17763 Biliary Stent

Overview

A biliary stent is a small, soft tube that is put inside your bile duct to keep it open. The bile duct is the thin tube that carries bile — a yellow-green fluid your liver makes to help digest fatty food — from your liver to your small bowel. If the duct becomes narrowed or blocked, bile cannot drain away. That causes a build-up that leads to yellow skin, itching and pain. A stent works like a tiny scaffold inside the duct, holding it open so bile can flow again. It is usually placed during a procedure called ERCP. ERCP stands for endoscopic retrograde cholangiopancreatography — a long, bendy camera passed through your mouth, down your food pipe and stomach, into the first part of your small bowel, where the bile duct opening sits. There are no cuts on the outside of your body.

Yes. Placing a biliary stent is a common and well-established procedure in hospitals worldwide. Thousands are done every year, mostly to relieve a blocked bile duct caused by gallstones, scarring or cancer.

It can affect anyone at any age, but it is most often needed by adults over 50. People who need a stent usually have a blockage from a gallstone, a cancer near the head of the pancreas or in the bile duct itself, or scarring in the duct from past surgery or inflammation. Stents are used in children too, but much less often.

Symptoms

Common symptoms

• Yellowing of the skin and the whites of the eyes — this is called jaundice.
• Dark urine, like the colour of strong tea.
• Pale, clay-coloured or floating stools that are hard to flush away.
• Itchy skin, often worse at night.
• Dull pain in the upper right part of the tummy, sometimes spreading to the back or right shoulder.
• Feeling sick, being sick, or losing appetite.
• Losing weight without trying.
• Feeling very tired or lacking energy.

Symptoms in children

• Yellow skin or yellow eyes that are noticed by a parent or carer.
• Pale stools and dark urine — nappies can make this easier to spot.
• Being unsettled, feeding less, or slow weight gain.
• Itching, which a young child may show by scratching or being irritable.
• Note: biliary stents are uncommon in children, and any jaundice in a baby or child should be checked by a doctor promptly.

Symptoms in older adults

• Confusion or unusual drowsiness can be an early sign of infection in an older person, sometimes before there is any fever.
• Pain may be milder or less well described than in younger people.
• Jaundice can be noticed first by family or carers rather than the person themselves.
• General weakness, falls or loss of appetite may be the main complaint.
• Dehydration and infection can become serious more quickly, so early contact with a doctor matters.

Causes

Main causes

• Cancer of the pancreas, especially at the head of the pancreas, pressing on the bile duct.
• Cancer of the bile duct itself (called cholangiocarcinoma).
• Cancer that has spread to lymph nodes or other tissue near the duct and squeezes it.
• Gallstones that have slipped into the bile duct and become stuck.
• Scarring or narrowing of the duct after gallbladder surgery, liver surgery or a liver transplant.
• Long-term inflammation of the pancreas (chronic pancreatitis).
• A rare condition called primary sclerosing cholangitis, where the bile ducts become inflamed and scarred.
• Injury to the duct, or a narrowing that forms after a previous stent or radiotherapy.

Risk factors

• Being older, as most causes of bile duct blockage become more common with age.
• Smoking and heavy alcohol use, which raise the risk of pancreatic and bile duct cancers.
• A history of gallstones or gallbladder problems.
• Long-standing inflammation of the pancreas or liver disease such as cirrhosis.
• Obesity and type 2 diabetes, which are linked to gallstones and some cancers.
• A family history of pancreatic, bile duct or bowel cancer.
• Certain inherited conditions, such as inflammatory bowel disease linked with primary sclerosing cholangitis.

When to see a doctor

See a doctor urgently if:

• You notice yellow skin or yellow eyes for the first time.
• You have tummy pain with fever, especially with chills or shivering.
• Your stools turn pale and your urine turns dark.
• You have a stent and develop fever, worsening pain or return of jaundice.
• You vomit blood or pass black tarry stools.

Book a routine appointment if:

• You have ongoing itchy skin with no clear cause.
• You have lost weight without trying or your appetite has dropped.
• You have repeated bouts of upper tummy pain after fatty meals.
• You have a stent and want to talk about follow-up, diet or what to expect next.
• You feel anxious about your stent or your treatment plan and want to ask questions.

Diagnosis

The team first works out why bile is not draining. This usually starts with your story and an examination, then blood tests to check your liver and to look for infection. Scans such as an ultrasound, CT scan or MRI show where the blockage is and what is causing it. Often the stent is placed at the same time as the test that confirms the blockage — during an ERCP, when the camera reaches the bile duct opening, the doctor can take a small sample of tissue and place the stent in one session.

Tests that may be done

• Blood tests to check liver and bile duct function, and to look for signs of infection or anaemia.
• Ultrasound scan of the tummy — quick, painless and often the first scan done.
• CT scan to look at the pancreas, bile duct and nearby organs in more detail.
• MRI with a special bile duct sequence (called MRCP), which shows the ducts without needing a camera.
• ERCP — the camera test that can confirm the blockage and allow a stent to be placed.
• A small tissue sample (biopsy) taken during ERCP, to check the cause of a narrowing.
• In some cases, an endoscopic ultrasound, where a small ultrasound probe inside the bowel takes close-up pictures.

What to expect at your appointment

For an ERCP you will usually be asked not to eat for several hours beforehand. You will be given sedation, or sometimes a general anaesthetic, so most people remember little or nothing of the procedure. It takes around 30 to 60 minutes. Afterwards you rest in a recovery area for a few hours while the team checks your pain, your blood pressure and your blood tests. Many people go home the same day or the next day, but you may need to stay in hospital if you had an infection, if the blockage was difficult, or if you need further treatment.

