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1.
Br J Surg ; 106(9): 1147-1155, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31233220

RESUMO

BACKGROUND: Colonic J pouch reconstruction has been found to be associated with a lower incidence of anastomotic leakage than straight anastomosis. However, studies on this topic are underpowered and retrospective. This randomized trial evaluated whether the incidence of anastomotic leakage was reduced after colonic J pouch reconstruction compared with straight colorectal anastomosis following anterior resection for rectal cancer. METHODS: This multicentre RCT included patients with rectal carcinoma who underwent low anterior resection followed by colorectal anastomosis. Patients were assigned randomly to receive a colonic J pouch or straight colorectal anastomosis. The main outcome measure was the occurrence of major anastomotic leakage. The incidence of global (major plus minor) anastomotic leakage and general complications were secondary outcomes. Risk factors for anastomotic leakage were identified by regression analysis. RESULTS: Of 457 patients enrolled, 379 were evaluable (colonic J pouch arm 190, straight colorectal arm 189). The incidence of major and global anastomotic leakage, and general complications was 14·2, 19·5 and 34·2 per cent respectively in the colonic J pouch group, and 12·2, 19·0 and 27·0 per cent in the straight colorectal anastomosis group. No statistically significant differences were observed between the two arms. In multivariable logistic regression analysis, male sex (odds ratio 1·79, 95 per cent c.i. 1·02 to 3·15; P = 0·042) and high ASA fitness grade (odds ratio 2·06, 1·15 to 3·71; P = 0·015) were independently associated with the occurrence of anastomotic leakage. CONCLUSION: Colonic J pouch reconstruction does not reduce the incidence of anastomotic leakage and postoperative complications compared with conventional straight colorectal anastomosis. Registration number NCT01110798 (http://www.clinicaltrials.gov).


Assuntos
Colo/cirurgia , Bolsas Cólicas , Procedimentos de Cirurgia Plástica , Neoplasias Retais/cirurgia , Reto/cirurgia , Grampeamento Cirúrgico , Idoso , Anastomose Cirúrgica/efeitos adversos , Anastomose Cirúrgica/métodos , Fístula Anastomótica/epidemiologia , Fístula Anastomótica/etiologia , Bolsas Cólicas/efeitos adversos , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Procedimentos de Cirurgia Plástica/efeitos adversos , Procedimentos de Cirurgia Plástica/métodos , Grampeamento Cirúrgico/métodos
3.
Tech Coloproctol ; 21(8): 633-640, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28755256

RESUMO

BACKGROUND: Rectum-sparing approaches appear to be appropriate in rectal cancer patients with a major (mCR) or complete clinical response (cCR) after neoadjuvant therapy. The aim of the present study is to evaluate the effectiveness of rectum-sparing approaches at 2 years after the completion of neoadjuvant treatment. STUDY DESIGN: Patients with rectal adenocarcinoma eligible to receive neoadjuvant therapy will be prospectively enrolled. Patients will be restaged 7-8 weeks after the completion of neoadjuvant therapy and those with mCR (defined as absence of mass, small mucosal irregularity no more than 2 cm in diameter at endoscopy and no metastatic nodes at MRI) or cCR will be enrolled in the trial. Patients with mCR will undergo local excision, while patients with cCR will either undergo local excision or watch and wait policy. The main end point of the study is to determine the percentage of rectum preservation at 2 years in the enrolled patients. CONCLUSION: This protocol is the first prospective trial that investigates the role of both local excision and watch and wait approaches in patients treated with neoadjuvant therapy for rectal cancer. The trial is registered at clinicaltrials.gov (NCT02710812).


Assuntos
Adenocarcinoma/terapia , Neoplasias Retais/terapia , Conduta Expectante , Adenocarcinoma/cirurgia , Quimiorradioterapia Adjuvante , Quimioterapia Adjuvante , Humanos , Terapia Neoadjuvante , Tratamentos com Preservação do Órgão , Período Pré-Operatório , Radioterapia Adjuvante , Neoplasias Retais/cirurgia , Reto , Projetos de Pesquisa
4.
Tech Coloproctol ; 21(2): 139-147, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28194568

