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1.
Transplantation ; 92(10): 1140-6, 2011 Nov 27.
Artigo em Inglês | MEDLINE | ID: mdl-21946173

RESUMO

BACKGROUND: Donation after cardiac death (DCD) has reemerged as potential way to increase donor liver availability. Earlier, programs with DCD liver transplantation used conservative donor criteria to allow safe results. Successful initial outcomes allowed extended DCD criteria to address transplant demand. METHODS: A total of 63 DCD liver grafts were used during the study period in carefully selected recipients. These were divided into two groups: "Standard" DCD within conservative criteria (n=33; age ≤60 years, body mass index <30 kg/m(2), donor warm ischemia time ≤30 min, and cold ischemia time ≤8 hr) and "Extended" DCD beyond these criteria (n=30). We compared donor and recipient characteristics and postoperative outcomes, including patient and graft survival. RESULTS: Both groups had satisfactory initial function; liver graft function at 1, 7, and 30 days after liver transplantation were similar. Median follow-up period was 25 and 18.5 months for Standard and Extended criteria DCD grafts, respectively, with 1-year patient and graft survival of 88% and 82% for the Standard group vs. 90% and 90% for the Extended. Overall, 8 of 63 (13%) patients developed biliary complications; however, the incidence was not different between the Standard and Extended groups. Seven early deaths occurred, four and three in the Standard and Extended groups, respectively. CONCLUSIONS: Recipients of DCDs beyond conventional acceptance criteria have equivalent early outcomes to standard DCD grafts. With careful selection of donors and recipients, these grafts can be safely used to expand the donor pool.


Assuntos
Morte , Transplante de Fígado , Doadores de Tecidos , Obtenção de Tecidos e Órgãos , Adulto , Colangiopancreatografia Retrógrada Endoscópica , Humanos , Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Pessoa de Meia-Idade , Reoperação
2.
Dig Surg ; 28(1): 63-73, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21293134

RESUMO

BACKGROUND: The majority of insulinomas are benign, small and intrapancreatic. Preoperative localisation is important to plan the surgical management. METHODS: We retrospectively analysed our data on the preoperative imaging, type of surgery and histopathological features of the operated patients with an insulinoma from January 1993 to March 2010. Univariate and multivariate analyses were performed to detect the predictive factors for survival following surgery. RESULTS: Forty patients were operated on for insulinoma, of which 33 were benign and 7 were malignant. The sensitivity of preoperative computed tomogram scan, magnetic resonance imaging and endoscopic ultrasound, for localising the lesions was 62, 82 and 94%, respectively. Enucleation was performed in 21 (52.5%) patients, and remaining had pancreatic resection. Hepatic resection was performed in 2 and liver transplantation in 1 patient. Morbidity and perioperative mortality was 17 (42.5%) and 1 (2.7%), respectively. The overall 5- and 10-year survival was 89 and 86.5%, respectively. The presence of metastases was found to be an independent predictor of poor survival on multivariate analysis. CONCLUSION: Preoperative computed tomogram/magnetic resonance imaging and endoscopic ultrasound are sensitive in localizing the majority of insulinomas. Surgery offers a good long-term survival, even in patients with malignant insulinoma.


Assuntos
Endossonografia , Insulinoma/diagnóstico , Insulinoma/cirurgia , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Procedimentos Cirúrgicos do Sistema Digestório/efeitos adversos , Feminino , Humanos , Insulinoma/mortalidade , Tempo de Internação , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Metástase Neoplásica , Fístula Pancreática/etiologia , Neoplasias Pancreáticas/mortalidade , Valor Preditivo dos Testes , Estudos Retrospectivos , Taxa de Sobrevida , Tomografia Computadorizada por Raios X , Adulto Jovem
3.
Ann Surg ; 253(3): 553-60, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21217507

