4.5 Article

Open liver resection for colorectal metastases: better short- and long-term outcomes in patients potentially suitable for laparoscopic liver resection

Journal

HPB
Volume 12, Issue 3, Pages 188-194

Publisher

ELSEVIER SCI LTD
DOI: 10.1111/j.1477-2574.2009.00143.x

Keywords

hepatectomy; metastatic colorectal cancer; laparoscopy; outcome

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Background: There is no prospective randomized data comparing laparoscopic to open hepatectomy. This study compared short-and long-term outcomes in patients undergoing hepatectomy for colorectal metastases (CRM), who were suitable for either laparoscopic or open surgery. Methods: Data were prospectively collected from consecutive patients undergoing hepatic resection of CRM at a single centre (1987-2007). Patients who were suitable for laparoscopic resection (Group 1) were compared with patients whose tumour characteristics would best be considered for open resection (Group 2). Results: Out of 1152 hepatectomies, 266 (23.1%) were deemed suitable for a laparoscopic approach. The median (IQR) number of metastases was greater in Group 2 [2(1-20) vs. 1(1-10), P < 0.001], as was the mean (SD) tumour size [5.3(3.6) cm vs. 3.3(1.2) cm, P < 0.001]. The median (IQR) operation time [210 (70) min vs. 240 (90) min, P < 0.001] and blood loss [270 (265) ml vs. 355 (320) ml, P < 0.001] were less in Group 1. There was no difference in length of stay, morbidity or mortality. Patients in Group 2 had a higher R1 resection rate (14.9%) compared with Group 1 (4.5%, P < 0.001) and lower 5-year survival (37.8% vs. 44.2%, P = 0.005). Discussion: Current criteria for laparoscopic hepatectomy selects patients who have more straightforward surgery, with less risk of an involved resection margin and better long-term survival, compared with patients unsuited to a laparoscopic approach. Clearly defined criteria for laparoscopic hepatectomy are essential to allow meaningful analysis of outcomes and the results of unrandomized series of laparoscopic hepatectomies must be interpreted with caution.

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