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1.
Ann Chir Plast Esthet ; 60(1): 26-34, 2015 Feb.
Artigo em Francês | MEDLINE | ID: mdl-25245542

RESUMO

BACKGROUND: Obesity is one of the health issues that is recently worldwide increasing, as well as in France. Variety of procedures of bariatric surgery have been developed over the past decade and are performed for morbid obesity hence. The demand of plastic surgery increased for body contouring and reshaping after dramatic weight loss, in which the abdominoplasty is considered as one of the most common procedures. The purpose of this study is to clarify the differences between the post-bariatric patients and others, and their influence on the occurrence of complications following abdominoplasty. PATIENTS AND METHODS: Retrospective study involving a group of post-abdominoplasty patients collected from the same center between January 2000 and December 2010. RESULTS: Among 238 reviewed patients' files; 114 of them are post-bariatric patients, and 124 are non-bariatric patients. Several differences were found between these two groups of patients including the maximum BMI, BMI at the time of surgery, the rates of cardiovascular risk factors, and a longer operative time in the post-bariatric group. The complication rate in these patients was significantly higher (55.3% against 26.6%) with mainly healing problems. Major maximum weight, obesity at the time of surgery, long operative time and postoperative drainage system are all considered as risk factors, which carry high rate of complications. CONCLUSION: It appears that abdominoplasty in post-bariatric patients requires specific care because of particularities inherent in this population.


Assuntos
Abdominoplastia/efeitos adversos , Cirurgia Bariátrica , Adulto , Índice de Massa Corporal , Feminino , Humanos , Masculino , Duração da Cirurgia , Complicações Pós-Operatórias , Estudos Retrospectivos , Fatores de Risco
2.
Surg Radiol Anat ; 36(1): 91-4, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23652481

RESUMO

We report a new variation of the left hepatic artery arising from the superior mesenteric artery. The variant was discovered during radiological examinations in a patient presenting with ruptured hepatocellular carcinoma of the left liver lobe. Anatomical description was based on CT-scan and angiographic analysis. When present the left hepatic artery originates from the left gastric artery, with an incidence of 12-34 %. Knowledge of left hepatic artery anatomy is mandatory to optimize surgical and radiological management in complex clinical situations.


Assuntos
Artéria Hepática/anatomia & histologia , Artérias Mesentéricas/anatomia & histologia , Variação Anatômica , Artéria Hepática/diagnóstico por imagem , Humanos , Masculino , Artérias Mesentéricas/diagnóstico por imagem , Pessoa de Meia-Idade , Radiografia
3.
J Surg Oncol ; 105(8): 761-6, 2012 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-22124932

RESUMO

BACKGROUND AND OBJECTIVES: Definitive chemoradiotherapy (CRT) is considered curative intent treatment for locally advanced esophageal squamous cell carcinoma. Data concerning the usefulness of definitive CRT in patients with esophageal adenocarcinoma (ADC) are lacking. The aim of the study was to compare the results of definitive CRT versus surgery in patients with an ADC. METHODS: All consecutive patients with a non-metastatic ADC treated between 1994 and 2008 were retrospectively assessed. Patients were divided into two groups: surgery group (±pre-operative treatment) versus definitive CRT group. RESULTS: In surgery and definitive CRT groups, 67 and 79 patients were evaluated, respectively. A complete resection was achieved in 92.5% of patients in surgery group and a clinical complete response was observed in 49.4% of patients in definitive CRT group. Overall survival was 36.2 ± 2.0 months in surgery group versus 16.5 ± 0.8 months in definitive CRT group (P = 0.02). The predictive factors of survival were age (P < 0.01), stage (P = 0.04), WHO performance status (P < 0.01), initial weight loss (P < 0.01), and the treatment group (P < 0.01). CONCLUSIONS: The results of the study do not support definitive CRT as an alternative to surgery in esophageal ADC treatment. Definitive CRT should be reserved for patients with a major operative risk.


Assuntos
Adenocarcinoma/terapia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Esofágicas/terapia , Recidiva Local de Neoplasia/terapia , Adenocarcinoma/mortalidade , Adenocarcinoma/secundário , Idoso , Cisplatino/administração & dosagem , Terapia Combinada , Neoplasias Esofágicas/mortalidade , Neoplasias Esofágicas/patologia , Feminino , Fluoruracila/administração & dosagem , Seguimentos , Humanos , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/mortalidade , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida
4.
Clin Anat ; 25(5): 663-7, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21976395

RESUMO

Internal hernia of the supravesical fossa is an unusual cause of small bowel obstruction. We report the case of a patient without previous abdominal surgery with an acute abdominal obstruction in which laparoscopic exploration revealed a strangulated internal supravesical hernia. To help clinicians with their pre-operative diagnosis and to better understand the clinical management of this unusual internal hernia, a description of the anatomy of the supravesical fossa is included in this case report.


