Achalasia

Symptoms and Risk Factors

Achalasia Symptoms

Achalasia is a rare, chronic disorder affecting the esophagus, characterized by the failure of the lower esophageal muscle to relax and a loss of muscle coordination. Recognizing the early, often gradual, symptoms is vital for diagnosis. Understanding the associated risk factors, though largely non-modifiable, helps patients manage their health and seek timely intervention. The main symptoms include progressive difficulty swallowing, regurgitation of food, and chest pain.

Common Warning Signs of Achalasia

The symptoms of achalasia usually develop slowly and worsen over months or even years. The primary feature is that the difficulty swallowing affects both solids and liquids almost equally.

• Progressive Dysphagia: Difficulty or discomfort when swallowing food or liquids. This is the most common and defining symptom, often feeling like food is stuck in the lower chest or throat.
• Regurgitation of Undigested Food: Bringing back up undigested food and saliva that has been retained in the dilated esophagus. This often happens several hours after eating and is not the sour taste typically associated with acid reflux.
• Non-Cardiac Chest Pain: Discomfort or pressure in the chest, often described as a squeezing or crushing sensation. This pain is usually related to powerful, disorganized muscle spasms in the esophagus (especially characteristic of Type III, or “Vigorous” Achalasia).
• Heartburn-like Symptoms (Pyrosis): While often mistaken for GERD, this feeling is generally caused by the irritation of the esophageal lining by stagnant, fermenting food, not by stomach acid.
• Unexplained Weight Loss: Occurs as the patient begins to avoid eating due to the discomfort and difficulty of swallowing.

Symptoms by Type of Condition

Achalasia is categorized into three types based on the patterns seen during high-resolution manometry (HRM), which can influence the symptoms experienced:

• Type I (Classic Achalasia): Characterized by a complete lack of muscle activity (aperistalsis). Patients often experience the most severe dysphagia and significant esophageal dilation (megaesophagus).
• Type II (Achalasia with Esophageal Pressurization): Characterized by simultaneous, high-pressure contractions. Patients with this type often respond best to treatment, and their symptoms may sometimes be less severe or vary more widely.
• Type III (Spastic Achalasia): Characterized by premature, strong, and uncoordinated muscle spasms. Patients with Type III are most likely to report severe, frequent chest pain alongside dysphagia.

Emergency Symptoms

Achalasia itself rarely causes an acute medical emergency, but its complications can be dangerous and require immediate care.

• Severe Choking or Difficulty Breathing: This is a sign of acute aspiration, where regurgitated food or liquid enters the trachea (windpipe) or lungs. This requires immediate medical attention to prevent severe pneumonia or airway obstruction.
• Severe, Acute Chest Pain: If chest pain is accompanied by jaw pain, sweating, or shortness of breath, it must be evaluated immediately in an emergency setting to rule out a cardiac event (heart attack), even though the pain may stem from esophageal spasm.
• Gastrointestinal Bleeding: Any sign of blood in vomit (which may look like coffee grounds) or in stools (black, tarry stools) requires urgent assessment.
• High Fever with Severe Cough: This combination can signal severe aspiration pneumonia, especially if the patient is known to suffer from nighttime regurgitation.

Risk Factors You Cannot Control

Achalasia is primarily caused by the autoimmune destruction of the nerve cells (myenteric plexus) in the esophagus. Most factors associated with the disease are non-modifiable.

• Autoimmune Predisposition: The most common cause is believed to be an autoimmune process where the body mistakenly attacks its own esophageal nerves. While not directly inherited in a simple pattern, individuals with other autoimmune disorders may have a slightly increased risk.
• Age: Achalasia can occur at any age, but it is most commonly diagnosed in adults between the ages of 30 and 60.
• Infection (Chagas Disease): In specific endemic areas of Central and South America, the parasitic infection caused by Trypanosoma cruzi is the most common cause of secondary achalasia (also called Chagas Esophagopathy). The parasite directly destroys the nerve cells in the digestive tract.

