Table 1. Features of surgical procedures with calculated surgical sensitivity (SS) and hospital stay.

Procedures	t (months from the first surgery)	m1 (number of metastases revealed by CT)	m2 (number of metastases removed surgically)	*SS	Type of resection	Side	Days of hospital stay
I	0	36	31	86.1%	E**	R	6
II	3	37	36	97.2%	E	L	6
III	15	5	2	40%	E	L	5
IV	24	10	11	110%; mean: 97.7%	E + W§	R	6
V	26	2	2	100%	E + W	L	5
VI	35	2	2	100%	W	L	4
VII	41	2	3	150%	E	R	4

In some cases it is difficult to find a small lesion in the depth of the parenchyma, or even on the surface of an already operated and scarry lung. In order to verify surgical sensitivity, the number of lesions appearing on CT slides and the number of lesions found and removed during the metastasectomies were compared. During the 7 metastasectomies, our surgical sensitivity ranged between 40% and 150% (mean: 95%). Taking those procedures into consideration, in which the number of diagnosed/removed nodules were more than 10 (in procedures: I, II and IV), mean SS showed to be: 97.7%. *, SS, rate of surgically removed and CT diagnosed metastases regarding the same surgery; **, enucleation (cautery resection); ^§, wedge resection. SS, surgical sensitivity; L, left; R, right.