Introduction: Detrusor underactivity (DUA) is a highly prevalent and poorly understood disease in urology practice. Conservative treatment in the form of clean intermittent catheterization (CIC) and pharmacotherapy are in use for DUA without good results. Endoscopic prostate surgery was initially considered ineffective in such patients. But a recent series of retrospective studies showed promising results of surgery in DUA. Therefore, we conducted this prospective study to evaluate success of endoscopic prostatic surgery in a patient with DUA. Materials and methods: This is prospective observational study of 50 patients, satisfying the inclusion criteria, at Ruby Hall Clinic, Pune, conducted between March 2017 and March 2019. Inclusion criteria are that the patients are male, aged > 50 years; urodynamically diagnosed with DUA; a bladder contractility index < 90 with associated bladder outlet obstruction index (BOOI) between 20–40 (equivocal) or > 40 (obstruction), who presented with lower urinary tract symptoms and poor flow ( Qmax < 10 ml/s in a voided volume of >150 ml. Patients were excluded from the study if they had DUA due to neurological causes or spinal trauma, an acontractile detrusor, and were < 50 years. Results: The follow-up period for each patient was 12 months. The mean international prostate specific score reduced from 24.82 ± 2.74 preoperatively to 4.4 ± 1.85 postoperatively. Mean quality of life score reduced from 4.06 ± 0.68 to 0.82 ± 0.62. Mean Qmax increased from 6.26 ±1.46 ml/s to 12.22 ±1.6 ml/s. Mean post-void residual urine volume reduced form 241.9 ±74.9 to 77.3 ±20.75. All of these were statistically significant with a p value < 0.00001. Conclusion: Transurethral resection of the prostate (monopolar/laser) to reduce BOO should be considered as an alternative, viable treatment option in men with DUA. Preoperative counselling and postoperative follow-up are crucial in the management of such patients. Level of evidence:
