scholarly journals Second Cancer Risk in Childhood Cancer Survivors Treated With Intensity-Modulated Radiation Therapy (IMRT): An Updated Analysis of More Than 10 Years of Follow-Up

Author(s):  
Kathryn Tringale ◽  
Dana Casey ◽  
Gregory Niyazov ◽  
Jessica Lavery ◽  
Chaya Moskowitz ◽  
...  

Background It is unclear how intensity-modulated radiation therapy (IMRT) impacts long-term risk of second malignant neoplasms (SMNs) in childhood cancer patients. Procedure Patients aged 10 years, many solid SMNs after IMRT in childhood cancer survivors develop in the high dose region. These data serve as a foundation for comparison with other modalities of radiation treatment (e.g., proton therapy).

2014 ◽  
Vol 62 (2) ◽  
pp. 311-316 ◽  
Author(s):  
Dana L. Casey ◽  
Danielle N. Friedman ◽  
Chaya S. Moskowitz ◽  
Patrick D. Hilden ◽  
Charles A. Sklar ◽  
...  

2020 ◽  
Vol 38 (15) ◽  
pp. 1711-1722 ◽  
Author(s):  
Adam P. Yan ◽  
Yan Chen ◽  
Tara O. Henderson ◽  
Kevin C. Oeffinger ◽  
Melissa M. Hudson ◽  
...  

PURPOSE To evaluate childhood cancer survivors’ adherence to surveillance protocols for late effects of treatment and to determine the factors affecting adherence. METHODS Between 2014 and 2016, 11,337 survivors and 2,146 siblings in the Childhood Cancer Survivor Study completed a survey ascertaining adherence to Children’s Oncology Group (COG) guidelines for survivors at high risk for second malignant neoplasms or cardiac dysfunction and to the American Cancer Society (ACS) cancer screening guidelines for average-risk populations. Adherence rates and factors affecting adherence were analyzed. RESULTS Median age at diagnosis was 7 years (range, 0-20.9 years), and median time from diagnosis was 29 years (range, 15-47 years). Among high-risk survivors, adherence to COG breast, colorectal, skin, and cardiac surveillance was 12.6% (95% CI, 10.0% to 15.3%), 37.0% (34.1% to 39.9%), 22.3% (21.2% to 23.4%), and 41.4% (40.1% to 42.7%), respectively. Among average-risk survivors, adherence to ACS breast, cervical, and colorectal screening was 57.1% (53.2% to 61.0%), 83.6% (82.7% to 84.5%), and 68.5% (64.7% to 72.2%), respectively. Twenty-seven percent of survivors and 20.0% of primary care providers (PCPs) had a survivorship care plan (SCP). For high-risk survivors, SCP possession was associated with increased adherence to COG breast (22.3% v. 8.1%; prevalence ratio [PR], 2.52; CI, 1.59 to 4.01), skin (34.8% v 23.0%; PR, 1.16; CI, 1.01 to 1.33), and cardiac (67.0% v 33.1%; PR, 1.73; CI, 1.55 to 1.92) surveillance. For high-risk survivors, PCP possession of a SCP was associated only with increased adherence to COG skin cancer surveillance (36.9% v 23.2%; PR, 1.24; CI, 1.08 to 1.43). CONCLUSION Guideline adherence is suboptimal. Although survivor SCP possession is associated with better adherence, few survivors and PCPs have one. New strategies to improve adherence are needed.


2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 10569-10569
Author(s):  
Chu-Ling Yu ◽  
Emily S. Tonorezos ◽  
Chiung-Yu Huang ◽  
Brian C-H Chiu ◽  
Chun-Ju Chiang ◽  
...  

10569 Background: Childhood cancer survivors have excess risk of second malignant neoplasms, but data are limited in Asian populations. We established a nationwide retrospective cohort of childhood cancer survivors in Taiwan to study the risk of second malignant neoplasms in the population. Methods: Children and adolescents diagnosed with cancer before age 21 years between 1990 and 2011 were identified from the Taiwan Cancer Registry, the national cancer registry in Taiwan. One-year survivors of childhood cancer were ascertained through data linkage with the national death registry. Survivors were followed up through December 2012. Standardized incidence ratios (SIRs), absolute excess risks (AERs), and cumulative incidence of second malignant neoplasms were calculated. Results: A total of 186 second malignant neoplasms occurred among 15,263 1-year survivors of childhood cancer after a mean follow-up time of 8.0 years (SIR = 5.4, 95% confidence interval [CI] = 4.6-6.2; AER = 12.4 per 10,000 person-years). The most common types of second malignant neoplasms were gastrointestinal cancers (n = 37), leukemia (n = 28), endocrine cancers (n = 18), and brain cancer (n = 17). Cancers in the liver (n = 11, including 9 hepatocellular carcinoma) and colorectum (n = 16) accounted for 73% of second gastrointestinal malignant neoplasms in this population. The cumulative incidence of second malignant neoplasms at 10 and 20 years from follow-up was 1.0% (95% CI = 0.8-1.2%) and 3.0% (95% CI = 2.3-3.6%), respectively. Conclusions: Childhood cancer survivors in Taiwan experience excess risk of second malignant neoplasms, in particular gastrointestinal cancers, compared with the general population.


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