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1.
Article in Spanish | LILACS, BNUY, UY-BNMED | ID: biblio-1248722

ABSTRACT

La mitad de los pacientes con cáncer de origen colorrectal desarrollan metástasis hepáticas durante el curso de su enfermedad y de esas el 80% son irresecables. La resecabilidad se define no por la extensión de la hepatectomía, sino por la función del hígado remanente, por lo que para pacientes con ciertos factores favorables se pueden realizar técnicas de remodelación hepática para aumentar el volumen del hígado remanente para que este sea suficiente. La hepatectomía en dos tiempos se basa en procedimientos secuenciales que buscan tratar metástasis hepáticas colorrectales consideradas inicialmente irresecables, logrando la resección completa de las mismas dejando un remanente hepático funcionante suficiente, lo cual no sería posible en un solo acto quirúrgico. El objetivo de este trabajo es presentar el caso clínico de un paciente portador de metástasis hepáticas sincrónicas de origen colorrectal irresecables, que luego de una quimioterapia de conversión, con el fin de aumentar el futuro remanente hepático y evitar falla hepática postoperatoria y realizar una resección oncológica, fue sometido a una hepatectomía en dos tiempos, técnica utilizada con baja frecuencia en nuestro medio, destacando una evolución favorable, con marcadores tumorales en valores normales y sin evidencia imagenológica de recaída local ni sistémica.


Half of colorectal cancer patients develop liver metastases during the course of their disease, 80% of which are unresectable. Resectability is defined not by the extent of the hepatectomy, but by the function of the liver remnant. Therefore, for patients with certain factors, liver remodeling techniques can be performed to increase volume of the remaining liver so that it is sufficient. Two-stage hepatectomy is performed on colorectal liver metastases which are initially considered unresectable in one stage resection procedures, in which sequential procedures are performed in order to achieve complete resection and preserve a sufficient functioning liver remnant. The objective of this paper is to present the case of a patient with unresectable synchronous colorectal liver metastases, in which after conversion chemotherapy, in order to increase the future liver remnant, avoid postoperative liver failure and perform an oncological resection underwent a two-stage hepatectomy, a technique used with low frequency in our setting, highlighting a favorable evolution, with tumor markers in normal values and without imaging evidence of local or systemic relapse.


Metade dos pacientes com câncer colorretal desenvolve metástases hepáticas durante o curso da doença e, desses, 80% são irressecáveis. A ressecabilidade é definida não pela extensão da hepatectomia, mas pela função do fígado remanescente; portanto, para pacientes com certos fatores favoráveis, técnicas de remodelação hepática podem ser realizadas para aumentar o volume do fígado remanescente de forma que seja suficiente. A hepatectomia em dois estágios é baseada em procedimentos sequenciais que buscam tratar metástases hepáticas colorretais inicialmente consideradas irressecáveis, obtendo ressecção completa, deixando um remanescente hepático funcional suficiente, o que não seria possível em um único ato cirúrgico. O objetivo deste trabalho é apresentar o caso clínico de um paciente com metástases hepáticas sincrônicas irressecáveis ​​de origem colorretal, que após quimioterapia de conversão, com o objetivo de aumentar o futuro remanescente hepático e evitar insuficiência hepática pós-operatória e realizar uma ressecção oncológica, foi submetido a dois Hepatectomia em estágio, técnica utilizada com baixa frequência em nosso meio, evidenciando evolução favorável, com marcadores tumorais em valores normais e sem evidências de imagem de recidiva local ou sistêmica.


Subject(s)
Humans , Male , Aged , Chemotherapy, Adjuvant , Induction Chemotherapy , Hepatectomy/methods , Liver Neoplasms/surgery , Liver Neoplasms/drug therapy , Follow-Up Studies , Treatment Outcome , Capecitabine/therapeutic use , Bevacizumab/therapeutic use , Oxaliplatin/therapeutic use
2.
Rev. cuba. cir ; 60(1): e1034, ene.-mar. 2021. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1289372

ABSTRACT

Introducción: La historia de la cirugía del hígado abarca 28 siglos, lo que ha permitido su evolución desde considerar al hígado como un órgano intocable hasta realizar hepatectomías complejas y trasplante hepático. Esta investigación representa el balance de 10 años en la actividad de un grupo de cirugía hepatobiliar. Objetivo: Caracterizar el tratamiento quirúrgico de los tumores hepáticos sólidos en el Centro de Investigaciones Médico-Quirúrgicas entre los años 2009 y 2019. Métodos: Se realizó un estudio de tipo observacional, descriptivo, longitudinal y retrospectivo en el que se analizaron 129 pacientes que fueron tributarios de tratamiento quirúrgico. Resultados: Los tumores malignos representaron el 73 por ciento del total, dentro de este grupo se destacan los metastásicos con 50 casos. La morbilidad de esta cirugía fue del 13 por ciento y la mortalidad operatoria del 2 por ciento. La causa de muerte identificada fue el shock séptico por peritonitis generalizada. Conclusiones: Los tumores malignos fueron los más frecuentes. Se presentó una baja morbilidad encontrándose el derrame pleural como la complicación más usual. Existe una mortalidad acorde a los valores reportados para este tipo de cirugía(AU)


Introduction: The history of liver surgery covers twenty-eight centuries, which has allowed its evolution from considering the liver as an untouchable organ to performing complex hepatectomies and hepatic transplantation. This research describes the ten years' balance in the activity developed by a hepatobiliary surgery team. Objective: To characterize the surgical management of solid hepatic tumors in the Center for Medical-Surgical Research between 2009 and 2019. Methods: An observational, descriptive, longitudinal and retrospective study was carried out, for which 129 patients who underwent surgical treatment were analyzed. Results: Malignant tumors accounted for 73 percent of the total; within this group, metastatic tumors stand out, accounting for fifty cases. Morbidity of this surgery type was 13 percent, while operative mortality was 2 percent. The cause of death identified was septic shock due to generalized peritonitis. Conclusions: Malignant tumors were the most frequent. There was low morbidity, with pleural effusion as the most common complication. Mortality is consistent with the values reported for this type of surgery(AU)


