Safety of ultrasound-guided percutaneous injection of alcohol as a scolicidal agent for the treatment of liver hydatid cysts

Background: Hydatid disease is a health problem in the developing world. Percutaneous therapy with various scolicidal agents has been described; however, there is a paucity of literature on the use of absolute alcohol injection without reaspiration as a sole scolicidal agent. The study carried out in a tertiary hospital aimed to prospectively evaluate the safety and outcomes of ultrasound-guided percutaneous injection of alcohol for liver hydatid cyst. Methodology: Consecutive patients with liver hydatid cysts were evaluated with ultrasound, classified according to the WHO classification between June 2012 and January 2020. Eligible patients underwent ultrasound-guided percutaneous therapy after three courses of oral albendazole. Patients having elevated cyst fluid bilirubin levels were excluded. Patients who underwent percutaneous alcohol injection were followed up clinically and with imaging. Data were entered in Microsoft Excel spreadsheet and analyzed. Results: Fifty-two consecutive patients with hydatid cyst were evaluated during the study. Among these, 27 patients underwent percutaneous alcohol injection. Follow-up data were available for 25 patients. There was a favorable imaging outcome in 21/25 (84%). One patient developed anaphylaxis during cyst access, which was managed medically with an uneventful recovery. No instances of cholangitis or sepsis following injection were observed. Conclusion: Percutaneous alcohol injection therapy for liver hydatid cysts is a minimally invasive, safe, and an effective procedure in selected group of patients.