Introduction: Colorectal cancer is one of the most prevalent malignant neoplasms in Brazil and worldwide, with high morbidity and mortality, especially in advanced stages. Scientific literature highlights a direct relationship between dietary patterns and the risk, progression, and prognosis of colorectal cancer. Diets rich in fiber, fruits, and vegetables and low in processed meats are associated with a lower risk, while excessive intake of ultra-processed foods, saturated fats, and red meats is linked to higher incidence and worse clinical outcomes. Moreover, the nutritional status of oncology patients significantly influences treatment tolerance and clinical progression. This study aims to investigate indirect nutritional indicators in hospitalized patients with colorectal cancer using national public data. Objectives: To analyze the occurrence of nutritional indicators and their impact on clinical outcomes in hospitalized patients diagnosed with colorectal cancer in Brazil, from 2015 to 2022, based on data from DATASUS, SIVEP, and SIM. Methods: This is na epidemiological, observational, and retrospective study based on secondary data extracted from the public databases DATASUS (SIH/SUS), SIVEP, and SIM, covering the period from 2015 to 2022. All hospital admissions with a primary diagnosis of malignant neoplasm of the colon and rectum (ICD-10: C18, C19, C20) were included. Indirect nutritional indicators were considered as co-diagnoses of malnutrition (ICD-10: E40–E46), obesity (E66), abnormal weight loss (R63.4), and cachexia (R64). Data were stratified by region, sex, age group, length of hospital stay, and clinical outcome (discharge, death, or transfer). Mortality data from SIM were analyzed to assess the frequency of deaths with or without nutritional co-diagnoses. Descriptive analysis wasconducted using absolute and relative frequencies, and time trend analysis was performed using simple linear regression. Special focus was given to geographic disparities. Results: During the study period, 72,015 hospital admissions for colorectal cancer were recorded in Brazil. Of these, 21,082 (29.2%) had a co-diagnosis of malnutrition, 6,478 (9%) of obesity, 5,116 (7.1%) of abnormal weight loss, and 2,377 (3.3%) of cachexia. The Northeast region showed the highest prevalence of malnutrition (34.5%), while the Southeast region had the highest proportion of obesity (11.4%). The hospital mortality rate among patients with nutritional co-diagnoses was 33.6%, compared to 18.9% in those without such conditions. Patients with weight loss and cachexia had na average hospital stay 2.8 days longer than those without these conditions. SIM mortality records confirmed a higher lethality associated with malnutrition indicators, especially in elderly individuals with multiple comorbidities. Conclusion: The study revealed a high prevalence of unfavorable nutritional conditions among patients with colorectal cancer in Brazil, associated with worse clinical outcomes, including longer hospital stays and higher mortality rates. These findings highlight the importance of nutritional surveillance and early dietary intervention in oncologic care, particularly in more vulnerable regions. Public health policies should prioritize nutritional screening and the promotion of healthy eating patterns as integral components of oncology care.
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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