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Features of Childhood Acute Myeloid Leukemia in Iran: a Report from Double Center Study
Azim Mehrvar1, Mohammad Saeid Rahiminejad2, Amir Abbas Hedayati Asl3
1Department of Pediatric Hematology Oncology, MAHAK s' Pediatric Cancer Treatment and Research Center, Army University of Medical Science, Tehran, Iran.
Insights
This study on childhood Acute Myeloblastic Leukemia (AML) found common features and molecular abnormalities. Survival rates were lower compared to developing countries, highlighting a need for improved interventions.
Area of Science:
- Pediatric Oncology
- Hematologic Malignancies
- Childhood Cancers
Background:
- Acute Myeloblastic Leukemia (AML) is a significant childhood malignancy.
- Understanding common features is crucial for improving pediatric AML prognosis.
- Limited data exists on epidemiological characteristics and survival outcomes in specific pediatric populations.
Purpose of the Study:
- To evaluate common epidemiological features of childhood Acute Myeloblastic Leukemia.
- To identify prevalent subtypes and molecular abnormalities in pediatric AML patients.
- To assess survival rates and relapse patterns in children diagnosed with AML.
Main Methods:
- Retrospective analysis of 104 pediatric patients (<15 years) diagnosed with AML between 2007-2011.
- Data collection included basic epidemiological information.
- Statistical analysis performed using SPSS version 22.
Main Results:
- The study included 54.8% males with a male/female ratio of 1.2 and a mean age of 6.5 years.
- Common subtypes were M3, M4, non-M3, and M2; frequent molecular abnormalities included t(15;17) and inv(16).
- A 3-year overall survival rate of 42% was observed, with 19.2% experiencing early relapse.
Conclusions:
- Childhood AML shares frequency with developing countries but exhibits lower survival rates.
- Findings underscore the need for enhanced preventive strategies, resource allocation, and updated treatment modalities.
- Data can inform public health policies and support programs for pediatric AML patients and families.
Abstract:
Acute Myeloblastic Leukemia is one of the important malignancies in children. For better managing the prognosis of this disease, there should be enough information about common features of this malignancy. The aim of this study was to evaluate these common features in children with Acute Myeloblastic Leukemia. A total of 104 eligible children less than 15-year-old have been referred from 2007-2011 to two referral centers for childhood malignancies. Basic epidemiological information recorded in checklists for each individual. Analyzes have been done by SPSS version 22. Out of patients, 57 cases were males (54.8%). The male/female ratio was 1.2. The mean age of patients was 6.5 ± 4.3 years. The majority subtypes of patients were M3, M4, non-M3, and M2, respectively. The common molecular abnormalities were t (15;17) and inv (16). Of patients, 19.2% had an early relapse. The mean age of relapse in patients was 6.7 ± 3.9 years. Sixty patients (57.7%) were alive, and 44 cases (42.3%) died during or after therapy. The three years overall survival rate of patients was 42% in this study. According to our data, AML has the same frequency as compared with data from developing countries. But different epidemiological characteristic was a lower rate of three years overall survival in patients. These data may serve the health authorities for more effective environmental and preventive measurements, purposeful allocation of resources for facilitating up-to-date diagnostic and treatment modalities, psychological support programs for respective family members and educational purposes.
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