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. 2017 May 12;31(9):1253–1258. doi: 10.1038/eye.2017.75

Table 3. Intraoperative parameters in a trial of ranibizumab in diabetic vitrectomy.

  Control Ranibizumab  
Surgeon-determined complexity score 0 (simple)–8 (highly complex) (median score) 4 5  
Duration of vitrectomy (min), median (interquartile range) 51 (38-82) 63 (42-87) P=0.53, Wilcoxon rank-sum test
Intraoperative bleeding score (median score) 0 (none)–3 (severe) 2 2  
Endodiathermy applications (mean) 1.5 1.1  
Back-flush cannula applications (mean) 2.8 2.5  
Number of iatrogenic retinal breaks (total) 15 12  
Tamponnade agent (number of participants)      
 None 3 (20%) 3 (20%)  
 Sulphur hexafluoride 11 (73%) 9 (60%)  
 Perfluoropropane 1 (7%) 1 (7%)  
 Silicone oil 0 (0%) 2 (13%)  
Overall surgical difficulty score (median score), scale 0 (simple)–4 (very difficult) 3 2  
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