How Is Achalasia Confirmed and Typed? Esophageal Manometry, Barium Swallow and Endoscopy

She had started ordering soup at restaurants. Not because she wanted soup, but because a mouthful of chicken had a way of sitting behind her breastbone like a stone, refusing to move until she stood up, walked to the restroom and waited. Water sometimes helped. Sometimes it came straight back up. Her acid-reducing tablets, taken faithfully for two years, had changed nothing, which is often the first honest clue that this was never reflux.

By the time someone with this story reaches a gastroenterology or surgical clinic, they usually have three questions: what is wrong, how will you prove it, and does the exact label matter. For suspected achalasia, the proof rests on one test above all others. Esophageal manometry for achalasia measures the pressures inside the swallowing tube directly, and it is the only study that can both confirm the diagnosis and sort it into a type.

The barium swallow and the endoscopy are not rivals to that test. They answer different questions, and a careful team wants all three answers before anyone talks about treatment.

What actually happens during esophageal manometry for achalasia

Esophageal manometry is a test that measures the pressure created by the muscles of the esophagus, the tube that carries food from the throat to the stomach. A thin, flexible catheter about the width of a phone-charging cable is passed through one nostril, down the back of the throat and into the stomach. Modern high-resolution catheters carry dozens of pressure sensors spaced closely along their length, so the whole tube is watched at once rather than at a few isolated points.

You are awake for this. A numbing gel or spray is applied inside the nose, and you sit upright while the catheter goes in, then usually lie on your side or recline. Once the catheter is positioned so that its sensors span the lower esophageal sphincter (the muscular valve between esophagus and stomach), the technologist asks you to swallow small sips of water, typically about ten of them, with a pause between each. Some laboratories add swallows in a seated position, rapid repeated swallows, or a small solid such as a piece of bread, because those challenges can unmask problems a single sip misses.

Each swallow paints a colored pressure map on the screen: warm colors for high pressure, cool colors for low. In a healthy esophagus the map shows a smooth wave sweeping downward, with the sphincter at the bottom opening briefly as the wave arrives. In achalasia, that bottom gate stays shut and the wave above it is either flattened, replaced by a uniform column of pressure, or broken into premature spasms.

The whole study usually takes around 30 minutes, according to the Mayo Clinic’s patient description of the procedure. The catheter comes out in a few seconds. Most people drive themselves home unless sedation was used, which is uncommon for this test.

Can manometry detect achalasia? What the pressure tracing shows

Yes, and it does so more reliably than any other single study. Achalasia is fundamentally a nerve problem: the inhibitory nerve cells in the wall of the lower esophagus and its sphincter are lost, so the sphincter cannot receive the signal to relax and the muscle above cannot coordinate a proper wave. Manometry measures exactly the two things that nerve loss changes.

The first is sphincter relaxation. Software calculates a value called the integrated relaxation pressure, or IRP, which is the lowest average pressure the sphincter reaches in the seconds after a swallow. An elevated IRP means the gate is not opening. The second is peristalsis, the coordinated squeezing wave. In achalasia that wave is absent in every swallow, replaced by pressurization of the whole tube, or replaced by early, uncoordinated contractions.

When both findings are present together, the pattern is diagnostic. This matters because symptoms alone are unreliable. Difficulty swallowing, regurgitation of undigested food, chest pain and weight loss can all occur in reflux disease, in a stricture from years of acid exposure, in eosinophilic esophagitis, and in cancer at the junction of esophagus and stomach. A plain endoscopy can look entirely normal in early achalasia, and a barium study can be equivocal when the esophagus has not yet stretched. The Cleveland Clinic and Mayo Clinic both describe manometry as the study that establishes the diagnosis for this reason.

One honest caveat: the numbers have cutoffs, and some people land in a gray zone. A sphincter that relaxes poorly while the wave above it still looks partly intact is labeled esophagogastric junction outflow obstruction rather than achalasia. That label is a prompt for more testing, not a final answer, and it is one place where the barium study and newer tools earn their keep.

Achalasia types explained: the Chicago Classification in plain language

The Chicago Classification is an internationally agreed rulebook, now in its fourth version, that tells laboratories how to read a high-resolution manometry study and which label to attach. It was built by motility specialists precisely so that a tracing read in one city would carry the same name in another. For achalasia it recognizes three types, all sharing the failed sphincter relaxation and all differing in what the body of the esophagus does.

