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 25 November 2017

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News

Clinical trial: Comparing hepatocellular cancer treatments

Radiofrequency thermal ablation is superior to percutaneous ethanol injection and percutaneous acetic acid injection with respect to local recurrence, overall survival, and cancer free survival rates, reports the latest issue of Gut.

News image

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Dr Lin and colleagues from Taiwan compared the outcomes of radiofrequency thermal ablation, percutaneous ethanol injection, and percutaneous acetic acid injection in the treatment of hepatocellular carcinoma.

The investigators randomly assigned a total of 187 patients with hepatocellular carcinoma of 3 cm or less to 3 treatment groups.

The team randomized 62 patients radiofrequency thermal ablation, 62 to percutaneous ethanol injection, or 63 to percutaneous acetic acid injection.

The investigators assessed tumor recurrence and survival rates.

The team found that 1, 2, and 3 year local recurrence rates were 10%, 14%, and 14% in the radiofrequency thermal ablation group.

The 1, 2, and 3 year local recurrence rates were 16%, 34%, and 34% in the percutaneous ethanol injection group.

The 1 year survival rate in the radiofrequency thermal ablation group was 93%
Gut

The team also found that the 1, 2, and 3 year local recurrence rates were 14%, 31%, and 31% in the percutaneous acetic acid injection group.

The 1, 2, and 3 year survival rates were 93%, 81%, and 74% in the radiofrequency thermal ablation group.

For the percutaneous ethanol injection group, the 1, 2, and 3 year survival rates were 88%, 66%, and 51%.

The investigators also noted that the 1, 2, and 3 year survival rates were 90%, 67%, and 53% in the percutaneous acetic acid injection groups.

For the 1, 2, and 3 year cancer free survival rates, the team noted rates of 74%, 60%, and 43% in the radiofrequency thermal ablation group.

In the percutaneous ethanol injection group, the 1, 2, and 3 year cancer free survival rates were 70%, 41%, and 21%.

The team noted that 1, 2, and 3 year cancer survival rates were 71%, 43%, and 23% in the percutaneous acetic acid injection group.

Tumor size, tumor differentiation, and treatment methods were significant factors for local recurrence, overall survival, and cancer free survival.

The team reported that major complications occurred in 5% of patients, where 2 had haemothorax, 1 with gastric perforation in the radiofrequency thermal ablation group

No complications were observed in the 2 other groups.

Dr Lin's team concluded, “Radiofrequency thermal ablation was superior to percutaneous ethanol injection and percutaneous acetic acid injection with respect to local recurrence, overall survival, and cancer free survival rates, but radiofrequency thermal ablation also caused more major complications.”

Gut 2005: 54: 1151-6
18 July 2005

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