Stereotactic radiosurgery for treatment of brain metastases: A report of the DEGRO Working Group on Stereotactic Radiotherapy

Background This report from the Working Group on Stereotaktische Radiotherapie of the German Society of Radiation Oncology ( Deutsche Gesellschaft für Radioonkologie , DEGRO) provides recommendations for the use of stereotactic radiosurgery (SRS) on patients with brain metastases. It considers exist...

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Veröffentlicht in:Strahlentherapie und Onkologie 2014-06, Vol.190 (6), p.521-532
Hauptverfasser: Kocher, Martin, Wittig, Andrea, Piroth, Marc Dieter, Treuer, Harald, Seegenschmiedt, Heinrich, Ruge, Maximilian, Grosu, Anca-Ligia, Guckenberger, Matthias
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container_title Strahlentherapie und Onkologie
container_volume 190
creator Kocher, Martin
Wittig, Andrea
Piroth, Marc Dieter
Treuer, Harald
Seegenschmiedt, Heinrich
Ruge, Maximilian
Grosu, Anca-Ligia
Guckenberger, Matthias
description Background This report from the Working Group on Stereotaktische Radiotherapie of the German Society of Radiation Oncology ( Deutsche Gesellschaft für Radioonkologie , DEGRO) provides recommendations for the use of stereotactic radiosurgery (SRS) on patients with brain metastases. It considers existing international guidelines and details them where appropriate. Results and discussion The main recommendations are: Patients with solid tumors except germ cell tumors and small-cell lung cancer with a life expectancy of more than 3 months suffering from a single brain metastasis of less than 3 cm in diameter should be considered for SRS. Especially when metastases are not amenable to surgery, are located in the brain stem, and have no mass effect, SRS should be offered to the patient. For multiple (two to four) metastases—all less than 2.5 cm in diameter—in patients with a life expectancy of more than 3 months, SRS should be used rather than whole-brain radiotherapy (WBRT). Adjuvant WBRT after SRS for both single and multiple (two to four) metastases increases local control and reduces the frequency of distant brain metastases, but does not prolong survival when compared with SRS and salvage treatment. As WBRT carries the risk of inducing neurocognitive damage, it seems reasonable to withhold WBRT for as long as possible. Conclusion A single (marginal) dose of 20 Gy is a reasonable choice that balances the effect on the treated lesion (local control, partial remission) against the risk of late side effects (radionecrosis). Higher doses (22–25 Gy) may be used for smaller (
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It considers existing international guidelines and details them where appropriate. Results and discussion The main recommendations are: Patients with solid tumors except germ cell tumors and small-cell lung cancer with a life expectancy of more than 3 months suffering from a single brain metastasis of less than 3 cm in diameter should be considered for SRS. Especially when metastases are not amenable to surgery, are located in the brain stem, and have no mass effect, SRS should be offered to the patient. For multiple (two to four) metastases—all less than 2.5 cm in diameter—in patients with a life expectancy of more than 3 months, SRS should be used rather than whole-brain radiotherapy (WBRT). Adjuvant WBRT after SRS for both single and multiple (two to four) metastases increases local control and reduces the frequency of distant brain metastases, but does not prolong survival when compared with SRS and salvage treatment. As WBRT carries the risk of inducing neurocognitive damage, it seems reasonable to withhold WBRT for as long as possible. Conclusion A single (marginal) dose of 20 Gy is a reasonable choice that balances the effect on the treated lesion (local control, partial remission) against the risk of late side effects (radionecrosis). Higher doses (22–25 Gy) may be used for smaller (&lt; 1 cm) lesions, while a dose reduction to 18 Gy may be necessary for lesions greater than 2.5–3 cm. As the infiltration zone of the brain metastases is usually small, the GTV–CTV (gross tumor volume–clinical target volume) margin should be in the range of 0–1 mm. The CTV–PTV (planning target volume) margin depends on the treatment technique and should lie in the range of 0–2 mm. Distant brain recurrences fulfilling the aforementioned criteria can be treated with SRS irrespective of previous WBRT.</description><identifier>ISSN: 0179-7158</identifier><identifier>EISSN: 1439-099X</identifier><identifier>DOI: 10.1007/s00066-014-0648-7</identifier><identifier>PMID: 24715242</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Brain - surgery ; Brain Damage, Chronic - diagnosis ; Brain Neoplasms - mortality ; Brain Neoplasms - secondary ; Brain Neoplasms - surgery ; Combined Modality Therapy ; Cranial Irradiation ; Follow-Up Studies ; Germany ; Guideline Adherence ; Humans ; Medicine ; Medicine &amp; Public Health ; Neoplasm, Residual - pathology ; Neoplasm, Residual - surgery ; Oncology ; Original Article ; Postoperative Complications - diagnosis ; Radiation Injuries - diagnosis ; Radiation Oncology ; Radiosurgery ; Radiotherapy ; Radiotherapy, Adjuvant ; Reoperation ; Salvage Therapy ; Societies, Medical ; Survival Rate</subject><ispartof>Strahlentherapie und Onkologie, 2014-06, Vol.190 (6), p.521-532</ispartof><rights>Springer-Verlag Berlin Heidelberg 2014</rights><rights>Springer Heidelberg Berlin 