Thulium laser vapo-enucleation treatment for prostates >100 cc following urinary retention.

Practical advantages of Thulium in the endoscopic treatment of BPH include its technical versatility, precision and safety, offering reduced need for haemostasis and risk of injury. Evidence has shown Holmium laser to be effective in the treatment of chronic retention, however no studies address the use of Thulium laser for larger prostates after urinary retention.

We have selected this group in our retrospective analysis on the efficacy of Thulium laser vapo-enucleation for men with both urinary retention and large prostate volumes greater than 100 cc.

We analysed a 10-year single centre operation database of 740 Thulium vapo-enucleation of prostates. An inclusion of 47 living patients with prostates over 100 cc who have undergone the procedure following urinary retention secondary to bladder outflow obstruction (BOO) from benign prostatic hyperplasia (BPH). Patients were sub grouped into Group 1: 100-149 cc and Group 2: >150 cc.

Number of patients in sub groups 1 (n = 27) and 2 (n = 20) had mean prostate volumes of 116 and 173 cc respectively, with the largest measuring 234 cc. Mean resected volumes were 26 g (range 15-50.5 g) and 28 g (range 2-57 g). The overall trial without catheter (TWOC) pass rate for all patients in our series was 96% with comparable results between the two groups. Overall known early and late complication rates for all patients was 17% (UTI 13%, urosepsis 2%, AUR 2%) and 12.5% (failure 5%, OAB symptoms 5%, significant haematuria requiring surgical intervention 2.5%) respectively. Success of surgery was 96%, with an average follow-up of 5 months and no re-referrals for lower urinary tract symptoms following discharge.

We show the use of Thulium laser vapo-enucleation to be safe and effective in the treatment of retention for large prostates. Results have demonstrated signs of long-term efficacy with a low failure rate.

Urologia. 2021 Jul 27 [Epub ahead of print]

Sheena Patel, Masood A Khan

University Hospitals of Leicester NHS Trust, Leicester, UK.

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