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Salvage treatment for recurrences after first resection of colorectal liver metastases: the impact of histopathological growth patterns.

Abstract：

:The majority of patients recur after resection of colorectal liver metastases (CRLM). Patients with CRLM displaying a desmoplastic histopathological growth pattern (dHGP) have a better prognosis and lower probability of recurrence than patients with non-dHGP CRLM. The current study evaluates the impact of HGP type on the pattern and treatment of recurrences after first resection of CRLM. A retrospective cohort study was performed, including patients with known HGP type after complete resection of CRLM. All patients were treated between 2000 and 2015. The HGP was determined on the CRLM resected at first partial hepatectomy. The prognostic value of HGPs, in terms of survival outcome, in the current patient cohort were previously published. In total 690 patients were included, of which 492 (71%) developed recurrent disease. CRLM displaying dHGP were observed in 103 patients (21%). Amongst patients with dHGP CRLM diagnosed with recurrent disease, more liver-limited recurrences were seen (43% vs. 31%, p = 0.030), whereas patients with non-dHGP more often recurred at multiple locations (34% vs. 19%, p = 0.005). Patients with dHGP CRLM were more likely to undergo curatively intended local treatment for recurrent disease (adjusted odds ratio: 2.37; 95% confidence interval (CI) [1.46-3.84]; p < 0.001) compared to patients with non-dHGP. The present study demonstrates that liver-limited disease recurrence after complete resection of CRLM is more often seen in patients with dHGP, whereas patients with non-dHGP more frequently experience multi-organ recurrence. Recurrences in patients with dHGP at first CRLM resection are more likely to be salvageable by local treatment modalities, but no prognostic impact of HGPs after salvage therapy for recurrent disease was found.

journal_name

Clin Exp Metastasis

journal_title

Clinical & experimental metastasis

authors

Nierop PMH,Galjart B,Höppener DJ,van der Stok EP,Coebergh van den Braak RRJ,Vermeulen PB,Grünhagen DJ,Verhoef C

doi

10.1007/s10585-019-09960-7

subject

Has Abstract

pub_date

2019-04-01 00:00:00

pages

109-118

issue

eissn

0262-0898

issn

1573-7276

pii

10.1007/s10585-019-09960-7

journal_volume

pub_type

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Salvage treatment for recurrences after first resection of colorectal liver metastases: the impact of histopathological growth patterns.