***TASK***
the task is to simplify the input abstract of a biomedical literature

***INPUT***
the input is the abstract of a biomedical literature

***OUTPUT***
the output is the simplified abstract for the input abstract of a biomedical literature

***DOCUMENTATION***

***EXAMPLES***

Input: Three randomised controlled trials (633 participants) were included in this updated review. No significant differences in hospital mortality were noted between the study group (with omentoplasty) and the control group (without omentoplasty) (RR 1.28, 95% CI 0.49 to 3.39). None of the included studies reported differences in long-term survival between the two groups. The incidence of postoperative anastomotic leakage was significantly less among study participants treated with omentoplasty than among those treated without (RR 0.25, 95% CI 0.11 to 0.55), but the additional benefit was seen in the subgroup analysis only for participants undergoing a transhiatal oesophagogastrectomy (THE) procedure (RR 0.23, 95% CI 0.07 to 0.79); transthoracic oesophagogastrectomy (TTE) (RR 0.19, 95% CI 0.03 to 1.03); or three-field oesophagectomy (RR 0.33, 95% CI 0.09 to 1.19 ). Omentoplasty did not significantly improve other surgery-related complications, such as anastomotic stricture (RR 0.91, 95% CI 0.33 to 2.57). However, participants treated with omentoplasty could reduce the duration of hospitalisation compared with that seen in the control group (MD -2.13, 95% CI -3.57 to -0.69). Omentoplasty may provide additional benefit in decreasing the incidence of anastomotic leakage after oesophagectomy and oesophagogastrostomy for patients with oesophageal cancer without increasing or decreasing other complications, especially among those treated with THE. It also has the potential to reduce the duration of hospital stay after operation. Further randomised controlled trials are needed to investigate the influences of omentoplasty on the incidence of anastomotic leakage and anastomotic stricture, long-term survival, duration of hospital stay and quality of life after oesophagectomy and oesophagogastrostomy when different surgical approaches are used.
Output:

This updated systematic review, including 633 participants in three randomised controlled trials, suggests that omentoplasty could reduce the incidence of anastomotic leakage and the duration of hospital stay after operation. Although the difference in anastomotic leakage was significant only among patients undergoing THE, the risk ratios of omentoplasty for THE and TTE were similar. In addition, omentoplasty does not appear to increase or decrease hospital mortality nor the incidence of postoperative complications, such as anastomotic stricture, pulmonary and cardiac complications, infection, vocal cord palsy and perijejunostomy leakage. Additional clinical trials are needed to investigate the influences of omentoplasty on the incidence of anastomotic leakage and anastomotic stricture, long-term survival, duration of hospital stay and quality of life after oesophagectomy and oesophagogastrostomy when different surgical approaches are used.