RESUMO

INTRODUCTION: A majority of bile duct injuries (BDI) sustained during laparoscopic cholecystectomy require formal surgical reconstruction, and traditionally this repair is performed late. We aimed to assess long-term outcomes after repair, focusing on our preferred early approach. METHODS: A total of 200 BDI patients [age 54(20-83); 64 male], followed up for median 60 (5-212) months were assessed for morbidity. Factors contributing to this were analyzed with a univariate and multivariate analysis. RESULTS: A total of 112 (56%) patients were repaired by specialist hepatobiliary surgeons [timing of repair: immediate, n = 28; early (<21 days), n = 43; and late (>21 days) n = 41], whereas 45 (22%) underwent repair by nonspecialist surgeons before specialist referral [immediate, n = 16; early, n = 26 and late, n = 03]. Outcomes after immediate and early repairs were comparable to late repairs when performed by specialists [recurrent cholangitis:11%, 12%, and 10%; P = 0.96, NS; re-stricture:18%,5%, and 29%; P = 0.01; nonsurgical intervention: 14%, 5%, and 24%; P<0.03; redo surgery: 4%, 2%, and 5%; P = 0.81, NS; overall morbidity: 21%, 14%, and 39%; P<0.02]. On multivariate analysis, immediate and early repairs done by nonspecialist surgeons were independent risk factors (P < 0.05) for recurrent cholangitis [50% and 27%], re-stricturing (75% and 61%), redo reconstructions (31% and 61%), and overall morbidity (75% and 84%). CONCLUSION: Immediate and early repair after BDI results in comparable, if not better long-term outcomes compared to late repair when performed by specialists.


Assuntos
Ductos Biliares Extra-Hepáticos/lesões , Ductos Biliares Extra-Hepáticos/cirurgia , Procedimentos Cirúrgicos do Sistema Biliar , Colecistectomia Laparoscópica/efeitos adversos , Doença Iatrogênica , Complicações Intraoperatórias/cirurgia , Equipe de Assistência ao Paciente , Complicações Pós-Operatórias/cirurgia , Especialidades Cirúrgicas , Adulto , Idoso , Idoso de 80 Anos ou mais , Diagnóstico Precoce , Inglaterra , Feminino , Seguimentos , Humanos , Complicações Intraoperatórias/diagnóstico , Complicações Intraoperatórias/mortalidade , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/mortalidade , Estudos Prospectivos , Encaminhamento e Consulta , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
4.
Int J Surg ; 9(2): 145-9, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21029795

RESUMO

OBJECTIVES: Whilst there are theoretical benefits from pre-operatively draining the biliary tree prior to pancreatoduodenectomy (PD), the current literature does not support this intervention. The aim of this study was to explore the relationship between pre-operative stenting, bactibilia and outcome in a large United Kingdom tertiary referral practice. METHODS: Patients undergoing PD were identified from a prospectively maintained database. The presence or absence of a stent prior to PD, and the results of bile cultures taken at PD were related to the subsequent post-operative course and the development of complications. RESULTS: 280 patients underwent PD for periampullary malignancies, all of whom presented with jaundice. 118 patients were stented prior to referral (98 ERCP, 20 PTC). Bile cultures were positive more frequently in the stent group (83% vs. 55%; p = 0.000002) and bactibilia was more common after ERCP than PTC (83% vs. 56%; p = 0.006). The overall prevalence of complications was 54% in the stented and 41% in the non-stented group (p = 0.03) with statistical significance achieved for pancreatic leak (p = 0.013) and haemorrhagic complications (p = 0.03). Comparing stent with no stent, there as no difference in the 30-day mortalities (8.5% vs. 6.8%; p = 0.6) or the 1-year mortality rates (35% vs. 28%; p = 0.21). Mortality rates in the infection versus no infection groups were comparable at 30 days (8.5% vs. 5.5%; p = 0.21), and at 1 year (30.7% vs. 26.4%; p = 0.25). CONCLUSIONS: Pre-operative stent insertion prior to PD is associated with increased morbidity but not mortality and this is greatest for stents placed at ERCP.


Assuntos
Pancreaticoduodenectomia , Complicações Pós-Operatórias/epidemiologia , Cuidados Pré-Operatórios/instrumentação , Stents/efeitos adversos , Adulto , Idoso , Idoso de 80 Anos ou mais , Bile/microbiologia , Colangiografia , Colangiopancreatografia Retrógrada Endoscópica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/tratamento farmacológico , Complicações Pós-Operatórias/microbiologia , Cuidados Pré-Operatórios/métodos , Estudos Retrospectivos , Stents/microbiologia
5.
JAMA ; 304(10): 1073-81, 2010 Sep 08.
Artigo em Inglês | MEDLINE | ID: mdl-20823433

