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Incidence of Hippocampal Metastases: Laterality and Implications for Unilateral Hippocampal Avoiding Whole Brain Radiotherapy
T. Kazda, A. Misove, P. Burkon, P. Pospisil, L. Hynkova, I. Selingerova, A. Dziacky, R. Belanova, M. Bulik, Z. Rehak, A. Poprach, O. Slama, P. Slampa, O. Slaby, R. Jancalek, R. Lakomy,
Jazyk angličtina Země Spojené státy americké
Typ dokumentu klinické zkoušky, časopisecké články
Grantová podpora
NV15-33590A
MZ0
CEP - Centrální evidence projektů
Digitální knihovna NLK
Plný text - Článek
Zdroj
NLK
Free Medical Journals
od 2013
PubMed Central
od 2013
Europe PubMed Central
od 2013
ProQuest Central
od 2013
Open Access Digital Library
od 2001-01-01
Open Access Digital Library
od 2012-12-04
Open Access Digital Library
od 2013-01-01
CINAHL Plus with Full Text (EBSCOhost)
od 2013-01-01
Medline Complete (EBSCOhost)
od 2013-01-01
Health & Medicine (ProQuest)
od 2013
Wiley-Blackwell Open Access Titles
od 2001
ROAD: Directory of Open Access Scholarly Resources
od 2013
PubMed
30643795
DOI
10.1155/2018/2459608
Knihovny.cz E-zdroje
- MeSH
- hipokampus diagnostické zobrazování MeSH
- léčba šetřící orgány * MeSH
- lidé středního věku MeSH
- lidé MeSH
- metastázy nádorů MeSH
- nádory mozku diagnostické zobrazování patologie radioterapie MeSH
- retrospektivní studie MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- klinické zkoušky MeSH
Introduction: Hippocampi sparing whole brain radiotherapy (WBRT) is an evolving approach in the treatment of patients with multiple brain metastases, pursuing mitigation of verbal memory decline as a consequence of hippocampal radiation injury. Accumulating data are showing different postradiotherapy changes in the left and right hippocampus with a theoretical proposal of only unilateral (dominant, left) hippocampal sparing during WBRT. Method: The aim of this retrospective study is to describe spatial distribution of brain metastases on MRI in a cohort of 260 patients (2595 metastases) and to evaluate distribution separately in the left and right hippocampus and in respective hippocampal avoiding zones (HAZ, region with subtherapeutic radiation dose), including evaluation of location of metastatic mass centre. Results: The median number of brain metastases was three, with lung cancer being the most common type of primary tumour; 36% had single metastasis. Almost 8% of patients had metastasis within hippocampus (1.1% of all metastases) and 18.1% of patients within HAZ (3.3% of all metastases). No statistically significant difference was observed in the laterality of hippocampal involvement, also when the location of centre of metastases was analyzed. There were more patients presenting the centre of metastasis within left (15) versus right (6) HAZ approaching the borderline of statistical significance. Conclusion: No significant difference in the laterality of BM seeding within hippocampal structures was observed. The hypothesized unilateral sparing WBRT would have theoretical advantage in about 50% reduction in the risk of subsequent recurrence within spared regions.
Citace poskytuje Crossref.org
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- $a Kazda, Tomas $u Department of Radiation Oncology, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53 Brno, Czech Republic. Department of Radiation Oncology, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic. Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
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- $a Incidence of Hippocampal Metastases: Laterality and Implications for Unilateral Hippocampal Avoiding Whole Brain Radiotherapy / $c T. Kazda, A. Misove, P. Burkon, P. Pospisil, L. Hynkova, I. Selingerova, A. Dziacky, R. Belanova, M. Bulik, Z. Rehak, A. Poprach, O. Slama, P. Slampa, O. Slaby, R. Jancalek, R. Lakomy,
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- $a Introduction: Hippocampi sparing whole brain radiotherapy (WBRT) is an evolving approach in the treatment of patients with multiple brain metastases, pursuing mitigation of verbal memory decline as a consequence of hippocampal radiation injury. Accumulating data are showing different postradiotherapy changes in the left and right hippocampus with a theoretical proposal of only unilateral (dominant, left) hippocampal sparing during WBRT. Method: The aim of this retrospective study is to describe spatial distribution of brain metastases on MRI in a cohort of 260 patients (2595 metastases) and to evaluate distribution separately in the left and right hippocampus and in respective hippocampal avoiding zones (HAZ, region with subtherapeutic radiation dose), including evaluation of location of metastatic mass centre. Results: The median number of brain metastases was three, with lung cancer being the most common type of primary tumour; 36% had single metastasis. Almost 8% of patients had metastasis within hippocampus (1.1% of all metastases) and 18.1% of patients within HAZ (3.3% of all metastases). No statistically significant difference was observed in the laterality of hippocampal involvement, also when the location of centre of metastases was analyzed. There were more patients presenting the centre of metastasis within left (15) versus right (6) HAZ approaching the borderline of statistical significance. Conclusion: No significant difference in the laterality of BM seeding within hippocampal structures was observed. The hypothesized unilateral sparing WBRT would have theoretical advantage in about 50% reduction in the risk of subsequent recurrence within spared regions.
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