Subject(s)
Humans , Peritonitis/mortality , Shock, Septic/mortality , Liver Transplantation/methods , Hepatectomy/methods , Liver Neoplasms/epidemiology , Epidemiology, Descriptive , Retrospective Studies , Observational Studies as Topic
3.
ABCD arq. bras. cir. dig ; 33(1): e1494, 2020. tab, graf
Article in English | LILACS | ID: biblio-1130514

ABSTRACT

ABSTRACT Background: There have been an increasing number of articles that demonstrate the potential benefits of minimally invasive liver surgery in recent years. Most of the available evidence, however, comes from retrospective observational studies susceptible to bias, especially selection bias. In addition, in many series, several modalities of minimally invasive surgery are included in the same comparison group. Aim: To compare the perioperative results (up to 90 days) of patients submitted to total laparoscopic liver resection with those submitted to open liver resection, matched by propensity score matching (PSM). Method: Consecutive adult patients submitted to liver resection were included. PSM model was constructed using the following variables: age, gender, diagnosis (benign vs. malignant), type of hepatectomy (minor vs. major), and presence of cirrhosis. After matching, the groups were redefined on a 1:1 ratio, by the nearest method. Results: After matching, 120 patients were included in each group. Those undergoing total laparoscopic surgery had shorter operative time (286.8±133.4 vs. 352.4±141.5 minutes, p<0.001), shorter ICU stay (1.9±1.2 vs. 2.5±2.2days, p=0.031), shorter hospital stay (5.8±3.9 vs. 9.9±9.3 days, p<0.001) and a 45% reduction in perioperative complications (19.2 vs. 35%, p=0.008). Conclusion: Total laparoscopic liver resections are safe, feasible and associated with shorter operative time, shorter ICU and hospital stay, and lower rate of perioperative complications.


RESUMO Racional: Com a disseminação da cirurgia hepática minimamente invasiva tem-se observado nos últimos anos número crescente de trabalhos que demonstram seus potencias benefícios. No entanto, a maior parte da evidência disponível provém de estudos observacionais retrospectivos sujeitos a vieses, em especial, os de seleção. Além disso, em muitas casuísticas são incluídas no mesmo grupo diversas modalidades de operações minimamente invasivas. Objetivo: Comparar os resultados perioperatórios (até 90 dias) de pacientes submetidos a ressecções hepáticas totalmente laparoscópicas com pacientes contemporâneos por cirurgias abertas, pareados por pontuação de propensão (propensity score matching PSM), submetidos a ressecções hepáticas convencionais. Método: Foram estudados pacientes adultos consecutivos submetidos à ressecção hepática. Para homogeneização dos grupos foi utilizado pareamento por pontuação de propensão, utilizando a variável idade, gênero, tipo de doença (benigna vs. maligna), tipo de hepatectomia (maior vs. menor) e presença de cirrose. A partir disto, os grupos foram redefinidos com proporção 1:1, pelo método nearest. Resultado: Após o pareamento foram incluídos 120 pacientes em cada grupo. Os submetidos à operação totalmente laparoscópica apresentaram menor tempo cirúrgico (286,8±133,4 vs. 352,4±141,5 min, p<0,001), menor tempo de internação em unidade de terapia intensiva (1,9±1,2 vs. 2,5±2,2dias, p=0,031), menor tempo de internação hospitalar (5,8±3,9 vs. 9,9±9,3dias, p<0,001) e redução de 45% nas complicações perioperatórias (19,2 vs. 35%, p=0,008). Conclusão: As ressecções hepáticas totalmente laparoscópicas são exequíveis, seguras e associadas à menor tempo operatório, menor tempo de internação em unidade de terapia intensiva e internação hospitalar, além de diminuição nas complicações perioperatórias.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Laparoscopy/methods , Hepatectomy/methods , Liver Neoplasms/surgery , Cholangiocarcinoma/surgery , Propensity Score , Perioperative Period , Intensive Care Units , Length of Stay
4.
ABCD arq. bras. cir. dig ; 33(1): e1484, 2020. tab, graf
Article in English | LILACS | ID: biblio-1088501

ABSTRACT

ABSTRACT Background: Hepatectomies promote considerable amount of blood loss and the need to administrate blood products, which are directly linked to higher morbimortality rates. The blood-conserving hepatectomy (BCH) is a modification of the selective vascular occlusion technique. It could be a surgical maneuver in order to avoid or to reduce the blood products utilization in the perioperative period. Aim: To evaluate in rats the BCH effects on the hematocrit (HT) variation, hemoglobin serum concentration (HB), and on liver regeneration. Methods: Twelve Wistar rats were divided into two groups: control (n=6) and intervention (n=6). The ones in the control group had their livers partially removed according to the Higgins and Anderson technique, while the rats in the treatment group were submitted to BCH technique. HT and HB levels were measured at day D0, D1 and D7. The rate between the liver and rat weights was calculated in D0 and D7. Liver regeneration was quantitatively and qualitatively evaluated. Results: The HT and HB levels were lower in the control group as of D1 onwards, reaching an 18% gap at D7 (p=0.01 and p=0.008, respectively); BCH resulted in the preservation of HT and HB levels to the intervention group rats. BCH did not alter liver regeneration in rats. Conclusion: The BCH led to beneficial effects over the postoperative HT and serum HB levels with no setbacks to liver regeneration. These data are the necessary proof of evidence for translational research into the surgical practice.


RESUMO Racional: As hepatectomias compreendem considerável perda sanguínea e utilização de hemoderivados, o que diretamente estão relacionados com maior morbimortalidade. A hepatectomia hemoconservadora (HH) é modificação da técnica de oclusão vascular seletiva em hepatectomia. Ela pode ser alternativa cirúrgica para evitar ou diminuir o uso de hemoderivados no perioperatório. Objetivo: Avaliar os efeitos da HH sobre o volume globular (VG), concentração de hemoglobina (HB) e sobre a regeneração hepática em ratos. Métodos: Dois grupos de ratos Wistar foram constituídos: controle (n=6) e intervenção (n=6). Os do grupo controle foram submetidos à hepatectomia parcial de Higgins e Anderson e os do grupo Intervenção à HH. VG e HB foram medidos nos dias D0, D1 e D7. A relação peso do fígado/peso do rato foi calculada em D0 e D7. A regeneração hepática foi analisada qualitativamente e quantitativamente. Resultados: Houve diminuição dos níveis de VG e HB nos ratos do grupo controle a partir de D1, atingindo decréscimo de 18% em D7 (p=0,01 e p=0,008 respectivamente); a HH permitiu a manutenção dos níveis de VG e HB nos ratos do grupo intervenção. A HH não alterou a regeneração hepática. Conclusão: HH resultou em níveis maiores de VG e HB pós-operatórios sem alterar a regeneração hepática. Pode-se considerar estes dados como a prova necessária para a translação à pesquisa clinicocirúrgica.


