endoscopy

/en dos"keuh pee/, n., pl. endoscopies.
an examination by means of an endoscope.
[ENDO- + -SCOPY]

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Examination of the body's interior through an instrument inserted into a natural opening or an incision, usually as an outpatient procedure.

Endoscopes include the upper gastrointestinal endoscope (for the esophagus, stomach, and duodenum), the colonoscope (for the colon), and the bronchoscope (for the bronchial tubes). With fibre optics, much more maneuverable instruments can reach formerly inaccessible sites, while causing much less discomfort. Attachments can take tissue samples, excise polyps and small tumours, and remove foreign objects.

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▪ medical procedure
      medical examination of the interior of the body, usually through a natural body opening, by the insertion of a flexible, lighted optical shaft or open tube. Instruments used include the endoscope, a flexible tube for examination of the esophagus, stomach, and duodenum, and the bronchoscope, a flexible tube for examination of the bronchial tubes. These are passed through the mouth into the respective organs. The examinations are usually performed in a hospital or a physician's office with local anesthesia. The colonoscope, a flexible tube used for examination of the colon, and the proctosigmoidoscope, a similar instrument used for examination of the rectum and lower colon, are passed through the anal orifice; mild sedation and pain medication are typically administered during these procedures. The cystoscope, a lighted rod, is passed through the urethra for examination of the bladder with local, spinal, or general anesthesia. Today these procedures are generally accompanied by the use of camera or video technology in order to collect images of the tissues being examined. In addition, endoscopes may be designed with digital modifications that facilitate the visualization of tissues.

      Three endoscopic procedures require incisions for the introduction of the lighted shaft. The thoracoscope permits examination of the chest cavity and surface of the lungs through a small incision between the ribs. The peritoneoscope (laparoscopy) allows examination of the abdominal cavity and lower surfaces of the liver and gallbladder through a small incision in the abdominal wall. The culdoscope permits examination of the female pelvic organs through a small vaginal incision.

      Fibre-optic (fibre optics) endoscopes are pliable, highly maneuverable instruments that allow access to channels in the body that older, semirigid instruments cannot access at all or can access only at great discomfort to the patient. Composed of multiple hairlike glass rods bundled together, these instruments can be more easily bent and twisted, and the intense light enables the endoscopist to see around corners as well as forward and backward. Accessories can be added to the instrument that make it possible to obtain cell and tissue samples, excise polyps and small tumours, and remove foreign objects.

      Although fibre-optic endoscopes can be used to visualize the stomach and duodenum, they are unable to reach farther into the small intestine. As a result, examination of the small intestine may require the use of wireless capsule endoscopy (video capsule endoscopy), which consists of a pill-sized camera that is swallowed. The camera transmits data to sensors that are attached to the abdomen with adhesive, and a data recorder that stores image information collected by the camera is attached to a belt worn around the waist. In most cases, the sensors and belt are worn for a period of eight hours, during which time the camera capsule obtains images of nearly the entire length of the small intestine. The images stored in the data recorder are downloaded onto a computer for analysis. The capsule eventually travels the length of the gastrointestinal tract and is excreted in a bowel movement.

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Universalium. 2010.

Look at other dictionaries:

  • Endoscopy — En*dos co*py, n. (Med.) The art or process of examination or treatment by means of an endoscope. [1913 Webster] …   The Collaborative International Dictionary of English

  • endoscopy — 1861, from ENDO (Cf. endo ) + oscopy (see SCOPE (Cf. scope)) …   Etymology dictionary

  • Endoscopy — For the notion in mathematics introduced by Langlands, see Endoscopic group. Endoscopy Intervention An example of a flexible endoscope MeSH …   Wikipedia

  • Endoscopy — Ein Endoskop (griechisch ἔνδον éndon ‚innen‘; σκοπεῖν skopein ‚beobachten‘) ist ein Gerät, mit dem das Innere von lebenden Organismen, aber auch technischen Hohlräumen untersucht oder gar manipuliert werden kann. Ursprünglich für die… …   Deutsch Wikipedia

  • endoscopy — UK [enˈdɒskəpɪ] / US [enˈdɑskəpɪ] noun [countable/uncountable] Word forms endoscopy : singular endoscopy plural endoscopies medical a medical operation in which an endoscope (= a very small camera on a long thin tube) is put into someone s body… …   English dictionary

  • endoscopy — noun see endoscope …   New Collegiate Dictionary

  • endoscopy — noun the examination of a bodily orifice, canal or organ using an endoscope …   Wiktionary

  • endoscopy — Examination of the interior of a canal or hollow viscus by means of a special instrument, such as an endoscope. [see endoscope] peroral e. visual examination of interior …   Medical dictionary

  • endoscopy — en|dos|co|py [enˈdɔskəpi US ˈda: ] n [U] medical the medical examination of the inside of the body, using an endoscope …   Dictionary of contemporary English

  • endoscopy — en|dos|co|py [ en daskəpi ] noun count or uncount MEDICAL a medical operation in which an ENDOSCOPE (=a very small camera on a long thin tube) is put into someone s body to examine inside it …   Usage of the words and phrases in modern English

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