Expert Consensus Document: Diagnosis for Chronic Constipation with Faecal Retention in the Rectum Using Ultrasonography

Masaru Matsumoto, Noboru Misawa, Momoko Tsuda, Noriaki Manabe, Takaomi Kessoku, Nao Tamai, Atsuo Kawamoto, Junko Sugama, Hideko Tanaka, Mototsugu Kato, Ken Haruma, Hiromi Sanada, Atsushi Nakajima

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Chronic constipation is a common gastrointestinal disorder in older adults, and it is very important to manage chronic constipation. However, evaluating these subjective symptoms is extremely difficult in cases where patients are unable to express their symptoms because of a cognitive or physical impairment. Hence, it is necessary to observe the patient’s colonic faecal retention using objective methods. Ultrasonography observation for colonic faecal retention is useful for diagnosing constipation and evaluating the effectiveness of treatment. Since there was no standard protocol for interpreting rectal ultrasonography findings, we developed an observation protocol through an expert consensus. We convened a group of experts in the diagnosis and evaluation of chronic constipation and ultrasonography to discuss and review the current literature on this matter. Together, they composed a succinct, evidence-based observation protocol for rectal faecal retention using ultrasonography. We created an observation protocol to enhance the quality and accuracy of diagnosis of chronic constipation, especially rectal constipation. This consensus statement is intended to serve as a guide for physicians, laboratory technicians and nurses who do not specialise in ultrasound or the diagnosis of chronic constipation.

Original languageEnglish
Article number300
Issue number2
Publication statusPublished - 02-2022

All Science Journal Classification (ASJC) codes

  • Clinical Biochemistry


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