Subject(s)
Animals , Male , Rats , Veins/physiology , Hepatectomy/methods , Liver/surgery , Liver/blood supply , Liver Regeneration , Portal Vein/surgery , Postoperative Period , Blood Volume/physiology , Hepatic Veno-Occlusive Disease/physiopathology , Hemoglobins/analysis , Rats, Wistar , Hematocrit
5.
ABCD arq. bras. cir. dig ; 33(4): e1555, 2020. graf
Article in English | LILACS | ID: biblio-1152633

ABSTRACT

ABSTRACT Background: Laparoscopic liver resection is performed worldwide. Hemorrhage is a major complication and bleeding control during hepatotomy is an important concern. Pringle maneuver remains the standard inflow occlusion technique. Aim: Describe an extracorporeal, efficient, fast, cheap and reproducible way to execute the Pringle maneuver in laparoscopic surgery, using a chest tube. Methods: From January 2014 to March 2020, our team performed 398 hepatectomies, 63 by laparoscopy. We systematically encircle the hepatoduodenal ligament and prepare a tourniquet to perform Pringle maneuver. In laparoscopy, we use a 24 Fr chest tube, which is inserted in the abdominal cavity through a small incision. We thread the cotton tape through the tube, pulling it out through the external end, outside the abdomen. To perform the tourniquet, we just need to push the tube as we hold the tape, clamping both with one forceps. Results: The 24 Fr chest tube is firm and works perfectly to occlude blood inflow as the cotton band is tightened. It has an internal diameter of 5,5 mm, sufficient for a laparoscopic grasper pass through it to catch the cotton band, and an external diameter of 8 mm, which allows to be inserted in the abdomen through a tiny incision. The cost of this tube and the cotton band is less than US$ 1. No complications related to the method were identified in our patients. Conclusions: The extracorporeal Pringle maneuver presented here is a safe, cheap and reproducible method, that can be used for bleeding control in laparoscopic liver surgery.


RESUMO Racional: Ressecções hepáticas laparoscópicas são realizadas em todo mundo. A hemorragia é complicação grave e o controle do sangramento durante a hepatotomia é preocupação importante. A manobra de Pringle continua sendo a técnica padrão de oclusão do influxo sanguíneo. Objetivo: Descrever uma maneira eficiente, rápida, barata e reproduzível de executar a manobra de Pringle extracorpórea, em operação laparoscópica, utilizando um dreno de tórax. Métodos: De janeiro/2014 a março/2020, realizamos 398 hepatectomias, 63 por laparoscopia. Nós sistematicamente laçamos o ligamento hepatoduodenal e preparamos um torniquete para a manobra de Pringle. Na laparoscopia, usamos um dreno de tórax 24 Fr, inserido na cavidade abdominal através de uma pequena incisão. Passamos a fita de algodão através do tubo, puxando-a pela extremidade externa, fora do abdome. Para apertar o torniquete, basta pressionar o tubo enquanto seguramos a fita, prendendo ambos com uma pinça. Resultados: O dreno de tórax 24 Fr é firme e funciona perfeitamente para ocluir influxo de sangue, à medida que apertamos o torniquete. Tem diâmetro interno de 5,5 mm, suficiente para passar uma pinça laparoscópica e puxar a fita de algodão, e um diâmetro externo de 8 mm, permitindo a inserção no abdome através de uma pequena incisão. O custo do tubo e fita é inferior a US$ 1, valor insignificante. Não foram identificadas complicações relacionadas ao método em nossos pacientes. Conclusões: A manobra extracorpórea de Pringle apresentada aqui é método seguro, barato e reproduzível, que pode ser utilizado para o controle do sangramento em hepatectomias laparoscópicas.


Subject(s)
Humans , Laparoscopy/methods , Abdominal Cavity/diagnostic imaging , Hepatectomy/methods , Liver Neoplasms/surgery , Constriction
6.
Chinese Journal of Surgery ; (12): 835-840, 2020.
Article in Chinese | WPRIM | ID: wpr-878273

ABSTRACT

Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) can speed up the regeneration of future liver remnant (FLR) in short period of time, and offer a chance for surgical resection for patients without sufficient FLR. However, ALPPS still remains controversy due to its high perioperative morbidity and mortality, as well as the uncertain long-term oncological benefits. How to solve these problems is the key to ensure the safety of surgery.This article focus on the indication selection, liver function reserve evaluation and timing to perform the second stage surgery, surgical mode evolution and comparison with portal venous embolization/portal venous ligation+two-stage hepatectomy.


Subject(s)
Embolization, Therapeutic , Hepatectomy/methods , Humans , Ligation , Liver/surgery , Liver Neoplasms/surgery , Liver Regeneration , Portal Vein/surgery , Treatment Outcome
8.
Rev. argent. cir ; 111(2): 99-103, jun. 2019. tab
Article in English, Spanish | LILACS | ID: biblio-1013352

ABSTRACT

Debido a la falta de órganos para trasplantes se han desarrollado diferentes alternativas quirúrgicas, como la bipartición hepática (BH) y los trasplantes hepáticos con donantes vivos. En la BH clásica, de la división de un hígado de donante cadavérico se obtienen dos injertos, uno correspondiente a los segmentos 2-3 y otro a los segmentos 1, 4-8. Para poder utilizar los injertos de una BH, en pacientes adultos, se puede realizar una BH derecha/izquierda típica, donde se obtienen un injerto derecho (segmentos 5-8) y otro izquierdo (segmentos 1-4). La BH se puede realizar en el momento de la ablación (BH in situ) o en la cirugía de banco (BH ex situ). En este trabajo informamos el primer caso de BH in situ derecha/izquierda típica de la Argentina, resaltando los detalles de la cirugía del donante y del receptor.