RESUMO

CONTEXT: Adjuvant fluorouracil has been shown to be of benefit for patients with resected pancreatic cancer. Gemcitabine is known to be the most effective agent in advanced disease as well as an effective agent in patients with resected pancreatic cancer. OBJECTIVE: To determine whether fluorouracil or gemcitabine is superior in terms of overall survival as adjuvant treatment following resection of pancreatic cancer. DESIGN, SETTING, AND PATIENTS: The European Study Group for Pancreatic Cancer (ESPAC)-3 trial, an open-label, phase 3, randomized controlled trial conducted in 159 pancreatic cancer centers in Europe, Australasia, Japan, and Canada. Included in ESPAC-3 version 2 were 1088 patients with pancreatic ductal adenocarcinoma who had undergone cancer resection; patients were randomized between July 2000 and January 2007 and underwent at least 2 years of follow-up. INTERVENTIONS: Patients received either fluorouracil plus folinic acid (folinic acid, 20 mg/m(2), intravenous bolus injection, followed by fluorouracil, 425 mg/m(2) intravenous bolus injection given 1-5 days every 28 days) (n = 551) or gemcitabine (1000 mg/m(2) intravenous infusion once a week for 3 of every 4 weeks) (n = 537) for 6 months. MAIN OUTCOME MEASURES: Primary outcome measure was overall survival; secondary measures were toxicity, progression-free survival, and quality of life. RESULTS: Final analysis was carried out on an intention-to-treat basis after a median of 34.2 (interquartile range, 27.1-43.4) months' follow-up after 753 deaths (69%). Median survival was 23.0 (95% confidence interval [CI], 21.1-25.0) months for patients treated with fluorouracil plus folinic acid and 23.6 (95% CI, 21.4-26.4) months for those treated with gemcitabine (chi(1)(2) = 0.7; P = .39; hazard ratio, 0.94 [95% CI, 0.81-1.08]). Seventy-seven patients (14%) receiving fluorouracil plus folinic acid had 97 treatment-related serious adverse events, compared with 40 patients (7.5%) receiving gemcitabine, who had 52 events (P < .001). There were no significant differences in either progression-free survival or global quality-of-life scores between the treatment groups. CONCLUSION: Compared with the use of fluorouracil plus folinic acid, gemcitabine did not result in improved overall survival in patients with completely resected pancreatic cancer. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00058201.


Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Quimioterapia Adjuvante , Desoxicitidina/análogos & derivados , Neoplasias Pancreáticas/tratamento farmacológico , Adenocarcinoma/cirurgia , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Desoxicitidina/efeitos adversos , Desoxicitidina/uso terapêutico , Progressão da Doença , Feminino , Fluoruracila/administração & dosagem , Humanos , Infusões Intravenosas , Injeções Intravenosas , Leucovorina/administração & dosagem , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/cirurgia , Qualidade de Vida , Análise de Sobrevida , Gencitabina
6.
Transpl Int ; 23(11): 1113-9, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20497402

RESUMO

The evidence on the state of 'haemostasis' at the time of liver transplantation (LT) is conflicting, with recent publications that suggest a hypercoagulable state, in contrast to traditionally held views. These findings raise the issue of thrombo-embolic complications after LT, an area of interest which has received little attention in recent published literature. We therefore conducted a retrospective review of our experience of 3000 liver transplants over 25 years. Our prospective transplant database was reviewed to find all patients who were suspected to have had a pulmonary embolism (PE) during or following LT. Paediatric transplants were excluded. A part of this database was cross referenced against hospital records to corroborate its accuracy. Clinical records of all these patients were reviewed and relevant aspects collated and analyzed. Following exclusion of the paediatric recipients, 2 149 adults were reviewed to find 36 patients in whom a PE was suspected (median age 49), 21 of whom were within 90 days of transplant (median duration 22 days). PE was ruled out in 10, unconfirmed in two, confirmed in eight patients; and in one, air embolism was found. All PEs occurred in hospital, but aetiology of liver failure was varied. Of note, two patients died of an on-table PE and one patient of chronic rejection/disease recurrence (Primary Sclerosing Cholangitis). The remaining five are still alive (median survival of 65 months). Although thromboprophylaxis is now routine in our unit, its use in these patients could not be confirmed from records available. Fifteen PE were suspected and confirmed after 90 days from transplant (six within, and nine out with the first year). Acute PE in the setting of LT has an incidence rate in our series of 0.37% that would appear to be lower than previously reported and lower than one would expect after a 'major complex' category operation. This potentially suggests that the overall haemostatic function in these patients is still weighted towards hypocoagulation with the resultant risk of excessive bleeding. Aetiology of liver disease did not seem to confer a higher risk in our series. The prognosis after post-operative PE appears good although sudden death due to an on-table embolism is a rare but significant risk.


