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1.
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
2.
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
3.
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
4.
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
5.
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
6.
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
8.
Transplantation ; 73(1): 145-7, 2002 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-11792995

RESUMO

BACKGROUND: Gastric zygomycosis is a rare but potentially lethal complication in transplant patients. Forty-two cases of gastric mucormycosis have been described in the literature, with a mortality of 98%. METHODS: We report of a case of gastric mucormycosis in a 45-year-old male undergoing liver transplantation for alcohol-induced cirrhosis. The diagnosis was made 20 days after transplantation in a biopsy of a bleeding gastric ulcer identified during a reoperation for a common bile duct stricture. RESULTS: After the surgical procedure and therapy with amphotericin B, the patient made a good recovery and is alive and well 2 years after transplantation. CONCLUSIONS: Gastric mucormycosis should be suspected in those patients in whom gastrointestinal symptoms such a pain or bleeding are present. Because the diagnosis is dependent on histology, the importance of biopsy cannot be underestimated. Once diagnosed, a successful outcome depends on effective treatment with amphotericin.


Assuntos
Gastroenteropatias/microbiologia , Transplante de Fígado/efeitos adversos , Complicações Pós-Operatórias/microbiologia , Zigomicose/diagnóstico , Anfotericina B/uso terapêutico , Antifúngicos/uso terapêutico , Biópsia , Seguimentos , Gastroenteropatias/diagnóstico , Gastroenteropatias/tratamento farmacológico , Humanos , Cirrose Hepática Alcoólica/cirurgia , Masculino , Pessoa de Meia-Idade , Reoperação , Úlcera Gástrica/microbiologia , Úlcera Gástrica/patologia , Fatores de Tempo , Resultado do Tratamento , Zigomicose/tratamento farmacológico
9.
Transplantation ; 74(10): 1386-90, 2002 Nov 27.
Artigo em Inglês | MEDLINE | ID: mdl-12451236

RESUMO

The procurement of left-lateral-segment grafts from living donors for transplantation in children is performed by retaining only the left branches of the artery and veins. New techniques and the implementation of microsurgery in the transplant operation made this procedure a successful approach. However, controversy persists about using such an approach for division of liver grafts from cadaveric donors, and many teams prefer retaining the main arterial trunk with the left split graft, with or without the main portal vein trunk. Since 1998, in our center, when a donor-liver graft is divided we prefer retaining the main vessels with the right split graft if graft vascular anatomy is favorable. After 1998, 40 liver grafts from cadaveric donors were divided, and all divisions were performed ex situ. This experience was retrospectively reviewed to compare the outcome of left split grafts prepared for implantation with the left vasculature only (group A), or with the main arterial supply (group B). A single vascular complication occurred (one hepatic artery thrombosis in group B). Three patients died (one in group A and two in group B) and three other grafts were lost (one in group A and two in group B). One-year and 3-year graft survival rates were 94% and 86% in group A, and 83% and 83% in group B, respectively (not significantly [NS] different). We conclude that left split grafts can be safely transplanted with the left vascular supply only, provided that division is guided by careful anatomical evaluation and that vascular reconstructions are adequate.


Assuntos
Transplante de Fígado/métodos , Adolescente , Adulto , Criança , Sobrevivência de Enxerto , Humanos , Fígado/fisiopatologia , Transplante de Fígado/efeitos adversos , Pessoa de Meia-Idade
10.
Transplantation ; 77(3): 411-6, 2004 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-14966416

