Characteristics of gastrointestinal stromal tumors associated to other tumors / Características de los tumores del estroma gastrointestinal asociados a otras neoplasias

Introduction: Our aim is to analyze the differences between sporadic gastrointestinal stromal tumors and those associated with other tumors. Methods: Retrospective cohort study including patients with diagnosis of gastrointestinal stromal tumors operated at our center. Patients were divided into two groups, according to whether or not they had associated other tumors, both synchronously and metachronously. Disease free survival and overall survival were calculated for both groups. Results: 96 patients were included, 60 (62.5%) were male, with a median age of 66.8 years (35–84). An association with other tumors was found in 33 cases (34.3%); 12 were synchronous (36.3%) and 21 metachronous (63.7%). The presence of mutations in associated tumors was 70% and in non-associated tumors 75%. Associated tumors were classified as low risk tumors based on Fletcher's stratification scale (p=0.001) as they usually were smaller in size and had less than ≤5 mitosis per 50 HPF compared to non-associated tumors. When analyzing overall survival, there were statistically significant differences (p=0.035) between both groups. Conclusion: The relatively high proportion of gastrointestinal stromal tumors cases with associated tumors suggests the need to carry out a study to rule out presence of a second neoplasm and a long-term follow-up should be carried out in order to diagnose a possible second neoplasm. Gastrointestinal stromal tumors associated with other tumors have usually low risk of recurrence with a good long-term prognosis.(AU)

Introducción: El objetivo de este estudio es analizar si existen diferencias entre los GIST esporádicos y los que se presentan asociados a otros tumores. Métodos: Estudio de cohorte retrospectivo de pacientes operados de tumores del estroma gastrointestinal (GIST) en nuestro centro. Se dividió a los pacientes en función de si presentaban otros tumores asociados o no, de forma sincrónica o metacrónica. La supervivencia libre de enfermedad y la supervivencia global se calcularon en ambos grupos. Resultados: Se incluyeron un total de 96 pacientes, 60 (62,5%) eran hombres con una media de edad de 66,8 años (35-84). Se encontró una asociación con otros tumores en 33 casos (34,3%); 12 de manera sincrónica (36,3%) y 21 metacrónica (63,7%). La presencia de mutaciones en el grupo de tumores asociados fue de 70% y en el de no asociados de 75%. Los tumores asociados se clasificaron como tumores de bajo riesgo según la escala de Fletcher (p = 0,001), ya que fueron de menor tamaño y presentaron menos de ≤ 5 mitosis por 50 HPF en comparación con los no asociados. Al analizar la supervivencia global, hubo diferencias estadísticamente significativas entre ambos grupos (p = 0,035). Conclusión: La proporción relativamente alta de casos de GIST con tumores asociados sugiere la necesidad de realizar un estudio para descartar la presencia de una segunda neoplasia y, tras el tratamiento de GIST, elaborar un seguimiento a largo plazo para diagnosticar una posible segunda neoplasia. Los GIST asociados a otros tumores suelen tener un riesgo bajo de recurrencia con un buen pronóstico a largo plazo.(AU)

Operative outcomes and middle-term survival of robotic-assisted lung resection for clinical stage IA lung cancer compared with video-assisted thoracoscopic surgery / Resultados postoperatorios y de supervivencia a medio plazo de las resecciones pulmonares asistidas por robot en el cáncer de pulmón en estadio clínico IA en comparación con la cirugía toracoscópica videoasistida

Background: Despite limited published evidence, robotic-assisted thoracoscopic surgery (RATS) for anatomic lung resection in early-stage lung cancer continues growing. The aim of this study is to evaluate its safety and oncologic efficacy compared to video-assisted thoracoscopic surgery (VATS). Methods: Single-centre retrospective study of all patients with resected clinical stage IA NSCLC who underwent RATS or VATS anatomic lung resection from June 2018 to January 2022. RATS and VATS cases were matched by propensity scoring (PSM) according to age, sex, histology, and type of resection. Short-term outcomes were compared, and the Kaplan-Meier method and log-rank test were used to evaluate the overall survival (OS) and disease-free survival (DFS). Results: 321 patients (94 RATS and 227 VATS cases) were included. After PSM, 94 VATS and 94 RATS cases were compared. Demographics, pulmonary function, and comorbidity were similar in both groups. Overall postoperative morbidity was comparable for RATS and VATS cases (20.2% vs 25.5%, P = 0.385, respectively). Pathological nodal upstaging was similar in both groups (10.6% in RATS and 12.8% in VATS). During the 3.5-year follow-up period (median: 29 months; IQR: 18–39), recurrence rate was 6.4% in RATS group and 18.1% in the VATS group (P = 0.014). OS and DFS were similar in RATS and VATS groups (log rank P = 0.848 and P = 0.117, respectively). Conclusion: RATS can be performed safely in patients with early-stage NSCLC. For clinical stage IA disease, robotic anatomic lung resection offers better oncologic outcomes in terms of recurrence, although there are no differences in OS and DFS compared with VATS.(AU)

Introducción: A pesar de la limitada evidencia disponible, el uso de la RATS en resecciones pulmonares anatómicas por cáncer continúa creciendo. El objetivo de este estudio es evaluar su seguridad y eficacia oncológica en comparación con la VATS. Métodos: Estudio retrospectivo unicéntrico en el que se incluyeron todos los pacientes con CPNM en estadio cIA sometidos a resección pulmonar anatómica RATS o VATS entre junio de 2018 y enero de 2022. Los casos se emparejaron mediante puntuación de propensión (PSM) según edad, sexo, histología y tipo de resección. Se compararon los resultados a corto plazo y la supervivencia global (OS) y libre de enfermedad (DFS) mediante el método de Kaplan-Meier y la prueba de rangos logarítmicos. Resultados: Se incluyeron 321 pacientes (94 RATS y 227 VATS). Tras el PSM, se compararon 94 VATS y 94 RATS. La morbilidad global fue comparable en ambos grupos (20.2 % en RATS vs 25.5 % en VATS, P = 0.385). El upstaging ganglionar fue similar en ambos abordajes (10.6% en RATS y 12.8% en VATS). Durante los 3.5 años de seguimiento, la tasa de recurrencia fue del 6.4 % en RATS y del 18.1 % en VATS (P = 0.014). OS y DFS fueron similares en los dos grupos (rango logarítmico P = 0.848 y P = 0.117, respectivamente). Conclusión: La RATS se puede realizar de forma segura en pacientes con CPNM en estadio inicial. Para la enfermedad en estadio cIA, el abordaje robótico ofrece mejores resultados en términos de recurrencia, aunque no hay diferencias en la OS y la DFS en comparación con la VATS.(AU)

Operative outcomes and middle-term survival of robotic-assisted lung resection for clinical stage IA lung cancer compared with video-assisted thoracoscopic surgery.