Assuntos
Falência Hepática/terapia , Transplante de Fígado/métodos , Embolia Pulmonar/etiologia , Adulto , Feminino , Rejeição de Enxerto , Humanos , Falência Hepática/complicações , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Recidiva , Estudos Retrospectivos , Risco , Fatores de Tempo , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento
7.
Ann R Coll Surg Engl ; 92(4): 295-301, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20385044

RESUMO

INTRODUCTION: We assessed the incidence and outcome of pancreaticoduodenectomy for patients with a pre-operative benign diagnosis and in patients who had an unexpected diagnosis of benign disease following resection. We have also compared how the introduction of endoscopic ultrasound fine needle aspiration (EUS-FNA) has altered our pre-operative assessment. PATIENTS AND METHODS: Between January 1997 and April 2006, 499 patients underwent pancreaticoduodenectomy at the Queen Elizabeth Hospital. Data were collected prospectively. A further 85 patients between 2006 and 2008 had a different diagnostic approach (after imaging these patients have been also studied by EUS-FNA). RESULTS: Overall, 78 (15.6%) patients had no malignant disease on final histology. Out of 459 patients who underwent pancreaticoduodenectomy for presumed malignancy, 49 (10.6%) had benign disease (sensitivity, 97%; positive predictive value, 89%). In a further 40 patients with a pre-operative benign diagnosis, we found 11 cases (27%) of malignancy (sensitivity, 37%; negative predictive value, 72%). Following the introduction of EUS-FNA, the sensitivity and specificity of the diagnostic work were 92% and 75%, respectively (positive predictive value, 93%; negative predictive value, 63%). The median follow-up was 35 months (range, 1-116 months). CONCLUSIONS: Prior to the introduction of EUS-FNA, a significant number of patients, in whom pancreaticoduodenectomy is carried out for suspected benign disease, turn out to have an underlying malignancy. The use of EUS-FNA has improved the specificity of diagnostic work-up.


Assuntos
Biópsia por Agulha Fina/métodos , Pancreatopatias/cirurgia , Pancreaticoduodenectomia , Ultrassonografia de Intervenção/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Algoritmos , Reações Falso-Negativas , Reações Falso-Positivas , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pancreatopatias/diagnóstico por imagem , Pancreatopatias/patologia , Neoplasias Pancreáticas/diagnóstico por imagem , Neoplasias Pancreáticas/patologia , Neoplasias Pancreáticas/cirurgia , Pancreatite Crônica/diagnóstico por imagem , Pancreatite Crônica/patologia , Valor Preditivo dos Testes , Estudos Prospectivos , Adulto Jovem
8.
J Trauma ; 68(1): 84-9, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20065762

RESUMO

BACKGROUND: An earlier liver trauma audit (52 patients) noted that 50% were surgically managed at referring hospitals with a high morbidity and mortality, after which a regional referral and management algorithm was implemented in 2001. This study aims to reaudit specialist-managed liver trauma outcomes. METHODS: Prospective analysis of 99 patients (68 male) treated for liver injury (LI) between 2001 and 2008. Patient characteristics, management, and outcome results of these were compared with the results of previous audit. LI severity was determined by computed tomography, operative findings, and classified according to liver Organ Injury Scale. RESULTS: As implementation of guidelines, referrals increased from 5.2 patients/yr to 14.1 patients/yr, while LI profile was unchanged. Fewer patients were managed surgically with lower surgical intervention at referring hospitals (26 of 52 [50%] vs. 29 of 77 [38%]; p = 0.2). There has been a decrease in liver resection rates (14 of 26 [54%] vs. 3 of 37 [8%]; p = 0.0001]), overall mortality rate (12 of 52 [23%] vs. 11 of 99 [11%]; p = 0.059), and postoperative deaths. CONCLUSION: This reaudit confirms the role of nonoperative management of liver trauma. Early use of computed tomography scan with specialist discussion, selective use of perihepatic packing, and transfer to a specialist unit should be standard practice in the management of complex liver trauma.


Assuntos
Hospitais Gerais , Fígado/lesões , Medicina , Transferência de Pacientes , Encaminhamento e Consulta , Adolescente , Adulto , Idoso , Algoritmos , Feminino , Hepatectomia , Hospitais de Distrito , Humanos , Tempo de Internação , Masculino , Auditoria Médica , Pessoa de Meia-Idade , Traumatismo Múltiplo/terapia , Tomografia Computadorizada por Raios X , Ferimentos não Penetrantes/diagnóstico , Ferimentos não Penetrantes/cirurgia , Ferimentos não Penetrantes/terapia , Adulto Jovem
9.
Dig Liver Dis ; 42(3): 205-9, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19913466

