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1.
BMC Gastroenterol ; 20(1): 328, 2020 Oct 07.
Artigo em Inglês | MEDLINE | ID: mdl-33028209

RESUMO

BACKGROUND: This study aimed to assess the prognostic factors including low skeletal muscle mass index (SMI) and perioperative blood transfusion for patients with hepatocellular carcinoma (HCC) following curative surgery. METHODS: This study included 139 patients with HCC who underwent hepatectomy between 2005 and 2016. Univariate and multivariate analyses were performed to identify variables associated with overall survival (OS) and recurrence-free survival (RFS). RESULTS: Low SMI was significantly related with poor OS, while blood transfusion had a strong impact on RFS. The male ratio and body mass index in the low SMI group were significantly higher than those in the high SMI group. There were no significant differences in age, virus etiology, laboratory data, liver function, tumor makers, and operative variables between the groups. Tumor factors such as tumor diameter, tumor number, poor differentiation, and intrahepatic metastasis (IM) did not significantly differ between the two groups. Operation time, intraoperative blood loss volume, and recurrence ratio were significantly higher in the blood transfusion group than in the non-transfusion group. IM was associated with poor OS and RFS. CONCLUSIONS: Low SMI and blood transfusion were independently related with long-term prognosis in patients with HCC following curative surgery.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Transfusão de Sangue , Carcinoma Hepatocelular/cirurgia , Intervalo Livre de Doença , Hepatectomia/efeitos adversos , Humanos , Neoplasias Hepáticas/cirurgia , Masculino , Músculo Esquelético , Recidiva Local de Neoplasia , Prognóstico , Estudos Retrospectivos
2.
BMC Gastroenterol ; 20(1): 264, 2020 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-32770952

RESUMO

BACKGROUND: Postoperative pancreatic fistula (POPF) is a life-threatening postoperative complication. The aim of this study was to evaluate the efficacy of the fistula risk score (FRS) and preoperative body composition factors for predicting the occurrence of clinically relevant POPF (CR-POPF) after pancreaticoduodenectomy (PD). METHODS: In this study, 136 consecutive patients who underwent PD between 2006 and 2018 were enrolled. The risk factors of CR-POPF (grades B and C) were analyzed. Preoperative visceral adipose tissue area (VATA), skeletal mass index (SMI), and subcutaneous adipose tissue area (SATA) were calculated from computed tomography data. RESULTS: The overall 30-day mortality and morbidity rates were 0.7 and 38%, respectively. The incidence rates of grade B and C CR-POPF were 27 and 4%, respectively. A univariate analysis revealed that male sex, habitual smoking, prognostic nutritional index (PNI) < 45, VATA ≥90, VATA/SATA ≥0.9, VATA/SMI ≥ 1.4, and FRS > 4 were significantly associated with the incidence of CR-POPF. A multivariate analysis revealed that PNI < 45, VATA/SMI ≥ 1.4 and FRS > 4 were the independent risk factors of CR-POPF. CONCLUSIONS: Preoperative anthropomorphic imbalance, PNI, and FRS were independent risk factors for CR-POPF. Patients with high-risk factors should be closely monitored during the postoperative period.


Assuntos
Fístula Pancreática , Pancreaticoduodenectomia , Humanos , Masculino , Fístula Pancreática/epidemiologia , Fístula Pancreática/etiologia , Fístula Pancreática/cirurgia , Pancreaticoduodenectomia/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Período Pós-Operatório , Estudos Retrospectivos , Fatores de Risco
3.
BMC Gastroenterol ; 20(1): 256, 2020 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-32758144

