***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: We included two RCTs (with a total of 789 participants) comparing LMWH with 5-FU infusion and placebo. However, we did not perform a meta-analysis because of significant heterogeneity between these studies. One study found a significant beneficial effect of LMWH with 5-FU in reducing postoperative PVR compared to placebo (RR: 0.48, 95% confidence interval: 0.25 to 0.92), in 174 patients who were viewed at high-risk of developing postoperative PVR. The other study included 615 unselected cases of rhegmatogenous retinal detachment and could not show a difference between LMWH with 5-FU infusion and placebo in reducing PVR rates (RR:1.45, 95% confidence interval: 0.76 to 2.76). Results from this review indicate that there is inconsistent evidence from two studies on patients at different risk of PVR on the effect of LMWH and 5-FU used during vitrectomy to prevent PVR. Future research should be conducted on high risk patients only, until a benefit is confirmed at least in this patient subgroup.
Output:

The two studies included in this review looked at using LMWH with 5-FU during retinal detachment repair to see if there was an effect of reducing PVR levels after surgery. One study focused on patients who are considered at high-risk of developing PVR after surgery because of pre-existing ocular features, and found beneficial effects of this treatment in this group. The other study looked at a wider group of patients and did not find a benefit in using this combination treatment, and in certain patients the treatment was associated with poorer vision. Due to the inconsistency of the evidence, until further data are available, future research on the use of LMWH with 5-FU should be conducted only in retinal detachment patients who are likely to develop considerable retinal scarring after surgery.