RESUMO

BACKGROUND: The aim of this study was to identify risk factors for lymph node positivity in T1 colon cancer and to carry out a surgical quality assurance audit. METHODS: The sample consisted of consecutive patients treated for early-stage colon lesions in 15 colorectal referral centres between 2011 and 2014. The study investigated 38 factors grouped into four categories: demographic information, preoperative data, indications for surgery and post-operative data. A univariate and multivariate logistic regression analysis was performed to analyze the significance of each factor both in terms of lymph node (LN) harvesting and LN metastases. RESULTS: Out of 507 patients enrolled, 394 patients were considered for analysis. Thirty-five (8.91%) patients had positive LN. Statistically significant differences related to total LN harvesting were found in relation to central vessel ligation and segmental resections. Cumulative distribution demonstrated that the rate of positive LN increased starting at 12 LN harvested and reached a plateau at 25 LN. CONCLUSIONS: Some factors associated with an increase in detection of positive LN were identified. However, further studies are needed to identify more sensitive markers and avoid surgical overtreatment. There is a need to raise the minimum LN count and to use the LN count as an indicator of surgical quality.


Assuntos
Neoplasias do Colo/patologia , Detecção Precoce de Câncer/estatística & dados numéricos , Excisão de Linfonodo/estatística & dados numéricos , Linfonodos/patologia , Metástase Linfática/diagnóstico , Adulto , Idoso , Neoplasias do Colo/etiologia , Neoplasias do Colo/cirurgia , Detecção Precoce de Câncer/métodos , Feminino , Humanos , Modelos Logísticos , Linfonodos/cirurgia , Masculino , Auditoria Médica , Uso Excessivo dos Serviços de Saúde/estatística & dados numéricos , Pessoa de Meia-Idade , Análise Multivariada , Estadiamento de Neoplasias , Estudos Retrospectivos , Fatores de Risco
5.
Colorectal Dis ; 17(5): 397-402, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25512176

RESUMO

AIM: Transanal minimal invasive surgery (TAMIS) of rectal lesions is increasingly being used, but the technique is not yet standardized. The aims of this study were to evaluate peri-operative complications and long-term functional outcome of the technique and to analyse whether or not the rectal defect needs to be closed. METHOD: Consecutive patients undergoing TAMIS using the SILS port (Covidien) and standard laparoscopic instruments were studied. RESULTS: Seventy-five patients (68% male) of mean age 67 (± 15) years underwent single-port transanal surgery at three different centres for 37 benign lesions and 38 low-risk cancers located at a mean of 6.4 ± 2.3 cm from the anal verge. The median operating time was 77 (25-245) min including a median time for resection of 36 (15-75) min and for closure of the rectal defect of 38 (9-105) min. The defect was closed in 53% using interrupted (75%) or a running suture (25%). Intra-operative complications occurred in six (8%) patients and postoperative morbidity was 19% with only one patient requiring reoperation for Grade IIIb local infection. There was no difference in the incidence of complications whether the rectal defect was closed or left open. Patients were discharged after 3.4 (1-21) days. At a median follow-up of 12.8 (2-29) months, the continence was normal (Vaizey score of 1.5; 0-16). CONCLUSION: Transanal rectal resection can be safely and efficiently performed by means of a SILS port and standard laparoscopic instruments. The rectal defect may be left open and at 1 year continence is not compromised.


Assuntos
Adenocarcinoma/cirurgia , Adenoma/cirurgia , Tumor Carcinoide/cirurgia , Neoplasias Intestinais/cirurgia , Laparoscopia/métodos , Neoplasias Retais/cirurgia , Infecção da Ferida Cirúrgica , Cirurgia Endoscópica Transanal/métodos , Técnicas de Fechamento de Ferimentos , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Bases de Dados Factuais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos , Duração da Cirurgia , Complicações Pós-Operatórias , Estudos Prospectivos , Reto/cirurgia , Técnicas de Sutura
6.
Br J Cancer ; 108(8): 1566-70, 2013 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-23558891

