This retrospective study aimed to compare the efficacy and safety of single-session OK-432 and multiple-session 99% ethanol sclerotherapy for symptomatic simple hepatic cysts.
We reviewed patients who received aspiration sclerotherapy with OK-432 (group A) or 99% ethanol (group B) for symptomatic simple hepatic cysts at Guangdong Provincial People's Hospital from January 2013 to November 2019.
We included 42 patients in group A and 39 patients in group B. No significant difference was found in the mean volume of hepatic cysts between the two groups. The overall success rates were 92.9% (39 of 42 patients) in group A and 79.5% (31 of 39 patients) in group B (
Single-session OK-432 sclerotherapy was safer and more effective than multiple-session 99% ethanol sclerotherapy for treating large cysts, although both treatments had similar effects on small cysts.