AKAkira Komiya

Akira Komiya

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

The organizations/institutes from the scholar's latest article

Previous Organizations / Institutes

The organizations / institutes from the scholar's other articles in the past ten years


Akira Komiya has a total of 17 co-authors. Here are the top co-authors by number of shared publications:

  • Hiroyoshi Suzuki

    Department of Urology, Chiba University Graduate School of Medicine, Chiba

    2 shared publications
  • Kazuhiro Araki

    Department of Urology, Chiba University Graduate School of Medicine, Chiba

    2 shared publications
  • Tomohiko Ichikawa

    Department of Urology, Chiba University Graduate School of Medicine, Chiba

    2 shared publications
  • Yukio Naya

    Department of Urology, Chiba University Graduate School of Medicine, Chiba

    2 shared publications
  • Hideki Fuse

    Department of Urology, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Toyama, and

    1 shared publication
  • Hiroomi Nakatsu

    Department of Urology, Chiba University Graduate School of Medicine, Chiba

    1 shared publication

Latest Publications

  • Open Access

    Clinical effect of naftopidil on the quality of life of patients with lower urinary tract symptoms suggestive of benign prostatic hyperplasia: A prospective study

    by Akira Komiya, Hiroyoshi Suzuki, Yusuke Awa, Ken‐Ichi Egoshi, Tetsuro Onishi, Hiroomi Nakatsu, Takemasa Ohki, Kazuo Mikami, Naohide Sato, Kazuhiro Araki, et al.

    Objectives:  To investigate the benefit of α1‐adrenoceptor antagonist naftopidil on the quality of life (QOL) of patients with lower urinary tract symptoms suggestive of benign prostatic hyperplasia (BPH/LUTS).Methods:  A total of 99 men with BPH/LUTS were prospectively recruited. The Short Form‐8 (SF‐8) was used for generic QOL assessment and each parameter was compared with the norm in these patients. Longitudinal changes were evaluated using the SF‐8 and the International Prostatic Symptoms Score (I‐PSS) at baseline, 4 and 8 weeks after naftopidil administration. The relationship between SF‐8 and I‐PSS was analyzed.Results:  Five of eight components in the SF‐8 were significantly lower than the Japanese national norm at baseline. SF‐8 score was improved by naftopidil at 4 and 8 weeks in general health (GH) and physical component summary (PCS) in the patients in their 70s. Mental health (MH) and mental component summary (MCS) were improved at 8 weeks in patients in their 60s. When analyzing the whole cohort, SF‐8 GH, role emotional (RE) and MH had improved at 8 weeks, which was similar to the norm, and bodily pain (BP) results were better. Compared with the baseline, total I‐PSS, storage/voiding symptoms and QOL index scores improved significantly under naftopidil. Each component of I‐PSS (except for hesitancy) correlated with SF‐8 sub‐scales (except for BP) to some extent.Conclusions:  BPH/LUTS impairs generic QOL, which is improved by naftopidil treatment. SF‐8 can be a useful instrument to assess the efficacy of BPH/LUTS treatment because its simplicity to complete and analyze, and its meaningful relationship to I‐PSS.


  • Oral analgesia by non-steroidal anti-inflammatory drug zaltoprofen to manage cystoscopy-related pain: A prospective study

    by Akira Komiya, Takumi Endo, Masayuki Kobayashi, Woojin Kim, Kazuhiro Araki, Yukio Naya, Hiroyoshi Suzuki, Toyofusa Tobe, Tomohiko Ichikawa, Hideki Fuse

    To examine the pre-emptive analgesic effect of the non-steroidal anti-inflammatory drug zaltoprofen against rigid cystoscopy-associated pain, and compare it with the effect of an anesthetic gel.Forty men periodically undergoing follow-up office cystoscopy were enrolled in this prospective study. The effects of lidocaine gel alone or in combination with zaltoprofen, were examined. The following parameters were assessed using an 11-point numerical rating scale: pain during injection of gel into the urethra, insertion of rigid cystoscope, and the endoscopic examination of the urinary bladder, pain at the first urination after cystoscopy, and at the first urination in the following morning at home.Pain scores with pre-emptive zaltoprofen plus lidocaine gel were significantly lower than the ones with lidocaine gel alone at the time points of inserting rigid cystoscope into the urethra, viewing inside the urinary bladder and the first urination after cystoscopy. The efficacy of zaltoprofen was more significant in the patients with higher baseline pain score. There was no correlation between pain scores and bladder cancer grading, number of tumors, and time from surgery.Pre-emptive zaltoprofen is able to control cystoscopy-associated pain, which translates into better quality of life for patients. Thus, its use is recommended in the management of these patients.