RESUMO
AIMS: Liver resection is considered the standard treatment of colorectal metastases (CRLM). However, to date, no long term oncological results and data regarding repeat hepatectomy after laparoscopic approach are known. The aim of this study is to analyze single center long-term surgical and oncological outcomes after liver resection for CRLM. METHODS: A total of 57 open resections (OR) were matched with 57 laparoscopic resections (LR) for CRLM. Matching was based mainly on number of metastases, tumor size, segmental position of lesions, type of hepatectomy and type of resection. RESULTS: Morbidity rate was significantly less in the LR group (p = 0.002); the length of hospital stay was 6.5 ± 5 days for the LR group and 9.2 ± 4 days for the OR group (p = 0.005). After a median follow up of 53.7 months for the OR group and 40.9 months for the LR group, the 5-y overall survival rate was 65% and 60% respectively (p = 0.36) and the 5-y disease free survival rate was 38% and 29% respectively (p = 0.24). More patients in the LR group received a third hepatectomy for CRLM relapse than in the OR group (80% vs. 14.3% respectively; p = 0.015). CONCLUSIONS: Laparoscopic resection for CRLM offers advantages in terms of reduced blood loss, morbidity rate and hospital stay. It provides comparable long-term oncological outcomes but can improve further resectability in patients with recurrent disease.
Assuntos
Neoplasias Colorretais/patologia , Hepatectomia/métodos , Neoplasias Hepáticas/cirurgia , Fígado/cirurgia , Recidiva Local de Neoplasia/cirurgia , Idoso , Estudos de Casos e Controles , Quimioterapia Adjuvante , Intervalo Livre de Doença , Feminino , Humanos , Laparoscopia/métodos , Tempo de Internação , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/secundário , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Recidiva Local de Neoplasia/secundário , Complicações Pós-Operatórias , Reoperação , Estudos Retrospectivos , Resultado do TratamentoRESUMO
BACKGROUND: Hepatic artery thrombosis (HAT) represents a devastating complication after liver transplantation (LT), occurring in 1.6%-9.2% of adult recipients. Treatments of HAT include thrombectomy and thrombolysis (with or without redo of the arterial anastomosis), percutaneous thrombolysis through an angiogram, liver retransplantation, and clinical observation. METHODS: We retrospectively analyzed data from 739 adult LTs between January 1992 and September 2009. HAT was classified as early (E-HAT), when occurring within the first 30 days after LT, or late HAT (L-HAT), when diagnosed from the 2nd month onward. HAT suspected clinically was confirmed by Doppler ultrasound and angiography in all cases. Attempted revascularization was defined as early (ER) if performed within the first 2 weeks after LT and late (LR) if performed between 15 and 30 days. RESULTS: After a median follow-up (FU) of 62 months (range, 1-227 months), HAT occurred in 31/739 grafts (4.3%). E-HAT was recorded in 25/31 cases (3.4%) and L-HAT in 11/31 cases (0.8%). ER was performed in 20/31 patients (65%) leading to 62% graft salvage; it was 81% when the revascularization was performed within the first week after LT (P = ns). LR was unsuccessful in all cases (P = .08). The overall incidence of BC among rescued grafts was 54% without graft loss during FU. Graft survival was 79% versus 71%; and 50% versus 50% at 1 and 3 years for E-HAT and L-HAT, respectively (P = ns). CONCLUSIONS: Urgent revascularization in cases of early HAT may decrease graft loss, especially when performed within the first week after LT, with improved overall outcomes.
Assuntos
Sobrevivência de Enxerto , Artéria Hepática/patologia , Transplante de Fígado , Trombose/cirurgia , Procedimentos Cirúrgicos Vasculares , Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doadores de Tecidos , Resultado do Tratamento , Adulto JovemRESUMO
In the management of giant incisional hernias with loss of domain several surgical obstacles have to be addressed. Adequate coverage of the defect using mesh, sufficient local tissue advancement and prevention of wound and mesh infections are prerequisites for success. We present a case of a complicated giant incisional hernia repair after oncologic surgery, in which we chose for an intraabdominal mesh repair using a composite mesh. The patient developed a wound dehiscence and mesh infection, successfully treated with negative pressure therapy followed by a free ALT perforator flap. Several surgical techniques are discussed to manage these complicated hernias, such as progressive pneumoperitoneum, the component separation technique and the importance of soft tissue coverage (e.g. anterolateral thigh flap). In cases of wound complications, negative pressure therapy and new soft tissue coverage are discussed.
