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Sinusoidal obstruction syndrome compromises liver regeneration in patients undergoing two-stage hepatectomy with portal vein embolization.
MedLine Citation:
PMID:  21191686     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
PURPOSE: Several factors have been reported to affect liver regeneration after portal vein embolization (PVE); however, the effect of sinusoidal obstruction syndrome (SOS) has not been evaluated. Therefore, we assessed the effect of SOS on liver regeneration after PVE in patients with multiple bilobar colorectal liver metastases scheduled to undergo two-stage hepatectomy (TSH) combined with PVE.
METHODS: The subjects of this study were 78 patients prospectively scheduled to undergo TSH between December 1996 and August 2009. Archived formalin-fixed, paraffin-embedded nontumoral tissue samples were collected from the 1st- and 2nd-stage hepatectomies in 42 and 45 patients, respectively, and SOS and steatohepatitis were diagnosed pathologically. We analyzed the clinicopathological variables affecting liver regeneration after PVE.
RESULTS: Sinusoidal obstruction syndrome was diagnosed in 11 (26.2%) and 20 patients (44.4%) at the time of the 1st- and 2nd-stage hepatectomy, respectively. Patients with SOS at the 1st-stage hepatectomy had a significantly lower hypertrophy ratio of the future remnant liver (FRL) after PVE than patients without SOS (16.8 ± 24.0 vs 55.6 ± 32.5; P < 0.001). Multivariate logistic regression analysis revealed that SOS was an independent factor predicting lower FRL hypertrophy after PVE (Δ% FRL <20: hazard ratio 31.7, 95% confidence interval 2.84-355.12; P = 0.005). The incidence of postoperative transient liver failure after the 2nd-stage hepatectomy in patients presenting with SOS was higher than that in those without SOS, but the difference did not reach significance (25.0% vs 4.0%; P = 0.052). Steatohepatitis was confirmed at the 1st- and 2nd-stage hepatectomy in 6 (14.3%) and 3 (6.7%) patients, respectively.
CONCLUSION: Sinusoidal obstruction syndrome inhibits FRL hypertrophy after PVE and induces postoperative liver failure. Therefore, an alternative strategy is needed to perform TSH safely in the presence of SOS.
Authors:
Masato Narita; Elie Oussoultzoglou; Marie-Pierre Chenard; Edoardo Rosso; Selenia Casnedi; Patrick Pessaux; Philippe Bachellier; Daniel Jaeck
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Publication Detail:
Type:  Journal Article     Date:  2010-12-30
Journal Detail:
Title:  Surgery today     Volume:  41     ISSN:  1436-2813     ISO Abbreviation:  Surg. Today     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2010-12-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9204360     Medline TA:  Surg Today     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  7-17     Citation Subset:  IM    
Affiliation:
Centre de Chirurgie Viscérale et de Transplantation, Hôpitaux Universitaires de Strasbourg, Avenue Molière, 67098 Strasbourg Cedex, France.
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