[Trans-longitudinal fissure keyhole approach for distal anterior cerebral artery aneurysms].

OBJECTIVE

To explore the significance of the trans-longitudinal fissure keyhole approach for distal anterior cerebral artery aneurysms.

METHODS

From March 2000 to October 2002, the trans-longitudinal fissure keyhole approach was adopted for 11 cases of distal anterior cerebral artery aneurysms, which including 9 cases of A2 segment and 2 cases of A3 segment.

RESULTS

All cases were clipped successfully without any obvious neurological deficit and surgical death. Post-operative digital subtraction argiography demonstrated that all aneurysms disappeared. There was no need for foreign blood transformation. The mean hospitalization was 11 days.

CONCLUSIONS

The keyhole approach is an effective and minimal-invasive approach in treating distal anterior cerebral artery aneurysms. It can also shorten hospitalization, decrease foreign blood transformation rate and reduce medical cost.