The natural history of large renal masses followed on observation.

ABSTRACT:

Purpose

The safety and feasibility of active surveillance in comorbid patients with renal masses ≥4.0cm is uncertain. The aim of this study is to describe our institutional experience with the observation of large renal masses.

Materials and methods

One hundred patients were identified with renal masses ≥ 4.0cm that were followed on observation for at least 6 months without surgical intervention between 1994 and 2016. Linear regression was conducted to determine predictors for renal mass growth and competing risk methods were used to estimate the probability of progression in the setting of death from other causes.

Results

Median age at diagnosis was 73 years and 73% of patients had a Charlson Comorbidity index ≥ 4. At presentation, the median mass size was 4.9cm. The

SUBMITTER: Marzouk K 

PROVIDER: S-EPMC6701866 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature