Journal of Neurogastroenterology and Motility : eISSN 2093-0887 / pISSN 2093-0879

Table. 1.

Normal Values for Single Test Swallows

Metric Supine 5 mL liquid Upright 5 mL liquid Viscous swallows Solid swallows MRS RDCa
n 30 30 26 29 30 30
IRP (mmHg) 11 (4-16) 9 (0-17)b 6 (0-15)b,c 9 (1-19)b 3 (0-12)b,c 5 (–3-12)b,c
Median DCI (mmHg·cm·sec) 1747 (366-6335) 1578 (94-5110)b 1689 (331-5125)b 2848 (0-4428) - -
Greatest DCI (mmHg·cm·sec) 2295 (566-10980) 2257 (350-6896)b 2276 (746-7200)b 2231 (0-5153) 2645 (0-10362) -
Shortest DL (sec) 6.0 (4.9-8.0) 6.2 (4.6-8.2) 7.0 (5.2-9.1)b,c 6.5 (4.8-8.7)b,c - -

aReflects the IRP-RDC-30s, ie, the integrated relaxation pressure (IRP) measured during the first 30 seconds of the rapid drink challenge (RDC).

bP < 0.05 compared with supine swallows.

cP < 0.05 compared with upright, 5 mL liquid swallows.

MRS, multiple rapid swallows; DCI, distal contractile integral; DL, distal latency.

Viscous and solid swallows, as well as MRS and RDC were performed in the upright, seated position.

Values reflect median (5th-95th percentiles).

J Neurogastroenterol Motil 2021;27:354~362 https://doi.org/10.5056/jnm20118
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