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2.
Rev. argent. cir ; 115(4): 309-309, dic. 2023.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1559245
5.
Rev. argent. cir ; 114(4): 299-306, oct. 2022. graf
Article in Spanish | LILACS, BINACIS | ID: biblio-1422942

ABSTRACT

RESUMEN Antecedentes: la biopsia del ganglio centinela (GC) es la técnica aceptada para determinar el pronóstico en estadios iniciales de melanoma cutáneo. La ventaja del vaciamiento ganglionar (VG) cuando el GC resulta positivo ha sido recientemente cuestionada. Objetivo: describir los porcentajes y factores asociados a metástasis en el GC, y en los ganglios no centinela (GnC) en los VG de pacientes con GC positivo. Material y métodos: se llevó a cabo un estudio retrospectivo de los registros clínicos y patológicos de 139 pacientes operados por melanoma cutáneo entre enero de 2012 y diciembre de 2019. Resultados: a 96 (69%) pacientes se les realizó biopsia de GC. El promedio de edad fue 61,7 años ± 17,5 (19-93); 53 (55,2%) fueron hombres. La lesión primaria estuvo ubicada en: extremidades 47 (49%), tronco 39 (40,6%), cabeza y cuello 10 (10,4%). El promedio de espesor de Breslow fue 5,01 mm (1,05- 50 mm) y se encontró ulceración en 35 casos (36,4%). El GC fue identificado en todas las oportunidades y en 39 (40,6%) fue positivo. Hubo asociación con el espesor ≥ 3 mm (p = 0,000017) y con la ulceración (p = 0,0011). A los pacientes con GC positivo se les efectuó el VG del territorio afectado: 23 axilar, 10 inguinal y 6 cervical. Veintitrés (59%) presentaron metástasis en GnC. Se asoció con el espesor (p = 0,022) y la ulceración (p = 0,019). Conclusión: existió un alto porcentaje de GnC positivos en la población estudiada, vinculado al espesor y la ulceración. Estas características, así como la dificultad de un estricto seguimiento, inducen a no abandonar el VG en pacientes con GC positivo.


ABSTRACT Background: Sentinel lymph node (SLN) biopsy is the technique accepted to determine the prognosis of early cutaneous melanomas. The advantage of lymph node dissection (LND) when SLN biopsy is positive has recently been questioned. Objective: The aim of this study is to describe the percentages and factors associated with SLN and non-sentinel node (NSN) metastases in LNDs of SLN-positive patients. Material and methods: The clinical records and pathology reports of 139 patients undergoing surgery for cutaneous melanoma between January 2012 and December 2019 were retrospectively reviewed. Results: Ninety-six (69%) patients underwent SLN biopsy. Mean age was 61.7 ± 17.5 years (19-93) and 53 (55.2%) were men. The primary lesion was located in the extremities in 47 (49%) cases, in the trunk in 39 (40.6%), and in the head and neck in 10 (10.4%). Mean Breslow thickness was 5.01 mm (1.05-50 mm) and ulceration was found in 35 cases (36.4%). The SLN was identified in all the cases and was positive in 39 (40.6%). There was an association with thickness ≥ 3 mm (p = 0.000017) and ulceration (p = 0.0011). Those patients with positive SLN biopsy underwent LND of the territory involved: axillary in 23, inguinal in 10 and cervical in 6. Twenty-three (59%) presented NSLN metastases and were associated with thickness (p = 0.022) and ulceration (p = 0.019). Conclusion: There was a high percentage of positive NSLN in the population studied which was associated with thickness and ulceration. These characteristics and the difficulty to achieve strict follow-up are the reasons for completion LND in SLN-positive patients.


Subject(s)
Humans , Animals , Male , Adult , Middle Aged , Aged , Aged, 80 and over , Young Adult , Sentinel Lymph Node/surgery , Melanoma/diagnosis , Epidemiology, Descriptive , Retrospective Studies , Sentinel Lymph Node Biopsy , Sentinel Lymph Node Biopsy/statistics & numerical data , Sentinel Lymph Node/pathology , Lymph Node Excision , Neoplasm Metastasis
6.
Medicina (B Aires) ; 81(4): 611-616, 2021.
Article in Spanish | MEDLINE | ID: mdl-34453804

