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. 2024 Jul 29;24(1):238.
doi: 10.1186/s12876-024-03309-5.

Influence of the examination position and distension medium on the rectal sensory test in patients with functional constipation

Chang-Fang Xiao #  1 , Yi-Fan Li #  1 , Yang-Yang Sun  1 , Ling-Yun Meng  1 , Jing-Wen Wu  1 , Min Wang  1 , Yong-Qing Cao  1 , Chen Wang  1 , Yi-Bo Yao  2
Affiliations

Influence of the examination position and distension medium on the rectal sensory test in patients with functional constipation

Chang-Fang Xiao et al. BMC Gastroenterol. .

Abstract

Purpose: To evaluate the impact of two different parameters (body position and distension medium) on the rectal sensory test in patients with functional constipation and provide data support for the development of standardized operating procedures in clinical practice.

Methods: Based on a single-center process of the rectal sensory test, 39 patients with functional constipation were recruited for rectal sensory test under different body positions and distension mediums.

Results: Among the items of the Constipation Scoring System, the score of frequency of bowel movements showed a negative correlation with the first constant sensation volume (r = -0.323, P = 0.045). Conversely, the score of painful evacuation effort showed a positive correlation with the desire to defecate volume (r = 0.343, P = 0.033). There was a statistically significant difference in the first constant sensation volume (when the distension medium was gas) measured in different body positions (left lateral position, sitting position, squatting position), and the data measured in the squatting position were significantly higher than those in left lateral position (P < 0.05). In terms of research on distension medium, it was found that the first constant sensation volume measured in the squatting position (when the distension medium was water) was significantly lower than that of gas (P < 0.05).

Conclusion: For patients with functional constipation, there are differences in the results of rectal sensory tests between body positions and distension mediums. When conducting multicenter studies, it is necessary to unify the standard operating procedure (SOP) for operational details to ensure consistency and reliability of the test results.

Keywords: Body position; Distension medium; Functional constipation; Rectal hyposensitivity; Sensory threshold measurement.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
The schematic diagram of the fixing the catheter and the position of the patient for examination. (A) a piece of transparent adhesive tape was used to fix the catheter to the left perianal skin 1–2 cm from the anus; (B) left lateral position; (C) squatting position; (C) sitting position
Fig. 2
Fig. 2
Relationships between the constipation scale and rectal sensory function. Abbreviations: * indicates p < 0.05, FCSV: first constant sensation volume, DDV: desire to defecate volume, MTV: maximum tolerated volume. FCSV, DDV and MTV were tested in the left lateral position using gas as the distension medium
See this image and copyright information in PMC

References

    1. Bharucha AE, Wald A. Chronic constipation. Mayo Clin Proc. 2019;94(11):2340–57. 10.1016/j.mayocp.2019.01.031 - DOI - PMC - PubMed
    1. Black CJ, Ford AC. Chronic idiopathic constipation in adults: epidemiology, pathophysiology, diagnosis and clinical management. Med J Aust. 2018;209(2):86–91. 10.5694/mja18.00241 - DOI - PubMed
    1. Ghoshal UC, Sachdeva S, Pratap N, Verma A, K Ar Yampudi A, Misra A, Abraham P, Bhatia SJ, Bhat N, Chandra A. Indian consensus on chronic constipation in adults: a joint position statement of the Indian Motility and Functional Diseases Association and the Indian Society of Gastroenterology. Indian J Gastroenterol 2018. - PMC - PubMed
    1. Hanifah O. Fatima; Safira; Alatas; Badriul; Hegar; William; Cheng; Arnesya, Epidemiology of Paediatric constipation in Indonesia and its association with exposure to stressful life events. BMC Gastroenterol 2018. - PMC - PubMed
    1. Mill M, Koppen I, Benninga MA. Controversies in the management of functional constipation in children. Curr Gastroenterol Rep. 2020;21(6):23–.10.1007/s11894-019-0690-9 - DOI - PubMed

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