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- Andersson, T, et al.
(författare)
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Regression of a Flow-Related Ophthalmic Artery Aneurysm After Treatment of a Frontal DAVS. A Case Report
- 2004
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Ingår i: Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences. - : SAGE Publications. - 1591-0199. ; 10:3, s. 265-268
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Tidskriftsartikel (refereegranskat)abstract
- We report a case of a frontal dural arteriovenous shunt or fistula (DAVS) adjacent to the left side of the cribriform plate, with bilateral supply from multiple arteries, the most prominent being the dural branches originating from the anterior ethmoidal artery coming from the left ophthalmic artery. Before treatment there was an eight mm flow-related arterial aneurysm proximally on the left ophthalmic artery. After transarterial embolization of the DAVS with N-butyl cyanoacrylate and polyvinyl alcohol, minimal shunting still remained. At follow-up angiography six months after the treatment, the shunt was obliterated and the ophthalmic artery aneurysm had regressed completely. Our case illustrates that complete obliteration of a DAVS may be achieved even though arteriovenous shunting remains at the end of the procedure. Furthermore, a flow-related arterial aneurysm, may not warrant any specific treatment. Elimination of the high flow situation can lead to complete regression of these aneurysms.
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- Forander, P, et al.
(författare)
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Combination of microsurgery and Gamma Knife surgery for the treatment of intracranial chondrosarcomas
- 2006
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Ingår i: Journal of neurosurgery. - : Journal of Neurosurgery Publishing Group (JNSPG). - 0022-3085 .- 1933-0693. ; 105105 Suppl, s. 18-25
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Tidskriftsartikel (refereegranskat)abstract
- Intracranial chondrosarcomas have a high risk of recurrence after surgery. This retrospective study of patients with intracranial chondrosarcoma was conducted to determine the long-term results of microsurgery followed by Gamma Knife surgery (GKS) for residual tumor or recurrence.MethodsThe authors treated nine patients whose median age was 36 years. Seven patients had low-grade chondrosarcomas (LGCSs), whereas mesenchymal chondrosarcomas (MCSs) were diagnosed in two. Radiosurgery was performed in eight patients, whereas one patient declined further surgical intervention and tumor-volume reduction necessary for the GKS.The patients were followed up for 15 to 173 months (median 108 months) after diagnosis and 3 to 166 months (median 88 months) after GKS. Seven patients had residual tumor tissue after microsurgery, and two operations appeared radical. In the two latter cases, tumors recurred after 25 and 45 months. Thus, definite tumor control was not achieved after surgery alone in any patient, whereas the addition of radiosurgery allowed tumor control in all six patients with LGCSs. Two of these patients experienced an initial tumor regrowth after GKS; in both cases the recurrences were outside the prescribed radiation field. The patients underwent repeated GKS, and subsequent tumor control was observed. An MCS was diagnosed in the remaining two patients. Complications after microsurgery included diplopia, facial numbness, and paresis. After GKS, one patient had radiation necrosis, which required microsurgery, and two patients had new cranial nerve palsies.Conclusions Tumor control after microsurgery alone was not achieved in any patient, whereas adjuvant radiosurgery provided local tumor control in six of eight GKS-treated patients. Tumor control was not achieved in the two patients with MCS. Similar to other treatments for intracranial chondrosarcoma, morbidity after micro- and radiosurgical combination therapy was high and included severe cranial nerve palsies.
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- Karlsson, B, et al.
(författare)
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Gamma knife surgery for meningiomas
- 1996
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Ingår i: ACTA NEUROCHIRURGICA. - 0001-6268. ; 138:1, s. 114-115
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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- Kihlstrom, L, et al.
(författare)
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Magnetic resonance imaging of obliterated arteriovenous malformations up to 23 years after radiosurgery
- 1997
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Ingår i: Journal of neurosurgery. - : Journal of Neurosurgery Publishing Group (JNSPG). - 0022-3085. ; 86:4, s. 589-593
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Tidskriftsartikel (refereegranskat)abstract
- ✓ The authors report outcomes in 18 patients with arteriovenous malformations (AVMs) who were treated with gamma knife radiosurgery and in whom magnetic resonance (MR) imaging was obtained a mean of 14 years (range 8–23 years) after treatment and 10 years (range 4–17 years) after confirmed obliteration of the AVM. All patients were asymptomatic after radiosurgery and during the time of the study. In five patients (28%), cyst formation was observed that corresponded to the site of the obliterated AVM. Cyst formation and contrast enhancement on MR imaging could not be statistically correlated to the radiation dose. In 11 (61%) of the 18 patients, contrast enhancement that was not related to a recanalization of the nidus was observed in the target area. In three patients (17%), an increased T2-weighted signal was detected at the site of previous AVM; this was interpreted as gliosis or demyelination, which appeared to be dose dependent. The study illustrates that cyst formation, contrast enhancement, and an increased T2-weighted signal can be observed in asymptomatic patients in the area that was targeted for AVM radiosurgery up to 23 years after the procedure. The report provides new and essential information about long-term effects on normal tissue after radiosurgery and provides a basis for the interpretation of MR studies in the follow up of small AVMs treated by radiosurgery.
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| 13. |
- Kihlstrom, L
(författare)
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Obliterated AVMs - Response
- 1997
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Ingår i: JOURNAL OF NEUROSURGERY. - 0022-3085. ; 87:6, s. 980-980
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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- Mathiesen, T, et al.
(författare)
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Brainstem cavernomas - Response
- 2003
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Ingår i: JOURNAL OF NEUROSURGERY. - 0022-3085. ; 99:6, s. 1117-1117
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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- Mathiesen, T, et al.
(författare)
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Meningiomas engaging major venous sinuses
- 2014
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Ingår i: World neurosurgery. - : Elsevier BV. - 1878-8769 .- 1878-8750. ; 81:1, s. 116-124
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Tidskriftsartikel (refereegranskat)
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