Treatment of Esophageal Motility Disorders

Diagnostic Approach

High-resolution manometry (HRM) is essential for accurate diagnosis of esophageal motility disorders, providing superior assessment of bolus movement and detecting abnormalities that may be missed with standard manometry, as recommended by the American Gastroenterological Association 1
HRM enables classification of achalasia into subtypes (I, II, and III), which has prognostic value and guides therapeutic decisions, according to the American Gastroenterological Association 1
Complete evaluation should include esophagogram, endoscopy, manometry, and pH monitoring to establish a comprehensive diagnosis, as suggested by the American Gastroenterological Association 2
Adjunctive testing during HRM (larger volumes of water, solid/viscous swallows, or test meals) can unmask pathology not seen with standard water swallows, as noted by the American Gastroenterological Association 1

Per-oral endoscopic myotomy (POEM) is highly effective for achalasia with success rates >90%, as reported by the American Gastroenterological Association 2
For type III achalasia, myotomy should be tailored to the proximal extent of esophageal body spasm rather than confined to the LES alone, according to the American Gastroenterological Association 2
POEM provides the advantage of unlimited proximal extension of myotomy compared to laparoscopic approaches, as noted by the American Gastroenterological Association 2

Neuromodulators (low-dose antidepressants) can be beneficial for patients with esophageal hypersensitivity, as suggested by the American Gastroenterological Association 3

Comprehensive evaluation with correlation of symptoms is mandatory before intervention, as recommended by the American Gastroenterological Association 2
POEM should only be considered on a case-by-case basis after less invasive approaches have been exhausted, according to the American Gastroenterological Association 2
Long-term success rates for POEM in EGJOO (80-85%) appear somewhat lower compared to POEM for classic achalasia subtypes, as reported by the American Gastroenterological Association 2

Cognitive behavioral therapy (CBT), esophageal-directed hypnotherapy, and diaphragmatic breathing can be beneficial for patients with functional components, as suggested by the American Gastroenterological Association 3
For patients with reflux hypersensitivity or esophageal hypervigilance, neuromodulation with low-dose antidepressants should be considered, according to the American Gastroenterological Association 3

Check for electrolyte abnormalities (particularly magnesium and potassium) which can affect esophageal motility, as noted by the American Gastroenterological Association 1
Post-treatment follow-up should include both symptom assessment and objective testing, as symptoms may not correlate with physiological improvement, as recommended by the European Society of Gastrointestinal Motility 4

Complete a diagnostic workup with esophagogastroduodenoscopy (OGD) and biopsies at two esophageal levels, followed by high‑resolution manometry (HRM) to confirm the specific motility disorder – recommended for all patients before any therapeutic decision. 5, 6

OGD with biopsies is required to exclude eosinophilic esophagitis, mucosal lesions, and structural abnormalities before attributing dysphagia to a motility disorder – applies to any adult presenting with esophageal symptoms. 5, 6, 7
Endoscopy identifies a major abnormality in 54 % of patients presenting with dysphagia, making it the highest‑yield initial test – based on a cohort of dysphagic patients undergoing initial evaluation. 5

Barium swallow should be considered when endoscopy is not feasible or when further assessment of suspected structural disease is needed – serves as an alternative imaging modality. 5, 7

Approximately 70 % of patients with ineffective esophageal motility (a minor motor disorder) become asymptomatic at follow‑up without specific intervention, reflecting spontaneous improvement – derived from longitudinal follow‑up of patients diagnosed with minor motor abnormalities. 5, 6, 7
Minor motor function disorders are associated with a favorable prognosis and rarely progress over time – observed in long‑term outcome studies of patients with minor esophageal motility findings. 5, 7