Cáncer gástrico avanzado: resultados de una cirugía resectiva en un centro privado y regional de salud / Advanced gastric cancer: resective surgery results in a private and regional health establishment

El cáncer gástrico (CG), representa el cuarto lugar de enfermedades oncológicas en mujeres y el primero en hombres. La mejor opción de tratamiento para pacientes con CG avanzado (CGA), sigue siendo la cirugía, lo que supone la realización de una gastrectomía total o subtotal, asociado a linfadenectomía D2 (LD2 ). El objetivo de este estudio fue determinar morbilidad postoperatoria (MPO) y supervivencia (SV) en pacientes resecados por CGA sin neoadyuvancia. La metodología usada fue serie de casos en retrospectiva de pacientes con CGA sometidos a gastrectomía total o subtotal con LD2 , de forma consecutiva, en Clínica RedSalud Mayor Temuco, entre 2008 y 2017. La variable resultado fue SV actuarial global (SVAG) a 5 años. Otras variables de interés fueron: tiempo quirúrgico, número de linfonodos resecados, estancia hospitalaria, MPO, y recurrencia. Los pacientes fueron seguidos de forma clínica. Se utilizó estadística descriptiva, con medidas de tendencia central y dispersión; y análisis de SV con curvas de Kaplan Meier y long Rank test. Se intervinieron 29 pacientes (72,4 % hombres), con una mediana de edad de 63 años. La localización más frecuente fue subcardial (51,7 %); el tipo de resección más frecuente fue gastrectomía total (51,7 %). La medianas del tiempo quirúrgico, del número de linfonodos resecados y de estancia hospitalaria; fue de 185 min, 32 y 6 días respectivamente. La MPO fue 17,2 %. Con una mediana de seguimiento de 26 meses, se verificó recurrencia de 37,9 %; y SVAG a 5 años para estadios IIIA, IIIB y IV fue de 47,6 %, 34,3 % y 15,4 % respectivamente (p < 0,05). Los resultados obtenidos, en términos de MPO, mortalidad y SVAG, fueron similares a series de centros de derivación nacionales e internacionales en los que no se ha aplicado terapias neoadyuvantes.

Gastric cancer (CG) represents the fourth place of oncological diseases in women and the first in men. The best treatment option for patients with advanced CG (ACG) is still surgery, which involves making total or subtotal gastrectomies and D2 lymphadenectomy (D2L). The aim of this study is to determine postoperative morbidity (POM) and overall survival (OS) in patients resected by CGA without neoadjuvant therapy. The methodology used was a series of cases in retrospective of patients with CGA undergoing total or subtotal gastrectomies and D2L, consecutively at RedSalud Mayor Temuco Clinic, between 2008 and 2017. The outcome variable was OS at 5 years. Other variables of interest were: surgical time, number of resected lymph nodes, hospital stay, POM, and recurrence. Patients were followed clinically. Descriptive statistics was used, and OS analysis was applied using long Rank test. Twenty-nine patients (72.4% men), with a median age of 63 years, were operated. The most frequent location was subcardinal (51.7%). The most frequent type of resection was total gastrectomy (51.7%). The median of surgical time, number of resected lymph nodes and hospital stay; was 185 min, 32 and 6 days respectively. MPO was 17.2%. With a median follow-up of 26 months, a recurrence of 37.9% was verified; and 5-year OS for stages IIIA, IIIB and IV were 47.6%, 34.3% and 15.4% respectively (p <0.05). The results achieved, in terms of POM and OS series were similar to national and international series in which neoadjuvant therapies have not been applied.

Transhiatal esophagectomy is not associated with poor quality lymphadenectomy / Esofagectomia trans-hiatal não está associada com linfadenectomia de baixa qualidade

