Percutaneous Sclerotherapy with Aethoxysklerol in the Treatment of Simple Renal Cyst: A Five-Year Experience of a Single Institution

Abstract

Objective To evaluate the efficacy and safety of sclerotherapy using aethoxysklerol in the outpatient treatment of simple renal cysts. Materials and Methods Between 2008 and 2013, 86 symptomatic patients (44 men, 42 women) with 89 simple renal cysts with a diameter larger than 5 cm on ultrasonography (US) or computed tomography were documented in the study. Initial cyst puncture was done with an 18G needle under US guidance with the patient in the prone position. At the end of the aspiration, 2 ml of 1% aethoxysklerol was injected into the cystic cavity per 100 ml of cystic fluid aspirated. Success rate was evaluated as complete or partial; >90% reduction or 50-90% reduction in cyst size, respectively. Failure was defined as 10 cm and between 7.5-10 cm in diameter were significantly higher than that in upper pole cysts in same sizes (p=0.009 and p=0.018, respectively). When the success rate of sclerotherapy was assessed according to the cyst sizes, the success rates and cyst sizes were inversely proportional (p=0.01). Conclusion Sclerotherapy with aethoxysklerol is a reliable, cost-effective, minimally invasive, and effective method for the treatment of simple renal cysts.

Keywords

• Aethoxysclerol
• minimally invasive
• renal cyst
• percutaneous sclerotherapy
• ultrasound-guided