Long-Term Follow-Up of 32 Meningiomas of the Clivus and Foramen Magnum Subjected to Stereotactic Radiosurgery

Radiosurgery ◽  
2010 ◽  
pp. 202-211
Author(s):  
K. Sallabanda ◽  
J.C. Bustos ◽  
J.A. Gutiérrez-Díaz ◽  
C. Beltrán ◽  
C. Peraza ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Foramen Magnum ◽  
Long Term Follow Up

Salvage Surgical Resection After Linac-based Stereotactic Radiosurgery and Radiotherapy for Newly Diagnosed Brain Metastasis

2021 ◽  
Author(s):  
Ryosuke Matsuda ◽  
Takayuki Morimoto ◽  
Tetsuro Tamamoto ◽  
Nobuyoshi Inooka ◽  
Tomoko Ochi ◽  
...  
Keyword(s):  
Brain Metastasis ◽  
Survival Time ◽  
Stereotactic Radiosurgery ◽  
Surgical Resection ◽  
Cyst Formation ◽  
Histopathological Diagnosis ◽  
Newly Diagnosed ◽  
Long Term Follow Up

Abstract Purpose: This study aimed to assess the clinical outcomes of salvage surgical resection (SSR) after stereotactic radiosurgery and fractionated stereotactic radiotherapy (SRS/fSRT) for brain metastasis.Methods: Between November 2009 and December 2018, we treated 427 consecutive patients with 919 lesions with SRS/fSRT for newly diagnosed brain metastasis at our hospital. During the follow-up period, we treated 19 consecutive patients who underwent 21 SSRs for recurrence, radiation necrosis (RN), and cyst formation after SRS/fSRT for newly diagnosed brain metastasis. Two patients underwent multiple surgical resections. Brain metastasis originated from the lung (n=15, 78.9%), breast (n=3, 15.7%), and colon (n=1, 5.2%). Results: The median time from initial SRS/fSRT to SSR was 14 months (range: 2–96 months). The median follow-up after SSR was 15 months (range: 2–76 months). The range of tumor volume at initial SRS/SRT was 0.121–21.459 cm3 (median: 2.188 cm3). Histopathological diagnosis after SSR was recurrence, RN and cyst formation in 13 and 6 cases, respectively. The median survival time from SSR and from initial SRS/SRT was 17 months and 74 months, respectively. The cases with recurrence had a significantly shorter survival time than those without recurrence (p=0.0453).Conclusion: The patients treated with SRS/fSRT for brain metastasis need long-term follow-up. SSR is a safe and effective treatment for the recurrence, RN, and cyst formation after SRS/fSRT for brain metastasis.

Place of Gamma Knife Stereotactic Radiosurgery in Grade 4 Vestibular Schwannoma Based on Case Series of 86 Patients with Long-Term Follow-Up

2018 ◽  
Vol 114 ◽  
pp. e1192-e1198 ◽  
Author(s):  
Michel Lefranc ◽  
Leila Maria Da Roz ◽  
Anne Balossier ◽  
Jean Marc Thomassin ◽  
Pierre Hugue Roche ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Gamma Knife ◽  
Vestibular Schwannoma ◽  
Case Series ◽  
Long Term Follow Up ◽  
Gamma Knife Stereotactic Radiosurgery

scholarly journals GP.05 The risk of malignancy after stereotactic radiosurgery

2018 ◽  
Vol 45 (s2) ◽  
pp. S9-S9
Author(s):  
AM Wolf ◽  
K Naylor ◽  
D Kondziolka
Keyword(s):  
Stereotactic Radiosurgery ◽  
Incidence Rate ◽  
Malignant Transformation ◽  
The United States ◽  
Benign Tumors ◽  
Long Term Follow Up ◽  
Risk Of Malignancy ◽  
Associated Malignancy

