A single center clinical analysis of children with high-risk neuroblastoma

// Xiangdong Tian 1, * , Yanna Cao 1, * , Jingfu Wang 1 , Jie Yan 1 , Yao Tian 2 , Zhongyuan Li 1 , Huijuan Wang 1 , Xiaofeng Duan 1 , Yan Jin 1 , Qiang Zhao 1 1 Department of Pediatric Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy of Tianjin, Tianjin’s Clinical Research Center for Cancer, Tianjin, People’s Republic of China 2 Department of Radiotherapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy of Tianjin, Tianjin’s Clinical Research Center for Cancer, Tianjin, People’s Republic of China * These authors have contributed equally to this work Correspondence to: Qiang Zhao, email: qiangzhao169@sina.com Keywords: neuroblastoma, high-risk, treatment, surgery extent, survival rate Received: November 16, 2016     Accepted: February 13, 2017     Published: March 07, 2017 ABSTRACT The current multidisciplinary treatment for patients with high-risk neuroblastoma (NB) is the common census. However, protocols and opinions are different in different regions and institutions. We aimed to assess the protocol formulated by Chinese Children’s Cancer Group study in 2009, and the impact of surgery extent was highlightly evaluated. Methods: This study enrolled patients with high-risk neuroblastoma between 2009 and 2014 in Department of Pediatric Oncology of Tianjin Medical University Cancer Institute and Hospital. The clinical characteristics of patients were illustrated and surgery extent was evaluated by the impact on survival rate. Results: The 3-year overall survival (OS) and progression-free survival (PFS) were 56.2% and 50.5%, respectively. LDH ( P <0.001), bone marrow metastasis at time of diagnosis ( P =0.001), bone marrow negative after neoadjuvant chemotherapy ( P <0.001), radiotherapy ( P <0.001) were significant predictors of OS and PFS. And surgery extent had no impact on the enhancement of high-risk neuroblastoma patients in short time. Conclusions: This study showed no substantial survival benefit in patients with high-risk NB undergoing gross total tumor resection. Multidisciplinary intensive treatment was essential, especially for patients received subtotal tumor resection. Longer term follow-up is needed to survey complications in surviving patients who received intensive chemotherapy and radiotherapy.