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1.
Rev. senol. patol. mamar. (Ed. impr.) ; 36(1): 1-8, ene.-mar. 2023. tab
Article in Spanish | IBECS | ID: ibc-215275

ABSTRACT

Introducción: el tratamiento conservador de la mama junto con la radioterapia es de elección en las pacientes con cáncer de mama precoz. Gracias a un mayor conocimiento de la radiobiología tumoral, la tendencia actual consiste en utilizar técnicas de irradiación parcial acelerada, entre las que destaca la radioterapia intraoperatoria (RIO). Métodos: estudio prospectivo multicéntrico dividido en 2 grupos comparativos con casos consecutivos de las pacientes a que han recibido una cirugía conservadora por cáncer de mama asociada o no a RIO. Se valora la relación de esta terapia con los valores de las proteínas involucradas en la respuesta biológica (IL6, IL8, CXCL10, IL1β y TNF- α) en muestras de suero preoperatorio y a las 24 h desde la cirugía, y de drenaje quirúrgico a las 6 y 24 h desde la cirugía. Resultados: se ha objetivado en las pacientes tratadas con RIO una disminución significativa de IL6 e IL8, así como un aumento de CXCL10 favorable para la lucha contra la progresión del tumor (p valor < 0,05). Las alteraciones del sistema inmunológico se manifiestan tanto en suero como en débito del drenaje quirúrgico a las 6 y 24 h desde la cirugía. Conclusiones: la RIO modifica la respuesta biológica en las pacientes con cáncer de mama. A pesar de que se deben desarrollar más líneas de investigación, la comprensión de los mecanismos de desarrollo del tumor, abre una nueva etapa en el desarrollo de tratamientos perioperatorios dirigidos a dianas concretas que compensen las consecuencias dañinas de la cirugía. (AU)


Introduction: Breast conserving surgery with radiotherapy is the treatment of choice in patients with early breast cancer. Due to a better understanding of tumour radiobiology, the current trend is to use accelerated partial irradiation techniques, among which intraoperative radiotherapy (RIO) stands out. Methods: Prospective multicentre study divided into two comparative groups with consecutive cases of patients who have undergone conservative surgery for breast cancer associated or not with RIO. The relation of this therapy with the values of proteins involved in the biological response (IL6, IL8, CXCL10, IL1β y TNF- α) is assessed in serum samples preoperative and 24 hours after surgery, and surgical drainage samples at 6 and 24 hours after surgery. Results: A significant decrease in IL6 and IL8, as well as an increase in CXCL10 favourable for the fight against tumour progression (p-value < 0.05) was observed in patients treated with RIO. Immune system alterations are manifested in both serum and surgical drainage debit at 6 and 24 hours after surgery. Conclusions: RIO modifies the biological response in breast cancer patients. Although more lines of research need to be developed, the understanding of the mechanisms of tumour development opens a new stage in the development of perioperative treatments directed at specific targets that compensate for the harmful consequences of surgery. (AU)


Subject(s)
Humans , Breast Neoplasms/radiotherapy , Breast Neoplasms/surgery , Prospective Studies , Radiobiology , Proteomics , Interleukins
2.
Cir Cir ; 89(S1): 87-92, 2021.
Article in English | MEDLINE | ID: mdl-34762637

ABSTRACT

INTRODUCTION: Intrabiliary growth of colorectal liver metastasis determines their capability of dissemination and relapse. CASE REPORT: 65-year-old woman underwent sigmoidectomy (2011) and left hepatectomy due to liver metastases affecting the bile tract (2014). In 2020 she developed a 2cm tumour in the union of both hepatic ducts. Cholangiocarcinoma was suspected so resection of the main bile duct, the caudate lobe and lymphadenectomy were performed. On immunohistochemical examination, colorectal liver metastasis was confirmed. CONCLUSIONS: Liver metastases should be considered as the most likely diagnosis when bile duct dilatation or intrabiliary growth is seen in patients with a history of colorectal cancer.


INTRODUCCIÓN: El crecimiento biliar de las metástasis hepáticas del cáncer colorrectal (CCR) puede influir en su diseminación y recidiva. CASO CLÍNICO: Mujer de 65 años con antecedente de CCR (2011) y hepatectomía izquierda (2014) por metástasis hepática con afectación de la vía biliar. En 2020 desarrolló una lesión de 2 cm en la unión de los conductos hepáticos. Sospechando un colangiocarcinoma, se resecaron la vía biliar principal y el lóbulo caudado, asociando linfadenectomía. El estudio inmunohistoquímico confirmó el origen intestinal. CONCLUSIONES: Una imagen de dilatación o crecimiento biliar en pacientes con antecedente de CCR debe orientar a una recidiva, aunque la imagen sugiera colangiocarcinoma.


