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1.
An extended hepatectomy combined with preoperative portal venous embolization can offer curative resection in patients with initially unresectable hepatocellular carcinoma. However, hypertrophy of the future remnant liver is occasionally unsatisfactory after portal venous embolization in some patients to remove the initially unresectable tumor. In these patients, hepatic venous reconstruction to preserve hepatic parenchyma may contribute to the possibility of resection. The present case report shows a patient with an initially unresectable huge hepatocellular carcinoma in whom transarterial chemoembolization, portal vein embolization, and an extended right hepatectomy combined with distal middle hepatic venous reconstruction were performed to preserve Segment 4 inferior. The patient was a 66-year-old male. He presented with a huge hepatocellular carcinoma located at Segment 8, 7 and 4 superior, but the volume of the left lateral segment was only 267 mL. Transarterial chemoembolization was performed twice and right portal vein embolization was performed once, but the volume of the left lateral segment was only 318 mL compared to 487 mL which was a limit of future remnant liver volume. We therefore performed an extended right hepatectomy combined with distal middle hepatic venous reconstruction to preserve Segment 4 inferior. The left saphenous venous graft was used for this hepatic venous reconstruction. His postoperative course was almost uneventful. Postoperative abdominal computed tomography showed the satisfactorily preserved Segment 4 inferior. Distal hepatic venous reconstruction combined with an extended hepatectomy may further offer a chance of a curative resection for patients in whom enough hypertrophy of the future remnant liver is not obtained after portal venous embolization.  相似文献   

2.
Resectability of hepatocellular carcinoma in patients with chronic liver disease is dramatically limited by the need to preserve sufficient remnant liver in order to avoid postoperative liver insufficiency. Preoperative treatments aimed at downsizing the tumor and promoting hypertrophy of the future remnant liver may improve resectability and reduce operative morbidity. Here we report the case of a patient with a large hepatocellular carcinoma arising from chronic liver disease. Preoperative treatment, including tumor downsizing with transarterial radioembolization and induction of future remnant liver hypertrophy with right portal vein embolization, resulted in a 53% reduction in tumor volume and compensatory hypertrophy in the contralateral liver. The patient subsequently underwent extended right hepatectomy with no postoperative signs of liver decompensation. Pathological examination demonstrated a margin-free resection and major tumor response. This new therapeutic sequence, combining efficient tumor targeting and subsequent portal vein embolization, could improve the feasibility and safety of major liver resection for hepatocellular carcinoma in patients with liver injury.  相似文献   

3.
Abstract Objective. Compare perioperative course and long-term mortality after liver resection for colorectal cancer (CRC) metastases between patients who had preoperative treatment with portal vein embolization (PVE) and chemotherapy or chemotherapy alone. Methods. Among patients undergoing liver resection for CRC metastases following preoperative chemotherapy treatment, 17 patients who had received preoperative PVE (group A) were compared with 17 matched controls who had no PVE (group B). Perioperative course and long-term mortality were compared between groups A and B and between group A and the entire group of 75 cases with preoperative chemotherapy (group C). Results. Baseline characteristics for the matched groups A and B were similar. Group C included less major resections. Median intraoperative bleeding was 1600 ml in group A, 1200 ml in group B, and 1000 ml in group C (p < 0.05 vs. group A). Median postoperative stay was comparable in all groups (8-9 days). Operation time was 542 min in group A and 464 min in group B (p < 0.01). Mortality after 30 days and 1, 2, and 5 years was similar in all groups. Conclusion. Perioperative outcome and long-term survival did not differ when comparing liver resection for CRC liver metastases preceded by PVE and chemotherapy or chemotherapy alone, except for the operation time. The study supports the safety of this "aggressive" combination approach in patients in need of tumor "downstaging" by chemotherapy and PVE to increase the remnant liver volume.  相似文献   