RESUMO

BACKGROUND: Preoperative treatment of resectable liver metastases from colorectal cancer (CRC) is a matter of debate. The aim of this study was to assess the feasibility and activity of bevacizumab plus FOLFIRI in this setting. METHODS: Patients aged 18-75 years, PS 0-1, with resectable liver-confined metastases from CRC were eligible. They received bevacizumab 5 mg kg(-1) followed by irinotecan 180 mg m(-)(2), leucovorin 200 mg m(-)(2), 5-fluorouracil 400 mg m(-)(2) bolus and 5-fluorouracil 2400 mg m(-)(2) 46-h infusion, biweekly, for 7 cycles. Bevacizumab was stopped at cycle 6. A single-stage, single-arm phase 2 study design was applied with 1-year progression-free rate as the primary end point, and 39 patients required. RESULTS: From October 2007 to December 2009, 39 patients were enrolled in a single institution. Objective response rate was 66.7% (95% exact CI: 49.8-80.9). Of these, 37 patients (94.9%) underwent surgery, with a R0 rate of 84.6%. Five patients had a pathological complete remission (14%). Out of 37 patients, 16 (43.2%) had at least one surgical complication (most frequently biloma). At 1 year of follow-up, 24 patients were alive and free from disease progression (61.6%, 95% CI: 44.6-76.6). Median PFS and OS were 14 (95% CI: 11-24) and 38 (95% CI: 28-NA) months, respectively. CONCLUSION: Preoperative treatment of patients with resectable liver metastases from CRC with bevacizumab plus FOLFIRI is feasible, but further studies are needed to define its clinical relevance.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/cirurgia , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/cirurgia , Adulto , Idoso , Anticorpos Monoclonais Humanizados/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Bevacizumab , Camptotecina/administração & dosagem , Camptotecina/análogos & derivados , Quimioterapia Adjuvante , Neoplasias Colorretais/patologia , Intervalo Livre de Doença , Feminino , Fluoruracila/administração & dosagem , Humanos , Estimativa de Kaplan-Meier , Leucovorina/administração & dosagem , Neoplasias Hepáticas/secundário , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Taxa de Sobrevida
7.
ESMO Open ; 8(1): 100748, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36603521

RESUMO

BACKGROUND: Maintaining angiogenesis inhibition and switching the chemotherapy backbone represent the current second-line therapy in patients with RAS-mutant metastatic colorectal cancer (mCRC). Regorafenib, an oral multikinase inhibitor, prolonged overall survival (OS) in the chemorefractory setting. MATERIALS AND METHODS: STREAM was an academic, multicenter, single-arm phase II trial, evaluating the activity of regorafenib in RAS-mutant mCRC, in terms of the rate of patients who were progression-free after 6 months from study entry (6mo-PF). Patients were pretreated with fluoropyrimidine, oxaliplatin, and bevacizumab. According to Simon's two-stage design, ≥18 patients 6mo-PF were needed in the overall population (N = 46). Secondary endpoints were safety, objective response rate (ORR), progression-free survival (PFS), and OS. Early metabolic response by [18F]2-fluoro-2-deoxy-D-glucose-positron emission tomography/computed tomography ([18F]-FDG PET/CT) scan was an exploratory endpoint. EudraCT Number: 2015-001105-13. RESULTS: The number of patients 6mo-PF was 8/22 at the first stage and 14/46 in the overall population. The ORR was 10.9%, disease control rate was 54.6%, median (m)PFS was 3.6 months [95% confidence interval (CI) 1.9-6.7 months], mOS was 18.9 months (95% CI 10.3-35.3 months), and mPFS2 (from study entry to subsequent-line progression) was 13.3 months (95% CI 8.4-19.7 months). Long benefiter patients (>6mo-PF) significantly more often had a single metastatic site and lung-limited disease. No unexpected toxicity was reported. Grade ≥3 events occurred in 39.1% of patients, with hand-foot syndrome (13%), fatigue, and hyperbilirubinemia (6.5%) occurring mostly. Baseline metabolic assessment was associated with OS in the multivariate analysis, while early metabolic response was not associated with clinical outcomes. CONCLUSIONS: The study did not meet its primary endpoint. However, regorafenib was well tolerated and did not preclude subsequent treatments. Patients with good prognostic features (single metastatic site and lung-limited disease) reported clinical benefit with regorafenib. The exploratory metabolic analysis suggests that baseline [18F]-FDG PET/CT might be useful to select patients with a favorable outcome. A chemotherapy-free interval with regorafenib was associated with durable disease control in a selected group of patients with favorable clinical characteristics.