ABSTRACT

To evaluate the usefulness of intraoperative pathology (IP) in thyroid surgery, a retrospective review of its results in 350 patients was performed in comparison with the results of the preoperative fine-needle biopsy (FNB) and the surgical pathology report (SPR). The FNB was reported according to the Bethesda system as type II in 91 cases (26.0%), type III in 21 (6.0%), type IV in 73 (21.9%), type V in 54 (15.4%), and type VI in 111 (31.7%). The IP showed benign lesions in 137 cases (39.1%), malignancy in 169 (48.2%), and inconclusive results in 44 (12.6%). The SPR results were benign pathology in 161 cases (46%) and carcinoma in 189 (54%); carcinoma was found in 8 patients (5.8%) in whom the IP had reported benignity, and in 12 (27.2%) with IP inconclusive results; 13 of those 20 cases were incidental microcarcinomas. The IP did not report any false positive result (specificity 100 %, sensitivity 89.4%, positive predictive value 100%, negative predictive value 90.0%, and accuracy 94.2%). When discriminated by Bethesda types, the malignant lesions detected by IP and SPR were, respectively: II 3 (3.3%) and 7 (7.70%); III 8 (38.1%) and 10 (47.6%); IV 3 (4.1%) and 10 (13.7%); V 47 (87.0%) and 52 (96.3%); VI 108 (97.3%) and 110 (99.1%). In most cases, the IP did not provide additional information to the FNB report nor did it detect microcarcinomas in others, so it does not seem justified to perform it routinely.


Para evaluar la utilidad diagnóstica del estudio patológico intraoperatorio (EPI) en cirugía tiroidea se realizó una revisión retrospectiva de sus resultados en 350 pacientes en comparación con la biopsia preoperatoria por punción con aguja fina (PAAF) y el estudio patológico diferido (EPD). Los resultados de la PAAF se clasificaron según el sistema de Bethesda en categoría II (91 casos, 26.0%), III (21 casos, 6.0%), IV (73 casos, 21.9%), V (54 casos, 15.4%) y VI (111 casos, 31.7%). El EPI mostró lesiones benignas en 137 casos (39.1%), malignas en 169 (48.2%), y resultados no definitivos en 44 (12.6 %). El EPD informó patología benigna en 161 casos (46%) y carcinoma en 189 (54%); se encontró carcinoma en 8 pacientes (5.8%) en quienes el EPI había informado lesión benigna y en 12 (27.2%) en quienes había informado no definitivo; 13 de estos 20 casos fueron microcarcinomas incidentales. El EPI no informó ningún falso positivo (especificidad 100%, sensibilidad 89.4%, valor predictivo positivo 100%, valor predictivo negativo 90.0%, exactitud 94.2%). Los resultados de malignidad con EPI y EPD, según categorías de Bethesda fueron respectivamente: II 3 (3.3%) y 7 (7.7%); III 8 (38.1%) y 10 (47.6%); IV 3 (4.1%) y 10 (13.7%); V 47 (87.0%) y 52 (96.3%); VI 108 (97.3%) y 110 (99.1%). El EPI no dio información adicional a la biopsia por PAAF en la mayoría de los casos ni detectó microcarcinomas en otros, por lo que no parece justificado indicarlo rutinariamente.


Subject(s)
Carcinoma , Thyroid Neoplasms , Thyroid Nodule , Biopsy, Fine-Needle , Humans , Retrospective Studies , Sensitivity and Specificity , Thyroid Neoplasms/diagnosis , Thyroid Neoplasms/surgery , Thyroid Nodule/surgery
7.
Medicina (B.Aires) ; 81(4): 611-616, ago. 2021. graf
Article in Spanish | LILACS | ID: biblio-1346514

