目的 探讨持续负压吸引在微通道经皮肾镜取石术治疗鹿角形肾结石的临床效果。方法 选取2016年1月—2017年12月在我院确诊鹿角形肾结石并行经皮肾镜取石术治疗的病例138例;根据通道大小、有无负压吸引装置分为观察组和对照组,其中观察组66例,采用20F微通道联合持续负压吸引,对照组72例,采用22F标准通道,无负压吸引。比较两组的术中生命体征变化、肾盂内压力以及术后发热的发生率。结果 观察组在术中血压和心率等生命体征变化、肾盂内压力以及术后发热的发生率均低于对照组,差异有统计学意义(P<0.05)。结论 微通道联合负压吸引行经皮肾镜取石术治疗鹿角形肾结石可以有效降低肾盂内压力,有效维持生命体征的稳定,减少术后发热的发生率,提高手术安全性。

Objective To explore the clinical effect of percutaneous nephrolithotomy for treatment of staghorn kidney stonesusingmicro-channel combined with vacuum suction. Methods A total of 138 patientsofstaghorn kidney stones with PCNL in our hospital from January 2016 to December 2017 were included and divided into experimental group and control group according to the size of the channel and the vacuum suction device. Y-type minimally invasive dilatation drainage kit of 20F micro-channelandvacuum suctionwere used in experimental group within 66 patients.A standard channel (22F diameter) without vacuum suction was used in control group within 72 patients. The changes in vital signs, intrapelvic pressureand incidence of postoperative fever were compared between experimental and control groups. Results The vital signs variety of blood pressure and heart rate, intrapelvic pressure and incidence of postoperative fever in experimental group were lower than those in control group(P<0.05). Conclusion Micro-channel combined with vacuum suctioninpercutaneous nephrolithotomy for treatment of staghorn kidney stones could effectively maintenance of stable vital signs, reduce intrapelvic pressure and the incidence ofpostoperative fever, and improve the safety of surgery.

目的 不同通道下的经皮肾镜取石术肾盂压力监测治疗鹿角形肾结石的临床分析。方法 选取我院2016年1月–2017年12月收治的鹿角形肾结石患者120例,通过随机分组,分别采用16F、18F、20F、22F、24F 作为手术通道,在气管插管全麻下置入8/9.8F 输尿管镜行经皮肾镜气压弹道碎石取石术,行经皮肾镜取石术,术中通过监测输尿管导管的压力,即肾盂内压并记录。测压系统每秒钟采集一次数据并录入数据库。观察不同通道下肾盂内压力以及取石速度。结果 在24F通道下肾盂内压力最低,与其他通道组进行比较,差异有统计学意义（P<0.05）;肾盂内压力大于40 cmH₂O时在24F通道下取石速度最短,与其他通道组进行比较,差异有统计学意义（P<0.05）;24F通道与22F通道下取石速度最快,与其他通道组进行比较,差异有统计学意义（P<0.05）。结论 肾盂内压监测使经皮肾镜取石术更加安全和精确,值得临床进一步推广应用。

Objective To investigate the pyelolithic pressure monitoring in percutaneous nephrolithotomy of different channel in treatment of renal staghorn calculi. Methods 120 patients of staghorn renal calculi in our hospital were selected from January 2016 to December 2017. These patients were randomly divided into 5 groups according to the operation channel（16F,18F,20f,22F,24F）. During operation,renal pelvis,ureter catheter pressure and operation time were recorded. Results The lowest renal pelvis pressure could be found in the 24F channel and the difference was statistically significant（P<0.05）. The lowest operation time could be found in the condition of the renal pelvis pressure of more than 40cmH₂O and 24F channel（P<0.05）. Beside of this, the fastest stone-free rate could be found in 22F and 24F channel（P<0.05）. Conclusion Monitoring of renal pelvic pressure makes percutaneous nephroscopic surgery more accurate and safety. It is worthy of clinical application.

目的 探讨不同剂量右美托咪定(Dex)对腰硬联合麻醉下经皮肾镜碎石术患者的镇静效应和安全性。方法 腰硬联合麻醉下行俯卧位经皮肾镜碎石术患者80例,随机分成4组。D1组、D2组、D3组俯卧位后静脉泵注负荷剂量DEX 0.5 μg/kg,输注的时间为10min,随后分别静脉泵注DEX 0.3 μg/(kg·h)、0.5 μg/(kg·h)、 0.7 μg/(kg·h)至术毕;C组俯卧位后静脉泵注生理盐水10 mL/h至术毕。记录T0～T6共7个时点的HR、MAP、p(O₂)和BIS值;在T0、T3～T6等时点对患者静息Ramesay镇静评分;观察患者不良反应发生情况;询问综合满意度。结果 D2组和D3组的HR、MAP、BIS、Ramesay镇静评分在T3~T6等时点明显慢于C组(P＜0.05);D3组心动过缓和头晕等不良反应的发生率明显高于D1组、D2组和C组(P＜0.05),D2组和D3组术中躁动的发生率明显低于D1组和C组(P＜0.05),D1组、D2组和D3组高血压、寒战和恶心呕吐的发生率明显低于C组(P＜0.05),且综合满意度明显高于C组。结论 DEX本药物用于该类手术的镇静疗效及安全性均优于对比的药物。建议临床使用剂量为DEX负荷剂量0.5 μg/kg,随后以0.5 μg/(kg·h)维持。