Health

Stents May Help Bowel Cancer Patients to Avoid Need for Colostomy Bags

According to specialists, bowel cancer patients may avoid the need for colostomy bags if they are first treated by having an expandable tube inserted at the site of their blockage.

The new approach, presented at this year’s American Society of Clinical Oncology (ASCO) Annual Meeting in Chicago – the worlds’ biggest cancer conference – showed that the tube, or stent, cut the risk of complications from surgery.

Experts said colostomy bags, to collect faeces, often frightened patients.

Globally, nearly 1.4 million cases of bowel cancer are diagnosed each year.

This unplanned surgery has a much higher risk of complications compared with routine surgery.

The patient is often in worse health, the swelling caused by the blockage can mean keyhole surgery is not possible so more invasive surgery is needed and there may not be a colorectal specialist surgeon on hand.

The death rate goes up from 2% for planned surgery to 12% in emergency bowel cancer surgery.

After removing the tumor and surrounding bowel, surgeons are also less likely to be able to re-plumb the bowels.

One part of the colon is often hugely distended and the other collapsing in on itself. If it cannot be put back together properly, the risk of needing a colostomy bag soars.

A trial on 250 patients was organized by Cancer Research UK. Half were treated with conventional surgery, but the others had a novel procedure to unblock the bowels.

Surgeons used an endoscope to find the precise location of the blockage and then positioned a stent at the site of obstruction.

When inserted, the tube is just 3mm in diameter. But over 48 hours it expands in response to body heat until it reaches 2.5cm in diameter, creating a new clear passageway through the intestines.

The tumor is then removed once the bowels have healed and the patient has recovered from the blockage.

There was no difference in survival rates between the procedures, but the difference in the need for a colostomy bag was stark.

In the emergency patients, 69% needed a bag to rid their bodies of faeces.

In those treated with the stent, the figure was 45%, according to data presented at the ASCO Annual Meeting.

Prof. James Hill, who led the trial at Central Manchester University Hospitals, said: “Traditionally doctors have worried that unblocking the bowel in this way could increase the chance of cancer spreading, but our early results don’t show this.

“We’re also pleased to see that this could be a way of reducing the risk of patients needing a colostomy bag after their surgery, which is a huge improvement to patients’ day-to-day lives.

“These are early results and we’ll need to follow up our work for three years in full to find out if this technique affects survival and end-of-life care for bowel cancer patients.”

Kathryn R. Bown

Kathryn - Our health specialist likes to share with the readers the latest news from the field. Nobody understands better than her the relation between healthy mind and healthy body.

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