Extracorporal Shockwave Lithotripsy Versus Retrograde Intrarenal Surgery for the Treatment of Kidney Stones

TOP-Stone: Treatment of Patients With Small Kidney Stones - Randomized Head-to-head Trial Comparing Extracorporal Shockwave Lithotripsy With Retrograde Intrarenal Surgery

The purpose of this study is to compare two established modalities for the treatment of kidneystones: ESWL (extracorporal shockwave-lithotripsy) vs. URS (uretero-reno-scopy with stone-extraction). Comparison of the stone-free rates 3month postoperative.

• Trial with surgical intervention

Inclusion criteria: - kidneystones requiring treatment up to an maximal size of 15mm (singular or multiple kidneystones with at least one stone with min. 5mm of size)

• male and female patients between 18 and 99 years
• informed consent signed by patient after explanation of the both treatment-modalities

Exclusion criteria: - age < 18 or > 99

• pregnancy
• breastfeeding mother
• disorders of blood clotting
• kidneystones > 15mm
• aneurysms of the aorta or renal artery
• severe skeletal deformations which hamper one of the treatment modalities
• synchronous stones of the ipsilateral ureter
• stones which can not visualized which X-ray or sonography