4.
Hepatic resection for colorectal liver metastases remains the only therapeutic option that improves long-term survival and offers potential cure. By conventional resectability criteria, only a limited number of patients with metastatic disease can be subjected to surgical intervention. In the past decade, better understanding of the natural history of the disease, the introduction of new chemotherapy agents and the advances in surgical techniques have led to more patients being eligible for surgery. Neoadjuvant chemotherapy can reduce the size of the metastases, allowing operation on patients who were previously considered inoperable. Major resections can nowadays be safely performed with the development of new less-invasive techniques and with the use of supplementary tools like ablation techniques. Using portal vein embolization to induce hypertrophy of future liver remnant and combining it with two-staged hepatectomy allow more patients with advanced disease to undergo potentially curative surgery. Careful selection of patients and aggressive surgery in experienced centers improve survival rates.  相似文献   

5.
Hepatic resection for colorectal liver metastases remains the only therapeutic option that improves long-term survival and offers potential cure. By conventional resectability criteria, only a limited number of patients with metastatic disease can be subjected to surgical intervention. In the past decade, better understanding of the natural history of the disease, the introduction of new chemotherapy agents and the advances in surgical techniques have led to more patients being eligible for surgery. Neoadjuvant chemotherapy can reduce the size of the metastases, allowing operation on patients who were previously considered inoperable. Major resections can nowadays be safely performed with the development of new less-invasive techniques and with the use of supplementary tools like ablation techniques. Using portal vein embolization to induce hypertrophy of future liver remnant and combining it with two-staged hepatectomy allow more patients with advanced disease to undergo potentially curative surgery. Careful selection of patients and aggressive surgery in experienced centers improve survival rates.  相似文献   

6.
BackgroundSome patients remain deemed unsuitable for resection after portal vein embolization (PVE) because of insufficient hypertrophy of the future remnant liver (FRL). Hepatic and portal vein embolization (HPVE) has been shown to induce hypertrophy of the FRL. The aim of this study was to provide a systematic review of the available literature on HPVE as preparation for major hepatectomy.MethodsThe literature search was performed on online databases. Studies including patients who underwent preoperative HPVE were retrieved for evaluation.ResultsSix articles including 68 patients were published between 2003 and 2017. HPVE was performed successfully in all patients with no mortality and morbidity-related procedures. The degree of hypertrophy of the FRL after HPVE ranged from 33% to 63.3%. Surgical resection after preoperative HPVE could be performed in 85.3% of patients, but 14.7% remained unsuitable for resection because of insufficient hypertrophy of the FRL or tumor progression. Posthepatectomy morbidity and mortality rates were 10.3% and 5.1%, respectively. The postoperative liver failure rate was nil.ConclusionHPVE as a preparation for major hepatectomy appears to be feasible and safe and could increase the resectability of patients initially deemed unsuitable for resection because of absent or insufficient hypertrophy of the FRL after PVE alone.  相似文献   

7.
BACKGROUND: In patients with malignant primary and secondary liver tumours or proximal bile duct carcinoma radical surgery is superior to all other therapeutic modalities in terms of survival and quality of life. Radical resection, however, often requires the removal of a large amount of liver parenchyma, resulting in a marked reduction of functional liver tissue with the risk of liver failure. AIM: Preoperative partial portal vein embolisation induces hypertrophy of the controlateral liver and thereby increases the safety of extended liver resections. PATIENTS AND METHODS: Between January 1997 and February 2001 we applied this strategy in 19 patients with primary and secondary nonresectable hepatobiliary malignancies, in whom the estimated amount of the remnant liver was < or =25% of the liver volume. RESULTS: The increase in volume ranged between 7 and 245%. Radical extended liver resection was performed in 13 patients (68%) without mortality. After a mean observation time of 22 months patient survival was 19 months with six tumour-related deaths during the second year after surgery. The remaining seven patients are alive and well with tumour recurrence in one. CONCLUSION: Preoperative partial portal vein embolisation allows more patients with previously unresectable liver tumours to benefit from a potentially curative resection.  相似文献   

