Perioperative and follow-up data:
All perioperative parameters including weight of removed tissue, enucleation and morcellation time, enucleation and morcellation efficiency, decrease in the hemoglobin level (one day before and 12 hours after surgery), duration of hospitalization and catheterization were all assessed and noted. Postoperative control was performed by evaluating objective parameters (Q max, PVR, PSA reduction) and validated symptom questionnaires, such as the IPSS and QoL index during 3 months visit following catheter removal.