Background: To externally validate the relationship of R.E.N.A.L nephrometryscore to perioperative outcomes following partial nephrectomyMethods: We retrospectively reviewed our institutions database for anypatient undergoing a partial nephrectomy from January 2011 to January2012. R.E.N.A.L nephrometry score was compared with different pathologicfeatures of these tumours.Results: A total of 79 patients underwent partial nephrectomy and hadimaging studies available. Higher R.E.N.A.L score was associated withincreased blood loss (p0.001), increased hospital stay (p0.001), increasedpreoperative (p=0.035) and pathologic tumour size (p0.001) and increasedrisk of complications (p=0.015). However, there were no significant differenceswith respect to demographic characteristics, type of procedure andrenal ischemia time (Table 1).Conclusions: Increasing R.E.N.A.L score is associated with increased bloodloss, hospital stay and complications.
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