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1.
Ann Surg Oncol ; 30(6): 3549-3559, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36913044

RESUMO

BACKGROUND: Multimodal treatment for patients with peritoneal metastases (PM) from colorectal cancer (CRC), including perioperative chemotherapy (CT) plus complete resection, is associated with prolonged survival. The oncologic impact of therapeutic delays is unknown. OBJECTIVE: The aim of this study was to assess the survival impact of delaying surgery and CT. METHODS: Medical records from the national BIG RENAPE network database of patients with complete cytoreductive (CC0-1) surgery of synchronous PM from CRC who received at least one neoadjuvant CT cycle plus one adjuvant CT cycle were retrospectively reviewed. The optimal interval between the end of neoadjuvant CT to surgery, surgery to adjuvant CT, and total interval without systemic CT were estimated using Contal and O'Quigley's method plus restricted cubic spline methods. RESULTS: From 2007 to 2019, 227 patients were identified. After a median follow-up of 45.7 months, the median overall survival (OS) and progression-free survival (PFS) was 47.6 and 10.9 months, respectively. The best cut-off period was 42 days in the preoperative interval, no cut-off period was optimal in the postoperative interval, and the best cut-off period in the total interval without CT was 102 days. In multivariate analysis, age, biologic agent use, high peritoneal cancer index, primary T4 or N2 staging, and delay to surgery of more than 42 days (median OS 63 vs. 32.9 months; p = 0.032) were significantly associated with worse OS. Preoperative delay of surgery was also significantly associated with PFS, but only in univariate analysis. CONCLUSION: In selected patients undergoing complete resection plus perioperative CT, a period of more than 6 weeks from completion of neoadjuvant CT to cytoreductive surgery was independently associated with worse OS.


Assuntos
Neoplasias Colorretais , Neoplasias Peritoneais , Humanos , Recém-Nascido , Terapia Neoadjuvante , Neoplasias Peritoneais/patologia , Estudos Retrospectivos , Peritônio/patologia , Terapia Combinada , Neoplasias Colorretais/patologia , Procedimentos Cirúrgicos de Citorredução , Taxa de Sobrevida , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico
2.
Langenbecks Arch Surg ; 407(8): 3377-3386, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36207546

RESUMO

PURPOSE: Fast-track protocols are increasingly used after digestive surgery. After esophagectomy, the gravity and the fear of anastomotic leak may be an obstacle to generalization of such protocols. C-reactive protein (CRP) might be a reliable tool to identify patients at low risk of anastomotic leak after esophagectomy, so that they can be safely included in a fast-track program. The aim of our retrospective bicentric study is to evaluate the interest of C-reactive protein measurement for the early diagnosis of anastomotic leak after esophagectomy. METHODS: Patients having undergone Ivor-Lewis procedure between January 2009 and September 2017 were included in this bicentric retrospective study. CRP values were recorded between postoperative day 3 (POD 3) and postoperative day 5 (POD 5). All postoperative complications were recorded, and the primary endpoint was anastomotic leak. RESULTS: We included 585 patients. Among them, 241 (41.2%) developed infectious complications and 69 patients (11.8%) developed anastomotic leak. CRP had the best predictive value on POD 5 (AUC = 0.74; 95% CI: 0.67-0.81). On POD 5, a cut-off value of 130 mg/L yielded a sensitivity of 87%, a specificity of 51%, and a negative predictive value of 96% for the detection of anastomotic leak. CONCLUSIONS: CRP may help in identifying patients at very low risk of anastomotic leak after esophagectomy. Patients with CRP values < 130 mg/L on POD 5 can safely undertake an enhanced recovery protocol.


Assuntos
Neoplasias Esofágicas , Esofagectomia , Humanos , Esofagectomia/efeitos adversos , Esofagectomia/métodos , Fístula Anastomótica/etiologia , Proteína C-Reativa/metabolismo , Estudos Retrospectivos , Valor Preditivo dos Testes , Neoplasias Esofágicas/cirurgia , Anastomose Cirúrgica/efeitos adversos
3.
N Engl J Med ; 379(25): 2395-2406, 2018 12 20.
Artigo em Inglês | MEDLINE | ID: mdl-30575490