RESUMO

BACKGROUND: Gastric cancer (GC) is the third leading cause of cancer-related mortality worldwide. Therefore, identifying the predictive factors for surgical morbidity, disease recurrence, and long-term survival is necessary for preventing GC patient mortality. We aimed to evaluate the factors that contribute to the poor prognoses of GC patients. METHODS: In this retrospective cohort study, the data of 182 patients who underwent curative gastrectomy for GC was reviewed. The data included patients' cancer stage and preoperative prognostic nutritional index (PNI) score. We identified the prognostic factors using a univariate analysis and the multivariable Cox proportional hazards model. The associations between PNI and other clinicopathologic factors for GC were compared via logistic regression analysis. Kaplan-Meier curves were used to evaluate patients' survival in relation to these factors. The median follow-up period was 3.5 years. Multivariable cumulative incidence method based on Fine and Gray's method was performed to evaluate the association between non GC-related death and potential prognostic factors. RESULTS: There were significant differences in overall survival (OS) between comorbidities (myocardial infarction: P = 0.040, liver disease: P = 0.017), cancer stages (I vs. II: P = 0.049, I vs. III: P < 0.001), tumor size (P = 0.002), lymphatic vessel infiltration (P < 0.001), serum CA 19-9 (P = 0.024), and PNI scores (P = 0.002). Moreover, only PNI score was determined to be an independent prognostic factor for survival. Furthermore, stage I GC patients with high PNI scores had significantly longer OS than those with low PNI scores (P < 0.001), but these groups were not significantly different in terms of recurrence-free survival (P = 0.756). Stage II and III GC patients showed no significant difference in terms of OS and recurrence-free survival, regardless of PNI scores. Finally, Fine and Gray's method revealed that PNI score was an independent prognostic factor for non-GC-related death (P < 0.001). CONCLUSIONS: Preoperative PNI is effective in predicting the prognosis of post-curative gastrectomy GC patients and can be used to predict non-GC-related death and the OS of post-curative gastrectomy patients with stage I GC.


Assuntos
Avaliação Nutricional , Neoplasias Gástricas , Gastrectomia , Humanos , Recidiva Local de Neoplasia , Estado Nutricional , Prognóstico , Estudos Retrospectivos , Neoplasias Gástricas/cirurgia
4.
Surg Today ; 50(12): 1657-1663, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32627066

RESUMO

PURPOSE: Laparoscopic cholecystectomy (LC) is performed widely for acute cholecystitis (AC). This study was conducted to identify the predictors for conversion cholecystectomy (CC) for AC. METHODS: The subjects of this study were 395 patients who underwent emergency surgery for AC between 2011 and 2019. Univariate and multivariate analyses were performed to establish the significance of the risk factors for CC in patients with grades II and III AC. RESULTS: There were 162 TG18 GII and GIII patients in the LC group and 31 in the CC group. Univariate analysis revealed significant differences in performance status (p = 0.039), C-reactive protein levels (p = 0.016), albumin levels (p = 0.002), gallbladder (GB) wall thickness (p = 0.045), poor contrast of the GB wall (p = 0.035), severe inflammation around the GB (p < 0.001), enhancement of the liver bed (p = 0.048), and duodenal edema (p < 0.001) between the groups. Multivariate analysis identified hypoalbuminemia (p = 0.043) and duodenal edema (p = 0.014) as independent risk factors for CC. CONCLUSIONS: Most patients with grade I AC underwent LC and had better surgical outcomes than those with grades II and III AC. The most appropriate surgical procedure should be selected based on preoperative imaging of the GB and the neighboring organs and by the presence of hypoalbuminemia.


Assuntos
Colecistectomia Laparoscópica/métodos , Colecistectomia/métodos , Colecistite Aguda/cirurgia , Conversão para Cirurgia Aberta/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Proteína C-Reativa , Colecistite Aguda/diagnóstico , Colecistite Aguda/patologia , Feminino , Vesícula Biliar/patologia , Humanos , Hipoalbuminemia , Masculino , Fatores de Risco , Albumina Sérica , Índice de Gravidade de Doença , Tomografia Computadorizada por Raios X , Resultado do Tratamento
5.
Gan To Kagaku Ryoho ; 47(8): 1261-1263, 2020 Aug.
Artigo em Japonês | MEDLINE | ID: mdl-32829369

RESUMO

A 70-year-old man presented to our hospital with weight loss. A colonoscopy revealed advanced cancer in the lower rectum. Computed tomography showed a tumor larger than 5 cm in the lower rectum with metastasis to the right lateral lymph node. The patient was diagnosed with advanced locally rectal cancer, and chemoradiotherapy(35 Gy plus S-1)was added after 6 courses of mFOLFOX6, and laparoscopic abdominal perineal resection and right lateral lymph nodes dissection were performed. Histopathological examination revealed endocrine cell carcinoma(pT3[A], pN0, M0, pStage Ⅱa). Four months after the operation, recurrence was found in the pelvis, lymph nodes, and lungs, and he died 9 months after the operation. Neuroendocrine carcinoma is relatively rare, so the further accumulation of cases and establishment of treatment methods are desired.