BACKGROUND: Despite limited published evidence, robotic-assisted thoracoscopic surgery (RATS) for anatomic lung resection in early-stage lung cancer continues growing. The aim of this study is to evaluate its safety and oncologic efficacy compared to video-assisted thoracoscopic surgery (VATS). METHODS: Single-centre retrospective study of all patients with resected clinical stage IA NSCLC who underwent RATS or VATS anatomic lung resection from June 2018 to January 2022. RATS and VATS cases were matched by propensity scoring (PSM) according to age, sex, histology, and type of resection. Short-term outcomes were compared, and the Kaplan-Meier method and log-rank test were used to evaluate the overall survival (OS) and disease-free survival (DFS). RESULTS: 321 patients (94 RATS and 227 VATS cases) were included. After PSM, 94 VATS and 94 RATS cases were compared. Demographics, pulmonary function, and comorbidity were similar in both groups. Overall postoperative morbidity was comparable for RATS and VATS cases (20.2% vs 25.5%, P = 0.385, respectively). Pathological nodal upstaging was similar in both groups (10.6% in RATS and 12.8% in VATS). During the 3.5-year follow-up period (median: 29 months; IQR: 18-39), recurrence rate was 6.4% in RATS group and 18.1% in the VATS group (P = 0.014). OS and DFS were similar in RATS and VATS groups (log rank P = 0.848 and P = 0.117, respectively). CONCLUSION: RATS can be performed safely in patients with early-stage NSCLC. For clinical stage IA disease, robotic anatomic lung resection offers better oncologic outcomes in terms of recurrence, although there are no differences in OS and DFS compared with VATS.

Abemaciclib as adjuvant treatment for high-risk early breast cancer. / [Artículo traducido] Abemaciclib en adyuvancia para el tratamiento del cáncer de mama precoz de alto riesgo.

OBJECTIVE: To adapt the GHEMA report of abemaciclib, an inhibitor of cyclin-dependent kinases 4 and 6. European Medicines Agency authorisation (April 2022) includes, in combination with endocrine therapy, the adjuvant treatment of adult patients with hormone receptor positive, human epidermal growth factor receptor 2 negative, node-positive, early breast cancer at high risk of recurrence. METHOD: The efficacy and safety of abemaciclib were evaluated in a randomized, open-label and multicenter phase III study. A total of 5,637 patients diagnosed with early breast cancer with hormone receptor positive, human epidermal growth factor receptor 2 negative, node positive and high risk of recurrence were included. High risk was defined as patients with 4 or more positive axillary lymph nodes, or 1-3positive axillary lymph nodes and at least one of the following: tumor size ≥5 cm, histologic grade 3 or Ki-67 ≥ 20%. Patients were randomized (1:1) to receive adjuvant abemaciclib + endocrine therapy (n = 2,808) or endocrine therapy alone (n = 2,829) for 2 years, with endocrine therapy prescribed for at least 5 years. RESULTS: With a median follow-up of 15.5 months, abemaciclib + endocrine therapy demonstrated a statistically significant improvement in invasive disease-free survival versus endocrine therapy alone (HR = 0.747 [95% CI 0.598-0.932], p = 0.0096); achieving an absolute improvement of 3.5% invasive disease-free survival rate at 2-years. These results were maintained, with a median follow-up of 27.7 months: absolute improvement of 2.7% and 5.4% in invasive disease-free survival rate at 2 and 3-years, respectively. All-causality grade 3 or 4 adverse events were 45.9% for abemaciclib and 12.9% for endocrine therapy, and included neutropenia (19.6% vs. 0.8%), leukopenia (11.4% vs. 0.4%) and diarrhea (7.8% vs. 0.2%). CONCLUSIONS: The results of the pivotal trial are sufficient to consider abemaciclib as adjuvant treatment for high-risk early breast cancer in highly selected patients. However, in order to the efficacy results present less uncertainty, we must wait for a evaluation later, in which we can have a mature determination at 3 years (with more patients at risk).

Characteristics of gastrointestinal stromal tumors associated to other tumors: Características de los tumores del estroma gastrointestinal asociados a otras neoplasias.

INTRODUCTION: Our aim is to analyze the differences between sporadic gastrointestinal stromal tumors and those associated with other tumors. METHODS: Retrospective cohort study including patients with diagnosis of gastrointestinal stromal tumors operated at our center. Patients were divided into two groups, according to whether or not they had associated other tumors, both synchronously and metachronously. Disease free survival and overall survival were calculated for both groups. RESULTS: 96 patients were included, 60 (62.5%) were male, with a median age of 66.8 (35-84). An association with other tumors was found in 33 cases (34.3%); 12 were synchronous (36.3%) and 21 metachronous (63.7%). The presence of mutations in associated tumors was 70% and in non-associated tumors 75%. Associated tumors were classified as low risk tumors based on Fletcher's stratification scale (p = 0.001) as they usually were smaller in size and had less than ≤5 mitosis per 50 HPF compared to non-associated tumors. When analyzing overall survival, there were statistically significant differences (p = 0,035) between both groups. CONCLUSION: The relatively high proportion of gastrointestinal stromal tumors cases with associated tumors suggests the need to carry out a study to rule out presence of a second neoplasm and a long-term follow-up should be carried out in order to diagnose a possible second neoplasm. Gastrointestinal stromal tumors associated with other tumors have usually low risk of recurrence with a good long-term prognosis.

