Objective To investigate the effect and safety of the treatment of renal cysts with color Doppler ultrasound guided percutaneous puncture catheterization drainage and repeated 99% ethanol perfusion. MethodsFifty-eight patients with primary renal cysts were treated with color Doppler ultrasound guided percutaneous puncture catheterization drainage and 99% ethanol perfusion. If the cyst volume was500 mL, injection was given three times per day, 20 min for each injection, and the patient was asked to move in different positions to help distributing the ethanol over the cyst wall. ResultsFifty-eight cysts were detected in the 58 patients. Puncture was performed and the success rate was 100%. Central venous catheter was introduced into the cysts. After follow-up for 0.5 to 3 years, 56 renal cysts were disappeared. The cure rate was 96.6%, and the complications such as bleeding, infection, and organ injuries were not found. ConclusionThe treatment of renal cyst with color Doppler ultrasound guided percutaneous puncture catheterization drainage and 99% ethanol injection is an effective and safe method for the patients with renal cysts.
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