Endovascular treatment of ruptured intracranial aneurysms in patients aged 65 years and older: follow-up of 52 patients after 1 year

BACKGROUND AND PURPOSE

We sought to describe the clinical outcome and results obtained in the endovascular therapy of ruptured cerebral aneurysms in the elderly over an 8-year period. We compared endovascular therapy results in patients aged > or =65 and <65 years.

METHODS

During 1993-1999, 52 patients aged 65 to 85 years (mean age, 71.5+/-4.7 years) were embolized with the use of Guglielmi detachable coils (group I). During the same period, 143 patients aged <65 years (mean age, 47+/-11 years) with ruptured cerebral aneurysm were treated with the same technique (group II). A clinical assessment was made on admission with the Hunt and Hess (HH) classification and again in the 12th month with the Glasgow Outcome Scale (GOS), with arteriographic control in months 3 and 12.

RESULTS

In group I, clinical grades on admission were as follows: HH 1, 9.5%; HH 2, 33%; HH 3, 21%; HH 4, 34.5%; HH 5, 2%. Outcome was favorable in 48% of patients (GOS 1 or 2); the mortality rate was 23%. No rebleeding was observed. Patients presenting lesions > or =10 mm had an unfavorable outcome in >77% of cases. Thromboembolic complications were present in 13% of cases. In group II, clinical grades on admission were as follows: HH 1, 14.5%; HH 2, 47%; HH 3, 11%; HH 4, 24%; HH 5, 3.5%. Favorable outcome (GOS 1 or 2) was observed in 77% of cases, with 14% mortality. Complications due to the endovascular procedure were present in 4.2% of cases. Patients with HH grades 1 or 2 on admission showed a positive outcome (GOS 1 or 2) in 77% of cases in group I and in 88.5% of cases in group II. Mortality was 9% in the first subgroup compared with 2.8% in the second. Patients who had a high clinical grade on admission (HH 4 or 5) showed a favorable outcome (GOS 1 or 2) in 16% of cases in group I compared with 41% in group II.

CONCLUSIONS

Endovascular treatment of ruptured intracranial aneurysms in patients aged > or =65 years appears to be effective against rebleeding and represents an alternative to surgery. However, perioperative thromboembolic complications are more frequent in the elderly population.

[Factors influencing recurrence and role of radiotherapy in filum terminale ependymomas. 14 cases and review of the literature]

PURPOSE

We reviewed a series of 14 cases of filum terminale ependymoma and 264 cases in the literature, to study the characteristics of these tumors and specifically to determine factors influencing recurrence.

MATERIAL AND METHODS

This series analyzed data between 1984 and 1998. The mean follow-up period was 5.5 years and the median age 40 years. Pain was the first symptom, except in one case, with progressive sensitive-motor deficit. Four patients had a myelography and a CT scan, and ten a MRI. All patients were operated with a total resection in 12 cases. All tumors, except one, were a myxopapillary ependymoma.

RESULTS

Clinical results were excellent in 2 cases, good in 8, stable in 2 and worse in 2. Two patients had a recurrence after an initial sub-total resection, both were operated on again, followed by post-operative radiotherapy. Among the 278 filum terminale ependymoma, removal was total in 200 (72%). A recurrence occurred in 15% of them after total removal, and in 43% after partial removal (p<0.001). Among patients with partial removal, recurrence was observed in 33% of them if they had post-operative radiotherapy, and in 55% of them if they did not have post-operative radiotherapy (p<0.05).

CONCLUSION

The extent of tumor removal has a statistically significant effect upon recurrence. This review is in favor of post-operative radiotherapy in case of partial removal, but this systematic attitude can be discussed after a critical analysis of this study. Long term follow-up is mandatory due to the possibility of late recurrence.