Assessment of Esophageal High-Resolution Impedance Manometry in Patients with Nonobstructive Dysphagia

Figure 1

Characteristics of nonobstructive dysphagia (NOD) patients. (a) In a total of 58 patients, 28 (48.3%) patients were diagnosed with achalasia, 3 (5.2%) patients with EGJ outflow obstruction, and 20 (34.5%) with nonspecific esophageal motility disorders, and 7 (12.1%) patients were normal. (b) Of 20 nonspecific esophageal motility disorders patients, 3 patients had fragmented peristalsis, 3 patients had distal esophageal spasm, 2 patients had hypercontractile esophagus, and 12 patients had ineffective esophageal motility.

(a)

(b)