Risk Factors You Can Control

Since the etiology of primary achalasia is believed to be autoimmune/neurological, there are very few established modifiable lifestyle factors that directly cause the condition. However, certain factors may impact the severity of symptoms or the success of treatment.

• Smoking: While not a cause of achalasia, smoking compromises overall tissue health, slows down healing after surgical or endoscopic procedures (like POEM or Heller Myotomy), and can worsen acid exposure if the patient also has GERD. Quitting smoking is crucial for surgical candidates.
• Obesity: Maintaining a healthy weight helps prevent increased abdominal pressure, which can sometimes worsen symptoms of functional obstruction or contribute to post-treatment complications like reflux.
• Dietary Choices: Although diet doesn’t cause the disease, patients must modify their food intake (choosing soft, blended, or liquid-heavy meals) to manage symptoms and avoid choking or aspiration. Eating slowly and drinking liquids with meals can alleviate immediate discomfort.

Gender Differences in Achalasia Symptoms

Generally, there are no significant differences in the primary symptoms or severity of achalasia between men and women.

• Prevalence: Studies suggest a slight, but often inconsistent, tendency for the condition to be diagnosed slightly more often in men than in women.
• Symptom Reporting: Dysphagia and regurgitation remain the cardinal symptoms for both genders. Differences in symptom reports are usually tied more to the specific type of achalasia (e.g., Type III Spasticity causing more intense chest pain) rather than gender itself.

Understanding Your Total Risk

The total risk of developing primary achalasia is extremely low for the general population, as it is a rare disease. For individuals with progressive, unrelenting difficulty swallowing (dysphagia) that affects both solids and liquids equally, the likelihood of having a motility disorder like achalasia is significantly higher. 

Early diagnosis using tests like Barium Swallow (which shows the characteristic “bird’s beak” appearance) and High-Resolution Manometry (HRM) is the only way to accurately quantify the risk and confirm the diagnosis.

Diagnosis and Evaluation

How To Diagnose Achalasia?

Diagnosing Achalasia is a step-by-step process that confirms the lack of proper muscle function in the esophagus and rules out other diseases. The diagnostic journey starts with basic screening tests and progresses to advanced procedures like manometry, which is essential for accurately classifying the disease and guiding treatment.

Common Screening Tests for Achalasia

While there are no routine screening tests for the general public, the following procedures are often the first steps taken when a patient presents with classic symptoms like dysphagia (difficulty swallowing) and regurgitation.

Barium Swallow (Esophagogram)

The Barium Swallow is typically the first imaging test ordered to evaluate the structure and function of the esophagus.

• Step-by-step Procedure: The patient drinks a thick liquid containing Barium, which coats the lining of the esophagus and shows up clearly on X-ray. The radiologist observes the movement of the Barium as it passes down the esophagus and into the stomach.
• Understanding Test Results: In a patient with achalasia, the Barium will pool and accumulate in the dilated esophagus due to the tightly closed Lower Esophageal Sphincter (LES). The lower esophagus often takes on a tapered appearance, classically described as a “bird’s beak” or “rat-tail” sign. This test provides a strong visual indication of the disease.

Upper Endoscopy (Esophagogastroduodenoscopy – EGD)

Upper Endoscopy is a vital procedure used to directly examine the lining of the upper gastrointestinal tract.

• Step-by-step Procedure: A thin, flexible tube equipped with a light and camera (endoscope) is passed through the mouth, down the esophagus, and into the stomach.
• Understanding Test Results: For achalasia, the endoscopy often shows a dilated, food-filled esophagus and a tightly closed LES that resists opening. Crucially, the EGD’s primary role is to rule out pseudoachalasia, which is achalasia-like symptoms caused by a tumor or mass near the LES. If a tumor is found, it changes the diagnosis and treatment plan entirely.

Advanced Diagnostic Procedures

If the initial screening tests suggest achalasia, the diagnosis must be confirmed and classified using High-Resolution Manometry.

