Evaluation of flow electromyography in patients with benign prostatic hyperplasia

Shinichiro Kitada, Naotaka Sakamoto, Masatoshi Eto, Syuji Koto, Syunji Sakuma, Mineo Takei, Hirohumi Yamashita, Yukio Osada, Joichi Kumazawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Combined uroflowmetry and external sphincter electromyography studies were done both preopera- tively and postoperatively in patients with benign prostatic hyperplasia. In 56 patients preoperative electromyography during voiding showed silent or markedly suppressed activity in 41 patients (73.2%), while the remaining 15 patients (27.8%) revealed active electromyography. In the postoperative studies, 12 patients revealed active electromyography even after the release of obstruction. The urine flow rate following operation was not drastically improved in the active electromyography group compared to the silent electromyography group. We suppose that long-term urethral obstruction with prostatic adenoma could influence the function of relaxation of the external sphincter muscle in some patients with benign prostatic hyperplasia.

Original languageEnglish
Pages (from-to)148-152
Number of pages5
JournalUrologia Internationalis
Issue number3
Publication statusPublished - 1990

All Science Journal Classification (ASJC) codes

  • Urology


Dive into the research topics of 'Evaluation of flow electromyography in patients with benign prostatic hyperplasia'. Together they form a unique fingerprint.

Cite this