Increased Stiffness of the Remnant Right Lobe Liver After Left Lobectomy or Lateral Segmentectomy in Donors of Living-Donor Liver Transplantation.

Abstract:

BACKGROUND:Liver stiffness is associated with the degree of fibrosis along with other factors. Abrupt change of liver perfusion after hepatectomy is one such factor. In this study, we performed ultrasound elastography to explore the stiffness of the right lobe liver before and after hepatectomy in donors who underwent resection of left lobe or lateral segment of liver. METHODS:A total of 32 left lobe liver donors (18 male and 14 female; age range, 21-55 years; mean age, 35.1 years; 19 left lobectomy with middle hepatic reserved for graft and 13 lateral segmentectomy with middle hepatic vein reserved in the remnant liver) were included in this study. Liver stiffness was measured by means of ultrasound elastography with the use of acoustic radiation force impulse imaging. Stiffness of the right lobe liver was obtained by means of right intercostal approach. RESULTS:The stiffness of remnant right lobe liver significantly increased after hepatectomy (1.24 ± 0.18 vs 1.10 ± 0.13 m/s; P = .001). Donors of left lobe liver showed higher stiffness in the remnant right lobe liver compared with donors of lateral segment (1.30 ± 0.18 vs 1.15 ± 0.14 m/s; P = .027). There was no significant correlation between the remnant right lobe liver stiffness, postoperative liver function, and flow parameters of hepatic artery and portal vein. CONCLUSIONS:The stiffness of remnant liver significantly increased after hepatectomy. Furthermore, the stiffness was higher in donors undergoing left lobectomy compared with those undergoing lateral segmentectomy.

journal_name

Transplant Proc

authors

Wang HK,Lai YC,Lin YH,Chiou HJ,Chou YH

doi

10.1016/j.transproceed.2017.03.046

subject

Has Abstract

pub_date

2017-06-01 00:00:00

pages

1073-1075

issue

5

eissn

0041-1345

issn

1873-2623

pii

S0041-1345(17)30266-X

journal_volume

49

pub_type

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