High-Resolution Manometry (HRM)

HRM is the gold standard for diagnosing achalasia, as it directly measures the pressure and coordination of the esophageal muscles.

• Step-by-step Procedure: A thin, pressure-sensing catheter is passed through the nose and into the esophagus. The patient is asked to swallow small amounts of water, and the catheter measures the pressure and timing of muscle contractions and LES relaxation in 3D.
• Understanding Test Results: The key findings for achalasia are:
  • Elevated Integrated Relaxation Pressure (IRP): Confirms that the LES is failing to relax properly.
  • Aperistalsis: Confirms the complete or near-complete lack of coordinated contractions in the esophageal body.
• Staging/Classification: HRM is used to stage the disease according to the Chicago Classification, which identifies the three main types (Type I, II, and III). This classification is essential because it predicts which treatments (e.g., Pneumatic Dilation vs. POEM) will be most successful.

How to Prepare for Manometry and Endoscopy

Proper preparation ensures the safety and accuracy of these diagnostic tests.

• Fasting: For both Endoscopy and Manometry, you must fast (no food or drink) for at least 6 to 8 hours before the procedure.
• Medications: Your doctor will instruct you to temporarily stop certain medications, especially those that affect muscle movement (like nitrates or calcium channel blockers) or those that increase the risk of bleeding (like blood thinners), as these can skew the manometry results or increase surgical risk during endoscopy.
• Esophageal Clearing: Because achalasia patients often have retained food, the surgeon may recommend a liquid diet for 24 hours before the EGD, or even a brief period of saline lavage, to ensure the esophagus is clear for the camera.

Understanding Your Test Results

Once both the EGD rules out a tumor, and the HRM confirms aperistalsis and elevated IRP, the diagnosis of achalasia is certain.

• Final Diagnosis: The diagnosis is made when imaging (bird’s beak sign) and manometry (elevated IRP + aperistalsis) are consistent.
• Treatment Planning: The HRM results dictate the plan. For instance, Type II achalasia has the best prognosis with any treatment, while Type III (Spastic) often requires the more extensive muscle cut offered by the POEM procedure.

When Do You Need Esophageal Function Testing?

You need advanced esophageal function testing (HRM) when initial screening tests, like the Barium Swallow, show clear functional problems, but a definitive, classified diagnosis is needed before planning definitive treatment (surgery or dilation). HRM is essential because it is the only test that can distinguish achalasia from other similar motility disorders like Diffuse Esophageal Spasm.

Treatment and Management

Achalasia Treatment

Achalasia treatment focuses on relieving symptoms by permanently reducing the high pressure of the Lower Esophageal Sphincter (LES) to allow food to pass into the stomach. While there is no cure for the underlying nerve damage, successful intervention stops food stagnation, alleviates pain, and improves the patient’s quality of life. Treatment strategies range from medications to highly advanced surgical procedures performed at centers like LIV Hospital.

Minimally Invasive Procedures

These treatments are performed endoscopically (using a scope inserted through the mouth) and offer permanent or long-lasting relief without open surgery.

• Pneumatic Dilation (PD):
  • Procedure: A balloon is guided through an endoscope to the LES and rapidly inflated to a specific size. This forceful expansion stretches and tears the muscle fibers of the LES.
  • Recovery Time and Expectations: PD is an outpatient procedure, meaning patients usually go home the same day. Recovery involves initial soreness, with return to normal activities within a few days. However, multiple dilation sessions are often needed over time to maintain symptom relief.
• Botulinum Toxin (Botox) Injection:
  • Procedure: Botox is injected directly into the LES muscle fibers endoscopically. It temporarily paralyzes the muscle, causing it to relax.
  • Limitations: This effect is temporary, usually lasting only 6 months to 1 year, and is typically reserved for elderly patients or those with severe health conditions who cannot undergo more definitive treatments.
• Peroral Endoscopic Myotomy (POEM):
  • Procedure: This is a revolutionary endoscopic surgery. The surgeon enters the wall of the esophagus, creates a tunnel, and uses specialized tools to precisely cut the inner muscle layers of the LES and a portion of the esophageal muscle above it.