Type	What the esophageal body does	Everyday picture	Typical clinical note
Type I (classic)	No contraction and no pressurization; the tube is quiet	A slack garden hose with a closed nozzle	Often a wider, more dilated esophagus on barium imaging
Type II	Uniform pressurization along the whole tube in at least 20% of swallows	Squeezing a sealed water balloon	The most common type in most series
Type III (spastic)	Premature, uncoordinated contractions in at least 20% of swallows	A hose that kinks and spasms rather than flows	Chest pain is a more prominent complaint

The 20% threshold comes directly from the Chicago Classification version 4.0 criteria published by Yadlapati and colleagues. It sounds arbitrary, but the point is to require a consistent pattern across swallows rather than a single odd one.

Why bother typing at all? Because the three patterns behave differently. Type I often reflects a longer-standing, more stretched-out esophagus. Type II tends to be the pattern that responds most predictably to opening the sphincter, whatever method is used. Type III is the outlier: the spasm extends up the esophageal body, so treatments aimed only at the sphincter may leave the upper spasm untouched. Your team reads the type as a hint about where the problem lives, not as a verdict about how you will do.

Why the barium swallow still matters when manometry is the gold standard

A barium swallow is an X-ray study in which you drink a thick, chalky liquid that shows up white on the images, so the radiologist can watch it travel down. For suspected achalasia the study is usually done in a timed fashion: you drink a set volume, then stand for pictures at fixed intervals over several minutes. The question is not only what shape the esophagus makes, but how much barium is still sitting there when the clock runs out.

The classic image is the one every trainee learns: a dilated esophagus that tapers smoothly to a narrow point at the bottom, the so-called bird’s beak, where the tight sphincter refuses to let the column through. Above it, retained barium may show an air-fluid level like the surface of a glass of water. In very long-standing disease the esophagus can widen dramatically and curve into a sigmoid shape.

Here is why a team orders it even when manometry has already spoken. First, manometry measures pressure, not emptying. Two people with identical pressure readings can have very different amounts of retained liquid, and emptying is what actually determines whether food goes down. Second, the barium study gives a baseline. After treatment, the same timed protocol can be repeated, and a shrinking barium column is one of the more objective ways to judge whether the sphincter has genuinely opened, especially in people whose symptoms have quietly adapted over years.

Third, when manometry lands in the gray zone described earlier, a clearly abnormal timed barium study tips the balance toward treating as achalasia, while a normal one argues for watching. The Mayo Clinic lists the barium X-ray alongside manometry and endoscopy as the standard trio, and most surgical and gastroenterology teams follow that pattern.

What endoscopy is looking for, and what it is ruling out

Upper endoscopy is a camera examination of the esophagus, stomach and first part of the small intestine through a flexible tube passed by mouth, almost always under sedation. It is often the first test people receive because swallowing difficulty is common and endoscopy is widely available. Its role in achalasia, though, is less about confirming and more about excluding.

The condition it must exclude is called pseudoachalasia: a cancer at the junction of esophagus and stomach, or occasionally a tumor pressing from outside, that tightens the sphincter and produces a manometry tracing that can look identical to true achalasia. The suspicion rises when symptoms have arrived quickly, when weight loss has been rapid, or when the person is older than the usual age of onset. The NHS notes that achalasia most often begins between the ages of 25 and 60, so a new diagnosis well outside that range earns a careful look at the junction, sometimes with biopsies and sometimes with additional imaging.

Endoscopy also documents the consequences of the disease. The endoscopist may find retained food or frothy saliva, a dilated and floppy esophagus, and a sphincter that gives a characteristic pop as the scope pushes through. Long-standing stasis can irritate the lining, and yeast overgrowth is not unusual. All of this shapes practical planning: a scope full of food means the next test needs a longer fast, and a sigmoid, tortuous esophagus changes what treatment options are realistic.

What endoscopy cannot do is settle the type, and in early disease it may show nothing at all. A normal-looking scope in someone with convincing symptoms is a reason to proceed to manometry, not a reason to stop.

Who is usually referred for esophageal manometry for achalasia, and who is asked to wait

The typical candidate has trouble swallowing both solids and liquids from the start. That detail matters because a mechanical narrowing such as a scar or tumor usually blocks solids first and liquids only later, whereas a motor problem like achalasia struggles with both. Regurgitation of undigested food hours after a meal, waking with a cough or a wet pillow, unexplained weight loss, and chest pain that does not track with exertion round out the picture. Reflux symptoms that never respond to acid suppression are a common back door into the same referral.

