Locoregional Tumor Progression After Radiation Therapy Influences Overall Survival in Pediatric Patients With Neuroblastoma

Atmaram S. Pai Panandiker, Lisa McGregor, Matthew J. Krasin, Shengjie Wu, Xiaoping Xiong, Thomas E. Merchant

Research output: Contribution to journalArticle

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Abstract

Purpose: There is renewed attention to primary site irradiation and local control for patients with high-risk neuroblastoma (NB). We conducted a retrospective review to identify factors that might predict for locoregional tumor control and its impact on overall survival. Methods and Materials: Between July 2000 through August 2006, a total of 44 pediatric patients with NB received radiation therapy (RT) with curative intent using computed tomography (CT)-based treatment planning. The median age was 3.4 years and the median cumulative dose was 23.4 Gy. Overall survival and locoregional tumor control were measured from the start of RT to the date of death or event as determined by CT/magnetic resonance imaging/meta-iodobenzylguanidine. The influence of age at irradiation, gender, race, cumulative radiation dose, International Neuroblastoma Staging System stage, treatment protocol and resection status was determined with respect to locoregional tumor control. Results: With a median follow-up of 34 months ± 21 months, locoregional tumor progression was observed in 11 (25%) and was evenly divided between primary site and adjacent nodal/visceral site failure. The influence of locoregional control reached borderline statistical significance (p = 0.06). Age (p = 0.5), dose (p = 0.6), resection status (p = 0.7), and International Neuroblastoma Staging System stage (p = 0.08) did not influence overall survival. Conclusions: Overall survival in high-risk neuroblastoma is influenced by locoregional tumor control. Despite CT-based planning, progression in adjacent nodal/visceral sites appears to be common; this requires further investigation regarding target volume definitions, dose, and the effects of systemic therapy.

Original languageEnglish (US)
Pages (from-to)1161-1165
Number of pages5
JournalInternational Journal of Radiation Oncology Biology Physics
Volume76
Issue number4
DOIs
StatePublished - Mar 15 2010

Fingerprint

Neuroblastoma
progressions
radiation therapy
Radiotherapy
tumors
Pediatrics
Survival
Tomography
dosage
Neoplasms
tomography
planning
3-Iodobenzylguanidine
Clinical Protocols
irradiation
death
magnetic resonance
Magnetic Resonance Imaging
therapy
Radiation

All Science Journal Classification (ASJC) codes

  • Cancer Research
  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Radiation

Cite this

Pai Panandiker, Atmaram S. ; McGregor, Lisa ; Krasin, Matthew J. ; Wu, Shengjie ; Xiong, Xiaoping ; Merchant, Thomas E. / Locoregional Tumor Progression After Radiation Therapy Influences Overall Survival in Pediatric Patients With Neuroblastoma. In: International Journal of Radiation Oncology Biology Physics. 2010 ; Vol. 76, No. 4. pp. 1161-1165.
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Locoregional Tumor Progression After Radiation Therapy Influences Overall Survival in Pediatric Patients With Neuroblastoma. / Pai Panandiker, Atmaram S.; McGregor, Lisa; Krasin, Matthew J.; Wu, Shengjie; Xiong, Xiaoping; Merchant, Thomas E.

In: International Journal of Radiation Oncology Biology Physics, Vol. 76, No. 4, 15.03.2010, p. 1161-1165.

Research output: Contribution to journalArticle

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T1 - Locoregional Tumor Progression After Radiation Therapy Influences Overall Survival in Pediatric Patients With Neuroblastoma

AU - Pai Panandiker, Atmaram S.

AU - McGregor, Lisa

AU - Krasin, Matthew J.

AU - Wu, Shengjie

AU - Xiong, Xiaoping

AU - Merchant, Thomas E.

PY - 2010/3/15

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N2 - Purpose: There is renewed attention to primary site irradiation and local control for patients with high-risk neuroblastoma (NB). We conducted a retrospective review to identify factors that might predict for locoregional tumor control and its impact on overall survival. Methods and Materials: Between July 2000 through August 2006, a total of 44 pediatric patients with NB received radiation therapy (RT) with curative intent using computed tomography (CT)-based treatment planning. The median age was 3.4 years and the median cumulative dose was 23.4 Gy. Overall survival and locoregional tumor control were measured from the start of RT to the date of death or event as determined by CT/magnetic resonance imaging/meta-iodobenzylguanidine. The influence of age at irradiation, gender, race, cumulative radiation dose, International Neuroblastoma Staging System stage, treatment protocol and resection status was determined with respect to locoregional tumor control. Results: With a median follow-up of 34 months ± 21 months, locoregional tumor progression was observed in 11 (25%) and was evenly divided between primary site and adjacent nodal/visceral site failure. The influence of locoregional control reached borderline statistical significance (p = 0.06). Age (p = 0.5), dose (p = 0.6), resection status (p = 0.7), and International Neuroblastoma Staging System stage (p = 0.08) did not influence overall survival. Conclusions: Overall survival in high-risk neuroblastoma is influenced by locoregional tumor control. Despite CT-based planning, progression in adjacent nodal/visceral sites appears to be common; this requires further investigation regarding target volume definitions, dose, and the effects of systemic therapy.

AB - Purpose: There is renewed attention to primary site irradiation and local control for patients with high-risk neuroblastoma (NB). We conducted a retrospective review to identify factors that might predict for locoregional tumor control and its impact on overall survival. Methods and Materials: Between July 2000 through August 2006, a total of 44 pediatric patients with NB received radiation therapy (RT) with curative intent using computed tomography (CT)-based treatment planning. The median age was 3.4 years and the median cumulative dose was 23.4 Gy. Overall survival and locoregional tumor control were measured from the start of RT to the date of death or event as determined by CT/magnetic resonance imaging/meta-iodobenzylguanidine. The influence of age at irradiation, gender, race, cumulative radiation dose, International Neuroblastoma Staging System stage, treatment protocol and resection status was determined with respect to locoregional tumor control. Results: With a median follow-up of 34 months ± 21 months, locoregional tumor progression was observed in 11 (25%) and was evenly divided between primary site and adjacent nodal/visceral site failure. The influence of locoregional control reached borderline statistical significance (p = 0.06). Age (p = 0.5), dose (p = 0.6), resection status (p = 0.7), and International Neuroblastoma Staging System stage (p = 0.08) did not influence overall survival. Conclusions: Overall survival in high-risk neuroblastoma is influenced by locoregional tumor control. Despite CT-based planning, progression in adjacent nodal/visceral sites appears to be common; this requires further investigation regarding target volume definitions, dose, and the effects of systemic therapy.

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