Assuntos
Parede Abdominal/cirurgia , Hérnia Ventral/cirurgia , Retalhos Cirúrgicos , Humanos , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Tratamento de Ferimentos com Pressão Negativa , Obesidade/complicações , Telas Cirúrgicas , Deiscência da Ferida Operatória/terapia , Infecção da Ferida Cirúrgica/terapiaRESUMO
INTRODUCTION: Most patients with gastro-enteropancreatic neuro-endocrine tumours present with liver metastases at the time of diagnosis. As metastases are usually widespread in the liver, though remain confined to this organ for long periods of time, liver transplantation could be in some cases a possible treatment option. MATERIAL AND METHODS: We herein report the case of a 24-year-old male with Zollinger-Ellison syndrome, who was referred to our department after having had a right hepatectomy for metastatic lesions, followed by chemotherapy. At that time, the site of the primary tumour was undefined. Following the diagnosis of a primary gastrinoma in the pancreatic head after selective angiography of the pancreatic vessels with hormonal sampling tests in our institution, the decision was made to offer a living donor liver transplantation (LDLT). RESULTS: A right lobe LDLT was carried out together with a Whipple's procedure. The operation was uneventful and five years later the patient remains in an excellent clinical condition, although with a suspicion of relapsed gastrinoma. DISCUSSION: According to the literature, some conditions, such as the 1-step combined surgery, gastrinoma primary tumour and duodeno-pancreatical localisation are considered as poor prognostic factors, whereas young age and tumour expression of Ki-67 < 5% are linked to a more favourable outcome. We think that in cases of long-lasting stability of the disease under chemotherapy, together with the presence of a low Ki-67 expression index, such a treatment could be proposed to young and symptomatic patients, provided the resection of the primary tumour is feasible. Long-term survival may be achieved in metastatic gastro-enteropancreatic neuro-endocrine tumours after LDLT combined with Whipple's procedure, despite tumour relapse.
Assuntos
Procedimentos Cirúrgicos do Sistema Digestório , Gastrinoma/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Neoplasias Pancreáticas/cirurgia , Síndrome de Zollinger-Ellison/cirurgia , Seguimentos , Gastrinoma/secundário , Hepatectomia , Humanos , Transplante de Fígado/métodos , Doadores Vivos , Masculino , Neoplasias Pancreáticas/secundário , Adulto JovemRESUMO
BACKGROUND: Mesh techniques are the preferable methods for repair of small ventral hernias, including umbilical and epigastric hernias, as primary suture repair shows high recurrence rates. Recently, the Ventralex (Davol Inc., C.R.Bard, Inc., RI, USA) hernia patch was introduced with promising preliminary short-term results. METHODS: In this short technical note we describe both the surgical technique for adequate patch placement and the material characteristics of this device with associated pro's and con's. CONCLUSION: For small ventral hernia repair the Ventralex patch is a very elegant and quick to use mesh device. Although it is meant to be used intraperitoneally, it is also possible to place the patch in the preperitoneal space. However, probably due to the less controllable mesh deployment, and the interaction between the different materials, especially in the preperitoneal space, extra attention and some caution during placement is warranted using this device.
Assuntos
Hérnia Ventral/cirurgia , Telas Cirúrgicas , Hérnia Umbilical/cirurgia , Humanos , Próteses e Implantes , Procedimentos Cirúrgicos Operatórios/métodos , Técnicas de SuturaRESUMO
BACKGROUND: The prognosis of pancreaticobiliary tumors is poor. The aim was to assess the feasibility of radiotherapy (RT) and concomitant gemcitabine and oxaliplatin in locally advanced pancreatic cancer and distal cholangiocarcinoma. PATIENTS AND METHODS: Twenty-two patients with locally advanced pancreatic (n = 17) or biliary tract cancer (n = 5) were included. They received two cycles of gemcitabine/oxaliplatin followed by 5 weeks of RT in combination with a weekly fixed dose gemcitabine and an escalating dose of oxaliplatin from 40 up to 70 mg/m(2). National Cancer Institute-Common Toxicity Criteria 3.0 was used to score weekly the treatment-related toxicity. RESULTS: The patients treated at a dose of 40 mg/m(2) of oxaliplatin had no dose-limiting toxicity. At 50 mg/m(2), two patients developed grade 4 thrombocytopenia. Nine patients received 60 mg/m(2), one developed grade 4 thrombocytopenia. Grade 4 thrombocytopenia in two patients and grade 3 diarrhea in one patient were observed with 70 mg/m(2). Median time to progression was 8 months and median overall survival was 17 months. CONCLUSIONS: RT in combination with gemcitabine and oxaliplatin is feasible in patients with locally advanced pancreaticobiliary cancer. The reported time to progression underlines the potential activity of this regimen. The dose of 60 mg/m(2) of oxaliplatin can be considered as the recommended dose.
Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Colangiocarcinoma/tratamento farmacológico , Colangiocarcinoma/radioterapia , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/radioterapia , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/radioterapia , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Colangiocarcinoma/cirurgia , Terapia Combinada , Desoxicitidina/administração & dosagem , Desoxicitidina/efeitos adversos , Desoxicitidina/análogos & derivados , Relação Dose-Resposta a Droga , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Compostos Organoplatínicos/administração & dosagem , Compostos Organoplatínicos/efeitos adversos , Oxaliplatina , Neoplasias Pancreáticas/cirurgia , Estudos Prospectivos , Resultado do Tratamento , GencitabinaRESUMO
PURPOSE: To evaluate the feasibility, the reproducibility, the safety and the efficacy of a recently introduced preperitoneal memory-ring patch (Polysoft, Davol Inc., C.R. Bard Inc., Crawley, UK) by a prospective multicentric observational study. METHODS: We performed 235 unilateral groin hernia repairs in 200 consecutive patients during a 12-month period. Patients were operated by three different surgeons in two different centres. Pre- and intraoperative data, as well as postoperative complications, were prospectively recorded. RESULTS: Two hundred patients, with a mean age of 55.4 years, were operated for primary or recurrent unilateral groin hernias. The mean operation time for unilateral hernia repair was 22 min (range 14-37 min). Seventy-one patients (35.5%) were operated in an ambulatory setting. Considering pain scores, we observed a preoperative visual analogue scale (VAS) score of 1.4 (range 0-3.7). After 24 h, 3 weeks and 6 months, VAS was 4.2 (0.5-6.9), 1.7 (0-2.0) and 0.1 (0-1.5), respectively. The follow-up was more than 18 months in all patients (range 19-31 months). In total, three patients were diagnosed with a recurrence and were reoperated by an anterior Lichtenstein repair with large-pore mesh. CONCLUSION: This transinguinal minimally invasive preperitoneal mesh repair is reproducible, easy to perform and safe with acceptable mid-term results. These elements, together with a minimal superficial dissection in the inguinal canal, preperitoneal mesh placement and the absence of fixation, are possible elements to reduce acute and chronic postoperative pain compared to other open and also laparoscopic techniques that have to be proven in larger (randomised) trials.
Assuntos
Hérnia Inguinal/cirurgia , Implantação de Prótese , Estudos de Viabilidade , Humanos , Laparoscopia , Pessoa de Meia-Idade , Telas CirúrgicasRESUMO
Hepatic resections are considered as a standard intervention in abdominal surgery. However there is still a remarkable complication rate. Despite all recent developments in surgical techniques during liver surgery, blood loss is still one of the main causes for postoperative morbidity and mortality. In addition to patient-dependent factors, aspects of the surgical technique play a major role, in particular with regard to the occurrence of peri-operative bleeding, fluid accumulation and bile leakage. Nowadays, the use of topical sealants is often recommended as an additional tool to decrease postoperative bleeding and bile fistula. Fibrin sealants are able not only to enhance clot formation and wound healing, but possibly work as a sealing device for the small biliary branches. In this overview we will try to evaluate the efficacy in terms of time to complete haemostasis, the need for blood transfusions and the incidence of bile leakage according to recent trials. Furthermore the clinical benefit for the liver surgery patient will be discussed.
Assuntos
Perda Sanguínea Cirúrgica/prevenção & controle , Adesivo Tecidual de Fibrina/uso terapêutico , Hepatectomia , Adesivos Teciduais/uso terapêutico , Anastomose Cirúrgica , Aprotinina/uso terapêutico , Análise Custo-Benefício , Combinação de Medicamentos , Adesivo Tecidual de Fibrina/economia , Fibrinogênio/uso terapêutico , Hemostasia Cirúrgica , Humanos , Trombina/uso terapêutico , Adesivos Teciduais/economiaRESUMO
BACKGROUND: Immunosuppression withdrawal is feasible in some liver transplant (OLT) recipients but may lead to severe rejection in others, underlying the need for reliable biomarkers to identify patients with tolerant profile in whose weaning/withdrawal could be safely proposed. We evaluated the value of real-time polymerase chain reaction (PCR)-based measurement of interleukin (IL)-2 mRNA in mixed lymphocyte reaction (MLR) to monitor in vitro anti-donor reactivity in OLT patients. METHODS: MLR were performed in three patients undergoing living donor OLT using a tolerogenic protocol including donor stem cells. IL-2 mRNA production in MLR was measured by PCR at several intervals after OLT. RESULTS: In the early posttransplant period, three patients presented with global immunodeficiency, as indicated by low IL-2 mRNA production against both donor and third-party antigens. In the two patients who has immunosuppression successfully withdrawn, donor-specific hyporesponsiveness was observed thereafter: IL-2 mRNA production against donor cells remained low, while IL-2 mRNA production against a third-party antigen-presenting cells progressively recovered. No such modulation of the anti-donor response was observed in the patient in whom withdrawal led to rapid rejection. CONCLUSION: Measurement of IL-2 mRNA production in MLR might prefer a tool to monitor anti-donor reactivity after OLT for decisions to minimize or withdraw immunosuppression in patients displaying donor-specific hyporesponsiveness.