Manometry is also requested when an endoscopy has been unrevealing, when a barium study looks suspicious but not definitive, and before any anti-reflux surgery, because wrapping the stomach around a sphincter that cannot relax would make swallowing far worse. It is used after achalasia treatment too, when symptoms return and the team needs to know whether the sphincter has tightened again.

Some people are asked to wait or to complete other steps first. Anyone with a swollen, food-filled esophagus on endoscopy may need a prolonged liquid diet and a repeat scope so the catheter can be placed safely and the readings are not distorted by debris. Certain medicines that alter esophageal muscle tone, including some used for blood pressure and some for pain, are commonly paused before the study; the ordering clinician decides which and for how long. People with severe nasal blockage, recent facial or nasal surgery, known swallowing paralysis from a stroke, or an esophageal varix problem are assessed individually, and occasionally the catheter is placed under endoscopic guidance instead.

Achalasia itself is uncommon, with the Cleveland Clinic citing roughly one new diagnosis per 100,000 people each year. That rarity is one reason the average person waits years and sees several clinicians before the test is ordered.

How painful is esophageal manometry? An honest account

Most people describe it as uncomfortable rather than painful, and the discomfort is front-loaded. The moment the catheter turns the corner at the back of the nose and touches the throat is the hardest part: a strong urge to gag, a few seconds of watering eyes, and a feeling of needing to swallow something that will not go. Technologists coach you to sip water and swallow on cue during that stretch, and the tube is past the sensitive area within a few seconds. MedlinePlus describes a gagging sensation and mild nasal irritation as the expected experience, with pain being unusual.

Once the catheter is in place, the sensation settles into an awareness of something at the back of the throat, similar to a hair you cannot clear. Breathing through the mouth is normal. Talking is possible but discouraged because it disturbs the readings. The swallows themselves, ten or so small sips of water, feel ordinary; the strange part is being told when to swallow and when to hold still, since the software needs quiet baseline periods between them.

People with achalasia sometimes have a particular experience: the water sits above the closed sphincter and produces a brief pressure or burning behind the breastbone, the same feeling they get with meals. That is the disease, not the catheter, and it usually eases within a minute.

Afterward, a scratchy throat and a sniffle are common for a few hours. A small nosebleed can happen and stops on its own. Sedation is rarely used because it changes muscle tone and can blur the very pressures being measured, which is worth knowing in advance: this is a test you do awake, and the reward for that is a reading your team can trust.

Preparing for the test and what the following days look like

Preparation is simple but not optional. You will be asked to fast, typically for several hours before the study; MedlinePlus advises no food or drink for a set period before the test as instructed by the ordering team. People with achalasia are often told to fast longer, and to stick to clear liquids for a day or more beforehand, because food that has not left the esophagus can block the catheter’s sensors or be regurgitated during placement. Wear a shirt with buttons or a loose neckline; the catheter is taped to your nose and cheek during the study.

Bring a complete list of medicines. Some drug classes that relax smooth muscle, including nitrates and calcium channel blockers, and some sedatives and opioid pain medicines, change esophageal pressures and are commonly held before the study. Never stop anything on your own; the clinician who ordered the test will tell you what to pause and when to restart.

The day of the test is a short one. Numbing gel, catheter in, swallows, catheter out, and you are on your way with no restrictions on driving or eating unless sedation was used. The throat may feel raw through the evening, and cool liquids help. Some laboratories combine manometry with a 24-hour acid monitoring probe left in place; if that applies to you, the following day involves keeping a symptom diary with a small recorder clipped to your belt.

Results take longer than the test. The colored tracing is reviewed swallow by swallow and scored against the Chicago Classification, then read in context alongside the barium study and endoscopy. Expect a report within days to a couple of weeks depending on the laboratory, and expect the follow-up conversation to be the one where the word achalasia is either confirmed, typed, or set aside.

Is there an alternative to esophageal manometry?

There is no equivalent replacement, but there are supporting tools, and the honest way to answer is to separate the two.