Background: A major concern of patients undergoing Gamma Knife radiosurgery (GKS) for benign tumors and other conditions is the risk of a separate secondary malignancy or malignant -transformation. The incidence of radiosurgery-associated malignancy based on long-term follow-up remains unknown. Methods: We conducted a population-based cohort study to estimate the incidence rate of both malignant transformation and a separate radiation-associated malignancy in patients undergoing GKS from 1987 to 2016 at 5 centers. Results: 11 527 patients underwent radiosurgery for meningioma (n=3261), arteriovenous malformation (n=2868), trigeminal neuralgia (n=1982), vestibular schwannoma (n=1957), pituitary adenoma (n=1193), other (n=266). The follow-up time ranged from 0.3 to 23.8 years. Four cases of malignant transformation and 3 new malignant brain tumors were reported, two of which were not within the irradiated field. The incidence of malignant transformation was 6.6 per 100 000 patient-years and of new malignancy, either locally or distant, was 5 in 100 000 patient-years. These risks are not higher than the Central Brain Tumor Registry of the United States derived annual incidence rate of all primary malignant CNS tumors of 7.15 per 100 000. Conclusions: Physicians can safely counsel patients that the risk of malignancy after stereotactic radiosurgery remains extremely low, even at long-term follow-up of greater than 10 years.

scholarly journals Long-term follow-up of stereotactic radiosurgery for head and neck malignancies

Head & Neck ◽  
2014 ◽  
Vol 37 (11) ◽  
pp. 1557-1562 ◽  
Author(s):  
Dawn Owen ◽  
Fawaad Iqbal ◽  
Bruce E. Pollock ◽  
Michael J. Link ◽  
Kathy Stien ◽  
...  
Keyword(s):  
Head And Neck ◽  
Stereotactic Radiosurgery ◽  
Head And Neck Malignancies ◽  
Long Term Follow Up

scholarly journals Arterial spin labeling perfusion-weighted MRI for long-term follow-up of a cerebral arteriovenous malformation after stereotactic radiosurgery

2014 ◽  
Vol 3 (1) ◽  
pp. 204798161351016 ◽  
Author(s):  
Kazuhiro Shimizu ◽  
Nobuyuki Kosaka ◽  
Tatsuya Yamamoto ◽  
Hiroki Shioura ◽  
Toshiaki Kodera ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Arterial Spin Labeling ◽  
Spin Labeling ◽  
High Signal ◽  
Non Invasive ◽  
Signal Abnormality ◽  
Complete Obliteration ◽  
Long Term Follow Up

We present a longitudinal series of arterial spin-labeling magnetic resonance imaging (ASL-MRI) in a patient with cerebral arteriovenous malformations (AVMs) treated by stereotactic radiosurgery (SRS). Pretreatment ASL-MRI showed high signal intensity in both the nidus and draining veins, and the latter signal abnormality gradually moved proximally by 14 months after SRS. At 24 months, the signal abnormalities finally disappeared, indicating complete obliteration of the nidus. The hemodynamic changes in the AVM were clearly visualized in the longitudinal ASL-MRI series, thus this non-invasive MR method may be useful not only for detecting AVMs but also for assessment of their response after SRS.

710 Long-term Follow-up of Patients with Cavernous Malformations Treated by Stereotactic Radiosurgery

Neurosurgery ◽  
2001 ◽  
Vol 49 (2) ◽  
pp. 509
Author(s):  
Toshinori Hasegawa MD ◽  
James McInerney MD ◽  
John Y.K. Lee ◽  
Douglas Kondziolka MD ◽  
John Flickinger MD ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Cavernous Malformations ◽  
Long Term Follow Up

scholarly journals Long-term follow-up after stereotactic radiosurgery of intracanalicular acoustic neurinoma

2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Daniel Rueß ◽  
Lea Pöhlmann ◽  
Stefan Grau ◽  
Christina Hamisch ◽  
Alexandra Hellerbach ◽  
...  
Keyword(s):  
Stereotactic Radiosurgery ◽  
Acoustic Neurinoma ◽  
Long Term Follow Up
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