Gamma Knife Radiosurgery of Distal Aneurysm: A Case Series

Abstract

A series of 3 patients (35–60 years old) with bleeding distal aneurysm not associated with AVM who underwent radiosurgery by gamma knife are reported. One isocentre centralized over the aneurysm was used; peripheral dose 24–28.8 Gy was applied. Control angiography 20–36 months after gamma knife surgery (GKS) demonstrated obliteration of both the aneurysm and the feeding artery, without deterioration of the neurological symptoms. Our case series implies that GKS might serve as a safe mini-invasive technique in the treatment of selected distal aneurysms.

Radiosurgery for Intracranial Aneurysms: Blitzkrieg or Guerrilla War?

“…In the present series, it could not be ascertained if the disappearance of aneurysm was because of radiosurgery or secondary to obliteration of the feeder artery [1]. In view of the differential natural history and mortality profile of distal aneurysms from saccular aneurysms on the circle of Willis, it remains imperative to analyze the obliteration rate of an aneurysm after radiosurgery.…”

“…The aneurysms were treated by targeting a single isocenter centralizing over the aneurysm with a peripheral dose of 24-29 Gy. The authors concluded that GKRS might serve as a safe, minimally invasive technique in the treatment of selected distal aneurysm [1].…”

“…I read with great interest the article "Gamma knife radiosurgery of digital aneurysm: A case series" by Liscak et al [1]. The article details the successful obliteration of bleeding distal aneurysms not associated with arteriovenous malformation (AVM) with gamma knife radiosurgery (GKRS).…”