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Rhinolaryngoscopy for the Allergist
Published in Pudupakkam K Vedanthan, Harold S Nelson, Shripad N Agashe, PA Mahesh, Rohit Katial, Textbook of Allergy for the Clinician, 2021
Jerald W Koepke, William K Dolen
The patient is reminded that he may talk to the examiner during the examination. With good anesthesia, the procedure is not painful although the patient may report pressure from the endoscope. The patient should be asked to communicate any discomfort to the examiner so that the endoscope may be withdrawn from that area.
The Respiratory System and Its Disorders
Published in Walter F. Stanaszek, Mary J. Stanaszek, Robert J. Holt, Steven Strauss, Understanding Medical Terms, 2020
Walter F. Stanaszek, Mary J. Stanaszek, Robert J. Holt, Steven Strauss
The fiberoptic bronchoscope is an instrument utilized for visual examination of the bronchi through the procedure of bronchoscopy and may be used to obtain bronchial brushings and biopsies. Mediastinoscopy is the examination of the mediastinum and its lymph nodes, particularly in suspected malignancy. Use of an endoscope to inspect the larynx is laryngoscopy. Thoracoscopy denotes examination of the pleural cavity. Fluoroscopy is a type of radiographic technique that allows visualization of the thoracic contents In a dynamic manner and provides a range of views.
Telescopes for Inner Space: Fiber Optics and Endoscopes
Published in Suzanne Amador Kane, Boris A. Gelman, Introduction to Physics in Modern Medicine, 2020
Suzanne Amador Kane, Boris A. Gelman
Medical endoscopes go by specific names that are determined by which parts of the body each scope is used to image. A partial listing is given in Table 2.2. Many different types exist, each designed for a specific application. Endoscopes are used for examining the inside of the body; examples include the colonoscopes and sigmoidoscopes mentioned earlier. Other surgical procedures performed on the gastrointestinal tract use endoscopes inserted through the mouth and esophagus, while bronchoscopes allow access to the larger passages of the respiratory tract.
Uniportal versus biportal endoscopic spine surgery: a comprehensive review
Published in Expert Review of Medical Devices, 2023
There are several characteristics of the endoscopic approach compared to the open or microscopic approach: 1) moving the eye near the pathologic lesions, 2) the keyhole approach, and 3) the requirement of the working channel. First, the visual device is usually positioned in front of the lesion using a surgical endoscope, and the endoscope can be moved according to the surgeon’s requirements regarding the pathology. Therefore, even with a small skin incision, surgeons can attain a wide angle of vision. Second, the surgical approach can be performed through a small keyhole, and there is no need for a wide skin incision or muscle retraction. A direct bypass is possible under local anesthesia. Third, a specially designed working channel is required to insert the surgical devices or endoscopes. These working channels ensure a clear visual field and allow for tissue manipulation.
Intraoperative localization of gastrointestinal tumors by magnetic tracer technique during laparoscopic‐assisted surgery (with video)
Published in Scandinavian Journal of Gastroenterology, 2021
Guifang Lu, Jing Li, Xiaopeng Yan, Xuejun Sun, Yan Yin, Xinlan Lu, Feng Ma, Fei Ma, Jianbao Zheng, Wei Zhao, Yi Lv, Mudan Ren, Shuixiang He
Accurate localization of the lesion is a prerequisite for successful surgery. Intraoperative endoscopy can be used to identify tumors and determine the extent of resection [9,10]; however, this requires experienced endoscopists, thus increasing technical burden and operation time. Moreover, massive amounts of intestinal gas could negatively affect the operation and visual field of surgery. Intraoperative endoscopy can also significantly increase the risk for infection due to the use of non-autoclaved or improperly sterilized endoscopes. Preoperative endoscopic carbon nanoparticle tattooing is an effective localization technique [11]. In addition, India ink and indocyanine green have been proposed as endoscopic tattooing agents for preoperative localization [12,13]. However, widespread diffusion of marker material may contaminate the surgical field, resulting in a significantly larger stained area than the actual tumor area, leading to inaccurate localization of the lesion. Additionally, complications, such as peritonitis and colitis, are obstacles to preoperative endoscopic tattooing.
Can single-use bronchoscopes help prevent nosocomial COVID-19 infections?
Published in Expert Review of Medical Devices, 2021
Sarah Barron, Marcus Peter Kennedy
The rationale for this advice rests on the fact that reusable flexible bronchoscopes (RFBs) have long been associated with nosocomial transmission of infection [23] and there is less handling associated with single-use devices. There is a rigorous reprocessing procedure involved in the decontamination and disinfection of RFBs [15,24]. The mechanical cleaning, leak testing, brushing, and flushing are all performed manually, which means that even after the high-risk procedure has been completed, additional personnel will be exposed to the bronchoscope (and any contaminants therein) to reprocess it for repeated usage. This is followed by disinfection in an automated endoscope reprocessor (AER). Even with supposed adherence to the reprocessing guidelines, one large study from three New York Hospitals including two with lung transplant programs identified human DNA and protein on all and disease-causing organisms on half reusable patient ready scopes, though no evidence to date has demonstrated the persistence of viral pathogens in particular [25].