The “all-seeing needle” micro-PCNL versus flexible ureterorenoscopy for lower calyceal stones of ≤ 2 cm

• DOI: 10.1007/s00240-018-1049-7
• Publication Date: 2018-03-01T09:59:17Z
• Authors: Kehua Jiang; Hongbo Chen; Xiao Yu; Zhiqiang Chen; Zhangqun Ye; Huixing Yuan
• Keywords: Adult; Male; Operative Time; Lasers, Solid-State; Nephrolithotomy, Percutaneous; Length of Stay; Middle Aged; Lithotripsy, Laser; Kidney Calices; 3. Good health; Kidney Calculi; 03 medical and health sciences; Postoperative Complications; Treatment Outcome; 0302 clinical medicine; Ureteroscopy; Humans; Female; Prospective Studies

The objectives of the study are to compare the safety and efficacy of "all-seeing needle" optical puncture system micro-percutaneous nephrolithotomy (micro-PCNL) and flexible ureterorenoscopy (FURS) for the treatment of lower calyceal stones of ≤ 2 cm and to determine the advantages and disadvantages of each. 116 patients in total with lower calyceal stones of ≤ 2 cm were randomly divided into two equal groups, "all-seeing needle" optical puncture system micro-PCNL and FURS. In both groups, holmium laser was utilized for lithotripsy. The perioperative parameters were compared between the two groups. Compared to the "all-seeing needle" micro-PCNL group, the mean operative time was significantly longer in the FURS group (P = 0.000). However, there was no significant difference between the two groups with respect to mean hemoglobin reduction (P = 0.087), complications (P = 0.731) and LOS (P = 0.856). The overall SFR of the "all-seeing needle" micro-PCNL group and FURS group was 84.5% (49/58) and 79.3% (46/58), respectively, without any significant difference between the groups (P = 0.469). For treating lower calyceal stones of ≤ 2 cm, the "all-seeing needle" micro-PCNL group had shorter operative time than FURS, while no significant differences between the two groups with respect to mean hemoglobin reduction, complications, LOS and SFR were found.