A 49-year-old woman came to us after two years of trouble that centred on her chest and her throat. Swallowing had become difficult. There was a constant pressure behind her breastbone. And at night she would bring food back up, an unpleasant regurgitation that disturbed her sleep. The diagnosis she had been given was the obvious one for symptoms like these: GERD, acid reflux. She was put on a high-dose proton pump inhibitor, the standard acid-suppressing medication, and told to give it time.
Twelve months later, the medication had done nothing. Her symptoms were unchanged. A gastroscopy, a camera passed down to inspect her oesophagus and stomach, had come back completely normal, which everyone took as reassuring. So the plan was to push the same treatment harder and to confirm she did not have the H. pylori bacterium, which was duly excluded.
But step back and look at the shape of this. Two of the most important facts in her case were being treated as background when they were in fact the whole story. The first was that a full year of strong reflux medication had produced no effect at all, which is a strange way for genuine reflux to behave. The second was that her main problem was difficulty swallowing, and difficulty swallowing is not really a reflux symptom. It is an alarm symptom in its own right.
If you have been treated for reflux but the medication simply is not working, and your real trouble is difficulty getting food down, that combination deserves a different kind of investigation, not just a higher dose.
Swallowing trouble that comes from how the oesophagus moves, rather than from acid, tends to look distinct from ordinary reflux:
- Difficulty swallowing both liquids and solids, rather than heartburn being the main complaint
- A sensation of food sticking behind the breastbone, often needing water or certain manoeuvres to wash it down
- Regurgitation of undigested, bland food and saliva, frequently at night, rather than the sour, acidic taste of reflux
- Pressure or pain behind the breastbone during or after eating
- Eating more slowly over time, and sometimes losing weight
- No response to acid-suppressing reflux medication, even at high doses
That last feature is the loudest of all. Acid medication treats acid. If the problem is not acid, no dose will fix it.
What the first opinion concluded
Her first assessment came from gastroenterology, which diagnosed GERD and responded by escalating the PPI and ruling out H. pylori.
For most patients with reflux symptoms, a PPI is the right first step, and reflux is common enough that starting there is sensible. The initial approach was not unreasonable.
The difficulty lay in how the normal gastroscopy was interpreted. A normal result felt like good news, but it was the answer to a different question than the one her symptoms were asking. A gastroscopy inspects the structure and lining of the oesophagus. It can find inflammation, ulcers, narrowings and growths. What it does not do is measure how the oesophagus actually moves, and a disorder of movement can leave the structure looking perfectly normal, especially early on. Her normal scan did not mean nothing was wrong. It meant the test that had been done could not see the kind of problem she had. A normal result on the wrong test is not the same as reassurance.
The second opinion
She was referred for a medical second opinion, and this time the investigation matched the symptom. Rather than repeat the camera, they tested how her oesophagus functioned, using oesophageal manometry, which measures the pressure and coordination of the swallowing muscles, alongside pH monitoring.
The result was clear and quite different from reflux. She had achalasia, type II, a motility disorder in which the muscular valve at the bottom of the oesophagus fails to relax, while the oesophagus itself loses its ability to push food downward. Food and liquid therefore struggle to pass into the stomach, backing up instead. It explained all of it: the difficulty swallowing, the pressure, the regurgitation of undigested food at night, and the total indifference to acid medication. It had never been reflux.
Achalasia has a definitive treatment. She underwent a laparoscopic Heller myotomy, a keyhole operation that carefully divides the tight muscle of that lower valve so food can pass freely again. After surgery she was free of symptoms, and off medication entirely.
Why this case matters
The lesson is precise and easy to carry.
Not every swallowing problem is reflux, and a normal gastroscopy does not rule out a motility disorder. The scan answers a question about structure, not about movement.
A test only tells you what it is designed to detect. When a normal result is read as proof that nothing is wrong, rather than as proof that this particular test found nothing, the search can stop in exactly the wrong place. Good communication in healthcare means being clear with a patient about what a test can and cannot see, and treating a year of failed treatment as a signal to reconsider the diagnosis rather than to repeat it. Her difficulty swallowing was the symptom pointing at the right test all along.
A word of balance
This is not a suggestion that reflux is usually misdiagnosed, because GERD is genuinely common and PPIs help the great majority of people who have it. Achalasia is comparatively rare, and not every case of reflux needs a motility study. The narrow, practical point is about the specific picture she presented: genuine difficulty swallowing, regurgitation of undigested food, a normal endoscopy and no response to a full course of acid suppression. That combination is exactly the one that should prompt a test of how the oesophagus moves, rather than another round of the treatment that already failed.
A medical second opinion is especially worth seeking when:
- Your main problem is difficulty swallowing, not just heartburn, and it is getting worse
- A full course of reflux medication has not helped, and the plan is simply more of it
- Your endoscopy was normal, but no test has measured how your oesophagus actually moves
- You regurgitate undigested food, especially at night, rather than sour acid
Which leaves the question this case puts to any normal test result: did the test actually rule out the problem, or did it simply fail to look for the kind of problem you have?
This is the kind of impasse CW1 is built to resolve, helping patients secure a medical second opinion when a treatment keeps failing, and strengthening the communication in healthcare that distinguishes a reassuring result from the wrong test.
Note: this is one case rather than medical advice. Persistent difficulty swallowing always deserves prompt evaluation, and the right next step is a careful conversation with a gastroenterologist.