Treatment

The aim is to get bile flowing again, ease jaundice and itching, and treat the cause where possible. A stent is one part of that plan. Your team will also look at what is causing the narrowing — for example, removing a gallstone, treating an infection, or planning cancer treatment — so the stent is fitted into a wider care plan rather than being a treatment on its own.

Self-care at home

• Follow the eating advice your team gives you — usually a normal diet is fine, and small, frequent meals may feel easier at first.
• Drink plenty of water unless you have been told to limit fluids for another health reason.
• Take any prescribed medicines exactly as your team explained, and ask your pharmacist if you are unsure.
• Keep the skin moist with a simple unperfumed moisturiser if you feel itchy, and avoid very hot baths and harsh soaps.
• Note the date of your procedure and any follow-up appointments, and keep a simple diary of symptoms such as fever, pain or changes in stool colour.
• Avoid heavy lifting and strenuous exercise for the short time your team advises after the procedure.
• Tell any doctor, dentist or nurse that you have a biliary stent before other tests or operations.

Medical treatments

Stents come in two main types. Plastic stents are thin tubes, usually used when the blockage is expected to be short-lived — for example, while waiting for a gallstone to be removed or for infection to settle — and they are often taken out or swapped after a few weeks or months. Metal mesh stents are wider and stay open longer, and are used when the narrowing is expected to last, such as with cancer. Both are placed through the camera during ERCP. Alongside the stent, your team may give treatments to fight infection, to control pain, to ease itching, or to treat the underlying condition with cancer therapy, surgery or other specialist care. Your doctor will explain which options fit your situation and the risks and benefits of each.

When is surgery considered?

Surgery may be needed instead of, or in addition to, a stent in some situations — for example, to remove a gallbladder containing stones, to take out a gallstone stuck in the duct, or to remove a cancer when that is possible and safe. Sometimes an operation is used to join the bile duct directly to the bowel so that bile can bypass a blockage. Whether surgery is right for you depends on the cause of the blockage, your general health and your own preferences, so this is a decision to talk through carefully with your specialist team.

Living with this condition

Most people find that once the stent is in and bile is draining, jaundice fades and itching and tiredness ease over a week or two. You can usually return to normal daily activities, work and gentle exercise fairly soon, once your team says it is safe. Some people need their stent checked or changed every few months, and these appointments become part of your routine. It helps to know the warning signs of a blocked or infected stent, so you can act quickly rather than worry silently.

Lifestyle tips

• Eat regular meals and keep fatty, fried and very rich foods to a moderate level, as these can bring on discomfort.
• Keep alcohol low or avoid it, especially if your liver is affected.
• Stay active with gentle walking, which helps digestion and mood.
• Stop smoking if you smoke — your doctor or pharmacist can point you to free support.
• Keep a simple symptom diary so you can describe changes clearly at appointments.
• Carry a card or note saying you have a biliary stent, in case you need medical care away from home.

Diet and exercise

There is no single diet that suits everyone with a stent. Many people do well with ordinary balanced meals, and find that smaller portions more often feel better than large heavy meals. Some find spicy or very fatty foods cause discomfort, so it is worth noticing your own pattern. Fibre from fruit, vegetables and wholegrains, plus plenty of water, helps keep the bowel regular. Gentle exercise such as walking, swimming or cycling is encouraged once you have recovered from the procedure. Build up slowly, and check with your team before returning to heavy lifting or contact sports.

Mental health and emotional wellbeing

Being told you need a stent, especially if it is linked to a serious illness, can bring shock, worry and low mood. It is completely normal to feel anxious before follow-up scans or stent changes. Talk to someone you trust, write down your questions before appointments, and ask your team about psychological support — many hospitals have specialist nurses, counsellors or support workers who can help. If low mood, worry or hopelessness is lasting more than a couple of weeks or affecting your sleep and appetite, please tell your doctor. If you ever have thoughts of harming yourself, contact your local emergency number or a crisis line in your country straight away — you deserve support right now.

Prevention

You cannot always prevent the problems that lead to a biliary stent, but some causes can be lowered. Keeping to a healthy weight, eating plenty of vegetables and fruit, staying active, not smoking and keeping alcohol low all reduce the risk of gallstones, pancreatitis and several cancers. If you have a condition that can narrow the bile ducts, such as primary sclerosing cholangitis, regular specialist follow-up helps problems be found early. If you already have a stent, keeping to your follow-up appointments is the most important thing you can do.

Vaccines

There is no vaccine for bile duct blockage itself. However, some liver conditions can make certain infections more dangerous, so your doctor may recommend routine vaccinations such as those for hepatitis A and B, flu or pneumonia. Ask your practice nurse or pharmacist which vaccinations are right for you.

Screening programmes

There is no general screening programme for bile duct narrowing. People at higher risk — for example those with primary sclerosing cholangitis, certain inherited conditions, or a strong family history of pancreatic or bile duct cancer — may be offered regular scans and blood tests by a specialist. If you think you may be in a higher-risk group, ask your doctor whether extra monitoring is appropriate for you.

Complications

If left untreated

• Bile building up in the liver, which can damage liver cells over time.
• An infected bile duct (cholangitis), which can make you very unwell and is a medical emergency.
• Severe itching, poor appetite, weight loss and increasing tiredness.
• Problems absorbing fat and vitamins, leading to poor nutrition.
• A build-up of waste products in the blood, which can cause confusion and drowsiness.
• In some cases, serious infection spreading through the body.

Long-term outlook

For most people a stent does exactly what it is meant to do: it relieves jaundice, eases itching and helps you feel better, often within days. Plastic stents may need to be changed every few weeks to months, and metal stents can stay in place longer, but both can be looked after and replaced if needed. Many people return to normal daily life with a stent in place. The longer-term outlook depends on the underlying cause, and your specialist team is the best source of information about your own situation — do ask them to explain what they expect and what support is available to you.

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