated with high recurrence. IC catheter-based therapy (CBT) using balloon angioplasty with or without stent placement is an option for patients who have failed medical therapy. We sought to examine the outcomes of CBT for patients with symptomatic IC arterial disease managed by experienced interventional cardiologists.
Methods:
We retrospectively studied 89 consecutive symptomatic patients with 99 significant (≥70% diameter) IC arterial stenoses who underwent CBT. CBT was performed by experienced interventional cardiologists with the consultative support of a neurovascular team. The primary endpoint was stroke and vascular death.
Results:
Procedure success was achieved in 96/99 (97%) lesions and percent diameter stenosis was reduced from 91% ± 7.5% preprocedure to 19% ± 15% postprocedure (P < 0.001). The rate of in-hospital periprocedural stroke and all death was 3%. The primary endpoint of stroke and vascular death rate at 1 year was 5.7% (5/88) and at 2 years was 13.5% (11/81). The 2-year all-cause mortality was 11.3% (10/88).
Conclusions:
For patients with symptomatic IC arterial stenosis who have failed medical therapy or are considered very high risk for stroke, CBT performed by experienced interventional cardiologists is safe and offers both high procedural success rates and excellent clinical outcomes at 1 year. CBT is an attractive option for this high-risk patient population considering the expected 12-15% rate of recurrent stroke at 1 year.
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