8.
BACKGROUND/AIMS: Preoperative portal vein embolization induces hypertrophy of the future remnant liver and atrophy of the liver to be resected. This procedure has been used recently to avoid hepatic failure in extensive hepatic resection, but an adequate embolizing material has not been developed. This experimental study investigated the embolization effect of a newly devised embolizing material in dogs. METHODOLOGY: The left branch of the portal vein was embolized with an emulsion of polidocanol and gelatin sponge. We studied the changes in liver weight and biochemical data up to 8 weeks after embolization. Pathological examination of the embolized portal vein and radiological study of the embolizing effect were performed. RESULTS: Complete obstruction of the portal vein was maintained until 8 weeks after embolization. Sufficient hypertrophy of the non-embolized liver and atrophy of the embolized liver were obtained during this examination. No serious complication was observed. CONCLUSIONS: The mixture of polidocanol and gelatin sponge seems to ensure perfect portal embolization without recanalization. This embolizing material is suitable for portal embolization.  相似文献   

9.
Thirty years have passed since the first report of portal vein embolization(PVE),and this procedure is widely adopted as a preoperative treatment procedure for patients with a small future liver remnant(FLR).PVE has been shown to be useful in patients with hepatocellular carcinoma(HCC)and chronic liver disease.However,special caution is needed when PVE is applied prior to subsequent major hepatic resection in cases with cirrhotic livers,and volumetric analysis of the liver segments in addition to evaluation of the liver functional reserve before PVE is mandatory in such cases.Advances in the embolic material and selection of the treatment approach,and combined use of PVE and transcatheter arterial embolization/chemoembolization have yielded improved outcomes after PVE and major hepatic resections.A novel procedure termed the associating liver partition and portal vein ligation for staged hepatectomy has been gaining attention because of the rapid hypertrophy of the FLR observed in patients undergoing this procedure,however,application of this technique in HCC patients requires special caution,as it has been shown to be associated with a high morbidity and mortality even in cases with essentially healthy livers.  相似文献   

10.
BACKGROUND/AIMS: Preoperative right portal vein embolization enhances remnant liver function following massive hepatectomy. Several studies have reported an increase in the volume of the left hepatic lobe after right portal vein embolization, but little information exists regarding heat shock protein induction in hepatocytes after right portal vein embolization. The objective of this study is to determine whether heat shock protein is induced in hepatocytes after right portal vein embolization in patients who underwent extended right hepatic lobectomy. METHODOLOGY: Four patients with gallbladder cancer and one patient with intrahepatic cholangiocellular carcinoma who underwent extended right hepatic lobectomy combined with caudate lobectomy and resection of the extrahepatic bile duct after right portal vein embolization were enrolled in this study. Operation was performed 21-36 days after right portal vein embolization. At operation, small liver specimens were taken immediately after laparotomy from both the right anterior segment (embolized lobe) and lower part of the left medial segment (non-embolized lobe) and heat shock protein 70 was induction in these specimens was measured by Western blotting. RESULTS: Heat shock protein 70 was induced in the left lobe relative to the right lobe in four patients, three of whom had an uneventful postoperative course. CONCLUSIONS: This paper is the first report to show the induction of heat shock protein 70 in the non-embolized hepatic lobe after right portal vein embolization in the clinical cases.  相似文献   

11.
Since its introduction in 2012, associating liver partition with portal vein ligation for staged hepatectomy (ALPPS) has significantly expanded the pool of candidates for liver resection. It offers patients with insufficient liver function a chance of a cure. ALPPS is most controversial when its high morbidity and mortality is concerned. Operative mortality is usually a result of post-hepatectomy liver failure and can be minimized with careful patient selection. Elderly patients have limited reserve for tolerating the demanding operation. Patients with colorectal liver metastasis have normal liver and are ideal candidates. ALPPS for cholangiocarcinoma is technically challenging and associated with fair outcomes. Patients with hepatocellular carcinoma have chronic liver disease and limited parenchymal hypertrophy. However, in selected patients with limited hepatic fibrosis satisfactory outcomes have been produced. During the inter-stage period, serum bilirubin and creatinine level and presence of surgical complication predict mortality after stage II. Kinetic growth rate and hepatobiliary scintigraphy also guide the decision whether to postpone or omit stage II surgery. The outcomes of ALPPS have been improved by a combination of technical modifications. In patients with challenging anatomy, partial ALPPS potentially reduces morbidity, but remnant hypertrophy may compare unfavorably to a complete split. When compared to conventional two-stage hepatectomy with portal vein embolization or portal vein ligation, ALPPS offers a higher resection rate for colorectal liver metastasis without increased morbidity or mortality. While ALPPS has obvious theoretical oncological advantages over two-stage hepatectomy, the long-term outcomes are yet to be determined.  相似文献   