Surgical Treatments for Achalasia

Surgical intervention provides the most durable and long-lasting relief by permanently cutting the LES muscle.

• Laparoscopic Heller Myotomy (LHM):
  • Procedure: This is a traditional surgical approach performed minimally invasively through several small incisions in the abdomen. The surgeon cuts the muscle fibers of the LES longitudinally.
  • Important Note: Because LHM destroys the LES’s ability to close, it must be combined with a partial fundoplication (wrapping a part of the stomach around the LES) to prevent severe post-operative acid reflux.
  • LIV Hospital Advantage: At LIV Hospital, our thoracic and general surgeons utilize advanced laparoscopic techniques, leading to less pain and quicker recovery compared to open surgery. We carefully tailor the fundoplication (e.g., Dor or Toupet) to balance LES relief with reflux prevention, ensuring comprehensive long-term care.

Rehabilitation and Recovery

Recovery is focused on managing initial discomfort and ensuring the successful long-term function of the repaired LES.

• Immediate Post-Procedure Care: After any intervention (PD, POEM, or LHM), patients start on a clear liquid diet. This rapidly progresses to a soft diet over the course of the first week.
• Dietary Rehabilitation: Patients learn to modify their eating habits: chewing thoroughly, eating slowly, and drinking plenty of fluids with meals to ensure passage through the newly relaxed LES.
• Recovery Time and Expectations: Hospital stays vary: PD is outpatient (hours), POEM typically requires 1-2 days, and LHM requires 2-4 days. Most patients return to light work within 5 to 14 days. However, full internal healing and stable dietary tolerance can take several months.

Medical Treatment Options

Medications are generally reserved for patients who are not candidates for procedural interventions (like dilation or surgery) or as a temporary bridge to more permanent treatment. They work by temporarily relaxing the smooth muscles of the LES.

• Nitrates (e.g., Isosorbide Dinitrate) and Calcium Channel Blockers (e.g., Nifedipine): These oral medications are taken before meals to temporarily relax the LES muscle.
• Limitations: The effectiveness of these drugs is often low, temporary, and they frequently cause systemic side effects like headaches and low blood pressure. They are not considered a long-term solution for achalasia.

What to Expect After Treatment

After treatment, patients experience immediate relief from dysphagia.

• Pneumatic Dilation (PD): Patients usually go home the same day and return to work within 1-3 days. The key expectation is the potential need for repeat sessions over time.
• POEM: Patients stay 1-2 days and return to work within 5-7 days. This provides excellent long-term relief with minimal scarring.
• Heller Myotomy: Patients stay 2-4 days and return to work within 1-2 weeks. This provides durable relief but requires careful monitoring for post-operative acid reflux.

LIV Hospital is committed to post-operative excellence. Our multidisciplinary team, including dieticians and motility specialists, provides comprehensive recovery plans tailored to minimize pain, manage reflux risk, and help patients transition back to a comfortable diet.

Long-Term Management and Follow-up

Long-term success requires consistent monitoring to check for symptom adequacy and potential complications.

• Post-Treatment Monitoring: Regardless of the procedure, regular follow-up with your specialist is essential. This includes assessing the patient for recurrent dysphagia, which might indicate the need for further intervention.
• Reflux Surveillance: After procedures that compromise the LES (LHM and POEM), patients are monitored for post-treatment Gastroesophageal Reflux Disease (GERD). This may involve periodic pH testing or endoscopy.
• Cancer Risk: Patients with a long history of pre-treatment achalasia and megaesophagus have an increased, though small, risk of developing esophageal cancer. Your physician will determine if periodic endoscopic surveillance is necessary.

Recovery and Prevention

Post-Surgical Healing Timeline

Achalasia is a rare disease caused by nerve damage. While there is no cure, focusing on long-term maintenance and care is vital for managing symptoms, supporting healing after treatment, and preventing serious complications like aspiration and the return of dysphagia.