RESUMO

BACKGROUND: Among patients with metastatic pancreatic cancer, combination chemotherapy with fluorouracil, leucovorin, irinotecan, and oxaliplatin (FOLFIRINOX) leads to longer overall survival than gemcitabine therapy. We compared the efficacy and safety of a modified FOLFIRINOX regimen with gemcitabine as adjuvant therapy in patients with resected pancreatic cancer. METHODS: We randomly assigned 493 patients with resected pancreatic ductal adenocarcinoma to receive a modified FOLFIRINOX regimen (oxaliplatin [85 mg per square meter of body-surface area], irinotecan [180 mg per square meter, reduced to 150 mg per square meter after a protocol-specified safety analysis], leucovorin [400 mg per square meter], and fluorouracil [2400 mg per square meter] every 2 weeks) or gemcitabine (1000 mg per square meter on days 1, 8, and 15 every 4 weeks) for 24 weeks. The primary end point was disease-free survival. Secondary end points included overall survival and safety. RESULTS: At a median follow-up of 33.6 months, the median disease-free survival was 21.6 months in the modified-FOLFIRINOX group and 12.8 months in the gemcitabine group (stratified hazard ratio for cancer-related event, second cancer, or death, 0.58; 95% confidence interval [CI], 0.46 to 0.73; P<0.001). The disease-free survival rate at 3 years was 39.7% in the modified-FOLFIRINOX group and 21.4% in the gemcitabine group. The median overall survival was 54.4 months in the modified-FOLFIRINOX group and 35.0 months in the gemcitabine group (stratified hazard ratio for death, 0.64; 95% CI, 0.48 to 0.86; P=0.003). The overall survival rate at 3 years was 63.4% in the modified-FOLFIRINOX group and 48.6% in the gemcitabine group. Adverse events of grade 3 or 4 occurred in 75.9% of the patients in the modified-FOLFIRINOX group and in 52.9% of those in the gemcitabine group. One patient in the gemcitabine group died from toxic effects (interstitial pneumonitis). CONCLUSIONS: Adjuvant therapy with a modified FOLFIRINOX regimen led to significantly longer survival than gemcitabine among patients with resected pancreatic cancer, at the expense of a higher incidence of toxic effects. (Funded by R&D Unicancer and others; ClinicalTrials.gov number, NCT01526135 ; EudraCT number, 2011-002026-52 .).


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Desoxicitidina/análogos & derivados , Fluoruracila/uso terapêutico , Leucovorina/uso terapêutico , Compostos Organometálicos/uso terapêutico , Neoplasias Pancreáticas/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Quimioterapia Adjuvante , Desoxicitidina/efeitos adversos , Desoxicitidina/uso terapêutico , Intervalo Livre de Doença , Combinação de Medicamentos , Feminino , Fluoruracila/efeitos adversos , Humanos , Irinotecano , Leucovorina/efeitos adversos , Doenças Pulmonares Intersticiais/induzido quimicamente , Masculino , Pessoa de Meia-Idade , Compostos Organometálicos/efeitos adversos , Oxaliplatina , Modelos de Riscos Proporcionais , Estudos Prospectivos , Gencitabina
4.
Lancet Oncol ; 21(9): 1147-1154, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32717180

RESUMO

BACKGROUND: Diagnosis and treatment of colorectal peritoneal metastases at an early stage, before the onset of signs, could improve patient survival. We aimed to compare the survival benefit of systematic second-look surgery plus hyperthermic intraperitoneal chemotherapy (HIPEC), with surveillance, in patients at high risk of developing colorectal peritoneal metastases. METHODS: We did an open-label, randomised, phase 3 study in 23 hospitals in France. Eligible patients were aged 18-70 years and had a primary colorectal cancer with synchronous and localised colorectal peritoneal metastases removed during tumour resection, resected ovarian metastases, or a perforated tumour. Patients were randomly assigned (1:1) to surveillance or second-look surgery plus oxaliplatin-HIPEC (oxaliplatin 460 mg/m2, or oxaliplatin 300 mg/m2 plus irinotecan 200 mg/m2, plus intravenous fluorouracil 400 mg/m2), or mitomycin-HIPEC (mitomycin 35 mg/m2) alone in case of neuropathy, after 6 months of adjuvant systemic chemotherapy with no signs of disease recurrence. Randomisation was done via a web-based system, with stratification by treatment centre, nodal status, and risk factors for colorectal peritoneal metastases. Second-look surgery consisted of a complete exploration of the abdominal cavity via xyphopubic incision, and resection of all peritoneal implants if resectable. Surveillance after resection of colorectal cancer was done according to the French Guidelines. The primary outcome was 3-year disease-free survival, defined as the time from randomisation to peritoneal or distant disease recurrence, or death from any cause, whichever occurred first, analysed by intention to treat. Surgical complications were assessed in the second-look surgery group only. This study was registered at ClinicalTrials.gov, NCT01226394. FINDINGS: Between June 11, 2010, and March 31, 2015, 150 patients were recruited and randomly assigned to a treatment group (75 per group). After a median follow-up of 50·8 months (IQR 47·0-54·8), 3-year disease-free survival was 53% (95% CI 41-64) in the surveillance group versus 44% (33-56) in the second-look surgery group (hazard ratio 0·97, 95% CI 0·61-1·56). No treatment-related deaths were reported. 29 (41%) of 71 patients in the second-look surgery group had grade 3-4 complications. The most common grade 3-4 complications were intra-abdominal adverse events (haemorrhage, digestive leakage) in 12 (23%) of 71 patients and haematological adverse events in 13 (18%) of 71 patients. INTERPRETATION: Systematic second-look surgery plus oxaliplatin-HIPEC did not improve disease-free survival compared with standard surveillance. Currently, essential surveillance of patients at high risk of developing colorectal peritoneal metastases appears to be adequate and effective in terms of survival outcomes. FUNDING: French National Cancer Institute.