Assuntos
Carcinoma Neuroendócrino , Neoplasias Retais , Idoso , Humanos , Masculino , Recidiva Local de Neoplasia , Prognóstico , Reto
6.
Gan To Kagaku Ryoho ; 46(3): 573-575, 2019 Mar.
Artigo em Japonês | MEDLINE | ID: mdl-30914618

RESUMO

A 56-year-old woman with complaints of anal bleeding and pain visited our hospital, and an elastic soft mass was detected in the anal canal on digital examination.Colonoscopy showed a black Isp polypoid lesion with a black pit from the anal canal to the lower rectum(P-Rb).She was diagnosed with malignant melanoma based on colonoscopic biopsy.Tumor marker levels(CEA, CA19-9)were not increased.No distant metastasis was detected on abdominal CT.No direct invasion was detected on MRI of the pelvis.The patient underwent laparoscopic abdominoperineal resection and D2 lymph node dissection. Histopathology showed a malignant melanoma(pT4b, N0, M0, pStageⅡC).The patient received interferon therapy as adjuvant therapy.There is no sign of recurrence 2 years and 1 month after the surgery.Anorectal malignant melanoma is relatively rare, so establishment of therapy by the accumulation of cases is desired.


Assuntos
Neoplasias do Ânus , Laparoscopia , Melanoma , Neoplasias Cutâneas , Neoplasias do Ânus/cirurgia , Feminino , Humanos , Excisão de Linfonodo , Melanoma/cirurgia , Pessoa de Meia-Idade , Protectomia , Neoplasias Cutâneas/cirurgia
7.
Ann Surg Oncol ; 25(6): 1699-1708, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29626304

RESUMO

BACKGROUND: The optimal prognostic predictive system for gallbladder carcinoma (GBC) has not been established. The gallbladder cancer predictive risk score (GBRS) based on pathological findings identifies incidental GBC patients at risk of recurrence. OBJECTIVE: We aimed to validate the prognostic ability of the GBRS in all GBC patients following curative surgery. METHODS: Fifty-six patients with GBC who underwent curative surgery between 1996 and 2016 were included in this study. Univariate and multivariate analyses were performed to determine prognostic factors associated with overall and recurrence-free survival, and propensity score-matched analysis was performed. RESULTS: The median patient age was 71.9 years, and 39.3% of patients were males. All patients underwent curative surgery (33.9%, simple cholecystectomy; 66.1%, more advanced procedures, such as hepatectomy; and 32.1%, bile duct reconstruction). On univariate analysis, preoperative carbohydrate antigen 19-9 (CA19-9) ≥ 37 U/mL (p = 0.042), postoperative complications (p = 0.043), and a high GBRS (p < 0.001) were prognostic factors for worse overall survival. On multivariate analysis, CA19-9 ≥ 37 U/mL (p = 0.039 and p = 0.043, respectively) and a high GBRS (p = 0.001 and p = 0.010, respectively) were independent risk factors for poor overall and recurrence-free survival. After propensity score-matched analysis, the GBRS precisely predicted prognosis of patients with GBC. CONCLUSIONS: The GBRS is an easy and novel prognostic predicting score. Our validation revealed good discrimination, suggesting its clinical utility to improve individualized prediction of survival for patients undergoing resection of GBC.


Assuntos
Neoplasias da Vesícula Biliar/patologia , Neoplasias da Vesícula Biliar/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Antígeno CA-19-9/sangue , Colecistectomia/efeitos adversos , Intervalo Livre de Doença , Feminino , Hepatectomia/efeitos adversos , Humanos , Vasos Linfáticos/patologia , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Invasividade Neoplásica , Estadiamento de Neoplasias , Nervos Periféricos/patologia , Complicações Pós-Operatórias/etiologia , Valor Preditivo dos Testes , Pontuação de Propensão , Curva ROC , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Taxa de Sobrevida
8.
Surg Today ; 47(10): 1230-1237, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28255633

RESUMO

PURPOSES: The purpose of this study was to evaluate the influence of comorbidities on the surgical outcomes of early cholecystectomy for acute cholecystitis. METHODS: Data were retrospectively collected for patients with acute cholecystitis who underwent early cholecystectomy. Patients were separated into three groups based on the cholecystitis severity grade, and the surgical outcomes of early cholecystectomy were analyzed. Patients with mild and moderate cholecystitis were subdivided into a comorbidity group (n = 10) and a non-comorbidity group (n = 83). RESULTS: There were 57 (55.3%) patients with mild cholecystitis, 36 (35.0%) with moderate cholecystitis, and 10 (9.7%) with severe cholecystitis. The surgical outcomes were significantly worse for patients with severe cholecystitis than for patients with mild or moderate cholecystitis. There were no postoperative deaths after cholecystectomy. There were no significant differences in the complication rate (P = 0.629), conversion rate (P = 0.114), or intraoperative blood loss (P = 0.147) between the comorbidity and non-comorbidity groups. CONCLUSION: Our findings suggest that early cholecystectomy can be performed safely for patients with mild and moderate cholecystitis even if comorbidities are present. Early cholecystectomy may be an alternative treatment strategy for patients with severe cholecystitis who are candidates for anesthesia and surgery.


