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Elevation of Liver Function Tests After Laparoscopic Gastrectomy Using a Nathanson Liver Retractor

Abstract

Background

Although pneumoperitoneum has been suspected as a possible cause of transient elevation of liver function tests (LFTs) after laparoscopic surgery, liver damage by direct retraction could also influence postoperative LFTs. The aim of this study was to clarify whether laparoscopic gastrectomy (LG) using a Nathanson retractor was associated with the postoperative elevation of LFTs compared with open gastrectomy (OG).

Methods

A retrospective cohort study of 199 LG and 120 OG patients was conducted. Serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), and total bilirubin were measured before operation and at postoperative days 1, 3, and 7. Abnormal elevation of LFTs was defined as a grade 2 or greater elevation in any parameter. To assess the possible effect of pneumoperitoneum, patients who underwent laparoscopic (n = 324) and open (n = 56) colectomy for colorectal cancer were also compared.

Results

In both LG and OG groups, LFTs were significantly elevated postoperatively compared with baseline values. Mean ALT and total bilirubin levels on days 1, 3, and 7 were significantly higher in the LG than OG group. Abnormal elevation of LFTs was more frequent in the LG than OG group (50 vs. 12%). In multivariate analysis, LG was significantly associated with postoperative liver dysfunction (odds ratio [OR] = 7.99; 95% confidence interval [95% CI] = 3.69–18.85). No significant difference in the elevation of the LFTs was observed between laparoscopic and open colectomy (6% and 9%, respectively).

Conclusions

LG resulted in frequent elevation of LFTs. Care should be taken to minimize intraoperative liver damage when performing LG using a Nathanson retractor.

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Abbreviations

ALHA:

Aberrant left hepatic artery

ALT:

Alanine aminotransferase

AST:

Aspartate aminotransferase

ASA:

American Society of Anesthesiologists classification

CI:

Confidence interval

LFTs:

Liver function tests

LG:

Laparoscopic gastrectomy

LC:

Laparoscopic colectomy

NCI-CTCAE:

National Cancer Institute Common Terminology Criteria for Adverse Events

OC:

Open colectomy

OG:

Open gastrectomy

OR:

Odds ratio

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Acknowledgments

The authors acknowledge the invaluable help with data management by the Division of Clinical Trial Design & Management, Translational Research Center, Kyoto University Hospital.

Conflict of interest

The authors no conflicts of interest to declare.

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Correspondence to Hiroshi Okabe.

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Kinjo, Y., Okabe, H., Obama, K. et al. Elevation of Liver Function Tests After Laparoscopic Gastrectomy Using a Nathanson Liver Retractor. World J Surg 35, 2730–2738 (2011). https://doi.org/10.1007/s00268-011-1301-6

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  • DOI: https://doi.org/10.1007/s00268-011-1301-6

Keywords

  • Laparoscopic Colectomy
  • Laparoscopic Gastrectomy
  • Open Gastrectomy
  • Liver Retraction
  • Abnormal Elevation