RESUMO

INTRODUCTION: Bile leaks are a frequent complication of adult split liver transplantation. We compared surgical complications in patients who had the cut surface of the donor liver treated with a patch to those in whom the cut surface of the liver was treated with fibrin glue. MATERIAL AND METHODS: Two consecutive cohorts of 16 patients undergoing adult right lobe split liver transplant were compared. In the first cohort, the liver surface was treated with fibrin glue and in the second the liver surface was treated with TachoSil fibrinogen-thrombin-collagen patches. Post-operative complications were analyzed. RESULTS: Bile leaks were significantly fewer among patients in whom the cut surface of the liver was treated with fibrin-collagen sponge compared to those where fibrin glue was used on the cut surface: 1/16 (6.25%) vs. 7/16 (43.75%), respectively; p=0.03. There were some differences in biliary anastomotic techniques used in the two groups but 7/8 leaks (87.5%) arose from the cut surface, and only one was from the anastomosis. CONCLUSION: Using a fibrinogen-thrombin-collagen sponge patch may reduce bile leaks from the cut surface of the liver during adult right lobe split liver transplants.


Assuntos
Ductos Biliares Intra-Hepáticos/cirurgia , Adesivo Tecidual de Fibrina/uso terapêutico , Fibrinogênio/uso terapêutico , Hemostáticos/uso terapêutico , Transplante de Fígado/métodos , Trombina/uso terapêutico , Adolescente , Adulto , Idoso , Seleção do Doador , Combinação de Medicamentos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto
10.
Clin Transplant ; 24(1): 98-103, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-19878514

RESUMO

BACKGROUND: Split liver transplantation (SLT) is technically demanding and requires good communication between transplant centers. The recipient surgeon receiving a shipped split liver needs detailed information on allocation of inflow and outflow vessels. We describe the first use of an image transmission system to facilitate SLT. METHODS: Twenty cadaver livers undergoing ex situ splitting were studied. Fifteen were shared between the geographically separate Birmingham adult and pediatric centers and five were shared with other UK centers. RESULTS: A total of six to eight images of each split graft were taken with a camera at standardized settings using the National Organ Retrieval Imaging System (NORIS), showing details of appearance, size, and anatomy of allocated inflow and outflow vessels. These were uploaded using a personal digital assistant to a secure website (http://www.noris.org.uk). The remote recipient surgeon then viewed these images by logging onto the password-protected website. Minimum time interval between division of the hilar vessels and completion of the split procedure was two h, allowing remote surgeon to view their allocated "shipped" graft in advance of commencing surgery. CONCLUSION: This advanced yet simple image transmission system has the potential for routine application in transplant surgery, not only for splitting but also for reporting injuries and graft steatosis.


Assuntos
Internet , Hepatopatias/cirurgia , Transplante de Fígado , Fotografação , Consulta Remota/métodos , Coleta de Tecidos e Órgãos , Adolescente , Adulto , Idoso , Cadáver , Criança , Pré-Escolar , Estudos de Coortes , Computadores de Mão , Feminino , Humanos , Lactente , Hepatopatias/mortalidade , Hepatopatias/patologia , Masculino , Pessoa de Meia-Idade , Obtenção de Tecidos e Órgãos/organização & administração , Adulto Jovem
12.
Surg Today ; 38(10): 873-8, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18820860

RESUMO

Although it is generally accepted that aging increases postoperative morbidity and mortality rates, the underlying mechanism remains unknown. The present review evaluates the clinical implications of remodeling the immunoinflammatory status with reference to inflammaging and tumor-specific hyperinflammation. We conducted a Medline/PubMed search for articles investigating factors related to aging and their effects on postoperative outcomes. Inflamm-aging results in both decreased immunity to exogenous antigens and increased auto-reactivity, whereby the beneficial effects of inflammation devoted to the neutralization of harmful agents early in life become detrimental late in life. Cancer also represents an immunologic challenge, which upregulates the systemic immune response. Thus, tumor-related hyperinflammation and inflamm-aging synergistically lead to the systemic priming of inflammatory mediators preoperatively; then, surgical stress acts as the second hit, increasing the risk of an exaggerated postoperative inflammatory response. Age-related molecular events may place elderly patients at greater risk of postoperative complications which could result in death. For regulating uncontrolled hyperinflammation, the clinical advantages of perioperative immunonutrition or steroids have been advocated; however, double-blind, randomized, controlled trials of pharmacologic modulation therapy are needed.


