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[Digital subtraction angiography and preoperative embolization for meningiomas]
Qiu-jing Wang1, Tie-lin Li, Chuan-zhi Duan
1Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China. wangqiujing@hotmail.com
Di 1 Jun Yi Da Xue Xue Bao = Academic Journal of the First Medical College of PLA
|August 20, 2005
Summary
Digital subtraction angiography (DSA) is valuable for diagnosing meningiomas. Preoperative embolization, particularly via the external carotid artery (ECA), safely reduces tumor bleeding and shortens surgery.
Area of Science:
- Neurosurgery
- Neuroradiology
- Oncology
Background:
- Meningiomas are common primary intracranial tumors.
- Surgical resection is the primary treatment for meningiomas.
- Intraoperative hemorrhage can complicate meningioma surgery.
Purpose of the Study:
- To evaluate the diagnostic utility of digital subtraction angiography (DSA).
- To assess the clinical effectiveness of preoperative embolization for meningiomas.
Main Methods:
- Fifty-eight patients with meningioma underwent DSA.
- Preoperative embolization of feeding arteries (predominantly external carotid artery - ECA) was performed in 43 patients.
- Embolization used 250-350 micrometer particles, achieving complete occlusion in 31 and partial in 12 patients.
Main Results:
- DSA provided valuable diagnostic information for meningiomas.
- Preoperative embolization via ECA was performed without complications.
- Tumor blood supply was significantly reduced, with complete blockage in 31 patients.
- Average intraoperative hemorrhage was 600 ml in patients undergoing resection 1-7 days post-embolization.
Conclusions:
- DSA is crucial for meningioma diagnosis.
- Preoperative embolization is a safe and effective adjunct to surgery.
- Embolization reduces operative bleeding, shortens procedure time, and may prevent postoperative complications.