Perioperative real-time monitoring of indocyanine green clearance by pulse spectrophotometry predicts remnant liver functional reserve in resection of hepatocellular carcinoma

Author:

Ohwada S1,Kawate S1,Hamada K1,Yamada T1,Sunose Y1,Tsutsumi H1,Tago K1,Okabe T1

Affiliation:

1. Department of Surgery, Graduate School of Medicine, Gunma University, 3-39-15 Showa-Machi, Maebashi 371-8511, Japan

Abstract

Abstract Background There is no standard method for predicting remnant liver functional reserve after hepatectomy or for monitoring it in real time. Methods Indocyanine green (ICG) clearance (K) was measured non-invasively and instantaneously using pulse spectrophotometry before surgery, during inflow occlusion and after hepatectomy in 75 patients who underwent anatomical liver resection for hepatocellular carcinoma (HCC). Results Eight patients (11 per cent) suffered liver failure and one (1 per cent) died in hospital. An estimated remnant K value of 0·090 per min was the cut-off value for liver failure. In a logistic regression model, the estimated remnant K (0·090 per min; P = 0·022) and age (65 years; P = 0·025) were significant predictors of postoperative liver failure. There was a correlation between the estimated and measured post-hepatectomy K, and between the inflow occlusion K and measured post-hepatectomy K (P < 0·001). The cut-off value of less than 0·090 per min for the estimated remnant K resulted in 88 per cent sensitivity and 82 per cent specificity for predicting liver failure. Conclusion Perioperative real-time monitoring of ICG-K is useful for evaluating the remnant liver functional reserve before, during and after liver resection for HCC. The estimated remnant K is a significant predictor of liver failure.

Funder

Harnasou Foundation Fund subsidizing Cancer Research

Kanetsu Chuo Hospital Research Fund

Research Fund of the Uchida Clinic in Inamachi, Saitama

Publisher

Oxford University Press (OUP)

Subject

Surgery

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