Post-bariatric reflux
Reflux and hiatus hernia after bariatric surgery
Reflux after sleeve gastrectomy is uncommon overall. When it does occur and surgery is needed, Dr Stephen Watson — specialist general surgeon (FRACS) — is well placed to help. He performs both bariatric and hernia surgery, which is rare among Western Australian surgeons. Every case is different; this page is a starting point.
Why am I getting reflux years after my weight loss surgery?
Significant reflux after sleeve gastrectomy is uncommon. The majority of patients have no reflux issues in the years after their sleeve. For the smaller group who do, the combination of a higher-pressure tubular stomach pouch, a hiatus that was already slightly weak or has stretched over time, and gradual changes in body weight can produce a tendency for stomach contents to be pushed upward into the oesophagus.
When reflux does occur it can produce heartburn, regurgitation, an unpleasant taste, sleep disruption, and sometimes cough or sore throat. Most patients in this situation are controlled with simple lifestyle measures and medication. A small number need surgical assessment — and that is what this page covers.
BARF — Bariatric And Reflux Forum syndrome
BARF (Bariatric And Reflux Forum) is a shorthand used by some surgeons for the cluster of symptoms that can develop years after sleeve gastrectomy or Roux-en-Y gastric bypass: reflux, regurgitation, bloating, abdominal pain, food intolerance, and difficulty swallowing. It is not a single diagnosis but a useful umbrella term for the typical post-bariatric reflux presentation. Treatment is tailored to the specific findings on investigation rather than to the label.
Why bariatric surgery can sometimes lead to hiatus hernia and reflux
After sleeve gastrectomy, the stomach is reshaped into a long, narrow tube. Most patients do well long-term. In a small number, the higher pressure inside the new pouch — combined with a pre-existing or developing weakness at the diaphragmatic hiatus — can allow the upper part of the stomach to move upward and produce reflux. The anti-reflux mechanism at the junction between oesophagus and stomach can also be weakened over time. The result is reflux that medication may only partially control.
After Roux-en-Y gastric bypass, severe acid reflux is less common because the small upper stomach pouch produces little acid. Bile reflux can occasionally occur, however, and a hiatus hernia alongside a bypass can still cause symptoms — this requires its own assessment.
How is it diagnosed?
Investigations after bariatric surgery typically include gastroscopy (an endoscope passed into the stomach under sedation, looking for hiatus hernia, reflux changes, and the condition of the sleeve or bypass), barium swallow (X-ray after swallowing contrast, showing the shape of the sleeve and any reflux), oesophageal manometry (measuring the muscle function of the oesophagus, important when planning a repair or fundoplication), and 24-hour pH monitoring (measuring how much acid actually reaches the lower oesophagus). The right combination depends on your symptoms and surgical history.
Treatment options
Medical management
Lifestyle adjustments — smaller meals, not eating late, raising the head of the bed, weight control where possible — plus a proton pump inhibitor (PPI) control mild to moderate reflux in many patients. When this works well, surgery is not needed.
Hiatus hernia repair with crural closure
For patients with a clear hiatus hernia and reasonably preserved sleeve anatomy, laparoscopic hiatus hernia repair — pulling the stomach back into the abdomen and narrowing the diaphragmatic opening — is often the right operation. See the hiatus hernia repair page for more.
Mesh reinforcement
For very large or recurrent hiatus hernias, biological or synthetic mesh may be used to reinforce the repair. Mesh use at the hiatus is a careful decision because of proximity to the oesophagus.
Conversion of sleeve to Roux-en-Y bypass
For patients with severe long-standing reflux, a distorted sleeve, significant acid damage to the lower oesophagus, or recurrent reflux despite previous hiatus hernia repair, conversion of the sleeve to a gastric bypass is the most durable solution. This removes the high-pressure stomach pouch that drives the reflux. It is a more complex operation than the original sleeve and requires careful assessment.
Bariatric context — Dr Watson's other practice
Dr Watson's bariatric work — gastric sleeve, gastric bypass, and revisional bariatric surgery — is covered on his existing site, lapsurgery.com.au. If you would like background on the bariatric operations themselves, the following deep links are useful starting points:
- Gastric sleeve surgery — lapsurgery.com.au [TO CONFIRM exact URL]
- Gastric bypass (Roux-en-Y) — lapsurgery.com.au [TO CONFIRM exact URL]
- Revisional bariatric surgery — lapsurgery.com.au [TO CONFIRM exact URL]
The two sites are run by Dr Watson. Visiting lapsurgery.com.au gives you the bariatric context; this site (wahernia.com.au) covers the hernia and reflux side.