Due to the shortage of organs for transplantation, different surgical alternatives have been developed, as split liver transplantation (SLT) and living-donor liver transplantation. In classical SLT, the liver of a cadaveric donor is divided and two allografts are obtained, one corresponding to segments 2-3 and the other to segments 1, 4-8. In order to produce two grafts from one liver for two adult recipients, splitting of the liver can create a right graft including segments 5-8 and a left graft with segments 1-4. Splitting of the liver can be performed during procurement (in situ) or on the bench (ex situ). The aim of our study is to describe the first case of in situ full-right full-left split liver transplantation, with focus on donor and recipient surgery.


Subject(s)
Humans , Male , Female , Child , Middle Aged , Liver Transplantation/instrumentation , Hepatectomy/methods , Cholangiography/methods , Neuroendocrine Tumors , Cystic Fibrosis/complications , Liver Neoplasms/surgery , Neoplasm Metastasis
9.
Rev. med. Rosario ; 85(1): 34-34, ene.-abr. 2019.
Article in English | LILACS | ID: biblio-1053022

ABSTRACT

BACKGROUND: When a major hepatic resection is necessary, sometimes the future liver remnant is not enough to maintain sufficient liver function and patients are more likely to develop liver failure after surgery. AIM: To test the hypothesis that performing a percutaneous radiofrecuency liver partition plus percutaneous portal vein embolization (PRALPPS) for stage hepatectomy in pigs is feasible. METHODS: Four pigs (Sus scrofa domesticus) both sexes with weights between 25 to 35 kg underwent percutaneous portal vein embolization with coils of the left portal vein. By contrasted CT, the difference between the liver parenchyma corresponding to the embolized zone and the normal one was identified. Immediately, using the fusion of images between ultrasound and CT as a guide, radiofrequency needles were placed percutaneouslyand then ablated until the liver partition was complete. Finally, hepatectomy was completed with a laparoscopic approach. RESULTS: All animals have survived the procedures, with no reported complications. The successful portal embolization process was confirmed both by portography and CT. In the macroscopic analysis of the pieces, the depth of the ablation was analyzed. The hepatic hilum was respected. On the other hand, the correct position of the embolization material on the left portal vein could be also observed. CONCLUSION: "Percutaneous radiofrequency assisted liver partition with portal vein embolization" (PRALLPS) is a feasible procedure (AU)


Subject(s)
Animals , Male , Female , Portal Vein , Catheter Ablation , Embolization, Therapeutic , Hepatectomy/methods , Swine
10.
Medicina (B.Aires) ; 79(1): 64-66, feb. 2019. ilus
Article in Spanish | LILACS | ID: biblio-1002589

ABSTRACT

El adenoma pleomorfo es el tumor benigno más frecuente de las glándulas salivales. Puede sufrir transformación maligna y metastatizar a otros órganos distantes y, en otros casos, hacerlo como un tumor benigno. Se presenta el caso de un hombre de 82 años con lesión hepática detectada por ecografía en estudio urológico de rutina. La tomografía computarizada reveló una imagen sólida en los segmentos V-VI-VII del hígado. Se efectuó biopsia de la lesión de cuyo examen se informó metástasis de adenoma pleomorfo salival. Se realizó hepatectomía derecha y la anatomía patológica describió un tumor de 10 cm de diámetro, con margen libre, compatible con adenoma pleomorfo salival, 32 años después de la cirugía de su tumor primario. Luego de 8 años, en el seguimiento se hallaron cuatro nódulos hepáticos y una nueva imagen ósea en la vértebra L4 sugerente de recurrencia de la enfermedad. Se decidió administrar radioterapia corporal estereotáctica a la lesión ósea y evaluar la respuesta para decidir el futuro tratamiento de los nódulos hepáticos, debido a su lento crecimiento.


Pleomorphic adenoma is the most benign tumor of the salivary glands. It can undergo a malignant transformation to carcinoma and metastasize to distant organs, sometimes it can metastasize as a benign tumor. We present the case of an 82 years old male with hepatic lesion detected by ultrasound in routine urologic follow-up. CT scan revealed a solid image placed in segments V-VI-VII of the liver. A CT guided fine needle biopsy was made. Pathologic analysis reported a pleomorphic salivary adenoma metastasizing in the liver. Right hepatectomy was performed. Pathology study described a 10 cm diameter tumor with free margin, compatible with pleomorphic salivary adenoma, 32 years after surgery for the primary tumor. After 8 years of follow up, four hepatic nodules and a bone image in L4 vertebra that seemed to be a disease recurrence were found. It was decided to administer stereotactic body radiotherapy to the bone lesion and evaluate the response to decide the future treatment of the hepatic nodules, due to its slow growth.


Subject(s)
Humans , Male , Aged, 80 and over , Salivary Gland Neoplasms/pathology , Adenoma, Pleomorphic/pathology , Liver Neoplasms/secondary , Adenoma, Pleomorphic/surgery , Biopsy, Fine-Needle , Hepatectomy/methods , Liver Neoplasms/surgery
11.
ABCD arq. bras. cir. dig ; 32(4): e1463, 2019. tab, graf
Article in English | LILACS | ID: biblio-1054595

ABSTRACT

ABSTRACT Background: Primary intrahepatic lithiasis is defined when the stones are formed in the liver and associated with local dilatation and biliary stricture. Liver resection is the ideal procedure. Aim: To evaluate the results of liver resection in the treatment of non-oriental intrahepatic lithiasis. Methods: Fifty-one patients with symptomatic benign non-oriental hepatolithiasis underwent surgical resection in six institutions in Brazil. Demography data, clinical symptoms, classification, diagnosis, management and postoperative course were analyzed. Results: Of the 51 patients, 28 were male (54.9%), with a mean age of 49.3 years. History of cholangitis was observed in 15 (29.4%). The types of intrahepatic lithiasis were type I in 39 (76.5%) and type IIb in 12 (23.5%), with additional type Ea in six (11.8%). Liver function test were normal in 42 patients (82.4%). Segmental atrophy was observed in 12 (23.5%). Treatments included left lateral sectionectomy in 24 (47.1%), left hepatectomy in 14 (27.5%) and right hepatectomy in eight (15.7%), with associated hepaticojejunostomy in four (7.8%). Laparoscopic liver resection was performed in eight (15.7%). Postoperative complications were observed in 20 (39.2%) with no mortality. Conclusion: Liver resection in patients with hepatolithiasis is the ideal procedure as it removes stones, stricture, atrophic parenchyma, and minimizes the risk of cholangiocarcinoma.