Assuntos
Interleucina-2/genética , Transplante de Fígado/imunologia , RNA Mensageiro/genética , Citocinas/genética , Regulação da Expressão Gênica , Humanos , Teste de Cultura Mista de Linfócitos , Reação em Cadeia da Polimerase Via Transcriptase ReversaRESUMO
Sirolimus (SRL) is associated with many side effects including hypercholesterolemia, anaemia, impaired wound healing and abnormal liver function tests. Limb lymphedema has only been reported several times in renal transplant recipients. We present a case of lower limb lymphedema that occurred in a 59-year-old liver transplant recipient after being on a SRL regimen for seven months. Extensive diagnostic investigations could not reveal signs of infection, venous obstruction or malignancy. After discontinuation of SRL, the lymphedema gradually resolved during the next three months. The pathologic mechanism behind this phenomenon is unknown, but antiangiogenetic and antiproliferative properties of SRL have been hold responsible. Further studies are necessary to explain this rare side effect.
Assuntos
Imunossupressores/efeitos adversos , Transplante de Fígado , Extremidade Inferior/patologia , Linfedema/induzido quimicamente , Sirolimo/efeitos adversos , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
BACKGROUND: The current advances and expertise in minimally invasive surgery and the present importance of cost containment have encouraged the performance of laparoscopic cholecystectomy (LC) as an ambulatory procedure. A retrospective study was carried out to assess the feasibility, outcome and patients' preference and satisfaction after performing true day-case LC in a university teaching hospital. METHODS: All patients admitted consecutively between January 2003 and March 2005 for LC were considered for inclusion in the study. Patients were offered ambulatory treatment if they were ASA class 1 or 2, had no clinical signs of acute cholecystitis or pancreatitis, and had a responsible carer at home. All others underwent a routine LC. Reasons for refusing day-surgery LC were analyzed. Postoperative complications, conversion rate, overnight stay and patient satisfaction were all evaluated. RESULTS: A total of 249 LCs were performed. Only 15 (6%) were performed in an ambulatory setting. Reasons for refusing day-surgery were medical (42%), doubt about reimbursement by insurance companies (15%) or psychological (49%). All patients were treated for symptomatic cholecystolithiasis. Unplanned admission was 13% because of excessive nausea and vomiting. Outpatient follow-up showed that overall patient satisfaction was over 80%. CONCLUSION: Considering an increasing trend towards reduced hospital stay, ambulatory LC is feasible and safe, showing high levels of patient satisfaction. Adequate prophylaxis of postoperative nausea, vomiting and pain management is necessary. However, the provision of adequate information to the patient by the referring physician is essential to avoid refusal of ambulatory treatment. Insurance companies have to be more liberal with their policies for day-case surgery.
Assuntos
Procedimentos Cirúrgicos Ambulatórios , Colecistectomia Laparoscópica , Adulto , Idoso , Idoso de 80 Anos ou mais , Bélgica , Colelitíase/cirurgia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do PacienteRESUMO
BACKGROUND: The aim of the study was to evaluate the influence of low dose perioperative Octreotide on the prevention of complications (pancreatic fistula and general complications) in patients undergoing pancreatic surgery followed by pancreatico-jejunostomy. MATERIAL AND METHODS: 105 patients were randomized to receive either Octreotide 0.1 mg subcutaneously 3 times/day for a total of 7 days or no Octreotide. The primary endpoints were the occurrence of a pancreatic fistula and/or general complications including the length of hospital stay. There were 25 surgical draining procedures performed and 80 duodeno-pancreatectomies with or without preservation of the pylorus. Twenty-six (24.8%) of the patients were treated for chronic pancreatitis, 8 (7.6%) for benign tumoral disease and 71 (67.6%) for carcinoma. All patients underwent pancreatico-jejunostomy. RESULTS: 56 patients received Octreotide and 49 did not. The incidence of fistula formation in the Octreotide group was 8.9% (n=5) and in the control group 8.2% (n=4) for a total incidence of 8.5%. The difference between the two groups was not statistically significant. There was one death in the Octreotide group and none in the control group for an overall mortality of 0.9%. The morbidity, except fistulas, was 10.7% in the Octreotide group and 12.2% in the control group. The length of hospital stay was 23.1 +/- 15.1 days in the group receiving Octreotide vs 20.4 +/- 8.1 days in the control group (p = 0.808). Stratifying the data for duodenopancreatectomy and for draining procedures there was no difference between the groups either. CONCLUSION: In patients undergoing pancreatic surgery and pancreatico-jejunostomy, the perioperative use of 3 x 0.1 mg Octreotide for 7 days does not reduce general complications nor fistula formation.
