Efficacy of treatment for patients with achalasia depends on the distensibility of the esophagogastric junction

Gastroenterology
Wout O RohofGuy E Boeckxstaens

Abstract

Many patients with persistent dysphagia and regurgitation after therapy have low or no lower esophageal sphincter (LES) pressure. Distensibility of the esophagogastric junction (EGJ) largely determines esophageal emptying. We investigated whether assessment of the distensibility of the EGJ is a better and more integrated parameter than LES pressure for determining efficacy of treatment for patients with achalasia. We measured distensibility of the EGJ using an endoscopic functional luminal imaging probe (EndoFLIP) in 15 healthy volunteers (controls; 8 male; age, 40 ± 4.1 years) and 30 patients with achalasia (16 male; age, 51 ± 3.1 years). Patients were also assessed by esophageal manometry and a timed barium esophagogram. Symptom scores were assessed using the Eckardt score, with a score <4 indicating treatment success. The effect of initial and additional treatment on distensibility and symptoms was evaluated in 7 and 5 patients, respectively. EGJ distensibility was significantly reduced in untreated patients with achalasia compared with controls (0.7 ± 0.9 vs 6.3 ± 0.7 mm(2)/mm Hg; P < .001). In patients with achalasia, EGJ distensibility correlated with esophageal emptying (r = -0.72; P < .01) and symptoms (r = 0.61; P < .0...Continue Reading

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