RESUMO Racional: Litíase intra-hepática primária é definida quando os cálculos são formados dentro do fígado, podendo estar associada à dilatação local e estenosa da via biliar. A ressecção hepática é considerada o procedimento ideal. Objetivo: Avaliar os resultados da ressecção hepática no tratamento da litíase intra-hepática não oriental. Métodos: Cinquenta e um pacientes com hepatolitíase benigna não oriental sintomática foram submetidos à ressecção hepática em seis instituições no Brazil. Os dados demográficos, sintomas clínicos, classificação, diagnóstico, tratamento e evolução pós-operatória foram analisados. Resultados: Dos 51 pacientes havia 28 homens (54,9%), e a idade média era de 49,3 anos. História de colangite foi observada em 15 pacientes (29,4%). Os tipos de litíase observados foram tipo I em 39 (76,5%) e tipo IIb em 12 (23,5%), com o tipo adicional Ea em seis pacientes (11,8%). Os testes de função hepática estavam normais em 42 (82,4%) e atrofia segmentar foi observada em 12 (23,5%). O tratamento incluiu setorectomia lateral esquerda em 24 (47,1%), hepatectomia esquerda em 14 (27,5%) e hepatectomia direita em oito pacientes (15,7%). A hepaticojejunostomia esteve associada ao procedimento inicial em quatro (7,8%). Hepatectomia por videolaparoscopia foi realizada em oito (15,7%). Complicações pós-operatórias foram observadas em 20 pacientes (39,2%) e não houve mortalidade. Conclusão: Ressecção hepática na hepatolitíase é o procedimento ideal, pois remove os cálculos, a estenose, o parênquima atrofiado e minimiza os riscos para colangiocarcinoma.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Lithiasis/surgery , Hepatectomy/methods , Liver Diseases/surgery , Treatment Outcome
12.
ABCD arq. bras. cir. dig ; 32(1): e1424, 2019. tab
Article in English | LILACS | ID: biblio-983678

ABSTRACT

ABSTRACT Background: After the publication of the first recommendations of ERAS Society regarding colonic surgery, the proposal of surgical stress reduction, maintenance of physiological functions and optimized recovery was expanded to other surgical specialties, with minimal variations. Aim: To analyze the implementation of ERAS protocols for liver surgery in a tertiary center. Methods: Fifty patients that underwent elective hepatic surgery were retrospectively evaluated, using medical records data, from June 2014 to August 2016. After September 2016, 35 patients were prospectively evaluated and managed in accordance with ERAS protocol. Results: There was no difference in age, type of hepatectomy, laparoscopic surgery and postoperative complications between the groups. In ERAS group, it was observed a reduction in preoperative fasting and in the length of hospital stay by two days (p< 0.001). Carbohydrate loading, j-shaped incision, early oral feeding, postoperative prevention of nausea and vomiting and early mobilization were also significantly related to ERAS group. Oral bowel preparation, pre-anesthetic medication, sub-costal incision, prophylactic nasogastric intubation and abdominal drainage were more common in control group. Conclusion: Implementation of ERAS protocol is feasible and beneficial for health institutions and patients, without increasing morbidity and mortality.


RESUMO Racional: Após a publicação das primeiras recomendações da Sociedade ERAS sobre a cirurgia do cólon, a proposta de redução do estresse cirúrgico, manutenção das funções fisiológicas e recuperação otimizada foi ampliada para outras especialidades cirúrgicas, com pequenas variações. Objetivo: Analisar a implementação dos protocolos ERAS para cirurgia hepática em um centro terciário. Métodos: Cinquenta pacientes submetidos à cirurgia hepática eletiva foram avaliados retrospectivamente, utilizando dados de prontuários, de junho de 2014 a agosto de 2016. Após setembro de 2016, 35 pacientes foram prospectivamente avaliados e manejados de acordo com o protocolo ERAS. Resultados: Não houve diferença de idade, tipos de hepatectomia, cirurgia laparoscópica e complicações pós-operatórias entre os grupos. No grupo ERAS, observou-se redução no jejum pré-operatório e no tempo de internação hospitalar de dois dias (p<0,001). A carga de carboidratos, a incisão em forma de J, a alimentação oral precoce, a prevenção pós-operatória de náuseas e vômitos e a mobilização precoce também foram significativamente relacionadas ao grupo ERAS. Preparo mecânico do cólon, medicação pré-anestésica, incisão subcostal, intubação nasogástrica profilática e drenagem abdominal foram mais comuns no grupo controle. Conclusão: A implementação do protocolo ERAS é viável e benéfica para instituições de saúde e pacientes, sem aumentar a morbidade e a mortalidade.


Subject(s)
Humans , Male , Female , Adult , Aged , Aged, 80 and over , Young Adult , Clinical Protocols , Recovery of Function , Hepatectomy/methods , Retrospective Studies
13.
Acta cir. bras ; 34(6): e201900607, 2019. tab, graf
Article in English | LILACS | ID: biblio-1019264

ABSTRACT

Abstract Purpose Coleus forskohlii Briq., a medicinal plant originally from India, has been indicated against heart disease, expiratory disorders, convulsions, and hepatic changes, among others. In view of the broad pharmacological potential of the plant and the scarce information about its effects, the objective of the present study was to investigate the effect of its use for pretreatment of partially hepatectomized rats. Methods The animals were divided into two experimental groups: Control (CG) receiving physiological saline for 10 days before partial hepatetctomy, and Treated (TG) receiving 40 mg Coleus forskohlii/kg/day for 10 days before partial hepatectomy. The treatments were performed by gastric gavage. After the surgical procedure, treatment was continued according to the following groups: CG 24 h, CG 48 h, TG 24 h, and TG 48 hs, and liver tissue and intracardiac blood samples were obtained for histological and biochemical analysis, respectively. Results No significant differences were observed in mitotic or apoptotic index or in the concentrations of the enzymes AST, ALT and alkaline phosphatase, and no areas of fibrosis were detected. Conclusion Treatment with Coleus forskohlii did not interfere with the course of hepatic hyperplasia.


