Cancer Research and Treatment

Original Article

Pediatric cancer

Clinical Characteristics and Treatment Outcomes of Childhood Acute Promyelocytic Leukemia in Korea: A Nationwide Multicenter Retrospective Study by Korean Pediatric Oncology Study Group: Kyung Mi Park, Keon Hee Yoo, Seong Koo Kim, Jae Wook Lee, Nack-Gyun Chung, Hee Young Ju, Hong Hoe Koo, Chuhl Joo Lyu, Seung Min Han, Jung Woo Han, Jung Yoon Choi, Kyung Taek Hong, Hyoung Jin Kang, Hee Young Shin, Ho Joon Im, Kyung-Nam Koh, Hyery Kim, Hoon Kook, Hee Jo Baek, Bo Ram Kim, Eu Jeen Yang, Jae Young Lim, Eun Sil Park, Eun Jin Choi, Sang Kyu Park, Jae Min Lee, Ye Jee Shim, Ji Yoon Kim, Ji Kyoung Park, Seom Gim Kong, Young Bae Choi, Bin Cho, Young Tak Lim; Cancer Res Treat. 2022;54(1):269-276. Published online April 20, 2021; DOI: https://doi.org/10.4143/crt.2021.313

Purpose
Acute promyelocytic leukemia (APL) is a rare disease in children and there are some different characteristics between children and adult. We aimed to evaluate incidence, clinical characteristics and treatment outcomes of pediatric APL in Korea.
Materials and Methods
Seventy-nine pediatric APL patients diagnosed from January 2009 to December 2016 in 16 tertiary medical centers in Korea were reviewed retrospectively.
Results
Of 801 acute myeloid leukemia children, 79 (9.9%) were diagnosed with APL. The median age at diagnosis was 10.6 years (range, 1.3 to 18.0). Male and female ratio was 1:0.93. Thirty patients (38.0%) had white blood cell (WBC) count greater than 10×10⁹/L at diagnosis. All patients received induction therapy consisting of all-trans retinoic acid and chemotherapy. Five patients (6.6%) died during induction chemotherapy and 66 patients (86.8%) achieved complete remission (CR) after induction chemotherapy. The causes of death were three intracranial hemorrhage, one cerebral infarction, and one sepsis. Five patients (7.1%) suffered a relapse during or after maintenance chemotherapy. The estimated 4-year event-free survival and overall survival (OS) rates were 82.1%±4.4%, 89.7%±5.1%, respectively. The 4-year OS was significantly higher in patients with initial WBC < 10×10⁹/L than in those with initial WBC ≥ 10×10⁹/L (p=0.020).
Conclusion
This study showed that the CR rates and survival outcomes in Korean pediatric APL patients were relatively good. The initial WBC count was the most important prognostic factor and most causes of death were related to serious bleeding in the early stage of treatment.

Citations

Citations to this article as recorded by

Management of Acute Promyelocytic Leukemia at Extremes of Age
Sabine Kayser, Shannon E. Conneely
Cancers.2023; 15(14): 3637. CrossRef
Current Challenges of Asian National Children's Cancer Study Groups on Behalf of Asian Pediatric Hematology and Oncology Group
Chi-kong Li, Purna Kurkure, Ramandeep Singh Arora, Bow Wen Chen, Kirill Kirgizov, Yasuhiro Okamoto, Panya Seksarn, Yongmin Tang, Keon Hee Yoo, Bharat Agarwal, Godfrey C.F. Chan, Rashmi Dalvi, Hiroki Hori, Muhammad Saghir Khan, Alice Yu, Akira Nakagawara
JCO Global Oncology.2023;[Epub] CrossRef
Childhood acute promyelocytic leukemia in a pediatric cancer referral center in Baghdad, Iraq. Improved results with ATRA extended consolidation
Anna Maria Testi, Mazin Faisal Al-Jadiry, Hasanein Habeeb Ghali, Samaher Abdulrazzaq Fadhil, Amir Fadhil Al-Darraji, Raghad Majid Al-Saeed, Ahmed Hatem Sabhan, Safaa A. Faraj Al-Badri, Wisan Majeed Abed, Najiha Ahmed Ameen, Ruaa Zaki Al-Tameemi, Arabiya I
Leukemia & Lymphoma.2022; 63(12): 2940. CrossRef
Death due to unsuspected acute myeloid leukaemia: an unusual forensic diagnosis
Lila Krebs-Drouot, Georgia Karpathiou, Virginie Scolan, Carolyne Bidat-Callet, Baptiste Boyer, Michel Péoc’h
Forensic Science, Medicine and Pathology.2022; 19(1): 60. CrossRef
Successful Treatment of Isolated Central Nervous System Relapse with Intrathecal Chemotherapy in an Adolescent with Acute Promyelocytic Leukemia
Haerim Song, Eun Sang Yi
Clinical Pediatric Hematology-Oncology.2022; 29(2): 70. CrossRef

8,029 View
231 Download
5 Web of Science
5 Crossref

First
Prev
Page of 1
Next
Last

Search