Características y resultados oncológicos del carcinoma epidermoide de ano: análisis comparativo entre los pacientes inmunocompetentes y los inmunodeprimidos / Characteristics and oncological results of epidermoid anal carcinoma: Comparison analysis between immunocompetent and immunosuppressed patients

Objetivos: La mayoría de los ensayos clínicos realizados sobre pacientes con cáncer escamoso anal (CEA) excluyen pacientes inmunodeprimidos. El objetivo del presente estudio es comparar las características y los resultados oncológicos entre pacientes con CEA inmunocomprometidos e inmunocompetentes. Métodos: Estudio multicéntrico comparativo retrospectivo que incluye 2 cohortes consecutivas de pacientes, inmunocomprometidos e inmunocompetentes, diagnosticados de carcinoma escamoso anal. Se han investigado las características de los pacientes, los tratamientos realizados, la respuesta clínica al tratamiento con quimiorradioterapia (QRT), la recidiva local o a distancia, la supervivencia global (SG) y la supervivencia libre de enfermedad (SLE). Resultados: De enero 2012 a diciembre 2017 hemos estudiado a 84 pacientes, 47 (55,6%) mujeres, afectos de CEA, de los cuales 22 (26%) han sido pacientes inmunocomprometidos y 62 (74%) inmunocompetentes. Los pacientes inmunocomprometidos fueron más jóvenes (53 vs. 61 años; p=0,001), con un menor tamaño tumoral (p=0,044), y presentaban un mayor consumo de tabaco (p=0,034) y de drogas de uso parenteral (p=0,001). No se objetivaron diferencias significativas en los tratamientos administrados (p=0,301), tampoco difirió la respuesta clínica a la QRT (83 vs. 100%). Tampoco se observaron diferencias significativas en la supervivencia global (60 vs. 64%; p=0,756) o en la supervivencia libre de enfermedad a 5 años (SLE) (65 vs. 68%; p=0,338). Conclusiones: En el presente estudio no se observaron diferencias significativas en relación con los resultados oncológicos a largo plazo entre pacientes inmunocompetentes e inmunocomprometidos diagnosticados de CEA, con un grado de cumplimiento del tratamiento similar. Esta evidencia podría deberse al estrecho seguimiento y buen control terapéutico de pacientes infectados por HIV. (AU)

Objective: Most evidence, including recent randomized controlled trials, analysing anal squamous cell carcinoma (SCC) do not consider immunocompromise patient population. The aim of this study was to compare clinical and oncological outcomes among immunocompetent and immunocompromised patients with anal squamous cell carcinoma. Method: Multicentric retrospective comparative study including 2 cohorts of consecutive patients, immunocompetent and immunocompromised, diagnosed with anal SCC. This study evaluated clinical characteristics, clinical response to radical chemoradiotherapy (CRT) and long-term oncological results including both local and distant recurrence, overall survival (OS) and disease-free survival (DFS). Results: A total of 84 patients, 47 (55.6%) female, diagnosed with anal SCC from January 2012 to December 2017 were included, 22 (26%) and 62 (74%) patients in immunocompromised and immunocompetent groups respectively. Patients in immunocompromised group were significantly younger (53 vs. 61 years; P=0.001), with smaller tumoral size (P=0.044) and reported higher rates of substance abuse.including tobacco use (P=0.034) and parenteral drug consumption (P=0.001). No differences were found in administered therapies (P=301) neither in clinical response to chemoradiotherapy (83 vs. 100%). Moreover, similar 5-year OS (60 vs. 64%; P=0.756) and DFS (65 vs. 68%; P=0.338) were observed. Conclusion: The present study shows no significant differences in long-term oncological results among immunocompetent and immunocompromised patients diagnosed with anal SCC, with a similar oncologic treatment. This evidence might be explained due to the close monitoring and adequate therapeutic control of HIV positive patients. (AU)

Characteristics and oncological results of epidermoid anal carcinoma: Comparison analysis between immunocompetent and immunosuppressed patients.

OBJECTIVE: Most evidence, including recent randomized controlled trials, analysing anal squamous cell carcinoma (SCC) do not consider immunocompromise patient population. The aim of this study was to compare clinical and oncological outcomes among immunocompetent and immunocompromised patients with anal squamous cell carcinoma. METHOD: Multicentric retrospective comparative study including 2 cohorts of consecutive patients, immunocompetent and immunocompromised, diagnosed with anal SCC. This study evaluated clinical characteristics, clinical response to radical chemoradiotherapy (CRT) and long-term oncological results including both local and distant recurrence, overall survival (OS) and disease-free survival (DFS). RESULTS: A total of 84 patients, 47 (55.6%) female, diagnosed with anal SCC from January 2012 to December 2017 were included, 22 (26%) and 62 (74%) patients in immunocompromised and immunocompetent groups respectively. Patients in immunocompromised group were significantly younger (53 vs. 61 years; P = 0.001), with smaller tumoral size (P = 0.044) and reported higher rates of substance abuse including tobacco use (P = 0.034) and parenteral drug consumption (P = 0.001). No differences were found in administered therapies (P = 301) neither in clinical response to chemoradiotherapy (83 vs. 100%). Moreover, similar 5-year OS (60 vs. 64%; P = 0.756) and DFS (65 vs. 68%; P = 0.338) were observed. CONCLUSION: The present study shows no significant differences in long-term oncological results among immunocompetent and immunocompromised patients diagnosed with anal SCC, with a similar oncologic treatment. This evidence might be explained due to the close monitoring and adequate therapeutic control of HIV positive patients.

Characteristics and oncological results of epidermoid anal carcinoma: Comparison analysis between immunocompetent and immunosuppressed patients. / Características y resultados oncológicos del carcinoma epidermoide de ano: análisis comparativo entre los pacientes inmunocompetentes y los inmunodeprimidos.

OBJECTIVE: Most evidence, including recent randomized controlled trials, analysing anal squamous cell carcinoma (SCC) do not consider immunocompromise patient population. The aim of this study was to compare clinical and oncological outcomes among immunocompetent and immunocompromised patients with anal squamous cell carcinoma. METHOD: Multicentric retrospective comparative study including 2 cohorts of consecutive patients, immunocompetent and immunocompromised, diagnosed with anal SCC. This study evaluated clinical characteristics, clinical response to radical chemoradiotherapy (CRT) and long-term oncological results including both local and distant recurrence, overall survival (OS) and disease-free survival (DFS). RESULTS: A total of 84 patients, 47 (55.6%) female, diagnosed with anal SCC from January 2012 to December 2017 were included, 22 (26%) and 62 (74%) patients in immunocompromised and immunocompetent groups respectively. Patients in immunocompromised group were significantly younger (53 vs. 61 years; P=0.001), with smaller tumoral size (P=0.044) and reported higher rates of substance abuse. including tobacco use (P=0.034) and parenteral drug consumption (P=0.001). No differences were found in administered therapies (P=301) neither in clinical response to chemoradiotherapy (83 vs. 100%). Moreover, similar 5-year OS (60 vs. 64%; P=0.756) and DFS (65 vs. 68%; P=0.338) were observed. CONCLUSION: The present study shows no significant differences in long-term oncological results among immunocompetent and immunocompromised patients diagnosed with anal SCC, with a similar oncologic treatment. This evidence might be explained due to the close monitoring and adequate therapeutic control of HIV positive patients.