Assuntos
Hérnia Abdominal/complicações , Doenças do Íleo/etiologia , Obstrução Intestinal/etiologia , Idoso , Hérnia Abdominal/diagnóstico por imagem , Humanos , Doenças do Íleo/cirurgia , Obstrução Intestinal/cirurgia , Laparoscopia , Masculino , Tomografia Computadorizada por Raios X , Resultado do Tratamento
5.
Gastroenterol Clin Biol ; 34(4-5): 321-4, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20537477

RESUMO

Desmoplastic small round cell tumor (DSRCT) is a very rare but aggressive malignancy. It is usually observed in males during adolescent and early adulthood. The tumor primarily affects the intra-abdominal serosal and is characterized by distinctive histological and immunophenotypic features and by the specific reciprocal translocation EWS-WT1. Prognosis is mainly poor with a mean survival approximately of 2.5 years. However, long-term survivals have been reported using aggressive multimodal therapy based on complete surgical excision, systemic chemotherapy and radiotherapy. The addition of hyperthermic intraperitoneal chemotherapy in the multimodal approach has been reported in very few cases but no effect on survival has been clearly demonstrated. We report a case of a 51-year old adult patient presenting with a DSRCT treated with aggressive therapy based on systemic chemotherapy, complete cytoreductive surgery associated with hyperthermic intraperitoneal chemotherapy, resulting in a long term survival of 4 years.


Assuntos
Neoplasias Peritoneais/patologia , Sarcoma/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Quimioterapia Adjuvante , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Primárias Múltiplas/diagnóstico , Neoplasias Primárias Múltiplas/terapia , Neoplasias Peritoneais/terapia , Sarcoma/terapia
6.
Eur J Clin Nutr ; 62(8): 1022-30, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17671446

RESUMO

BACKGROUND AND OBJECTIVES: Long term evaluation of bariatric surgery must include quality of life measurement. METHODS: Quality of life (QoL) was evaluated using the original Moorehead-Ardelt questionnaire for 200 patients operated for massive obesity in a single centre between 1994 and 2003. QoL and physical data were obtained by retrospective mail questionnaire. Surgical procedures were vertical-banded gastroplasty according to Mason (VBGM) and adjustable gastric banding (AGB) in 61 and 39% of patients, respectively. The aim of the study was to assess the nutritional outcome and QoL according to the procedure. RESULTS: Overall, the body mass index (BMI) decreased from 50+/-8 kg/m(2) before surgery to 35.2+/-7.5 kg/m(2) at the time of the questionnaire. The percentage of weight loss was 28.8+/-12.2%. In the group treated with VBGM, the mean initial weight (P=0.003) and the percentage of weight loss (P<0.001) were significantly higher, and the QoL was better (P=0.003) than in the group treated with AGB. On the basis of the time spent since surgery, a regular weight loss was observed during the first 5 years, whereas weight subsequently increased over the five following years. Similarly, the total QoL score gradually improved during the first 5 years and worsened thereafter. However, it remained better than before surgery. A linear regression analysis showed a positive correlation between the percentage of weight loss and the QoL score (P<0.001). CONCLUSIONS: This study suggests that the bariatric surgery, particularly the VBGM technique, improved the QoL of obese patients, at least in the first 5 years following surgery.


Assuntos
Gastroplastia/métodos , Obesidade Mórbida/psicologia , Obesidade Mórbida/cirurgia , Qualidade de Vida , Redução de Peso , Adulto , Índice de Massa Corporal , Feminino , Seguimentos , Gastroplastia/efeitos adversos , Gastroplastia/psicologia , Humanos , Masculino , Estudos Retrospectivos , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento
7.
J Radiol ; 89(11 Pt 1): 1721-8, 2008 Nov.
Artigo em Francês | MEDLINE | ID: mdl-19106828