Assuntos
Colecistectomia , Colecistite Aguda/epidemiologia , Colecistite Aguda/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Comorbidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Guias de Prática Clínica como Assunto , Estudos Retrospectivos , Índice de Gravidade de Doença , Resultado do Tratamento , Adulto Jovem
9.
Gan To Kagaku Ryoho ; 44(12): 1772-1774, 2017 Nov.
Artigo em Japonês | MEDLINE | ID: mdl-29394771

RESUMO

Several recent reports have described the administration of preoperative chemotherapy for locally advanced rectal cancer. In our hospital, preoperative chemotherapy based on oxaliplatin was administered for locally advanced rectal cancer with a tumor diameter of 5 cm or more and half semicircularity or more, and curative resection with laparoscopic surgery was performed after tumor shrinkage. We have experienced 25 cases that underwent preoperative chemotherapy for local advanced rectal cancer in our hospital from May 2012 to April 2016. No tumor increased in size during preoperative chemotherapy and there were no cases where R0 resection was impossible. In addition, no distant metastasis during chemotherapy was observed. Postoperative complications were observed in 3 cases(12%), and anastomotic leakage was observed in 1 case (4%), but conservative treatment was possible. Multidisciplinary treatment of preoperative chemotherapy and surgery should be considered as a therapeutic strategy for locally advanced rectal cancer, mainly in medical institutions without radiation treatment facilities.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Laparoscopia , Neoplasias Retais/tratamento farmacológico , Neoplasias Retais/cirurgia , Idoso , Terapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Resultado do Tratamento
10.
Gan To Kagaku Ryoho ; 43(1): 121-4, 2016 Jan.
Artigo em Japonês | MEDLINE | ID: mdl-26809539

RESUMO

Primary small intestinal adenocarcinoma is rare and its outcome is poor. A 46-year-old man admitted for vomiting was found in enhanced abdominal CT to have local jejunum stenosis and dilation at its oral site. A partial jejunectomy was performed and a jejunal tumor with multiple disseminated nodules in the peritoneum was revealed. Histologically, the adenocarcinoma of the jejunum appeared to be a papillary adenocarcinoma, and also, in part, a moderately differentiated tubular adenocarcinoma. After the jejunectomy, the patient was treated with S-1 chemotherapy, but 22 months after the initial diagnosis, a recurrence was detected. The patient underwent a second partial jejunectomy, and a weekly dose of paclitaxel (PTX) plus doxifluridine (5'-DFUR) was selected as the second-line treatment. The patient is still responding to the treatment 55 months after the last operation. Combination chemotherapy with weekly PTX/5'-DFUR may improve the prognosis for S-1-resistant small intestinal adenocarcinoma.


Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias do Jejuno/tratamento farmacológico , Neoplasias Peritoneais/tratamento farmacológico , Adenocarcinoma/secundário , Adenocarcinoma/cirurgia , Quimioterapia Adjuvante , Floxuridina/administração & dosagem , Humanos , Obstrução Intestinal/etiologia , Obstrução Intestinal/cirurgia , Neoplasias do Jejuno/complicações , Neoplasias do Jejuno/patologia , Neoplasias do Jejuno/cirurgia , Masculino , Pessoa de Meia-Idade , Paclitaxel/administração & dosagem , Neoplasias Peritoneais/secundário , Fatores de Tempo
11.
Int J Cancer ; 136(4): E3-13, 2015 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-25053237

