TY - JOUR TI - Single lower calyceal percutaneous tract combined with flexible nephroscopy: A valuable treatment paradigm for staghorn stones AU - Sfoungaristos, S. AU - Mykoniatis, I. AU - Katafigiotis, I. AU - Isid, A. AU - Gofrit, O.N. AU - Constantinides, C.A. AU - Duvdevani, M. JO - Canadian Urological Association Journal PY - 2018 VL - 12 TODO - 1 SP - E21-E24 PB - Canadian Urological Association Central Office SN - 1911-6470 TODO - 10.5489/cuaj.4393 TODO - antibiotic agent; opiate, adult; Article; blood transfusion; cohort analysis; computer assisted tomography; disease free survival; endoscopy; female; fever; fluoroscopy; human; kidney calyx; length of stay; major clinical study; male; medical decision making; medical record review; middle aged; nephroscopy; operation duration; patient safety; percutaneous nephrolithotomy; postoperative complication; postoperative hemorrhage; postoperative pain; postoperative period; postoperative thrombosis; retrospective study; staghorn stone; treatment outcome; ureteral stenting; urine incontinence TODO - Introduction: We evaluated the efficacy and safety of single lower calyceal tract combined with flexible nephroscopy for the management of staghorn renal stones by percutaneous nephrolithotomy. Methods: The medical records of patients who underwent percutaneous nephrolithotomy for the management of staghorn stones were analyzed. We included patients aged >18 years, while patients with incomplete data and renal anatomical anomalies were excluded from the study. Stone-free rate, postoperative complications, procedure duration, fluoroscopy time, and length of hospitalization were recorded. Postoperative outcomes were evaluated by non-contrast computed tomography scan 4-6 weeks after the operation. Stonefree status was defined as the absence of residual stones >4 mm. Results: The study cohort consisted of 103 consecutive patients. Stonefree rate was 65.0%. No complications were observed in 69.9% of the cases; most postoperative complications were Grade 1 (13.6%) and 2 (10.7%). Five patients (4.9%) suffered a Grade 3a complication and another patient (1.0%) suffered a Grade 3b complication. Conclusions: Percutaneous nephrolithotomy through a single lower calyceal tract combined with flexible nephroscopy can be a valuable treatment option for the treatment of staghorn calculi, providing efficacy and safety. Nevertheless, the present study is limited by both its retrospective nature and being conducted at a single centre and, thus, proper prospective studies with head-on comparisons are needed to prove or disprove the advantages and disadvantages of either approach. © 2018 Canadian Urological Association. ER -