Types of Urinary Catheters
There are straight catheters
and “Foley” catheters, the difference between them is the presence of a balloon
on the Foley that holds the catheter in place.
A
Cochrane Review of 42 trials with 4,577 participants comparing
indwelling versus suprapubic, indwelling versus intermittent, and
suprapubic versus intermittent catheterization yielded only low quality
evidence about preferred types of catheters. While some low-quality
evidence suggested that indwelling catheters may risk greater pain than
suprapubic catheters, there was no clear evidence that one type had a
higher or lower risk than another for infection, pain, ease of use,
quality of life, or economic outcomes.3 |
photos courtesy of Byram Healthcare |
Indications
for Supra-Pubic Catheters
Indications for supra-pubic
catheters are shown here and include short-term and long-term use. The catheter
may be placed as a short-term or a long-term treatment.
Short-term use
Acute retention with
obstruction, stricture, or infection; urethral fistula; when clean intermittent
catheters are not possible
Urinary tract of pelvic
trauma; traumatic bladder rupture or persistent urethral catheter problems
Temporary diversion for
gynecologic, abdominal, or urological surgeries
Long-term use
Patient living alone, without
adequate caregiver presence, or inability to self-catheterize
Chronic bladder drainage
without possibility of alternative therapy
Personal choice when long-term
catheter is indicated, or worsening of medical condition
For short-term, a supra-pubic
catheter may be indicated for acute urinary retention in men if there is
prostate obstruction, stricture, or infection. In addition, if there is urinary
or pelvic trauma present, urethral fistula or other disorders, severe
incontinence leading to non-healing pressure ulcers, or the need for temporary
use during gynecologic or other surgeries, a supra-pubic catheter may be
indicated. Indications for longer-term use of suprapubic catheters may include
limitations in self-care or caregiver services, a need for chronic use without
an alternative, or as a patient’s personal choice.
Contraindications include
pregnancy, bladder cancer or pelvic irradiation, abdominal wall sepsis, bleeding
disorders or anti-platelet therapies, non-distended or non-palpable bladder, and
others. If there is an excess of abdominal area fat tissues that might lead to
suboptimal care of the stoma site, a supra-pubic catheter may not be the
preferred route.
Suprapubic catheters (or SPs)
are inserted into the bladder through a surgical cut a few inches below the
navel, about 2 cm above the pubic bone and through the anterior abdominal wall.
Suprapubic catheters can be considered in women if there are problems with
vaginal hygiene.
The up-side of supra-pubic
catheters includes:
-Providing an alternate to
short-term indwelling catheters and reducing risk for infection (note that the
jury is still out on whether supra-pubic catheters are preferable to long-term
indwelling catheters)
-Avoiding trauma and stricture
while increasing comfort
-Less interruption of sexual
activity and mobility
-Enhanced ability for normal
voiding with reduced need to replace the catheter
The potential down-side of
supra-pubic catheters includes:
-Possible bowel perforation or
lodging of tip in urethra or bladder wall
-Risk for stone formation and
hyper-granulation of tissue
-Altered body image |