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Normal values for esophageal high‐resolution manometry
Author(s) -
Bogte A.,
Bredenoord A. J.,
Oors J.,
Siersema P. D.,
Smout A. J. P. M.
Publication year - 2013
Publication title -
neurogastroenterology and motility
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.489
H-Index - 105
eISSN - 1365-2982
pISSN - 1350-1925
DOI - 10.1111/nmo.12167
Subject(s) - supine position , high resolution manometry , percentile , esophagogastric junction , esophageal sphincter , medicine , esophageal motility disorder , contraction (grammar) , nuclear medicine , reflux , esophagus , mathematics , achalasia , statistics , adenocarcinoma , disease , cancer
Abstract Background Esophageal high‐resolution manometry ( HRM ) is a novel method to assess esophageal motility. Several software and hardware systems are currently available. A set of normal values for HRM parameters was established in the US , using proprietary tactile‐sensing catheter technology (Given Imaging). We wished to determine normal values for HRM performed with another type of catheter (Unisensor). Methods Fifty‐two healthy volunteers underwent supine HRM . Each subject swallowed 10 liquid water boluses. Esophageal contraction parameters were evaluated and normal values were calculated (defined as 5th and 95th percentile of values). Key Results The normal range for the following parameters was calculated; distal contractile integral (mean 1319.44, with a 5–95th percentile range [185.65–3407.60]), contractile front velocity (mean 3.98, 5–95th percentile range [2.40–6.50]), Intrabolus pressure (mean 9.68, range [1.00–19.00]), contraction amplitude measured 5 cm above the esophagogastric junction ( EGJ ; mean 78.76, range [23.00–146.00]), contraction amplitude 15 cm above the EGJ (mean 43.66, range [3.60–96.00]), transition zone ( TZ ) length (mean 1.34, range [0.00–5.63]), upper esophageal sphincter ( UES ) pressure (mean 81.63, range [19.50–165.10]), EGJ length (mean 2.97, range [2.17–4.00]), EGJ resting pressure (mean 29.35, range [8.95–51.40]), EGJ relaxation pressure (mean 16.79, range [1.00–39.35]), IRP s4 (mean 13.42, range [2.59–28.28]), and gastric pressure (mean 5.06, range [0.00–9.46]). Conclusions & Inferences Overall, the normal values of esophageal HRM parameters obtained with the Unisensor catheter resemble those of the previously published series. Marked differences in upper limits of normal were found for parameters related to the esophageal sphincters and TZ length. Users of HRM should be aware of these differences and define pathology based on comparison to appropriate normal values.