Can achalasia develop in older adults?

Can Achalasia Be Acquired at Later Age?

Yes, achalasia absolutely can develop in older adults, with a well-documented second peak of incidence occurring after age 60. 1

Age Distribution and Epidemiology

Achalasia demonstrates a bimodal age distribution with two distinct peaks of incidence:

• First peak: 3rd to 4th decades of life 1
• Second peak: After 60 years of age 1
• The incidence and prevalence are actually growing in elderly populations 2
• The disease can affect all ages and both sexes 3

Clinical Presentation in Older Adults

Elderly patients with achalasia present differently than younger patients and are often less symptomatic despite similar disease severity. 1

Key differences in older adults include:

• Lower prevalence of heartburn (P = 0.001) compared to younger patients 1
• Lower prevalence of chest pain (P = 0.012) compared to younger patients 1
• Cardinal symptoms remain dysphagia, regurgitation, chest pain, and weight loss, but may be less pronounced 3
• Several years can pass between symptom onset and diagnosis in any age group 3

Pathophysiological Considerations in Aging

The interaction between normal aging and achalasia is particularly relevant:

• Healthy older individuals naturally have fewer ganglion cells in the intramural myenteric plexus 1
• Normal aging causes reduced lower esophageal sphincter relaxation 1
• Age-related reduction in esophageal peristalsis occurs independently 1
• Both age and achalasia produce comparable degenerative changes in the myenteric plexus, potentially enhancing clinical and manometric abnormalities 1

Manometric Features in Elderly Patients

Elderly patients with achalasia demonstrate lower lower esophageal sphincter (LES) pressure compared to younger patients (26.4 mm Hg vs 31.9 mm Hg, P = 0.001), even when excluding secondary causes like Chagas disease. 1

This finding suggests:

• Advanced age may be an important factor enhancing the degenerative changes in achalasia 1
• The disease evolves over a variable timespan, potentially presenting at different stages depending on when testing occurs 4

Diagnostic Approach

The diagnostic workup remains consistent across age groups:

• High-resolution manometry (HRM) is critical for diagnosis 5
• Endoscopy rules out structural causes 3
• Barium radiography provides supportive evidence 3
• Functional lumen imaging probe can provide complementary evidence 3

A critical pitfall: The disease can present anywhere along the continuum from normal function to unequivocal achalasia, making early or incompletely evolved disease challenging to diagnose. 4

Treatment Considerations for Older Adults

The safety profile of definitive therapies in older adults is at least comparable to younger patients, and age alone should not preclude aggressive treatment. 6

Treatment Algorithm for Elderly Patients:

For fragile, unfit elderly patients:

• Conservative approach with botulinum toxin injection (BTI) is appropriate 2
• BTI can temporize symptoms and function as a bridge to definitive therapy 3

For fit elderly patients:

• Treatment decisions should mirror those for younger populations 2
• Base decisions on achalasia subtype, patient preference, and available expertise 2
• Pneumatic dilation (PD) safety in older adults (≥65 years) is comparable to younger patients with similar perforation rates across age groups 6
• Advanced age was actually protective against benign chest pain complications after PD 6

Specific Treatment Options:

Per-oral endoscopic myotomy (POEM):

• Should be considered for type III achalasia when longer myotomy is indicated 4
• Patients with advanced age should be considered for hospital admission rather than same-day discharge 7
• Requires appropriate PPI use post-procedure 8

Laparoscopic Heller myotomy (LHM) with fundoplication:

• Comparable efficacy to POEM for types I and II 8
• May be preferred when reflux control is a primary concern 8

Important Caveats

• Higher prevalence of Chagas disease in elderly populations (P = 0.004) requires serological testing to distinguish primary from secondary achalasia 1
• Long-term complications can rarely include esophageal cancer, though surveillance recommendations have not been established 3
• The limited number of adverse events in elderly patients precludes definitive multivariable analysis of risk factors 6