Assuntos
Fármacos Gastrointestinais/uso terapêutico , Octreotida/uso terapêutico , Fístula Pancreática/prevenção & controle , Assistência Perioperatória , Complicações Pós-Operatórias/prevenção & controle , Relação Dose-Resposta a Droga , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/cirurgia , Pancreaticojejunostomia , Pancreatite Crônica/cirurgia , Estudos ProspectivosRESUMO
In a 66-year-old woman with pruritus, jaundice, dark-brown urine and light-colored faeces obstructive jaundice was diagnosed. Despite extensive investigations, it was not possible to clearly distinguish if varicosis or cholangiocarcinoma was the cause of the obstruction. During laparotomy the right lobe of the liver was seen to be greatly underdeveloped. The portal system showed a varicose deformation with compression of the bile ducts and portal hypertension. The right lobe of the liver was removed and the portal hypertension was treated by creating a shunt between the hepatic portal vein and the right ovarian vein. The jaundice disappeared and the patient recovered. Histological investigation showed atrophy, secondary biliary fibrosis, cirrhosis and a biliary cystadenoma. There were no signs of malignancy. The varicose deformation can be considered to be a result of the portal hypertension caused by fibrosis and cirrhosis with possibly a history of thrombosis and insufficient recanalization.
Assuntos
Icterícia Obstrutiva/etiologia , Sistema Porta/patologia , Veia Porta , Varizes/complicações , Idoso , Diagnóstico Diferencial , Feminino , Humanos , Hipertensão Portal/complicações , Hipertensão Portal/cirurgia , Icterícia Obstrutiva/diagnóstico , Icterícia Obstrutiva/cirurgia , Laparotomia/métodos , Derivação Portossistêmica Cirúrgica/métodos , Resultado do Tratamento , Varizes/cirurgiaRESUMO
BACKGROUND: Preliminary data demonstrate that the recurrence of hepatitis C is more severe in patients undergoing adult-to-adult living liver (AAL) transplantation (Tx) in comparison with cadaveric liver (CL) Tx. The authors report on the 1-year follow-up of their cohort of hepatitis C virus (HCV) patients undergoing AALTx or CLTx. METHODS: Twenty-six patients with HCV end-stage liver cirrhosis underwent CLTx and 17 underwent AALTx. The diagnosis of recurrent HCV was made on the basis of increased transaminases, detectable HCV RNA levels, and histologic findings on liver biopsy. Liver biopsies were performed on the basis of clinical indications. Bilirubin concentration, partial thromboplastin time, and alanine aminotransferase activity were compared between the two groups at different time intervals. RESULTS: HCV recurrence was seen in 10 of 26 CLTx patients versus 6 of 17 AALTx patients (P=0.1). Time until recurrence was longer in AALTx patients (158+/-114 days vs. 227+/-154 days, P=0.4). Of the biochemical parameters, only bilirubin concentration at week 4 was significantly different between AALTx and CLTx patients (3.1+/-4.3 mg/dL vs. 1.26+/-0.83 mg/dL, P=0.04). Overall survival and the number of patients needing retransplantation were similar in both groups. CONCLUSIONS: At a follow-up period of 1 year, there is no difference in outcome between end-stage HCV patients undergoing AALTx or CLTx.
Assuntos
Sobrevivência de Enxerto/fisiologia , Hepatite C/complicações , Transplante de Fígado/fisiologia , Adulto , Bilirrubina/sangue , Biópsia , Cadáver , Carcinoma Hepatocelular/cirurgia , Carcinoma Hepatocelular/virologia , Rejeição de Enxerto/epidemiologia , Humanos , Neoplasias Hepáticas/cirurgia , Neoplasias Hepáticas/virologia , Transplante de Fígado/mortalidade , Transplante de Fígado/patologia , Doadores Vivos , Pessoa de Meia-Idade , Tempo de Tromboplastina Parcial , Recidiva , Análise de Sobrevida , Fatores de Tempo , Doadores de Tecidos , Resultado do TratamentoRESUMO
PURPOSE: We studied the effect of neo-adjuvant chemotherapy on the operative outcome and colonic anastomotic healing in a rat model. METHODS: Firstly, we determined the maximum tolerated dose (MTD) of intraperitoneal 5-flurorouracil (5-FU) in Wistar rats. Secondly, animals were randomly divided into 3 groups: group CT-H received the MTD of 5-FU, group CT-L received 50% of the MTD and a control group received an equivalent volume of 0.9% saline, intraperitoneally. Colonic anastomosis was performed 4 days after chemotherapy. Animals were sacrificed 10 days after surgery. Evaluations were made of: weight evolution, surgical complications, anastomotic bursting pressure (BP) and histological analysis of the anastomotic site. RESULTS: A dose of 20 mg/kg 5-FU, intraperitoneally, for 5 consecutive days was found to be the MTD. A significant weight loss occurred in group CT-H in comparison to the control group either during chemotherapy (p < 0.01) or after surgery (p = 0.01). Postoperative complications were seen only in group CT-H (30% versus 0% in CT-L and control groups). More intense adhesion formation was observed in group CT-H in comparison to the control group (p < 0.01). Intraperitoneal 5-FU induced more inflammation and fibrosis in the submucosa, either with the low or the high-dose, compared to the control animals (p < 0.05) and more pronounced vascular sclerosis was noticed with a dose of 20 mg/kg (p = 0.03). No significant differences in BP were found between the chemotherapy groups and the control group. CONCLUSION: Neoadjuvant chemotherapy with 5-FU does not alter the strength of colon anastomosis in this rat model. A dose of 20 mg/kg induces significantly more intra-abdominal adhesions and histological alterations at the anastomotic site.
