Related Experiment Video
Updated: Nov 28, 2025
14:58
Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
10.0K
Recurrent brainstem cavernous malformations following primary resection: blind spots, fine lines, and the right-angle
Roxanna M Garcia1, Taemin Oh2, Tyler S Cole1
11Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona; and.
Journal of Neurosurgery
|November 30, 2020
Summary
Brainstem cavernous malformations (BSCMs) recurred in 6.6% of patients after initial surgery, with a 5.9% annual hemorrhage risk. Complete resection is challenging, necessitating careful surgical techniques to minimize recurrence and improve outcomes.
Area of Science:
- Neurosurgery
- Neurology
- Vascular Malformations
Background:
- Brainstem cavernous malformations (BSCMs) pose surgical challenges due to their proximity to critical neural structures.
- Complete resection is often difficult, leading to potential remnants and recurrence.
- Recurrent BSCMs can result in increased morbidity, prolonged recovery, and higher costs.
Purpose of the Study:
- To review the experience with recurrent brainstem cavernous malformations (BSCMs) following primary microsurgical resection.
- To analyze the outcomes and risk factors associated with BSCM recurrence.
Main Methods:
- A prospectively maintained database of 802 patients with cerebral cavernous malformations was queried.
- 213 patients with BSCMs were identified, and a retrospective chart review was conducted for those requiring repeat surgery for recurrence.
- Data on hemorrhagic events, surgical outcomes, and recurrence rates were analyzed.
Main Results:
- 6.6% of patients (14 out of 213) underwent repeat resection for recurrent BSCM.
- Recurrent BSCMs had a hemorrhage rate of 5.9% per year.
- The most common cause of residual BSCM was a blind spot in the operative corridor.
- Most patients had stable or improved neurological function post-reoperation.
Conclusions:
- The 6.6% recurrence rate highlights the difficulty in achieving complete resection while ensuring surgical safety.
- Postoperative detection of residual BSCM is challenging.
- The right-angle method is recommended to minimize blind spots and improve inspection of the resection cavity.
- A low recurrence rate (5%-10%) is crucial for balancing safety and completeness in BSCM surgery.
