Evidence map›Paper›PMID 33776372›Full record

ArticleWorld journal of gastroenterology2021

Study on the characteristics of intestinal motility of constipation in patients with Parkinson's disease.

Mei Zhang, Shuang Yang, Xiao-Cui Li, Hong-Ming Zhu, Ding Peng, Bang-Yi Li, Tian-Xu Jia, Chen Tian

Open access · hybridAbstract read
In one paragraph

Article in World journal of gastroenterology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Pan-Gut Dysmotility in Parkinson Disease.Gastroenterology & hepatology · 2025
    Article
  3. Lewy body diseases and the gut.Molecular neurodegeneration · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Gastrointestinal Symptoms and Dopamine Transporter Asymmetry in Early Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2022
    Article
  8. Electroacupuncture Modulates 5-HTEvidence-based complementary and alternative medicine : eCAM · 2022
    Article
  9. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Mei ZhangDepartment of Gastroenterology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China. zhang2955@sina.com.
Shuang YangDepartment of Gastroenterology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
Xiao-Cui LiDepartment of Gastroenterology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
Hong-Ming ZhuDepartment of Gastroenterology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
Ding PengDepartment of Gastroenterology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
Bang-Yi LiDepartment of Gastroenterology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
Tian-Xu JiaDepartment of Gastroenterology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
Chen TianDepartment of Gastroenterology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
Capital Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundConstipation is one of the most important nonmotor symptoms in Parkinson's disease (PD) patients, and constipation of different severities is closely related to the pathogenesis of PD. PD with constipation (PDC) is considered a unique type of constipation, but its mechanism of formation and factors affecting its severity have been less reported. Understanding the gastrointestinal motility characteristics and constipation classification of PDC patients is essential to guide the treatment of PDC. In this study, the colonic transit test and high-resolution anorectal manometry were used to identify the intestinal motility of PDC to provide a basis for the treatment of PDC.

aimTo investigate the clinical classification of PDC, to clarify its characteristics of colonic motility and rectal anal canal pressure, and to provide a basis for further research on the pathogenesis of PDC.

methodsTwenty PDC patients and 20 patients with functional constipation (FC) who were treated at Xuanwu Hospital of Capital Medical University from August 6, 2018 to December 2, 2019 were included. A colonic transit test and high-resolution anorectal manometry were performed to compare the differences in colonic transit time, rectal anal canal pressure, and constipation classification between the two groups.

resultsThere were no statistically significant differences in sex, age, body mass index, or duration of constipation between the two groups. It was found that more patients in the PDC group exhibited difficulty in defecating than in the FC group, and the difference was statistically significant. The rectal resting pressure, anal sphincter resting pressure, intrarectal pressure, and anal relaxation rate in the PDC group were significantly lower than those in the FC group. The proportion of paradoxical contractions in the PDC group was significantly higher than that in the FC group. There was a statistically significant difference in the type composition ratio of defecatory disorders between the two groups (

conclusionPatients with PDC and FC have severe functional dysmotility of the colon and rectum, but there are certain differences in segmental colonic transit time and rectal anal canal pressure between the two groups.

Indexed as

Parkinson DiseaseAnal CanalColonConstipationGastrointestinal MotilityGastrointestinal TransitHumansManometryRectumColonic transit timeHigh-resolution anorectal manometryParkinson's diseaseParkinson's disease with constipation

Identifiers

PMID33776372
PMCPMC7985734
OpenAlexW3138736830

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.