Assuntos
Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/cirurgia , Neoplasias Peritoneais/tratamento farmacológico , Neoplasias Peritoneais/cirurgia , Adolescente , Adulto , Idoso , Neoplasias Colorretais/patologia , Intervalo Livre de Doença , Feminino , Fluoruracila/administração & dosagem , Humanos , Hipertermia Induzida/métodos , Leucovorina/administração & dosagem , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/patologia , Recidiva Local de Neoplasia/cirurgia , Oxaliplatina/administração & dosagem , Neoplasias Peritoneais/patologia , Neoplasias Peritoneais/secundário , Fatores de Risco , Cirurgia de Second-Look/métodos , Adulto Jovem
5.
Pancreatology ; 19(5): 710-715, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31174978

RESUMO

BACKGROUND: Pancreatoduodenectomy for pancreatic ductal adenocarcinoma (PDAC) with paraaortic lymph nodes metastases (PALN +) is associated with poor survival. Still, there are no current guidelines advocating systematic detection of PALN+. METHODS: All consecutive patients who underwent surgical exploration/resection with concurrent paraaortic (group 16) lymphadenectomy for PDAC between 2009 and 2016 were considered for inclusion. Resection was systematically aborted in case of intraoperative PALN + detection. Diagnostic performance of preoperative imaging upon blind review and intraoperative PALN dissection with frozen section (FS) for PALN detection were evaluated. Additionally, the prognostic significance of PALN + on overall survival (OS) was analyzed. RESULTS: Over the study period, among 129 patients undergoing surgery for PDAC, 113 had intraoperative PALN dissection with FS analysis. Median number of resected PALN was 3 (range, 1-15). Overall, PALN+ was found in 19 patients (16.8%). Upon blind review, preoperative imaging performed poorly for PALN + detection with a low agreement between imaging and final pathology (Kappa-Cohen index<0.2). In contrast, PALN FS showed high detection performances and strong agreement with final pathology (Kappa-Cohen index = 0.783, 95%CI 0.779-0.867, p < 0.001). Regarding survival outcomes, there was no difference between patients with PALN+ and patients not resected in the setting of liver metastases or locally unresectable disease found at exploration (p = 0.708). CONCLUSIONS: Before PD for PDAC, intraoperative PALN dissection and FS analysis yields accurate PALN assessment and allows appropriate patient selection. This should be routinely performed and aborting resection should be strongly considered in case of PALN+.


Assuntos
Carcinoma Ductal Pancreático/diagnóstico , Carcinoma Ductal Pancreático/patologia , Secções Congeladas/métodos , Linfonodos/patologia , Metástase Linfática/diagnóstico , Metástase Linfática/patologia , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Ductal Pancreático/diagnóstico por imagem , Feminino , Humanos , Período Intraoperatório , Estimativa de Kaplan-Meier , Excisão de Linfonodo , Linfonodos/diagnóstico por imagem , Metástase Linfática/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/diagnóstico por imagem , Pancreaticoduodenectomia/métodos , Seleção de Pacientes , Valor Preditivo dos Testes , Prognóstico , Análise de Sobrevida , Resultado do Tratamento
6.
Pancreatology ; 18(6): 666-670, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30153902

RESUMO

BACKGROUND: Surgical resection remains the only curative option for pancreatic adenocarcinoma. Despite recent improvements in medical imaging, unresectability is still often discovered at the time of surgery. It is essential to identify unresectable patients preoperatively to avoid unnecessary surgery. High serum CA 19-9 levels have been suggested as a marker of unresectability but considered inaccurate in patients with hyperbilirubinemia. AIM OF THE STUDY: To evaluate CA 19-9 serum levels as a predictor of unresectability of pancreatic adenocarcinomas with a special focus on jaundiced patients. METHODS: All patients presenting with histologically-confirmed pancreatic adenocarcinoma and having serum CA 19-9 levels available prior to any treatment were included in this retrospective study. The relationship between serum concentrations of CA 19-9 and resectability was studied by regression analysis and theROC curves obtained. A cut-off value of CA 19-9 was calculated. In jaundiced patients, a CA 19-9 adjusted for bilirubinemia was also evaluated. RESULTS: Of the 171 patients included, 49 (29%) were deemed resectable and 122 (71%) unresectable. Altogether, 93 patients (54%) had jaundice. The area under the ROC curve for CA 19-9 as a predictor of resectability was 0.886 (95%CI:[0.832-0.932]); in jaundiced patients it was 0.880 (95% CI [0.798-0.934]. A cut-off in CA 19-9 at 178 UI/mlyielded 85% sensitivity, 81% specificity and 91% positive predictive value for resectability. There was no correlation between the levels of bilirubin and CA 19-9 (r = 0.149). CONCLUSION: Serum CA 19-9 is a good predictive marker of unresectability of pancreatic adenocarcinoma, even in jaundiced patients. CA 19-9 levels over 178 UI/ml strongly suggest unresectable disease.


