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

Table 2

Procedure complications. Complication rates per procedure broken down into their respective anatomical locations.

Location	Number of procedures	Grades; 1 and 2	Grade; 3	Grade; 4	Grade; 5	Number of complications ≥ grade 3
Liver	80	27	4	3	1	8
Lung	21	7	1			1
Soft tissue
Retroperitoneal	2
Superficial	2
Intraperitoneal	2
Bone	5
Total*	111	34	5	3	1	9
Total (%)		31%	5%	3%	1%	8%

∗Percentage was calculated by using the total number of procedures as the denominator, with overlapped procedures accounted for. Actual procedure number was 111.