Liver transplantation for unresectable colorectal metastasis: a new hope.
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ABSTRACT:
SUBMITTER: Gorgen A
PROVIDER: S-EPMC7603917 | biostudies-literature | 2020 Oct
REPOSITORIES: biostudies-literature
Publications
Liver transplantation for unresectable colorectal metastasis: a new hope.
Gorgen Andre A Ivanics Tommy T Sapisochin Gonzalo G
Hepatobiliary surgery and nutrition 20201001 5
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Project description:The treatment of unresectable colorectal liver metastasis (CRLM) has previously been limited to palliative chemotherapy. Traditionally, the role of liver transplant has not been associated with sufficient survival to justify a patient undergoing a major operation with the associated requirement for postoperative immunosuppression. With improvements in chemotherapy options, a certain subset of patients can experience stable disease for years, which has prompted investigation into the role of liver transplant in these patients. Several recent studies have shown promising results in well-selected patients, with posttransplant survival approaching that of liver transplant recipients for other diseases. Here, we present a review of the data and current protocols for liver transplant for unresectable CRLM.
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Project description:BackgroundWhile half of the patients with colorectal cancer develop metastasis, some 20% develop liver-only disease, and 10% of patients with unresectable liver disease live for 5 years. This study audits the outcomes of patients with colorectal liver metastasis to identify patients with unresectable liver metastasis eligible for a liver transplant.MethodAll patients with colorectal liver metastasis, irrespective of the presence of metastasis at other sites, registered between January 1, 2018, and December 31, 2019, were included in this retrospective audit. Patients in whom R0 Resection with adequate future liver remnant was not possible even after downstaging with chemotherapy were deemed unresectable. Overall survival was calculated using the Kaplan-Meier analysis. Patients eligible for a liver transplant were identified using the International Hepato-Pancreatico-Biliary Association (IHBPA) consensus guidelines and Oslo and Fong clinical risk scores.ResultsOut of 284 patients, 80 were treated with curative intent and 185 with palliative intent. At a median follow-up of 36 months, the median and 3-year OS were 37 months and 55% for the curative intent group and 9 months and 4% for the palliative intent group, respectively. Among 173 patients with liver-only metastasis, 13 patients (7%) satisfied the IHBPA consensus guidelines and had both Oslo and Fong scores of 2 or less. Transplant-eligible patients with unresectable liver metastasis had median and 3-year OS of 24 months and 25% against 9 months and 5% for ineligible patients, respectively.ConclusionLiver transplant has the potential to benefit a small but significant portion of patients with unresectable liver metastasis.
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Project description:Purpose of reviewLiver transplantation has emerged as a possible treatment for selected patients with nonresectable colorectal liver metastasis, but controversy still exists regarding optimal selection criteria and acceptable outcomes.Recent findingsUnivariate analysis in the largest cohorts confirms that metachronous disease, Oslo score = 0-1, metabolic tumor volume (MTV) less than 70 cm 3 , and tumor burden score less than 9 are positive predictive factors for good overall survival outcomes. Some recent trials might suggest that technical resectability is not a valid exclusion criterion for patients with high tumor load and favorable prognostic scores in the transplant evaluation. Recent developments in circulation DNA technology and liquid biopsy may play a future role in the selection and monitoring of patients.SummaryEvaluation for transplant needs multidisciplinary involvement and should not be delayed until the failure of conventional oncological therapy. Larger data sets are needed to refine the selection criteria for liver transplantation in colorectal liver metastasis (CRLM).
