Hitoshi Takamoto

The Loop-Loosening Procedure for Urination Difficulties after Stamey Suspension of the Vesical Neck

A main complication of an anti-stress urinary incontinence operation in women is postoperative urinary retention or difficulty in urination caused by the urethrovesical junction being suspended too tightly. A total of 7 women who complained of the complication after a modified Stamey operation underwent our procedure in which the suspension loops were loosened to an adequate tension with the patient under local anesthesia. All patients recovered normal voiding without incontinence immediately after the procedure. The Stamey operation uses a nylon loop for suspension of the urethrovesical junction. Therefore, the tightness of the suspension loop can easily be readjusted postoperatively by the procedure, even though initially the suspension of the urethrovesical junction was too tight or too loose. We believe the procedure will enhance the value of the Stamey operation.

Comparison of 25 and 75 mg/day naftopidil for lower urinary tract symptoms associated with benign prostatic hyperplasia: A prospective, randomized controlled study

Background:  The present study investigated the efficacy, safety, and utility of starting an α1d‐selective antagonist, naftopidil, at 75 or 25 mg/day in patients with lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH).

Prostate specific antigen complexed to α-1-antichymotrypsin in patients with intermediate prostate specific antigen levels

The authors attempted to evaluate prospectively the usefulness of serum prostate specific antigen (PSA) complexed to α‐1‐antichymotrypsin (PSA‐ACT) in the early detection of prostate carcinoma and its ability to discriminate between prostate carcinoma and benign prostatic hyperplasia (BPH), especially among patients with intermediate PSA levels.

Early Experiences of Contact Laser Vaporization of the Prostate using the 980 nm High Power Diode Laser for Benign Prostatic Hyperplasia

We report early experiences of contact laser vaporization of the prostate for symptomatic benign prostatic hyperplasia (BPH).

Twelve Months Follow-up of Injection of OnabotulinumtoxinA into Vesical Submucosa for Refractory Non-neurogenic Overactive Bladder.

Objective: The aim of the present study was to assess the effects of onabotulinumtoxinA injection for refractory non‐neurogenic overactive bladder (OAB) for 12 months.

Piezoelectric Lithotripsy of Renal and Ureteric Stones with the EDAP LT-01

One hundred eighty-six patients with upper urinary tract stones underwent piezoelectric lithotripsy (PEL) monotherapy with an EDAP LT-01 lithotripter. All patients were followed up for more than three months after the final session. A total of 560 treatments was performed for 306 renal stones in 141 kidneys and for 84 ureteric stones in 75 ureters. Successful fragmentation was obtained in 75% of renal stone cases and 67% of ureteric stone cases. Successful fragmentation of renal stones was mainly dependent upon the size of the stone. Success was obtained in 93% of stones smaller than 21 mm, in 59% of stones between 21 mm and 30 mm, and in 13% of stones larger than 30 mm in diameter.