Actualidades terapéuticas en la leucemia linfoide crónica / Therapeutic news in chronic lymphoid leukemia

Introducción: La leucemia linfoide crónica es una neoplasia linfoproliferativa crónica caracterizada por el aumento de una población clonal linfoide disfuncional con inmunofenotipo B (> 95 por ciento) y excepcionalmente T (< 5 por ciento) que afecta sobre todo a personas mayores de 55 años de edad y se incrementa su frecuencia hacia la séptima década de vida. Objetivo: Analizar las principales modalidades terapéuticas para el manejo de la leucemia linfoide crónica. Métodos: Se realizó una revisión de la literatura, en inglés y español, a través del sitio web PubMed y el motor de búsqueda Google académico de artículos publicados en los últimos 5 años. Se hizo un análisis y resumen de la bibliografía revisada. Análisis y síntesis de la información: La leucemia linfoide crónica se consideró durante décadas una enfermedad del paciente añoso, en general de curso indolente, con una evolución impredecible e incurable. El tratamiento de esta enfermedad en los últimos 30 años ha sufrido cambios muy significativos que han repercutido favorablemente en el incremento de la supervivencia global y libre de enfermedad de los pacientes que la padecen. Conclusión: Se debe mantener un adecuado seguimiento de los pacientes con leucemia linfoide crónica, pues esto permitirá disminuir en lo posible las complicaciones, la progresión y un aumento de la supervivencia global(AU)

Introduction: Chronic lymphoid leukemia is a chronic lymphoproliferative neoplasm characterized by the increase of a dysfunctional lymphoid clonal population with immunophenotype B (> 95 percent) and exceptionally T (<5 percent), it mainly affects people over 55 years of age, increasing towards the seventh decade of life. Objective: To analyze the main therapeutic modalities for the management of chronic lymphoid leukemia. Methods: A literature review was carried out, in English and Spanish, through the PubMed website and the academic search engine Google for articles published in the last 5 years. An analysis and summary of the revised bibliography was made. Analysis and synthesis of the information: Chronic lymphoid leukemia was considered for decades a disease of the elderly patient, generally of an indolent course, unpredictable and incurable evolution. The treatment of this disease has undergone in the last 30 years very significant changes that have had a favorable impact on the increase in the overall and disease-free survival of patients who suffer from it. Conclusion: Adequate follow-up of patients with chronic lymphoid leukemia must be maintained, as this will make it possible to reduce complications, progression and increase overall survival as much as possible(AU)

Análisis del comportamiento clínico-patológico del cáncer de mama mucinoso: primer estudio multicéntrico en México. Revisión a 10 años / Analysis of the clinical-pathological behaviour of mucinous carcinoma of the breast: First multicentre study in Mexico-review at 10 years

Introducción El carcinoma mucinoso de mama es una histología poco frecuente, al que se le ha atribuido buen pronóstico, sin embargo, hay pocos datos sobre su comportamiento en población mexicana. Material y métodos Estudio retrospectivo, descriptivo y observacional de tres centros oncológicos de referencia en México, se analizaron características clínicas e histopatológicas de pacientes con carcinoma mucinoso de mama en el periodo comprendido de 2007 a 2017. Resultados Se diagnosticaron 152 pacientes con carcinoma mucinoso puro de mama. Mediana de edad de 56 años. Se encontró asociación entre el tamaño tumoral (p = 0,002) y la afección ganglionar (p < 0,001) con la supervivencia global. Para supervivencia libre de enfermedad, se identificó como factor asociado la afección ganglionar y el inmunofenotipo; con una media de supervivencia libre de enfermedad (SLE) de 143,5 meses para luminal A, 115,4 meses para luminal B, 81 meses para triple negativo y 16 meses para Her 2, p < 0,001. Conclusiones La afección ganglionar es un factor de riesgo para recurrencia de cáncer de mama mucinoso. El tamaño tumoral y una mayor afección ganglionar se relacionaron con un pronóstico adverso en la supervivencia global. (AU)

Introduction Mucinous carcinoma of the breast is an infrequent histological type. Prognosis is believed to be good but there are few data on its behaviour in the Mexican population. Material and methods Retrospective, descriptive, observational study performed in 3 oncological referral centres in Mexico. We analysed the clinical and histopathological characteristics of patients with mucinous carcinoma of the breast between 2007 and 2017. Results A total of 152 patients were diagnosed with pure mucinous breast carcinoma. The median age was 56 years. An association was found between tumoural size (p = 0.002) and lymph node involvement (p < 0.001) with overall survival. The factors associated with disease-free survival were lymph node involvement and immunophenotype. Mean disease-free survival was 143.5 months for luminal A, 115.4 months for luminal B, 81 months for triple negative and 16 months for Her 2, p < 0.001. Conclusions Lymph node involvement is a risk factor for recurrence of mucinous carcinoma of the breast. Tumoural size and greater lymph node involvement are related to worse overall survival. (AU)

Tratamiento de tumores malignos epiteliales de ovario en estadios avanzados. Experiencia del Hospital Italiano de Buenos Aires / Treatment of advanced epithelial ovarian tumor. Hospital Italiano de Buenos Aires experience