The timed barium swallow is the closest thing to a stand-in. When manometry is impossible, because the catheter cannot be placed, because the person cannot tolerate it, or because a hugely dilated esophagus makes readings uninterpretable, a barium study showing a bird’s beak with markedly delayed emptying, together with an endoscopy that excludes tumor, can be enough for an experienced team to proceed. What the barium study cannot do is type the disease or catch early achalasia in an esophagus that has not yet stretched.

The functional lumen imaging probe, often shortened to FLIP, is a newer instrument. It is a balloon catheter passed during a sedated endoscopy that measures how wide the sphincter opens as the balloon is gently filled, reporting the opening as a distensibility value. It is useful in the gray-zone results described earlier, and it has the advantage of being done while you are already asleep for the scope. Its limitation is availability; many centers do not yet have it, and the Chicago Classification treats it as a supportive rather than a primary test.

A plain endoscopy alone is not an alternative. It misses early disease and cannot measure pressure. Symptom questionnaires, including the Eckardt score that clinicians use to track weight loss, swallowing difficulty, regurgitation and chest pain, are valuable for following a person over time but do not diagnose anything on their own.

For someone dreading the nasal catheter, the practical alternatives are a slower, well-coached placement, a topical anesthetic done thoroughly, and, in selected cases, endoscopic guidance of the catheter into position. Most people who feared the test report afterward that the anticipation was worse than the half hour itself.

How the achalasia type changes the treatment conversation

Every established treatment for achalasia does the same fundamental thing: it lowers the pressure of the sphincter that will not relax. Nothing restores the lost nerve cells, which is why the field speaks of managing or controlling the condition rather than reversing it. The choices differ in how they open the gate and, crucially, in how far up the esophagus they can reach, and that is where the type earns its place in the discussion.

Pneumatic dilation stretches the sphincter with a balloon inflated under X-ray guidance during a sedated endoscopy, tearing some of the muscle fibers. Laparoscopic Heller myotomy is a keyhole operation in which the surgeon cuts the muscle of the sphincter and the lowest part of the esophagus from the outside, usually adding a partial wrap of stomach to limit the reflux that follows. Peroral endoscopic myotomy, POEM, cuts the same muscle from the inside through a tunnel made in the lining, with no external incision. Botulinum toxin injection into the sphincter temporarily weakens the muscle; its effect wears off over months, so it is generally reserved for people who cannot safely undergo the other options.

Type II achalasia, with the esophageal body simply pressurizing above the closed gate, is the pattern in which all three definitive approaches have shown their most consistent results in the published literature. Type I, especially with a very dilated esophagus, often steers teams toward myotomy over repeated dilations. Type III is where the type most changes the plan: because the spasm extends into the esophageal body, an endoscopic myotomy that can be extended higher up the tube is often favored, since a balloon or a standard surgical cut reaches only the bottom few centimeters.

None of this is a formula. Age, other health conditions, prior treatments, esophageal shape and personal priorities all weigh in, and the choice is made with the treating team.

What are the newest treatments for achalasia?

The most significant development of the past decade is peroral endoscopic myotomy, which moved the muscle-cutting operation from the surgeon’s laparoscope to the endoscopist’s scope. Because it works from inside the esophagus, it leaves no abdominal incisions, and because the tunnel can be extended upward, it allows a longer cut for type III disease than a conventional operation can safely deliver. Its recognized trade-off is reflux: without the partial stomach wrap that accompanies a surgical myotomy, more people develop acid exposure afterward and some need long-term acid suppression. Guideline bodies now place it alongside surgical myotomy and pneumatic dilation as a first-line option rather than an experiment.

On the diagnostic side, the functional lumen imaging probe described earlier is increasingly used not only to clarify borderline manometry but also during myotomy itself, to confirm at the table that the sphincter has opened adequately before the procedure ends. That real-time feedback is new, and its long-term value is still being measured.

Refinements are also appearing in older techniques: graded balloon dilation protocols that start small and step up only if needed, and adjustable or tailored myotomy lengths matched to the manometry pattern. Research into why the nerve cells die, including autoimmune and viral hypotheses, continues, but there is no treatment yet that targets the underlying nerve loss, and any therapy claiming to regrow those nerves should be regarded as unproven.

Medicines have a limited role. Nitrates and calcium channel blockers relax smooth muscle and can briefly ease the sphincter, but their effect is modest, wears off quickly and often brings headaches or low blood pressure, so they are typically a bridge rather than a plan. The Mayo Clinic describes them as reserved for people who cannot undergo the definitive options. Whether any of these belong in your care is a decision for your treating team.