Nutrition and Diet for Achalasia Management

Since primary achalasia is caused by nerve damage, specific diets cannot prevent the disease from starting. However, diet is the most important part of managing symptoms and avoiding complications once the disease has been diagnosed or treated.

• Consistency is Key: Before and immediately after treatment, patients must often follow a diet of soft, pureed, or liquid foods. This helps food easily pass through the tight Lower Esophageal Sphincter (LES).
• Avoid Problem Foods: Highly dry, dense, sticky, or hard-to-chew foods (like dry bread, tough meat, or raw vegetables) should be avoided because they are very likely to get stuck.
• The “Wash-Down” Technique: Always drink plenty of water or other liquids with every bite of food. This helps push the food past the obstruction or the tightened area.
• Timing: Eat small, frequent meals rather than large ones, and avoid eating late at night. This reduces the risk of food coming back up (regurgitation) and being accidentally inhaled (aspiration) while sleeping.

Exercise Guidelines for Maintenance

Exercise is important for overall health, but movement should be managed carefully to avoid causing discomfort or complicating recovery.

• Low to Moderate Impact: Focus on activities like walking, swimming, cycling, or yoga. These exercises maintain fitness and a healthy weight without putting stress on the surgical area.
• Core Caution: Patients should be cautious with exercises that create a lot of pressure in the abdomen, such as heavy weightlifting or intense sit-ups, especially if the esophagus is still enlarged (megaesophagus). Increased pressure can worsen regurgitation.
• Post-Surgery Clearance: Always wait for full clearance (usually 6 to 8 weeks) from your surgeon before returning to any difficult physical routine after treatment.

Stress and Symptom Management

While stress does not cause the disease, it can significantly worsen symptoms by triggering painful muscle spasms. Effective stress management can greatly improve a patient’s comfort.

• Mindfulness and Relaxation: Techniques like deep-breathing exercises, meditation, and guided imagery can help relax the body and may reduce how often or how strongly esophageal muscle spasms occur.
• Adequate Sleep: Getting enough consistent sleep is crucial for managing overall physical and mental stress.
• Psychological Support: Counseling or joining a support group can give patients tools for dealing with the constant nature of the disease and the anxiety related to eating.

Care Practices for Lasting Results

These practices help protect the results of your surgery or procedure and reduce the risk of serious complications.

• Quitting Smoking and Alcohol: Quitting smoking is essential because nicotine severely limits blood flow, which slows healing after surgeries like POEM. Excessive alcohol can irritate the esophageal lining and should be avoided.
• Sleeping Position: Always raise the head of your bed (using blocks or a wedge) by 6 to 8 inches. This uses gravity to help prevent retained food and saliva from flowing back up and being accidentally inhaled (aspiration) while you sleep.
• Weight Stability: Avoiding rapid or excessive weight changes helps maintain the surgical results and minimizes pressure on the abdomen and esophagus.

When to Schedule Regular Screenings

Regular check-ups are essential for long-term care and preventing serious complications.

• Post-Treatment Follow-up: Regular visits are necessary to monitor the effectiveness of your treatment (dilation or surgery) and ensure that difficulty swallowing is not returning.
• Esophageal Cancer Screening: Patients who have had achalasia for a long time (over 10-15 years), especially those with a severely dilated esophagus (megaesophagus), have a slightly increased risk of developing esophageal cancer. Physicians may recommend regular endoscopic surveillance (a scope check) every 1 to 3 years to find any early changes.

Preventing Recurrence (Maintaining Relief)

Recurrence usually means the return of severe difficulty swallowing because the treated area has tightened up again.

• Consistent Dilation (if applicable): If Pneumatic Dilation (PD) was the chosen treatment, patients must strictly follow the schedule for repeat dilation sessions, as the LES tends to tighten over time.
• Reflux Management: After procedures that permanently weaken the LES (like POEM or Heller Myotomy), managing potential acid reflux with medication is crucial. This prevents inflammation and long-term damage to the lower esophagus.