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Project description:BackgroundPatients with metastatic colorectal cancer receiving palliative chemotherapy have a 5-year survival rate of approximately 10 per cent. Liver transplantation using strict selection criteria in patients with colorectal cancer and unresectable liver-only disease will result in a 5-year survival rate of 56-83 per cent. The aim of this study was to evaluate survival of patients with colorectal liver metastases (CRLM) after liver transplantation using extended criteria for both patients and donors.MethodsThis was a prospective single-arm study. Patients with synchronous unresectable CRLM who were not suitable for arms A, B or C of the SEcondary CAncer (SECA) II study who had undergone radical resection of the primary tumour and received chemotherapy were included; they underwent liver transplantation with extended criteria donor grafts. Patients who had resectable pulmonary metastases were eligible for inclusion. The main exclusion criteria were BMI above 30 kg/m2 and liver metastases larger than 10 cm. Survival was estimated using Kaplan-Meier analysis.ResultsTen patients (median age 54 years; 3 women) were included. They had an extensive liver tumour load with a median of 20 (range 1-45) lesions; the median size of the largest lesion was 59 (range 15-94) mm. Eight patients had (y)pN2 disease, six had poorly differentiated or signet ring cell-differentiated primary tumours, and five had primary tumour in the ascending colon. The median Fong clinical risk score was 3 (range 2-5) and the median Oslo score was 1 (range 1-4). The median plasma carcinoembryonic antigen level was 4·3 (range 2-4346) μg/l. Median disease-free and overall survival was 4 and 18 months respectively.ConclusionPatients with unresectable liver-only CRLM undergoing liver transplantation with extended patient and donor criteria have relatively short overall survival.
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Project description:Colorectal cancer (CRC) is the third most incident cancer worldwide. Most of CRC patients will develop distant metastases, mainly to the liver, and liver resection is the only potential chance for cure. On the other hand, only a small proportion of patients with hepatic CRC metastasis are candidates for upfront liver resection. Liver transplantation (LT) is an attractive option for patients with nonresectable CRC liver metastases (NRCLM) without extrahepatic involvement. Initial experiences with LT for NRCLM achieved very poor outcomes, with a 5-year overall survival (OS) lower than 20%. However, these initial studies did not have a standardized patient selection or neoadjuvant or adjuvant therapies. With recent advances in the surgical and medical oncology fields, the landscape has changed. Recent studies from Norway have shown an encouraging 5-year OS of 50% when transplanting patients with NRCLM. Nevertheless, the main concern when expanding the indications for LT is organ shortage. To manage this organ shortage, strategies utilizing live donor liver transplantation are gaining favor. A few ongoing trials are assessing the impact of LT in NRCLM patient survival. Therefore, the aim of this paper is to review the current status of LT for NRCLM.
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Project description:ObjectiveUnresectable colorectal cancer liver metastasis (CRLM) remains a challenging obstacle that often prevents curative treatment. In this study, we retrospectively analyzed the efficacy and safety of high-intensity focused ultrasound (HIFU) as a local adjuvant therapy for systemic chemotherapy for patients with unresectable CRLM. HIFU is a noninvasive method previously demonstrated as efficacious for various solid malignancies.MethodsPropensity score matching was used for the combination therapy group (HIFU group, n = 59) and the observation group receiving systemic therapy only (No-HIFU group, n = 59). In addition, the survival benefit, adverse effects, and factors affecting prognosis following HIFU were evaluated.ResultsThe disease control rate was 77.9% and 62.7%, and the objective remission rate was 18.9% and 6.8% in the HIFU and non-HIFU groups, respectively. The survival analysis showed that median progression-free survival (mPFS) was 12.0 months and 11.0 months for the HIFU and non-HIFU groups, respectively (p = 0.002). The univariate and multivariate analysis showed that pre-treatment colorectal cancer liver metastasis lesion size was significantly associated with mPFS. In addition, patients that received a combination treatment for CRLM lesions <5.0 cm had a longer mPFS when compared to those receiving systemic therapy alone (13.0 months vs. 11.0 months, p = 0.001). In the HIFU group, patients with lesions <5.0 cm had a longer mPFS than patients with lesions ≥5.0 cm (13.0 months vs. 10.0 months, p = 0.04) (Figure 3B,C). Most treatment-related adverse events observed in both groups were grade 1-2. Only four cases (6.8%) of grade 1-2 skin burns were observed in patients in the HIFU group; no other statistically significant adverse events were observed.ConclusionsOur study showed that HIFU ablation targeting unresectable CRLM alongside systemic therapy safely and significantly improved local control rates and prolonged mPFS, especially for lesions smaller than 5.0 cm.
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