ABSTRACT

Resumen Para evaluar la utilidad diagnóstica del estudio patológico intraoperatorio (EPI) en cirugía tiroidea se realizó una revisión retrospectiva de sus resultados en 350 pacientes en comparación con la biopsia preoperatoria por punción con aguja fina (PAAF) y el est udio patológico diferido (EPD). Los resultados de la PAAF se clasificaron según el sistema de Bethesda en categoría II (91 casos, 26.0%), III (21 casos, 6.0%), IV (73 casos, 21.9%), V (54 casos, 15.4%) y VI (111 casos, 31.7%). El EPI mostró lesiones benignas en 137 casos (39.1%), malignas en 169 (48.2%), y resultados no definitivos en 44 (12.6 %). El EPD informó patología benigna en 161 casos (46%) y carcinoma en 189 (54%); se encontró carcinoma en 8 pacientes (5.8%) en quienes el EPI había informado lesión benigna y en 12 (27.2%) en quienes había informado no definitivo; 13 de estos 20 casos fueron microcarcinomas incidentales. El EPI no informó ningún falso positivo (especificidad 100%, sensibilidad 89.4%, valor predictivo positivo 100%, valor predictivo negativo 90.0%, exactitud 94.2%). Los resultados de malignidad con EPI y EPD, según categorías de Bethesda fueron respectivamente: II 3 (3.3%) y 7 (7.7%); III 8 (38.1%) y 10 (47.6%); IV 3 (4.1%) y 10 (13.7%); V 47 (87.0%) y 52 (96.3%); VI 108 (97.3%) y 110 (99.1%). El EPI no dio información adicional a la biopsia por PAAF en la mayoría de los casos ni detectó microcarcinomas en otros, por lo que no parece justificado indicarlo rutinariamente.


Abstract To evaluate the usefulness of intraoperative pathology (IP) in thyroid surgery, a retrospective review of its results in 350 patients was performed in comparison with the results of the preoperative fine-needle biopsy (FNB) and the surgical pathology report (SPR). The FNB was reported according to the Bethesda system as type II in 91 cases (26.0%), type III in 21 (6.0%), type IV in 73 (21.9%), type V in 54 (15.4%), and type VI in 111 (31.7%). The IP showed benign lesions in 137 cases (39.1%), malignancy in 169 (48.2%), and inconclusive results in 44 (12.6%). The SPR results were benign pathology in 161 cases (46%) and carcinoma in 189 (54%); carcinoma was found in 8 patients (5.8%) in whom the IP had reported benignity, and in 12 (27.2%) with IP inconclusive results; 13 of those 20 cases were incidental microcarcinomas. The IP did not report any false positive result (specificity 100 %, sensitivity 89.4%, positive predictive value 100%, negative predictive value 90.0%, and accuracy 94.2%). When discriminated by Bethesda types, the malignant lesions detected by IP and SPR were, respectively: II 3 (3.3%) and 7 (7.70%); III 8 (38.1%) and 10 (47.6%); IV 3 (4.1%) and 10 (13.7%); V 47 (87.0%) and 52 (96.3%); VI 108 (97.3%) and 110 (99.1%). In most cases, the IP did not provide additional information to the FNB report nor did it detect microcarcinomas in others, so it does not seem justified to perform it routinely.


Subject(s)
Humans , Thyroid Neoplasms/surgery , Thyroid Neoplasms/diagnosis , Carcinoma , Thyroid Nodule/surgery , Retrospective Studies , Sensitivity and Specificity , Biopsy, Fine-Needle
8.
Rev. argent. cir ; 113(2): 145-146, jun. 2021. graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1365467
9.
Rev. argent. cir ; 113(1): 24-31, abr. 2021. graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1288171

ABSTRACT

RESUMEN Antecedentes: los linfomas extranodales de cabeza y cuello (LECC) son neoplasias infrecuentes. El papel diagnóstico de la cirugía justifica considerar estas entidades entre los diagnósticos diferenciales de la patología quirúrgica de la región. Objetivo: describir las características clínico-patológicas, la localización y la asociación con enfermeda des sistémicas de una serie de pacientes operados con LECC. Material y métodos: se realizó una revisión retrospectiva de las historias clínicas de 5489 pacientes operados entre junio de 2009 y junio de 2019. Diecinueve de ellos (0,35%) presentaron LECC. Resultados: el promedio de edad fue de 56 años (rango 17- 84, DS 19,3), 16 fueron mujeres (84%). La localización de los LECC fue: glándula parótida en 12 casos (63%), glándula submaxilar en 3 casos (16%), glándula salival menor en 2 casos (11%), glándula lagrimal en 1 caso (5%), glándula tiroides en 1 caso (5%). Todos fueron linfomas no Hodgkin. Los tipos citológicos fueron: linfoma de tejido linfoideo asociado a mucosas (MALT) 9 (48%), linfoma folicular 4 (21%), linfoma de células B grandes 3 (16%), linfoma de células pequeñas 1 (5%), linfoma del manto 1 (5%), linfoma anaplásico 1 (5%). Cuatro pa cientes (21%) presentaron síndrome de Sjögren en el momento del diagnóstico, tres linfomas MALT y uno linfoma folicular. Diferentes procedimientos quirúrgicos permitieron llegar al diagnóstico. Conclusión: los LECC constituyen una forma singular de presentación de neoplasias oncohematológica. En la presente serie se manifestaron en un amplio rango de edad, con mayor frecuencia de mujeres y en la glándula parótida. Su diagnóstico pudo alcanzarse con la biopsia o resección de la zona afectada.


