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Copyright ©The Author(s) 2021.
World J Gastroenterol. Aug 21, 2021; 27(31): 5201-5218
Published online Aug 21, 2021. doi: 10.3748/wjg.v27.i31.5201
Figure 6
Figure 6 Twenty-four hour impedance pH monitoring normal findings compared to findings in scleroderma. In normal esophagus, there are no episodes of acid reflux, as indicated by no drops of pH below 4 in the esophagus. In scleroderma esophagus, there is prolonged acid exposure in the distal esophagus.