Assuntos
Neoplasias do Colo , Neoplasias Colorretais , Humanos , Fluordesoxiglucose F18/uso terapêutico , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Piridinas/farmacologia , Neoplasias Colorretais/tratamento farmacológico , Neoplasias do Colo/tratamento farmacológico
8.
Eur Rev Med Pharmacol Sci ; 26(8): 2875-2890, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35503632

RESUMO

The imaging has critical responsibility in the assessment of peritoneal lesions along with estimating the overall extent. Valuing disease burden is crucial for selection of combining cytoreductive surgery (CRS) and intraperitoneal hyperthermic chemotherapy (HIPEC) treatment. An approach that combines the strength of several imaging tools and increases diagnostic accuracy, should be chosen, even if the preferred imaging tool in patients with suspected Peritoneal Carcinomatosis (PC) is CT. The outcomes of PC are mainly correlated to tumor spread, localization, and lesion size. Accurate assessment of these features is critical for prognosis and treatment planning. These data can be evaluated by Peritoneal Cancer Index (PCI), a quantitative index suggested by Harman and Sugarbaker. Additionally, precise predictive biomarkers should be established to predict PC in patients at risk. The radiomics analysis could predict PC throughout the evaluation of cancers heterogeneity.


Assuntos
Hipertermia Induzida , Neoplasias Peritoneais , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Terapia Combinada , Procedimentos Cirúrgicos de Citorredução , Humanos , Hipertermia Induzida/métodos , Quimioterapia Intraperitoneal Hipertérmica , Neoplasias Peritoneais/diagnóstico por imagem , Neoplasias Peritoneais/terapia
9.
Eur Rev Med Pharmacol Sci ; 24(23): 12050-12062, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33336723

RESUMO

The assessment of tumor response, after neoadjuvant radiochemotherapy (nCRT), allows stratifying the patient in order to consider the proper therapeutical management. Histopathology analysis of the surgical specimen is considered the gold standard to assess tumour response and the definition of a complete cancer response is related to the clinical and endoscopic features, by direct evaluation of the rectal wall. However, imaging studies, especially Magnetic Resonance Imaging (MRI) have provided additional parameters, as the evaluation of nodal or mesorectal status. MRI provides a radiological tumour regression grade (mrTRG) that is correlated with the pathologic tumor regression grade (pTRG). Functional MRI parameters have additional impending in early prediction of the efficacy of therapy and can be valuable in drug development processes. Some of functional methodologies are already part of clinical practice: diffusion-weighted MRI (DW-MRI) and perfusion imaging (dynamic contrast enhanced MRI [DCE-MRI]). Other technologies, such as radiomics with MRI are still in the experimental phase. An adequate radiological report describing the restaging of rectal cancer after nCRT should be a "structured report" to improve communication in a multidisciplinary team.


Assuntos
Quimiorradioterapia Adjuvante , Recidiva Local de Neoplasia/terapia , Neoplasias Retais/terapia , Humanos , Imageamento por Ressonância Magnética , Recidiva Local de Neoplasia/diagnóstico por imagem , Radiologistas , Neoplasias Retais/diagnóstico por imagem
10.
Eur J Surg Oncol ; 46(9): 1683-1688, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32220542

RESUMO

INTRODUCTION: Transverse colon cancer (TCC) is poorly studied, and TCC cases are often excluded from large prospective randomized trials because of their complexity and their potentially high complication rate. The best surgical approach for TCC has yet to be established. The aim of this large retrospective multicenter Italian series is to investigate the advantages and disadvantages of both hemicolectomy and transverse colectomy in order to identify the best surgical approach. MATERIALS AND METHODS: This was a retrospective cohort study of patients with mid-transverse colon cancer treated with a segmental colon resection or an extended hemicolectomy (right or left) between 2006 and 2016 in 28 high-volume (more than 70 procedures/year) Italian referral centers for colorectal surgery. RESULTS: The study included 1529 patients, 388 of whom underwent a segmental resection while 1141 underwent an extended resection. A higher number of complications has been reported in the segmental group than in the extended group (30.1% versus 23.6%; p 0.010). In 42 cases the main complication was the anastomotic leak (4.4% versus 2.2%; p 0.020). Recovery outcomes also showed statistical differences: time to first flatus (p 0.014), time to first mobilization (p 0.040), and overall hospital stay (p < 0.001) were significantly shorter in the extended group. Even if overall survival were similar between the groups (95.1% versus 97%; p 0.384), 3-year disease-free survival worsened after segmental resection (78.1% versus 86.2%; p 0.001). CONCLUSIONS: According to our results, an extended right colon resection for TCC seems to be surgically safer and more oncologically valid.