What people often get wrong about achalasia testing

Achalasia is a kind of severe reflux. It is closer to the opposite. In reflux the sphincter is too loose and lets acid up; in achalasia it is too tight and lets nothing down. The confusion arises because both cause chest burning and regurgitation, and because stale, fermenting food sitting in the esophagus can taste sour. Acid-suppressing medicines will not open a sphincter, which is why years of them change nothing.

If the endoscopy was normal, the esophagus is fine. Early achalasia routinely produces a normal-looking scope. The camera sees the lining, not the muscle’s behavior, and cannot measure whether a sphincter relaxes. A normal endoscopy in someone with convincing symptoms is a reason to move to manometry.

Manometry is unbearable. The nasal passage and gag are genuinely unpleasant for a matter of seconds. The remaining half hour is tedious rather than painful, and MedlinePlus lists throat irritation and a runny nose as the usual aftermath.

The type tells you how you will do. Type describes a pattern on a pressure map. It informs which approach a team leans toward, particularly for type III, but individual outcomes depend on esophageal shape, prior treatments, general health and follow-up. No type carries a guaranteed result, good or bad.

Once treated, achalasia is over. The nerve loss is permanent. Treatment opens the gate; it does not restore the wave. Symptoms can return over years, reflux may need attention, and periodic surveillance of the esophagus is part of long-term care because chronic stasis carries a small increase in cancer risk over decades, as the NHS notes. Staying connected with a team matters as much after treatment as before.

You can diagnose it from symptoms. You cannot, and neither can a clinician. The overlap with strictures, eosinophilic esophagitis and tumors at the junction is too great, and the last of those is exactly what the testing sequence exists to catch.

Questions to ask your care team

A good consultation leaves you knowing what each test found and what it did not. These questions tend to draw out the answers that matter.

• Did the manometry meet the Chicago Classification criteria for achalasia, or did it fall into a borderline category such as outflow obstruction? If borderline, what will settle it?
• Which type did the tracing show, and how did that shape the options you are recommending for me?
• How much barium was retained on the timed study, and will you repeat the same study after treatment to compare?
• Was the endoscopy able to exclude a tumor at the junction? Were biopsies taken, and do you want any additional imaging given my age or how quickly this came on?
• How dilated is my esophagus, and does its shape limit any of the treatment choices?
• Which of my current medicines could be affecting these results or my symptoms, and who decides about pausing them?
• For each option you are proposing, what is the specific risk of reflux afterward, and how would we monitor for it?
• If symptoms return in a few years, what would the next step usually be?
• What long-term surveillance do you recommend for the esophagus, and how often?
• Is there anything about my swallowing, weight or nutrition that needs attention now, before treatment is arranged?

Write the answers down or bring someone who will. The type, the retained barium volume and the esophageal diameter are numbers you will want to recall at future appointments, because they are the baseline everything later is measured against. If any answer is uncertain, ask what the evidence actually shows; a team that can say where the data are thin is one you can trust with the rest.

When to call your doctor

Most of the testing described here is low-risk, and most of the discomfort fades within a day. A few situations, though, need prompt contact with the team rather than waiting for the next appointment.

After manometry, call the same day if you have chest pain that is more than a mild ache, if you vomit blood or material that looks like coffee grounds, if a nosebleed does not stop with gentle pressure after several minutes, or if you develop fever, neck pain or difficulty breathing. Perforation of the esophagus is very rare with a soft manometry catheter, but it is the one complication that cannot be ignored, and worsening chest or neck pain with fever is how it announces itself.

After a barium swallow, contact your team if you have not passed the barium in your stool within a couple of days, if you become constipated and unable to pass anything, or if abdominal pain develops.

Whether or not you have had any test yet, seek same-day care if you cannot swallow your own saliva, if something feels firmly lodged and will not pass, if you are coughing or choking on regurgitated food at night, or if you develop a new cough with fever, which can signal food or fluid entering the lungs. Rapid unintended weight loss, black or bloody stools, and vomiting blood are red flags at any stage and should not wait for a routine visit.

Chest pain in achalasia is common and usually comes from the esophagus, but it can be impossible to distinguish from heart pain by feel alone. Pain that spreads to the arm or jaw, comes on with exertion, or arrives with sweating, breathlessness or faintness is an emergency until proven otherwise.

