About this trial
The goal of this observational study is to learn about the benefit of using RetroPerc® in obtaining renal access for percutaneous nephrolithotomy. The device is already used in routine clinical practice by urologists around the country.
Participants who are already scheduled to undergo percutaneous nephrolithotomy as part of their regular care will be asked to participate.
Eligibility criteria
Qualifiers
Renal stone or total linear sum of 1.5-3cm cm in maximum dimension (largest diameter in axial or coronal)--- multiple stones should be summed to determine stone size.
Age >=18 years of age
Gender: both men and women included.
Ethnic background: all ethnicities will be included in the study population and the specific ethnic diversity present in the study population will reflect the geographic distributions of the participating institutions.
Disqualifiers
Active pregnancy
BMI >45
Severe Hydronephrosis - renal pelvis diameter > 20mm
Flank window < 4 cm are ineligible for puncture
Trial design
Treatments tested in this trial
- RetroPerc®
Treatment groups
Sponsors and collaborators
University of Kansas Medical Center
Lead sponsor
RetroPerc Inc
Collaborator