title: Significance of stroke volume variation during hepatic resection under infrahepatic inferior vena cava and portal triad clamping.
abstract: OBJECTIVE
  Stroke volume variation (SVV), which is measured by analyzing arterial blood pressure waveform characteristics, is a simple and sensitive indicator of fluid responsiveness. The current retrospective study was to investigate SVV and central venous pressure (CVP) during hepatic resection under clamping of both the infrahepatic inferior vena cava (IVC) and the portal triad.
  
  
  METHODS
  All hepatic resections performed from December 2009 to February 2010 at the Department of Surgery at Iizuka Hospital in Japan were included in this study. Invasive hemodynamic monitoring including CVP and SVV were performed in 14 patients.
  
  
  RESULTS
  CVP was significantly lower in patients with blood loss < or = 486 g than in those with blood loss > 486 g. SVV was significantly higher in patients with blood loss < or = 486 g than those with blood loss > 486 g during both IVC clamping and IVC + portal triad clamping. Estimated blood loss was significantly less in the group with SVV values > 18% compared to the group with values < or = 18%. There was a significant correlation between SVV and CVP (R2 = 0.714; P < .01).
  
  
  CONCLUSIONS
  SVV is a useful indicator of intraoperative blood loss without the monitoring of CVP during hepatic resection under clamping of both the infrahepatic IVC and the portal triad.
authors: Department of Surgery, Iizuka Hospital, Fukuoka, Japan. nharimotoh1@fukuoka.email.ne.jp
authors: Norifumi
authors: N
authors: Harimoto
authors: Department of Anesthesia, Iizuka Hospital, Fukuoka, Japan.
authors: Hiroyuki
authors: H
authors: Matsuyama
authors: Department of Surgery, Iizuka Hospital, Fukuoka, Japan.
authors: Kiyoshi
authors: K
authors: Kajiyama
authors: Department of Surgery, Iizuka Hospital, Fukuoka, Japan.
authors: Takashi
authors: T
authors: Nagaie
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Toru
authors: T
authors: Ikegami
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Tomoharu
authors: T
authors: Yoshizumi
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Yuji
authors: Y
authors: Soejima
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Ken
authors: K
authors: Shirabe
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Tetsuo
authors: T
authors: Ikeda
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Hirofumi
authors: H
authors: Kawanaka
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Hideaki
authors: H
authors: Uchiyama
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Yo-Ichi
authors: Y
authors: Yamashita
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Masaru
authors: M
authors: Morita
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Eiji
authors: E
authors: Oki
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Hiroshi
authors: H
authors: Saeki
authors: Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Yoshihiko
authors: Y
authors: Maehara
mesh_terms: D000368:Aged; D016063:Blood Loss, Surgical / Q000517:prevention & control; D002496:Central Venous Pressure / Q000502:physiology*; D003250:Constriction; D005260:Female; D006498:Hepatectomy; D006801:Humans; D008099:Liver / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000379:methods*; D011169:Portal Vein; D013318:Stroke Volume / Q000502:physiology*; D014682:Vena Cava, Inferior