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Suprapubic catheter

A catheter into the bladder through the lower abdomen. The 3am fact: if it falls out, the track closes within hours - replace it fast - and a fresh one blocking in the first weeks must not be forced.

Adult & paediatricUrinaryStated practice - no UK guideline found

Also called: suprapubic catheter, SPC, suprapubic tube, SP catheter, bladder drain through the tummy

What it is

A suprapubic catheter (SPC) drains the bladder through a tube passed through the lower abdominal wall, not the urethra - preferred by many long-term catheter users because it is easier to manage and avoids urethral trauma. It is held by a balloon, like a urethral catheter, and has the same spectrum of problems (blockage, bypassing, infection, bladder spasm, bladder stones).

Two facts make it its own entry. First, if the catheter comes out, the track through the abdominal wall starts to close within hours, and if it closes you cannot simply re-pass one - so a displaced SPC is a time-critical problem. Second, a newly formed SPC (first few weeks) has an immature track, so a blockage or dislodgement then is handled differently and must not be forced. The same autonomic-dysreflexia risk applies as for any catheter in a cord-injured patient.

How to recognise it

What it gets confused with

A urethral catheter enters via the waterpipe; a suprapubic catheter enters through the lower abdomen. It matters because a dislodged suprapubic catheter must be replaced within hours before the track closes, and a very new one must not be forced. Look at where the tube enters the body.

Open that entry →

What goes wrong

Fallen out / dislodged (the track closes fast)

The catheter has come out, partly or completely; the patient may arrive holding it.

Red flag
Replace it urgently: You need to take immediate action, because the track into your bladder will close off quickly if the catheter is removed. BAUS tells patients if your catheter falls out it must be replaced immediately or the track into your bladder will close and it will not be possible to put another catheter in - and to treat it as an A&E emergency. If you cannot re-pass one, keep the track open (a smaller catheter/dilator) and call urology at once.

Blockage in a newly-formed SPC (immature track)

An SPC placed within the last few weeks that has blocked or come out, where re-insertion is difficult.

Red flag
Do not force a replacement into an immature track - a false passage is easy to create. BAUS: if your catheter blocks within the first four to six weeks after surgery, it may be difficult to change it easily because the track into your bladder will not have matured (healed). The safe move: Your GP or District Nurse should put in a urethral catheter (through your waterpipe) as well, leave your blocked suprapubic catheter in place, and refer you urgently to your urologist or urology specialist nurse.

Blockage in an established SPC

A mature SPC not draining, with a full bladder and discomfort.

Red flag
Flush or replace it to relieve the bladder, as for a urethral catheter. In a cord-injured patient the same autonomic-dysreflexia emergency applies - drain the bladder.

Site infection, bypassing or bleeding

Redness, pus or pain at the abdominal site; leakage around the tube or per urethra; blood in the urine or at the site.

Red flag
Treat site infection and look for a blocked catheter behind bypassing. Significant bleeding or deep site infection needs urology.

The first ten minutes

  1. If it has fallen out, act on the clock - the track closes within hours. Replace the catheter promptly through the existing track if you are competent, then confirm it drains urine; if not, keep the track open and call urology immediately.
  2. If the SPC is only days or weeks old, do not force a replacement - pass a urethral catheter to drain the bladder, leave the SPC site alone, and refer urgently.
  3. If an established SPC is blocked, relieve the bladder by flushing or replacing it.
  4. Ask about spinal cord injury - a blocked SPC in a T6-or-above patient is autonomic dysreflexia; drain the bladder and sit them up (see the panel).
  5. Treat infection on symptoms, not colonisation, and send a sample if symptomatic.
  6. Call urology for a track you cannot re-catheterise, a new SPC, or site problems.