Assuntos
Envelhecimento/imunologia , Sistema Imunitário/fisiologia , Neoplasias/imunologia , Neoplasias/cirurgia , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/fisiologia , Humanos , Inflamação/imunologia , Mediadores da Inflamação/imunologia , Longevidade/imunologia
13.
Ann Surg Oncol ; 14(7): 2088-96, 2007 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-17453298

RESUMO

BACKGROUND: Survival after surgery for pancreas cancer remains low. This improves with adjuvant chemotherapy, but up to 30% patients do not receive the prescribed treatment. Neoadjuvant therapy may increase the proportion of patients who receive all treatment components, may downstage disease before surgery, and may provide early treatment of micrometastases. This randomized phase 2 study compares gemcitabine-based chemotherapy regimens to identify the most promising regimen for future study. METHODS: Fifty patients with potentially resectable pancreas lesions were enrolled onto the study. Twenty-four patients were randomized to gemcitabine (1000 mg/m(2)) every 7 days for 43 days; 26 patients were randomized to gemcitabine (1000 mg/m(2)) and cisplatin (25 mg/m(2)), 7 to the original schedule (omitting day 22) and 19 to a revised schedule due to neutropenia (omitting days 15 and 36). The primary outcome measure was resection rate. RESULTS: Patients who were allocated to gemcitabine received a median of 85% of the planned dose. Patients who were allocated to combination treatment received a median of 88% and 92% of the planned gemcitabine and cisplatin doses, respectively. There were 10 episodes of grade III/IV hematological toxicity in each group. Twenty-seven patients (54%) underwent pancreatic resection, 9 (38%) in the gemcitabine arm and 18 (70%) in the combination arm, with no increase in surgical complications. To date, 34 patients (68%) have died. Twelve-month survival for the gemcitabine and combination groups was 42% and 62%. CONCLUSIONS: Chemotherapy can be safely administered before pancreatic surgery. Combination therapy with gemcitabine and cisplatin is associated with a high resection rate and an encouraging survival rate, suggesting that further study is warranted.


Assuntos
Adenocarcinoma/terapia , Antineoplásicos/administração & dosagem , Cisplatino/administração & dosagem , Desoxicitidina/análogos & derivados , Neoplasias Pancreáticas/terapia , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/cirurgia , Adulto , Idoso , Desoxicitidina/administração & dosagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Pancreatectomia , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/cirurgia , Gencitabina
14.
Transpl Int ; 20(8): 659-65, 2007 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17343687

RESUMO

To analyze the outcomes between identical and compatible liver transplantation (OLT) for fulminant hepatic failure (FHF) from September 1984 to November 2005. The patients were divided in three groups; group 1 (identical), group 2 (compatible) and group 3 (incompatible), according to the donor-recipient blood type matching. We analyzed several outcomes regarding mortality, patient and graft survival, incidence of acute graft rejection during the first postoperative month (30 days), incidence of biliary complications and indications of re-transplantation. We also analyzed the relationship of Coomb's positive test with postoperative hemolysis to all the above mentioned factors. During the study period, 168 males and 112 females underwent their first OLT for FHF, with 37.1% overall mortality and 42.1% overall graft failure rate. The results between group 1 (203 patients) and group 2 (73 patients) were comparable. A statistically significant difference was recorded in 1 year and overall graft survival between group 1 and group 2 (P = 0.049 and log-rank = 0.035 respectively). Coomb's positive test did not influence the outcomes. OLT in FHF can be safely carried out whether the donor organs are identical or compatible. Hemolysis (Coomb's positive test) after identical or compatible OLT does not influence the outcomes.


Assuntos
Rejeição de Enxerto/epidemiologia , Sobrevivência de Enxerto , Falência Hepática Aguda/cirurgia , Transplante de Fígado , Adolescente , Adulto , Idoso , Feminino , Seguimentos , Humanos , Incidência , Falência Hepática Aguda/mortalidade , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taxa de Sobrevida , Transplante Homólogo , Resultado do Tratamento , Reino Unido/epidemiologia
16.
Transplantation ; 82(10): 1304-11, 2006 Nov 27.
Artigo em Inglês | MEDLINE | ID: mdl-17130779