ABSTRACT Background: Esophageal cancer neoadjuvant therapy followed by surgery increases the likelihood of treatment success. Aim: To evaluate variables that can influence the number of retrieved lymph nodes, the number of retrieved metastatic lymph nodes and lymphnodal recurrence in esophagectomy after neoadjuvant chemoradiotherapy. Methods: Patients of a single institute were evaluated after completion of trimodal therapy. Univariate and multivariate analyses were performed to evaluate variables that can influence in the number of retrieved lymph nodes and retrieved metastatic lymph nodes. Results: One hundred and forty-nine patients were included. Thoracoscopy access was considered an independent factor for the number of lymph nodes retrieved, but was neither related to the number of positive lymph nodes retrieved nor to lymphnodal recurrence. Pathological complete response on the primary tumor and male were independent variables associated with the number of positive lymph node retrieved. Pathological complete response on the primary tumor site did not statistically influence the likelihood of a lower number of lymph nodes retrieved. Conclusion: Patients submitted to esophagectomy after neoadjuvant chemoradiotherapy, thoracoscopic access is more accurate for pathological staging, even in a complete pathological response. With a proper patient selection, transhiatal surgery may preserve the quality of lymphadenectomy of the positive lymph nodes.

RESUMO Racional: No câncer esofágico a terapia neoadjuvante seguida de procedimento cirúrgico aumenta a probabilidade de sucesso do tratamento. Objetivo: Avaliar variáveis que podem influenciar o número de linfonodos recuperados, o número de linfonodos metastáticos recuperados e a recorrência linfonodal na esofagectomia após quimiorradioterapia neoadjuvante. Métodos: Os pacientes incluídos foram aqueles que terminaram terapia trimodal. Análises univariadas e multivariadas foram realizadas para avaliar as variáveis que pudessem influenciar no número de linfonodos recuperados e nos metastáticos recuperados. Resultados: Cento e quarenta e nove pacientes foram incluídos. O acesso por toracoscopia foi considerado fator independente para o número de linfonodos recuperados, mas não teve relação com o número de linfonodos positivos recuperados, nem com recorrência linfonodal. Resposta patológica completa no tumor primário e homens foram variáveis independentes associadas ao número de linfonodos positivos recuperados. A resposta patológica completa do tumor primário não acarretou em número menor de linfonodos recuperados. Conclusão: Em pacientes submetidos à esofagectomia após quimiorradioterapia neoadjuvante o acesso toracoscópico é mais preciso para estadiamento patológico, mesmo em resposta patológica completa. Com seleção adequada a esofagectomia trans-hiatal pode preservar a qualidade da linfadenectomia dos linfonodos positivos.

Guided intraoperative scintigraphic tumor targeting of metastatic cervical lymph nodes in patients with differentiated thyroid cancer: a single-center report

ABSTRACT Objective: Our aim was to present our experiences related to performing neck surgery using the guided intraoperative scintigraphic tumor targeting (GOSTT) procedure for patients who had locally recurrent or persistent differentiated thyroid cancer (DTC) and who had undergone previous thyroid surgery. Subjects and methods: We retrospectively evaluated 11 patients who had locally recurrent or persistent DTC, who had undergone previous surgery, and for whom reoperation was planned for metastatic cervical lymph nodes (LNs). We performed the neck surgery using the GOSTT procedure on all patients and at a single academic institution. Results: The 11 patients had a total of 26 LNs, as marked with a radiotracer, and those LNs' mean size was 14.7 ± 8.2 mm (range: 5-34 mm). Histopathological examinations revealed DTC metastasis in all 26 of the preoperatively marked LNs. Of the 11 patients, only one needed a reoperation in the neck; she had another successful surgery (also using the GOSTT procedure). In the evaluation of the patients' final status, all were disease-free in their necks. There also were no GOSTT-associated postoperative complications. Conclusion: The GOSTT procedure is a useful, successful, inexpensive, and comfortable procedure for marking and mapping metastatic LNs, especially in DTC patients who have undergone previous surgery.

Surgical treatment of gastric cancer: a 10-year experience in a high-volume university hospital

OBJECTIVES: Surgery remains the cornerstone treatment modality for gastric cancer, the fifth most common type of tumor in Brazil. The aim of this study was to analyze the surgical treatment outcomes of patients with gastric cancer who were referred to a high-volume university hospital. METHODS: We reviewed all consecutive patients who underwent any surgical procedure due to gastric cancer from a prospectively collected database. Clinicopathological characteristics, surgical and survival outcomes were evaluated, with emphasis on patients treated with curative intent. RESULTS: From 2008 to 2017, 934 patients with gastric tumors underwent surgical procedures in our center. Gastric adenocarcinoma accounted for the majority of cases. Of the 875 patients with gastric adenocarcinoma, resection with curative intent was performed in 63.5%, and palliative treatment was performed in 22.4%. The postoperative surgical mortality rate for resected cases was 5.3% and was related to D1 lymphadenectomy and the presence of comorbidities. Analysis of patients treated with curative intent showed that resection extent, pT category, pN category and final pTNM stage were related to disease-free survival (DFS) and overall survival (OS). The DFS rates for D1 and D2 lymphadenectomy were similar, but D2 lymphadenectomy significantly improved the OS rate. Additionally, clinical factors and the presence of comorbidities had influence on the OS. CONCLUSIONS: TNM stage and the type of lymphadenectomy were independent factors related to prognosis. Early diagnosis should be sought to offer the optimal surgical approach in patients with less-advanced disease.

