Retrograde suction decompression of giant paraclinoidal aneurysms. Technical note.

Area of Science:

• Neurosurgery
• Vascular Surgery
• Interventional Neurology

Background:

• Giant paraclinoidal carotid artery aneurysms present significant surgical challenges.
• Retrograde flow through ophthalmic and cavernous branches complicates aneurysm occlusion.
• Standard trapping techniques may be insufficient due to persistent blood flow.

Purpose of the Study:

• To describe a novel retrograde suction-aspiration technique for managing giant paraclinoidal carotid artery aneurysms.
• To evaluate the efficacy of this method in facilitating aneurysm occlusion.

Main Methods:

• A No. 18 angiocatheter is inserted into the cervical internal carotid artery after temporary aneurysm trapping.
• The catheter is connected to wall suction to aspirate collateral blood flow.
• This technique allows for rapid aneurysm deflation, aiding surgical manipulation.

Main Results:

• The retrograde suction method was successfully employed in over 40 cases.
• Rapid aneurysm deflation was achieved, facilitating surgical intervention.
• The technique allowed the surgeon to have both hands free for aneurysm management.

Conclusions:

• Retrograde suction-aspiration is an effective method for managing collateral flow in giant paraclinoidal carotid artery aneurysms.
• This technique simplifies the occlusion of complex aneurysms.
• It enhances surgical safety and efficiency in treating these challenging lesions.