ABSTRACT Background: Extranodal lymphomas of the head and neck (ELHN) are rare neoplasms. The role of surgery for the diagnosis justifies thinking of these neoplasms among the differential diagnoses of the surgical disorders of the region. Objective: The aim of this study was to describe the clinical and pathological characteristics of ELHN, their location and association with systemic diseases in a series of patients undergoing surgery. Material and methods: The clinical records of 5489 patients undergoing surgery between June 2009 and June 2019 were retrospectively reviewed. Nineteen patients (0.35%) presented ELHN. Results: Mean age was 56 years (range: 17-84; SD 19.3) and 84% (n = 16) were women. The location of ELHN were the parotid gland (n =12, 63%), submaxillary gland (n = 3, 16%), salivary gland (n = 1, 5%), lacrimal gland (n = 1, 5%) and thyroid gland (n =1, 5%). All the tumors were non-Hodgkin lymphomas with the following subtypes: mucosa associated lymphoid tissue (MALT) lymphoma (n = 9, 48%), follicular lymphoma (n = 4, 21%), large B-cell lymphoma (n = 3, 16%), small B-cell lymphoma (n = 1, 5%), mantle cell lymphoma (n = 1, 5%), and anaplastic lymphoma (n =1, 5%). Four patients (21%) presented Sjögren syndrome at the moment of the diagnosis; three were MALT lymphomas and one patient had follicular lymphoma. The diagnosis was made with different surgical procedures. Conclusion: ELHN constitute a singular presentation of onco-hematology neoplasms. In our series, these tumors occurred within a wide age range and were more common in women. The parotid gland was more commonly affected. The diagnosis was made by surgical biopsy or resection of the area affected.

11.
Cir. plást. ibero-latinoam ; 46(1): 45-52, ene.-mar. 2020. tab, ilus
Article in Spanish | IBECS | ID: ibc-190859

ABSTRACT

INTRODUCCIÓN Y OBJETIVO: Los sarcomas de cabeza y cuello son un grupo infrecuente de tumores. La resección quirúrgica es su modalidad óptima de tratamiento, presentando desafíos funcionales y estéticos. El objetivo de este estudio es describir nuestros resultados en un grupo de pacientes con reconstrucción mediante colgajos libres tras la resección de sarcomas de cabeza y cuello. MATERIAL Y MÉTODO: Revisión retrospectiva de historias clínicas de pacientes operados en nuestro Servicio entre octubre de 2015 y enero de 2018. RESULTADOS: Seleccionamos 4 adultos: 3 mujeres y 1 varón, con edades entre 25 y 62 años. Dos casos presentaron sarcoma pleomórfico de órbita y otros 2 sarcoma fusocelular y osteosarcoma de la mandíbula. En todos efectuamos resección tumoral completa con márgenes satisfactorios. En el caso 1 reconstruimos con un colgajo vertical de recto anterior y en el caso 2 con un colgajo anterolateral de muslo. En ambos pacientes los colgajos permitieron una adecuada cobertura de partes blandas, sin morbilidad en la zona dadora. En los casos 3 y 4, con sarcoma de mandíbula, se produjo un extenso defecto central de la mandíbula y del piso de la boca, y la reconstrucción se llevó a cabo con colgajo libre osteocutáneo de peroné. Ambos pacientes presentaron una pequeña fístula orocutánea que cerró con tratamiento conservador. CONCLUSIONES: Cuando los sarcomas de cabeza y cuello se presentan en pacientes jóvenes, sin comorbilidades, es posible realizar resección quirúrgica extensa y reconstrucción con colgajos libres, ya que, en nuestra experiencia, fue un procedimiento seguro con mínima morbilidad en el sitio dador