RESUMO

PURPOSE: Sleeve gastrectomy is a new bariatric surgical procedure with promising early results and low morbidity and mortality. We have evaluated the early imaging findings and value of upper GI study (UGI) and CT. PATIENTS AND METHODS: Twenty five patients (mean age=38.9 years, mean BMI=51.5 kg/m2) following sleeve gastrectomy for morbid obesity underwent UGI at day 1. CT was immediately performed in patients with suspected leak or as a follow-up examinations in patients with suspected complication. The different imaging features observed were recorded. RESULTS: UGI demonstrated 13 normal examinations (52%), an abnormal appearance in 11 cases (44%) with opacification of a lateral pouch, and one complication (leak confirmed on CT). Two patients underweent CT (day 3 and day 15) for suspected complication, with demonstration of leak in both cases. CONCLUSION: An abnormal appearance after sleeve gastrectomy is frequently observed on UGI. Routine UGI at day 1 is useful to detect large leaks. CT with oral contrast should be performed in all patients with imaging or clinical suspicion of leak.


Assuntos
Gastrectomia/métodos , Estômago/diagnóstico por imagem , Estômago/cirurgia , Tomografia Computadorizada por Raios X , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Tempo , Adulto Jovem
8.
J Med Genet ; 43(2): 138-42, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-15831593

RESUMO

We report the association of CDH1/E-cadherin mutations with cleft lip, with or without cleft palate (CLP), in two families with hereditary diffuse gastric cancer (HDGC). In each family, the CDH1 mutation was a splicing mutation generating aberrant transcripts with an in-frame deletion, removing the extracellular cadherin repeat domains involved in cell-cell adhesion. Such transcripts might encode mutant proteins with trans-dominant negative effects. We found that CDH1 is highly expressed at 4 and 5 weeks in the frontonasal prominence, and at 6 weeks in the lateral and medial nasal prominences of human embryos, and is therefore expressed during the critical stages of lip and palate development. These findings suggest that alteration of the E-cadherin pathway can contribute to human clefting.


Assuntos
Caderinas/genética , Fenda Labial/genética , Fissura Palatina/genética , Mutação/genética , Neoplasias Gástricas/genética , Adulto , Análise Mutacional de DNA , Perfilação da Expressão Gênica , Humanos , Linhagem
9.
J Chir (Paris) ; 144(2): 153-5, 2007.
Artigo em Francês | MEDLINE | ID: mdl-17607236

RESUMO

The authors report a case of a complete pancreatic neck rupture treated by conservative surgery. A pancreatic neck rupture was diagnosed on a CT scan performed 24 hours after an abdominal blunt trauma. The patient was treated by suture of the cephalic remnant and Roux-en-Y pancreaticojejunostomy on the left remnant. Postoperative course was uneventful and the patient did not develop diabetes with a 18-month follow-up. This conservative technique, rarely used for complete pancreatic neck rupture, allows preservation of the pancreatic endocrine function.


Assuntos
Pâncreas/lesões , Pancreaticojejunostomia/métodos , Traumatismos Abdominais/complicações , Adulto , Anastomose em-Y de Roux/métodos , Seguimentos , Humanos , Laparotomia , Masculino , Pâncreas/cirurgia , Ruptura , Técnicas de Sutura , Ferimentos não Penetrantes/complicações
10.
Chirurgia (Bucur) ; 102(4): 421-8, 2007.
Artigo em Ro | MEDLINE | ID: mdl-17966939

RESUMO

OBJECTIVE: To present the principles of laparoscopic treatment for rectal endometriosis and to discuss possible postoperative outcomes. MATERIAL AND METHODS: Our series included women managed for rectal endometriosis during consecutive 20 months in the Department of Gynecology and Obstetrics, Rouen University Hospital, Rouen--France. Patient's characteristics, symptoms, imaging examination results, surgical treatment and postoperative outcomes were all evaluated retrospectively. RESULTS: Sixteen patients presenting with rectal endometriosis were managed surgically, (mean age was 35.9 +/- 6.5 years). All women presented at least one severe painful symptom which was typical of a digestive involvement in 12 cases. MRI results suggested a rectal involvement in 14 cases, and endorectal ultrasound examination clearly showed rectal wall infiltration in all patients. The gynaecological stage of surgical treatment was carried out laparoscopically in 13 cases, and the digestive surgical stage in 7 cases. Two limited and 14 segmental rectal resections were performed. Transitory stoma was carried out in 9 women. The length of the surgical procedure depended on the number of endometriosis localizations with a median value of 6 h 30 min. Postoperative complications occurred in 6 women: 2 anastomosis stenosis, 1 anastomosis fistula, 1 abscess of the parietal wall and 1 bladder atonia. Complains of pain were completely or significantly improved in all cases. CONCLUSION: Surgical treatment for rectal endometriosis may be carried out laparoscopically. It should be reserved for women presenting with severe painful condition and may contribute to significant improvement. However, the balance of benefit and risks must also be assessed on a case to case basis prior to any decision for or against surgical treatment.