Assuntos
Adenocarcinoma/sangue , Adenocarcinoma/cirurgia , Antígeno CA-19-9/sangue , Icterícia/complicações , Pancreatectomia , Neoplasias Pancreáticas/sangue , Neoplasias Pancreáticas/cirurgia , Adenocarcinoma/complicações , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/sangue , Feminino , Humanos , Hiperbilirrubinemia/complicações , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/complicações , Valor Preditivo dos Testes , Estudos Retrospectivos , Resultado do Tratamento
7.
Br J Nurs ; 27(16): S20-S28, 2018 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-30187789

RESUMO

Leakage of stomal effluent is considered by people living with a stoma to be the key factor that negatively impacts their quality of life (QoL). This non-randomised pilot study evaluated the performance of a new stoma appliance, Flexima® Active O Convex in 40 ostomy patients with a flat, flush or slightly retracted stoma over a 14-day period. Leakage was reported for the wear time of each pouch by the patients. On 79% of occasions, the patient reported no leakage under the skin protector. The appliance was very well tolerated and the condition of the patients' peristomal skin was maintained throughout the study. The performance was rated as 'good' or 'very good' by most of the patients. The results of this study have shown that the design of this one-piece soft convex appliance can prevent leakage and protect peristomal skin by providing a safe seal around the stoma. It was also reported as being flexible and comfortable to wear.


Assuntos
Colostomia/instrumentação , Ileostomia/instrumentação , Estomas Cirúrgicos , Desenho de Equipamento , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Estudos Prospectivos
8.
Int J Colorectal Dis ; 32(6): 857-863, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28386662

RESUMO

PURPOSE: C-reactive protein and procalcitonin are reliable early predictors of infection after colorectal surgery. However, the inflammatory response is lower after laparoscopy as compared to open surgery. This study analyzed whether a different cutoff value of inflammatory markers should be chosen according to the surgical approach. METHODS: A prospective, observational study included consecutive patients undergoing elective colorectal surgery in three academic centers. All infections until postoperative day (POD) 30 were recorded. The inflammatory markers were analyzed daily until POD 4. Areas under the ROC curve and diagnostic values were calculated in order to assess their accuracy as a predictor of intra-abdominal infection. RESULTS: Five-hundred-one patients were included. The incidence of intra-abdominal infection was 11.8%. The median levels of C-reactive protein (CRP) and procalcitonin (PCT) were lower in the laparoscopy group at each postoperative day (p < 0.0001). In patients without intra-abdominal infection, they were also lower in the laparoscopy group (p = 0.0036) but were not different in patients presenting with intra-abdominal infections (p = 0.3243). In the laparoscopy group, CRP at POD 4 was the most accurate predictor of overall and intra-abdominal infection (AUC = 0.775). With a cutoff of 100 mg/L, it yielded 95.7% negative predictive value, 75% sensitivity, and 70.3% specificity for the detection of intra-abdominal infection. CONCLUSION: The impact of infection on inflammatory markers is more important than that of the surgical approach. Defining a specific cutoff value for early discharge according to the surgical approach is not justified. A patient with CRP values lower than 100 mg/L on POD 4 can be safely discharged.


Assuntos
Biomarcadores/sangue , Cirurgia Colorretal/efeitos adversos , Inflamação/sangue , Infecções Intra-Abdominais/etiologia , Laparoscopia/efeitos adversos , Laparotomia/efeitos adversos , Complicações Pós-Operatórias/etiologia , Idoso , Proteína C-Reativa/metabolismo , Calcitonina/sangue , Feminino , Humanos , Inflamação/patologia , Cuidados Intraoperatórios , Masculino , Pessoa de Meia-Idade , Fatores de Risco
9.
Dig Surg ; 34(3): 177-179, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28132062

RESUMO

BACKGROUND: Choledochoduodenostomy (CD) is an option for treating choledocholithiasis and benign biliary obstruction after failure of endoscopic treatment. Nevertheless, this procedure is rarely performed using a mini-invasive approach because of its technical complexity. Robotic assistance could be a safer approach to overcome such technical issues. METHODS: All consecutive patients who underwent a robot-assisted CD for benign biliary obstruction were included. RESULTS: Between 2012 and 2016, 12 patients were operated on, 7 of whom had a body mass index over 25 (58%) and 7 were ASA class 3 (58%). The median age was 73 years (range 49-93). Median operative time was 140 min (range 105-208) and median blood loss was 90 mL (range 5-500). One patient presented with cholangitis 1 month after surgery (treated medically, Clavien-Dindo grade 2). Median length of stay was 7 days (range 3-8). None of the patients experienced severe morbidity after a median follow-up of 15 months. CONCLUSION: Robot-assisted CD is safe and feasible in benign biliary obstruction.


