Percutaneous Cryoablation of Metastatic Lesions from Colorectal Cancer: Efficacy and Feasibility with Survival and Cost-Effectiveness Observations

Table 3

Local tumor recurrence. Total procedural and satellite recurrences broken down by anatomical location of the tumor. Of the 4 observed procedural recurrences, 3 occurred in a single patient on one tumor abutting the hilum. Following additional ablations, a total of 7 (4.6%) recurrences remained, all of which were satellite. Therefore, the overall ablation effectiveness in was 95%.

Location	Number of tumors	Total local recurrences	Procedural (%)	Satellite (%)
Liver	116	11	0%	100%
Lung	33	6	67%	33%
Soft tissue
Retroperitoneal	2	0
Intraperitoneal	2	1	0%	100%
Bone	6	0
Superficial	2	0
Total*	151*	18	4	14
Total%		12%	3%	9%
Total (following reablation)		7	0	7
Total% (following reablation)		5%	0%	5%

∗Tumor values overlap in the case of repeat ablations. Actual number of distinct tumors is 151.