Cancer Research and Treatment

Hee Rim Nam

2 Articles

Pediatric cancer

Chronological Analysis of Acute Hematological Outcomes after Proton and Photon Beam Craniospinal Irradiation in Pediatric Brain Tumors: Gyu Sang Yoo, Jeong Il Yu, Sungkoo Cho, Youngyih Han, Yoonjin Oh, Do Hoon Lim, Hee Rim Nam, Ji-Won Lee, Ki-Woong Sung, Hyung Jin Shin; Cancer Res Treat. 2022;54(3):907-916. Published online October 15, 2021; DOI: https://doi.org/10.4143/crt.2021.332

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Purpose
This study aimed to compare the early hematological dynamics and acute toxicities between proton beam craniospinal irradiation (PrCSI) and photon beam craniospinal irradiation (PhCSI) for pediatric brain tumors.
Materials and Methods
We retrospectively reviewed patients with pediatric brain tumors who received craniospinal irradiation (CSI). The average change in hemoglobin levels (ΔHb_avg), absolute lymphocyte counts (ΔALC_avg), and platelet counts (ΔPLT_avg) from baseline values was evaluated and compared between the PrCSI and PhCSI groups at 1 and 2 weeks after the initiation of CSI, 1 week before and at the end of radiotherapy, and 3-4 weeks after the completion of radiotherapy using t test and mixed-model analysis.
Results
The PrCSI and PhCSI groups consisted of 36 and 30 patients, respectively. There were no significant differences in ΔHb_avg between the two groups at any timepoint. However, ΔALC_avg and ΔPLT_avg were significantly lower in the PhCSI group than in PrCSI group at every timepoint, demonstrating that PrCSI resulted in a significantly lower rate of decline and better recovery of absolute lymphocyte and platelet counts. The rate of grade 3 acute anemia was significantly lower in the PrCSI group than in in the PhCSI group.
Conclusion
PrCSI showed a lower rate of decline and better recovery of absolute lymphocyte and platelet counts than PhCSI in the CSI for pediatric brain tumors. Grade 3 acute anemia was significantly less frequent in the PrCSI group than in the PhCSI group. Further large-scale studies are warranted to confirm these results.

Citations

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Long-term effects of local radiotherapy on growth and vertebral features in children with high-risk neuroblastoma
Kyungmi Yang, Joong Hyun Ahn, Sook-Young Woo, Sang Hoon Jung, Ki Woong Sung, Ji Won Lee, Do Hoon Lim
BMC Pediatrics.2024;[Epub] CrossRef
Comparison of Craniospinal Irradiation Using Proton Beams According to Irradiation Method and Initial Experience Treating Pediatric Patients
Nobuyoshi Fukumitsu, Hikaru Kubota, Masayuki Mima, Yusuke Demizu, Takeshi Suzuki, Daiichiro Hasegawa, Yoshiyuki Kosaka, Atsufumi Kawamura, Toshinori Soejima
Advances in Radiation Oncology.2023; 8(5): 101251. CrossRef
Proton versus photon radiation therapy: A clinical review
Zhe Chen, Michael M. Dominello, Michael C. Joiner, Jay W. Burmeister
Frontiers in Oncology.2023;[Epub] CrossRef
Shifting Strategies in the Treatment of Pediatric Craniopharyngioma
Segev Gabay, Thomas E. Merchant, Frederick A. Boop, Jonathan Roth, Shlomi Constantini
Current Oncology Reports.2023; 25(12): 1497. CrossRef

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High Dose Radiation Therapy Concurrent with Chemotherapy in Locally Advanced Nasopharynx Cancer: Min Kyu Kang, Yong Chan Ahn, Won Park, Keunchil Park, Chung Hwan Baek, Young Ik Son, Jeong Eun Lee, Young Je Park, Hee Rim Nam, Kyoung Ju Kim, Do Hoon Lim, Seung Jae Huh; Cancer Res Treat. 2003;35(5):391-399. Published online October 31, 2003; DOI: https://doi.org/10.4143/crt.2003.35.5.391

Abstract PDF: PURPOSE
Here, our results from a prospective treatment protocol of concurrent radiochemotherapy (CRCT), which was conducted for locally advanced nasopharynx cancers, between April 1994 and May 2001, are reported. MATERIALS AND METHODS: A total of 52 consecutive eligible patients were accumulated for this protocol. The median radiation doses to the primary site, involved nodes and uninvolved neck were 72, 61.2 and 45 Gy, using a serial shrinking field technique. The boost techniques were 3-dimensional conformal radiation therapy in 45, intracavitary brachytherapy in 3 and 2-dimensional radiation therapy, with multiple small fields, in 2 patients. Two chemotherapy regimens were used: the first regimen, used in 8 patients during the earlier part of the study duration, consisted of 2 cycles of cisplatin plus 5- fluorouracil every 4 weeks, with concurrent radiation therapy, and 4 cycles with the same agents every 4 weeks, adjuvantly; the second regimen, used in 44 patients during the later part, consisted of 3 cycles of cisplatin every 3 weeks, with concurrent radiation therapy and 3 cycles of adjuvant cisplatin plus 5-fluorouracil every 3 weeks. RESULTS: The median follow-up period of the survivors was 32 months. The male to female ratio was 36/16, with a median age of 48 years. The stages, according to the new AJCC staging system (1997), were IIb in 6, III in 23, IVa in 14 and IVb in 9 patients. Fifty and 32 patients completed the planned radiation therapy and concurrent chemotherapy, respectively. Two patients died, 1 of septic shock during the CRCT and the other of malnutrition during the adjuvant chemotherapy. There were 12 failures in 11 patients: 7 locoregional recurrences, 1 within and 6 outside the radiation target volume, and 5 distant metastases. The locoregional control, disease-free survival and overall survival rates were 84.3, 78.8 and 92.8% at 3 years, respectively. CONCLUSION: High dose radiation therapy, coupled with concurrent chemotherapy, was judged a highly effective treatment for locally advanced nasopharynx cancers.

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