Why Dr Watson
Most surgeons in Western Australia perform either hernia surgery or bariatric surgery — Dr Watson performs both. For post-bariatric reflux patients this matters, because the choice between repairing the hiatus hernia, reinforcing the repair with mesh, or converting the sleeve to a bypass is a bariatric decision and a hernia decision at the same time. Dr Watson can talk you through the full range of options at a single consultation, with a single surgeon, rather than being passed between specialties.
He is a Fellow of the Royal Australasian College of Surgeons (FRACS) and a member of the Australian and New Zealand Hernia Society. He has practised general and laparoscopic surgery in Western Australia since 1999.
What to expect
Most post-bariatric reflux assessments follow a similar pattern. A first consultation in person (South Perth or a regional visit) or by telehealth, where the history, symptoms, and prior records are reviewed and the right investigations arranged. A second consultation once investigations are complete, where the findings, realistic options, expected outcomes, and risks are discussed in detail. If surgery is the agreed path, a date is booked at one of Hollywood Private Hospital in Nedlands, where Dr Watson operates.
Risks specific to revision surgery
All surgery carries risks. Revision surgery — re-operating in territory that has been operated on before — carries higher risks than primary surgery because of scarring, distorted anatomy, and the difficulty of separating structures that have healed together. For revision after bariatric surgery, the specific risks include leak from the staple line of the revised stomach, bleeding, infection, slow gastric emptying, stricture (narrowing) at the junction, recurrence of reflux, and the general risks of any complex laparoscopic operation. Conversion to open surgery is occasionally needed.
Dr Watson will discuss the realistic risks for your case as part of obtaining informed consent. Any surgical or invasive procedure carries risks — before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.
Recovery and weight management after revision
Recovery from revisional bariatric and reflux surgery is generally slower than recovery from a primary bariatric operation. Most patients stay in hospital for one to several nights and progress through clear fluids, full fluids, and a soft diet over several weeks. Return to most normal activity is expected over four to six weeks. These are general guidelines, not guarantees.
Long-term weight outcomes depend on lifestyle as much as on the operation, particularly for sleeve-to-bypass conversion. Dietetic review is part of the standard pathway after revisional surgery.
Common questions
How common is reflux after sleeve gastrectomy?
The risk of significant reflux after sleeve gastrectomy is actually quite low. Many patients have no reflux issues at all in the years after their sleeve. When reflux does occur, it can often be controlled with simple measures and medication. A small group of patients have reflux severe enough that surgery becomes the right option — and for that group, Dr Watson is well placed to discuss what is possible.
Will my reflux resolve with hiatus hernia repair alone, or do I need a sleeve-to-bypass conversion?
It depends — this is a case-by-case discussion. For some patients with a clear hiatus hernia, hiatus repair is the right operation. For others, conversion of the sleeve to a Roux-en-Y gastric bypass is the more durable solution, but this is uncommon. The decision rests on gastroscopy findings, manometry, imaging, your symptoms, and your weight history. Dr Watson can talk you through the realistic options.
Will I lose more weight after revision?
Most patients do lose additional weight after conversion of a sleeve to a bypass, but the additional weight loss is generally modest compared with the original bariatric operation. Revision is undertaken primarily to control reflux, not as a second round of weight-loss surgery. Long-term weight outcomes depend heavily on lifestyle as well as surgery, and are discussed at consultation.
Can I have the surgery if my BMI has crept back up?
Generally yes. Weight regain after bariatric surgery is common and does not by itself disqualify you from revision surgery. In some cases moderate weight loss before revision is recommended to reduce surgical risk and improve outcomes. Dr Watson will discuss whether pre-operative weight loss makes sense in your case.
What if my original bariatric surgery was done overseas?
Bring whatever records you have — the type of operation, any operative report, follow-up imaging, and previous gastroscopies. Where records are incomplete, a fresh gastroscopy and imaging are usually arranged before consultation so the anatomy is clear. Dr Watson sees patients whose original surgery was performed overseas regularly.
If you've had bariatric surgery and are struggling with reflux, book a consultation with Dr Watson
Request a consultation Phone (08) 6311 7578
Or visit lapsurgery.com.au for background on Dr Watson's bariatric practice.