Robotic pulmonary lobectomy for lung cancer treatment: program implementation and initial experience / Lobectomia pulmonar robótica para tratamento do câncer de pulmão e de metástases pulmonares: implantação do programa e experiência inicial

ABSTRACT Objective: To describe the implementation of a robotic thoracic surgery program at a public tertiary teaching hospital and to analyze its initial results. Methods: This was a planned interim analysis of a randomized clinical trial aimed at comparing video-assisted thoracoscopic surgery and robotic surgery in terms of the results obtained after pulmonary lobectomy. The robotic surgery program developed at the Instituto do Câncer do Estado de São Paulo, in the city of São Paulo, Brazil, is a multidisciplinary initiative involving various surgical specialties, as well as anesthesiology, nursing, and clinical engineering teams. In this analysis, we evaluated the patients included in the robotic lobectomy arm of the trial during its first three months (from April to June of 2015). Results: Ten patients were included in this analysis. There were eight women and two men. The mean age was 65.1 years. All of the patients presented with peripheral tumors. We performed right upper lobectomy in four patients, right lower lobectomy in four, and left upper lobectomy in two. Surgical time varied considerably (range, 135-435 min). Conversion to open surgery or video-assisted thoracoscopic surgery was not necessary in any of the cases. Intraoperative complications were not found. Only the first patient required postoperative transfer to the ICU. There were no deaths or readmissions within the first 30 days after discharge. The only postoperative complication was chest pain (grade 3), in two patients. Pathological examination revealed complete tumor resection in all cases. Conclusions: When there is integration and proper training of all of the teams involved, the implementation of a robotic thoracic surgery program is feasible and can reduce morbidity and mortality.

RESUMO Objetivo: Descrever a implantação de um programa de cirurgia torácica robótica em um hospital terciário público universitário e analisar seus resultados iniciais. Métodos: Este estudo é uma análise interina planejada de um ensaio clínico aleatorizado cujo objetivo é comparar resultados da lobectomia pulmonar por videotoracoscopia com a robótica. O programa de cirurgia robótica do Instituto do Câncer do Estado de São Paulo, localizado na cidade de São Paulo (SP), foi uma iniciativa multidisciplinar que envolveu diversas especialidades cirúrgicas e equipes de anestesia, enfermagem e engenharia clínica. Nesta análise, avaliamos os pacientes incluídos no braço lobectomia robótica durante os primeiros três meses do estudo (de abril a junho de 2015). Resultados: Dez pacientes foram incluídos nesta análise. Eram oito mulheres e dois homens. A média de idade foi de 65,1 anos. Todos apresentavam tumores periféricos. Foram realizadas lobectomia superior direita, em quatro pacientes; lobectomia inferior direita, em quatro; e lobectomia superior esquerda, em dois. Os tempos cirúrgicos variaram bastante (variação, 135-435 min). Não foi necessária a conversão para técnica aberta ou videotoracoscópica em nenhum paciente. Não foram observadas complicações intraoperatórias. Apenas o primeiro paciente foi encaminhado à UTI no pós-operatório. Não houve mortalidade nem reinternações em 30 dias após a alta. A única complicação pós-operatória observada foi dor torácica (grau 3), em dois pacientes. O exame anatomopatológico revelou a ressecção completa do tumor em todos os casos. Conclusões: A implantação de um programa de cirurgia torácica robótica, quando há integração e treinamento adequado de todas as equipes envolvidas, é factível e pode reduzir a morbidade e a mortalidade.

