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Table 2 Operative characteristics of the two RFA

From: The short-term efficacy of no-touch radiofrequency ablation in treating cirrhosis-based small hepatocellular carcinoma

  NT-RFA (n = 46) C- RFA (n = 84) P value
Duration of ablation, min 8.2 (8.0–8.3) 8.7 (8.2–8.8) 0.044
Length of stay, daya 3.3 (3.0–3.7) 3.5 (3.2–3.7) 0.421
Ablation size, mm 45.5 (41.8–54.0) 41.0 (35.0–49.0) 0.002
RLV, mm3 1345.0 (1268.0–1444.0) 1359.0 (1263.0–1423.0) 0.702
More than one ablation 3 (6.5%) 11 (13.1%) 0.390
Ablation complicationsb 2 (4.8%) 10 (11.9%) 0.269***
 Ascites 2 (4.8%) 6 (7.1%)  
 Sepsis 0 (0) 2 (2.4%)  
 Active bleeding 0 (0) 2 (2.4%)  
Post-TBIlL(2 h), μmol/L 24.2 (20.8–34.4) 26.6 (18.3–35.2) 0.862
Local recurrence 1 (2.2%) 13 (15.5%) 0.042***
Distant recurrence 4 (8.7%) 8 (9.5%) 0.872
  1. aThe time before RFA was not included for comparison
  2. bAccording to the society of interventional radiology classification
  3. ***Fisher’s exact test
  4. RFA radio frequency ablation, RLV remaining liver volume, TBIL total bilirubin
  5. Ablation size was evaluated by ultrasonography after RFA
  6. RLV=SLV-ablation volume, ablation volume was calculated based on the formula of sphere volume