Operative Time Is Independently Associated With Morbidity in Pediatric Complicated Appendicitis.

Introduction: Complicated appendicitis is a common cause of morbidity in children. Studies have analyzed the risk factors in the surgical treatment of this pathology, including obesity and disease severity, but not operative time (OT). We hypothesize that OT is independently associated with increased morbidity for children with complicated appendicitis.

Methods: Data were extracted from the 2018 and 2019 National Surgical Quality Improvement Program-Pediatrics data sets. Patients aged 2-18 y who underwent laparoscopic appendectomy for complicated appendicitis were identified. Patient demographics, disease severity, and operative details were evaluated. Surgical site infections (SSIs), hospital length of stay (LOS), ≤30-d readmissions and reoperations, interventional radiologic drain (IR-drain) placement, pneumonia, and death were analyzed. Logistic and linear regression analyses were performed.

Results: A total of 8168 patients were analyzed, with a mean age of 9.96 ± 3.9 y and a mean weight of 41.2 ± 21.2 kg. The mean OT was 55.8 ± 24.9 min, with a mean LOS of 5.15 ± 3.37 d. For every 1-min increase in OT, there was an independently associated increase in the likelihood of any SSI (odds ratio [OR] = 1.01; 95% confidence interval [CI] 1.008-1.013), superficial SSI (OR = 1.01; 95% CI 1.004-1.020), organ-space SSI (OR = 1.01; 95% CI 1.008-1.013), IR-drain placement (OR = 1.01; 95% CI 1.008-1.013), and readmission (OR = 1.004; 95% CI 1.000-1.007).

Conclusions: Prolonged OT is independently associated with greater likelihood of any SSI, superficial SSI, organ-space SSI, IR-drain placement, readmission and reoperation within 30 d, and longer hospital LOS. There is a need to determine modifiable factors that prolong OT to aid in the optimization of routine operations to reduce patient morbidity.