New Metrics in High-Resolution and High-Definition Anorectal Manometry

Purpose of Review To review recently published diagnostic methods that use high-resolution (HR-) or high-definition- (HD-) anorectal manometry (ARM) techniques. Recent Findings The integrated pressurized volume (IPV) is a new measure based on spatiotemporal plots obtained from HR-ARM. The IPV may be...

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Bibliographic Details
Published in:Current gastroenterology reports 2018-12, Vol.20 (12), p.57-57, Article 57
Main Authors: Seo, Myeongsook, Joo, Segyeong, Jung, Kee Wook, Song, Eun Mi, Rao, Satish S. C., Myung, Seung-Jae
Format: Article
Language:English
Subjects:
Anal Canal - physiology
Anal Canal - physiopathology
Anus
Asymptomatic
Catheters
Constipation
Constipation - diagnosis
Constipation - physiopathology
Defecation
Defecation - physiology
Esophagus
Fecal incontinence
Fecal Incontinence - diagnosis
Fecal Incontinence - physiopathology
Gastroenterology
Humans
Manometry - instrumentation
Manometry - methods
Medicine
Medicine & Public Health
Neurogastroenterology and Motility Disorders of the Gastrointestinal Tract (S Rao
Patients
Pressure
Rectal Diseases - diagnosis
Rectal Diseases - physiopathology
Rectum - physiology
Rectum - physiopathology
Section Editor
Sensors
Topical Collection on Neurogastroenterology and Motility Disorders of the Gastrointestinal Tract
Variables
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Summary:Purpose of Review To review recently published diagnostic methods that use high-resolution (HR-) or high-definition- (HD-) anorectal manometry (ARM) techniques. Recent Findings The integrated pressurized volume (IPV) is a new measure based on spatiotemporal plots obtained from HR-ARM. The IPV may be clinically useful for improving the prediction of abnormal balloon expulsion test in patients with constipation and for discriminating patients with anorectal disorders from asymptomatic controls. Combination of IPV parameters was superior to conventional manometric parameters in predicting the responsiveness to biofeedback therapy. Moreover, several novel parameters including the HR-ARM resting integral, HR-ARM squeeze profile, and anorectal asymmetry index may each be useful as predictive factors for identifying patients with fecal incontinence. Summary HR- and HD-ARM are increasingly performed worldwide for evaluation of anorectal function. Here, we describe new metrics whose clinical significance has not been fully established. Further standardization and validation of these metrics could provide clinically important new information and could help improve our understanding of the pathophysiology of anorectal disorders.
ISSN:1522-8037
1534-312X
DOI:10.1007/s11894-018-0662-5