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. 2022 Feb;36(2):1018-1026.
doi: 10.1007/s00464-021-08366-5. Epub 2021 Mar 8.

One-stage laparoscopic parenchymal sparing liver resection for bilobar colorectal liver metastases: safety, recurrence patterns and oncologic outcomes

Mathieu D'Hondt  1 , Zoë Pironet  2 , Isabelle Parmentier  3 , Celine De Meyere  2 , Marc Besselink  4 , Hans Pottel  5 , Franky Vansteenkiste  2 , Chris Verslype  6
Affiliations

One-stage laparoscopic parenchymal sparing liver resection for bilobar colorectal liver metastases: safety, recurrence patterns and oncologic outcomes

Mathieu D'Hondt et al. Surg Endosc. 2022 Feb.

Abstract

Background and purpose: Laparoscopic liver resections (LLR) of bilobar colorectal liver metastases (CRLM) are challenging and the safety and long-term outcomes are unclear. In this study, the short- and long-term outcomes and recurrence patterns of one-stage LLR for bilobar CRLM were compared to single laparoscopic resection for CRLM.

Methods: This single-center study consisted of all patients who underwent a parenchymal sparing LLR for CRLM between October 2011 and December 2018. Demographics, perioperative outcomes, short-term outcomes, oncologic outcomes and recurrence patterns were compared. Data were retrieved from a prospectively maintained database.

Results: Thirty six patients underwent a LLR for bilobar CRLM and ninety patients underwent a single LLR. Demographics were similar among groups. More patients received neoadjuvant chemotherapy in the bilobar group (55.6% vs 34.4%, P = 0.03). There was no difference in conversion rate, R0 resection and transfusion rate. Blood loss and operative time were higher in the bilobar group (250 ml (IQR 150-450) vs 100 ml (IQR 50-250), P < 0.001 and 200 min (IQR 170-230) vs 130 min (IQR 100-165), P < 0.001) and hospital stay was longer (5 days (IQR 4-7) vs 4 days (IQR 3-6), P = 0.015). The bilobar group had more technically major resections (88.9% vs 56.7%, P < 0.001). Mortality was nil in both groups and major morbidity was similar (2.8% vs 3.3%, P = 1.0). There was no difference in recurrence pattern. Overall survival (OS) was similar (1 yr: 96% in both groups and 5 yr 76% vs 66%, P = 0.49), as was recurrence-free survival (RFS) (1 yr: 64% vs 73%, 3 yr: 38 vs 42%, 5 yr: 38% vs 28%, P = 0.62).

Conclusion: In experienced hands, LLR for bilobar CRLM can be performed safely with similar oncologic outcomes as patients who underwent a single LLR for CRLM.

Keywords: Bilobar; Colorectal liver metastases; Laparoscopic liver resection; Parenchymal sparing hepatectomy.

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