Subject(s)
Animals , Male , Rats , Plant Extracts/administration & dosage , Plectranthus/chemistry , Hepatectomy/methods , Liver/pathology , Aspartate Aminotransferases/blood , Biomarkers/blood , Hepatocytes/drug effects , Alanine Transaminase/blood , Alkaline Phosphatase/blood , Hyperplasia/drug therapy , Liver/surgery , Liver/drug effects
14.
Acta cir. bras ; 34(6): e201900606, 2019. graf
Article in English | LILACS | ID: biblio-1019270

ABSTRACT

Abstract Purpose To investigate the effects of pine needle extract (PNE) on the expression of proliferating cell nuclear antigen (PCNA) and Ki-67 during liver regeneration induced by 70% partial hepatectomy (PH) in rat. Methods Forty-eight male rats (SD, 7 weeks) had surgery (70% PH). They were randomly divided into two groups. PH + PNE group was only provided PNE diluted in water (10%) for drinking and PH group was provided water from 5 days before surgery to the time of sacrifice. PNE was made by pressing and filtering. Animals were sacrificed at 12h, 24h, 36h, 60h, 84h, 168h after PH, respectively. The expressions of PCNA and Ki-67 were determined as proliferation indices. Results Immunohistochemistry turned out to increase the expression of PCNA and Ki-67. PCNA expression of PH+PNE group increased up to twice of that of PH group. Western blot also seemed to increase the PCNA expression. These results indicated the promotion of cell proliferation in liver tissue and hepatic regeneration. Conclusions Pine needle extract stimulates the expression of some mitotic proteins during liver regeneration induced by 70% PH in rats. It suggests that administration of pine needle extract could accelerate the liver regeneration after partial hepatectomy.


Subject(s)
Animals , Male , Rats , Plant Extracts/pharmacology , Proliferating Cell Nuclear Antigen/drug effects , Ki-67 Antigen/adverse effects , Pinus/chemistry , Hepatectomy/methods , Liver Regeneration/drug effects , Time Factors , Rats, Sprague-Dawley , Proliferating Cell Nuclear Antigen/metabolism , Ki-67 Antigen/metabolism , Cell Proliferation , Mitotic Index
15.
Rev. chil. cir ; 70(6): 510-516, dic. 2018. tab, graf, ilus
Article in Spanish | LILACS | ID: biblio-978023

ABSTRACT

Introducción: Las resecciones hepáticas mayores pueden presentar una alta morbimortalidad en relación al sangrado intraoperatorio. La utilización de la maniobra de Pringle permite disminuir esta complicación a costa de un daño por isquemia-reperfusión. Una estrategia para minimizarla es el uso de corticoides perioperatorios. Objetivo: Evaluar el uso de metilprednisolona en dosis bajas (< 500 mg) en pacientes sometidos a resección hepática mayor con maniobra de Pringle en la incidencia de daño por isquemiareperfusión, morbilidad y mortalidad perioperatoria. Material y Métodos: Estudio retrospectivo utilizando la base de datos de hepatectomías entre los años 2000 y 2015. De un total de 171 resecciones hepáticas mayores, 62 utilizaron clampeo vascular. Se establecieron dos grupos: (A) aquellos que recibieron metilprednisolona inmediatamente previo al clampeo (n = 27) y (B) pacientes sin metilprednisolona (n = 35). Se evaluó el daño por isquemia-reperfusión por alteración de las pruebas hepáticas en los días 1, 3 y 5. Resultados: Los pacientes del grupo A tuvieron mayor tiempo de isquemia (43 + 3,3 vs 27 + 2,1 min, p < 0,05) que el grupo B, con una significativamente menor elevación de las fosfatasas alcalinas y bilirrubina en los días 1 y 5 poshepatectomía. No se observó diferencias en la magnitud del sangrado y no hubo diferencias en morbimortalidad. Conclusiones: La utilización de dosis bajas de metilprednisolona parece disminuir el impacto del DIR relacionado a la resección hepática bajo clampeo vascular, evitando los efectos adversos de la administración de esteroides en dosis altas.


Introduction: Liver resections may be associated with high morbidity and mortality due to intraoperative bleeding. Pringle maneuver reduces this complication at the expense of ischemia-reperfusion injury. Current strategies to minimize reperfusion injury include the use of perioperative corticosteroids. Objective: To assess the use of methylprednisolone in low doses (< 500 mg) in patients submitted to major hepatic resection under Pringle maneuver in the incidence of ischemia-reperfusion injury, peri-operative morbidity, and mortality. Material and Methods: Retrospective study from the liver resections database undertaken between the years 2000-2015 in our center. One hundred and seventy-one major liver resections were done, in 62 under Pringle maneuver. Two groups were established: (A) Patients administered methylprednisolone immediately before Pringle maneuver (n = 27) and (B) those without steroid (n = 35). We assessed ischemia-reperfusion injury by measuring liver tests on days 1, 3 and 5. Results: Patients in group A had longer ischemia time (43 ± 3.3 vs. 27 ± 2.1 min, p < 0.05) than those of group B, and significantly lower elevation of serum phosphatase alkaline and bilirubin on days 1 and five post-hepatectomy. We did not observe any difference in bleeding magnitude, and there were no differences in morbidity or mortality. Conclusions: The use of low doses of methylprednisolone seems to diminish the impact of ischemia-reperfusion injury related to major hepatic resection under Pringle maneuver avoiding the adverse side effects of high dose steroid.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Methylprednisolone/administration & dosage , Reperfusion Injury/prevention & control , Hepatectomy/methods , Retrospective Studies , Blood Loss, Surgical/prevention & control , Adrenal Cortex Hormones/administration & dosage , Hepatectomy/adverse effects
16.
Rev. chil. cir ; 70(6): 571-579, dic. 2018. tab, ilus
Article in Spanish | LILACS | ID: biblio-978032

