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Oncología (Guayaquil) ; 30(2): 149-158, 31 de agosto del 2020.
Article in Spanish | LILACS | ID: biblio-1145226

ABSTRACT

Introducción: Los esquemas de quimioterapia en el tratamiento de cáncer de mama incluyen Antraciclinas con una efectividad de respuesta alta, sin embargo en algunos casos el potencial efecto terapéutico se ve limitado por la Cardiomiopatía Inducida por Antraciclinas (CIPA).El objetivo del estudio fue establecer la prevalencia longitudinal de esta entidad. Métodos:Este estudiolongitudinalfue realizado en el Instituto Oncológico Nacional "Dr.Juan Tanca Marengo" -SOLCA-Guayaquil. El período de exposición fue abril a diciembredel 2008,laobservación terminó enjunio 2020.Seincluyó mujeres con cáncer de mama, en tratamiento con antraciclinas, clasificadas por riesgo Cardiovascular de Framingham Bajo (A), moderado (B) y alto (C).Se midió lasalteraciones electrocardiográficas (AEKG) basales, a las 6 y 24 horas.Desarrollo de CIPA en seguimiento a 12 años.La muestra fue no probabilística tipo censo. Se utiliza estadística descriptivacon Intervalo de confianza para proporciones. Resultados: Ingresaron al estudio 50 casos son AEKG. El desarrollo de AEKG a 6 horas en 18/50 casos (36% IC95% 34.1-37.9%), estas AEKG persistieron hasta las 24 horas. Las AEKG se presentaron en un 18.5% en mujeres con Riesgo A, 52.4% enRiesgo B y 100%en Riesgo C. El desarrollo de CIPA a12 años fue de 3.6% (2.3-4.9%) en CIPA-Subaguda y de 7.1% (5.3-9.0%)en CIPA crónica. CIPA Subaguda+ crónica 10.7% (8.6-12.9%). Conclusiones: los eventos de cardiotoxicidad aguda fueron detectados por AEKG,en el seguimiento a largo plazo laCIPAsedesarrollóen un porcentaje un poco mayor a la literatura reportada.


Introduction:Chemotherapy regimens in the treatment of breast cancer include Anthracyclines with a high response effectiveness, however in some cases the potential therapeutic effect is limited by Anthracycline Induced Cardiomyopathy (CIPA). The objective of the study was to establish the longitudinal prevalence of this entity. Methods: This longitudinal, observational study was conducted at the National Oncological Institute "Dr. Juan Tanca Marengo "-SOLCA-Guayaquil. The exposure period was April to December 2008. The observation period ended on June 30, 2020. It included women> 18 years with breast cancer, treated with anthracyclines, classified by Framingham Cardiovascular Risk as Low Risk (A) , moderate risk (B) and high risk (C). Electrocardiographic abnormalities (AEKG) were measured at baseline, at 6 hours and at 24 hours and development of CIPA at 12-yearfollow-up. The sample was non-probabilistic, census type. Descriptive statistics with confidence interval for proportions are used. Results: Fifty cases entered the study are AEKG. The development of AEKG at 6 hours in 18/50 cases (36% 95% CI 34.1-37.9%),these AEKG persisted until 24 hours. AEKG were presented in 18.52% in women with Risk A, 52.38% in Risk B and 100% in Risk C. The development of CIPA at 12 years was 3.57% (2.27-4.87%) in CIPA-Subacute and 7.14 % (5.34-8.95% in chronic CIPA. Subacute + chronic CIPA 10.71% (8.55-12.88%). Conclusions: In this study it is concluded that acute cardiotoxicity events were detected by electrocardiographic changes and that in the long-term follow-up they were evident in a slightly higher percentage than that reported in the international literature.


Subject(s)
Humans , Stroke Volume , Anthracyclines , Cardiomyopathies , Breast Neoplasms , Doxorubicin , Electrocardiography
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