12.
Abstract

Objective. Compare perioperative course and long-term mortality after liver resection for colorectal cancer (CRC) metastases between patients who had preoperative treatment with portal vein embolization (PVE) and chemotherapy or chemotherapy alone. Methods. Among patients undergoing liver resection for CRC metastases following preoperative chemotherapy treatment, 17 patients who had received preoperative PVE (group A) were compared with 17 matched controls who had no PVE (group B). Perioperative course and long-term mortality were compared between groups A and B and between group A and the entire group of 75 cases with preoperative chemotherapy (group C). Results. Baseline characteristics for the matched groups A and B were similar. Group C included less major resections. Median intraoperative bleeding was 1600 ml in group A, 1200 ml in group B, and 1000 ml in group C (p < 0.05 vs. group A). Median postoperative stay was comparable in all groups (8–9 days). Operation time was 542 min in group A and 464 min in group B (p < 0.01). Mortality after 30 days and 1, 2, and 5 years was similar in all groups. Conclusion. Perioperative outcome and long-term survival did not differ when comparing liver resection for CRC liver metastases preceded by PVE and chemotherapy or chemotherapy alone, except for the operation time. The study supports the safety of this “aggressive” combination approach in patients in need of tumor “downstaging” by chemotherapy and PVE to increase the remnant liver volume.  相似文献   

13.
Hepatocellular carcinoma may be unresectable for volumetric reasons. The future remaining liver after hepatectomy might be too small to ensure survival. Preoperative selective portal vein embolization of the tumorous lobe can induce hypertrophy of the future remaining liver and enable safer surgery. A 76-year-old patient with hepatocellular carcinoma needed right lobectomy however, the future remaining liver was judged insufficient to ensure an uneventful postoperative course. The left lobe to whole liver volumetric ratio was to small (29.7%) and a preoperative selective portal vein embolization of the right portal branch via a percutaneous, transhepatic, contralateral approach was performed without side effects. A Doppler estimation of left branch portal blood flow and velocity was carried out before and after preoperative selective portal vein embolization. After 21 days the left lobe volume increased by about 44.2% with a safe left lobe/whole liver ratio of 40.8%. The portal blood flow and portal blood flow velocity showed an increase of 253% and 122%, respectively. A right lobectomy was performed without complications. Three months later, computed tomography scan showed no hepatocellular carcinoma recurrence. Preoperative selective portal vein embolization is a safe technique which can enable major hepatectomy to be performed in situations otherwise judged unresectable for a life-threatening volumetric insufficiency. The portal blood flow and portal blood flow velocity evaluations can easily predict the hypertrophy rate of non-embolized liver segments.  相似文献   

14.
BACKGROUND/AIMS: Hepatic resection offers the best chance of survival for patients with liver metastases (LM) of colorectal origin. However, some patients are not eligible for surgery because of a too small future liver remnant (FLR) which carries a high risk of severe postoperative liver failure. The operability status of these patients can be favorably changed by selective right portal vein embolization (PVE) which induces compensatory growth of the left liver. However, during liver regeneration following right PVE, the left LM growth rate is faster than that of the non-embolized normal liver parenchyma. This study aimed at examining an approach for those patients in which there is bilateral LM potentially resectable following portal vein embolization, but in which there is a risk of rapid liver metastasis growth in the non-embolized liver. METHODOLOGY: Between October 1998 and January 2001, 5 patients underwent simultaneous right PVE and radiofrequency ablation (RFA) of a left LM, prior to a major right-sided hepatectomy for initially unresectable bilateral LM. All these patients had one LM in the left liver in addition with multiple LM in the right liver. Simultaneous right PVE and left RFA was performed percutaneously under intravenous sedation and analgesia. One month later, hepatectomy was undertaken. To allow histologic assessment of the RFA effectiveness, the previously treated left-sided tumor was also resected and analyzed. RESULTS: Simultaneous PVE-RFA was successful in all patients. No tumor growth on the RFA site was observed during the interval between PVE-RFA and surgery. Histologic examination showed complete tumor sterilization of the RFA necrotic zone. In the postoperative course, 1 patient died of acute liver failure. For the 4 remaining patients, morbidity was minimal (transient bile leak in one patient). CONCLUSIONS: Simultaneous percutaneous right PVE and left RFA is feasible. This procedure allowed good left-sided tumor control during liver growth following PVE in all five patients. It is the most logical procedure for patients with bilateral colorectal LM needing right PVE before resection, if the left concomitant LM is small and accessible to percutaneous RFA. This procedure should be preferred because it eliminates the risk of left LM growth during the 1-month interval between PVE and surgery.  相似文献   

