The Contemporary Role of Resection and Ablation in Colorectal Cancer Liver Metastases

2020 ◽  
Vol 04 (03) ◽  
pp. 291-302
Author(s):  
Mariam F. Eskander ◽  
Christopher T. Aquina ◽  
Aslam Ejaz ◽  
Timothy M. Pawlik

AbstractAdvances in the field of surgical oncology have turned metastatic colorectal cancer of the liver from a lethal disease to a chronic disease and have ushered in a new era of multimodal therapy for this challenging illness. A better understanding of tumor behavior and more effective systemic therapy have led to the increased use of neoadjuvant therapy. Surgical resection remains the gold standard for treatment but without the size, distribution, and margin restrictions of the past. Lesions are considered resectable if they can safely be removed with tumor-free margins and a sufficient liver remnant. Minimally invasive liver resections are a safe alternative to open surgery and may offer some advantages. Techniques such as portal vein embolization, association of liver partition with portal vein ligation for staged hepatectomy, and radioembolization can be used to grow the liver remnant and allow for resection. If resection is not possible, nonresectional ablation therapy, including radiofrequency and microwave ablation, can be performed alone or in conjunction with resection. This article presents the most up-to-date literature on resection and ablation, with a discussion of current controversies and future directions.

2020 ◽  
pp. 1-8
Author(s):  
Yuzo Yamamoto

<b><i>Background:</i></b> Prevention of posthepatectomy liver failure is a prerequisite for improving the postoperative outcome of perihilar cholangiocarcinoma. From this perspective, appropriate assessment of future liver remnant (FLR) function and the optimized preparation are mandatory. <b><i>Summary:</i></b> FLR volume ratio using CT volumetry based on 3-dimensional vascular imaging is the current assessment yardstick and is sufficient for assessing a normal liver. However, in a liver with underling parenchymal disease such as fibrosis or prolonged jaundice, weighing up the degree of liver damage against the FLR volume ratio is necessary to know the real FLR function. For this purpose, the indocyanine green (ICG) clearance test, monoethylglycinexylidide (MEGX) test, liver maximum capacity (LiMAX) test, <sup>99m</sup>Tc-labeled galactosyl human serum albumin (<sup>99m</sup>Tc-GSA) scintigraphy, albumin-bilirubin (ALBI) grade, and ALPlat (albumin × platelets) criterion are used. After the optimization of FLR function by means of portal vein embolization or associating liver partition and PVL (portal vein ligation) for staged hepatectomy (ALPPS), SPECT scintigraphy with either <sup>99m</sup>Tc-GSA or <sup>99m</sup>Tc-mebrofenin compensates for misestimation due to the regional heterogeneity of liver function. The role of preoperative biliary drainage has long been debated, with the associated complications having led to a lack of approval. However, the recent establishment of safety and an improvement in success rates of endoscopic biliary drainage seem to be changing the awareness of the importance of biliary drainage. <b><i>Key Messages:</i></b> Appropriate selection of an assessment method is of prime importance to predict the FLR function according to the preoperative condition of the liver. Preoperative biliary drainage in patients with perihilar cholangiocarcinoma is gaining support due to the increasing safety and success rate, especially in patients who need optimization of their liver function before hepatectomy.


HPB ◽  
2021 ◽  
Author(s):  
Hassaan Bari ◽  
Umasankar M. Thiyagarajan ◽  
Rachel Brown ◽  
Keith J. Roberts ◽  
Nikolaos Chatzizacharias ◽  
...  

2019 ◽  
Author(s):  
Brian E Kadera ◽  
Michael D’Angelica

Metastatic colorectal cancer isolated to the liver is a common clinical presentation in the United States, occurring in an estimated 50,000 patients per year. Unlike most stage IV malignancies, surgery is an effective mainstay of therapy. In the past several decades, novel surgical approaches, improved systemic chemotherapy, and locoregional therapies such as ablation and hepatic arterial infusion chemotherapy have broadened the indications for resection. At the same time, advances in perioperative care and adoption of parenchymal-sparing surgical techniques have lowered the perioperative mortality of liver resection to approximately 1%. Surgical cure is possible and using 10-year disease-free survival as a definition, this can be achieved in approximately 20 to 30% of well-selected patients. The majority of patients recur; thus, active surveillance is appropriate to identify patients for potential salvage therapy, including in some cases repeat resections and/or ablation, which is associated with prolonged survival and potential cure. More research is needed in biomarker drivers of prognosis, as there are few reliable clinicopathologic indicators to identify those in whom surgery will not benefit. This review contains 7 figures, 7 tables, and 90 references. Key Words: colorectal cancer, FOLFOX, FOLFIRI, hepatic arterial infusion, hepatic resection, liver remnant, microwave ablation, portal vein ligation, ALPPS


2018 ◽  
Vol 3 ◽  
pp. 66-66 ◽  
Author(s):  
Arezou Abbasi ◽  
Amir A. Rahnemai-Azar ◽  
Katiuscha Merath ◽  
Sharon M. Weber ◽  
Daniel E. Abbott ◽  
...  

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 4578-4578
Author(s):  
Gang Huang

4578 Background: Both Portal Vein Embolization (PVE) and Associating Liver Partition and Portal vein ligation for Staged hepatectomy (ALPPS) have been used in patients with unresectable hepatocellular carcinoma (HCC) due to insufficient volumes in future liver remnant (FLR). But it remains unclear for which thetapy has better long-term overall survival. Methods: This study was a single-center, prospective randomized comparative study. Patients were randomly assigned in a 1:1 ratio to the 2 groups. The primary endpoints was three-year overall survival rates. Results: Between November 2014 to June 2016, 76 patients with unresectable HCC due to inadequate volume of FLR were randomly assigned to ALPPS groups (n = 38) and PVE groups (n = 38). Thirty-seven patients (97.4%) in the ALPPS Group compared with 25 patients (65.8%) in the PVE Group were able to undergo staged hepatectomy (risk ratio 1.48, 95% CI 1.17-1.87, p < 0.001). The three-year overall survival (OS) rate of the ALPPS group (65.8%) (95% CI 50.7-80.9) was significantly better than the PVE Group (42.1%) (95% CI 26.4-57.8), (HR 0.50, 95% CI 0.26-0.98, two-sided p = 0.036). Major postoperative complications rates after the stage-2 hepatectomy were 54.1% in the ALPPS group and 20.0% in the PVE group ((risk ratio 2.70, 95% CI 1.17-6.25, p = 0.007). Conclusions: ALPPS resulted in significantly better long-term overall survival outcomes, at the expenses of a significantly higher perioperative morbidity rate compared with PVE in patients who had initially unresectable HCC. Clinical trial information: ChiCTR-IOC-14005646 .


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