Ultrasound‐guided aspiration in addition to antibiotics for treatment of liver abscess in children: A randomized controlled trial

Abstract

AbstractBackground and AimThe criteria for aspiration for pediatric liver abscess are unclear. In this randomized controlled trial, we evaluated the efficacy of ultrasound‐guided needle aspiration in addition to antibiotics in children with uncomplicated liver abscess.MethodsWe enrolled 110 children aged 1–18 years (mean [SD] = 7.7 [3.7] years) with uncomplicated liver abscess. The primary outcome was clinical cure at 6 weeks (absence of fever and abdominal pain in the preceding 14 days with reduction in abscess size on ultrasonography). The secondary outcomes were clinical response at 4 weeks, fever resolution time, time to abdominal pain reduction and abdominal tenderness, duration of hospitalization, and treatment failure.ResultsClinical cure at 6 weeks was not significantly different (48/50 [96%] vs 39/46 [85%]; P = 0.082) between aspiration plus antibiotics group and antibiotics only group. The clinical response at 4 weeks was also comparable (49/50 [98%] vs 43/46 [93.5%]; P = 0.347). The mean (SD) of fever resolution time was significantly less in the aspiration plus antibiotics group (198 [90.8] h vs 248.2 [104.6] h; P = 0.014). Time to achieve reduction in abdominal pain (8.32 [3.1] vs 9.46 [3.1] days; P = 0.077) and abdominal tenderness (5.7 [2.4] vs 6.3 [2.3] days; P = 0.242), duration of hospitalization (16.6 [3.9] vs 18.2 [4.4] days; P = 0.07), and adverse event profile (9/50 [18%] vs 14/46 [30%]; P = 0.217) were comparable between the two groups.ConclusionMajority of children with uncomplicated liver abscess achieved clinical cure at 6 weeks with intravenous antibiotics, irrespective of aspiration. However, needle aspiration may slightly reduce the duration of fever and abdominal pain/abdominal tenderness.