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KMID : 1103720090610040215
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Journal of the Korean Society of Radiology
2009 Volume.61 No. 4 p.215 ~ p.220
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Comparison of Alcohol-Retention Sclerotherapy for Simple Cysts: Single-Session Prolonged and Multi-Session Techniques
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Park So-Hee
Yang Jee-Chul
Shin Sug-Kyun
Kim Do-Joong
Park Soo-Mi
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Abstract
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Purpose: To compare the therapeutic results of single-session prolonged sclerotherapy to a multi-session technique in patients with renal cysts.
Materials and Methods: We reviewed 47 renal cysts of 47 patients treated by sclerotherapy. All cysts were diagnosed by ultrasonography or CT. Twenty-seven cysts (group 1) were treated by multi-session sclerotherapy, which consisted of 95% alcohol retention (20-30% of the cyst volume) for 20 minutes after aspiration of the cyst fluid, which was repeated at a 24 hour interval until the daily drained fluid decreased to 10 mL. In addition, 20 cysts (group 2) were treated by single-session prolonged sclerotherapy, which consisted of one treatment session with alcohol retention (30-50% of cyst volume) for 2 hours. All patients had a follow-up ultrasonography at 3 to 6 month intervals for at least 6 months after the procedure. The therapeutic response of the treatment was classified as either a complete success (no residual cyst), partial success (diameter reduction, >50%), or failure (diameter reduction, <50%).
Results: The complete success rates in each group were 41% and 40%, along with partial success rates of 59% and 60%. No cases of treatment failure were observed in either group. In addition, no statistical difference in the therapeutic success rate was observed between two groups (p = 0.317).
Conclusion: Of the two sclerotherapy techniques, we recommend the single-session prolonged sclerotherapy, considering its comparable therapeutic outcome, patient comfort and reasonable cost-effectiveness.
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KEYWORD
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Sclerotherapy, Alcohols, Ethanol, Kidney diseases, cystic, Sclerosing solutions
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