Background: Transrectal ultrasound biopsy is the preferred method for
diagnosing prostate cancer, but it can cause infectious complications as
a result of fluoroquinolone resistance. We aimed to explore the
potential protective effect of a second rectal enema before biopsy.
Methods: Between January 2015 and December 2020, 419 patients were
assessed retrospectively. Patients with a history of anticoagulant use,
uncontrolled diabetes, urological surgery, prostate biopsy, or recent
hospitalization or overseas travel, as well as those with previous
prostatitis, were excluded from the study. The patients were
subsequently divided into two groups: Group 1 (n=223) had received one
enema, on the morning of the biopsy, and Group 2 (n=196) had received
two, with the additional enema administered half an hour before the
procedure. Results: There was no significant difference between the
groups in terms of age, BMI, diabetes, prostate-specific antigen (PSA)
level, and prostate size (p=0.076, p=0.489, p=0.265, p=0.193, and
p=0.661, respectively) or in relation to cancer detection (p=0.428). The
median hospitalization date was significantly higher in Group 1
(p=0.003) as was UTI development (p=0.004). However, there was no
significant difference in terms of fever and sepsis (p=0.524 and
p=0.548, respectively). Additionally, subgroup analysis demonstrated
that UTI was significantly lower in patients with diabetes mellitus who
had received a second enema (p=0.004), though there was no significant
difference in UTI between the groups in those without diabetes mellitus
(p=0.215). Multivariable analysis showed that age and diabetes were
significant risk factors for the development of UTI (p=0.002andp=0.003,
respectively). Furthermore, the second enema was a significant
protective factor for preventing UTI (p<0.001). Conclusion:
Older age and the presence of diabetes mellitus are independent risk
factors for UTI after prostate biopsy. A second enema procedure before
biopsy may protect patients from related infectious complications and
could therefore be used as an alternative preventative method.