RESUMO

BACKGROUND: Exactly what constitutes a marginal donor remains ill defined. The authors set out to create a scoring system that objectively classifies a donor as marginal or nonmarginal and to define what the maximum acceptable preservation period is for the marginal liver to minimize early graft dysfunction. METHODS: The authors performed an analysis on data collected prospectively of 397 cadaveric liver transplants. Both univariate and multivariate analyses were performed on donor, recipient, and perioperative factors with relation to early allograft dysfunction. A score was developed that classified donors into marginal and nonmarginal populations, and the influence of cold ischemia was determined for each group. RESULTS: Multivariate analysis-determined donor age and steatosis (moderate to severe) were independent predictors of deranged function. This enabled the authors to produce a scoring system to differentiate marginal donors with respect to risk of early allograft dysfunction as follows: Formula=(20.06xsteatosis)+(0.44xdonor age), cutoff 23.1. In the marginal group, the cutoff value of cold ischemia time was 12.6 hr. CONCLUSIONS: The authors developed a scoring system that classified an organ as marginal or nonmarginal depending on the donor age and degree of steatosis. Marginal livers have a strong risk of developing early allograft dysfunction with increasing cold ischemia times and should be transplanted within 12 hr. Cold ischemia time was not found to be an important factor in the development of early allograft dysfunction in nonmarginal donors.


Assuntos
Criopreservação , Fígado/fisiopatologia , Doadores de Tecidos , Adolescente , Adulto , Idoso , Envelhecimento , Criança , Fígado Gorduroso/patologia , Fígado Gorduroso/fisiopatologia , Feminino , Humanos , Fígado/patologia , Masculino , Pessoa de Meia-Idade , Modelos Biológicos , Análise Multivariada , Curva ROC , Fatores de Tempo , Obtenção de Tecidos e Órgãos/métodos
11.
Transplantation ; 75(12): 1983-8, 2003 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-12829898

RESUMO

BACKGROUND: Patients with primary sclerosing cholangitis (PSC) and inflammatory bowel disease (IBD) may have an increased risk of developing colorectal cancer (CRC) after liver transplantation (LT). We evaluated our patients with PSC after LT to identify risk factors for CRC and its impact on survival. PATIENTS AND METHODS: A total of 152 patients (108 men, 100 with IBD) with PSC who underwent 173 LTs between 1986 and May 2000 were analyzed in three groups: (1) PSC without IBD (n=52); (2) PSC with colectomy (pre-LT and at LT) (n=17, colectomy pre-LT in 13 and simultaneous colectomy at LT in four); and (3) PSC with IBD and an intact colon (n=83). The following factors were studied: age, gender, liver, and renal biochemistry, international normalized ratio, Child-Pugh stage, operative time, blood use, hospital stay, immunosuppression, risk of CRC, retransplantation rate, and mortality. RESULTS: The incidence of CRC after LT was 5.3% (8/152) compared with 0.6% (7/1,184) in non-PSC cases (P<0.001). All CRCs in the PSC group were in patients with IBD and an intact colon. The cumulative risk of developing CRC in the 83 patients with an intact colon and IBD was 14% and 17% after 5 and 10 years, respectively (PSC non-IBD group 0% risk after 10 years, P<0.06). The multivariate analysis showed three significant variables related to the risk of developing CRC: colonic dysplasia after LT (P<0.0003), duration of colitis more than 10 years (P<0.002), and pancolitis (P<0.004). The cause of death in patients with CRC was cancer related in 75% of cases with a reduced 5-year survival of 55% versus 75% without CRC (not significant). CONCLUSION: Patients with PSC undergoing LT with a long history of ulcerative colitis and pancolitis have an increased risk of developing CRC with reduced survival. We advocate long-term aggressive colonic surveillance and colectomy in selected high-risk patients with longstanding severe colitis.


Assuntos
Colangite Esclerosante/cirurgia , Neoplasias do Colo/epidemiologia , Neoplasias Colorretais/epidemiologia , Doenças Inflamatórias Intestinais/complicações , Transplante de Fígado/efeitos adversos , Transplante de Fígado/fisiologia , Adolescente , Adulto , Idoso , Criança , Colangite Esclerosante/complicações , Colectomia , Neoplasias do Colo/cirurgia , Feminino , Seguimentos , Humanos , Transplante de Fígado/mortalidade , Masculino , Reoperação , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida , Fatores de Tempo
12.
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
13.
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
14.
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
15.
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
16.
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
17.
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
18.
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
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.
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
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