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ORIGINAL ARTICLE
Year : 2022  |  Volume : 38  |  Issue : 1  |  Page : 42-47

Thulium fiber laser versus holmium:yttrium aluminum garnet laser for stone lithotripsy during mini-percutaneous nephrolithotomy: A prospective randomized trial


Department of Urology, Sai Urology Hospital, Aurangabad, Maharashtra, India

Correspondence Address:
Abhay Dinkar Mahajan
Department of Urology, Sai Urology Hospital, Aurangabad, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/iju.iju_331_21

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Introduction: We aimed to evaluate the effectiveness and safety of the newly launched thulium fiber laser (TFL) with holmium laser lithotripsy in the miniaturized percutaneous nephrolithotomy (Miniperc) procedure for renal stones. Methods: The prospective study included patients with renal stones of size >1 cm to ≤3 cm. The patients who opted for extracorporeal shock wave lithotripsy, retrograde intrarenal surgeries, and stones >3 cm were excluded from the study. Demographics such as patient's age, sex, stone volume, and hardness were evaluated. The patients were randomized into holmium and TFL group for stone lithotripsy. Both the procedures were evaluated for stone disintegration time, operative time, hospital stay, intra- and postoperative complications, and stone-free rate. Results: A total of 125 patients with renal stones who underwent Miniperc were included in this study. The average size of the stone was comparable in both the groups (P = 0.053). The median stone disintegration time with holmium laser was 20 min 45 s and with TFL, it was 11 min 19 s (P < 0.001). The most common complications were Clavien grade I and II complications (P = 0.128). Prolonged postoperative hematuria was observed in the Thulium fiber laser group, which was conservatively managed. The stone-free rate with TFL (94.9%) was better than Holmium lithotripsy (90.9%). Conclusions: The TFL has significant less stone disintegration time which effectively reduced the operative time of Miniperc procedure. The stone-free rate is better, but the incidence of self-limiting hematuria is higher with TFL as compared to Holmium laser.


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