BACKGROUND AND OBJECTIVE: Head and neck sarcomas are an unfrequent group of tumors. Since surgical resection is the optimal treatment modality, problems of functional and aesthetic nature arise as important challenges. The aim of this study was to describe our outcome in a series of patients with free flap reconstruction after resection of head and neck sarcomas. METHODS: We conduct a retrospective review of clinical records of patients operated on between October 2015 and January 2018. Four adult patients primary treated for sarcomas were selected: 3 woman and 1 man, ages ranged between 25 and 62 years old.Two cases presented pleomorphic sarcoma of the orbit and 2 cases spindle cell sarcoma and osteosarcoma of the jaw. RESULTS: All the patients underwent complete surgical resection with satisfactory margins. Free flaps could be harvested during tumor resection. In case 1 a vertical rectus abdominus myocutanous free flap was performed, and in case 2 an anterolateral thigh free flap. In both patients these flaps allowed adequate soft tissue coverage without donor site morbidity and early discharge. In cases 3 and 4 with sarcoma in the jaw, an extended central defect of the mandible and floor of the mouth was produced, and reconstruction was undertaken with an osteo-cutaneous fibula free flap. Both patients presented small orocutaneous fistula that were managed with conservative treatment. CONCLUSIONS: When sarcomas occur in young and otherwise healthy patients, extensive resections can be undertaken and reconstruction with free flaps is an appropriate option, as they proved to be safe, reliable and versatile in our own experience, with minimal donor site morbidity


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Plastic Surgery Procedures/methods , Head and Neck Neoplasms/surgery , Sarcoma/surgery , Surgical Flaps , Tomography, X-Ray Computed , Head and Neck Neoplasms/diagnostic imaging , Sarcoma/diagnostic imaging , Retrospective Studies
12.
Rev. argent. cir ; 112(2): 157-164, 2020. tab
Article in English, Spanish | LILACS | ID: biblio-1125796

ABSTRACT

Antecedentes: los melanomas en cabeza y cuello (MCC) han sido asociados con factores pronósticos diferentes de aquellos en otras localizaciones. Objetivo: comparar características demográficas, clínicas y resultados del tratamiento quirúrgico de pacientes con MCC y pacientes con melanomas en tronco y extremidades (MTE). Material y métodos: se llevó a cabo una revisión retrospectiva de las historias clínicas de pacientes operados por melanoma entre enero de 2012 y diciembre de 2017. Quince pacientes (22,3%) tuvieron MCC y 52 (77,7%) MTE. Resultados: ambos grupos tuvieron edad similar (63,8 ± 21,1 versus 58,5 ± 16), pero los MCC mostraron una tendencia con predominio masculino (80% versus 61,3%). Los MCC tuvieron menor espesor tumoral que los MTE (2,07 versus 5,5 mm) y mayor porcentaje de melanoma in situ, 5 (33,3%) versus 8 (15,3%), pero requirieron vaciamientos ganglionares más a menudo (33% versus 25%) así como reconstrucción del defecto primario con colgajos locales y miocutáneos. Durante el seguimiento, en el grupo de MCC, dos pacientes desarrollaron recidivas locales que fueron extirpadas, y otros tres desarrollaron metástasis a distancia en pulmón, intestino delgado y abdomen y fallecieron por la enfermedad; en el grupo de MTE un paciente tuvo recidiva local y cinco fallecieron de metástasis sistémicas. El tamaño de la muestra no permitió aplicar pruebas de significación entre las diferencias encontradas. Conclusión: los MCC se presentan en un amplio rango de edad y estadios, y tuvieron algunas diferencias clínicas con el MTE. Los defectos producidos por la extirpación de la lesión primaria requieren procedimientos reconstructivos más complejos la mayoría de las veces y se aconseja un abordaje multidisciplinario.


