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J Endourol. 2004 Mar;18(2):183-8.

Does perioperative outcome of transurethral holmium laser enucleation of the prostate depend on prostate size?

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  • 1Department of Urology, Auguste Viktoria Hospital, Berlin, Germany.



In conventional transurethral resection of the prostate (TURP), perioperative morbidity resulting from causes such as blood loss and TUR syndrome increases with prostate size. Therefore, TURP is restricted to small and medium-sized glands. The present study aimed to find out whether perioperative parameters of holmium laser enucleation of the prostate (HoLEP) other than operation time and weight of resected tissue were dependent on prostate size.


A total of 384 patients were treated with HoLEP (holmium:YAG laser, 2.0 J, 40 or 50 Hz, 80 or 100 W, 550-nm bare fiber) for acute removal of obstructing benign hyperplastic tissue. Among them, 111 patients (28.9%) had prostates of <40 g (group 1), 152 (39.6%) had prostates of 40 to 79 g (group 2), and 121 (31.5%) had prostates of >/=80 g (range 80-260) (group 3). The perioperative outcomes of the three groups were compared. A total of 346 patients completed the 1-month postoperative assessment.


The mean prostate sizes were 31.8 g, 56 g, and 98.7 g for groups 1, 2, and 3 (P<0.0001 group 1 v group 2 v group 3). The mean resected tissue weight was 19.5 g v 34.4 g (P= 0.009) v 70.1 g (range 50-220) (P< 0.0001). The mean operation time was 64.3 v 84.2 (P= 0.009) v 118.4 minutes (P< 0.0001). The mean hemoglobin loss was 0.9 v 1.2 (NS) v 1.9 g/dL (P< 0.001). The overall correlation between hemoglobin loss and prostate size in all patients was very weak (r = 0.229) and just exceeded the level of significance (r = 0.2). In all three groups, the median postoperative catheter time was 1 day, and the median postoperative hospital stay was 2 days. The HoLEP resulted in an immediate and significant improvement of American Urological Association Symptom Scores, peak urinary flow rates, and postvoiding residual urine volumes (P< 0.0001) 1 month after the operation, without significant differences between the groups. The rate of complications was similar in all three groups. None of the patients needed blood transfusions. There were no perioperative deaths.


In HoLEP, perioperative morbidity and postoperative micturition improvement do not depend on prostate size. Therefore, in contrast to TURP, HoLEP is equally suitable for small, medium-size, and large prostate glands.

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