Assuntos
Fístula Anastomótica/epidemiologia , Colectomia/métodos , Colo Transverso/cirurgia , Neoplasias do Colo/cirurgia , Tempo de Internação/estatística & dados numéricos , Infecção da Ferida Cirúrgica/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Colo Transverso/patologia , Neoplasias do Colo/patologia , Intervalo Livre de Doença , Feminino , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Taxa de Sobrevida , Fatores de Tempo
12.
Eur Rev Med Pharmacol Sci ; 23(22): 9697-9706, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31799635

RESUMO

There are a number of chemotherapy-effects that should be assessed with liver imaging since they have an influence on surgical morbidity. Chemotherapy-related complications, steatosis, chemotherapy-associated steatohepatitis (CASH), and SOS might impair the hepatic parenchyma, thus reducing the functionality and influencing the outcome following resection. The main role of a radiologist is to provide an accurate diagnosis of the lesion. With constant advances in medicine, a radiologist's role should extend beyond just reporting the data of tumor, providing additional information that may greatly improve patient care. Radiologists should assess both chemotherapy effects on the hepatic metastasis itself, as well as chemo-induced focal and diffuse modifications of non-tumor hepatic parenchyma, since it is important to avoid impaired hepatic function after hepatic resection.


Assuntos
Antineoplásicos/efeitos adversos , Neoplasias Colorretais/diagnóstico , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/secundário , Antineoplásicos/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Humanos , Neoplasias Hepáticas/tratamento farmacológico
13.
Toxicol Lett ; 316: 20-26, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31465813

RESUMO

Health-care personnel handling antineoplastic drugs could be at risk for adverse health effects. We aimed to evaluate genotoxic and cytotoxic effects of antineoplastic drug exposure of personnel preparing and administering such drugs in three Oncology Hospitals in Italy enrolling 42 exposed subjects and 53 controls. Furthermore, we aimed to study the possible influence of XRCC1 and hOGG1 DNA repair genes polymorphisms on genotoxicity induced on buccal cells. We performed workplace and personal monitoring of some drugs and used exposure diary informations to characterize the exposure. Urinary 5-FU metabolite (α-fluoro-ß-alanine) was measured. Buccal Micronucleus Cytome (BMCyt) assay was used to evaluate DNA damage and other cellular anomalies. GEM and 5-FU contamination was found in 68% and 42% of wipe/swab samples respectively. GEM deposition was found on workers' pads while no α-fluoro-ß-alanine was found. BMCyt-assay showed higher genotoxicity and cytotoxicity on nurses administering antineoplastics than on preparators and controls. Among micronucleus (MN) positive (with MN frequency higher than 1.5‰) exposed subjects, the percentage of those carrying XRCC1 mut/het genotype was higher than in MN positive-controls. Using the sensitive BMCyt assay, we demonstrated that handling antineoplastics still represents a potential occupational health risk for workers that should be better trained/informed regarding such risks.


Assuntos
Antineoplásicos/efeitos adversos , Desoxicitidina/análogos & derivados , Monitoramento Ambiental/métodos , Fluoruracila/efeitos adversos , Micronúcleos com Defeito Cromossômico/induzido quimicamente , Testes para Micronúcleos , Mucosa Bucal/efeitos dos fármacos , Recursos Humanos de Enfermagem Hospitalar , Exposição Ocupacional/efeitos adversos , Saúde Ocupacional , Enfermagem Oncológica , Adulto , Antineoplásicos/urina , Biomarcadores/urina , Estudos de Casos e Controles , DNA Glicosilases/genética , Desoxicitidina/efeitos adversos , Desoxicitidina/urina , Feminino , Fluoruracila/urina , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Mucosa Bucal/metabolismo , Exposição Ocupacional/prevenção & controle , Polimorfismo Genético , Medição de Risco , Fatores de Risco , Urinálise , Proteína 1 Complementadora Cruzada de Reparo de Raio-X/genética , Gencitabina
14.
G Chir ; 40(4Supp.): 1-40, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-32003714

RESUMO

Enhanced Recovery After Surgery (ERAS) pathway is a multi-disciplinary, patient-centered protocol relying on the implementation of the best evidence-based perioperative practice. In the field of colorectal surgery, the application of ERAS programs is associated with up to 50% reduction of morbidity rates and up to 2.5 days reduction of postoperative hospital stay. However, widespread adoption of ERAS pathways is still yet to come, mainly because of the lack of proper information and communication. Purpose of this paper is to support the diffusion of ERAS pathways through a critical review of the existing evidence by members of the two national societies dealing with ERAS pathways in Italy, the PeriOperative Italian Society (POIS) and the Associazione Italiana Chirurghi Ospedalieri (ACOI), showing the results of a consensus development conference held at Matera, Italy, during the national ACOI Congress on June 10, 2019.


