Related Experiment Videos
A long-term follow-up study in direct cerebral aneurysm surgery
H Kamitani1, H Masuzawa, I Kanazawa
1Department of Neurosurgery, Kanto Teishin Hospital, Japan.
Acta Neurochirurgica
|January 1, 1995
Summary
Incomplete cerebral aneurysm surgery offers limited long-term protection against rebleeding. Procedures like wrapping or clipping may prevent early rebleeding but are less effective after five years.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Medical Device Technology
Background:
- Cerebral aneurysms pose a significant risk of rupture and rebleeding.
- Surgical interventions aim to prevent rebleeding, but long-term outcomes require evaluation.
Purpose of the Study:
- To assess the long-term efficacy of direct surgical operations for cerebral aneurysms.
- To evaluate rebleeding rates in patients with incomplete versus complete surgical procedures.
Main Methods:
- A long-term follow-up study of 177 patients undergoing direct surgery for cerebral aneurysms.
- Analysis of rebleeding events based on the completeness of surgical intervention (wrapping, coating, clipping).
Main Results:
- Five of 18 patients with incomplete operations experienced rebleeding, with one case within 6 months and four between 5-8 years post-surgery.
- The rebleeding rate in the first decade for incompletely operated patients was comparable to untreated ruptured aneurysms.
- Newly-formed or enlarged residual aneurysms were observed after both complete and incomplete surgeries, respectively.
Conclusions:
- Incomplete cerebral aneurysm surgery provides minimal protection against rebleeding beyond five years.
- Surgical techniques like wrapping and coating may offer short-term benefits but are insufficient for long-term aneurysm management.
- Further investigation into the management of residual and newly-formed aneurysms is warranted.