Robot-Assisted Extended Pelvic Lymph Nodes Dissection for Prostate Cancer: Personal Surgical Technique and Outcomes

Objective: Extended pelvic lymph nodes dissection (EPLND) allows the removal of a higher number of lymph nodes than limited PLND. The aims of this study were to describe our robot-assisted EPLND (RAEPLND) technique with related complications, and to report the number of lymph nodes removed and the rate of lymph nodal metastasis. Materials and Methods: 153 patients underwent RAEPLND prior to robot-assisted radical prostatectomy (RARP). Indications were defined according to Briganti nomogram, to predict risk of lymph-nodal metastasis. Lymphatic packages covering the distal tract of the common iliac artery, the medial portion of the external iliac artery, the external iliac vein and the internal iliac vessels, together with the obturator and the presacral lymphatic packages were removed on both sides. Results: Median preoperative PSA was 7.5 ng/mL (IQR 5.5–11.5). Median operative time was 150 min (135–170). Median RAEPLND alone operative time was 38 min (32.75–41.25); for right and left side, 18 (15–29) and 20 min (15.75–30) (p=0.567). Median number of lymph nodes retrieved per patient was 25 (19.25–30); 13 (11–16) and 11 (8–15) for right and left side. In 19 patients (12.41%) metastasis was found at the level of pelvic lymph nodes. Median number of positive lymph nodes was 1 (1–4.6) per patient. Complications occurred in 11 patients (7.3%). Conclusions: the number of lymph nodes removed was comparable to published data about open series, allowing the increase of detection rate of lymph nodal metastasis for minimally invasive approach without compromising complications' rate if performing the procedure following reported technique.

Feasibility, complications and oncologic results of a limited inguinal lymph node dissection in the management of penile cancer

In patients with penile cancer (PeCa) and increased risk of inguinal lymphatic dissemination, inguinal lymphadenectomy offers a direct histological staging as the most reliable tool for assessment of the nodal metastasic status and a definitive oncologic treatment simultaneously. However, peri- and/or postoperative mutilating sequalae often occurn. We report on clinical outcome and complications of a limited inguinal lymph node (LN) dissection.

Should a family history of papillary thyroid carcinoma indicate more aggressive therapy in patients with this tumor? / História familiar de carcinoma papilífero de tireoide deve indicar terapia mais agressiva em pacientes com este tumor?

Objective To determine whether the currently recommended therapy for papillary thyroid carcinoma (PTC) that show no classical factors indicating a poor prognosis is also effective in cases with a family history of this tumor. Subjects and methods: Forty-two patients were studied; 10 were submitted to lobectomy and 32 to total thyroidectomy, including 23 without lymph node dissection and 9 with lymph node dissection. None of the patients received radioiodine or was maintained under TSH suppression. Results No case of recurrence was detected by imaging methods and there was no increase in thyroglobulin or antithyroglobulin antibodies during follow-up (24 to 72 months). Conclusion The treatment usually recommended for patients with PTC does not need to be modified in the presence of a family history of this tumor if no factors indicating a poor prognosis are present (tumor ≤2 cm, non-aggressive histology, no extensive extrathyroid invasion or important lymph node involvement, complete tumor resection, no evidence of persistent disease after surgery). .

Objetivo Avaliar se a terapia atualmente recomendada para o carcinoma papilífero de tireoide (CPT) sem fatores clássicos de pior prognóstico é efetiva também nos casos em que existe história familiar deste tumor. Sujeitos e métodos: Foram avaliados 42 pacientes; dez foram tratados com lobectomia e 32 com tireoidectomia total, sendo 23 sem dissecção de linfonodos e 9 com dissecção linfonodal. Nenhum paciente recebeu radioiodo ou foi mantido com TSH suprimido. Resultados Nenhuma recidiva nos métodos de imagem foi observada, nem incremento da tireoglobulina ou anticorpos antitireoglobulina durante o seguimento (24 a 72 meses). Conclusão Em pacientes com CPT, sem fatores de pior prognóstico (tumor ≤2 cm, histologia não agressiva, sem invasão extratireoidiana extensa ou acometimento linfonodal importante, ressecção tumoral completa, sem indícios de doença persistente após a cirurgia), o tratamento usualmente recomendado não precisa ser modificado quando há história familiar desse tumor. .

