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[Percutaneous renal cyst puncture and ethanol instillation]
Y Nishikawa1, H Suzuki, F Suzuki
1Department of Urology, Teikyo University School of Medicine, Ichihara Hospital.
Nihon Hinyokika Gakkai Zasshi. the Japanese Journal of Urology
|September 1, 1992
Summary
Ethanol instillation effectively reduces simple renal cysts after ultrasound-guided aspiration. This minimally invasive technique offers a high success rate for cyst reduction and symptom relief.
Area of Science:
- Urology
- Medical Imaging
- Interventional Radiology
Context:
- Simple renal cysts are common and often asymptomatic.
- Percutaneous aspiration is a standard treatment, but recurrence rates can be high.
- Ethanol sclerotherapy is an established technique for cyst ablation.
Purpose:
- To evaluate the efficacy of ethanol instillation in reducing simple renal cysts after percutaneous aspiration.
- To assess the safety and recurrence rates of ethanol-instilled renal cysts.
Summary:
- Seventy-nine simple renal cysts in 65 patients underwent ultrasound-guided aspiration using a 5 Fr single J catheter and 19-gauge needle.
- Forty-eight successfully punctured cysts were instilled with absolute ethanol for 5 minutes.
- Ethanol-instilled cysts showed a significantly higher reduction rate (93% ± 17%) compared to non-instilled cysts (32% ± 28%) over three-month follow-up via sonography or CT.
- Hematuria resolved in most patients post-procedure.
Impact:
- Ethanol instillation is a valuable adjunct to percutaneous aspiration for effective renal cyst reduction.
- This technique may improve patient outcomes by decreasing cyst size and associated symptoms.
- The study supports ethanol sclerotherapy as a minimally invasive treatment option for symptomatic or large simple renal cysts.