Assuntos
Coledocostomia/métodos , Colestase/cirurgia , Procedimentos Cirúrgicos Robóticos , Idoso , Idoso de 80 Anos ou mais , Perda Sanguínea Cirúrgica , Coledocostomia/efeitos adversos , Ducto Colédoco , Humanos , Tempo de Internação , Pessoa de Meia-Idade , Duração da Cirurgia , Procedimentos Cirúrgicos Robóticos/efeitos adversos
10.
Ann Surg ; 263(5): 961-6, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26135691

RESUMO

BACKGROUND: Intra-abdominal infections are frequent and life-threatening complications after colorectal surgery. An early detection could diminish their clinical impact and permit safe early discharge. OBJECTIVE: This study aimed to find the most accurate marker for the detection of postoperative intra-abdominal infection and the appropriate moment to measure it. METHODS: A prospective, observational study was conducted in 3 centers. Consecutive patients undergoing elective colorectal surgery with anastomosis were included. C-reactive protein and procalcitonin were measured daily until the fourth postoperative day. Postoperative infections were recorded according to the definitions of the Centres for Diseases Control. The areas under the receiver operating characteristic curve were analyzed and compared to assess the diagnostic accuracy of each marker. RESULTS: Five-hundred and one patients were analyzed. The incidence of intra-abdominal infection was 11.8%, with 24.6% of patients presenting at least one infectious complication. Overall mortality was 1.2%. At the fourth postoperative day, C-reactive protein was more discriminating than procalcitonin for the detection of intra-abdominal infection (areas under the ROC curve: 0.775 vs 0.689, respectively, P = 0.03). Procalcitonin levels showed wide dispersion. For the detection of all infectious complications, C-reactive protein was also significantly more accurate than procalcitonin on the fourth postoperative day (areas under the ROC curve: 0.783 vs 0.671, P = 0.0002). CONCLUSIONS: C-reactive protein is more accurate than procalcitonin for the detection of infectious complications and should be systematically measured at the fourth postoperative day. It is a useful tool to ensure a safe early discharge after elective colorectal surgery.


Assuntos
Biomarcadores/análise , Proteína C-Reativa/análise , Calcitonina/análise , Cirurgia Colorretal , Infecções Intra-Abdominais/diagnóstico , Complicações Pós-Operatórias/diagnóstico , Precursores de Proteínas/análise , Idoso , Peptídeo Relacionado com Gene de Calcitonina , Procedimentos Cirúrgicos Eletivos , Feminino , Humanos , Masculino , Estudos Prospectivos
11.
Int J Colorectal Dis ; 31(9): 1611-7, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27357511

RESUMO

BACKGROUND: Septic complications after colorectal surgery are frequent and sometimes life threatening. It is well known that inflammation impairs the healing process. It has been suggested that preoperative ongoing inflammation could increase the risk of postoperative infections. This study aimed to elucidate the role of preoperative inflammation on postoperative infectious complications and to understand if, through biological markers, it is possible to identify preoperatively patients at higher risk of infection. METHODS: A prospective, observational study was conducted in three centers from November 2011 to April 2014. Consecutive patients undergoing elective colorectal surgery with anastomosis were included. Any ongoing infection was an exclusion criterion. C-reactive protein, albumin, prealbumin, and procalcitonin plasma levels were measured preoperatively. Postoperative infections were recorded according to the definitions of the Centers for Diseases Control. The areas under the receiver operating characteristic curve were analyzed and compared to assess the accuracy of each preoperative marker. RESULTS: Four-hundred and seventy two patients were analyzed. Infectious complications occurred in 118 patients (25 %) and mortality in 6 patients (1.3 %). In the univariate analysis, preoperative C-reactive protein and albuminemia were found significantly associated with postoperative infectious complications (P = 0.008 and P = 0.0002, respectively). Areas under the ROC curve for preoperative C-reactive protein and albuminemia were 0.57and 0.62, respectively. CONCLUSIONS: This study confirms the association between preoperative inflammatory activity, hypoalbuminemia, and the onset of infections after surgery. Trials aiming to decrease the inflammatory activity before surgery in order to prevent postoperative complications are warranted.


