From: Normal values for high-resolution anorectal manometry in healthy young adults: evidence from Vietnam
Mean (SD) | Min-Max | |
---|---|---|
Functional anal canal length (cm) | 3.4 (0.5) | 2.4–4.8 |
Anal pressure | ||
Maximum resting pressure (mm Hg) | 65.5 (13.9) | 40.2–92.8 |
Maximum squeezing pressure (mm Hg) | 168.0 (61.0) | 78.3-352.4 |
Maximum coughing pressure (mm Hg) | 125.9 (41.7) | 42.1-228.4 |
Maximum strain pressure (mm Hg) | 84.2 (36.3) | 38.6-168.6 |
Defecation index | 2.2 (0.9) | 1.3–4.8 |
Threshold volume to elicit RAIR (mL) | 17.0 (5.3) | 10–30 |
Rectal sensation | ||
First sensation (mL) | 19.7 (7.6) | 10–40 |
Desire to defecate (mL) | 46.7 (13.0) | 30–90 |