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

  • Neurogastroenterology and Motility Disorders of the Gastrointestinal Tract (S Rao, Section Editor)
  • Published:
Current Gastroenterology Reports Aims and scope Submit manuscript

Abstract

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.

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Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance

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Authors and Affiliations

  1. Department of Internal Medicine, Konkuk University Chungju Hospital, Chungju, South Korea

    Myeongsook Seo

  2. Department of Biomedical Engineering, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea

    Segyeong Joo

  3. Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea

    Kee Wook Jung, Eun Mi Song & Seung-Jae Myung

  4. Division of Gastroenterology and Hepatology, Department of Medicine, Augusta University, Augusta, GA, USA

    Satish S. C. Rao

Authors
  1. Myeongsook Seo
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  2. Segyeong Joo
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  3. Kee Wook Jung
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  4. Eun Mi Song
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  5. Satish S. C. Rao
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  6. Seung-Jae Myung
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Corresponding authors

Correspondence to Kee Wook Jung or Seung-Jae Myung.

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The authors declare that they have no conflict of interest.

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This article does not contain any studies with human or animal subjects performed by any of the authors.

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This article is part of the Topical Collection on Neurogastroenterology and Motility Disorders of the Gastrointestinal Tract

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Seo, M., Joo, S., Jung, K.W. et al. New Metrics in High-Resolution and High-Definition Anorectal Manometry. Curr Gastroenterol Rep 20, 57 (2018). https://doi.org/10.1007/s11894-018-0662-5

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  • DOI: https://doi.org/10.1007/s11894-018-0662-5

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