Assuntos
Cirurgia Colorretal , Consenso , Recuperação Pós-Cirúrgica Melhorada/normas , Sociedades Médicas , Comorbidade , Aconselhamento , Humanos , Itália , Cuidados Pré-Operatórios/métodos
15.
Am J Clin Pathol ; 106(5): 665-9, 1996 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-8929479

RESUMO

A new case of breast tumor with features of eccrine spiradenoma is described. This neoplasm is exceedingly rare, because only two cases, arising in breast parenchima, have been previously reported. The patient was a 43-year-old woman and she experienced three local recurrences at 7, 20, and 30 months from the first excision. No distant metastases were observed. Microscopically, the tumor was circumscribed and showed a lobulated pattern. Neoplastic lobules consisted of packed, monotonous, basaloid epithelial cells with round to ovoid nuclei and scant cytoplasm. At the periphery, the lobules were delimitated by smaller cells with dark nuclei. Immunohistochemical reactivity in tumoral cells was found for both cytokeratin and epithelial membrane antigen; vimentin, muscle-specific actin, glial fibrillary acidic protein, S-100 protein, and carcinoembryonal antigen were all negative. Furthermore, the lesion showed a diffuse positivity for estrogen and progesterone receptors and a high growth fraction labelled by MIB-1 (Ki-67) antibody. These findings, in conjunction with the deep location of the tumor, suggest an origin of the neoplasm from the breast epithelium. Because of a potential local aggressive behavior, the excision of a wide rim of uninvolved breast tissue is recommended.


Assuntos
Adenoma de Glândula Sudorípara/patologia , Neoplasias da Mama/patologia , Neoplasias das Glândulas Sudoríparas/patologia , Adenoma de Glândula Sudorípara/química , Adenoma de Glândula Sudorípara/cirurgia , Adulto , Neoplasias da Mama/química , Neoplasias da Mama/cirurgia , Feminino , Humanos , Imuno-Histoquímica/métodos , Antígeno Ki-67/análise , Recidiva Local de Neoplasia/patologia , Receptores de Estrogênio/análise , Receptores de Progesterona/análise , Neoplasias das Glândulas Sudoríparas/química , Neoplasias das Glândulas Sudoríparas/cirurgia
16.
J Gastrointest Surg ; 5(5): 468-76, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11985997

RESUMO

It is not clear whether chronic hepatitis B or C virus (HBV or HCV) infection is a prognostic factor for hepatocellular carcinoma. We performed this study to determine if chronic HBV or HCV infection had any impact on postresection survival or affected patterns of failure. The records of 77 patients undergoing surgical resection for hepatocellular carcinoma between January 1990 and December 1998 were reviewed. Forty-four patients (57%) had HCV infection, 18 patients (23%) had HBV infection, and 15 patients (20%) had negative serology. There were no differences in age, sex, or tumor size among the groups, and all patients had margin-negative resections. There was a significantly higher incidence of satellitosis and vascular invasion in patients with HCV infection (32% and 41% respectively; P <0.05 vs. other groups). With a median follow-up of 30 months, a significantly decreased local disease-free survival (LDFS) was seen in HBV-positive (5-year LDFS 26%) or HCV-positive (5-year LDFS 38%) patients compared to those with negative serology (5-year LDFS 79%; P <0.05). There was also a trend toward a decreased overall survival in patients with positive hepatitis serology compared to patients with negative serology (37% vs. 79%; P = 0.12). Univariate analysis revealed that only satellitosis was related to local recurrence and overall survival. Patients with positive serology for hepatitis B or C undergoing resection for hepatocellular carcinoma have a trend toward worse overall prognosis and a significantly decreased LDFS when compared to patients with negative serology.


