Analysis of the efficacy of microwave ablation in the treatment of early hepatic alveolar echinococcosis: a propensity score matching based study.

BACKGROUND: To explore the efficacy of microwave ablation (MWA) in the treatment of hepatic alveolar echinococcosis (HAE) with a diameter of ≤5 cm.

METHOD: From June 2014 to January 2020, patients diagnosed with HAE were retrospectively analyzed. After balancing the confounding factors by propensity score matching (PSM) , the patients were divided into MWA group (n = 20) and radical operation group (n = 20) by 1:1 matching. The safety and effectiveness of MWA were assessed by comparing the differences between the two groups in terms of postoperative general laboratory indices, grading of postoperative complications, length of postoperative hospitalization, the outcome of treatment, and disease recurrence.

RESULT: After PSM, all confounders were not statistically different (P>0.05) . Compared with the radical surgery group, patients in the MWA group had lower postoperative ALT and WBC elevations (P<0.001) , shorter postoperative hospital stay (P<0.001) ) , lower hospital costs (P<0.001) . The effective rate of the two groups was 100%. There was no statistical difference in the incidence of postoperative complications and recurrence rate (P>0.05) .

CONCLUSION: MWA is a safe and effective means of treating HAE ≤ 5 cm in diameter.