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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: Gastroenterology. 2018 May 24;155(3):760–770.e1. doi: 10.1053/j.gastro.2018.05.036

Figure 4.

Figure 4

UES pressure response to slow (1ml/sec) (4a) acid and (4b) saline intra-esophageal infusion in young and elderly. The average of 10-second epochs of UES-CI is presented. In acid infusion, both young and elderly showed significant increase in UES pressure during active acid infusion as well as during the passive dwell interval when compared to baseline. Similar to acid infusion, in saline infusion, both young and elderly also showed significant increase in UES-CI during active infusion and passive dwell interval. UES-CI: UES high-pressure zone contractile integral