Abstract
Purpose: This study aims to investigate the safety and efficacy of percutaneous nephrolithotomy (PNL) in the elderly.
 Methods: The data of 238 patients who underwent PNL were retrospectively analyzed. The patients were divided into two groups (elderly: >65). Demographic data, stone characteristics, operation data, and complications were compared between the elderly and younger patients.
 Results: Eighty-six (36.1%) elderly patients were included in the study. There was no significant difference between the groups in terms of demographic characteristics, success, and complication rates (p>0.05). The overall stone-free rate was 86.0% in the elderly and 86.8% in young patients (p>0.05). In multivariable analysis; stone size (p=0.032, OR=0.202 and %95 CI=0.047-0.873) and number of stones (p=0.002, OR=0.067 and CI=0.012-0.377) were found to be associated with complications in elderly. 
 Conclusion: Percutaneous Nephrolithotomy can be performed safely with high success in elderly patients. It should be kept in mind that the risk of complications for PNL is increased in geriatric patients with a high number of stones and burden.
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