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19.01.2017 | Original Scientific Report | Ausgabe 6/2017

World Journal of Surgery 6/2017

Pulmonary Metastasis After Resection of Cholangiocarcinoma: Incidence, Resectability, and Survival

Zeitschrift:
World Journal of Surgery > Ausgabe 6/2017
Autoren:
Mihoko Yamada, Tomoki Ebata, Yukihiro Yokoyama, Tsuyoshi Igami, Gen Sugawara, Takashi Mizuno, Junpei Yamaguchi, Masato Nagino

Abstract

Background

There are few reports on pulmonary metastasis from cholangiocarcinoma; therefore, its incidence, resectability, and survival are unclear.

Methods

Patients who underwent surgical resection for cholangiocarcinoma, including intrahepatic, perihilar, and distal cholangiocarcinoma were retrospectively reviewed, and this study focused on patients with pulmonary metastasis.

Results

Between January 2003 and December 2014, 681 patients underwent surgical resection for cholangiocarcinoma. Of these, 407 patients experienced disease recurrence, including 46 (11.3%) who developed pulmonary metastasis. Of these 46 patients, 9 underwent resection for pulmonary metastasis; no resection was performed in the remaining 37 patients. R0 resection was achieved in all patients, and no complications related to pulmonary metastasectomy were observed. The median time to recurrence was significantly longer in the 9 patients who underwent surgery than in the 37 patients without surgery (2.5 vs 1.0 years, p < 0.010). Survival after surgery for primary cancer and survival after recurrence were significantly better in the former group than in the latter group (after primary cancer: 66.7 vs 0% at 5 years, p < 0.001; after recurrence: 40.0 vs 8.7% at 3 years, p = 0.003). Multivariate analysis identified the time to recurrence and resection for pulmonary metastasis as independent prognostic factors for survival after recurrence.

Conclusion

Resection for pulmonary metastasis originating from cholangiocarcinoma can be safely performed and confers survival benefits for select patients, especially those with a longer time to recurrence after initial surgery.

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