Resumen El cáncer de ovario ocupa el tercer lugar en frecuencia entre los cánceres ginecológicos en Argentina. Existe un déficit de información de esta enfermedad en nuestro país respecto al tratamiento y evolución oncológica de las pacientes. El objetivo de nuestro trabajo fue evaluar los resultados perioperatorios y oncológicos, en pacientes con tumor epitelial de ovario con estadios avanzados. Presentamos una cohorte retrospectiva en la que se evaluó la supervivencia libre de enfermedad y la supervivencia global en pacientes con tumores epiteliales de ovario tratadas en el Hospital Italiano de Buenos Aires entre junio del 2009 a junio del 2017. De 170 pacientes incluidas en el estudio, 72 (42.4%) fueron tratadas con una cirugía de citorreducción primaria (CCP), mientras que 98 (57.6%) recibieron neoadyuvancia y luego cirugía del intervalo (CI). La tasa de citorreducción óptima fue de 75% y de 79% respectivamente. No se encontraron diferencias en los resultados perioperatorios, ni en las complicaciones graves entre ambos grupos. La mediana de SLE en el grupo de CCP fue de 2.5 años (IC 95% 1.6-3.1) mientras que en el grupo de CI fue de 1.4 (IC 95% 1.2-1.7) p < 0.001. La mediana de supervivencia global fue de 5.8 años en CCP, y de 3.5 años en CI. En pacientes adecuadamente seleccionadas la CCP presenta mejores resultados oncológicos a la neoadyuvancia y CI. La selección correcta de las pacientes para tratamiento primario es fundamental para definir la conducta terapéutica.

Abstract Ovarian cancer represents the third gynecological cancer in frequency in Argentina. There is a lack of information on this pathology in our country regarding the treatment and evolution of patients who suffer it. The aim of this study was to evaluate the perioperative and oncological results in patients with advanced epithelial ovarian tumor. We present a retrospective cohort in which we evaluated disease-free survival and overall survival in patients with epithelial ovarian tumor treated at the Hospital Italiano de Buenos Aires between June 2009 and June 2017. Of 170 patients included in the study, 72 (42.4%) received primary debulking surgery (CCP), while 98 (57.6%) received neoadjuvant therapy and interval surgery (CI). The optimal cyto-reduction rate was 75% and 79% respectively. No differences were found in perioperative outcomes, or in severe complications between the two groups. The median disease-free survival in the CCP group was 2.5 years (95% CI 1.6-3.1) while in the CI group it was 1.4 (95% CI 1.2-1.7) p < 0.001. The median overall survival was 5.8 years in CPP, and 3.5 years in CI. Faced with a meticulous selection by a group of experts, patients with advanced ovarian cancer treated with CCP present better oncological results than those who received neoadjuvant therapy and CI.

The association of the neutrophil-lymphocyte ratio with the presence of minimal residual disease and outcome in patients with Stage II colon cancer treated with surgery alone.

AIM: Despite curative surgery, 25% of patients with Stage II colorectal cancer will relapse due to minimal residual disease (MRD). Markers of immune function, such as the neutrophil to lymphocyte ratio (NLR), may be associated with MRD defined by bone marrow micro-metastasis (mM) and circulating tumour cells (CTCs). METHOD: A prospective cohort study of consecutive patients with Stage II colon cancer patients attended at a single centre between 2007 and 2014. Blood and bone marrow samples were taken to detect CTCs and mM using immunocytochemistry with anti-carcinoembryonic antigen 1 month after surgery. The NLR and absolute neutrophil and lymphocyte counts were determined immediately pre-surgery and 1 month post-surgery. These were compared with the sub-types of MRD: group I MRD(-); group II mM positive and group III CTC positive. Cut-off values of the NLR of >3.0 and >5.0 were used. Follow-up was for up to 5 years or relapse and disease-free survival (DFS) was calculated using Kaplan-Meier analysis. RESULTS: In all, 181 patients (99 women) participated. Mean age was 68 years. Median follow-up was 4.04 years: I, N = 105; II, N = 36; III, N = 40. The NLR significantly decreased post-surgery only in group I patients. The frequency of NLR >3.0 and >5.0 was significantly higher in group III; between groups I and II there was no significant difference. 5-year DFS was 98% in group I, 68% in group II and 7% in group III. CONCLUSIONS: Patients with a significantly higher immune dysfunction had a shorter time to disease progression, a worse DFS and the presence of CTCs.

OBJETIVO: En los primeros 5 años tras cirugía curativa para cáncer de colon en estadio II, el 25% de los pacientes tendrá una recidiva tumoral a causa de la presencia de enfermedad mínima residual (EMR). La hipótesis del presente estudio es que los marcadores de la función inmune, como la ratio neutrófilos- linfocitos (RNL), están asociados con el subtipo de EMR, clasificado por la presencia de micro-metástasis de médula ósea (mM) o células tumorales circulantes (CTCs) y con los resultados oncológicos. MÉTODOS Y PACIENTES: Se trata de un estudio prospectivo, observacional, monocéntrico que incluye una serie consecutiva de pacientes con cáncer del colon en estadio II tratados con cirugía curativa entre 2007 y 2014. Se tomaron muestras de sangre y médula ósea para detectar CTCs y mM mediante inmuno-citoquímica con anticuerpos anti-CEA un mes después de la cirugía. El numero de neutrófilos y linfocitos y el RNL se determinaron antes y un mes después de la cirugía y sus valores se compararon entre los diferentes grupos de EMR: grupo I, sin evidencia de EMR; Grupo II con mM positivo; Grupo III con CTCs positivo. El seguimiento oncológico fue de hasta 5 años y se calcularon las curvas de sobrevivencia libre de enfermedad (SLE) utilizando las curvas de Kaplan-Meier. RESULTADOS: se incluyeron en el presente estudio 181 pacientes (99 mujeres), con una edad media de 68 años y una mediana de seguimiento de 4,04 años; de acuerdo con la presencia de EMR se clasificaron los pacientes en Grupo I (n=105), Grupo II (n=36) y Grupo III (n=40). El RNL disminuyó significativamente después de la cirugía solo en el Grupo I. El porcentaje de pacientes con RNL> 3,0 y > 5,0 fue significativamente mayor en el Grupo III, sin diferencias significativas entre los Grupos I y II. La SLE a 5 años fue del 98% en el Grupo I, 68% en el Grupo II y 7% en el Grupo III. CONCLUSIONES: Los pacientes con una peor disfunción inmunológica presentan una recidiva mas precoz, una peor SLE y la presencia de células tumorales circulantes.

