Abstract:Abstract: Objective?To investigate the clinical efficacy of endoscopic retrograde appendicitis therapy (ERAT) in treatment of acute non-complex appendicitis and its effect on serum inflammatory factors.?Methods?40 patients with acute non-complex appendicitis from January 2017 to September 2018 were selected as the study subjects. They were divided into study group (n?=?20) and control group (n?=?20) according to the patients’ choice of treatment. ERAT was used in the study group, while laparoscopic appendectomy (LA) was used in the control group. The outcomes and complications of the two groups were compared. The changes in serum levels of inflammatory factors, such as interleukin 6 (IL-6), procalcitonin (PCT), alpha-tumor necrosis factor (TNF-α), and C-reactive protein (CRP) were compared between the two groups before and after operation.?Results?The time of getting off of bed activity, days of hospitalization, time of operation and time of temperature recovery in the study group were significantly shorter than those in the control group (P?0.05); The incidence of complications such as gastrointestinal bleeding, incision infection, abdominal abscess and intestinal obstruction in study group were significantly lower than those in the control group (P?0.05); The indexes of IL-6, PCT, TNF-α, CRP in the two groups after operation were significantly higher than that before operation (P?0.05). The levels of IL-6, PCT, TNF-α and CRP in study group were significantly lower than those in control group (P?0.05).?Conclusion?ERAT is safe and effective in treatment of acute non-complex appendicitis with good curative effect. It is beneficial to reduce the incidence of complications, protect the integrity of appendix structure, reduce the level of serum inflammatory factors, reduce the injury to the appendix, shorten the hospitalization time, promote the recovery of patients and improve the quality of life. It is worth further promotion.