SELECTIVE ENDOVASCULAR TREATMENT OF 71 INTRACRANIAL ANEURYSMS WITH PLATINUM COILS

Seventy-one intracranial aneurysms were treated by endovascular techni ques. with the placement of minicoils inside the aneurysmal sac. Most aneurysms were manifest by hemorrhage (67 cases). and 43 of these were treated within the first 3 days after presentation. At the 1-year fol low-up examination, the outcome was scored as good in 84.5% of cases, but the morbidity and mortality rates were 4.2% and 11.3%, respectivel y. Twenty-nine aneurysms in the anterior circulation and 42 in the pos terior circulation were treated. In this series, patients were classif ied as Hunt and Hess neurological Grade I, 27 as Grade II, 12 as Grade III, nine as Grade IV, and none as Grade V. Thirty-three aneurysms we re less than 10 mm in diameter, 28 were 10 to 25 mm, and 10 were large r than 25 mm. The preliminary results from this study appear to justif y the emergency treatment of aneurysms by this approach. Aneurysms in the posterior circulation are particularly well suited for this type o f surgery.