Assuntos
Endometriose/cirurgia , Laparoscopia , Doenças Retais/cirurgia , Adulto , Endometriose/diagnóstico , Feminino , Humanos , Pessoa de Meia-Idade , Doenças Retais/diagnóstico , Estudos Retrospectivos , Resultado do Tratamento
12.
J Gynecol Obstet Biol Reprod (Paris) ; 35(2): 186-90, 2006 Apr.
Artigo em Francês | MEDLINE | ID: mdl-16575366

RESUMO

Cancer arising in abdominal wall endometriosis is a rare event, hindering diagnosis and making management uncertain. A cesarean section scar is generally at the origin of the disease. We report the case of a 45-year-old woman, with a past medical history of cesarean deliveries, complaining of a repeat abdominal wall endometriosis which transformed into a clear-cell carcinoma. Outcome was rapidly fatal. Compared with endometriosis-associated ovarian carcinoma, the prognosis of this abdominal scar complication is poor. In the literature, survival rate reaches only 57% after a short follow-up of 20 months. Clear-cell carcinoma is the most common histological subtype, followed by endometrioid carcinoma. Radical surgery is the main treatment. Good technique and proper care during cesarean section may help in preventing this endometriosis complication.


Assuntos
Neoplasias Abdominais/etiologia , Parede Abdominal , Endometriose/complicações , Neoplasias Abdominais/cirurgia , Adenoma/etiologia , Adenoma/cirurgia , Transformação Celular Neoplásica , Cesárea/efeitos adversos , Cicatriz/complicações , Feminino , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Prognóstico
13.
Cancer Res ; 55(9): 1839-41, 1995 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-7728749

RESUMO

The hMLH1 protein, composed of 756 amino acids, is the human homologue of the bacterial DNA mismatch repair protein MutL, and germ line mutations of the hMLH1 gene have been identified in kindreds with hereditary nonpolyposis colorectal cancer. We have detected three alternatively spliced forms of hMLH1 mRNA in normal lymphocytes and tissues. One of the spliced forms lacks the coding region of hMLH1 from codons 227 to 295 and the two other transcripts are predicted to encode two truncated proteins retaining the 264 and 226 N-terminal amino acids of hMLH1, respectively. The biological significance of this alternative splicing remains to be established.


Assuntos
Processamento Alternativo/fisiologia , Proteínas de Neoplasias/genética , RNA Mensageiro/genética , Proteínas Adaptadoras de Transdução de Sinal , Sequência de Aminoácidos , Sequência de Bases , Proteínas de Transporte , Células Cultivadas , Códon , DNA Complementar/genética , Expressão Gênica , Humanos , Linfócitos/metabolismo , Dados de Sequência Molecular , Proteína 1 Homóloga a MutL , Proteínas Nucleares , Reação em Cadeia da Polimerase , Transcrição Gênica
14.
Mol Immunol ; 34(10): 735-41, 1997 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-9430201

RESUMO

Human myoblasts express immunological properties in vitro and we have previously reported that they produce Complement (C) components of the alternative pathway. Myoblasts activate the classical pathway but are fully protected against C attack by the expression of major C regulators. In order to fully understand the relationship between myoblasts and C, we here report the biosynthesis of C components of the classical pathway by skeletal muscle cells. Human myoblasts in vitro produced C1q, C1r, C1s, C2 and C4 constitutively and all syntheses were upregulated after stimulation with IFN-gamma. We suggest that human myoblasts may constitute a local source of C and therefore C could be implicated in inflammatory or physiopathological processes developed in skeletal muscle.


