Pierre S - The tubeless PNL group was found to have a smaller decrease in hematocrit, decreased hospital stay, decreased pain scores, and decreased narcotic analgesia use. The standard PNL group was found to have shorter OR increased mean percutaneous access tracts. Stone free-rate for the two approaches was 90%, using a definition of clinically insignificant residual fragments on computed tomography of the abdomen and pelvis performed 1 month post-procedure.
