Temporary arterial occlusion during intracranial aneurysm surgery

Area of Science:

• Neurosurgery
• Vascular Surgery
• Neurology

Background:

• Temporary arterial occlusion is a crucial technique in intracranial aneurysm surgery.
• It serves as an emergency measure and aids in precise surgical dissection and clipping.
• This method is particularly beneficial for complex aneurysms, including large, giant, or those with thin walls.

Purpose of the Study:

• To evaluate the safety and efficacy of temporary arterial occlusion during intracranial aneurysm surgery.
• To compare outcomes of temporary clipping versus non-clipping techniques.
• To assess the impact of protective measures on reducing ischemic complications.

Main Methods:

• Retrospective review of 52 patients undergoing temporary arterial occlusion for intracranial aneurysms.
• Comparison with 88 patients who did not have temporary clips used.
• Analysis of patient outcomes, including mortality, neurological deficits, and long-term recovery.

Main Results:

• Temporary arterial occlusion was used in 37.1% of aneurysm surgeries during the study period.
• Mortality rate was 1.9%, with 19.2% experiencing temporary neurological deficits.
• 98% of patients achieved excellent or good recovery at an average 3.8-year follow-up, with no significant difference compared to the non-clipping group.

Conclusions:

• Temporary arterial occlusion is a safe and effective adjunct in intracranial aneurysm surgery.
• The use of brain protectors, barbiturates, and hypothermia can enhance safety and reduce ischemic complications.
• Further research is needed to establish definitive safe time limits and reliable monitoring for vascular occlusion.