Subject(s)
Bile Duct Neoplasms , Cholangiocarcinoma , Colorectal Neoplasms , Liver Neoplasms , Aged , Bile Duct Neoplasms/surgery , Bile Ducts, Intrahepatic , Female , Hepatectomy , Humans , Liver Neoplasms/surgery , Neoplasm Recurrence, Local
3.
Cir. Esp. (Ed. impr.) ; 97(9): 517-522, nov. 2019. tab, graf
Article in Spanish | IBECS | ID: ibc-187628

ABSTRACT

Introducción: Las técnicas de radioterapia asociadas a la cirugía conservadora del cáncer de mama precoz han evolucionado gracias a un mayor conocimiento de la radiobiología tumoral, destacando entre ellas la radioterapia intraoperatoria (RIO). Sin embargo, se han documentado complicaciones con dicha técnica, principalmente la fibrosis. El factor de crecimiento transformante beta (TGF-β) es una citocina relacionada con la fibrosis inducida después de la radiación que podría servir como marcador temprano del riesgo de desarrollo de la misma. Métodos: Estudio prospectivo multicéntrico de 60 pacientes a las que se les ha sometido a cirugía conservadora por cáncer de mama, asociada a RIO en 30 de ellas. Se evalúan los valores de TGF-β en muestras de suero preoperatorio y a las 24 h desde la cirugía, y de muestras de drenaje a las 6 y 24 h desde la cirugía. Resultados: Los valores de TGF-β objetivados en el suero y en el débito de drenaje a las 24 h desde la cirugía de las pacientes que recibieron RIO fueron significativamente mayores que los de aquellas que no la recibieron (p < 0,0001). De entre ellas, 8 pacientes presentaron valores superiores a 1.000 pg/ml. Estas diferencias entre los grupos no se modifican por el tipo de muestra utilizada, bien sea suero, bien débito de drenaje (p = 0,5881). Conclusiones: Aunque deben realizarse más estudios, valores elevados de TGF-β en las pacientes con cáncer de mama a las que se les realiza cirugía conservadora asociada a RIO pueden predecir el riesgo de fibrosis


Introduction: Radiotherapy techniques associated with breast-conserving surgery have evolved in early breast cancer thanks to a better knowledge of tumor radiobiology, highlighting intraoperative radiotherapy (IORT). However, complications have been documented with this procedure, mainly fibrosis. Transforming growth factor beta (TGF-β) is a cytokine with an active role in radiation-induced fibrosis, which could be used as an early biomarker for the development of fibrosis. Methods: Multicentric prospective analysis of 60 patients with breast cancer who underwent breast-conserving surgery, 30 of whom had received additional IORT. TGF-β values were evaluated in serum pre-surgery and in serum collected 24 h after surgery. In addition, we evaluated surgical wound fluids collected 6 h and 24 h following surgery. Results: Serum and surgical wound fluids TGF-β values collected over 24 h following surgery were significantly higher in patients who received additional IORT (P < .0001). Notably, 8 of these patients showed values above 1,000 pg/ml. There were no differences between the samples (serum or surgical wound fluids) (P = .5881). Conclusions: Although further investigation is needed, higher TGF-β values in IORT during breast-conserving surgery can be used as an early biomarker for the development of fibrosis


Subject(s)
Humans , Female , Middle Aged , Aged , Breast Neoplasms/surgery , Mastectomy, Segmental/methods , Radiotherapy/adverse effects , Transforming Growth Factor beta/blood , Abnormalities, Radiation-Induced/pathology , Breast/pathology , Fibrosis/epidemiology , Intraoperative Care/methods , Prospective Studies
4.
Cir Esp (Engl Ed) ; 97(9): 517-522, 2019 Nov.
Article in English, Spanish | MEDLINE | ID: mdl-31320114

ABSTRACT

INTRODUCTION: Radiotherapy techniques associated with breast-conserving surgery have evolved in early breast cancer thanks to a better knowledge of tumor radiobiology, highlighting intraoperative radiotherapy (IORT). However, complications have been documented with this procedure, mainly fibrosis. Transforming growth factor beta (TGF-ß) is a cytokine with an active role in radiation-induced fibrosis, which could be used as an early biomarker for the development of fibrosis. METHODS: Multicentric prospective analysis of 60 patients with breast cancer who underwent breast-conserving surgery, 30 of whom had received additional IORT. TGF-ß values were evaluated in serum pre-surgery and in serum collected 24h after surgery. In addition, we evaluated surgical wound fluids collected 6h and 24h following surgery. RESULTS: Serum and surgical wound fluids TGF-ß values collected over 24h following surgery were significantly higher in patients who received additional IORT (P<.0001). Notably, 8 of these patients showed values above 1,000pg/ml. There were no differences between the samples (serum or surgical wound fluids) (P=.5881). CONCLUSIONS: Although further investigation is needed, higher TGF-ß values in IORT during breast-conserving surgery can be used as an early biomarker for the development of fibrosis.


Subject(s)
Breast Neoplasms/surgery , Mastectomy, Segmental/methods , Radiotherapy/adverse effects , Transforming Growth Factor beta/blood , Abnormalities, Radiation-Induced/pathology , Aged , Breast/pathology , Female , Fibrosis/epidemiology , Humans , Intraoperative Care/methods , Middle Aged , Prospective Studies
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