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Revista Española de Enfermedades Digestivas

Print version ISSN 1130-0108

Abstract

CIRIZA-DE-LOS-RIOS, Constanza; MINGUEZ, Miguel; REMES-TROCHE, José-María  and  LACIMA, Glòria. High-resolution and high-definition anorectal manometry: rediscovering anorectal function. Rev. esp. enferm. dig. [online]. 2018, vol.110, n.12, pp.794-805. ISSN 1130-0108.  http://dx.doi.org/10.17235/reed.2018.5705/2018.

Anorectal motor and functional disorders are common among the general population. Anorectal manometry allows the study of anorectal motor activity both at rest and mimicking different physiological situations. High-resolution anorectal manometry (HR-ARM) and high-definition anorectal manometry (HD-ARM) are increasingly used in clinical practice. In comparison with the conventional technique, HR-ARM and HD-ARM catheters provide a higher number of recording points because of their many, closely packed circumferential sensors. This allows time-space visualization (topographic or 2-3-plane mode) as spatially continuous measurements are obtained by interpolation between near sensors. HR-ARM and HD-ARM allow a more standardized, reproducible technique, and a better assessment and understanding of the functional anatomy of the sphincter complex. Newer specific parameters are now being developed for use with these systems. They are being currently assessed by multiple research teams, and many of them remain unavailable for clinical practice as of today. However, they provide highly relevant information, which is now prompting a redefinition of anorectal anatomy and physiology. The goal of the present review was to describe the currently available HR-ARM and HD-ARM techniques, to discuss the normal values so far reported, and to analyze the newer parameters that may be assessed with these techniques, and which will likely be highly useful for clinical practice in the upcoming future.

Keywords : High-resolution anorectal manometry; High-definition anorectal manometry; Equipments and catheters; Normal values; New parameters..

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