Assuntos
Cirurgia Colorretal/efeitos adversos , Doenças Transmissíveis/etiologia , Procedimentos Cirúrgicos Eletivos/efeitos adversos , Inflamação/complicações , Inflamação/patologia , Cuidados Pré-Operatórios , Demografia , Humanos , Morbidade , Fenômenos Fisiológicos da Nutrição , Estudos Prospectivos , Fatores de Risco
12.
Ann Surg Oncol ; 21(5): 1632-40, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24419756

RESUMO

PURPOSE: Bevacizumab plus fluoropyrimidine-based chemotherapy is standard treatment for first-line and second-line metastatic colorectal cancer (mCRC). However, to date, there is no current biomarker predictive for the benefit of bevacizumab use for these patients. Preclinical data suggest that the presence of the primary tumor could be involved in less efficient antitumor activity of antiangiogenic agents, but no clinical data currently support this hypothesis. METHODS: We performed a retrospective analysis of factors associated with overall survival (OS) in a study cohort of 409 mCRC patients. Univariate and multivariate Cox proportional hazard regression models were used to assess the influence of primary tumor resection and bevacizumab use on OS. We evaluated associations linking bevacizumab use and OS among patients who previously underwent or did not undergo primary tumor resection. Results were externally validated in a second independent cohort of 328 mCRC patients. RESULTS: In the study cohort, bevacizumab use and resection of the primary tumor were associated with improved OS. However, subgroup analyses indicate that bevacizumab did not influence survival of patients bearing a primary colorectal tumor (hazard ratio (HR) 0.98, 95 % confidence interval (CI) 0.60-1.61, log-rank test P = 0.6). By contrast, the survival benefit of bevacizumab was restricted to patients who previously underwent primary tumor resection (HR 0.71, 95 % CI 0.55-0.92, P = 0.009). Similar results were observed in the validation cohort. CONCLUSIONS: Addition of bevacizumab to chemotherapy is associated with improvement of OS only in patients with primary tumor resection. These data support the rationale to validate prospectively the influence of primary tumor resection on bevacizumab antitumor effect in synchronous mCRC.


Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Adenocarcinoma/mortalidade , Adenocarcinoma/secundário , Adenocarcinoma/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticorpos Monoclonais Humanizados/administração & dosagem , Bevacizumab , Camptotecina/administração & dosagem , Camptotecina/análogos & derivados , Capecitabina , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/patologia , Neoplasias Colorretais/cirurgia , Terapia Combinada , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/análogos & derivados , Seguimentos , Humanos , Irinotecano , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Estadiamento de Neoplasias , Compostos Organoplatínicos/administração & dosagem , Oxaliplatina , Prognóstico , Estudos Prospectivos , Estudos Retrospectivos , Taxa de Sobrevida
13.
Blood ; 118(16): 4394-400, 2011 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-21876120

RESUMO

Immune thrombocytopenia (ITP) is an autoimmune disease with a complex pathogenesis. As in many B cell-related autoimmune diseases, rituximab (RTX) has been shown to increase platelet counts in some ITP patients. From an immunologic standpoint, the mode of action of RTX and the reasons underlying its limited efficacy have yet to be elucidated. Because splenectomy is a cornerstone treatment of ITP, the immune effect of RTX on this major secondary lymphoid organ was investigated in 18 spleens removed from ITP patients who were treated or not with RTX. Spleens from ITP individuals had follicular hyperplasia consistent with secondary follicles. RTX therapy resulted in complete B-cell depletion in the blood and a significant reduction in splenic B cells, but these patients did not achieve remission. Moreover, whereas the percentage of circulating regulatory T cells (Tregs) was similar to that in controls, splenic Tregs were reduced in ITP patients. Interestingly, the ratio of proinflammatory Th1 cells to suppressive Tregs was increased in the spleens of patients who failed RTX therapy. These results indicate that although B cells are involved in ITP pathogenesis, RTX-induced total B-cell depletion is not correlated with its therapeutic effects, which suggests additional immune-mediated mechanisms of action of this drug.


Assuntos
Anticorpos Monoclonais Murinos/imunologia , Fatores Imunológicos/imunologia , Púrpura Trombocitopênica Idiopática/tratamento farmacológico , Baço/efeitos dos fármacos , Adulto , Idoso , Anticorpos Monoclonais Murinos/uso terapêutico , Linfócitos B/efeitos dos fármacos , Linfócitos B/imunologia , Feminino , Humanos , Fatores Imunológicos/uso terapêutico , Masculino , Pessoa de Meia-Idade , Púrpura Trombocitopênica Idiopática/imunologia , Rituximab , Baço/citologia , Linfócitos T Reguladores/efeitos dos fármacos , Linfócitos T Reguladores/imunologia , Células Th1/efeitos dos fármacos , Células Th1/imunologia
14.
Front Endocrinol (Lausanne) ; 14: 1125772, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37234805

