Anterior exenteration
What is an Anterior Exenteration?
An anterior exenteration is a major pelvic surgery performed to remove the bladder and nearby organs affected by advanced cancer. It is most commonly used as a treatment for locally advanced bladder cancer that has spread into surrounding pelvic structures but remains potentially treatable with surgery.
In men, an anterior exenteration usually involves removal of the bladder, prostate, and seminal vesicles. In women, it typically involves removal of the bladder and may include removal of the uterus, cervix, ovaries, fallopian tubes, and part of the vagina depending on the extent of disease. The procedure may also include removal of nearby lymph nodes to assess whether cancer has spread.
Because the bladder is removed, urinary reconstruction is required to create a new way for urine to leave the body. This may involve creating an ileal conduit (urostomy), where urine drains into an external bag, or another form of urinary diversion depending on the patient’s condition.
What are the Benefits of an Anterior Exenteration?
For carefully selected patients, anterior exenteration can offer important treatment benefits.
Benefits include:
- Removes the primary cancer and affected nearby organs
- May provide long-term cancer control
- Offers a potential curative treatment for selected advanced bladder cancers
- Allows removal of surrounding tissues involved by cancer
- Provides detailed assessment of cancer spread through pathology testing
- May reduce symptoms caused by locally advanced disease
- Can be combined with other cancer treatments when appropriate
When is an Anterior Exenteration Recommended?
Anterior exenteration is recommended in selected patients when bladder cancer has extended into nearby pelvic organs but surgical removal remains possible.
It may be considered for:
- Muscle-invasive bladder cancer involving surrounding organs
- Locally advanced bladder cancer without distant spread
- Recurrent bladder cancer confined to the pelvis
- Bladder tumours that cannot be completely removed with less extensive surgery
- Selected cases where other treatments have not controlled the disease
Before recommending this procedure, your urology team will assess imaging results, cancer stage, overall health, and whether complete removal of the cancer is achievable.
What does Preparation for an Anterior Exenteration Involve?
Because anterior exenteration is a complex operation, careful preparation is required.
Preparation may include:
- Detailed medical history and physical examination
- CT, MRI, or PET imaging to assess cancer spread
- Blood tests to check general health and kidney function
- Review by a multidisciplinary cancer team
- Discussion of urinary diversion options
- Nutritional assessment and optimisation
- Assessment by an anaesthetic team
- Review of current medications, including blood-thinning medicines
- Smoking cessation advice if applicable
- Discussion of recovery, lifestyle changes, and possible complications
Patients are usually provided with detailed information about living with a urinary diversion before surgery.
How is an Anterior Exenteration Performed?
Anterior exenteration is performed under general anaesthetic and usually requires a hospital stay of several days to weeks, depending on recovery.
The surgeon begins by carefully accessing the pelvis and assessing the extent of cancer involvement. The bladder and affected surrounding organs are then removed as a single surgical specimen to maximise the chance of complete cancer clearance.
In men, this commonly involves removal of the bladder, prostate, and seminal vesicles. In women, removal may include the bladder, uterus, cervix, ovaries, fallopian tubes, and part of the vaginal wall if required.
Pelvic lymph nodes may also be removed to check whether cancer cells have spread beyond the primary tumour.
After the cancer-containing tissues are removed, the surgeon creates a urinary diversion. An ileal conduit is one of the most common options and involves using a short section of small bowel to create a passage for urine from the ureters to a small opening on the abdomen (stoma). Urine then drains continuously into an external collection bag.
In selected patients, other forms of urinary reconstruction may be considered depending on anatomy, cancer treatment, and individual circumstances.
What to Expect during Recovery after an Anterior Exenteration?
Recovery after anterior exenteration is gradual because of the complexity of the operation.
During recovery, you may experience:
- A hospital stay of approximately one to three weeks
- Temporary drains and tubes
- Gradual return to eating and normal activity
- Education on caring for your urinary diversion
- Fatigue for several weeks or months
- Follow-up appointments to review healing and pathology results
- Ongoing cancer surveillance
Patients are encouraged to gradually increase activity while allowing time for the body to recover. Support from specialist nurses and rehabilitation teams can help with adapting to changes after surgery.
What are the Risks and Complications of an Anterior Exenteration?
Anterior exenteration is a major operation and carries significant potential risks.
Possible complications include:
- Bleeding requiring transfusion
- Infection
- Blood clots
- Bowel complications, including obstruction or leakage
- Urinary diversion complications
- Leakage from surgical connections
- Wound healing problems
- Changes in sexual function
- Erectile dysfunction in men
- Vaginal changes in women
- Lymphatic fluid collections
- Kidney problems
- Need for additional procedures
- Cancer recurrence
- Anaesthetic-related complications
Your urological cancer team will discuss whether anterior exenteration is appropriate for your situation, explain the expected benefits and risks, and provide comprehensive support throughout treatment and recovery.