These lists are prompts, not a diagnostic tool. Your treating team knows your findings and your history, and every decision about testing, treatment and timing rests with them.

Frequently asked questions

How painful is esophageal manometry?

It is uncomfortable for a few seconds and rarely painful. The catheter passing through the nose and past the back of the throat triggers gagging and watering eyes, then settles into an awareness of something in the throat for the rest of the roughly half-hour study. Numbing gel eases the nasal passage. Afterward a sore throat and runny nose are common and short-lived; persistent chest pain or fever is not expected and should be reported.

Can manometry detect achalasia in its early stages?

Yes, and this is one of its strengths. Manometry measures sphincter relaxation and the coordination of contractions directly, so it can show the characteristic pattern before the esophagus has stretched enough to look abnormal on a barium study or endoscopy. In early disease the endoscopy is often normal, which is why a normal scope in someone with convincing swallowing symptoms should lead to manometry rather than reassurance.

Is there an alternative to esophageal manometry?

There is no equivalent replacement, but a timed barium swallow showing a bird’s-beak narrowing with markedly delayed emptying, plus an endoscopy that excludes a tumor, can support the diagnosis when manometry cannot be done. The functional lumen imaging probe, a balloon device used during sedated endoscopy, helps clarify borderline results in centers that have it. None of these can sort achalasia into types the way manometry does.

What is high resolution manometry achalasia testing, and how is it different from older manometry?

High-resolution manometry uses a catheter with dozens of closely spaced pressure sensors and displays the result as a color pressure map of the entire esophagus during each swallow. Older catheters had a handful of sensors and produced line tracings that were harder to interpret. The high-resolution map is what makes the Chicago Classification possible, because the three achalasia types are distinguished by patterns across the whole esophageal body.

What does a bird's beak on a barium swallow mean?

It describes the appearance of a widened esophagus that tapers smoothly to a narrow point at the lower sphincter, resembling a bird’s beak in profile. It is the classic radiographic sign of achalasia and reflects barium pooling above a sphincter that will not open. A smooth taper favors achalasia, whereas an irregular or shouldered narrowing raises concern for a stricture or tumor and prompts endoscopy with biopsies.

Which achalasia type is most common?

Type II, in which the esophageal body pressurizes uniformly above the closed sphincter, is the most frequently reported pattern in published series. Type I, with a quiet, non-contracting esophagus, is often associated with longer-standing disease and a more dilated tube. Type III, the spastic form, is the least common and is more often accompanied by chest pain. Exact proportions vary between centers and populations.

Do I need all three tests, or is manometry enough?

Most teams want all three because they answer different questions. Manometry confirms and types the disorder, the timed barium swallow measures how well the esophagus empties and provides a baseline for later comparison, and endoscopy excludes a tumor at the junction that can mimic achalasia exactly. Skipping endoscopy is the step most experts caution against, particularly when symptoms began quickly or weight loss has been marked.

What are the newest treatments for achalasia?

Peroral endoscopic myotomy, which cuts the sphincter muscle from inside the esophagus without external incisions, is the most significant recent addition and now sits alongside surgical myotomy and pneumatic dilation as a standard option. Real-time balloon measurement of sphincter opening during procedures is also emerging. No treatment yet restores the lost nerve cells, so any therapy promising to do so should be treated as unproven.

Can achalasia be diagnosed from symptoms alone?

No. Difficulty swallowing solids and liquids, regurgitation of undigested food, chest pain and weight loss are characteristic, but the same complaints occur with strictures, eosinophilic esophagitis, reflux disease and cancers at the esophagogastric junction. Because one of those mimics is a tumor, clinicians rely on objective testing rather than symptom patterns, and a scoring tool like the Eckardt score is used to track progress, not to diagnose.

How do I prepare for esophageal manometry?

You will be asked to fast for a set number of hours, longer if your esophagus tends to retain food, and sometimes to keep to clear liquids the day before. Bring a full medicine list; certain drugs that relax smooth muscle or sedate are often paused beforehand, but only on your clinician’s instruction. Wear a loose-necked shirt, plan on about half an hour, and expect to eat and drive normally afterward unless told otherwise.

References

• Cleveland Clinic: Achalasia
• MedlinePlus: Esophageal manometry
• NHS: Achalasia

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.