Magnetically Controlled Capsule Endoscopy in Visualization of the UGI and Small Intestine

Feasibility of the Magnetically Controlled Capsule Endoscopy in One Time Visualization of the Upper Gastrointestinal Tract and Small Intestine

In this study, we retrospectively analyzed the videos of combined upper digestive tract and small intestine examination under MCE, so as to clarify the feasibility and diagnostic efficacy of MCE in one-time examination of the upper gastrointestinal and small intestinal mucosa.

Study Overview

• Status: Recruiting
• Conditions: Stomach Diseases; Small Intestine Disease
• Intervention / Treatment: Other: UGI+SB

Detailed Description

Magnetically controlled capsule endoscopy (MCE), with equally favorable diagnostic accuracy as conventional endoscopy, has become a painless noninvasive diagnostic modality in clinical practice. The more than 8 hours battery life of the MCE enables a further examination of the small bowel. In addition, it has been demonstrated that magnetic steering of capsule endoscopy improves the completion rate of small bowel examination by facilitating passage of the capsule through the pylorus, which further supported MCE as a practical modality for examination of both the stomach and small bowel. In this study, we retrospectively analyzed the videos of combined upper digestive tract and small intestine examination under MCE, so as to clarify the feasibility and diagnostic efficacy of MCE in one-time examination of the upper gastrointestinal and small intestinal mucosa.

• Study Type: Observational
• Enrollment (Anticipated): 593

Contacts and Locations

Study Locations

• China
  • Shanghai, China, 200433
    • Recruiting
    • Changhai Hospital
    • Sub-Investigator: Yawei Liu

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Patients who underwent upper gastrointestinal and small intestinal mucosal examination under MCE at Shanghai Changhai Hospital and Chinese PLA General Hospital after January 2020.

Description

Inclusion Criteria:

1. Age ≥ 18 years old.
2. Those who underwent upper gastrointestinal and small intestinal mucosal examination under magnetically controlled capsule endoscopy at Shanghai Changhai Hospital and Chinese PLA General Hospital after January 2020.
3. Able to provide informed consent.

Exclusion Criteria:

1. Patients who fail to follow the prescribed procedures for magnetically controlled capsule endoscopy;
2. Patients who only undergo gastric examination under magnetically controlled capsule endoscopy;
3. Patients who only undergo small bowel examination under magnetic control capsule endoscopy;
4. The patient's basic information in the database is incomplete；
5. Patient fail to be followed up.

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
UGI+SB; Patients who underwent combined upper digestive tract and small intestine examination under MCE.	Other: UGI+SB; Patients who underwent combined upper digestive tract and small intestine examination under MCE.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Success rate of UGI and small-bowel examination	The success rate of upper gastrointestinal tract and small-bowel examination under MCE is evaluated by the technical success rate, a composite outcome including the successful viewing of esophagus, stomach and duodenum, and complete small-bowel examination.	2 weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Visualization of the esophagus	Visualization of the esophagus indicated by the number of images captured for Z-line and how many quadrants of the Z-line were observed. Circumferential visualization of the Z-line is defined by quadrants as follows: less than 2 quadrants (< 50%) observed; at least 2 quadrants (50%-75%) observed; at least 3 quadrants (>75%) observed; and entire structure (100%) observed.	2 weeks
Visualization score of the gastric mucosa	Visualization score of the gastric mucosa To objectively evaluate the complete visualization of the gastric mucosa in the 6 anatomic landmarks (cardia, fundus, body, angulus, antrum, and pylorus), a 3-point grading scale was used: 1, poor (<70% of the mucosa was observed), 2, fair (70%-90% of the mucosa was observed), and 3, good (>90% of the mucosa was observed).	2 weeks
Visualization of the small bowel	Visualization of the small bowel was determined by the percentage of time during which the small-bowel view was clear, defined as not obscured more than 50% of the screen view. The clear-viewing percentage of the total small-bowel transit time assessed by a 4-point scale :0, less than 25%; 1, 25% to 49%; 2, 50% to 75%; and 3, greater than 75%.	2 weeks
Examination time of esophagus, stomach, duodenum and small bowel	Examination-related parameters included esophageal transit time (ETT), gastric examination time (GET), gastric transit time (GTT), pylorus transit time (PTT), small bowel transit time (SBTT). ETT is defined as the time between the first esophageal image and the first gastric image. GTT is defined as the time between the first gastric image and the first duodenal image. GET is defined as the time for examination of gastric primary anatomic landmarks twice. PTT is defined as the time between the first pyloric image and the first duodenal image. SBTT is defined as the time between the first duodenal image and the first cecal image.	1 month
Detection rate of lesions	The detection rate of lesions in different digestive part (esophagus, stomach, duodenum, small intestine) found by MCE.	1 month
Adverse events during MCE procedure	The presence of any adverse events during MCE procedure will be recorded.	1 month