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c324t-a7ae9715a2f88e6b07a0df567a97c49ee2956eb2ea46239cc46ad065fb59c7693</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00066-014-0648-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00066-014-0648-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51298</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24715242$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kocher, Martin</creatorcontrib><creatorcontrib>Wittig, Andrea</creatorcontrib><creatorcontrib>Piroth, Marc Dieter</creatorcontrib><creatorcontrib>Treuer, Harald</creatorcontrib><creatorcontrib>Seegenschmiedt, Heinrich</creatorcontrib><creatorcontrib>Ruge, Maximilian</creatorcontrib><creatorcontrib>Grosu, Anca-Ligia</creatorcontrib><creatorcontrib>Guckenberger, Matthias</creatorcontrib><title>Stereotactic radiosurgery for treatment of brain metastases: A report of the DEGRO Working Group on Stereotactic Radiotherapy</title><title>Strahlentherapie und Onkologie</title><addtitle>Strahlenther Onkol</addtitle><addtitle>Strahlenther Onkol</addtitle><description>Background This report from the Working Group on Stereotaktische Radiotherapie of the German Society of Radiation Oncology ( Deutsche Gesellschaft für Radioonkologie , DEGRO) provides recommendations for the use of stereotactic radiosurgery (SRS) on patients with brain metastases. It considers existing international guidelines and details them where appropriate. Results and discussion The main recommendations are: Patients with solid tumors except germ cell tumors and small-cell lung cancer with a life expectancy of more than 3 months suffering from a single brain metastasis of less than 3 cm in diameter should be considered for SRS. Especially when metastases are not amenable to surgery, are located in the brain stem, and have no mass effect, SRS should be offered to the patient. For multiple (two to four) metastases—all less than 2.5 cm in diameter—in patients with a life expectancy of more than 3 months, SRS should be used rather than whole-brain radiotherapy (WBRT). Adjuvant WBRT after SRS for both single and multiple (two to four) metastases increases local control and reduces the frequency of distant brain metastases, but does not prolong survival when compared with SRS and salvage treatment. As WBRT carries the risk of inducing neurocognitive damage, it seems reasonable to withhold WBRT for as long as possible. Conclusion A single (marginal) dose of 20 Gy is a reasonable choice that balances the effect on the treated lesion (local control, partial remission) against the risk of late side effects (radionecrosis). Higher doses (22–25 Gy) may be used for smaller (&lt; 1 cm) lesions, while a dose reduction to 18 Gy may be necessary for lesions greater than 2.5–3 cm. As the infiltration zone of the brain metastases is usually small, the GTV–CTV (gross tumor volume–clinical target volume) margin should be in the range of 0–1 mm. The CTV–PTV (planning target volume) margin depends on the treatment technique and should lie in the range of 0–2 mm. 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It considers existing international guidelines and details them where appropriate. Results and discussion The main recommendations are: Patients with solid tumors except germ cell tumors and small-cell lung cancer with a life expectancy of more than 3 months suffering from a single brain metastasis of less than 3 cm in diameter should be considered for SRS. Especially when metastases are not amenable to surgery, are located in the brain stem, and have no mass effect, SRS should be offered to the patient. For multiple (two to four) metastases—all less than 2.5 cm in diameter—in patients with a life expectancy of more than 3 months, SRS should be used rather than whole-brain radiotherapy (WBRT). Adjuvant WBRT after SRS for both single and multiple (two to four) metastases increases local control and reduces the frequency of distant brain metastases, but does not prolong survival when compared with SRS and salvage treatment. As WBRT carries the risk of inducing neurocognitive damage, it seems reasonable to withhold WBRT for as long as possible. Conclusion A single (marginal) dose of 20 Gy is a reasonable choice that balances the effect on the treated lesion (local control, partial remission) against the risk of late side effects (radionecrosis). Higher doses (22–25 Gy) may be used for smaller (&lt; 1 cm) lesions, while a dose reduction to 18 Gy may be necessary for lesions greater than 2.5–3 cm. As the infiltration zone of the brain metastases is usually small, the GTV–CTV (gross tumor volume–clinical target volume) margin should be in the range of 0–1 mm. The CTV–PTV (planning target volume) margin depends on the treatment technique and should lie in the range of 0–2 mm. Distant brain recurrences fulfilling the aforementioned criteria can be treated with SRS irrespective of previous WBRT.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>24715242</pmid><doi>10.1007/s00066-014-0648-7</doi><tpages>12</tpages></addata></record>
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subjects Brain - surgery
Brain Damage, Chronic - diagnosis
Brain Neoplasms - mortality
Brain Neoplasms - secondary
Brain Neoplasms - surgery
Combined Modality Therapy
Cranial Irradiation
Follow-Up Studies
Germany
Guideline Adherence
Humans
Medicine
Medicine & Public Health
Neoplasm, Residual - pathology
Neoplasm, Residual - surgery
Oncology
Original Article
Postoperative Complications - diagnosis
Radiation Injuries - diagnosis
Radiation Oncology
Radiosurgery
Radiotherapy
Radiotherapy, Adjuvant
Reoperation
Salvage Therapy
Societies, Medical
Survival Rate
title Stereotactic radiosurgery for treatment of brain metastases: A report of the DEGRO Working Group on Stereotactic Radiotherapy
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