RESUMO

Fatty liver (FL) is associated with development of hepatocellular carcinoma (HCC). However, whether FL itself promotes the progression of HCC is unclear. We recently found that hepatic stellate cells (HSCs) were prominently activated in the steatotic liver. Here, we investigated whether steatotic livers promote HCC progression and whether HSCs of steatotic liver are associated with HCC progression. We implanted rat HCC cells into diet-induced steatotic livers in rats via portal vein injection. Thereafter, HSCs and HCC cells were co-implanted subcutaneously into nude rats. Migration and proliferation of HCC cells were measured, and activation of ERK and Akt in these cells was determined by western blotting. Chemokines secreted from HSCs and HCC cells were also evaluated by ELISA. Steatotic livers significantly promoted HCC metastasis compared with non-steatotic livers. Additionally, co-implantation of HCC cells with HSCs from steatotic livers produced significantly larger tumors in recipient rats as compared to those induced by HCC cells co-implanted with HSCs from normal livers (NLs). HSCs isolated from steatotic livers, compared with HSCs isolated from NLs, secreted greater amounts of interleukin-1α, vascular endothelial growth factor, and transforming growth factor-ß. These cytokines may enhance the proliferation and migration of HCC cells by increasing the phosphorylation of ERK and Akt in HCC cells. Moreover, we noted that the Rho-kinase inhibitor deactivated activated HSCs and attenuated HCC progression. In conclusion, the rat steatotic liver microenvironment favors HCC metastasis, and this effect appears to be promoted by activated HSCs in the steatotic liver.


Assuntos
Carcinoma Hepatocelular/secundário , Fígado Gorduroso/patologia , Células Estreladas do Fígado/fisiologia , Neoplasias Hepáticas Experimentais/patologia , Animais , Carcinoma Hepatocelular/metabolismo , Linhagem Celular Tumoral , Movimento Celular , Proliferação de Células , Citocinas/metabolismo , Progressão da Doença , Fígado Gorduroso/metabolismo , Neoplasias Hepáticas Experimentais/metabolismo , Sistema de Sinalização das MAP Quinases , Masculino , Transplante de Neoplasias , Ratos Endogâmicos BUF , Ratos Endogâmicos F344 , Ratos Nus , Carga Tumoral , Microambiente Tumoral
12.
Liver Transpl ; 21(1): 123-31, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25307969

RESUMO

Rho-kinase (ROCK) inhibitors improve liver blood flow after ischemia/reperfusion (IR) injury, especially in the setting of steatosis, by decreasing the resistance of intrahepatic microcirculation through hepatic stellate cell (HSC) relaxation. However, the systemic administration of ROCK inhibitors causes severe hypotension; therefore, liver-specific ROCK inhibition is required. Here, we tested vitamin A (VA)-coupled liposomes carrying the ROCK inhibitor Y-27632 for targeted HSCs in steatotic rats. Rat livers with steatosis induced by a choline-deficient diet were subjected to IR injury. The delivery site and effect of the ROCK inhibitor were investigated. After liposomal Y-27632 injection, the survival rate after IR, the liver blood flow, the portal perfused pressure, and the hemodynamics were investigated. Immunohistochemical studies showed VA-coupled liposome accumulation in livers. Liposomal Y-27632 was 100-fold more effective in inhibiting HSC activation than free Y-27632. Liposomal Y-27632 improved the survival rate after IR injury, the liver blood flow, and the portal perfusion pressure without severe hypotension. In contrast, untargeted Y-27632 elicited severe systemic hypotension. We conclude that VA-coupled liposomes carrying the ROCK inhibitor yield enhanced drug accumulation in the liver and thus mitigate IR injury in the steatotic liver and reduce major systemic adversity.


Assuntos
Amidas/farmacologia , Fígado Gorduroso/tratamento farmacológico , Fígado/irrigação sanguínea , Fígado/efeitos dos fármacos , Inibidores de Proteínas Quinases/farmacologia , Piridinas/farmacologia , Traumatismo por Reperfusão/prevenção & controle , Quinases Associadas a rho/antagonistas & inibidores , Amidas/administração & dosagem , Amidas/toxicidade , Animais , Pressão Arterial/efeitos dos fármacos , Células Cultivadas , Química Farmacêutica , Deficiência de Colina/complicações , Citoproteção , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Fígado Gorduroso/enzimologia , Fígado Gorduroso/etiologia , Fígado Gorduroso/patologia , Fígado Gorduroso/fisiopatologia , Células Estreladas do Fígado/efeitos dos fármacos , Células Estreladas do Fígado/enzimologia , Células Estreladas do Fígado/patologia , Hipotensão/induzido quimicamente , Hipotensão/enzimologia , Hipotensão/fisiopatologia , Lipossomos , Fígado/enzimologia , Fígado/patologia , Circulação Hepática/efeitos dos fármacos , Masculino , Pressão na Veia Porta/efeitos dos fármacos , Inibidores de Proteínas Quinases/administração & dosagem , Inibidores de Proteínas Quinases/toxicidade , Piridinas/administração & dosagem , Piridinas/toxicidade , Ratos Wistar , Traumatismo por Reperfusão/enzimologia , Traumatismo por Reperfusão/etiologia , Traumatismo por Reperfusão/patologia , Traumatismo por Reperfusão/fisiopatologia , Fatores de Tempo , Quinases Associadas a rho/metabolismo
13.
Kyobu Geka ; 68(9): 761-3, 2015 Aug.
Artigo em Japonês | MEDLINE | ID: mdl-26329709

