Browsing by Author "Martínez, Raúl"

Now showing 1 - 6 of 6
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    Alternativas reconstructivas post maxilectomía por enfermedad neoplásica
    (2014) Ricardo, Yáñez, M.; Loyola Bravo, Francisco Javier; Alcocer C. Diego; Cornejo F., Jorge; Valenzuela G., Maríana; Martínez, Raúl
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    Carcinoma papilar de tiroides en un niño con hipotiroidismo congénito dishormonogénico. Reporte de un caso
    (2016) Orellana, María José; Fulle, Angelo; Carrillo, Diego; Escobar, Lucía; Ebensperger Orrego, Alicia; Martínez, Raúl; Rumié Carmi, Hana K.
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    Obesity is associated with early recurrence on breast cancer patients that achieved pathological complete response to neoadjuvant chemotherapy
    (2022) Acevedo Claros, Francisco Nicolás; Walbaum García, Benjamín Vicente; Muñiz Muñoz, María Sabrina; Petric Guajardo, Militza Paulina; Martínez, Raúl; Guerra, Constanza; Navarro, Marisel; Córdova Delgado, Miguel; Pinto, Mauricio P.; Sánchez Rojel, César Giovanni
    Pathological complete response (pCR) after neoadjuvant chemotherapy (NCT) is associated with good long-term prognosis in breast cancer (BC) patients. However, some patients still recur and eventually die from this disease. For years, clinical stage at diagnosis has been consistently linked to recurrence and survival in the pCR setting. Herein, we aimed to identify other potential predictors of recurrence and survival in patients that achieved pCR. We performed a retrospective analysis of patients diagnosed between 2011 and 2020 in our center. We calculated overall survival (OS), invasive disease-free survival (IDFS), distant disease-free survival (DDFS), and BC-specific survival (BCSS). Among the 241 patients included into our study 36% were obese (Body Mass Index (BMI) > 29.9 kg/m2) and 47% were stage III. Multivariate analysis confirmed that obesity was a significant risk factor associated with early recurrence and poorer survival in these patients. In summary, obesity and clinical stage predict early recurrence and poorer survival in patients that achieved pCR after NCT. Pending further investigation and based on our findings we speculate that weight management could be beneficial for this subset of patients. To our knowledge, this is the first Latin American report linking obesity and recurrence within this setting.
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    Suboptimal use of ovarian function suppression in very young women with early breast cancer: a real-world data study
    (2024) Heredia Castro, Ana Manuela; Walbaum García, Benjamín Vicente; Vidal, María ; Itriago Giménez, Laura Morella; Camus Appuhn, Mauricio Gonzalo; Domínguez Covarrubias, Francisco José; Manzor, Manuel ; Martínez, Raúl ; Murature, Geraldine ; Muñiz Muñoz, María Sabrina; Navarro, Marisel ; Guerra, Constanza ; Merino Lara, Tomás Rodrigo; Medina Araya, Lidia Marjorie; Ibáñez Cáceres, Carolina; Ramírez Parada, Karol Lilia; Acevedo Claros, Francisco Nicolás; Sánchez Rojel, César Giovanni
    Purpose The incidence of breast cancer in young women (BCYW) has increased in recent decades. Malignant disease in this subset is characterized by its aggressiveness and poor prognosis. Ovarian function suppression (OFS) in these patients improves survival especially in hormone receptor-positive (HR +) cases. The Regan Composite Risk (RCR) is a prognostic tool to identify high-risk HR + BC candidates for OFS. Our study sought to characterize a Chilean cohort of early HR + BCYW assessing the use of OFS and its related prognosis and the utility of RCR in our patients.MethodsThis was a retrospective population cohort study that included ≤ 35-year-old early HR + /human epidermal growth factor receptor 2 -negative (HER2-) BC patients treated between 2001 and 2021. Analysis included clinical-pathological characteristics, treatment strategies, and survival. Also, we evaluated the association between RCR and survival.ResultsA total of 143 patients were included into our study, representing 2.9% of all early BC cases in our registry. Median age was 31 years old (range: 19–35). Most patients (93%) received endocrine therapy (ET). Of these, 18% received OFS. No survival differences were observed among treatment strategies. Median RCR score for patients treated with CT plus ET was significantly higher vs. ET alone (2.95 vs. 1.91; p = 0.0001). Conversely, patients treated with tamoxifen alone had significantly lower RCR scores vs. OFS (2.72 vs. 3.14; p = 0.04). Higher RCR scores were associated with poorer overall survival.ConclusionLess than 20% of very young women with early HR + /HER2-BC in our cohort received OFS, in most cases, this involved surgical oophorectomy. RCR score was higher in patients that underwent CT and OFS and was associated with survival, regardless of treatment. We confirm the RCR score as a valuable prognostic tool to identify high-risk BC patients who could benefit from OFS.
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    Tratamiento quirúrgico de los tumores de parótida: Experiencia de 10 años
    (2014) Yáñez M., Ricardo; Loyola Bravo, Francisco Javier; Maíz H., Cristóbal; Mariangel P., Pablo; Cornejo F., Jorge; Martínez, Raúl; Valenzuela G., Mariana
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    Tratamiento sistémico actual para cáncer de mama avanzado hormono-dependiente
    (2023) Walbaum, Benjamín; Rodríguez Gutiérrez, Javier Ignacio; Acevedo Claros, Francisco Nicolás; Camus Appuhn, Mauricio Gonzalo; Manzor, Manuel; Martínez, Raúl; Veglia, Paulina; Murature, Geraldine; Muñiz Muñoz, María Sabrina; Merino Lara, Tomas Rodrigo; Sánchez Rojel, César Giovanni
    El cáncer de mama es la primera causa de muerte en mujeres chilenas. La mayoría de estos tumores dependen del estímulo estrogénico, por tanto, la deprivación de estrógenos es una parte relevante de su tratamiento. La combinación de terapia endocrina con tratamientos dirigidos ha demostrado prolongar la sobrevida global de pacientes con cáncer de mama avanzado estrógeno dependiente versus la terapia antiestrogénica aislada. Nuevas opciones de manejo sistémico en base a inmunoconjugados y la descripción de nuevos grupos de cáncer de mama estrógeno dependientes con baja expresión del receptor del factor de crecimiento epidérmico humano tipo 2 (HER2-bajo), han abierto otras opciones para pacientes con resistencia endocrina. Junto a una descripción de la experiencia local, mostramos una revisión narrativa de las nuevas opciones de tratamiento sistémico del cáncer de mama avanzado estrógeno dependiente.