Urology Department, Health Science University, Prof Dr Cemil Taşcıoğlu City Hospital, Istanbul, Turkey.
Urologia. 2022 Aug;89(3):397-403. doi: 10.1177/03915603211037605. Epub 2022 Jan 6.
Percutaneous nephrolithotomy (PCNL) was applied in the prone position until recently. But also, in recent years supine positions was applied in patients with kidney stones. Predicting how much renal stones can be cleared after surgery and possibility of complications is an important question for both surgeons and patients. Therefore different scoring systems are used to evaluate outcomes of PCNL before surgery.
Between 2018 and 2020, 80 patients with renal stone who underwent PCNL in the supine position were evaluated preoperatively by S.T.O.N.E. and Guy's scoring systems (GSS). The predictions of both scoring systems for stone-free and complication rates in patients who underwent PCNL in the supine position were evaluated. Also, these scoring systems were compared among themselves for reliability.
In both scoring systems, there was a statistically significant difference between postoperative stone-free (SF) and residual stone (RS) of patients and in predicting the likelihood of complications in patients. No statistically significant difference was found between the two scoring systems in predicting the stone-free rate.
Our findings revealed that S.T.O.N.E. nephrolithometry and Guy's score systems can be used effectively to predict stone-free rate, complications, and operation duration in supine position PCNL for renal stones.
经皮肾镜碎石术（PCNL）直到最近才采用俯卧位进行。但近年来，仰卧位也应用于肾结石患者。对于外科医生和患者来说，预测手术后肾结石能清除多少以及并发症的可能性是一个重要的问题。因此，在手术前使用不同的评分系统来评估 PCNL 的结果。
在 2018 年至 2020 年间，80 例接受仰卧位 PCNL 的肾结石患者术前分别采用 S.T.O.N.E.和 Guy's 评分系统（GSS）进行评估。评估了这两种评分系统在预测仰卧位 PCNL 患者结石清除率和并发症发生率方面的准确性。此外，还比较了这两种评分系统之间的可靠性。
在这两种评分系统中，术后结石清除率（SF）和残余结石率（RS）之间存在统计学差异，并且可以预测患者发生并发症的可能性。两种评分系统在预测结石清除率方面无统计学差异。
我们的研究结果表明，S.T.O.N.E. 肾结石测量和 Guy 评分系统可有效用于预测仰卧位 PCNL 治疗肾结石的结石清除率、并发症和手术时间。