RESUMO

A 65-year-old man presented with the chief complaint of cough. Chest computed tomography showed the mediastinal tumor. The tumor was resected under the 4th intercostal thoracotomy and the mediastinal approach. The biphasic type of localized malignant mesothelioma was diagnosed by the pathological findings. The postoperative course was uneventful. After postoperative adjuvant radiotherapy and chemotherapy (cisplatin and pemetrexed sodium hydrate), he is well without relapse 7 months after surgery.

14.
Kyobu Geka ; 68(1): 76-9, 2015 Jan.
Artigo em Japonês | MEDLINE | ID: mdl-25595164

RESUMO

A 70-year-old man was admitted to our department for pulmonary nodule of 15 mm in diameter in the left lower lobe detected by chest computed tomography (CT). A possibility of malignant tumor could not be ruled out, and lung partial resection was performed. Pathological examination during operation revealed a coagulation necrosis and the lesion was finally diagnosed as pulmonary dirofilariasis.


Assuntos
Dirofilariose/diagnóstico , Dirofilariose/cirurgia , Pneumopatias Parasitárias/diagnóstico , Pneumopatias Parasitárias/cirurgia , Zoonoses , Idoso , Animais , Diagnóstico Diferencial , Erros de Diagnóstico , Dirofilaria immitis/isolamento & purificação , Dirofilaria immitis/ultraestrutura , Dirofilariose/parasitologia , Dirofilariose/patologia , Cães , Humanos , Pneumopatias Parasitárias/parasitologia , Pneumopatias Parasitárias/patologia , Neoplasias Pulmonares , Masculino , Pneumonectomia , Tomografia Computadorizada por Raios X
15.
Hepatol Res ; 43(3): 249-54, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22734925

RESUMO

AIM: Operative ligation of the portosystemic shunt may control hepatic encephalopathy effectively, but the subsequent increase in portal vein pressure (PVP) leads to high mortality. Splenectomy can decrease inflow into the portal system, resulting in decreased portal pressure. METHODS: We retrospectively examined the effect of splenectomy in combination with shunt closure on portosystemic encephalopathy. RESULTS: Clinical symptoms of encephalopathy disappeared in all six patients who underwent splenectomy in combination with portosystemic shunt ligation, with the exception of one patient who had relapsing encephalopathy after 6 months. Follow-up computed tomography showed complete obliteration of the portosystemic shunts, except in the one patient with relapsing encephalopathy who underwent balloon-occluded retrograde transvenous obliteration for the remaining splenorenal shunt 8 months after surgery. PVP significantly decreased after splenectomy. PVP did not increase to the baseline PVP value after ligation of the shunts, except in two patients who had elevated PVP after surgery: PVP increased from 18 to 19 mmHg after ligation in one patient and from 18 to 23 mmHg in one patient. CONCLUSION: Splenectomy followed by surgical ligation of the portosystemic shunt may be feasible and safe for cirrhotic patients with portosystemic shunts.

16.
World J Surg Oncol ; 11: 177, 2013 Aug 06.
Artigo em Inglês | MEDLINE | ID: mdl-23915104

RESUMO

Herein, we present the case of a patient with recurrent hepatocellular carcinoma (HCC) who had paracaval lymph node (LN) metastases with an inferior vena cava (IVC) tumor thrombus after a hepatectomy. A 65-year-old man with chronic hepatitis B virus infection received an extended anterior segmentectomy because of two hepatic tumors, located in segments 7 and 8. Histological examination of both resected specimens showed mostly moderately differentiated HCC with some poorly differentiated areas, and liver cirrhosis (A2/F4). Because the patient had an elevated α-fetoprotein serum level, abdominal computed tomography (CT) was performed. Abdominal CT revealed a 9-mm-diameter recurrent tumor in hepatic segment 3 and paracaval LN metastases with an IVC tumor thrombus at 8 months after the first operation. The patient received transcatheter arterial chemoembolization as treatment for the intrahepatic recurrence, following resection of the paracaval LN metastases and removal of the IVC tumor thrombus. In this case, the paracaval LN metastases had directly infiltrated the IVC via the lumbar veins, resulting in an IVC tumor thrombus, which usually develops from an intrahepatic tumor via the hepatic vein. The development of an IVC tumor thrombus with HCC recurrence, as in this case, is very rare, and based on a PubMed search, we believe this report may be the first to describe this condition.


