Journal
BRITISH JOURNAL OF SURGERY
Volume 105, Issue 9, Pages 1200-1209Publisher
WILEY
DOI: 10.1002/bjs.10822
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Funding
- National Institutes of Health/National Cancer Institute [P30CA016672]
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BackgroundAlthough perihepatic lymph node metastases (PLNMs) are known to be a poor prognosticator for patients with colorectal liver metastases (CRLMs), optimal management remains unclear. This study aimed to determine the risk factors for PLNMs, and the survival impact of their number and location in patients with resectable CRLMs. MethodsData on patients with CRLM who underwent hepatectomy during 2003-2014 were analysed retrospectively. Recurrence-free (RFS) and overall (OS) survival were calculated according to presence, number and location of PLNMs. Risk factors for PLNM were evaluated by logistic regression analysis. ResultsOf 1485 patients, 174 underwent lymphadenectomy, and 54 (310 per cent) had PLNM. Ten patients (57 per cent) who had lymphadenectomy and 176 (134 per cent) who did not underwent repeat hepatectomy. Survival of patients with PLNM was significantly poorer than that of patients without (RFS: 53 versus 138 months, P < 0001; OS: 205 versus 713 months; P < 0001). Median OS was significantly better in patients with para-aortic versus hepatoduodenal ligament PLNMs (582 versus 155 months; P = 0011). Patients with three or more PLNMs had significantly worse median OS than those with one or two (163 versus 254 months; P = 0039). The presence of primary tumour lymph node metastases (odds ratio 235; P = 0037) and intrahepatic recurrence requiring repeat hepatectomy (odds ratio 561; P = 0012) were significant risk factors for PLNM on multivariable analysis. ConclusionPatients undergoing repeat hepatectomy and those with primary tumour lymph node metastases are at significant risk of PLNM. Although PLNM is a poor prognostic factor independent of perihepatic lymph node station, patients with one or two PLNMs have a more favourable outcome than those with more PLNMs.
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