Background: Head and neck melanomas (HNMs) have been associated with prognostic factors different from those on other locations. Objective: The goal of the present study was to compare the demographic and clinical characteristics and the outcomes of surgical treatment between patients with HNM and those with trunk and extremity melanoma (TEM). Material and methods: The clinical records of patients undergoing surgery for melanoma between October 2014 and April 2018 were retrospectively reviewed. Fifteen patients (22.3%) had HNM and 52 (77.7) presented TEM. Results: There were no differences in age between both groups (63.8 ± 21.1 versus 58.5 ± 16), but there was a trend toward higher percentage of men in the HNM group (80% versus 61.3%). Patients with HNM had lower tumor thickness than those with TEM (2.07 versus 5.5 mm), higher incidence of melanoma in situ [5 (33.3%) versus 8 (15.3%)]; lymph node resection was more common (33% versus 25%) as well as reconstruction of the primary defect with local and musculocutaneous flaps. During follow-up, two patients in the HNM group developed local recurrences that were excised and three presented distant metastases in the lung, small bowel and abdomen and finally died due to the disease. In the TEM group, one patient had local recurrence and five died due to systemic metastases. The sample size was not sufficient to assess statistically significant differences. Conclusion: Head and neck melanomas occur in a wide age range and stages and has some clinical differences with TEM. The defects produced after the excision of the primary lesion often require more complex procedures and should be managed with a multidisciplinary approach.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Young Adult , Head and Neck Neoplasms/epidemiology , Melanoma/epidemiology , Cross-Sectional Studies , Retrospective Studies , Sentinel Lymph Node Biopsy , Extremities/pathology , Torso/pathology , Margins of Excision , Melanoma/surgery
13.
Rev. argent. cir ; 111(3): 143-151, set. 2019. ilus, tab
Article in Spanish | LILACS | ID: biblio-1057356

ABSTRACT

Antecedentes: los sarcomas de partes blandas son raros tumores mesenquimáticos con varios tipos histológicos y diferentes comportamientos clínicos. Objetivo: describir las características clínicas y patológicas, así como los resultados del tratamiento quirúrgico de una serie de pacientes operados por sarcomas de partes blandas. Material y métodos: se realizó una revisión retrospectiva de las historias clínicas de 2403 pacientes operados entre octubre de 2014 y abril de 2018. Veintidós de ellos (0,91%) presentaron sarcomas de partes blandas. Resultados: el promedio de edad fue 52 años (rango 19-92), 13 (59%) eran mujeres. La localización de los tumores fue: miembro inferior en 12 casos, cabeza y cuello en 5, tronco en 3 y miembro superior en 2. Catorce casos (63,6%) fueron tumores de alto grado. Los tipos patológicos fueron: sarcoma pleomórfico 7 (32%), sarcoma sinovial 4 (18%), liposarcoma 3 (14%), otros 4 (36 %). Todos fueron extirpados en forma completa y en 5 casos (35,7%) requirieron amputación: 4 de miembro inferior y uno superior. Según el tamaño y la ubicación del tumor se emplearon diferentes procedimientos reconstructivos, incluyendo 3 colgajos libres. Aquellos pacientes con lesiones de alto grado o con márgenes histológicamente positivos recibieron radioterapia posoperatoria. Durante el seguimiento (promedio 16 meses), seis pacientes presentaron recidivas locales, cuatro con metástasis pulmonares sincrónicas, todos ellos con tumores de alto grado. La sobrevida global fue del 86,4%. Conclusión: los sarcomas de partes blandas son neoplasias infrecuentes e invasivas, ampliamente distribuidas, que requieren procedimientos quirúrgicos agresivos. Es necesario tratamiento adyuvante en casos seleccionados y seguimiento periódico debido a la alta tasa de recidiva y metástasis a distancia.


Background: Soft-tissue sarcomas (STS) are rare mesenchymal tumors with several histologic subtypes and different clinical patterns. Objective: The aim of this study was to describe the clinical and pathological characteristics and surgical outcomes of a series of patients with STS. Material and methods: The clinical records of 2403 undergoing surgery between October 2014 and April 2018 were retrospectively reviewed. Twenty-two patients (0.91%) presented STS. Results: Mean age was 52 years (range: 19-92) and 13 (59%) were women. The tumors were located in the lower extremities in 12 cases, head and neck in five, trunk in three and upper extremities in two. Fourteen cases (63.6%) were high-grade tumors. Pleomorphic sarcoma was the most common histologic type (32%) followed by synovial sarcoma (18%), liposarcoma (14%), and other types (36%). All the tumors were completely resected and five patients (35.7%) required amputation, four in the lower extremity and on in the upper extremity. Different reconstructive procedures were performed according to tumor size and location, including three free flaps. Those patients with high-grade sarcomas or with positive margins received postoperative radiotherapy. After a mean follow-up of 16 months, six patients presented local recurrences and four patients had synchronous metastatic disease in the lungs; all these patients had high-grade tumors. Overall survival was 86.4%. Conclusion: STS are rare and invasive neoplasms, widely distributed, requiring aggressive and occasionally complex surgical procedures. It is necessary to consider adjuvant treatments in selected cases and to maintain regular follow-up due to the high rate of recurrences and distant metastases.


