Background
Methods
Ethics
Subjects
Equipments
Protocol
Statistic analysis
Results
Demographic and clinical data
Comparisons of manometric parameters between the two systems
22-channel WPM | 36-sensor SSM | Z value | P | |
---|---|---|---|---|
LES proximal margin (cm) | 41.5(38-43) | 42(39-43) | -2.11 | 0.035 |
LES length (cm) | 4(4-4) | 3.5(3-4) | 0.00 | 1.000 |
LES rest pressure (mmHg) | 13.5(10-21) | 16.5(14-22.5) | -1.69 | 0.091 |
LES relax ratio (%) | 97.5(92-98.5) | 84(77-88.5) | -2.20 | 0.028 |
Distal esophageal body contraction intensity (mmHg) | 68.5(40-85.25) | 80(50-126.5) | -1.88 | 0.060 |
Distal esophageal body contraction duration (s) | 3.85(2.9-4.2) | 3.7(3.4-4.525) | -1.18 | 0.238 |
Proximal esophageal body contraction intensity (mmHg) | 39(22-54) | 51.5(40-62.75) | -1.96 | 0.050 |
Proximal esophageal body contraction duration (s) | 3.05(2.6-3.275) | 3.2(2.5-3.325) | -0.67 | 0.505 |
UES proximal margin (cm) | 17(16-18) | 16.5(16-17.25) | -0.81 | 0.417 |
UES length (cm) | 4(4-5) | 4(3-5) | -0.52 | 0.603 |
UES rest pressure (mmHg) | 56.5(43-82.5) | 77.5(60-113) | -1.88 | 0.060 |
UES relax ratio (%) | 100(100-100) | 100(97-100) | -0.76 | 0.446 |
22-channel WPM | 36-sensor SSM | Z | P | |
---|---|---|---|---|
LES relax ratio (%) | 94.5(89-95.75) | 83(77-88) | -2.805 | 0.005 |
Distal esophageal body contraction intensity (mmHg) | 72(46-103.5) | 100(70-144.25) | -1.883 | 0.060 |
Distal esophageal body contraction duration (s) | 3.2(3-4.15) | 3.9(3.3-5.4) | -1.785 | 0.074 |
Proximal esophageal body contraction intensity (mmHg) | 51.5(38-57.75) | 69.5(42-78) | -1.611 | 0.107 |
Proximal esophageal body contraction duration (s) | 3.05(2.6-3.275) | 3.2(2.5-3.325) | -0.432 | 0.665 |
22-channel WPM | 36-sensor SSM | Z value | P | |
---|---|---|---|---|
CFV in wet swallow (cm/s) | 7.25(6.325-9.25) | 8.15(5.8-10.7) | -1.34 | 0.182 |
DCI in wet swallow (mmHg.s.cm) | 636.5(344.8-1186) | 887.5(347.5-1607) | -1.84 | 0.065 |
IRP in wet swallow 4 s (mmHg) | 7.5(4-8.25) | 13(7.75-16.25) | -2.05 | 0.041 |
CFV in jelly pocket swallow (cm/s) | 5.45(4.775-6.025) | 5.15(3.625-7.275) | -0.236 | 0.814 |
DCI in jelly pocket swallow (mmHg.s.cm) | 817(587-1148) | 1305(797.3-1732) | -1.883 | 0.060 |
IRP 4 s in jelly pocket swallow (mmHg) | 3.5(3-6.75) | 9.5(5-12.5) | -1.788 | 0.074 |