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Related Concept Videos

Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

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Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers,...
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Endoscopic Procedures V: ERCP01:26

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Endoscopic Retrograde Cholangiopancreatography (ERCP) is a diagnostic procedure that combines endoscopy and fluoroscopy to diagnose and treat conditions related to the bile ducts, pancreatic ducts, and gallbladder. This procedure is beneficial for identifying and addressing blockages, gallstones, strictures, and tumors within the biliary or pancreatic systems. ERCP is both diagnostic and therapeutic, offering the ability to visualize and treat identified problems in one session.
Patient...
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Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
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Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

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An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:
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Urologic Endoscopic Procedure: Cystoscopic Examination01:28

Urologic Endoscopic Procedure: Cystoscopic Examination

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Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
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Related Experiment Video

Updated: Apr 5, 2026

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
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Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System

Published on: October 16, 2013

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Retained Capsule Endoscopy in a Large Tertiary Care Academic Practice and Radiologic Predictors of Retention.

Badr Al-Bawardy1, Giles Locke, James E Huprich

  • 1*Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota; and †Department of Radiology, Mayo Clinic, Rochester, Minnesota.

Inflammatory Bowel Diseases
|August 19, 2015
PubMed
Summary

Capsule retention is rare (0.3%) in patients without obstructive symptoms. Reviewing surgical history and prior imaging for small bowel (SB) anastomoses or obstruction can help prevent capsule retention.

Related Experiment Videos

Last Updated: Apr 5, 2026

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
15:49

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System

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Area of Science:

  • Gastroenterology
  • Medical Imaging
  • Endoscopy

Background:

  • Capsule retention rates vary widely (1-13%).
  • Identifying risk factors and predictive imaging findings is crucial for patient safety.
  • This study addresses capsule retention in a large, diverse patient cohort.

Purpose of the Study:

  • Determine the incidence, risk factors, and clinical outcomes of capsule retention.
  • Define cross-sectional imaging findings predictive of capsule retention.
  • Evaluate the utility of prior imaging in predicting capsule retention.

Main Methods:

  • Retrospective review of capsule endoscopy (CE) examinations (2002-2013).
  • Analysis of patient demographics, CE indications, and management.
  • Radiologic image review (CT scans) by a blinded gastrointestinal radiologist for strictures, partial obstruction, or small bowel (SB) anastomoses.

Main Results:

  • Capsule retention occurred in 0.3% of cases (17 retentions in 15 patients).
  • Obscure gastrointestinal bleeding was the most common indication for CE.
  • Patients with retention had higher rates of SB anastomoses (88% vs. 23%) and partial obstruction (63% vs. 38%) compared to controls.

Conclusions:

  • Capsule retention is infrequent (0.3%) in tertiary care patients without obstructive symptoms.
  • Prior surgical history of SB anastomoses and imaging evidence of obstruction are key risk factors.
  • Reviewing these factors can help mitigate the risk of capsule retention.