Tratamiento quirúrgico del cáncer de cuello uterino en estadio temprano: revisión de la bibliografía / Surgical treatment or early stage cervical cáncer: a literatura review

Resumen ANTECEDENTES: La vía de acceso quirúrgico para el tratamiento de pacientes con cáncer de cuello uterino en estadio temprano ha demostrado, durante muchos años, los mismos desenlaces que la vía abierta y la mínimamente invasiva, aunque con menores complicaciones teóricas con esta última. OBJETIVO: Describir la evidencia actual acerca de la vía de acceso óptima para el tratamiento quirúrgico de las pacientes con cáncer de cuello uterino en estadio temprano. METODOLOGÍA: Estudio retrospectivo efectuado mediante una revisión bibliográfica en las bases de datos de Pubmed, EMBASE, Web of Science y CINAHL, en febrero del 2021, de artículos publicados entre el 2017 y el 2021. Se utilizaron las palabras clave (MeSH): early cervical cancer, minimally invasive surgery, Open Radical Hysterectomy, intra-uterine manipulator. Se excluyeron los artículos publicados en otros idiomas diferentes al inglés. RESULTADOS: De lo revisado se plantea la hipótesis de que la cirugía abierta permite mayor tracción anterior del útero que, de esta manera, facilita una resección más amplia de los ligamentos úterosacros y los parametrios. CONCLUSIONES: La vía de acceso mínimamente invasiva ha tenido peores desenlaces en términos de supervivencia libre de enfermedad y global, en comparación con la vía abierta. Se propone reconsiderar la vía de acceso abierta como patrón de referencia del tratamiento quirúrgico para pacientes con cáncer de cuello uterino en estadio temprano.

Abstract BACKGROUND: The surgical approach to early stage cervical cancer has been shown for many years to have the same results between the open and minimally invasive routes, with fewer theoretical complications in the latter. OBJECTIVE: To provide a description of the current evidence on the optimal approach for the surgical treatment of early stage cervical cancer. METHODOLOGY: A bibliographic search was carried out through Pubmed, EMBASE, Web of Science and CINAHL between 2017 and 2021. RESULTS: From what has been reviewed, it is hypothesized that open surgery allows greater anterior traction of the uterus, thus facilitating a wider resection of the uterosacral ligaments and parametria. CONCLUSIONS: The minimally invasive approach route has been shown to have worse results in terms of disease-free survival and overall survival, compared to the open route. The open approach should be reconsidered as the gold standard for patients with early-stage cervical cancer.

Long Non-Coding RNA NANCI/NKX2-1 Duplex Impacts Prognosis in Stage I Non-Small-Cell Lung Cancer.

BACKGROUND: NANCI, an intergenic long non-coding RNA (lncRNA) is essential for buffering NKX2-1 expression during embryonic development and in adult tissue. We analyzed NANCI and NKX2-1 in human lung embryonic samples and adult lung tissues and evaluated their potential as prognostic markers in stage I non-small cell lung cancer (NSCLC). METHODS AND RESULTS: NANCI and NKX2-1 expression was assessed by TaqMan assays in 18 human embryonic samples from 8 to 13 weeks, 59 non-tumoral (NT) lung tissue samples, and 98 stage I NSCLC tumor samples. NANCI and NKX2-1 expression in embryonic and NSCLC samples were downregulated in comparison to adult NT tissue. Patients with low expression of NANCI had shorter disease-free survival (DFS) and overall survival (OS) than those with high levels (47.6 vs 69.3 months, P=0.032 and 57.7 vs 77.6 months, P=0.021, respectively). When the expression levels of NANCI and NKX2-1 were evaluated in combination, four groups were identified (high NANCI/high NKX2-1, low NANCI/high NKX2-1, high NANCI/low NKX2-1 and low NANCI/low NKX2-1) with differential impact on DFS (P=0.042) and OS (P=0.024). Interestingly, the high NANCI/high NKX2-1 duplex group had longer DFS and OS than the other three groups (71.25 vs 46.3 months, P=0.009 and 81.3 vs 56.1 months, P=0.004, respectively). In the multivariate analysis, the high NANCI/high NKX2-1 duplex was identified as an independent prognostic factor for longer DFS (HR 0.346, 95% CI, 0.169-0.709; P=0.004) and OS (HR 0.309, 95% CI, 0.121-0.786; P=0.014). CONCLUSIONS: NANCI and the NANCI-NKX2-1 duplex impacts prognosis in stage I NSCLC patients.

Supervivencia de pacientes adultos con leucemia mieloide aguda no promielocítica tratados con altas dosis de antraciclinas / Survival of adult patients with non-promyelocytic acute myeloid leukemia treated with high doses of anthracyclines

Introducción: La leucemia mieloide aguda es una enfermedad heterogénea caracterizada por la expansión clonal de precursores indiferenciados que provoca un fallo medular. Objetivo: Analizar la supervivencia de los pacientes adultos con leucemia mieloide aguda no promielocítica tratados con altas dosis de antraciclinas en la inducción. Métodos: Se realizó un estudio analítico, retrospectivo y longitudinal en 53 pacientes adultos menores de 60 años, tratados en el Instituto de Hematología e Inmunología, desde septiembre de 2013 hasta diciembre de 2018. Estos pacientes tenían diagnóstico de leucemia mieloide aguda no promielocítica y recibieron altas dosis de antraciclinas (daunorribicina) en el tratamiento de inducción. Resultados: Las probabilidades de supervivencia global a los 12 meses fue mayor para el grupo de 19 a 29 años con 59 por ciento y más baja para el de 40 a 49 años con 21 por ciento. En cuanto a la probabilidad de supervivencia libre de evento fue de 65 por ciento. Esta resultó mayor para los pacientes de los grupos de 19 a 29 años y de 30 a 39 años con 39 por ciento y 40 por ciento, respectivamente. En el grupo de 40-49 años disminuyó hasta 20 por ciento. En relación con la supervivencia global relacionada con los genes reordenados fue mayor para los pacientes que tenían los genes NPM1 y AML1-ETO y menor para los que tenían los genes FLT3 y BCR/ABL. Conclusiones: Los grupos de edades y las alteraciones genéticas no modifican la supervivencia de los pacientes con leucemias mieloide aguda no promielocítica tratados con dosis altas de antraciclinas(AU)

