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Table 3 Manometric pattern of the 215 patients according to the presence or absence of reflux esophagitis a

From: Nonerosive gastroesophageal reflux disease and mild degree of esophagitis: Comparison of symptoms endoscopic, manometric and pH-metric patterns

Measured parameters

RE patients (mean values)

RE-free patients (mean values)

P values

LES pressure (normal value = 14.3 to 34.5 mmHg)

15.3 mmHg

16.8 mmHg

NS

Length of abdominal LES

1.1 cm

1.6 cm

0.05

Amplitude pressure waves (normal value = 64 to 154)

74.7 mmHg

73.8 mmHg

NS

Duration pressure waves (normal value = 2.9 to 5.1 seconds)

3.2 seconds

3.1 seconds

NS

Motor alteration of esophageal body

71.9%

67.9%

NS

  1. aRE, reflux esophagitis; LES, lower esophageal sphincter; NS, not statistically significant.