Do not

Do not leave a dislodged suprapubic catheter site empty while you deliberate.
The track closes within hours; once closed, a new SPC needs a fresh surgical procedure. Replace the catheter or keep the track open, then confirm and refer.
Do not force a replacement into a recently-formed SPC track.
An immature track (first four to six weeks) is easily turned into a false passage. Drain the bladder with a urethral catheter instead, leave the SPC in place, and refer urgently.
Do not ignore a blocked SPC in a spinal-injured patient.
As with any catheter, a distended bladder in a cord injury at or above T6 triggers autonomic dysreflexia, a hypertensive emergency. Drain the bladder.
Do not treat asymptomatic bacteriuria.
A long-term SPC is colonised; antibiotics are for symptomatic infection, not a positive dipstick or culture alone.

Who owns it

The urology / continence team (and paediatric urology in children) own the SPC; involve the spinal injury centre for autonomic dysreflexia. Tell them how long the SPC has been in (new vs established), whether it is out, blocked or infected, and whether the patient has a spinal cord injury.

Autonomic dysreflexia: why a blocked catheter can kill

In a patient with a spinal cord injury at or above T6, a blocked or kinked catheter - or any noxious stimulus below the injury - can trigger a hypertensive crisis. The device problem that looks like a nursing job is a time-critical medical emergency, and the treatment is to remove the cause, usually by unblocking or replacing the catheter. This is the single most dangerous fact in the urinary-device group.

What it is, and who it happens to
Autonomic Dysreflexia (AD) is a potentially dangerous (and occasionally fatal) clinical syndrome of uncontrolled hypertension that affects people who have a spinal cord injury. It most often affects people with a neurologic level of spinal cord injury at or above the sixth thoracic cord segment (T6); it is very unlikely to occur with injuries below T10.
The bladder is the usual trigger
The commonest causes are a distended bladder or bowel or a urinary tract infection (UTI). Bladder distension accounts for Bladder distention (80% of all cases) - so a blocked, kinked or clamped catheter in a cord-injured patient is a prime cause, alongside a loaded rectum.
How it presents
A pounding headache with a blood pressure far above the patient's usual low baseline: frontal headache is the commonest symptom of AD, and it should always prompt measurement of the blood pressure. It is an emergency - AD is a medical emergency and requires immediate intervention to reduce the possibility of serious consequences including retinal detachment, intracranial haemorrhage, seizures and death.
What to do first
The simplest approach is to identify and remedy the cause. Sit the patient up (immediately sit the person up if the patient is supine) to drop the blood pressure, then go straight to the catheter: unkink it, and If there is retention of urine, catheterize the patient (or re-catheterize if the problem is a blocked catheter). Use plenty of local-anaesthetic lubricant gel when instrumenting the urethra, so re-catheterisation does not itself add to the noxious stimulus. If the cause cannot be found or the pressure stays dangerously high, treat the hypertension and get senior help.
Do not treat the headache and miss the cause
The patient's own SCI centre and their personal AD plan are the experts; call them. The fix is mechanical - restore drainage and empty the bladder - not analgesia. Giving an opioid for the headache while the catheter stays blocked leaves the trigger in place.

Who to call

The team and the criteria are national. The phone number is local, and this tool does not know it. Find it once, now, and write it on the department's own card — that is the part no website can do for you.

Say the device name first
Open with laryngectomy, LVAD, shunt — the single word changes who comes and what they bring. Do not bury it in the history.
Say what you have already established
Whether the device is patent, whether it has been removed or disturbed, and what you have already tried. The specialist is deciding whether to walk or run.
Ask who owns it out of hours
Device ownership and the on-call route often differ from the implanting specialty, and it is frequently a regional centre rather than your own hospital.
The patient's own team is a resource, not an afterthought
Named nurse specialists, home-care companies and device helplines answer questions nobody else can, and the patient usually has the number.

What the patient will be carrying

SPC patients and carers usually know the catheter size, change schedule and urology contact; many are trained to replace the catheter and will know how new the SPC is.

Scope of this page

This page covers the ED response to a suprapubic catheter problem: a dislodged catheter and its closing track, a newly-formed SPC that must not be forced, blockage, infection and the autonomic-dysreflexia risk. It does not teach SPC insertion or the first surgical change (a urology procedure). Used in adults and children; paediatric care is directed by paediatric urology.

Sources