Subject(s)
Humans , Male , Female , Middle Aged , Sarcoma , Sarcoma/surgery , General Surgery , Tissues , Lower Extremity , Upper Extremity , Methods
14.
Rev. argent. cir ; 110(2): 73-80, jun. 2018. tab
Article in Spanish | LILACS | ID: biblio-957897

ABSTRACT

Antecedentes: el papel del estudio patológico intraoperatorio (EPI) en cirugía tiroidea ha sido discutido largamente y es todavía motivo de controversia. Objetivo: estimar los resultados del EPI en el diagnóstico de malignidad, su relación con la biopsia por punción-aspiración preoperatoria con aguja fina (PAAF) y el estudio patológico diferido (EPD), así como su contribución al cambio en la estrategia quirúrgica en cirugía tiroidea. Material y métodos: revisión retrospectiva de las historias clínicas de 773 pacientes operados por patología tiroidea entre enero de 2014 y diciembre de 2015. En todos se efectuó EPI y EPD; a 686 (89%) pacientes también se les efectuó la biopsia por PAAF preoperatoria. Resultados: los resultados del EPI fueron benigno en 215 pacientes (27,8%), maligno en 419 (54,2%) y no definitivo en 139 (18,0%). Cuando estos resultados fueron comparados con la EPD se encontraron 19 casos (8,8%) de falsos negativos y 4 (0,95%) de falsos positivos. Considerando solo los resultados definitivos, el EPI tuvo sensibilidad 95%, especificidad 98%, valor predictivo positivo 99%, valor predictivo negativo 91% y exactitud 91%. Cuando se comparó el EPI con la PAAF preoperatoria, los valores de sensibilidad más bajos (44%) correspondieron a las categorías de Bethesda III y IV. El EPI influyó en la estrategia quirúrgica en 95 pacientes (12,28%): en 53 (6,8%), la hemitiroidectomía cambió a tiroidectomía total; en 37 (4,8%), el diagnóstico de metástasis ganglionares permitió realizar un vaciamiento modificado de cuello, y en 5 (0,6%) ocurrieron ambas situaciones. Conclusión: el EPI tuvo altos valores de utilidad diagnóstica cuando se compararon con el EPD. También se correlacionó con la PAAF preoperatoria, pero tuvo menos utilidad en las categorías Bethesda III y IV. El EPI contribuyó a cambiar la decisión de técnica quirúrgica en un grupo de pacientes y evitar una segunda operación.


Background: the role of intraoperative pathologic evaluation (IPE) in thyroid surgery has largely been discussed and it is still controversial. Objective: to estimate the results of IPE in diagnosis of malignancy, its correlation with preoperative fine needle aspiration (FNA) biopsy and permanent pathologic evaluation (PPE), and its contribution to change surgical strategy in thyroid surgery. Materials and methods: retrospective chart review of 773 patients operated on for thyroid disease between January 2014 and December 2015. All patients underwent IPE and PPE; 686 (89%) patients had also preoperative FNA biopsy. Results: IPE resulted benign in 215 patients (27.8%), malignant in 419 (54.2%) and non definitive in 139 (18.0%). When these results were compared with PPE, 19 cases were false negative (8.8%) and 4 false positive (0.95). Considering only definitive results, IPE had sensitivity 95%, specificity 98%, positive predictive value 99%, negative predictive value 91% and accuracy 91%. When IPE was compared with preoperative FNA biopsy, lowest values of sensitivity (44%) corresponded with Bethesda categories III and IV. IPE influenced surgical strategy in 95 patients (12.28%): in 53 (6.8%) hemithyroidectomy changed to total thyroidectomy, in 37 (4.8%) lymph node metastases diagnosis allowed to perform modified neck dissection, and in 5 (0.6%) both situations occurred. Conclusion: IPE had high values of diagnostic utility when compared with PPE. It also correlated with preoperative FNA biopsy, but had less utility in Bethesda categories III and IV. IPE contributed to change surgical technical decision in a subset of patients and avoid a second operation.


