Gastric Band Care & Adjustment Guide

Living with an Adjustable Gastric Band

An adjustable gastric band (lap band) is a silicone ring placed laparoscopically around the upper part of the stomach, creating a small pouch that restricts food intake and promotes early fullness. Unlike sleeve gastrectomy or gastric bypass, it is fully reversible and adjustable — but it requires consistent follow-up and management to be effective.

Dr Chun Guan Chong provides gastric band adjustments and long-term band management at multiple Melbourne locations, including Bayswater, Box Hill (Epworth), Heidelberg, and Williamstown.

How the Band Works

The band is connected to an access port — a small disc-shaped device placed just beneath the skin of your upper abdomen during surgery. By inserting a fine needle into this port, saline (saltwater) can be added or removed to change the tightness of the band.

• Adding saline — tightens the band → more restriction → smaller amounts of food needed to feel full
• Removing saline — loosens the band → less restriction → useful if the band is causing symptoms of being too tight

The optimal band fill creates a level of restriction where you feel satisfied after a small meal, without difficulty swallowing, reflux, or vomiting.

How Do I Know If I Need an Adjustment?

Signs the band may be too loose (needs tightening):

• Able to eat large portions without feeling any restriction
• Feeling hungry shortly after a small meal
• No sense of early fullness when eating
• Weight loss has stalled despite following dietary guidelines

Signs the band may be too tight (needs loosening):

• Difficulty swallowing even soft foods or liquids
• Food or fluid coming back up shortly after eating (regurgitation)
• Waking at night with reflux or acid regurgitation
• Chest discomfort or pain when eating
• Only able to tolerate liquids or very small amounts of soft food

If you cannot keep down fluids at all, seek urgent medical attention — this may indicate band slippage, which is a surgical emergency.

What Happens During an Adjustment?

A band adjustment is a straightforward clinic-based procedure. No anaesthesia is required and you can return to normal activities immediately afterwards.

1. Dr Chong locates your access port by feeling your upper abdomen
2. The skin over the port is cleaned with antiseptic solution
3. A fine needle is inserted through the skin into the port — you will feel light pressure, similar to a blood test
4. Saline is added or removed to achieve the desired level of restriction
5. You will be asked to sip some water to assess comfort and restriction before leaving
6. The procedure takes approximately 10–15 minutes in total

In some cases, particularly if the port is difficult to access, Dr Chong may use fluoroscopy (live X-ray guidance) to assist with the injection.

Eating Well with a Gastric Band

The gastric band works best when combined with good eating habits. Poor eating habits can cause symptoms, reduce effectiveness, and increase the risk of complications.

Eat slowly and chew thoroughly:

• Take small bites — approximately the size of a thumbnail
• Chew each mouthful 20–30 times until food is a smooth paste before swallowing
• Put your cutlery down between bites and allow 20–30 minutes for a meal

Portion sizes:

• The band works best with small, frequent meals
• Aim for 3 small meals per day (using a small side-plate sized portion)
• Avoid grazing throughout the day — this bypasses the band's restriction

Do not drink with meals:

• Drinking fluids during or immediately after eating washes food through the pouch, defeating the restriction effect and causing hunger sooner
• Wait at least 30 minutes after eating before drinking

Foods to avoid:

• Slider foods — soft, high-calorie foods that pass through the band without restriction: ice cream, chocolate, chips, biscuits, soft cheeses, and cake. These defeat the purpose of the band and contribute significant calories without producing fullness.
• Bread and doughy foods — can compact into a sticky mass and get stuck at the band, causing pain and vomiting.
• Fibrous or stringy foods — celery, asparagus, leek, pineapple, and citrus membranes can get caught at the band.
• Carbonated drinks — gas causes discomfort and may gradually stretch the stomach pouch above the band.

Recognising Complications

Band slippage:

The stomach can herniate upward through the band, creating an enlarged pouch above it. Symptoms include sudden onset of severe reflux, inability to swallow even fluids, persistent vomiting, or chest pain. This is a surgical emergency — seek immediate medical attention.

Band erosion:

In rare cases, the band can erode through the stomach wall. Symptoms may be subtle, such as a port site infection, gradual loss of restriction, or recurrent abdominal discomfort. Requires surgical management.

Port problems:

The access port can flip (making needle access difficult), develop a leak (causing gradual loss of saline and reduced restriction), or become infected. Most port issues can be corrected with a minor procedure.

Oesophageal dilation:

If the band is chronically over-filled or remains too tight for an extended period, the oesophagus can dilate (stretch) over time. This causes worsening reflux, regurgitation, and difficulty swallowing, and may require band removal or revision surgery.

Long-Term Band Management

The gastric band requires ongoing medical management for as long as it remains in place:

• Regular adjustments — frequency varies. Monthly adjustments are common in the first 1–2 years; less frequent thereafter.
• Annual blood tests — to monitor nutritional status, as some patients may develop deficiencies
• Monitoring for band-related complications — reflux, slippage, erosion
• Coordination with your surgeon if revision surgery or band removal is required

Dr Chong can provide band management regardless of where your original surgery was performed. Contact Knox General Practice or Medi Weight Loss to book.