Assuntos
Carcinoma Hepatocelular/cirurgia , Hepatectomia/efeitos adversos , Neoplasias Hepáticas/cirurgia , Recidiva Local de Neoplasia/cirurgia , Trombose/patologia , Veia Cava Inferior/patologia , Idoso , Carcinoma Hepatocelular/secundário , Humanos , Neoplasias Hepáticas/patologia , Metástase Linfática , Masculino , Recidiva Local de Neoplasia/patologia , Prognóstico , Trombose/etiologia , Tomografia Computadorizada por Raios X
17.
Surg Today ; 43(4): 418-23, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23014833

RESUMO

A 76-year-old male was referred for the treatment of liver tumors detected by abdominal computed tomography (CT). Dynamic CT revealed a low-density tumor with an irregularly enhanced rim in the left lateral sector, and a highly enhanced, well-circumscribed tumor in the caudate lobe, accompanied by dilation of the intrahepatic biliary ducts in the left lobe. Preoperative imaging studies led to the diagnosis of double cancers consisting of intrahepatic cholangiocarcinoma and hepatocellular carcinoma (HCC). Left hemihepatectomy with caudate lobectomy was performed. The postoperative course was uneventful. Microscopic evaluation revealed that the tumor in the left lateral sector was adenosquamous carcinoma (ASC), whereas that in the caudate lobe was HCC. This report presents the first case describing the resection of synchronous double cancers of primary hepatic ASC and HCC.


Assuntos
Carcinoma Adenoescamoso/diagnóstico , Carcinoma Hepatocelular/diagnóstico , Neoplasias Hepáticas/diagnóstico , Neoplasias Primárias Múltiplas/diagnóstico , Idoso , Humanos , Masculino
18.
J Hepatol ; 56(1): 146-52, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21756846

RESUMO

BACKGROUND & AIMS: Hepatic stellate cells are thought to play a role in modulating intrahepatic vascular resistance based on their capacity to contract via Rho signaling. We investigated the effect of a Rho-kinase inhibitor on ischemia-reperfusion injury in the steatotic liver. METHODS: Steatotic livers, induced by a choline-deficient diet in rats, were subjected to ischemia-reperfusion injury. Hepatic stellate cells isolated from steatotic livers were analyzed for contractility and Rho signaling activity. The portal pressure of the perfused rat liver and the survival rate after ischemia-reperfusion were also investigated. RESULTS: Hepatic stellate cells from steatotic livers showed increased contractility and upregulation of Rho-kinase 2 compared with those from normal livers. Furthermore, endothelin-1 significantly enhanced the contractility and phosphorylation level of myosin light chain and cofilin in hepatic stellate cells isolated from steatotic livers. A specific Rho-kinase inhibitor, fasudil, significantly suppressed the contractility and decreased the phosphorylation levels of myosin light chain and cofilin. Serum levels of endothelin-1 were markedly increased after IR in rats with steatotic livers, whereas fasudil significantly decreased endothelin-1 serum levels. Rats with steatotic livers showed a significant increase in portal perfusion pressure after ischemia-reperfusion and a significant decrease in survival rate; fasudil treatment significantly reduced these effects. CONCLUSIONS: Activation of Rho/Rho-kinase signaling in hepatic stellate cells isolated from steatotic livers is associated with an increased susceptibility to ischemia-reperfusion injury. A Rho-kinase inhibitor attenuated the activation of hepatic stellate cells isolated from steatotic livers and improved ischemia-reperfusion injury in steatotic rats.


Assuntos
Fígado Gorduroso/tratamento farmacológico , Fígado Gorduroso/enzimologia , Fígado/enzimologia , Fígado/lesões , Traumatismo por Reperfusão/prevenção & controle , Quinases Associadas a rho/antagonistas & inibidores , 1-(5-Isoquinolinasulfonil)-2-Metilpiperazina/análogos & derivados , 1-(5-Isoquinolinasulfonil)-2-Metilpiperazina/farmacologia , Fatores de Despolimerização de Actina/metabolismo , Animais , Endotelina-1/sangue , Fígado Gorduroso/complicações , Fígado Gorduroso/patologia , Células Estreladas do Fígado/efeitos dos fármacos , Células Estreladas do Fígado/enzimologia , Células Estreladas do Fígado/patologia , Fígado/efeitos dos fármacos , Masculino , Cadeias Leves de Miosina/metabolismo , Fosforilação , Inibidores de Proteínas Quinases/farmacologia , Ratos , Ratos Wistar , Traumatismo por Reperfusão/enzimologia , Traumatismo por Reperfusão/etiologia
19.
Ann Surg Oncol ; 19(2): 418-25, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21710324

