Treatment for Achalasia
The primary treatment options for achalasia are pneumatic dilation (PD), laparoscopic Heller myotomy (LHM), and peroral endoscopic myotomy (POEM), with POEM being the preferred treatment specifically for type III achalasia and comparable to LHM for other subtypes 1, 2.
Treatment Selection Algorithm
Step 1: Determine Achalasia Subtype (Critical for Treatment Selection)
Your treatment choice depends heavily on the Chicago Classification subtype:
- Type I (classic): Minimal esophageal pressurization
- Type II: Panesophageal pressurization (most common, best prognosis)
- Type III: Premature/spastic contractions (requires longer myotomy)
Step 2: Match Treatment to Subtype
For Type III Achalasia:
- POEM is the preferred treatment because it allows for a longer myotomy (averaging 17.2 cm) that can address the obstructive contractility extending beyond just the lower esophageal sphincter 1, 2
- Type III has less robust outcomes with therapies limited to the LES alone 1
For Type I and Type II Achalasia:
- All three major treatments (POEM, LHM, PD) are effective 2
- POEM has been shown superior to PD and noninferior to LHM in randomized controlled trials 2
- PD and LHM have demonstrated equivalent excellent 5-year outcomes 1
Step 3: Apply Specific Treatment Protocols
Pneumatic Dilation Protocol 3:
- Start with 30 mm diameter balloon in first session
- Perform second session 2-28 days later with 35 mm balloon
- Consider third session with 40 mm balloon if Eckardt score remains >3
- Effectiveness: 90% in first year, 86% in second year
- Up to one-third may have symptom recurrence during 4-6 years, but repeat dilation achieves remission rates of 97% at 5 years and 93% at 10 years 3
POEM Considerations 1:
- Requires 20-40 procedures to achieve competence; should only be performed in high-volume centers by experienced physicians
- Myotomy length can be customized based on disease extent
- Critical caveat: Post-POEM patients have 10-40% rate of symptomatic GERD and should be counseled about potential indefinite PPI therapy and surveillance endoscopy requirements
Laparoscopic Heller Myotomy:
- Should be combined with partial fundoplication to reduce reflux risk
- Remains highly effective with long-term outcome data
- Particularly appropriate when POEM expertise is unavailable
Step 4: Post-Treatment Management
Mandatory for all patients after any myotomy procedure 3:
- Start PPI therapy due to 10-40% rate of symptomatic GERD or ulcerative esophagitis
- This applies to both POEM and LHM, though POEM carries higher reflux risk without fundoplication 1, 2
Common Pitfalls to Avoid
Do not use bougie dilators for achalasia - only pneumatic balloons are appropriate 3
Do not perform POEM without adequate institutional experience - the learning curve is steep and complications increase without proper training 1
Do not skip PPI therapy post-procedure - reflux complications are common and preventable 3, 1
Do not treat type III achalasia with standard LES-only approaches - these patients need longer myotomy that POEM provides 1, 2
For pneumatic dilation, do not skip the graded approach - starting at 30 mm and progressing to larger sizes reduces perforation risk 3
Special Considerations
Botulinum toxin injection is only recommended for highly selected patients who cannot tolerate definitive therapy, as it provides only short-term relief and requires repeated injections with progressively diminishing benefit 4, 5.
End-stage disease with sigmoid esophagus may require esophagectomy, though POEM has been used successfully in some cases with doubled adverse event rates 1.