169 research outputs found
Simultaneous left colectomy and standard hepatectomy reformed by laparoscopy
As abordagens laparoscópicas têm sido cada vez mais utilizadas em pacientes com câncer colorretal ou hepático. Colectomia e hepatectomia simultâneas são consideradas técnicas seguras e apresentam resultados oncológicos semelhantes independente da localização do tumor primário quando associada à ressecções hepáticas com menos de quatro metástases, uma vez que não existe aumento da morbimortalidade nem prejuízo na sobrevida. O desenvolvimento de técnicas e materiais laparoscópicos tornou a ressecção combinada do cólon e do fígado uma opção bastante atraente. O objetivo do presente estudo é demonstrar a ressecção de um tumor sincrônico de sigmoide e metástase hepática única tratada por colectomia e setorectomia lateral esquerda puramente laparoscópicaLaparoscopic approaches have been increasingly used in patients with colorectal or liver cancer. Simultaneous colectomy and hepatectomy are considered safe techniques and present similar oncological results regardless of the location of the primary tumor when there are fewer than four liver metastases, since there is no increase in morbidity or decrease in survival. The development of laparoscopic techniques and materials has made the combined resection of the colon and liver a very attractive option. The aim of this study is to demonstrate the synchronous resection of the sigmoid tumor and single liver metastasis treated by purely laparoscopic colectomy and liver left lateral sectorectomy
The intra-hepatic glissonian approach for liver ressections
The intra-hepatic glissonian approach has been considered an advance in the modern hepatic surgery by allowing a safe resection, with minor bleeding and maximum preservation of hepatic tissue. This paper explores the history, the anatomy, the techniques and how to perform and understand the intra-hepatic glissonian approaches
Single-port for laparoscopic gastric resection with a novel platform
INTRODUCTION: Laparoscopic gastrointestinal resections using single-port are possible, but triangulation problems and the need of articulated instruments difficult the procedures. AIM: To present a surgical alternative using single-port laparoscopic device on gastric resection. TECHNIQUE: The patient is placed in a supine and reverse Trendelenburg position with surgeon between patient's legs. First assistant was on the right side of the patient with the monitor placed on the patient's cranial side. With the patient under general anesthesia, a transumbilical 3 cm skin incision is performed. A single-incision advanced access platform with gelatin cap, self-retaining sleeve and wound protector is introduced through this incision. Three 5-12 mm operating ports were introduced through the single-port device. Due to the gel cap and sleeves, no articulated instruments are necessary. CO2 pneumoperitoneum is established at 12 mmHg. A rigid 30 degree 10 mm laparoscope is introduced. Operation begins with access to the lesser sac by opening the omentum along the greater curvature of the stomach using harmonic scalpel. Once the stomach is fully exposed and a stay suture is place around the tumor. Gastric wall is divided with cautery 1 cm away from the tumor. Tumor is excised. Gastric wall is sutured with two-layer running suture. No drain was used. Umbilical incision was closed. RESULTS: This procedure was used in one patient with gastric duplication. Operative time was 200 minutes. Blood loss was minimal. Recovery was uneventful and patient discharged on postoperative day 2. Final aspect of the umbilical incision was good. CONCLUSIONS: Gastric resection with single-port laparoscopic platform is feasible and may be safely performed in selected patients.</jats:p
Reduction of venous pressure during the resection of liver metastases compromises enteric blood flow: IGFBP-1 as a novel biomarker of intestinal barrier injury
OBJECTIVES: Disruption of the intestinal barrier and bacterial translocation commonly occur when intestinal blood flow is compromised. The aim of this study was to determine whether liver resection induces intestinal damage. METHODS: We investigated intestinal fatty-acid binding protein and insulin-like growth factor binding protein levels in the plasma of patients who underwent liver resection. RESULTS: We show that liver resection is associated with significant intestinal barrier injury, even if the Pringle maneuver is not performed. CONCLUSION: We propose the use of insulin-like growth factor binding protein-1 as a novel biomarker of intestinal damage in such situations
Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS): the Brazilian experience