Assuntos
Antimetabólitos Antineoplásicos/farmacologia , Colo/cirurgia , Fluoruracila/farmacologia , Cicatrização/efeitos dos fármacos , Anastomose Cirúrgica , Animais , Antimetabólitos Antineoplásicos/uso terapêutico , Quimioterapia Adjuvante , Colo/patologia , Fluoruracila/uso terapêutico , Masculino , Dose Máxima Tolerável , Distribuição Aleatória , Ratos , Ratos WistarRESUMO
OBJECTIVE: The objective of this study was to assess the feasibility, safety, and outcome of laparoscopic liver resection for benign liver tumors in a multicenter setting. BACKGROUND: Despite restrictive, tailored indications for resection in benign liver tumors, an increasing number of articles have been published concerning laparoscopic liver resection of these tumors. METHODS: A retrospective study was performed in 18 surgical centres in Europe regarding their experience with laparoscopic resection of benign liver tumors. Detailed standardized questionnaires were used that focused on patient's characteristics, clinical data, type and characteristics of the tumor, technical details of the operation, and early and late clinical outcome. RESULTS: From March 1992 to September 2000, 87 patients suffering from benign liver tumor were included in this study: 48 patients with focal nodular hyperplasia (55%), 17 patients with liver cell adenoma (21%), 13 patients with hemangioma (15%), 3 patients with hamartoma (3%), 3 patients with hydatid liver cysts (3%), 2 patients with adult polycystic liver disease (APLD) (2%), and 1 patient with liver cystadenoma (1%). The mean size of the tumor was 6 cm, and 95% of the tumors were located in the left liver lobe or in the anterior segments of the right liver. Liver procedures included 38 wedge resections, 25 segmentectomies, 21 bisegmentectomies (including 20 left lateral segmentectomies), and 3 major hepatectomies. There were 9 conversions to an open approach (10%) due to bleeding in 45% of the patients. Five patients (6%) received autologous blood transfusion. There was no postoperative mortality, and the postoperative complication rate was low (5%). The mean postoperative hospital stay was 5 days (range, 2-13 days). At a mean follow-up of 13 months (median, 10 months; range, 2-58 months), all patients are alive without disease recurrence, except for the 2 patients with APLD. CONCLUSIONS: Laparoscopic resection of benign liver tumors is feasible and safe for selected patients with small tumors located in the left lateral segments or in the anterior segments of the right liver. Despite the use of a laparoscopic approach, selective indications for resection of benign liver tumors should remain unchanged. When performed by expert liver and laparoscopic surgeons in selected patients and tumors, laparoscopic resection of benign liver tumor is a promising technique.
