The effect of the broad-spectrum antibiotics for prevention of postoperative intra-abdominal abscess in pediatric acute appendicitis

Abstract

We investigated the efficacy of broad-spectrum antibiotics for prevention of postoperative intra-abdominal abscess in pediatric acute appendicitis with our 3 risk factors:-WBC > 16.5 (× 103/µl), CRP > 3.1 (mg/dl) and appendix maximum short diameter on diagnostic imaging > 11.4mm. Four hundred twenty-two patients were reviewed. Patients with 0-1 risk factors were assessed as low-risk and those with 2-3 were high-risk. In the low-risk group, Group A (n = 66) patients received broad-spectrum antibiotics and Group B patients (n = 265) received narrow-spectrum monotherapy. In the high-risk group, Group C patients (n = 63) received broad-spectrum antibiotics and Group D patients (n = 28), narrow-spectrum antibiotics. The outcomes were the incidence of postoperative abscess and the total duration of intravenous (IV) antibiotics. The incidence of intra-abdominal abscess was 6.06% in Group A versus 1.89% in Group B (p = 0.08), and 19.05% in Group C versus 3.57% in Group D (p = 0.06). Total IV antibiotic duration (days) were 6.12 ± 2.87 in Group A versus 3.83 ± 0.69 in Group B (p < 0.01), and 7.84 ± 4.57 in Group C versus 4.00 ± 0.82 in Group D (p < 0.01). Broad-spectrum antibiotics did not prevent postoperative intra-abdominal abscess in either low or high-risk groups.