Collaborators and Investigators

• Sponsor: Changhai Hospital
• Collaborators: Chinese PLA General Hospital
• Investigators: Principal Investigator: Zhuan Liao, Changhai Hospital,Shanghai,China

Publications and helpful links

General Publications

• Liao Z, Hou X, Lin-Hu EQ, Sheng JQ, Ge ZZ, Jiang B, Hou XH, Liu JY, Li Z, Huang QY, Zhao XJ, Li N, Gao YJ, Zhang Y, Zhou JQ, Wang XY, Liu J, Xie XP, Yang CM, Liu HL, Sun XT, Zou WB, Li ZS. Accuracy of Magnetically Controlled Capsule Endoscopy, Compared With Conventional Gastroscopy, in Detection of Gastric Diseases. Clin Gastroenterol Hepatol. 2016 Sep;14(9):1266-1273.e1. doi: 10.1016/j.cgh.2016.05.013. Epub 2016 May 20.
• Jiang X, Qian YY, Liu X, Pan J, Zou WB, Zhou W, Luo YY, Chen YZ, Li ZS, Liao Z. Impact of magnetic steering on gastric transit time of a capsule endoscopy (with video). Gastrointest Endosc. 2018 Oct;88(4):746-754. doi: 10.1016/j.gie.2018.06.031. Epub 2018 Jul 11.
• Luo YY, Pan J, Chen YZ, Jiang X, Zou WB, Qian YY, Zhou W, Liu X, Li ZS, Liao Z. Magnetic Steering of Capsule Endoscopy Improves Small Bowel Capsule Endoscopy Completion Rate. Dig Dis Sci. 2019 Jul;64(7):1908-1915. doi: 10.1007/s10620-019-5479-z. Epub 2019 Feb 6.
• Chen X, Gao F, Zhang J. Screening for Gastric and Small Intestinal Mucosal Injury with Magnetically Controlled Capsule Endoscopy in Asymptomatic Patients Taking Enteric-Coated Aspirin. Gastroenterol Res Pract. 2018 Nov 15;2018:2524698. doi: 10.1155/2018/2524698. eCollection 2018.
• Liu YW, Wang YC, Zhu JH, Jiang X, Zhou W, Zhang J, Liao Z, Linghu EQ. Magnetically controlled capsule endoscopy in one-time gastro-small intestinal joint examination: a two-centre experience. BMC Gastroenterol. 2022 May 4;22(1):222. doi: 10.1186/s12876-022-02302-0.

Study record dates

Study Major Dates

• Study Start (ACTUAL): September 27, 2021
• Primary Completion (ANTICIPATED): December 28, 2021
• Study Completion (ANTICIPATED): December 30, 2021

Study Registration Dates

• First Submitted: September 17, 2021
• First Submitted That Met QC Criteria: September 28, 2021
• First Posted (ACTUAL): October 6, 2021

Study Record Updates

• Last Update Posted (ACTUAL): October 6, 2021
• Last Update Submitted That Met QC Criteria: September 28, 2021
• Last Verified: September 1, 2021

More Information

Terms related to this study

• Keywords: capsule endoscopy
• Additional Relevant MeSH Terms: Digestive System Diseases; Gastrointestinal Diseases; Intestinal Diseases; Stomach Diseases
• Other Study ID Numbers: MCE for UGI+SB

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No