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- W2895982634 abstract "To prospectively evaluate the effectiveness, toxicity and cognitive function of hippocampal-sparing prophylactic cranial irradiation(HS-PCI) in patients with small-cell lung cancer by using helical Tomotherapy(HT). Between April 2014 and March 2017, 49 Patients with SCLC, achieving a complete response to chemoradiotherapy and no brain metastases, were eligible. The hippocampus was contoured, and hippocampal avoidance regions were created using a 3mm volumetric expansion around the hippocampus. Patients received PCI 25 Gy/10 fractions, with a mean hippocampal dose limited to <8 Gy. The toxicity, cranial metastasis, neurocognitive function of patients will be evaluated. The cognitive function measured by the Hopkins Verbal Learning Test-Revised and Mini-mental State Examination at 6 months and 12months after PCI. HT spared the hippocampus and expansion around the hippocampus with 7.23Gy and 8.46Gy. hippocampal dose was reduced to 71.88% and 66.16% to compare with Prescription doses. Hippocampal maximum dose was 10.66Gy. 8 patients were dead. 1-year and 2-year survival rate were 85.1% and 70.3%. 9 patients occurred brain metastases(18.3%). None >3 grade toxicity was observed. The toxicity was mainly headache, dizziness, hair loss reactions. No significant decline in MMSE(minimum-mental state examination) scores was observed(29.42,29.25,29.10score,p=0.337,0.212). After 1 year from treatment, the HVLT score was relatively decline 6.78% (19.90, 18.65, p=0.001) compared with pretreatment score. However, there were no significant decline of HVLT score in the patients without brain metastases(p=0.763). This study suggests a potential benefit of hippocampal-sparing PCI in SCLC patients with rates of brain and hippocampal metastases consistent with standard PCI. Further research and long-term observation was required." @default.
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- W2895982634 date "2018-11-01" @default.
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- W2895982634 title "Hippocampal-Sparing Prophylactic Cranial Irradiation in Small Cell Lung Cancer: A Phase II Clinical Trial" @default.
- W2895982634 doi "https://doi.org/10.1016/j.ijrobp.2018.07.1938" @default.
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