Introduction: Acute myeloid leukemia is a heterogeneous disease characterized by the clonal expansion of undifferentiated precursors that causes bone marrow failure. Objective: To analyze the survival of adult patients with non-promyelocytic acute myeloid leukemia treated with high doses of induced anthracyclines at induction. Methods: An analytical, retrospective and longitudinal study was carried out with 53 adult patients younger than 60 years, treated at the Institute of Hematology and Immunology, from September 2013 to December 2018. These patients had a diagnosis of non-promyelocytic acute myeloid leukemia and received high doses of anthracyclines (daunoribicin) under induction therapy. Results: The probabilities of overall survival at 12 months were higher for the group of 19- 29 years, accounting for 59%, and lower for the group of 40-49 years, accounting for 21 percent. In the age group of 19-29 years, the probability of event-free survival was 65 percent and the probability of disease-free survival was 44 percent. In the group of 40-49 years, it decreased to 27 percent; while in the group of 50-59 it increased, reaching 80 percent. Regarding overall survival associated with the rearranged genes, it was higher for the patients who had the NPM1 and AML1-ETO genes and lower for those who had the FLT3 and BCR/ABL genes. Conclusions: Age groups and genetic alterations do not modify the survival of patients with non-promyelocytic acute myeloid leukemias treated with high doses of anthracyclines(AU)

Supervivencia a 5 años de pacientes con cáncer de mama: experiencia en una institución de Jalisco, México / Breast cancer survival at 5 years: Experience of an institution at Jalisco, México

Resumen: OBJETIVO: Determinar la supervivencia a 5 años (global y libre de enfermedad) posterior al tratamiento de pacientes con cáncer de mama atendidas en el Instituto Jalisciense de Cancerología. MATERIALES Y MÉTODOS: Estudio observacional, descriptivo, transversal y retrospectivo efectuado en pacientes con diagnóstico de cáncer de mama atendidas en el trascurso del año 2013 en la Clínica de Mama del Instituto Jalisciense de Cancerología, Guadalajara. La supervivencia global y libre de enfermedad a 5 años se estableció a partir del tiempo trascurrido desde el diagnóstico hasta la ocurrencia de recidiva, metástasis, muerte o fecha del último contacto, con límite a diciembre de 2018. RESULTADOS: Se revisaron 311 expedientes pero solo se analizaron 172. La edad promedio al diagnóstico fue de 51.4 años. La etapa más repetida fue la IIIA, determinada en 64 pacientes (37.2%), IIA en 38 pacientes (22.1%), IIB en 19 pacientes (11.0%), IA y IIIC cada una con 15 pacientes (8.7%). La probabilidad de supervivencia global a cinco años fue de 78.5%. El 24.4% tuvo recurrencia, con una media de supervivencia de 46.8 meses. Se demostró significación estadística entre la etapa, grado histológico, reporte inmunohistoquímico e invasión ganglionar y la supervivencia. CONCLUSIONES: Esta investigación representa un esfuerzo para lograr establecer la supervivencia a cinco años de nuestras pacientes. En la población estudiada, la supervivencia tuvo valores aceptables y equiparables con otros estudios nacionales e internacionales y refleja la buena práctica médica de nuestra institución.

Abstract: OBJECTIVE: To determine the 5-year survival (global and disease-free) after the treatment of patients with breast cancer at the Instituto Jalisciense de Cancerología. MATERIALS AND METHODS: Observational, descriptive cross-sectional, retrospective study of patients diagnosed with breast cancer treated during 2013 in the breast clinic service of the Instituto Jalisciense de Cancerología, Guadalajara. The five-year global and disease-free survival was established from the time elapsed from the diagnosis until the occurrence of an event (recurrence, metastasis or death) or date of last contact, with a limit to December 2018. RESULT: 311 files were reviewed, but only 172 were included for the analysis of overall survival and disease-free survival at five years. The average age at diagnosis was 51.4 years. The most repeated stage was IIIA, determined in 64 patients (37.4%), IIA in 38 patients (22.2%), IIB in 19 patients (11.1%), AI and IIIC each with 15 patients (8.8%). The probability of five-year global survival was 78.5%. 24.4% presented recurrence with an average survival of 46.8 months. Statistical significance was demonstrated between stage, histological grade, result of immunohistochemistry and lymph node invasion and survival. CONCLUSIONS: This research represents an effort to establish the five-year survival of our patients. In the population studied, survival had acceptable and comparable values with other national and international studies and reflects the good medical practice of our institution.

Respuesta patológica completa, cirugía conservadora y recidivas a distancia en tumores localmente avanzados: resultados en 30 años de tratamiento neoadyuvante / Complete Pathologic Response, Breast Conserving Surgery and Distant Recurrence in Locally Advanced Breast Cancer: Results within 30 years of Neoadjuvant Therapy

Introducción La quimioterapia neoadyuvante (qtn) es el tratamiento inicial para pacientes con tumores localmente avanzados, permitiendo la evaluación de la sensibilidad in vivo a los agentes antineoplásicos y la planificación de estrategias quirúrgicas con resultados cosméticos favorables. Objetivos Comparar la tasa de respuesta patológica completa (pcr), la tasa de conversión a cirugía conservadora (tccc), el tiempo a la recaída a distancia (trad) y la supervivencia libre de enfermedad a distancia (sled) a 60 meses en pacientes con cáncer de mama Estadio III que fueron tratadas con qtn antes y después del año 2007 Material y método Se trata de un estudio observacional de cohortes retrospectivo en el que se analizaron registros de pacientes con cáncer de mama Estadio III operadas entre 1987 y 2016 que hubieran realizado qtn . Se constituyeron dos cohortes: en la primera se reunieron pacientes tratadas entre 1987 y 2006; en la segunda se agruparon aquellas tratadas entre 2007 y 2016. Se estableció esta diferencia dado que a partir de 2007 hubo cambios en la modalidad terapéutica: se administró la quimioterapia en forma continua antes de la cirugía y se introdujeron los taxanos y la terapia anti-her2 neu en los esquemas de qtn . En total se registraron 202 pacientes, 146 pertenecientes a la primera cohorte y 56 pertenecientes a la segunda. La mediana de edad y el tamaño tumoral fueron similares entre ambos grupos, mientras que en el segundo grupo observamos mayor porcentaje de tumores Grado 3 y mayor carga tumoral axilar. Resultados La tasa de pcr fue del 2% (n=3) para el primer grupo y de 13% (n=7) para el segundo (p=0,0022). La tasa de conversión a cirugía conservadora fue del 27% (n=20) para el primer grupo y del 41% (n=17) para el segundo, observándose un 14% más de cirugías conservadoras en este último (p=0,11). La mediana de trad fue de 33 meses para el primer grupo y de 46,5 meses para el segundo (p=0,044). La sled a 60 meses fue del 58% vs el 74% para el primer y segundo grupo respectivamente (p=0,039). Conclusiones Los cambios en la modalidad terapéutica en qtn en nuestra práctica se tradujeron en mayores tasas de pcr, mayor porcentaje de conversión a cirugía conservadora, mayor tiempo a la recidiva a distancia y mayor supervivencia libre de enfermedad a distancia