Assuntos
Hepatectomia/métodos , Laparoscopia/métodos , Neoplasias Hepáticas/cirurgia , Adolescente , Adulto , Idoso , Equinococose Hepática/diagnóstico , Equinococose Hepática/cirurgia , Estudos de Viabilidade , Feminino , Seguimentos , Hemangioma/diagnóstico , Hemangioma/cirurgia , Hepatectomia/efeitos adversos , Humanos , Hiperplasia/diagnóstico , Hiperplasia/cirurgia , Laparoscopia/efeitos adversos , Tempo de Internação , Neoplasias Hepáticas/diagnóstico , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do TratamentoRESUMO
BACKGROUND: We compared nonenhanced and dynamic gadolinium (Gd)-enhanced magnetic resonance imaging (MRI) appearances of hepatic focal nodular hyperplasia (FNH) as depicted with breath-hold MR sequences and assessed the detectability of the individual MR sequences used. METHODS: We retrospectively reviewed 48 consecutive patients with FNH. All patients underwent nonenhanced (T1 fast low-angle shot [FLASH] and T2 half-Fourier acquisition [HASTE]) and dynamic Gd-enhanced (T1 FLASH) MRI between December 1997 and March 2000. Individual MR sequences were analyzed separately for number of lesions, signal intensity features, dynamic enhancement pattern, and the presence and enhancement profile of a central scar. Ninety-five percent confidence intervals of absolute discrepancy were calculated to define differences in lesion detection. RESULTS: Seventy-seven lesions were found in 48 patients. Nonenhanced FLASH imaging depicted 59 (76.6%) lesions in 45 patients. HASTE images showed 55 (71.4%) lesions in 44 patients. On T1- and T2-weighted images, lesions appeared predominantly hypointense (69.5%) and hyperintense (72.7%), respectively. Arterial and portal venous dominant phase Gd-enhanced MRI demonstrated all 77 lesions (100%), most of which showed hypervascular (94.8%), homogeneous (97.4%), and incomplete (except the central scar: 58.4%) enhancement in the arterial phase. Portal venous phase images showed lesion isointensity (50.6%) or moderate hyperintensity (46.8%) with complete enhancement (central scar: 94.8%). A central scar was detected on nonenhanced T1-weighted images (hypointense: 100%), T2-weighted images (hyperintense: 100%), arterial phase (hypointense: 59.7%) and portal venous phase (hyperintense: 71.4%) Gd-enhanced images in 78%, 69.1%, 77.9%, and 75.3% of tumors, respectively. CONCLUSION: Arterial and portal venous phase Gd-enhanced T1-weighted sequences are superior to nonenhanced images in the detection of FNH. Typical MRI appearances include hypointensity on T1-weighted and hyperintensity on nonenhanced T2-weighted images. Most commonly, FNH shows a homogeneous (without scar) and strong enhancement during the arterial phase, with lesion isointensity or slight hyperintensity during the portal venous phase.
Assuntos
Hiperplasia Nodular Focal do Fígado/diagnóstico , Fígado/patologia , Imageamento por Ressonância Magnética , Adulto , Meios de Contraste , Feminino , Gadolínio , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Estudos RetrospectivosRESUMO
The good tolerance of radionuclide therapy has frequently been proposed as a major advantage. This study explored the feasibility of using the EORTC QLQ-C30 questionnaire in palliative iodine-131 lipiodol therapy for hepatocellular carcinoma. Questionnaires were completed during interviews in which all symptoms, co-morbidity and medication were assessed at baseline within 1 week before (131)I-lipiodol therapy, and subsequently after 1 and 3 months, in 20 patients treated with locoregional, intra-arterial (131)I-lipiodol therapy with or without cisplatin. Principal observations were that (1) a number of important scales, i.e. overall quality of life, physical functioning and pain, worsened between 0 and 3 months after (131)I-lipiodol therapy, irrespective of tumour response, and (2) the occurrence of clinical side-effects was associated with a negative impact on quality of life and physical functioning 1 and 3 months after (131)I-lipiodol. The QLQ-C30 can be regarded as a feasible method for quality of life assessment in (131)I-lipiodol therapy for hepatocellular carcinoma and possibly in other radionuclide therapies. These observations should be related to the impact of other treatment modalities on quality of life.
Assuntos
Carcinoma Hepatocelular/psicologia , Carcinoma Hepatocelular/radioterapia , Radioisótopos do Iodo/uso terapêutico , Óleo Iodado/uso terapêutico , Cuidados Paliativos/métodos , Psicometria/métodos , Qualidade de Vida , Idoso , Carcinoma Hepatocelular/tratamento farmacológico , Quimioterapia Adjuvante/métodos , Cisplatino/uso terapêutico , Estudos de Viabilidade , Feminino , Indicadores Básicos de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Psicometria/normas , Compostos Radiofarmacêuticos/uso terapêutico , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Inquéritos e Questionários/normas , Resultado do TratamentoRESUMO
A prospective pilot trial was performed in 20 patients randomised to receive either (131)I-Lipiodol therapy alone (n=10) or (131)I-Lipiodol combined with a short low-dose cisplatin infusion (n=10), the aim being to evaluate the possible positive influence of a radiosensitiser on toxicity and tumour response. An activity of 1,354-2,128 MBq (mean 1,824 MBq) [36.6-57.5 mCi (mean 49.3 mCi)] (131)I-labelled Lipiodol was administered by selective instillation in the hepatic artery. Cisplatin was given in a dose of 30 mg/m(2) at day -1 and day +6 (day 0: (131)I-Lipiodol). The primary endpoint of this trial was toxicity of therapy; points of secondary interest were tumour response and survival at 6 months. With the use of cisplatin we found a higher percentage of stable or diminished tumour size (90%, vs 40% without). A benefit in group survival at 6 months was not evident. Low-grade stomatitis in one patient and minor changes in peripheral blood count were probably directly related to cisplatin, but its administration is unlikely to be associated with an excess of serious side-effects. The use of low-dose cisplatin infusion as a radiosensitising agent in (131)I-Lipiodol therapy for hepatocellular carcinoma seems safe and may be beneficial for tumour control. Larger patient groups are necessary for confirmation and to establish the future role of (131)I-Lipiodol in hepatocellular carcinoma.
Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/radioterapia , Cisplatino/administração & dosagem , Radioisótopos do Iodo/uso terapêutico , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/radioterapia , Carcinoma Hepatocelular/mortalidade , Quimioterapia Adjuvante , Feminino , Humanos , Infusões Intravenosas , Óleo Iodado/administração & dosagem , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Radiossensibilizantes/administração & dosagem , Compostos Radiofarmacêuticos/uso terapêutico , Resultado do TratamentoRESUMO
BACKGROUND AND OBJECTIVE: We reviewed retrospectively the anaesthetic management and perioperative course of eight right hepatectomies for living liver donation. METHODS: After preoperative psychiatric evaluation, eight ASA I-II individuals donated the right lobe of their liver to a family member. A graft-recipient body weight ratio of 0.8-1.0% was required for patient selection. Indications for liver transplantation were: hepatitis C viral-related cirrhosis in six patients; combined hepatitis C and B viral cirrhosis in one patient; multifocal hepatocellular carcinoma--four lesions, involving both liver lobes--of hepatitis C viral-related cirrhosis in another patient. Indication for adult-to-adult living-donor liver transplantation was retained in the latter because of rapid deterioration of liver disease, rare recipient's blood group and extended, unresectable hepatocellular carcinoma. Hepatitis C viral-related cirrhosis was casually the primary indication for adult-to-adult living-donor liver transplantation in this group. The condition of the donated hepatic lobe was optimized by appropriate drug and perfusion management. Preoperative investigations included: blood tests (full cell count and film, thyroid function tests, pregnancy tests, full virological tests and bacteriological cultures, and immunological typing), chest radiograph, electrocardiogram plus Doppler cardiac ultrasound, spirometry, aminopyrine breath test, liver Doppler examination, magnetic resonance imaging, angiography and cholangiography and a volumetric study of the whole liver and the right lobe. Haemoglobin and lactate concentrations, liver function tests and international normalized ratio were measured before and after operation. The volume and weight of the resected right lobe was calculated. Anaesthesia was induced with propofol 300 mL h(-1) and sufentanil 0.3 microg kg(-1) intravenously; cisatracurium, 0.15 mg kg(-1), was given to facilitate tracheal intubation. Anaesthesia was maintained during normocapnic ventilation of the lungs with oxygen 40% in air, isoflurane 1-1.5 MAC and sufentanil. Routine anaesthetic monitoring included electrocardiography, pulse oximetry, invasive blood pressure, central venous pressure, urine output, state of neuromuscular blockade and core temperature. Periods of hypotension (<80% of the preoperative blood pressure) or haemodynamic instability (requiring inotropic or vasoactive support) were registered. Total blood loss and transfusion (homologous, autologous or cell-saver blood) requirements were measured; volume replacements were derived. RESULTS: Data are presented as mean (range). There was no morbidity or mortality and no periods of intraoperative hypotension or haemodynamic instability. The operation time averaged 619 (525-780)min. Four donors were extubated in the operating room immediately after surgery; the others were extubated in the intensive care unit, where the mean extubation time was 16.3 (5-25)h after arrival. The estimated blood loss was 967 (550-1,600)mL. No homologous blood was administered; five donors received autologous blood, intraoperatively; three donors received a cell-saver blood transfusion. Intraoperative fluid replacement was with crystalloids, colloids and 4% albumin. Total urine output was 1,472 (700-3100)mL. Although intraoperative hypothermia occurred all subjects were normothermic at the end of operation. The pre- and immediately postoperative haemoglobin concentration averaged 13.6 (9.8-15.6) and 10.5 (6.9-13.0)gdL(-1), respectively. On the first postoperative day, the haemoglobin was 11.7 (8.4-15.1)gdL(-1). The donors' liver function tests were transiently elevated in the initial postoperative period. The intensive care unit discharge time was 2 (1-3) days. The hospital stay was 13 (7-17) days. There was no morbidity or mortality. CONCLUSIONS: The study demonstrates that right-lobe living-donor surgery was well tolerated, without intraoperative hypotension or haemodynamic instability, without perioperative anaesthetic or surgical complications, and with an excellent general outcome.