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  • Title: Operative Results and Oncologic Outcomes of Associating Liver Partition and Portal Vein Ligation for Staged Hepatectomy (ALPPS) Versus Two-Stage Hepatectomy (TSH) in Patients with Unresectable Colorectal Liver Metastases: A Systematic Review and Meta-Analysis.
    Author: Moris D, Ronnekleiv-Kelly S, Kostakis ID, Tsilimigras DI, Beal EW, Papalampros A, Dimitroulis D, Felekouras E, Pawlik TM.
    Journal: World J Surg; 2018 Mar; 42(3):806-815. PubMed ID: 28798996.
    Abstract:
    BACKGROUND: Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) has recently emerged as a treatment choice for patients with colorectal liver metastases (CLM) and inadequate future liver remnant (FLR). The aim of this study was to define the results of ALPPS compared with two-stage hepatectomy (TSH) for patients with CLM. MATERIALS AND METHODS: A meta-analysis was conducted in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analysis guidelines. Identification of eligible studies was performed using three distinct databases through February 2017; Medline, ClinicalTrials.gov and Cochrane library-Cochrane Central Register of Controlled Trials using a syntax including medical subject headings terms "portal vein ligation," "PVE," "staged hepatectomy," "staged liver resection," "liver resection," "two-stage hepatectomy," "TSH," "in situ liver transection with portal vein ligation," "associating liver partition and portal vein ligation for staged hepatectomy" and "ALPPS". RESULTS: Among the 634 records identified, 9 studies comparing ALPPS with TSH met the inclusion criteria. These studies included 657 patients with unresectable CLM (ALPPS, n = 186 vs TSH, n = 471). There was no difference in final postoperative FLR between ALPPS versus TSH (mean difference: 31.72, 95% CI: -27.33 to 90.77, p = 0.29). The kinetic growth rate was faster with the ALPPS versus TSH (mean difference 19.07 ml/day, 95% CI 8.12-30.02, p = 0.0006). TSH had a lower overall and major morbidity versus ALPPS (overall morbidity: RR: 1.39, 95% CI: 1.07-1.8, p = 0.01; I 2: 58%, p = 0.01; major morbidity: RR: 1.57, 95% CI: 1.18-2.08, p = 0.002; I 2: 0%, p = 0.44). Overall survival was comparable following ALPPS versus TSH. CONCLUSION: While ALPPS may be a suitable approach for patients, the higher morbidity and mortality should be considered when determining the operative approach for patients with extensive CLM.
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