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The role of augmented reality by ICG immunofluorescence in pure laparoscopic hepatectomy for HCC and cirrhosis.- A propensity score analysis

Tan To Cheung. The University of Hong Kong

Introduction: In laparoscopic hepatectomy, the surgeon cannot use their hand to palpate the liver lesion and estimate margin of resection. The use of ICG immunofluorescence technique can show up the liver tumour and has the potential to facilitate a throughout assessment during the operation.

Method: Between 2013 and 2016, there was 162 patients undergone pure laparoscopic liver resection for HCC in our hospital. 142 patients had undergone surgery by conventional laparoscopic approach. 20 patients had laparoscopic hepatectomy with additional ICG immunofluorescence augmented technique.

The surgical outcome were compared with propensity score analysis in a ratio of 1:3.

Result: 20 patients had ICG immunofluorescence assisted laparoscopic hepatectomy (Group 1). 60 patients using conventional laparoscopic liver resection with propensity matched were selected for comparison. (Group 2). The median operation time was 200 minutes vs 164 minutes p=0.679, the median blood loss was 125ml vs 100ml (p=0.928) respectively. 3 additional tumours were identified by ICG technique. 3 patients had suspicious lesion picked up by ICG technique but proven to be benign pathology on frozen section examination. The sensitivity of tumour detection by group 1 were 90%.

100% R0 resection were achieved in Group 1 and Group 2 respectively.

the hospital stay was 5 days vs 4 days (p=0.824) and the post-operative complication was 0(0%) vs 5(8.3%) (p=0.424) respectively.

None of the patient developed ICG related complication.

Conclusion: In current study, the new technique showed equally good short term outcome when compared with conventional laparoscopic hepatectomy. ICG immunofluorescence augmented reality is a promising technique that might facilitate easier identification tumour during laparoscopic hepatectomy.


Presented at the SAGES 2017 Annual Meeting in Houston, TX.

Abstract ID: 80120

Program Number: P459

Presentation Session: Poster (Non CME)

Presentation Type: Poster

43

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