Morphometric characterization of kidney tumors.

PURPOSE OF REVIEW

Recently, several measurement systems have been proposed that allow for objective assessment of kidney tumor location. These include the R.E.N.A.L., P.A.D.U.A, and C-index kidney nephrometry scoring systems. Here, we review these systems in terms of their utility in surgical planning, outcomes prediction, and academic reporting.

RECENT FINDINGS

Nephrometry scoring systems allow for methodological and standardized analysis of kidney tumor location. The P.A.D.U.A. and C-index systems have been shown to associate with complication rates after partial nephrectomy. The C-index system has been shown to associate with renal functional outcomes after laparoscopic partial nephrectomy. Several studies are ongoing to assess the clinical utility of these nephrometry scoring systems.

SUMMARY

Nephrometry scoring systems are promising new tools that can guide surgical decision-making in nephron-sparing surgery. Preliminary data support that the systems allow for improved academic reporting, complications risk assessment, and functional outcomes prediction.