Introduction: Leukemia is a malignant neoplasm originating from hematopoietic tissue and is the main oncological problem in the pediatric population, with a notable predominance in children in the first decade of life. Although current therapeutic advances provide high survival rates, the clinical outcome remains strongly dependent on early diagnosis and comprehensive access to therapeutic resources. In Brazil, significant regional socioeconomic disparities significantly influence the patterns of pediatric hospitalization for leukemia, which highlights the relevance of epidemiological investigations for the development of strategies in the context of pediatric oncological care. Objectives: This study aims to analyze the hospitalization profile for leukemia in children up to 14 years of age in Northern Brazil, from January 2020 to December 2024, and to evaluate the trend and proportional distribution of cases. It also seeks to highlight the financial cost of these hospitalizations in the same period. Methods: An ecological, descriptive, and retrospective study was conducted on hospitalizations for leukemia in children up to 14 years of age in the Northern Region of Brazil between 2020 and 2024, using data extracted from the Hospital Information System of the Unified Health System (SIH/DATASUS). The variables analyzed included federative unit, year, age group, sex, color/race, type of care and total hospitalization costs.The data were measured using R software version 4.3.1, with descriptive statistics and trend analysis. Hospitalization rates were normalized per 100,000 inhabitants in each age group. Potential confounding factors, such as access to health services and population distribution, were considered in the interpretation of the statistical distributions. Results: Between 2020 and 2024, 8,265 hospitalizations for leukemia were recorded among children in the North region. Pará was the federative unit that presented the highest number of cases, with 4,774 hospitalizations (57.76%), while Amapá had the lowest number, with 2 cases (0.02%). 2024 was the year with the highest number of hospitalizations, with 1,904 cases, while 2020 had the lowest number, with 1,176 hospitalizations. The most affected age group was 5 to 9 years old (38.47%). Most cases occurred among boys (57.36%) and predominated among brown children (85.22%). The average amount spent on these hospitalizations was R$1,508.30, with most of the care classified as urgent (59.37%). Conclusion: There was a significant concentration of hospitalizations of brown children, with a greater predominance in the age group of 5 to 9 years. In addition, Pará received a specific share of the total number of hospitalizations due to the condition in the period applied, mainly in the year 2024. This demonstrates an important regional trend that allows the design of health strategies aimed at this issue. Moreover, the observed increase in hospitalizations over time, coupled with the high financial expenditures, highlights the urgency of investing in preventive measures, early diagnosis, and regional equity in access to care. Epidemiological studies such as this are essential to guide the redirection of public health spending and improve outcomes in pediatric oncology.
It is with great enthusiasm that we present the Annals of the Oncology International Symposium 2025, an event that continues to solidify its significance in the oncology landscape of northern Brazil. Held in Belém, Pará, Oncology 2025 centered around the theme "The cancer control challenge: better knowing it to best facing it," dedicating itself to exploring the latest frontiers in cancer treatment and prevention.
This year, the symposium provided a deep dive into the essential role of knowledge in the fight against cancer, presenting new perspectives and scientific advancements across various areas of oncology. Renowned global experts gathered to share their most recent research and innovative approaches, offering participants a comprehensive view of the challenges faced by healthcare professionals and patients worldwide.
Presentations and discussions during the event focused on critical topics such as the use of new technologies, advancements in personalized therapies, and more effective prevention strategies. Additionally, particular attention was given to the unique challenges faced by the Amazon region, with efforts aimed at developing region-specific solutions to meet local needs.
Beyond being a high-caliber academic event, Oncology 2025 stood out as a moment for integration and professional networking, with the warm hospitality of the city of Belém offering participants a unique experience. This event became a platform for exchanging ideas, where science, culture, and humanity came together in pursuit of a common goal: to improve cancer control both in Brazil and globally.
This collection of abstracts and articles presented during the event reflects the ongoing dedication to research and the development of innovative solutions, highlighting the importance of collaboration and shared knowledge in the fight against cancer.
General Submission Guidelines:
The presenting author, who does not have to be the first author, must be registered for Oncology 2025.
Each abstract may have up to 10 authors, including the main author and co-authors.
Only original, unpublished work will be accepted.
Submissions must be related to oncology. However, project descriptions, work proposals, experience reports, and literature reviews will not be considered.
Clinical case reports are allowed, provided the abstract addresses scientific questions, details clinical observations, and includes primary scientific data.
The abstract must be written in English, but presentations may be given in Portuguese.
Abstracts must be between 300 and 500 words.
Comissão Organizadora
Comissão Científica
See Annals of Oncology 2023 at:
https://www.even3.com.br/anais/oncology-2023-international-symposium/
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