Chapter 70 : Transnasal esophagoscopy Flashcards
the original description of rigid esophagoscopy in clinical use was done by by ________ in 1891.
Adolf Kussmau
In 1957, a gastroenterologist named ________ and his colleagues revolutionized the world of endoscopy with the introduction of the first fiberoptic gastroscope.
Basil Hirschowitz
The main physical difference between a transnasal esophagoscope and a flexible endoscope used in conventional endoscopy (CE) is size. The diameter of a transnasal esophagoscope ranges roughly between ________ and ________ mm, depending upon the model, whereas flexible endoscopes used in CE are ________ to ________ mm
The main physical difference between a transnasal esophagoscope and a flexible endoscope used in conventional endoscopy (CE) is size. The diameter of a transnasal esophagoscope ranges roughly between 3 and 5 mm, depending upon the model, whereas flexible endoscopes used in CE are 10 to 12 mm
________ has been reported to be responsible for over 50% of adverse events associated with CE, such as aspiration, hypoventilation, vasovagal episodes, and airway obstruction
Intravenous sedation
The squamocolumnar junction can be recognized by the _____ which demarcates the interface between the light pink squamous mucosa and the red columnar gastric mucosa
Z line
The gastroesophageal junction is defined by this specific part of the gastric mucosa
proximal margin of the gastric folds
Proximal extension of the gastric rugae greater than 2 cm from the diaphragmatic compression indicates a ________
hiatal hernia
Esophageal motility can be grossly evaluated as the patient swallows, taking into account that normal esophageal transit is less than ________
13 seconds.
Options for additional laryngotracheal anesthetic include delivery through the working channel of the endoscope to produce a “________ ” or inhalation of aerosolized lidocaine through a jet nebulizer
laryngeal gargle
