title: Analysis on therapeutic outcomes and prognostic factors of intracranial ependymoma: a report of 49 clinical cases in a single center.
abstract: Although intracranial ependymoma is relatively rare, it is often associated with great clinical aggressiveness and poor overall survival. There are controversies over factors affecting the prognosis of the disease. The aim of this retrospective study was to evaluate factors that may affect the therapeutic outcome and prognosis of intracranial ependymoma by reviewing the medical records of 49 patients who were surgically treated in our hospital between 2001 and 2014. Univariate and multivariate analyses were performed to identify prognostic variables relative to patient and tumor characteristics, and treatment modalities. All 49 patients (24 men and 25 women; mean age 27.6 years) underwent surgical resection, of whom 14 patients also underwent postoperative radiotherapy. Local recurrence was found in 15 (48.8 %) patients, and 22 (51.2 %) patients died during the follow-up periods. The 5-year recurrence rate was 65 % and the survival rate was 51 %. The results of statistical analysis suggested that preoperative extraventricular drainage and surgical resection extent were prognostic factors related to progression-free survival, and that age, surgical resection extent and histological grade were closely associated with survival. Interestingly, there was a significant correlation between the symptom of hydrocephalus and age (P = 0.010), and patients with a better clinical status (KPS ≥ 80) were significantly associated with a lower WHO grade (P = 0.007). In conclusion, we confirmed that surgical resection extent was the major independent factor affecting both recurrence and survival of patients with intracranial ependymoma, while age and WHO grade were prognostic factors affecting survival but not recurrence.
authors.affiliation: Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.|Department of Neurosurgery, CPLA No.98 Hospital, Huzhou, 313000, China.
authors.forename: Jingliang
authors.initials: J
authors.lastname: Ye
authors.affiliation: Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
authors.forename: Junle
authors.initials: J
authors.lastname: Zhu
authors.affiliation: Department of Radiology, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China.
authors.forename: Jiayi
authors.initials: J
authors.lastname: Yan
authors.affiliation: Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
authors.forename: Peiqin
authors.initials: P
authors.lastname: Chen
authors.affiliation: Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
authors.forename: Zhiping
authors.initials: Z
authors.lastname: Wan
authors.affiliation: Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Chen
authors.affiliation: Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Qian
authors.affiliation: Department of Neurosurgery, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China. boyluochun@126.com.
authors.forename: Chun
authors.initials: C
authors.lastname: Luo
mesh_terms: D000293:Adolescent; D000328:Adult; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000401:mortality / Q000628:therapy*; D002648:Child; D002675:Child, Preschool; D003131:Combined Modality Therapy; D018572:Disease-Free Survival; D004806:Ependymoma / Q000175:diagnosis* / Q000401:mortality / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis* / Q000401:mortality / Q000628:therapy; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate; D016896:Treatment Outcome; D055815:Young Adult
keywords: Clinical factor; Clinical symptom; Ependymoma; Intracranial tumor; Prognosis