Table 1. Overall survival of patients with pulmonary metastasis treated with versus without pulmonary metastasectomy since 2008.

First author	Publication year	Pulmonary metastasectomy	N	Overall survival	P
Wintera (10)	2008	(+)	67	20.9% (5 years)	<0.001
		(−)	67	6.0% (5 years)
Miyazaki (19)	2013	(+)	24	90.0% (1 year)	0.01
		(−)	45	35.0% (1 year)

^a, patients with versus without pulmonary metastasectomy were compared using matched pair analysis.