Introduction Neoadjuvant chemotherapy is the standard of care for patients with locally advanced breast cancer, allowing surgical planning with favorable cosmetic outcome and evaluation of in vivo response to antineoplastic agents. Objectives To compare pathologic complete response, breast conserving surgery conversion rates, time to distant relapse and distant recurrence free survival after 60 months in patients with Stage III breast cancer who received neoadjuvant chemotherapy before and after year 2007. Materials and method Observational retrospective cohort study analizing database and medical records of patients with Stage III breast cancer who had surgery after neoadjuvant therapy between 1987 and 2016. We divided the population into two cohorts, one with patients treated between 1987 and 2006, and another one with those ones treated between 2007 and 2016. We established that difference given that from 2007 and onwards there were major changes in treatment modality: chemotherapy was administered completely before surgery, and Taxane-containing regimens as well as Anti-her2 therapies were included. We registered 202 patients, 146 in the first group and 56 in the second. While median of age and tumor size were similar between groups, axillary tumor burden and histologic grade were higher in the second group. Results Pathologic complete response rate was 2% for the first group and 13% for the second (p=0.0022). Breast conserving surgery conversion rates were 27% vs 41%, with 14% more breast conserving surgeries in the second cohort. Median time to distant recurrence was 33 months vs 46.5 months (p=0.044) and distant recurrence free survival was 58% vs 74% (p=0.039) for groups 1 and two 2 respectively. Conclusions Changes in treatment modality in our practice resulted in better pcr outcomes, more breast conserving surgery conversion rates, longer time to distant relapse and a better distant recurrence free survival

Comparison of clinical characteristics of patients with follicular thyroid carcinoma and Hürthle cell carcinoma. / Comparación de las características clínicas en pacientes con carcinoma folicular de tiroides y carcinoma de células de Hürthle.

INTRODUCTION: Hürthle cell carcinoma (HCC) is an uncommon thyroid cancer historically considered to be a variant of follicular thyroid carcinoma (FTC). The aim of this study was to assess the differences between these groups in terms of clinical factors and prognoses. PATIENTS AND METHODS: A total of 230 patients (153 with FTC and 77 with HCC) with a median follow-up of 13.4 years were studied. The different characteristics were compared using SPSS version 20 statistical software. RESULTS: Patients with HCC were older (57.3±13.8 years vs. 44.6±15.2 years; P<.001). More advanced TNM stages were also seen in patients with HCC and a greater trend to distant metastases were also seen in patients with HCC (7.8% vs. 2.7%, P=.078). The persistence/recurrence rate at the end of follow-up was higher in patients with HCC (13% vs. 3.9%, P=.011). However, in a multivariate analysis, only age (hazard ratio [HR] 1.10, confidence interval [CI] 1.04-1.17; P=.001), size (HR 1.43, CI 1.05-1.94; P=.021), and histological subtype (HR 9.79, CI 2.35-40.81; P=.002), but not presence of HCC, were significantly associated to prognosis. CONCLUSION: HCC is diagnosed in older patients and in more advanced stages as compared to FTC. However, when age, size, and histological subtype are similar, disease-free survival is also similar in both groups.

Sarcoma de mediastino. Serie de casos y revisión de la literatura. Departamento de Oncología Torácica. Instituto Nacional de Cancerología. INCan / Mediastinal sarcoma. Literature review and a series of cases. Department of Thoracic Oncology. National Institute of Cancerology. INCan

Resumen El sarcoma de mediastino es un raro tumor que representa menos del 10% de los tumores del mediastino y alrededor del 1-2% de todas las neoplasias malignas en general. Debe abordarse en centros de referencia, donde se evalué multidisciplinariamente y se tengan opciones de manejo multimodal, infraestructura que permita la resección y reconstrucción quirúrgica mayor y estricto seguimiento, teniendo en cuenta la alta recurrencia local, cercana al 30%. Exponemos una serie de casos presentados a lo largo de 20 años de experiencia con la participación de varios departamentos, ajustándonos a la definición y manejo con la literatura actual.

Abstract Mediastinum sarcoma is a rare tumor that represents less than 10% of mediastinal tumors and about 1-2% of all malignancies in general. It should be approached in reference centers with multidisciplinary evaluation and multimodal management options, with an infrastructure that allows surgical resection and reconstruction and strict follow-up, taking into account the high local recurrence that is close to 30%. Therefore, we present a series of cases in 20 years of experience with the participation of several departments and adjusting the definition and management with the current literature.

Glycolytic activity in breast cancer using 18F-FDG PET/CT as prognostic predictor: A molecular phenotype approach.

AIM: To explore the relationship between basal (18)F-FDG uptake in breast tumors and survival in patients with breast cancer (BC) using a molecular phenotype approach. MATERIAL AND METHODS: This prospective and multicentre study included 193 women diagnosed with BC. All patients underwent an (18)F-FDG PET/CT prior to treatment. Maximum standardized uptake value (SUVmax) in tumor (T), lymph nodes (N), and the N/T index was obtained in all the cases. Metabolic stage was established. As regards biological prognostic parameters, tumors were classified into molecular sub-types and risk categories. Overall survival (OS) and disease free survival (DFS) were obtained. An analysis was performed on the relationship between semi-quantitative metabolic parameters with molecular phenotypes and risk categories. The effect of molecular sub-type and risk categories in prognosis was analyzed using Kaplan-Meier and univariate and multivariate tests. RESULTS: Statistical differences were found in both SUVT and SUVN, according to the molecular sub-types and risk classifications, with higher semi-quantitative values in more biologically aggressive tumors. No statistical differences were observed with respect to the N/T index. Kaplan-Meier analysis revealed that risk categories were significantly related to DFS and OS. In the multivariate analysis, metabolic stage and risk phenotype showed a significant association with DFS. CONCLUSION: High-risk phenotype category showed a worst prognosis with respect to the other categories with higher SUVmax in primary tumor and lymph nodes.