title: Hemostatic parameters after hepatectomy for cancer.
abstract: OBJECTIVE
  Epidural analgesia improves postoperative outcome, and should benefit patients undergoing hepatectomy for cancer. However, the combination of underlying disease, surgery, and blood loss after hepatectomy may lead to hemostatic changes that, theoretically, increase the risk of epidural hematoma. To quantify these changes, we retrospectively reviewed the records of 229 patients at the Prince of Wales Hospital, Hong Kong.
  
  
  METHODS
  We analyzed the hemostatic parameters of those in whom there were complete data (n=143) up to postoperative day 3.
  
  
  RESULTS
  We found considerable derangements in the international normalized ratio (INR), prothrombin time, activated partial thromboplastin time (aPTT), and platelet counts, with peak derangements occurring around postoperative day 2. The amount of liver resected and the preoperative Model for End-Stage Liver Disease score were predictors of peak INR > or = 1.5 in the postoperative period.
  
  
  CONCLUSIONS
  We conclude that commonly measured hemostatic parameters are deranged after hepatectomy for cancer. Because of the complex cancer- and surgery-related hemostatic changes, whether these changes indeed indicate increased risk of neuraxial hematoma associated with neuraxial blocks is unclear. We also found that most Chinese patients were managed adequately with patient-controlled intravenous morphine. Clinicians contemplating neuraxial block on patients undergoing hepatectomy for cancer must weigh the potential risks and benefits.
authors: Department of Anaesthesia & Intensive Care, The Chinese University of Hong Kong Prince of Wales Hospital, Shatin, NT, Hong Kong. hoamh@cuhk.edu.hk
authors: Anthony M H
authors: AM
authors: Ho
authors: Anna
authors: A
authors: Lee
authors: Manoj K
authors: MK
authors: Karmakar
authors: Winnie
authors: W
authors: Samy
authors: Paul B S
authors: PB
authors: Lai
authors: Olivia A
authors: OA
authors: Ho
authors: Amy
authors: A
authors: Cho
mesh_terms: D005260:Female; D006487:Hemostasis; D006498:Hepatectomy; D006801:Humans; D008113:Liver Neoplasms / Q000097:blood* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies