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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 II: Colonoscopy01:25

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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 I: Esophagogastroduodenoscopy01:29

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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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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

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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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Urologic Endoscopic Procedure: Cystoscopic Examination01:28

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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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Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

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Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due...
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Related Experiment Video

Updated: Mar 15, 2026

E-Patient Counseling Trial E-PACO: Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
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Wireless Capsule Enteroscopy in Healthy Volunteers.

Ilja Tachecí1, Petr Bradna2, Tomáš Douda2

  • 1Second Department of Internal Medicine - Gastroenterology; Charles University, Faculty of Medicine and University Hospital, Hradec Králové, Czech Republic. tacheci@gmail.com.

Acta Medica (Hradec Kralove)
|September 18, 2016
PubMed
Summary

Wireless capsule endoscopy revealed minor abnormalities in 74% of healthy volunteers, but these findings were clinically insignificant over 36 months.

Keywords:
36-month follow-upHealthy volunteersSmall bowelWireless capsule enteroscopy

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Area of Science:

  • Gastroenterology
  • Medical Imaging

Background:

  • Defining the normal endoscopic appearance of the small bowel is crucial for accurate diagnosis.
  • Previous studies lacked comprehensive data on asymptomatic individuals.

Purpose of the Study:

  • To prospectively define the normal small bowel endoscopy appearance in healthy volunteers.
  • To assess the clinical significance of minor endoscopic findings.

Main Methods:

  • Prospective study involving 42 healthy volunteers.
  • Wireless capsule endoscopy, clinical evaluation, laboratory tests, and 36-month follow-up.
  • Health-status questionnaire completion.

Main Results:

  • 26% of subjects had completely normal endoscopic findings.
  • 74% of asymptomatic subjects exhibited minor findings, including erosions, red spots, diminutive polyps, and vascular lesions.
  • All 42 volunteers remained asymptomatic with normal laboratory results throughout the 36-month follow-up.

Conclusions:

  • A significant proportion of healthy individuals present with abnormal findings on wireless capsule endoscopy.
  • These findings lack clinical relevance and do not indicate pathology in asymptomatic individuals.
  • Findings necessitate cautious interpretation of control group data in wireless capsule endoscopy studies.