Table 4.

Studies reporting long-term survival outcomes of patients with early-stage hepatocellular carcinoma who underwent percutaneous radiofrequency ablation

Author and year		No. patients	Survival rates (%)
			1 year	3 years	5 years
Lencioni et al., 200539	Child A, 1 HCC <5 cm or 3 <3 cm	144	100	76	51
	1 HCC <5 cm	116	100	89	61
	Child B, 1 HCC <5 cm or 3 <3 cm	43	89	46	31
Tateishi et al., 200540	Naive patientsa	319	95	78	54
	Non-naive patientsb	345	92	62	38
Cabassa et al., 200641		59	94	65	43
Choi et al., 200742	Child A, 1 HCC <5 cm or 3 <3 cm	359	NA	78	64
	Child B, 1 HCC <5 cm or 3 <3 cm	160	NA	49	38

HCC, hepatocellular carcinoma.

^aPatients who received radiofrequency ablation as primary treatment.

^bPatients who received radiofrequency ablation for recurrent tumour after previous treatment including resection, ethanol injection, microwave ablation, and transarterial embolization.