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Published in: Annals of Surgical Oncology 4/2007

01-04-2007

Long-Term Characteristics of 5-Year Survivors After Liver Resection for Colorectal Metastases

Authors: Kuniya Tanaka, MD, PhD, Hiroshi Shimada, MD, PhD, Michio Ueda, MD, Kenichi Matsuo, MD, Itaru Endo, MD, PhD, Shinji Togo, MD, PhD

Published in: Annals of Surgical Oncology | Issue 4/2007

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Abstract

Background

We investigated factors affecting 5-year survival in patients undergoing hepatic resection for colorectal cancer metastases, including events long after initial hepatectomy. Although retrospective studies have demonstrated survival benefit of hepatectomy for metastatic colorectal cancer, few have included sufficient 5-year survivors to identify survival-related factors throughout the clinical course.

Methods

We divided 156 patients with hepatectomy for colorectal cancer metastases into 5-year survivors (n = 64) and patients dying before 5 years after hepatectomy (n = 92). Clinicopathologic data were compared retrospectively with respect to long-term outcome.

Results

By multivariate analysis, large liver tumors (adjusted relative risk, 2.029; P = .011), short tumor doubling time (1.809; P = .026), and origin from poorly differentiated primary adenocarcinoma (12.632; P = .001) compromised survival, whereas initial treatment-related variables did not. Although no difference was seen in initial treatment-related variables between 5-year survivors with recurrence after hepatectomy and patients dying before 5 years, repeat surgery was used more frequently in survivors (P < .001), typically with adjuvant chemotherapy.

Conclusions

Reoperations for each recurrence of metastases, followed by additional chemotherapy, frequently resulted in long survival.
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Metadata
Title
Long-Term Characteristics of 5-Year Survivors After Liver Resection for Colorectal Metastases
Authors
Kuniya Tanaka, MD, PhD
Hiroshi Shimada, MD, PhD
Michio Ueda, MD
Kenichi Matsuo, MD
Itaru Endo, MD, PhD
Shinji Togo, MD, PhD
Publication date
01-04-2007
Publisher
Springer-Verlag
Published in
Annals of Surgical Oncology / Issue 4/2007
Print ISSN: 1068-9265
Electronic ISSN: 1534-4681
DOI
https://doi.org/10.1245/s10434-006-9071-3

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