RESUMO

Insulinomas, with an incidence of 4 cases per million individuals per year, remain amongst the most frequent functional neuroendocrine tumors. The usual diameter of insulinomas usually remains under 3 cm of major axis. However, 44 exceptional cases of "giant insulinomas", have been reported worldwide, generally exceeding 9 cm in major axis. In this article, we report the case of a 38-year-old woman whom suffered from chronic hypoglycemia despite treatment with diazoxide. Abdominal CT-scan revealed a 88 x 73 mm mass located at the tail of the pancreas. Following surgical excision, histopathological analysis confirmed G1 neuroendocrine tumor, with focal cytoplasmic expression of insulin in tumor cells. After a 16-month follow-up period, the patient didn't address any specific complaint, and no disease recurrence and/or metastasis were observed. A 68Ga-DOTATATE-PET scan was performed 6 months after surgery, which came back normal. Genetic evaluation has not been performed in our patient. The physiopathology of giant insulinomas remain unexplained, however with possible relationship with type 1 multiple endocrine neoplasia, sporadic somatic YY1 mutations and possible transformation of bulky non-functional pancreatic neuroendocrine tumors to a functional phenotype, with slow insulin secretion. While giant insulinomas remain rare in the literature, multicentric genetic analysis of tumor samples might reveal unique features of this rare subtype of neuroendocrine pancreatic tumors. Insulinomas of large size tend to have greater malignancy and higher rates of invasiveness. Careful follow-up, especially for liver and lymph node metastases, must be performed using functional imaging techniques to avoid disease relapse.


Assuntos
Hipoglicemia , Insulinoma , Tumores Neuroendócrinos , Neoplasias Pancreáticas , Humanos , Insulinoma/complicações , Insulinoma/cirurgia , Insulinoma/patologia , Recidiva Local de Neoplasia/complicações , Neoplasias Pancreáticas/complicações , Neoplasias Pancreáticas/cirurgia , Neoplasias Pancreáticas/patologia , Hipoglicemia/etiologia , Tumores Neuroendócrinos/patologia
15.
Ann Surg ; 256(6): 1084-8, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22634898

RESUMO

BACKGROUND: Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC) achieve good results in selected patients with peritoneal carcinomatosis. High intra-abdominal pressure could enhance the penetration of chemotherapy drugs. The aim of this study was to compare the effects of high pressure and hyperthermia when used separately and when combined in terms of blood and tissue absorption of oxaliplatin in a swine model of intraperitoneal chemotherapy. METHODS: Four groups of 5 pigs each underwent laparotomy and open intraperitoneal chemotherapy with oxaliplatin at a constant concentration (150 mg/L) for 30 minutes in normothermia and atmospheric pressure (group 1), or hyperthermia (42°C) and atmospheric pressure (group 2), or normothermia and high pressure (25 cm H2O) (group 3), or hyperthermia and high pressure (group 4). High pressure was achieved thorough a water column over the abdomen. Systemic absorption and abdominal tissue mapping of the penetration of oxaliplatin in each group were studied. RESULTS: Blood concentrations of oxaliplatin were similar in the different groups. Hyperthermia achieved higher concentrations in visceral surfaces (P = 0.0014), but not in parietal surfaces. High pressure enhanced diffusion of the drug in both the visceral and parietal peritoneum (P = 0.0058 and P = 0.0044, respectively). The combination of hyperthermia and high pressure significantly increased the penetration of oxaliplatin and achieved the highest tissue concentrations (10.39 mg/kg vs 5.48 mg/kg; P = 0.00001 in the visceral peritoneum, and 66.16 mg/kg vs 35.62 mg/kg; P = 0.0003 in the parietal peritoneum). CONCLUSIONS: Open high-pressure HIPEC with oxaliplatin is feasible in the pig. Hyperthermia enhances diffusion in the visceral peritoneum, whereas high pressure is effective in the visceral and parietal peritoneum. The combination of the two achieves the highest tissue concentrations of oxaliplatin.


Assuntos
Antineoplásicos/administração & dosagem , Hipertermia Induzida , Compostos Organoplatínicos/administração & dosagem , Neoplasias Peritoneais/tratamento farmacológico , Animais , Quimioterapia do Câncer por Perfusão Regional/métodos , Terapia Combinada , Feminino , Oxaliplatina , Peritônio , Pressão , Suínos
17.
Ann Surg Oncol ; 18(8): 2297-301, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21311981