Assuntos
Via Clássica do Complemento/imunologia , Proteínas do Sistema Complemento/metabolismo , Músculo Esquelético/imunologia , Músculo Esquelético/metabolismo , Western Blotting , Células Cultivadas , Complemento C1q/genética , Complemento C1q/imunologia , Complemento C1q/metabolismo , Complemento C1r/genética , Complemento C1r/imunologia , Complemento C1r/metabolismo , Complemento C1s/genética , Complemento C1s/imunologia , Complemento C1s/metabolismo , Complemento C2/genética , Complemento C2/imunologia , Complemento C2/metabolismo , Complemento C4/genética , Complemento C4/imunologia , Complemento C4/metabolismo , Proteínas do Sistema Complemento/genética , Proteínas do Sistema Complemento/imunologia , Primers do DNA/genética , DNA Complementar/genética , Humanos , Inflamação/imunologia , Inflamação/metabolismo , Interferon gama/imunologia , Interferon gama/farmacologia , Músculo Esquelético/citologia , Reação em Cadeia da Polimerase , Testes de Precipitina , RNA/genética , RNA Mensageiro/metabolismo
16.
Neurochirurgie ; 51(3-4 Pt 1): 190-2, 2005 Sep.
Artigo em Francês | MEDLINE | ID: mdl-16389906

RESUMO

Ventriculoperitoneal shunt is used as a treatment of hydrocephalus. Although this procedure is usually safe, several abdominal complications have been reported in the literature. However, to our knowledge, a catheter-induced splenic trauma has not been previously described. We report here the case of a patient who presented with a spontaneous splenic trauma, 10 years after ventriculoperitoneal shunt insertion. A conservative treatment with careful monitoring was successful and the patient recovered without surgery.


Assuntos
Baço/lesões , Derivação Ventriculoperitoneal/efeitos adversos , Adulto , Feminino , Humanos , Hidrocefalia/cirurgia , Baço/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Resultado do Tratamento
17.
FEBS Lett ; 315(2): 159-62, 1993 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-8417972

RESUMO

The serum level of IL-6 and expression of IL-6 mRNA in hepatocytes from regenerating liver were investigated in the rat. The IL-6 level in the serum was not significantly different from that of a control group of rats submitted to an acute experimental inflammation. IL-6 mRNA expression did not occur in the liver of hepatectomized rats as judged from Northern blotting experiments using an IL-6 riboprobe. These results suggest that if IL-6 is implicated in hepatic regeneration, this cytokine is not produced by the regenerating liver and must be delivered exogenously to the liver to modulate hepatic regeneration.


Assuntos
Interleucina-6/genética , Regeneração Hepática , Fígado/fisiologia , Animais , Expressão Gênica , Masculino , RNA Mensageiro/genética , Ratos , Ratos Sprague-Dawley , Terebintina/farmacologia
18.
Shock ; 15(4): 261-71, 2001 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11303724

RESUMO

This prospective study investigated the role of reduced hepatic synthesis of regulating proteins in coagulopathy after partial hepatectomy (PH) compared with major abdominal surgery (MAS) without involvement of the liver. Furthermore, we studied the effect of rBPI21, an endotoxin-neutralizing agent, on coagulopathy after PH was studied. Compared with MAS, PH resulted in significantly elevated levels of thrombin-antithrombin-III and plasmin-alpha2-antiplasmin complexes. Levels of antithrombin-3, alpha2-antiplasmin, fibrinogen, plasminogen, alpha2-macroglobulin (alpha2-M), and C1-inhibitor remained lower following PH. Treatment with rBPI21 led to significantly lower levels of tissue-type plasminogen activator (t-PA). Post-operative disseminated intravascular coagulation (DIC) was associated with significantly higher bilirubin and t-PA plasma levels and significantly lower levels of alpha2-M. This study indicates that PH induced hepatic failure results in decreased synthesis of hepatic regulating plasma proteins and subsequent activation of coagulation and fibrinolysis. Prevention of t-PA release by rBPI21 may have important clinical implications. Decreased availability of alpha2-M may be a factor in post-operative DIC.


Assuntos
Fatores de Coagulação Sanguínea/biossíntese , Coagulação Intravascular Disseminada/etiologia , Endotoxemia/etiologia , Hepatectomia/efeitos adversos , Fígado/metabolismo , Proteínas de Membrana/uso terapêutico , Abdome/cirurgia , Adulto , Idoso , Antitrombina III/análise , Translocação Bacteriana , Bilirrubina/sangue , Biomarcadores/sangue , Comorbidade , Proteínas Inativadoras do Complemento 1/análise , Coagulação Intravascular Disseminada/metabolismo , Coagulação Intravascular Disseminada/prevenção & controle , Método Duplo-Cego , Endotoxemia/metabolismo , Endotoxinas/antagonistas & inibidores , Feminino , Fibrinogênio/análise , Fibrinólise , Neoplasias Gastrointestinais/sangue , Neoplasias Gastrointestinais/cirurgia , Humanos , Imunoglobulina G/sangue , Interleucina-6/sangue , Células de Kupffer/metabolismo , Hepatopatias/sangue , Hepatopatias/cirurgia , Falência Hepática/sangue , Falência Hepática/etiologia , Masculino , Proteínas de Membrana/farmacologia , Pessoa de Meia-Idade , Peptídeo Hidrolases/análise , Plasminogênio/análise , Período Pós-Operatório , Estudos Prospectivos , Sepse/etiologia , Ativador de Plasminogênio Tecidual/análise , alfa 2-Antiplasmina/análise , alfa-Macroglobulinas/análise
19.
Eur Cytokine Netw ; 2(3): 177-82, 1991.
Artigo em Inglês | MEDLINE | ID: mdl-1716493

