title: Transperineal Prostate Core Needle Biopsy: A Comparison of Coaxial Versus Noncoaxial Method in a Randomised Trial.
abstract: OBJECTIVE
  To compare the procedural time and complication rate of coaxial technique with those of noncoaxial technique in transperineal prostate biopsy.
  
  
  METHODS
  Transperineal prostate biopsy with coaxial (first group, n = 120) and noncoaxial (second group, n = 120) methods was performed randomly in 240 patients. The procedural time was recorded. The level of pain experienced during the procedure was assessed on a visual analogue scale (VAS), and the rate of complications was evaluated in comparison of the two methods.
  
  
  RESULTS
  The procedural time was significantly shorter in the first group (p < 0.001). In the first group, pain occurred less frequently (p = 0.002), with a significantly lower VAS score being experienced (p < 0.002). No patient had post procedural fever. Haematuria (p = 0.029) and haemorrhage from the site of biopsy (p < 0.001) were seen less frequently in the first group. There was no significant difference in the rate of urethral haemorrhage between the two groups (p = 0.059). Urinary retention occurred less commonly in the first group (p = 0.029). No significant difference was seen in the rate of dysuria between the two groups (p = 0.078).
  
  
  CONCLUSIONS
  Transperineal prostate biopsy using a coaxial needle is a faster and less painful method with a lower rate of complications compared with conventional noncoaxial technique.
authors.affiliation: Department of Radiology, Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Babaei Jandaghi
authors.affiliation: Urology Research Center, Razi Hospital, Guilan University of Medical Sciences, Rasht, Iran.
authors.forename: Habib
authors.initials: H
authors.lastname: Habibzadeh
authors.affiliation: Urology Research Center, Razi Hospital, Guilan University of Medical Sciences, Rasht, Iran.
authors.forename: Siavash
authors.initials: S
authors.lastname: Falahatkar
authors.affiliation: Department of Community Medicine, Guilan University of Medical Sciences, Rasht, Iran.
authors.forename: Abtin
authors.initials: A
authors.lastname: Heidarzadeh
authors.affiliation: Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, 19998734383, Iran. ramin_p2005@yahoo.com.
authors.forename: Ramin
authors.initials: R
authors.lastname: Pourghorban
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D062005:Biopsy, Large-Core Needle / Q000009:adverse effects / Q000379:methods; D006417:Hematuria / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000209:etiology*; D011446:Prospective Studies; D011467:Prostate / Q000473:pathology*; D011471:Prostatic Neoplasms / Q000473:pathology*; D013997:Time Factors; D016055:Urinary Retention / Q000209:etiology
keywords: Coaxial; Complication; Image-guided biopsy; Prostate; Transperineal