RESUMEN
BACKGROUND: Anthracycline-induced cardiotoxicity is a frequent complication that can occur at any stage of treatment, even in survivors. OBJECTIVE: To determine maximum aerobic power, quality of life, and left ventricular ejection fraction in childhood cancer survivors treated with anthracyclines. DESIGN: Cross-sectional, observational study. METHODS: The left ventricular ejection fraction was obtained from the transthoracic echocardiogram report in the medical records. Each patient underwent a 6-minute walk test, assessment of maximum aerobic power on a cycle ergometer, and evaluation of perceived exertion using the EPInfant scale, and finally, their quality of life was evaluated using the pediatric quality of life inventory model. RESULTS: A total of 12 patients were studied, with an average of 16.2 years of age. All patients exhibited a left ventricular ejection fraction >60%, the mean distance covered in the 6-minute walk test was 516.7 m, and the mean of the maximum aerobic power was 70 W. Low quality of life scores were obtained in the physical and psychosocial aspects. In the Pearson test, a weak correlation without statistical significance was found between all the variables studied. CONCLUSIONS: Simultaneously with the detection of cardiotoxicity in childhood cancer survivors, it is pertinent to perform physical evaluations as physical condition and cardiotoxicity seem to be issues that are not necessarily dependent.
RESUMEN
El LF es una enfermedad heterogénea con muchos diferentes subgrupos, en términos de edad de inicio, órganos involucrados (especialmente sitios extranodales) y anormalidades genéticas. Con grandes variaciones en el curso clínico, algunas veces muy indolente o no; puede mostrar transformación a linfomas de alto grado, se han reportado transformaciones a Linfoma de Células Grandes B Difusas (siendo este el más común), de Burkitt, Leucemia/Linfoma, Linfoma Linfoblástico (reportado en raras ocasiones), con un curso clínico agresivo. En el 2008 la OMS estableció 3 nuevas variantes: 1) LF Pediátrico, 2) LF Primario Intestinal y 3) LF in situ. Patólogos y clínicos debemos considerar estas patologías cuando se decide el diagnóstico y el tratamiento. La transformación histológica se refiere al evento biológico que lleva al desarrollo de un Linfoma No Hodgkin agresivo de alto grado en pacientes con un LF subyacente. El Linfoma Folicular (LF) pediátrico es una neoplasia excesivamente rara, que difiere del LF del adulto.
FL is a heterogeneous disease with many different subgroups, in terms of age of onset, organs involved (especially extranodal sites) and genetic abnormalities. With great variations in the clinical course, sometimes very indolent or not; can show transformation to high-grade lymphomas, transformations to Diffuse Large B Cell Lymphoma (this being the most common), Burkitt's, Leukemia / Lymphoma, Lymphoblastic. Lymphoma (reported rarely), with an aggressive clinical course have been reported. In 2008 the WHO established 3 new variants: 1) Pediatric FL, 2) Intestinal Primary FL and 3) in situ FL. Pathologists and clinicians must consider these pathologies when deciding on diagnosis and treatment. Histological transformation refers to the biological event that leads to the development of high-grade aggressive Non-Hodgkin's Lymphoma in patients with an underlying FL. Pediatric Follicular Lymphoma (FL) is an excessively rare neoplasm, which differs from adult FL.