RESUMO

BACKGROUND: Arginine is an amino acid having a central role in the metabolism of urea and nitric oxide in the liver. We present our findings of the behavior of these metabolites during the process of transplantation of the liver. METHODS: Urea, arginine, ornithine, citrulline, gamma-aminobutyric acid, glutamate, and glutamine levels in 15 livers were studied during the process of retrieval, following storage during the backtable procedure, and for 48 hours postreperfusion using microdialysis. Arginase levels in donor and recipient serum were also analyzed using an enzyme-linked immunosorbent assay specific for type I human arginase. Data was analyzed using one-way analysis of variance, with post-hoc comparison to the value at two hours using Dunnett's test (P < 0.05 significant). RESULTS: Levels of metabolites measured in the donor liver were seen to decline significantly in the stored liver. Immediately postreperfusion, there was a significant rise in arginase I levels in the recipient serum with low arginine levels recorded in the liver. The high arginase I levels significantly reduced six hours postreperfusion with a corresponding rise in extracellular arginine levels. Urea levels in the graft increased significantly immediately postreperfusion. CONCLUSIONS: Arginine levels were found to be low with correspondingly high serum arginase I levels in the early postreperfusion phase. High serum arginase I levels in early postreperfusion may influence nitric oxide production in this phase since considering Vmax and Km values, arginase I could compete with inducible nitric oxide synthase for arginine. Urea metabolism in the liver recommences immediately postreperfusion.


Assuntos
Arginina/metabolismo , Transplante de Fígado/fisiologia , Ureia/metabolismo , Adolescente , Adulto , Idoso , Morte Encefálica , Cadáver , Citrulina/metabolismo , Ácido Glutâmico/metabolismo , Glutamina/metabolismo , Humanos , Microdiálise , Pessoa de Meia-Idade , Ornitina/metabolismo , Doadores de Tecidos/estatística & dados numéricos , Ácido gama-Aminobutírico/metabolismo
17.
Transpl Int ; 19(10): 795-801, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16961770

RESUMO

Conventional orthotopic liver transplantation (CON-LT) involves resection of recipient cava, usually with extra-corporeal circulation (veno-venous bypass, VVB), while in the piggyback technique (PC-LT) the cava is preserved. Along with a temporary portacaval shunt (TPCS), better haemodynamic maintenance is purported with PC-LT. A prospective, consecutive series of 384 primary transplants (2000-2003) were analysed, 138 CON-LT (with VVB) and 246 PC-LT (54 without TPCS). Patient/donor characteristics were similar in the two groups. PC-LT required less usage of fresh-frozen plasma and platelets, intensive care stay, number of patients requiring ventilation after day 1 and total days spent on ventilator. The results were not different when comparing, total operating and warm ischaemia time (WIT), red cell usage, requirement for renal support, day 3 serum creatinine and total hospital stay. TPCS had no impact on outcome other than WIT (P = 0.02). Three patients in PC-LT group (three of 246;1.2%) developed caval outflow obstruction (P = 0.02). There was no difference in short- or long-term graft or patient survival. PC-LT has an advantage over CON-LT unsing VVB with respect to intraoperative blood product usage, postoperative ventilation requirement and ITU stay. VVB is no longer required and TPCS may be used selectively in adult transplantation.


Assuntos
Veias Hepáticas/cirurgia , Transplante de Fígado/métodos , Veia Cava Inferior/cirurgia , Adulto , Feminino , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo , Doadores de Tecidos , Resultado do Tratamento , Procedimentos Cirúrgicos Vasculares
18.
Transplantation ; 82(2): 227-33, 2006 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-16858286

RESUMO

BACKGROUND: The impact of the process of liver transplantation on glucose metabolism in the graft was studied using microdialysis. METHODS: Microdialysis catheters were inserted into 15 human livers to monitor metabolic changes that took place during organ harvest, the process of backtable preparation of the graft, and following implantation in the recipient where it remained in situ for 48 hours. The cannula was perfused with isotonic solution and hourly samples of perfusate were collected and analyzed. RESULTS: Six livers showed serum biochemical evidence of ischemia/reperfusion (IR) injury with 24 hours aspartate transaminase (AST) levels >2000 IU/L (Group A) whereas the remaining patients showed little evidence of IR injury (Group B). In Group A, lactate levels in the donor microdialysate rose to >6 mM (P < 0.05), were significantly higher during backtable preparation of the liver (>15 mM; P < 0.03), and took longer to normalize in the recipient following implantation (18 vs. 8 hours, P < 0.03) than lactate levels of the livers of patients in Group B who did not develop ischemia reperfusion injury. No significant differences were observed in glucose, pyruvate, or glycerol concentrations between the two groups. CONCLUSIONS: Interstitial lactic acidosis in the donor allograft is associated with significant reperfusion injury on implantation.