Subject(s)
Humans , Female , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Young Adult , Thyroid Gland/pathology , Thyroidectomy , Biopsy, Needle/methods , Thyroid Neoplasms , Carcinoma, Papillary/diagnosis , Retrospective Studies , Carcinoma, Medullary/diagnosis
17.
Salud(i)ciencia (Impresa) ; 21(5): 528-530, ago.2015.
Article in Spanish | LILACS | ID: lil-785404

ABSTRACT

El currículo oculto consiste en aquellas experiencias educativas no formalmente incluidas en los programas...


Subject(s)
Humans , Curriculum , General Surgery , Teaching
19.
Eur Urol ; 68(2): 256-62, 2015 Aug.
Article in English | MEDLINE | ID: mdl-25794457

ABSTRACT

BACKGROUND: Bacillus Calmette-Guérin (BCG) maintenance therapy for 3 yr following BCG induction can reduce the progression of urothelial bladder carcinoma versus BCG induction alone, but is associated with high toxicity. OBJECTIVE: To investigate whether a modified 3-yr BCG maintenance regimen following induction therapy is more effective than standard BCG induction therapy alone and exhibits a low toxicity profile. DESIGN, SETTING, AND PARTICIPANTS: Patients from the outpatient clinics of the participating centres with high-risk non-muscle-invasive bladder carcinoma (NMIBC) were randomised between October 1999 and April 2007. INTERVENTION: Participants received BCG induction once-weekly for 6 wk (no maintenance arm) or BCG induction followed by one BCG instillation every 3 mo for 3 yr (maintenance arm). OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Primary endpoints were disease-free interval (DFI) and time to progression (TTP). Secondary endpoints included survival duration and toxicity. Differences between treatment arms were tested using Student's t test and χ(2) and log-rank tests. RESULTS AND LIMITATIONS: A total of 397 patients were randomised, 195 to the no-maintenance and 202 to the maintenance arm. A median time to recurrence was not reached in either treatment arm. DFI was similar between the arms (hazard ration [HR] 0.83; 95% CI 0.61-1.13; p=0.2) with disease relapse at 5 yr of 33.5% and 38.5%, respectively. TTP was also similar between the treatment arms (HR 0.79; 95% CI 0.50-1.26; p=0.3), with a progression rate at 5 yr of 16% and 19.5%, respectively. There were no significant differences between the treatment groups for overall survival and cancer-specific survival at 5 yr. Twenty and five patients in the maintenance and no-maintenance arms, respectively, stopped treatment because of toxicity. The most common local side effects were frequency (65% of patients), dysuria (63%), and haematuria (43%); the most frequent systemic side effects were general malaise (7.2%) and fever (34%). CONCLUSIONS: In NMIBC patients treated with maintenance therapy comprising a single BCG instillation every 3 mo for 3 yr following standard induction BCG, we did not observe a decrease in recurrence and progression rates versus induction therapy alone. PATIENT SUMMARY: Patients who undergo surgery to remove bladder cancer are usually treated with bacillus Calmette-Guérin (BCG) for 6 wk if there is a high risk of disease recurrence. Extending BCG therapy by 3 yr can further minimise disease recurrence and progression, but is associated with more side effects. We report that a modified 3-yr BCG treatment regimen showed low toxicity, but seemed to be no more effective than 6-wk treatment. TRIAL REGISTRATION: CUETO 98013.


Subject(s)
Antineoplastic Agents/administration & dosage , BCG Vaccine/administration & dosage , Carcinoma/drug therapy , Urinary Bladder Neoplasms/drug therapy , Urothelium/drug effects , Administration, Intravesical , Adult , Aged , Aged, 80 and over , Ambulatory Care , Antineoplastic Agents/adverse effects , BCG Vaccine/adverse effects , Carcinoma/mortality , Carcinoma/pathology , Chi-Square Distribution , Disease Progression , Disease-Free Survival , Drug Administration Schedule , Female , Humans , Induction Chemotherapy , Kaplan-Meier Estimate , Maintenance Chemotherapy , Male , Middle Aged , Multivariate Analysis , Risk Factors , Spain , Time Factors , Treatment Outcome , Urinary Bladder Neoplasms/mortality , Urinary Bladder Neoplasms/pathology , Urothelium/pathology
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