BACKGROUND: Postoperative liver failure consequent to insufficiency of remnant liver is a feared complication in patients who underwent extensive liver resections. To induce rapid and significant hepatic hypertrophy, associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) has been recently developed for patients which tumor is previously considered unresectable. AIM: To present the Brazilian experience with ALPPS approach. METHOD: Were analyzed 39 patients who underwent hepatic resection using ALPPS in nine hospitals. The procedure was performed in two steps. The first operation was portal vein ligation and in situ splitting. In the second operation the right hepatic artery, right bile duct and the right hepatic vein were isolated and ligated. The extended right lobe was removed. There were 22 male (56.4%) and 17 female (43.6%). At the time of the first operation, the median age was 57.3 years (range: 20-83 years). RESULTS: The most common indication was liver metastasis in 32 patients (82.0%), followed by cholangiocarcinoma in three (7.7%). Two patients died (5.2%) during this period and did not undergo the second operation. The mean interval between the first and the second operation was 14.1 days (range: 5-30 days). The volume of the left lateral segment of the liver increased 83% (range 47-211.9%). Significant morbidity after ALPPS was seen in 23 patients (59.0%). The mortality rate was 12.8% (five patients). CONCLUSION: The ALPPS approach can enable resection in patients with lesions previously considered unresectable. It induces rapid liver hypertrophy avoiding liver failure in most patients. However still has high morbidity and mortality.RACIONAL: Insuficiência hepática pós-operatória devido à remanescente hepático pequeno tem sido complicação temida em pacientes que são submetidos à ressecção hepática extensa. A ligadura da veia porta associada à bipartição do fígado para hepatectomia em dois estágios (ALPPS) foi desenvolvida recentemente com a finalidade de induzir rápida e significante regeneração do fígado para pacientes em que o tumor é previamente considerado irressecável. OBJETIVO: Apresentar a experiência brasileira com o ALPPS. MÉTODO: Foram analisados 39 pacientes submetidos ao procedimento ALPPS em nove hospitais. Ele foi realizado em duas etapas. A primeira operação consistiu em ligadura do ramo direito da veia porta e bipartição hepática. Na segunda, os ramos direito da artéria hepática, via biliar e veia hepática foram ligados e o lobo hepático direito estendido foi removido. Foram 22 pacientes do sexo masculino (56,4%) e 17 do feminino (43,6%). A média de idade foi 57,3 anos (variando de 20 a 83 anos). RESULTADOS: A indicação mais comum foi metástase hepática em 32 pacientes (82,0%), seguida por colangiocarcinoma em três pacientes (7,7%). Dois morreram neste intervalo e não foram submetidos à segunda operação. O intervalo médio da primeira para a segunda operação foi de 14,1 dias (variando de 5-30 dias). O volume do segmento lateral esquerdo apresentou aumento de 83% (variando de 47-211,9%). Morbidade significante foi observada em 23 pacientes (59,0%). A mortalidade foi de 12,8% (cinco pacientes). CONCLUSÃO: O procedimento ALPPS permite ressecção hepática em pacientes com lesões consideradas previamente irressecáveis por induzir rápida hipertrofia do fígado evitando a insuficiência hepática na maioria dos pacientes. Porém ainda apresenta elevada morbidade e mortalidade.Universidade Federal do Maranhão Departamento de CirurgiaHospital Silvestre do Rio de JaneiroUniversidade Federal da ParaíbaUniversidade Federal de Minas GeraisUniversidade Federal de Ciências da Saúde de Porto AlegreUniversidade Federal de São Paulo (UNIFESP)Hospital Santa CatarinaUniversidade de São Paulo Faculdade de MedicinaHospital Sírio-Libanês São PauloUNIFESPSciEL
Laparoscopic liver resection: personal experience with 107 cases
OBJETIVO: analisar nossa experiência após 107 hepatectomias videolaparoscópicas e discutir a evolução técnica da hepatectomia laparoscópica nos últimos cinco anos. MÉTODOS: entre abril de 2007 e abril de 2012 foram realizadas 107 hepatectomias laparoscópicas em 105 pacientes. A média de idade foi 53,9 anos (17 a 85). Cinquenta e três pacientes eram do sexo masculino. Todas as intervenções foram realizadas pelos autores do trabalho. RESULTADOS: do total de 107 operações, houve necessidade de conversão para a técnica aberta em três casos (2,8%). Dezesseis pacientes (14,9%) apresentaram complicações. Dois pacientes foram a óbito, mortalidade de 1,87%. Um óbito foi decorrente de infarto maciço do miocárdio, sem relação com a hepatectomia laparoscópica, que transcorreu sem intercorrências e não apresentou conversão nem sangramento. O outro óbito foi decorrente de falha do grampeador. Vinte pacientes (18,7%) necessitaram de transfusão sanguínea. O tipo de hepatectomia mais frequente foi a bissegmentectomia, segmentos 2-3, (33 casos), seguida de hepatectomia direita (22 casos). Setenta e duas cirurgias (67,3%) foram realizadas por meio da técnica de acesso Glissoniano. CONCLUSÃO: a divulgação dos resultados é de extrema importância. As dificuldades técnicas, complicações e mesmo mortalidade, inerentes a este complexo tipo de cirurgia, necessitam ser divulgados com clareza. Este procedimento deve ser realizado em centro especializado e por equipe capacitada. A técnica de acesso Glissoniano por via laparoscópica, descrita pela nossa equipe, facilita a realização de hepatectomias anatômicas
Laparoscopic Resection of Hilar Cholangiocarcinoma
