Proton beam therapy reduces the incidence of acute haematological and gastrointestinal toxicities associated with craniospinal irradiation in pediatric brain tumors

被引:37
作者
Song, Sanghyuk [1 ,3 ]
Park, Hyeon Jin [2 ]
Yoon, Jong Hyung [2 ]
Kim, Dae Woong [1 ]
Park, Jeonghoon [1 ]
Shin, Dongho [1 ]
Shin, Sang Hoon [2 ]
Kang, Hyoung Jin [4 ]
Kim, Seung-Ki [5 ]
Phi, Ji Hoon [5 ]
Kim, Joo-Young [1 ,2 ]
机构
[1] Natl Canc Ctr, Res Inst & Hosp, Proton Therapy Ctr, Seoul, South Korea
[2] Natl Canc Ctr, Res Inst & Hosp, Ctr Pediat Oncol, Seoul, South Korea
[3] Seoul Natl Univ, Coll Med, Dept Radiat Oncol, Canc Res Inst, Seoul, South Korea
[4] Seoul Natl Univ, Coll Med, Dept Pediat, Canc Res Inst, Seoul, South Korea
[5] Seoul Natl Univ, Childrens Hosp Med, Div Pediat Neurosurg, Seoul, South Korea
关键词
SERUM THROMBOPOIETIN LEVELS; LIVER-CIRRHOSIS; CHRONIC HEPATITIS; MEDULLOBLASTOMA; PHOTON; RADIOTHERAPY; RADIATION; CANCER; RISK;
D O I
10.3109/0284186X.2014.887225
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background. The benefits of proton beam craniospinal irradiation (PrBCSI) in children have been extensively reported in dosimetric studies. However, there is limited clinical evidence supporting the use of PrBCSI. We compared the acute toxicity of PrBCSI relative to that of conventional photon beam CSI (PhBCSI) in children with brain tumours. Material and methods. We prospectively evaluated the haematological and gastrointestinal toxicities in 30 patients who underwent PrBCSI between April 2008 and December 2012. As a reference group, we retrospectively evaluated the medical records of 13 patients who underwent PhBCSI between April 2003 and April 2012. The median follow-up time from starting CSI was 22 months (range 2-118 months). The mean irradiation dose was 32.1 Gy (range 23.4-39.6 Gy) and 29.4 CGE (cobalt grey equivalents; range 19.8-39.6), in the PrBCSI and PhBCSI groups, respectively (p = 0.236). Results. There was no craniospinal fluid space relapse after curative therapy in either group of patients. Thrombocytopenia was less severe in the PrBCSI group than in the PhBCSI group (p = 0.012). The recovery rates of leukocyte and platelet counts measured one month after treatment were significantly greater in the PrBCSI group than in the PhBCSI group (p = 0.003 and p = 0.010, respectively). Diarrhoea was reported by 23% of patients in the PhBCSI group versus none in the PrBCSI group (p = 0.023). Conclusions. The incidence rates of thrombocytopenia and diarrhoea were lower in the PrBCSI group than in the PhBCSI group. One month after completing treatment, the recovery from leukopenia and thrombocytopenia was better in patients treated with PrBCSI than in those treated with PhBCSI.
引用
收藏
页码:1158 / 1164
页数:7
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