Nazaroglu Hasan, Akay A Ferruh, Bükte Yasar, Sahin Hayrettin, Akkus Zeki, Bilici Aslan
Department of Radiology, Faculty of Medicine, Dicle University, TR-21280 Diyarbakir, Turkey.
Scand J Urol Nephrol. 2003;37(5):408-12. doi: 10.1080/00365590310006354.
This prospective study was performed to determine whether extracorporeal shock-wave lithotripsy (ESWL), widely used for treating renal and ureteral stones, affects the kidney interlobar artery resistive index (RI).
A total of 43 patients (30 with renal and 13 with ureteral stones) underwent color Doppler examination before and 30 min and 3 h after ESWL. Seventeen patients with renal and nine with ureteral stones underwent Doppler examination 2 weeks later. Measurements were made near the stones (nearby region), at least 2 cm from the stones (remote region) and in the contralateral kidney for renal stones, and in the ipsilateral and contralateral kidneys for ureteral stones.
In patients with renal stones, the RI was increased 30 min and 3 h after ESWL in the nearby and remote regions, and more markedly in the former. In the contralateral kidney, there was an increase in RI only at 3 h, which was less than that in the ipsilateral kidney. The RI at 2 weeks post-ESWL in the nearby region and contralateral kidney did not differ from the pre-ESWL values. ESWL performed for ureteral stones caused no increase in RI in the ipsilateral kidney.
Patients with renal stones had a temporary increase in RI in the hours following ESWL in both the ipsilateral and contralateral kidneys, which was highest in the region near the stones and lowest in the contralateral kidney. Two weeks later, the RI in both areas had returned to pre-ESWL levels.
本前瞻性研究旨在确定广泛用于治疗肾和输尿管结石的体外冲击波碎石术（ESWL）是否会影响肾叶间动脉阻力指数（RI）。
43例患者（30例肾结石患者和13例输尿管结石患者）在ESWL治疗前、治疗后30分钟和3小时接受了彩色多普勒检查。17例肾结石患者和9例输尿管结石患者在2周后接受了多普勒检查。对于肾结石，在结石附近（邻近区域）、距结石至少2厘米处（远处区域）以及对侧肾脏进行测量；对于输尿管结石，在同侧和对侧肾脏进行测量。
肾结石患者在ESWL治疗后30分钟和3小时，邻近区域和远处区域的RI均升高，且前者更为明显。在对侧肾脏，仅在3小时时RI升高，且低于同侧肾脏。ESWL治疗2周后，邻近区域和对侧肾脏的RI与ESWL治疗前的值无差异。输尿管结石患者进行ESWL治疗后，同侧肾脏的RI未升高。
肾结石患者在ESWL治疗后的数小时内，同侧和对侧肾脏的RI均出现暂时升高，在结石附近区域最高，在对侧肾脏最低。两周后，两个区域的RI均恢复到ESWL治疗前的水平。