Background: Surgical resection is the only curative treatment for hilar cholangiocarcinoma. Laparoscopic hepatectomy has been used to treat several types of liver neoplasms. However, technical issues have limited the adoption of laparoscopy for the treatment of hilar cholangiocarcinoma. To date there is only one report of minimally invasive procedure for hilar cholangiocarcinoma in the literature. The present video-assisted procedure shows a laparoscopic resection of hilar cholangiocarcinoma. Patient and Methods: A 43-year-old woman with progressive jaundice due to left-sided hilar cholangiocarcinoma was referred for treatment. The decision was to perform a laparoscopic left hepatectomy with lymphadenectomy and resection of extrahepatic bile ducts. Biliary reconstruction was performed using the hybrid method. Results: Operative time was 300 minutes with minimum blood loss and no need for blood transfusion. Recovery was uneventful, and the patient was discharged on postoperative Day 7. Pathology revealed a well-differentiated cholangiocarcinoma with negative lymph nodes and clear surgical margins. The patient is well with no signs of the disease 18 months after the procedure. Conclusions: Laparoscopic left hepatectomy with lymphadenectomy is safe and feasible in selected patients and when performed by surgeons with expertise in liver surgery and minimally invasive techniques. The use of a hybrid method may be needed for biliary reconstruction, especially in cases where position and size of remnant bile ducts may jeopardize the anastomosis. Further studies are still needed to confirm the benefit of this approach over conventional surgery for hilar cholangiocarcinoma
Solução salina hipertônica aumenta a pressão de perfusão cerebral no transplante do fígado para hepatite fulminante: resultados preliminares
During orthotopic liver transplantation for fulminant hepatic failure, some patients may develop sudden deterioration of cerebral perfusion and oxygenation, mainly due to increased intracranial pressure and hypotension, which are likely responsible for postoperative neurological morbidity and mortality. In the present study, we hypothesized that the favorable effects of hypertonic saline solution (NaCl 7.5%, 4 mL/kg) infusion on both systemic and cerebral hemodynamics, demonstrated in laboratory and clinical settings of intracranial hypertension and hemorrhagic shock resuscitation, may attenuate the decrease in cerebral perfusion pressure that often occurs during orthotopic liver transplantation for fulminant hepatic failure. METHODS: 10 patients with fulminant hepatic failure in grade IV encephalopathy undergoing orthotopic liver transplantation with intracranial pressure monitoring were included in this study. The effect on cerebral and systemic hemodynamics in 3 patients who received hypertonic saline solution during anhepatic phase (HSS group) was examined, comparing their data with historical controls obtained from surgical procedure recordings in 7 patients (Control group). The maximal intracranial pressure and the corresponding mean arterial pressure values were collected in 4 time periods: (T1) the last 10 min of the dissection phase, (T2) the first 10 minutes at the beginning of anhepatic phase, (T3) at the end of the anhepatic phase, and (T4) the first 5 minutes after graft reperfusion. RESULTS: Immediately after hypertonic saline solution infusion, intracranial pressure decreased 50.4%. During the first 5 min of reperfusion, the intracranial pressure remained stable in the HSS group, and all these patients presented an intracranial pressure lower than 20 mm Hg, while in the Control group, the intracranial pressure increased 46.5% (P < 0.001). The HSS group was the most hemodynamically stable; the mean arterial pressure during the first 5 min of reperfusion increased 21.1% in the HSS group and decreased 11.1% in the Control group (P < 0.001). During the first 5 min of reperfusion, cerebral perfusion pressure increased 28.3% in the HSS group while in the Control group the cerebral perfusion pressure decreased 28.5% (P < 0.001). Serum sodium at the end of the anhepatic phase and 3 hours after reperfusion was significantly higher in the HSS group (153.00 ± 2.66 and 149.00 ± 1.73 mEq/L) than in the Control group (143.71 ± 3.30 and 142.43 ± 1.72 mEq/L), P = 0.003 and P < 0.001 respectively. CONCLUSION: Hypertonic saline solution can be successfully used as an adjunct in the neuroprotective strategy during orthotopic liver transplantation for fulminant hepatic failure, reducing intracranial pressure while restoring arterial blood pressure, promoting sustained increase in the cerebral perfusion pressure.Neste estudo testamos a hipótese de que os efeitos benéficos decorrentes da administração da solução salina hipertônica (NaCl 7,5%, 4 mL/kg) sobre a hemodinâmica sistêmica e cerebral na hipertensão intracraniana e no choque hemorrágico, possam atenuar a diminuição da pressão de perfusão cerebral que freqüentemente acompanha o transplante do fígado para hepatite fulminante. MÉTODO: Foram estudados 10 pacientes com hepatite fulminante em encefalopatia grau IV e monitorização de pressão intracraniana submetidos ao transplante do fígado. A hemodinâmica sistêmica e cerebral de 3 pacientes que receberam solução salina hipertônica durante a fase anepática (Grupo SSH) foi analisada comparando com os dados obtidos de 7 pacientes transplantados anteriormente nas mesmas condições (Grupo Controle). Os valores de pressão intracraniana máxima e a correspondente pressão arterial média foram coletados em quatro tempos: (T1) nos últimos 10 min da fase de disseccão, (T2) nos primeiros 10 minutos da fase anepática, (T3) no final da fase anepática e (T4) nos primeiros 5 min da reperfusão RESULTADO: Imediatamente após a infusão da solução salina hipertônica a pressão intracraniana diminuiu 50,4%. Nos primeiros 5 min da reperfusão a pressão intracraniana no Grupo SSH se manteve estável e todos os pacientes apresentavam pressão intracraniana menor que 20 mmHg enquanto no Grupo Controle a pressão intracraniana aumentou 46,5% (
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