15.
Hepatocellular carcinoma (HCC) is best treated by liver transplantation, but the applicability of transplantation is greatly limited. Tumor resection in partial hepatectomy is hence resorted to. However, in most parts of the world, only 20%-30% of HCCs are resectable. The main reason for such a low resectability is a future liver remnant too small to be sufficient for the patient. To allow more HCC patients to undergo curative hepatectomy, a variety of ways have been developed to increase the resectability of HCC, mainly ways to increase the future liver remnants in patients through hypertrophy. They include portal vein embolization, sequential transarterial chemoembolization and portal vein embolization, staged hepatectomy, two-staged hepatectomy with portal vein ligation, and Associating Liver Partition and Portal Vein Ligation in Staged Hepatectomy. Herein we review, describe and evaluate these different ways, ways that can be life-saving.  相似文献   

16.
Preoperative percutaneous transhepatic portal vein embolization (PTPE) has been used in recent years to decrease the amount of liver resected and to reduce the risk of postoperative liver failure in patients with hepatocellular carcinoma. Various thrombogenic agents have been employed for this purpose. We evaluated the clinical safety and efficacy of absolute ethanol for PTPE and examined the histopathologic changes that follow ethanol embolization of the liver. We studied nine patients with hepatocellular carcinoma who were not originally regarded as surgical candidates because of a high risk of postoperative liver failure. They received preoperative PTPE of the right portal vein, with an average of 22.8 ml of absolute ethanol. The right lobe showed complete obstruction of portal venous branches and massive necrosis of the liver parenchyma. Macroscopically, there was atrophy of the embolized lobes and compensatory hypertrophy of the remaining lobes. The mean volume of the nonembolized lobe increased, from 351 to 585 and 633 ml, 2 and 4 weeks after embolization, respectively. The mean regeneration rate of this lobe was 16.7 cm3/day for the first 2 weeks after embolization and 10.1 cm3/day for the first 4 weeks. Transient dynamic increases in alanine aminotransferase concentrations were seen. All patients subsequently underwent right lobectomy of the liver and survived without severe complications. Portal vein embolization with absolute ethanol makes more extensive hepatectomy possible by reducing the volume necessary to resect, and it preserves the function of the remaining liver.  相似文献   

17.
AIM:To evaluate the effectiveness and safety ofdifferent portal vein branch embolization agents ininducing compensatory hypertrophy of the remnantliver and to offer a theoretic basis for clinical portal veinbranch embolization.METHODS:Forty-one adult dogs were included in theexperiment and divided into four groups.Five dogsserved as a control group,12 as a gelfoam group,12as a coil-gelfoam group and 12 as an absolute ethanolgroup.Left portal vein embolization was performed ineach group.The results from the embolization in eachgroup using different embolic agents were compared.The safety of portal vein embolization(PVE)wasevaluated by liver function test,computed tomography(CT)and digital subtraction angiography(DSA)ofliver and portal veins.Statistical test of variance wasperformed to analyze the results.RESULTS:Gelfoam used for PVE was inefficient inrecanalization of portal vein branch 4 wk after theprocedure.The liver volume in groups of coil-gelfoamand absolute ethanol increased 25.1% and 33.18%,respectively.There was no evidence of recanalization ofembolized portal vein,hepatic dysfunction,and portalhypertension in coil-gelfoam group and absolute ethanolgroup.CONCOUSION:Portal vein branch embolization usingabsolute ethanol and coil-gelfoam could induce atrophyof the embolized lobes and compensatory hypertrophy ofthe remnant liver.Gelfoam is an inefficient agent.  相似文献   