Assuntos
Carcinoma Hepatocelular/mortalidade , Hepatite B Crônica/complicações , Hepatite C Crônica/complicações , Neoplasias Hepáticas/mortalidade , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/cirurgia , Estudos de Casos e Controles , Intervalo Livre de Doença , Feminino , Seguimentos , Humanos , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/epidemiologia , Prognóstico , Estudos Retrospectivos , Análise de Sobrevida , Fatores de Tempo
17.
Eur J Surg Oncol ; 23(3): 215-8, 1997 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-9236894

RESUMO

The surgical approach to differentiated thyroid carcinoma is still controversial, as many authors consider it necessary to remove the whole gland. Therefore, when definitive histological diagnosis is made following limited resection, reoperation and completion thyroidectomy (CT) is sometimes recommended. The main indications are for follicular cancer or for patients with a carcinoma of > or = 1 cm previously treated with lobectomy or limited resection (early CT), or for local recurrence after previous treatment (late CT). Several authors, however, draw attention to the high rate of complications following completion thyroidectomy and advocate its use in more limited circumstances. The aim of the study was to evaluate the results of our experience with CT in the National Cancer Institute in Naples. Of 131 patients treated for thyroid cancer 35 (26.7%) underwent a CT. Re-operation was performed within 6 months in 26 cases (74.3%) and later in the remaining nine cases (25.7%): carcinoma in the residual gland was found in six cases (23%) of early CT, and in four cases (45%) in the late CT group with an overall incidence of 28.5%. Post-operative complications were: transient hypoparathyroidism, two cases (5.6%), permanent in one (2.8%). Transient recurrent laryngeal nerve palsy occurred in three patients (8.5%) and became permanent in one case (2.8%). Completion thyroidectomy can therefore be considered a safe procedure.


Assuntos
Complicações Pós-Operatórias/etiologia , Neoplasias da Glândula Tireoide/cirurgia , Tireoidectomia/efeitos adversos , Adenocarcinoma Folicular/cirurgia , Adolescente , Adulto , Idoso , Carcinoma Papilar/cirurgia , Feminino , Humanos , Incidência , Itália , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasia Residual , Estudos Retrospectivos , Neoplasias da Glândula Tireoide/patologia , Tireoidectomia/métodos
18.
Am J Surg ; 178(6): 592-9, 1999 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-10670879

RESUMO

BACKGROUND: The majority of patients with primary or metastatic malignancies confined to the liver are not candidates for resection because of tumor size, location, multifocality, or inadequate functional hepatic reserve. Cryoablation has become a common treatment in select groups of these patients with unresectable liver tumors. However, hepatic cryoablation is associated with significant morbidity. Radiofrequency ablation (RFA) is a technique that destroys liver tumors in situ by localized application of heat to produce coagulative necrosis. In this study, we compared the complication and early local recurrence rates in patients with unresectable malignant liver tumors treated with either cryoablation or RFA. PATIENTS AND METHODS: Patients with hepatic malignancies were entered into two consecutive prospective, nonrandomized trials. The liver tumors were treated intraoperatively with cryoablation or RFA; intraoperative ultrasonography was used to guide placement of cryoprobes or RFA needles. All patients were followed up postoperatively to assess complications, treatment response, and local recurrence of malignant disease. RESULTS: Cryoablation was performed on 88 tumors in 54 patients, and RFA was used to treat 138 tumors in 92 patients. Treatment-related complications, including 1 postoperative death, occurred in 22 of the 54 patients treated with cryoablation (40.7% complication rate). In contrast, there were no treatment-related deaths and only 3 complications after RFA (3.3% complication rate, P<0.001). With a median follow-up of 15 months in both patient groups, tumor has recurred in 3 of 138 lesions treated with RFA (2.2%), versus 12 of 88 tumors treated with cryoablation (13.6%, P<0.01). CONCLUSIONS: RFA is a safe, well-tolerated treatment for patients with unresectable hepatic malignancies. This study indicates that (1) complications occur much less frequently following RFA of liver tumors compared with cryoablation of liver tumors, and (2) early local tumor recurrence is infrequent following RFA.