Assuntos
Acidose Láctica/epidemiologia , Transplante de Fígado/efeitos adversos , Preservação de Órgãos , Traumatismo por Reperfusão/epidemiologia , Coleta de Tecidos e Órgãos/efeitos adversos , Humanos , Período Intraoperatório , Hepatopatias/classificação , Hepatopatias/cirurgia , Testes de Função Hepática , Microdiálise , Monitorização Fisiológica , Transplante Homólogo
19.
Dig Surg ; 23(1-2): 103-9, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16763375

RESUMO

BACKGROUND: The aim of this study was to look into our experience of resection for hepatocellular carcinomas (HCCs) in a tertiary Hepatobiliary and Liver Transplant Unit in the UK. METHODS: A retrospective analysis of our prospective database was carried out. RESULTS: 715 cases of HCC were seen. 100 (13.9%) underwent hepatic resection and 159 (22.2%) orthotopic liver transplant. The 1-, 3- and 5-year overall survival following resection was 75.3, 37.0 and 21.5% respectively. Factors affecting long-term survival included resection margin (p < 0.001), recurrence (p < 0.007), alpha-fetoprotein >50 (p < 0.001) and serum albumin (p < 0.03). On multivariate analysis, recurrence (p < 0.001) and histological grade (p < 0.044) were significant. The 1- and 3-year recurrence rates were 27.3 and 72.5% respectively. Histological grade (p < 0.007), alpha-fetoprotein >50 (p < 0.033), female gender (p < 0.016) and portal vein involvement (p < 0.016) were significant in recurrence. CONCLUSIONS: Resection data from the East may not be comparable to the West owing to the higher transplant activity in the latter. Liver function tests and imaging would be sufficient to assess liver function prior to hepatic resection. HCC with cirrhosis should be assessed by a transplant unit prior to any treatment. The MELD (Model for End-Stage Liver Disease) score would be a valuable preoperative tool in the assessment of cirrhotics.


Assuntos
Carcinoma Hepatocelular/cirurgia , Hepatectomia , Neoplasias Hepáticas/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Feminino , Humanos , Cirrose Hepática/complicações , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Transplante de Fígado , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Prognóstico , Taxa de Sobrevida
20.
Liver Transpl ; 12(5): 839-44, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16628692

RESUMO

Biliary complications are common following split liver transplantation (SLT). We analyzed the incidence, treatment, and outcome of biliary complications following adult right lobe ex vivo SLT performed between November 1992 and January 2005. There were 72 patients, of which 70 were analyzed. Early postoperative deaths resulted in 2 being excluded from the analysis. There were 44 males (median age, 48 yr; range, 19-70 yr). Biliary reconstruction was by duct-to-duct (DD) anastomosis in 52 (74%) and Roux-en-Y hepaticojejunostomy (RYHJ) in 18 (26%) patients. Until mid-2001, no T-tube was used for DD anastomosis (DD/non-T-tube) in 26 (37%) patients; subsequent to this, DD over a T-tube (DD/T-tube) was performed in 26 (37%) patients. Eighteen (26%) biliary complications occurred in 16 patients. Two anastomotic leaks of RYHJ were associated with hepatic artery thrombosis. The most frequent biliary complication was parenchymal radical leak from the transected liver surface (11%; 8/70), with anastomotic leaks in 6% (4/70) and strictures in 4% (3/70). There were also 2 cases of biliary leaks from T-tube exit site following T-tube removal, and 1 leak from the donor cystic duct stump. DD anastomosis without a T-tube was associated with a higher rate of cut surface and anastomotic biliary leaks (7/26), compared to the DD/T-tube group (1/26; P = 0.05). Six patients (9%) died following biliary complications, including 3 due to cut surface leaks in the DD/non-T-tube group and 2 cases with fatal biliary peritonitis following T-tube removal. A patient in the RYHJ group died due to biliary sepsis associated with hepatic artery thrombosis. In conclusion, biliary complications following right lobe ex vivo SLT are associated with significant morbidity and mortality. Our results suggest that T-tube biliary drainage of DD anastomosis may reduce parenchymal cut surface and biliary anastomotic leaks. However, bile leak following T-tube removal could lead to potentially fatal biliary peritonitis, which should always be anticipated and treated promptly.


Assuntos
Doenças dos Ductos Biliares/etiologia , Transplante de Fígado/efeitos adversos , Anastomose Cirúrgica/efeitos adversos , Humanos , Fígado/irrigação sanguínea , Transplante de Fígado/métodos , Transplante de Fígado/mortalidade , Estudos Retrospectivos
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