Extending boundaries in minimally invasive procedures with simultaneous bilateral video endoscopic inguinal lymphadenectomy (veil) for penile cancer: initial Denver health medical center and ABC school of medicine experience and surgical considerations

Purpose To report the surgical technique, procedural outcomes, and feasibility of simultaneous bilateral Video Endoscopic Inguinal Lymphadenectomy (VEIL) in the management of patients with indication for inguinal lymphadenectomy. Surgical Technique: VEIL was applied in all patients using the oncological landmarks (the adductor longus muscle medially, the sartorius muscle laterally and the inguinal ligament superiorly). A 1.5 cm incision was made 2 cm distally to the lower vertex of the femoral triangle. A second incision was made 2 cm proximally and 6 cm medially. Two 10 mm Hasson trocars were inserted in these incisions and the working space was insufflated with CO2 at 5-15 mmHg. The final trocar was placed 2 cm proximally and 6 cm laterally from the first port. Results: A total of 5 VEIL procedures in 3 patients were performed. Two patients underwent simultaneous bilateral VEIL while another underwent simultaneous bilateral surgery with VEIL on the right and open lymphadenectomy on the left side due to an enlarged node. All laparoscopic procedures were successfully performed without conversion and maintained the oncological templates. One lymphocele occurred in the patient who underwent the open procedure. None of the patients presented with skin necrosis after the procedure. Mean number of nodes retrieved was 6 from each side and 2 patients presented with positive inguinal nodes. After one year of follow-up no recurrences were observed. Conclusion: Simultaneous lymphadenectomy procedures are feasible. Improvement in operative and anesthesia time could decrease the morbidity associated with inguinal lymphadenectomy while maintaining the oncological principles. .

Biópsia excisional por agulhamento de lesões mamárias não palpáveis: indicações, técnica e resultados / Excisonal biopsy with wirw localization of non palpable breast lesions: indicators, technique and results

Com o aumento do rastreamento mamográfico, identificam-se cada vez mais lesões menores e não palpáveis, surgindo a necessidade de localiza-las tanto para diagnóstico como para tratamento. Neste trabalho, descreveram-se a técnica e suas indicações e apresentaram-se os resultados dos casos de agulhamento do Serviço de Mastologia e Radiologia do Hospital de Clínicas de Porto Alegre (HCPA). Métodos: Avaliaram-se, retrospectivamente, 586 casos de agulhamento operados no período de 1995 a 2004. As indicações para o procedimento foram as alterações mamográficas de lesões não palpáveis, classificadas de acordo o sistema BIRADS. Resultados: A principal indicação cirúrgica foram as microcalcificações, num total de 373 casos (63,7%), seguidas de nódulos em 37,2%. A idade média das pacientes foi de 53 anos (23 a 82). O valor preditivo positivo (VPP) geral para malignidade foi de 0,30 (177/586 casos). As alterações funcionais benignas da mama (AFBMs) corresponderam ao diagnóstico mais comum (34,1%). Noventa e quatro por cento dos casos de carcinoma ductal in situ (CDIS) foram diagnosticados mamograficamente como microcalcificações. Conclusões: Considerando os dados apresentados e a experiência do serviço, a biópsia por agulhamento continua sendo o principal procedimento para diagnóstico e tratamento de lesões não palpáveis. Trata-se de um método seguro, porém não isento de riscos.

With the increasing use of mammography, more and smaller non- palpable lesions are found, bringing the need of localize them for diagnostic and even therapeutic purposes. We describe the surgical technique, indications and results with the well-known standard procedure of excision after wire localization. Method: We retrospectively evaluated the result of 586 wire localizations between 1995 and 2004. The indications for the procedure were non-palpable mammographic abnormalities classified according to BIRADS system. Results: The main indication for this procedure were microcalcifications in 63.7% of the cases (n=373), followed by lumps 37.2%. The mean age of these patients was 53 years (range 23- 82 years). We observed an overall positive predictive value (PPV) for malignancy of 0.30 (177/586 cases). Benign fybrocistic changes was found as the most common pathological diagnosis (34.1%). Ninety-four per cent of the ductal carcinoma in situ were detected mammographically as microcalcifications. Conclusions: The authors call attention for the use of a very careful and delicate surgical technique in order to achieve the best results. Our experience confirm that the wire-guided excision of non-palpable breast lesions is a safe and reliable diagnostic/therapeutic procedure.

