Megumi Y, Inoue K, Ohmori K, Nishimura K
Department of Urology, Osaka Red Cross Hospital.
Hinyokika Kiyo. 1998 Jul;44(7):481-4.
Transurethral electrovaporization of the prostate (TVP) is a new minimally invasive procedure for treatment of enlargement of prostate. Between April 1996 and September 1997, TVP was carried out in 109 cases with symptoms of lower urinary tract obstruction. A Stortz spike electrode and a Stortz vapor cutting electrode were used for vaporization electrodes. Efficacy parameters evaluated included International Prostate Symptom Score, peak uroflow and postvoid residual volume. By September 1997, 32 cases (spike electrode) and 33 cases (vapor cutting electrode) could be followed up and evaluated. They have shown both subjective and objective voiding improvement. The improvements in subjective symptom scores and objective voiding parameters were not significantly different between the two electrode groups. Early complications included urinary retention, intraoperative burn, stress incontinence, blood transfusion and postoperative hemorrhage. Late complications included urethral stricture, bladder neck contracture and bladder stone. TVP was found to have several advantages, particularly minimal bleeding and the low incidence of postoperative morbidity. The technique is simple and symptoms improve at an early stage following surgery. This study demonstrates that TVP is a safe and effective modality for treatment of BPH. However, long-term studies with larger numbers of patients are needed.
经尿道前列腺电汽化术（TVP）是一种治疗前列腺增生的新型微创手术。1996年4月至1997年9月，对109例有下尿路梗阻症状的患者实施了TVP。汽化电极采用Stortz尖状电极和Stortz汽化切割电极。评估的疗效参数包括国际前列腺症状评分、最大尿流率和残余尿量。至1997年9月，32例（尖状电极组）和33例（汽化切割电极组）可进行随访评估。结果显示主观和客观排尿情况均有改善。两组电极组主观症状评分和客观排尿参数的改善情况无显著差异。早期并发症包括尿潴留、术中灼伤、压力性尿失禁、输血和术后出血。晚期并发症包括尿道狭窄、膀胱颈挛缩和膀胱结石。发现TVP有几个优点，尤其是出血少和术后发病率低。该技术操作简单，术后早期症状即可改善。本研究表明TVP是治疗良性前列腺增生的一种安全有效的方法。然而，需要对更多患者进行长期研究。