ABSTRACT

Resumen Introducción: La insuficiencia hepática posoperatoria (IHP) es una causa importante de morbimortalidad posoperatoria en cirugía hepática. Un remanente hepático futuro (RHF) insuficiente es una de las principales causas IHP La asociación de bipartición hepática con ligadura portal para hepatectomía en 2 tiempos (ALPPS) es una técnica relativamente nueva que induce una rápida hipertrofia parenquimatosa reduciendo el tiempo de espera para lograr un volumen hepático adecuado. Nuestro objetivo es comunicar la experiencia y los resultados iniciales de la hepatectomía en 2 tiempos utilizando la técnica de ALLPS. Material y Método: Se incluyeron todos los pacientes en los que se ha realizado una hepatectomía en 2 tiempos utilizando la técnica de ALPPS entre el 1 de junio de 2014 y el 31 de julio de 2016 en la Unidad de Cirugía Digestiva del Hospital Regional de Talca. Resutados: Durante el periodo de estudio, se realizaron 47 hepatectomías en el Hospital Regional de Talca. En 3 casos (6.3%), se realizó una hepatectomía en 2 tiempos utilizando la técnica de ALPPS, en todos ellos se logró una hipertrofia del remanente hepático futuro (RHF) que permitió completar el segundo tiempo sin IHP clínicamente significativa. Conclusión: En nuestra experiencia inicial, la técnica de ALPPS logró aumentar el RHF permitiendo resecar pacientes que inicialmente tenían un RHF insuficiente para ser sometidos a una hepatectomía mayor.


Introduction: Postoperative liver failure (POLF) is a relevant cause of morbimortality after liver surgery. An insufficient future liver remnant (FLR) is one of the main causes of POLF. The association of hepatic bipartition with portal ligation for 2-stage hepatectomy (ALPPS) is a relatively new technique that induces rapid parenchymal hypertrophy reducing the waiting time to achieve adequate FLR. Our aim is to communicate the experience and the initial results of the hepatectomy in 2-stages using the ALLPS technique. Material and Method: All patients in whom a 2-stage hepatectomy using ALPPS technique between June 1, 2014 and July 31, 2016 in the Digestive Surgery Unit of the Hospital Regional of Talca were included. Results: There were 47 hepatectomies performed at the Hospital Regional of Talca. In 3 cases (6.3%), a 2-stage hepatectomy was performed using the ALPPS technique, in all of which a hypertrophy of the future hepatic remnant (RHF) was achieved, which allowed completing the second stage without POLF clinically significant. Conclusion: In our initial experience, the ALPPS technique successfully allowed increase FLR in patients who initially had insufficient FLR to be submitted a major liver resection.


Subject(s)
Humans , Male , Female , Middle Aged , Hepatic Insufficiency/etiology , Hepatectomy/adverse effects , Hepatectomy/methods , Liver Neoplasms/surgery , Treatment Outcome , Liver Neoplasms/complications
17.
Acta cir. bras ; 33(2): 110-116, Feb. 2018. tab, graf
Article in English | LILACS | ID: biblio-886264

ABSTRACT

Abstract Purpose: To investigate thymoquinone, curcumin and a combination of these two drugs were effective or not at the growth of liver. Methods: Forty female Wistar-Albino rats distributed into five groups of eight rats each, control, thymoquinone, curcumin, and thymoquinone/curcumin groups. Pathological specimens were studied using the Ki-67 Proliferation Index(PI); and arginase(Arg), tissue plasminogen activator(tPA), ceruloplasmin(Cer) and nitric oxide(NO) were studied in biochemical analysis. Results: Our results showed that Ki-67 proliferation index was low in Groups 1. The proliferation coefficient was significantly higher in the Group 2 and Group 4 than in the Group 1 and Group 3.(P < 0.001 between Groups 1 and 2, 1 and 4, and 3 and 4). There was no difference between Groups 2 and 4 (P = 1). The results of the biochemical Arg, tPA and Cer test showed statistically between the Group 1 and Group 2. NO showed significant differences Group 1 and 3. Conclusions: Thymoquinone and curcumin both have known positive effects on the organism. Histological and biochemical tests showed that thymoquinone is more effective than curcumin.


Subject(s)
Animals , Female , Rats , Liver Regeneration/drug effects , Antioxidants/pharmacology , Arginase/blood , Ceruloplasmin/analysis , Biomarkers/blood , Benzoquinones/pharmacology , Liver Transplantation , Tissue Plasminogen Activator/blood , Rats, Wistar , Ki-67 Antigen/analysis , Curcumin/pharmacology , Cell Proliferation , Hepatectomy/methods , Liver/pathology , Liver Neoplasms/surgery , Antineoplastic Agents/pharmacology , Nitric Oxide/blood
18.
ABCD arq. bras. cir. dig ; 31(1): e1346, 2018. graf
Article in English | LILACS | ID: biblio-885757

ABSTRACT

ABSTRACT Background: When a major hepatic resection is necessary, sometimes the future liver remnant is not enough to maintain sufficient liver function and patients are more likely to develop liver failure after surgery. Aim: To test the hypothesis that performing a percutaneous radiofrecuency liver partition plus percutaneous portal vein embolization (PRALPPS) for stage hepatectomy in pigs is feasible. Methods: Four pigs (Sus scrofa domesticus) both sexes with weights between 25 to 35 kg underwent percutaneous portal vein embolization with coils of the left portal vein. By contrasted CT, the difference between the liver parenchyma corresponding to the embolized zone and the normal one was identified. Immediately, using the fusion of images between ultrasound and CT as a guide, radiofrequency needles were placed percutaneouslyand then ablated until the liver partition was complete. Finally, hepatectomy was completed with a laparoscopic approach. Results: All animals have survived the procedures, with no reported complications. The successful portal embolization process was confirmed both by portography and CT. In the macroscopic analysis of the pieces, the depth of the ablation was analyzed. The hepatic hilum was respected. On the other hand, the correct position of the embolization material on the left portal vein could be also observed. Conclusion: "Percutaneous radiofrequency assisted liver partition with portal vein embolization" (PRALLPS) is a feasible procedure.


