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KMID : 1103720170770020113
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Journal of the Korean Society of Radiology
2017 Volume.77 No. 2 p.113 ~ p.120
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The Effect of Two-Injection Ethanol Sclerotherapy with 5-Minute Duration of Exposure Time in Simple Renal Cysts
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Lee Seung-Eun
Cho Jae-Ho
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Abstract
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Purpose: To evaluate the results of two-injection ethanol sclerotherapy in simple renal cysts performed with 5-minute ethanol exposure time.
Materials and Methods: We retrospectively reviewed 30 renal cysts in 30 patients treated by ethanol sclerotherapy between November 2002 and October 2015. Under ultrasound guidance, the renal cyst was punctured and a 7 Fr pigtail catheter was inserted, and then complete aspiration of the cystic fluid was performed. Then, 99.9% ethanol in a quantity amounting to 1/3?1/2 of the aspirated volume was infused into the cyst and it was immediately removed. The same amount of ethanol was re-infused and removed after 5 minutes. Follow-up examination was performed using ultrasound or CT images at least 3 months after the procedure and pre- and post-treatment cyst volumes were estimated. The therapeutic response was classified as either complete success (volume reduction, ≥ 95%), partial success (volume reduction, 50?95%), or failure (volume reduction, < 50%) based on the volume reduction rate.
Results: The average volume reduction rate was 96.3%. The rates of complete success, partial success and failure were 80% (n = 24), 20% (n = 6), and 0% (n = 0), respectively. There was no complication except for minor flank pain.
Conclusion: Two-injection ethanol sclerotherapy with 5-minute exposure time represents a simple and effective treatment for simple renal cysts.
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KEYWORD
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Sclerotherapy, Ethanol, Kidney Disease, Cystic
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