Post-bariatric reflux
Reflux and hiatus hernia after bariatric surgery
If you've had a gastric sleeve or bypass and now have reflux, you're in the right place. Approximately 1 in 5 of Dr Watson's hernia patients have had previous bariatric surgery — he is one of very few surgeons in WA who performs both.
Why am I getting reflux years after my weight loss surgery?
This is one of the most common questions Dr Watson is asked in consultation. Reflux developing or worsening in the years after a bariatric operation — particularly a sleeve gastrectomy — is a recognised pattern, not bad luck. The combination of a high-pressure tubular stomach pouch, a hiatus that was always slightly weak (or has stretched over time), and gradual changes in body weight and diaphragm function add up to a strong tendency for stomach acid to be pushed upward into the oesophagus.
The result is heartburn, regurgitation, an unpleasant taste, sleep disruption, and sometimes cough or sore throat. For many patients the symptoms emerge years after their original operation, which can be frustrating when the bariatric surgery is otherwise considered a success.
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 lead to hiatus hernia and reflux
After sleeve gastrectomy, the stomach is reshaped into a long, narrow tube. The pressure inside this new pouch is higher than in the original stomach. Over months and years, that elevated pressure can pull the upper part of the stomach upward through the diaphragmatic hiatus — creating or worsening a hiatus hernia. The anti-reflux mechanism at the junction between oesophagus and stomach is also commonly weakened by the original sleeve operation. The end 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 the Perth private hospitals — Hollywood Private, St John of God Murdoch, St John of God Subiaco, The Mount, or Bethesda.
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?
Reflux develops or worsens in a significant minority of patients after sleeve gastrectomy. Estimates vary across published studies but symptoms severe enough to require ongoing treatment occur in around one in three to one in five patients over time. Many patients had mild reflux that worsens after the sleeve, and others develop reflux for the first time. New or worsening reflux years after a sleeve is one of the most common reasons Dr Watson sees post-bariatric patients.
Will my reflux resolve with hiatus hernia repair alone, or do I need a sleeve-to-bypass conversion?
Depends. Patients with a clear hiatus hernia and good preservation of the sleeve shape often do well with hiatus hernia repair alone. Patients with severe long-standing reflux, a distorted sleeve, or evidence of significant acid damage may benefit more from conversion of the sleeve to a Roux-en-Y gastric bypass — which removes the high-pressure stomach pouch that drives reflux. The decision rests on gastroscopy findings, manometry, imaging, and your weight history. Dr Watson can advise across both 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.