Table 1

Mean (SEM) of the various measures for patients with and without delayed total stomach emptying and patients with and without pathological reflux

Delayed total emptyingPathological reflux
VariableYes (n=18)No (n=53)Yes (n=29)No (n=42)
Gastric emptying
 AUCtot(units)488.2  (3.8)416.9  (4.3)430.5  (7.8)429.0  (6.9)
 AUCprox(units)261.1 (22.1)260.7 (9.1)277.0 (15.4)243.8 (9.7)
 AUCdist (units)227.1 (21.8)156.2 (8.9)153.5 (14.3)185.2 (12.0)
Gastro-oesophageal reflux
 24 hour acid exposure (%)5.1 (1.2)6.7 (1.3)13.0 (1.8)1.5 (0.2)
 Postprandial acid exposure (%)7.1 (1.7)9.1 (1.4)17.1 (1.7)2.5 (0.5)
 Reflux episodes/h (n)1.4 (0.3)1.7 (0.2)2.9 (0.3)0.7 (0.1)
Oesophagitis (grade)0.9 (0.3)1.3 (0.2)2.0 (0.2)0.7 (0.2)
Oesophageal contractile activity
 LOS resting pressure (mm Hg)12.6 (1.1)14.8 (0.9)10.7 (0.8)16.8 (0.9)
 Amplitude distal (mm Hg)72.7 (10.7)72.3 (6.4)56.1 (7.6)83.6 (7.0)
 Amplitude middle (mm Hg)55.2 (8.2)55.0 (5.2)41.6 (4.9)64.6 (6.1)
 Amplitude proximal (mm Hg)45.0 (7.4)43.5 (2.4)40.9 (3.9)46.7 (3.5)
 Failed contractions (%)8.7 (2.4)8.4 (1.8)10.9 (2.8)6.6 (1.6)
Oesophageal clearance time (s)45.3 (11.1)42.9 (5.6)50.8 (8.8)38.7 (5.8)
Age (y)46.6 (3.2)52.0 (1.7)52.6 (2.2)49.6 (2.1)
Body mass index (kg/m2)23.8 (1.0)26.6 (0.5)26.1 (0.7)25.8 (0.7)