Assuntos
Ablação por Cateter , Criocirurgia , Neoplasias Hepáticas/cirurgia , Recidiva Local de Neoplasia/epidemiologia , Algoritmos , Carcinoma Hepatocelular/cirurgia , Ensaios Clínicos como Assunto , Feminino , Humanos , Neoplasias Hepáticas/secundário , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
19.
Pathol Res Pract ; 195(4): 231-6, 1999.
Artigo em Inglês | MEDLINE | ID: mdl-10337660

RESUMO

Ten cases of breast hamartomas were reviewed; the patients' age ranged from 31 to 55 (mean 40.4, median 39). All cases presented with a palpable, sometimes tender, lump. The typical mammographic feature was a well defined, round to lens shaped, variable dense mass, occasionally surrounded by a thin radiolucent zone. All hamartomas were unilateral (4 in the right and 6 in the left breast, respectively) and no recurrence occurred after local excision. The tumor size ranged from 5 to 150 mm (mean 54 mm). Histologically all hamartomas were composed of a typical fibrous, adipose and glandular tissue combination. Immunohistochemically there was a strong positivity for cytokeratin and epithelial membrane antigen in the epithelial cells, a positive finding for vimentin and muscle-specific actin in stromal and myoepithelial cells, and for S-100 protein in myoepithelial cells. Vessels endothelial cells were immunoreactive for Factor VIII. Immunohistochemical analysis of hormone receptors completed on formaldehyde-fixed paraffin-embedded specimens, showed estrogen and progesterone receptors positivity in 9 cases and estrogen positive progesterone negative receptors in one case. In all cases the receptorial positivity was limited to the epithelial elements. These data revealed that 1) breast hamartoma is a benign, tumor-like lesion, histologically dissimilar from other lesions such as fibroadenoma and pseudoangiomatous hyperplasia; and 2) hamartoma tissue is influenced by hormones like the surrounding normal breast parenchyma.


Assuntos
Neoplasias da Mama/metabolismo , Hamartoma/metabolismo , Adulto , Biomarcadores Tumorais/metabolismo , Neoplasias da Mama/patologia , Feminino , Hamartoma/patologia , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Receptores de Estrogênio/metabolismo , Receptores de Progesterona/metabolismo , Estudos Retrospectivos
20.
Tumori ; 85(1 Suppl 1): S43-6, 1999.
Artigo em Italiano | MEDLINE | ID: mdl-10235080

RESUMO

Pancreatic carcinoma is an aggressive disease and its prognosis is dismal. Patients present with an advanced stage of disease and only a small number of patients undergo resection with a curative intent; thus the 5 years survival rate is very low. Several improvements have been made in the surgical approach with a decrease in perioperative morbidity and mortality. Results offered by chemotherapy and radiotherapy remain unsatisfactory despite a number of new drugs and considerable advancements in irradiation techniques. Jaundice, pain and gastrointestinal obstruction are the main clinical problems to be dealt with in advanced patients. Surgical palliation still represents a widely preferred option but non surgical approaches appear promising. The Authors analyse the possible options in palliation for pancreatic carcinoma. The various surgical procedures for biliary by-pass are described. Hepaticojejunostomy is the operation of choice and offers the best results in terms of quality of life and time of palliation. A possible role for resective operation also in advanced cases has been proposed by some groups and is gaining wide acceptance in referral centres where low morbidity and mortality are now routine. Percutaneous and endoscopic approaches to jaundice represent a valid alternative in some patients with a low life expectancy and in those centres with a high experience. Gastrointestinal by-pass in symptom-free patients or advanced cases only is an unsolved dilemma. New approaches such as locoregional chemotherapy with curative or neoadjuvant intent are also described in this paper. Many chemotherapic agents have been tested in various settings and appear to offer promising results in palliation and also, in some cases, in downstaging tumors then amenable to resection. Pain control is a major aspect in management of advanced pancreatic carcinoma. Appropriate pain therapy has to be established in all patients in order to obtain a better quality of life. Various options are available such as intraoperative alcohol injection or CT guided percutaneous splanchnicectomy. Palliation in patients with pancreatic carcinoma is a major aspect of management because of the high percentage of non curable cases; multimodality approach is mandatory and all possible problems have to be dealt with in order to increase survival and, more importantly, quality of life.


Assuntos
Dor Abdominal/cirurgia , Cuidados Paliativos/métodos , Neoplasias Pancreáticas/cirurgia , Dor Abdominal/etiologia , Humanos , Neoplasias Pancreáticas/complicações , Procedimentos Cirúrgicos Operatórios/métodos
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