title: Current technical aspects of oncological hepatic surgery.
abstract: BACKGROUND
  With the recent advances in oncological hepatic surgery, major liver resections became more widely utilized procedures. The era of modern hepatic surgery witnessed improvements in patients care in preoperative, intraoperative and postoperative aspects. This significantly improved surgical outcomes regarding morbidity and mortality. This review article focuses on the recent advances in oncological hepatic surgery.
  
  
  METHODS
  This review includes only data from peer-reviewed articles and journals. PubMed database was utilized as the primary source of the supporting literature to this review article on the latest advances in oncological hepatic surgery. Comprehensive and high sensitivity search strategies were performed to search related studies exhaustively up till June 2016. We critically and independently assessed over 50 recent publications written on this topic according to the selection criteria and quality assessment standard. We paid particular attention to the studies published in high impact journals that address the use of the surgical techniques mentioned in the articles in well-known institutions.
  
  
  RESULTS
  Among all utilized approaches aiming at the preoperative assessment of the liver function, Child-Turcotte-Pugh classification remains the most reliable tool correlating with survival outcome. Although the primary radiological tools including ultrasonography, computed tomography and magnetic resonance imaging remain on top of the menu of tests utilized in assessment of focal hepatic lesions, intraoperative ultrasonography projects to be a powerful additional tool in terms of sensitivity and specificity compared to the other conventional techniques in assessment of the liver in the operative setting, a procedure that can change the surgical strategy in 27.2% of the cases and consequently improve the oncological surgical outcome. In addition to the conventional surgical techniques of liver resection and portal vein embolization, associating liver partition and portal vein ligation for staged hepatectomy "ALPPS" projects to be an alternative option in patients with marginally resectable tumors with an inadequate size of future liver remnant with an accepted surgical oncological outcome.
  
  
  CONCLUSIONS
  Considering the clinicopathological nature of hepatic lesions, the comprehensive assessment and proper choice of the liver resection technique in highly selected patients is associated with improved surgical oncological outcome. Patients with underlying marginal future liver remnant volumes can now safely benefit from a wider range of surgical intervention, a breakthrough that significantly improved morbidity and mortality in this group of patients.
authors.affiliation: Department of Surgery, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue BX7375 CLINICAL SCIENCE CNTR Madison, WI 53792-7375, USA. winslow@surgery.wisc.edu.
authors.forename: Ahmed I
authors.initials: AI
authors.lastname: Salem
authors.forename: Emily R
authors.initials: ER
authors.lastname: Winslow
mesh_terms: D017115:Catheter Ablation / Q000009:adverse effects / Q000379:methods* / Q000401:mortality; D006498:Hepatectomy / Q000009:adverse effects / Q000379:methods* / Q000401:mortality; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D012307:Risk Factors; D016896:Treatment Outcome