RESUMO

BACKGROUND: Cytoreductive surgery (CRS) and heated intraperitoneal chemotherapy (HIPEC) can improve survival in selected patients with primary or secondary peritoneal malignancies. With the opportunity for long-term survival, questions about the impact of those procedures in fertility in women of childbearing age can be raised. MATERIALS AND METHODS: An international survey was performed among all teams participating in the International Peritoneal Surface Malignancy Group in order to collect data about pregnancies and their outcome in women having undergone previous CRS with adjuvant HIPEC. RESULTS: There were 7 pregnancies reported after CRS and HIPEC in women treated for peritoneal malignancies. All these women conceived spontaneously, most of them within 2 years after the procedure. They delivered most often by vaginal way after an uneventful pregnancy. Their newborns were healthy, except 1 case of congenital diaphragmatic hernia requiring emergent surgery. There were 2 additional uneventful pregnancies reported after the diagnosis of pseudomyxoma peritonei and before CRS and HIPEC, with the support of the medical team. Another woman having undergone oocytes retrieval and embryo cryopreservation prior to the surgery was mother of twins after the procedure via a surrogate mother. CONCLUSION: Childbearing after cytoreductive surgery and heated intraperitoneal chemotherapy is possible in women conserving their genital organs after the procedure. The question of fertility should be considered and discussed in women in reproductive age prior to cytoreductive surgery and heated intraperitoneal chemotherapy. Different options could be offered in this setting. Multidisciplinary decision making involving surgical oncologists and fertility specialists is important.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Quimioterapia do Câncer por Perfusão Regional , Hipertermia Induzida , Neoplasias Peritoneais/terapia , Adolescente , Adulto , Cisplatino/administração & dosagem , Terapia Combinada , Feminino , Seguimentos , Humanos , Agências Internacionais , Mitomicina/administração & dosagem , Neoplasias Peritoneais/tratamento farmacológico , Neoplasias Peritoneais/cirurgia , Gravidez , Complicações Neoplásicas na Gravidez/tratamento farmacológico , Complicações Neoplásicas na Gravidez/patologia , Complicações Neoplásicas na Gravidez/cirurgia , Inquéritos e Questionários , Taxa de Sobrevida , Resultado do Tratamento , Adulto Jovem
19.
World J Surg ; 35(7): 1621-5, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21562868

RESUMO

BACKGROUND: The frequency, characteristics, and effect on outcome of abdominal and pelvic injuries (API) caused by road traffic accidents are not well known. We studied them in a well-defined geographical area in France. METHODS: The medical data of all hospitalized victims of road traffic accidents that occurred over a 3-year period were recorded. Injuries were coded according to the Abbreviated Injury Scale (AIS). The Injury Severity Score (ISS) was calculated. Continuous and qualitative variables were described by means and standard deviations or medians and percentages, respectively. Proportions and means were compared using the χ2 and Student tests, respectively. RESULTS: Of 6,977 victims of road traffic accidents, 2,009 were hospitalized (mean ISS=7.9). API were present in 9.3% (n=186) of all hospitalized victims and in 32.2% (n=82) of the most severely injured (ISS≥16, n=255) hospitalized victims. The most frequently seriously injured abdominopelvic organs (AIS≥3) were the spleen, the retroperitoneal organs, and the liver. The mean ISS and the mortality rate were significantly higher for victims with API than those without API (17.5 vs. 6.9, P<0.001; 9.7% vs. 1.9%, P<0.001). In multivariate analysis, the presence of severe API increased the mortality rate by a factor of 2.5. CONCLUSIONS: In this study, API were present in one third of the most severely injured victims of road traffic accidents and were a significant factor of gravity and mortality. This study, conducted in France where there is no National Trauma Registry, underlined the need for establishing such registry.


Assuntos
Traumatismos Abdominais/epidemiologia , Acidentes de Trânsito/estatística & dados numéricos , Pelve/lesões , Adulto , Feminino , França/epidemiologia , Humanos , Masculino
20.
Surg Obes Relat Dis ; 17(3): 575-584, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33262031

RESUMO

BACKGROUND: Anthropometric data as prognostic factors of colorectal cancer are promising but contradictory. The aim of this study was to assess the preoperative body composition profiles as predictive factors for postoperative, oncologic, and inflammation outcomes. OBJECTIVES: We sought to assess the impact of body composition profiles on short- and long-term outcomes and on postoperative inflammatory response in a clinical setting for patients following curative intent surgery for colorectal cancer. SETTING: University hopsital METHODS: We analyzed 122 patients from a prospective cohort (IMACORS) with colorectal cancer undergoing curative-intent surgery from 2011 to 2014. Musculature, total, visceral, and subcutaneous adiposity were measured from a preoperative CT scan and outcomes were compared between profiles. RESULTS: Preoperative myopenia was an independent predictive factor of recurrence (HR = 3.3 95% CI = 1.6-6.9; P = .002) while subcutaneous adiposity was a protective factor (HR = .4 95% CI = .2-.9; P = .03). No anthropometric measurement was predictive of overall survival and postoperative intra abdominal infection was not determined by body composition profiles. Preoperative and D4 CRP levels were significantly higher in patients with subcutaneous adiposity. CONCLUSIONS: Myopenia and subcutaneous adiposity seemed to have independent and opposite prognostic effects on recurrence. Muscle mass loss may represent a modifiable risk factor while the amount of subcutaneous adipose tissue reflects an energetic storage favorable to face this pathologic process.


Assuntos
Neoplasias Colorretais , Infecções Intra-Abdominais , Composição Corporal , Índice de Massa Corporal , Neoplasias Colorretais/cirurgia , Humanos , Gordura Intra-Abdominal , Recidiva Local de Neoplasia , Prognóstico , Estudos Prospectivos
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