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Colonic motility findings
| Parameter | Result | Number of patients with abnormal values |
|---|---|---|
| Fasting colonic volume (mL) | 142 ± 27 | 2 |
| Postprandial increase in colonic tone (%) | 43 ± 10 | 3 |
| Post-neostigmine change in colonic compliance (Prhalf, mmHg) | 4.4 ± 0.6 | 4 |
Prhalf pressure corresponding to half maximum volume during the pressure-volume relationship. Neostigmine increased the Prhalf, reflecting lower compliance, or a stiffer colon
