title: Longitudinal assessment of changes in sexual function and bother in patients treated with external beam radiotherapy or brachytherapy, with and without neoadjuvant androgen ablation: data from CaPSURE.
abstract: OBJECTIVE
  To evaluate the effects of external beam radiotherapy (EBRT), with or without brachytherapy (BT) boost or brachytherapy monotherapy with and without short-term androgen ablation (<==6 months; STAD) on sexual function (SF) and sexual bother (SB) in men treated for localized prostate cancer.
  
  
  METHODS
  A total of 992 men with newly diagnosed prostate cancer enrolled in the Cancer of the Prostate Strategic Urological Research Endeavor database were studied to assess treatment-related changes in SF and SB. Six treatment subgroups (EBRT - STAD, EBRT + STAD, BT - STAD, BT + STAD, EBRT + BT - STAD, EBRT + BT + STAD) were compared.
  
  
  RESULTS
  The greatest reported changes in SF occurred during the first 2 posttreatment years. Patients receiving BT reported greater SF and the least change in SF overall; those receiving EBRT + BT reported the greatest decline in SF. SF scores associated with STAD were initially lower than in patients without STAD; however by 1 year no statistically significant difference in SF or SB was noted.
  
  
  CONCLUSIONS
  Each treatment for prostate cancer can negatively affect SF and SB. Initial differences among treatment subgroups exist, but diminish with time. SF changes associated with EBRT +/- BT were statistically significant and those for BT were not. STAD appeared to confer only temporary and recoverable impairment of erectile function.
authors.affiliation: Department of Radiation Oncology, University of California San Francisco/Mt. Zion Comprehensive Cancer Center, San Francisco, CA, USA. speight@radonc17.ucsf.edu
authors.forename: Joycelyn L
authors.initials: JL
authors.lastname: Speight
authors.forename: Eric P
authors.initials: EP
authors.lastname: Elkin
authors.forename: David J
authors.initials: DJ
authors.lastname: Pasta
authors.forename: Stefanie
authors.initials: S
authors.lastname: Silva
authors.forename: Deborah P
authors.initials: DP
authors.lastname: Lubeck
authors.forename: Peter R
authors.initials: PR
authors.lastname: Carroll
authors.forename: Mark S
authors.initials: MS
authors.lastname: Litwin
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000726:Androgen Antagonists / Q000009:adverse effects / Q000627:therapeutic use*; D001918:Brachytherapy; D017024:Chemotherapy, Adjuvant; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011471:Prostatic Neoplasms / Q000473:pathology / Q000532:radiotherapy*; D011788:Quality of Life; D012735:Sexual Dysfunction, Physiological / Q000139:chemically induced / Q000209:etiology* / Q000503:physiopathology
chemical_list: D000726:Androgen Antagonists