title: Change in intraoperative rectal temperature influencing erectile dysfunction following transurethral resection of the prostate.
abstract: OBJECTIVE
  In this study, we assessed the relationship between changes in intraoperative rectal temperature and erectile function in patients who have undergone transurethral resection of the prostate.
  
  
  METHODS
  Eighty-six potential patients with benign prostatic hyperplasia-induced lower urinary tract symptoms were studied. Patients were divided into two groups: group 1-small prostates (<40 ml) and group 2-large prostates (≥ 40 ml), as determined by transrectal ultrasound measurement. The intraoperative rectal temperature was evaluated using a transrectal thermosensor and the differences between the highest intra- and preoperative temperatures were recorded. The erectile function at baseline, at three months and at one-year postoperatively was assessed using the International Index of Erectile Function-5 (IIEF-5) questionnaire.
  
  
  RESULTS
  Intraoperative rectal temperature differences were 0.54 ± 0.24°C for group 1 (n=45) and 0.44 ± 0.20°C for group 2 (n=41), (p=0.04). The IIEF-5 scores for group1 and group 2 were, respectively, 20.9 ± 1.6 and 20.6 ± 1.6 at baseline (p=0.32), 17.3 ± 2.9 and 18.7 ± 3.2 (p=0.037) at 3 months, 17.9 ± 2.7 and 18.7 ± 3.0 (p=0.17) at 1 year postoperatively. The deterioration of erectile function at 3 months post-operatively was observed for both groups. The percentage of retrograde ejaculation between two groups was not significantly different (p=0.33) at 1 year postoperatively.
  
  
  CONCLUSIONS
  Our study revealed that a higher intraoperative rectal temperature difference caused by transurethral resection of the prostate might affect the postoperative erectile function, particularly in patients with a small prostate.
authors: Department of Urology, Zhong-Xing Branch, Taipei City Hospital, Taipei, Taiwan.
authors: Chih-Kuang
authors: CK
authors: Liu
authors: Chun-Hou
authors: CH
authors: Liao
authors: Kong-Sang
authors: KS
authors: Wan
authors: Wen-Kai
authors: WK
authors: Lee
authors: Huey-Sheng
authors: HS
authors: Jeng
authors: Ben-Chang
authors: BC
authors: Shia
authors: Chu-Chieh
authors: CC
authors: Chen
authors: Ming-Chung
authors: MC
authors: Ko
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001831:Body Temperature; D007172:Erectile Dysfunction / Q000209:etiology*; D006358:Hot Temperature / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D011470:Prostatic Hyperplasia / Q000473:pathology / Q000601:surgery*; D012007:Rectum; D020728:Transurethral Resection of Prostate / Q000009:adverse effects*; D016896:Treatment Outcome