VEGF immunoexpression in penile carcinoma

Objective: To investigate the vessel endothelial growth factor (VEGF) as a risk factor in squamous cell carcinoma of the penis (SCCP). Methods: Forty seven patients with penile carcinoma were evaluated retrospectively. The mean age and standard deviation were 61.1ñ11.7 years. All of them were treated by penectomy and those with positive nodes underwent groin lymphadenectomy. Tumor grading was 35 G1 and 12 G2/3. Primary lesion stage was 24 pTl and 23 pT2-4. Positive inguinal nodes were observed in 15 patients. Selected paraffin embedded sections were submitted to VEGF immunohistochemical analysis by the avidin-biotin-immunoperoxidase method with antigen retrieval. All slides were examined using an automatic analyzer system and the proportion of labeled cells in 10 high magnification power fields (400X) were recorded in a blind analysis. Results - Median (percent) labeling index was 2.3 in Gl versus 2.2 in G2/3 tumors (p=0.60), and 4.0 in pTl versus 1.8 pT2-4 tumors (p=0.10). The respective data for pN0 patients was 2.8 and for pN+ was 2.1 (p=0.20). Survival curves showed no association with patients survival. Conclusion: In squamous cell carcinoma of the penis the VEGF immunoexpression has no association with tumor grade or stage, as well as with patient survival.

Estudo da morbi-mortalidade relacionado à gastrectomia à D2 / D2 gastrectomy, a study of related morbidity and mortality

A gastrectomia e o controle loco regional através da linfadenectomia para os tumores gástricos permanece como a melhor possibilidade de cura para o câncer gástrico. Apesar de todos os avanços, a morbi-mortalidade permanece elevada, sendo a extensão da linfadenectomia rotulada como uma das principais razões para isso. Os autores acompanharam os pacientes submetidos à gastrectomia com linfadenectomia alargada à D2 durante o período de três anos, avaliando os possíveis fatores determinantes da morbi-mortalidade cirúrgica. Nesta análise, obtivemos 30 por cento de morbidade e um único óbito correspondendo a 0,8 por cento de mortalidade. O nível sérico de albumina e a extensão da gastrectomia foram os fatores independentes de maior relevância para a morbi-mortalidade.

Avaliaçäo dos gânglios regionais do carcinoma epidermóide do pênis (CEP) através de um índice de risco / Evaluation of the regional lymphatic nodes in epidermoid carcinoma of the penis (CEP) by of the risk index

O objetivo desse estudo foi investigar a validade de um índice de risco (IR) no prognóstico de metástases ganglionares no carcinoma epidermóide do pênis (CEP). Foram analisados 53 pacientes com CEP atendidos no Hospital das Clínicas da FMRP-USP, de janeiro de 1978 a dezembro de 1995. A idade variou de 32 a 97 anos. Os tumores foram graduados de acordo com a classificaçäo de Broders e estadiados retrospectivamente (TNM 1999). O IR foi determinado pela soma de TeG (IR = T+G). A linfadenectomia inguinal bilateral (LD) foi indicada naqueles que apresentaram gânglios suspeitos após a antibioticoterapia ou que vieram apresentar alteraçöes durante o período de observaçäo. Faleceram 17 pacientes; A LD foi realizada em 14 pacientes e os 39 restantes permaneceram em observaçäo clínica, sendo que em 8 deles foi feito LD após tempo mediano de 9 meses. Dos pacientes com índice de risco 2 e 3 92 por cento e 80 por cento respectivamente näo apresentavam metastase ganglionar, ao passo que a totalidade daqueles com IR=6 tinha gânglios comprometidos. A associaçäo dos grupos 2 e 3, comparada ao conjunto 4, 5 e 6, mostrou percentual maior de comprometimento nestes últimos (p = 0,0046). Dos 36 pacientes inicialmente No, 27 apresentavam IR 2 ou 3, dos quais 5 evoluíram para N+ (19 por cento); os 9 restantes eram IR >/= 4 e 3 também evoluíram para N+ (33 por cento). Apesar da diferença, näo houve significância estatística entre eles (p = 0,3837). Embora tenha ocorrido maior comprometimento naqueles com IR >/= 4, o índice de risco näo foi capaz de identificar previamente pacientes que evoluíram para N+.