Lower esophageal sphincter relaxation is impaired in older patients with dysphagia

Figure 2 Lower esophageal sphincter pressure at 1 s (A) and 4 s (B) prior to swallow, and lower esophageal sphincter nadir pressure (C), in right lateral and upright postures with liquids and solids, in young (n = 19; 32 ± 1. 7 years) and older (n = 19; 85 ± 0.7 year) patients with dysphagia. ^aP < 0.05; ^bP < 0.01; ^cP = 0.01 vs young. LES: Lower esophageal sphincter; LESP: Lower esophageal sphincter pressure.