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BackgroundA substantial pressure drift in high‐resolution manometry (HRM) has been reported; however, fundamental questions remain regarding the origin and management of this drift. The aim of this study was to provide critical in‐depth analyses of ManoScan™HRM drift in vitro and in vivo.
MethodsA total of sixteen 15‐min studies and twelve 5‐h studies were performed in a water bath at 37 °C at 4...