RESUMO

We measured serum interleukin-6 (IL-6) and acute-phase proteins, alpha 1-acid glycoprotein (AGP) and alpha 2-macroglobulin (alpha 2M), after a retrograde intrabiliary bacterial infection in rats with biliary obstruction. Maximum serum IL-6 was obtained at 6 h in rats following inoculation of bacteria (10(6) CFU/ml E. Coli) in the bile duct and it was higher than that observed in rats undergoing a bile duct ligation or a laparotomy. There was a strict relationship between the level of IL-6 at 6 h and the modified levels of AGP and alpha 2M at 48 h. AGP and alpha 2M levels were the highest in sera of rats with bile duct infection as compared with those found in sera of rats with bile duct ligation or laparotomy. After inoculation of E. Coli or E. Fecalis, blood IL-6 level was always higher at 6 h in inferior vena cava as compared with that found in the supra hepatic vein. These results indicate that IL-6 is synthesized after a biliary sepsis and that its blood level is higher in the systemic circulation than in the local circulation.


Assuntos
Proteínas de Fase Aguda/análise , Colangite/sangue , Ducto Colédoco , Infecções por Enterobacteriaceae/sangue , Escherichia , Interleucina-6/sangue , Animais , Colangite/etiologia , Ducto Colédoco/cirurgia , Doenças do Ducto Colédoco/complicações , Infecções por Escherichia coli/sangue , Veias Hepáticas , Ligadura , Masculino , Ratos , Ratos Endogâmicos , Veia Cava Inferior
20.
Eur J Gastroenterol Hepatol ; 12(3): 275-80, 2000 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-10750646

RESUMO

BACKGROUND: The aim of this study was to test the prognostic value of pre-operative assessment of tumour kinetics in colorectal adenocarcinoma. METHODS: The study of tumour kinetics was performed using an in vivo injection of bromodeoxyuridine. Endoscopic biopsies were obtained from the tumour and analysed using flow cytometry. This procedure enables calculation of the in vivo S-phase fraction labelling index (LI), the duration of S-phase (Ts) and the potential tumour doubling time (Tpot). Disease-free survival curves were calculated by a Kaplan-Meier method. The statistical significance between curves was tested by the log rank test. A multivariate analysis was performed using the Cox's proportional hazards model to determine the effect of pathological staging (lymph node involvement), ploidy and kinetic parameters. RESULTS: Thirty-eight colorectal carcinomas were studied without prior chemotherapy or radiation therapy. In univariate analysis, lymph node involvement, labelling index > 10% and Tpot < 5 days were associated with poor prognosis, with P= 0.0006, 0.049 and 0.029 respectively; no significant differences were found in Ts (P = 0.214), and ploidy (P= 0.095). In multivariate analysis, lymph node involvement, ploidy and Tpot were found to be independent factors of colorectal cancer prognosis (P= 0.028, 0.032 and 0.035 respectively) in all tumours. Tpot was considered a independent prognostic factor in diploid tumours (P= 0.047) but not in aneuploid tumours (P= 0.345). CONCLUSIONS: These results suggest that kinetic parameters determined by pre-operative biopsies of colorectal adenocarcinoma represent a prognosis factor, independent of pathological staging, particularly in diploid tumours.


Assuntos
Adenocarcinoma/patologia , Neoplasias Colorretais/patologia , Adenocarcinoma/genética , Adenocarcinoma/terapia , Idoso , Idoso de 80 Anos ou mais , Biópsia , Bromodesoxiuridina , Colo/patologia , Neoplasias Colorretais/genética , Neoplasias Colorretais/terapia , Terapia Combinada , Intervalo Livre de Doença , Feminino , Citometria de Fluxo , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estadiamento de Neoplasias , Ploidias , Valor Preditivo dos Testes , Prognóstico , Modelos de Riscos Proporcionais , Fase S
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