RESUMO

BACKGROUND: Several published reports investigating the effects of interferon (IFN) therapy on survival and tumor recurrence after curative resection of hepatocellular carcinoma (HCC) have been inconclusive. The aim of this study is to investigate the efficacy of pegylated-IFN (peg-IFN) therapy after curative hepatic resection for HCC in patients infected with hepatitis C virus (HCV). METHODS: Data from 175 patients who underwent curative hepatic resection for HCC associated with HCV were retrospectively collected and analyzed; 75 patients received peg-IFN therapy after surgery, whereas 100 patients did not receive IFN therapy. To overcome biases resulting from the different distribution of covariates in the two groups, a one-to-one match was created using propensity score analysis. After matching, patient outcomes were analyzed. RESULTS: After one-to-one matching, patients (n = 38) who received peg-IFN therapy after surgery and patients (n = 38) who did not receive IFN therapy had the same preoperative and operative characteristics. The 3- and 5-year overall survival rates of patients who received peg-IFN therapy after hepatic resection were significantly higher than those of patients who did not receive IFN therapy (P = 0.00135). The 3- and 5-year overall survival rates were 100 and 91.7% and 76.6 and 50.6% in the peg-IFN group and non-IFN group, respectively. There was no significant difference in disease-free survival between the two matched groups (P = 0.886). CONCLUSION: Peg-IFN therapy may be effective as an adjuvant chemopreventive agent after hepatic resection in patients with HCV-related HCC.


Assuntos
Antivirais/uso terapêutico , Carcinoma Hepatocelular/tratamento farmacológico , Hepatectomia , Hepatite C/tratamento farmacológico , Interferon-alfa/uso terapêutico , Neoplasias Hepáticas/tratamento farmacológico , Recidiva Local de Neoplasia/prevenção & controle , Polietilenoglicóis/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/virologia , Feminino , Seguimentos , Hepacivirus/genética , Hepacivirus/isolamento & purificação , Hepatite C/mortalidade , Hepatite C/virologia , Humanos , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/virologia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/mortalidade , Estadiamento de Neoplasias , Prognóstico , Proteínas Recombinantes/uso terapêutico , Estudos Retrospectivos , Taxa de Sobrevida
20.
Ann Surg Oncol ; 19(9): 2888-96, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22466667

RESUMO

BACKGROUND: Although several studies have shown that serum antithrombin III (ATIII) has anti-inflammatory effects, the prognostic value of ATIII in HCC is unknown. We investigated the influence of preoperative ATIII levels on the outcome of patients who underwent hepatectomy for hepatocellular carcinoma (HCC). METHODS: Data from 440 patients (314 patients with ATIII ≥ 70 % and 126 patients with ATIII <70 %) who underwent curative hepatectomy for HCC were retrospectively collected and analyzed. To overcome bias due to the different distribution of covariates for the 2 groups, propensity score matching was performed on the patients, and outcomes were compared. RESULTS: The propensity score analysis revealed that 65 patients with ATIII of ≥ 70 % (group 1) and 65 patients with ATIII of <70 % (group 2) had the same preoperative and operative characteristics (excluding the ATIII level). The overall survival rate and the disease-free survival rate was significantly higher in group 1 than in group 2 (P = 0.005 and 0.011, respectively). Multivariate analysis showed that ATIII was a significant favorable factor for overall survival and disease-free survival of patients with HCC after curative hepatectomy. CONCLUSIONS: The prognosis of patients with HCC was found to be associated with preoperative antithrombin III levels. ATIII may be useful for predicting outcomes of patients with HCC after curative hepatectomy.


Assuntos
Antitrombina III/metabolismo , Carcinoma Hepatocelular/sangue , Neoplasias Hepáticas/sangue , Recidiva Local de Neoplasia/sangue , Idoso , Carcinoma Hepatocelular/cirurgia , Intervalo Livre de Doença , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Pontuação de Propensão , Modelos de Riscos Proporcionais , Curva ROC , Estudos Retrospectivos , Resultado do Tratamento
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