18.
BACKGROUND/AIMS: Inadequate remnant liver volume is the major cause of postoperative liver failure. Preoperative portal vein embolization (PVE) is the well accepted procedure to increase future liver remnant (FLR) volume and decrease the incidence of this complication. This study described the author's experience of preoperative PVE at King Chulalongkorn Memorial Hospital since 2002. METHODOLOGY: The clinical data of 29 patients who underwent PVE were reviewed. The FLR volumes before and after the procedure were calculated by CT volumetry. PVE was performed when estimated FLR volume was < 25% in normal liver or < 40% in damaged liver and also when major liver resection combined with major intraabdominal surgery was planned. The complications after PVE and hepatectomy were recorded. RESULTS: There were no deaths or complications after PVE. The mean growth of FLR was 11%. Power of liver regeneration was suboptimal in old age patients. Sixteen patients underwent liver resection (resectability rate 55.17%). There were 2 cases of postoperative hyperbilirubinemia (12.5%). The hospital mortality rate was 1/16 (6.25%). CONCLUSIONS: PVE is a useful and safe optional procedure to increase FLR. It not only reduces the postoperative liver failure but also increases the chance of curative resection.  相似文献   

19.
The main goal of liver resection in patients with liver tumor is to cure the patients with the lowest operative risk. Based on our experiences, we report herein, indications of liver resection according to the nature of underlying liver parenchyma. In patients with normal underlying liver parenchyma, major resection does not require specific preoperative assessment. Non-tumorous biopsy is indicated in cases of massive steatosis and/or in patients in whom a complex technical procedure is anticipated. Portal vein embolization (PVE) is considered if the future liver remnant (FLR) is <30%. In patients with chronic liver disease, major hepatectomy is a risky situation, requiring specific preoperative assessment, including non-tumorous biopsy and PVE which could be associated with transarterial chemoembolization. Absence of hypertrophy of the FLR after PVE is a contraindication to a major hepatectomy. Intraoperative procedures in patients “at risk” require specific techniques, including intermittent clamping, anterior approach with hanging maneuver, and fixation on anatomical position of the remnant liver.  相似文献   

20.
BACKGROUND/AIMS: The surgical treatments for liver metastases from colorectal cancer with massive portal venous tumor thrombi were evaluated. METHODOLOGY: Five patients, among the 142 patients who underwent hepatic resection for liver metastases from colorectal cancer from 1989 to 1998, were included in this study. The tumor thrombi in the main portal vein were removed by the following procedures; (1) the circumferential incision of the first branch of the portal vein and removal of the exposed tumor thrombi with ring forceps and suction, (2) temporary clamping of the distal end, (3) dilatation of the round ligament and the venous cannula was inserted into the umbilical portion, (4) washing out of the residual tumor thrombi, (5) declamping of the distal end and closing suture of the cut end of the portal branch. RESULTS: All patients had metachronous metastases and underwent resections of the primary tumor within 2 years. The surgical procedures performed were as follows: two cases that underwent right hepatectomies with portal venous tumor thrombectomies, one right trisectionectomy with portal venous tumor thrombectomy, one right hepatectomy plus limited resection of the contralateral lobe, and one left lateral sectionectomy with limited resection of the right lobe. All patients had no major postoperative complications and returned to their social lives within 1 month after operation. The intra-arterial catheter devices were implanted in four patients in order to receive adjuvant chemotherapy. One patient survived the 36-month period after liver resection, although 4 patients died of liver recurrence within 12 months. The mean survival time was 14.4 months and the overall 1-year survival rate was 20.0 percent. CONCLUSIONS: Surgical resection for this disease may bring longer survival rates for some patients, but not be an effective therapeutic option in our series. We should create other adjuvant therapies to improve these survival rates.  相似文献   

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