RESUMO Racional: Quando grande ressecção hepática é necessária, às vezes, o fígado remanescente não é suficiente para manter a função hepática e os pacientes são mais propensos a desenvolver insuficiência hepática após a operação. Objetivo: Testar a hipótese de que a realização de uma divisão do fígado com radiofreqüência percutânea mais a embolização percutânea da veia porta (PROPS) para a hepatectomia regrada em porcos é viável. Métodos: Quatro porcos (Sus scrofa domesticus) ambos os sexos com pesos entre 25 a 35 kg foram submetidos à embolização percutânea da veia porta com espirais da veia porta esquerda. Por TC contrastada, a diferença entre o parênquima hepático correspondente à zona embolizada e a normal foi identificada. Imediatamente, usando a fusão de imagens entre ultrassom e CT guiada, as agulhas de radiofrequência foram colocadas percutaneamente e depois foram cortando até a partição do fígado estar completa. Finalmente, a hepatectomia foi completada com abordagem laparoscópica. Resultados: Todos os animais sobreviveram aos procedimentos, sem complicações. O sucesso do processo de embolização do portal foi confirmado por portografia e CT. Na análise macroscópica das peças, analisou-se a profundidade da ablação. O hilo hepático foi respeitado. Por outro lado, a posição correta do material de embolização na veia porta esquerda também pôde ser observada. Conclusão: "Partição do fígado assistida por radiofrequência percutânea com embolização da veia porta" (PRALLPS) é um procedimento viável.


Subject(s)
Animals , Male , Female , Portal Vein , Catheter Ablation , Embolization, Therapeutic , Hepatectomy/methods , Swine
19.
Braz. j. med. biol. res ; 51(4): e6062, 2018. graf
Article in English | LILACS | ID: biblio-889069

ABSTRACT

Liver resection is the standard treatment for any liver lesion. Laparoscopic liver resection is associated with lower intra-operative blood loss and fewer complications than open resection. Access to the posterior part of the right liver lobe is very uncomfortable and difficult for surgeons due the anatomic position, especially when employing laparoscopic surgery. Based on these experiences, a new laparoscopic device was developed that is capable of bending its long axis and allowing the application of radiofrequency energy in areas that were not technically accessible. The device is equipped with four telescopic needle electrodes that cause tissue coagulation after the delivery of radiofrequency energy. Ex vivo testing was performed in 2012 and 2014 at the University Hospital, Ostrava, on a porcine liver tissue. The main goal of this testing was to verify if the newly proposed electrode layout was suitable for sufficient tissue coagulation and creating a safety zone around lesions. During the ex vivo testing, the material of needle electrodes was improved to achieve the lowest possibility of adhesion. The power supply was adjusted from 20 to 120 W and the ablation time, which varied from 10 to 110 s, was monitored. Subsequently, optimal power delivery and time for coagulation was determined. This experimental study demonstrated the feasibility and safety of the newly developed device. Based on the ex vivo testing, LARA-K1 can create a safety zone of coagulation. For further assessment of the new device, an in vivo study should be performed.


Subject(s)
Humans , Catheter Ablation/instrumentation , Laparoscopy/instrumentation , Equipment Design , Hemostasis, Surgical/instrumentation , Hepatectomy/instrumentation , Liver/surgery , Laparoscopy/methods , Hepatectomy/methods
20.
ABCD arq. bras. cir. dig ; 31(3): e1394, 2018. tab, graf
Article in English | LILACS | ID: biblio-949240

ABSTRACT

ABSTRACT Background: Percutaneous drainage for pyogenic liver abscess has been considered the gold-standard approach for the treatment on almost of the cases. However, when percutaneous drainage fails or even in some especial situations, as multiloculate abscess, lobe or segment surgical resection can solve infectious clinical condition. Aim: To report a series of patients who underwent hepatectomy for pyogenic liver abscess performed by a single surgical team. Methods: Eleven patients were operated with ages ranging from 45-73 years (mean and median 66 years). There were eight men and three women. The etiologies were: idiopathic (n=4), biliary (n=2), radiofrequency (n=2), direct extension (n=1), portal (n=1), and arterial (n=1). The mean lesion diameter was 9.27 cm (6-20 cm). Results: The mean operation length was 180 min (120-300). The mean intra-operative blood loss was 448 ml (50-1500). Surgical approaches were: right hepatectomy (n=4), left hepatectomy (n=3), left lateral sectioniectomy (n=1), right posterior sectioniectomy (n=2), resection of S8 (n=1), and S1 (n=1). Postoperative morbidity rate was 30%, while mortality was null. Median hospital stay was 18 days (5-45). The median follow-up period was 49 months (13-78). There was single lesion recurrence. Conclusion: Hepatectomy can be done as exception approach for pyogenic hepatic abscess treatment; it is a good therapeutic option in special situations.


RESUMO Racional: A drenagem percutânea do abscesso hepático piogênico tem sido considerada padrão-ouro para o tratamento na maioria dos casos. Mais raramente, quando essa abordagem falha ou em casos de abscessos multiloculados, a ressecção daquele segmento ou lobo destruído pode resolver o contexto infeccioso. Objetivo: Relatar uma série de doentes com abscesso hepático que foram submetidos a hepatectomia. Método: Onze doentes foram operados. A idade variou de 45-73 anos (média e mediana 66). Foram oito homens e três mulheres. As causas foram: idiopática (n=4), biliar (n=2), radiofrequência (n=2), portal (n=1), arterial (n=1), e extensão direta (n=1). A média do tamanho das lesões foi 9,27 cm (6-20). Resultados A média de tempo cirúrgico foi de 180 min (120-300). A média de sangramento intra-operatório foi de 448 ml (50-1500 ml). Os procedimentos cirúrgicos foram: hepatectomia D (n=4), hepatectomia E (n=3), setorectomia lateral E (n=1), setorectomia posterior D (n=2), ressecção do S8 (n=1) e S1 (n=1). A morbidade pós-operatória foi 30%, enquanto a mortalidade foi nula. Mediana de internação foi de 18 dias (5-45). A mediana de seguimento foi 49 meses (13-78). Houve uma única recidiva de lesão. Conclusão: Embora a hepatectomia possa ser considerada conduta de exceção para tratamento do abscesso hepático piogênico, ela deve ser boa opção terapêutica em situações especiais.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Liver Abscess, Pyogenic/surgery , Hepatectomy/methods
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