Experimental Construction of a "New" Eustachian Tube

Total laryngectomy and autogenous reconstruction observations in an experimental series in canines

“…This was done because our primary interest was t o determine the effectiveness of a pseudoepiglottis in preventing aspiration. From a technical standpoint, the pseudoepiglottis constructed from anterior esophageal wall was more readily achieved in our experimental models (Lapidot et al, 1970). Consequently, this technique was utilized in 21 of our dogs.…”

“…In our experience with the total laryngectomy and reconstruction, aspiration was the single most factor responsible for failure of the dogs t o survive (Ogura et al, 1962). We have attempted t o prevent this complication by means of constructing a pseudoepiglottis (Lapidot et al, 1965(Lapidot et al, , 1969(Lapidot et al, , 1970. In so doing we have altered the anatomy and physicology of the pharynx t o subserve the role of a simplified larynx for the three major functions of respiration, deglutition, and phonation.…”

Evolution of eustachian tube surgery

“…Subsequent attempts at improving middle ear aeration sought to bypass the ET entirely through creation of a new ventilation route. In 1967, Lapidot31 reported on transposition of Wharton's duct to create a conduit from the middle ear to the oral cavity. However, no proposal for valvular control was made, and the method was tested only on cadavers.…”

Tympano-nasopharyngeal shunt operation A new method of middle ear ventilation

“…However, in cases where the complete restoration of Eustachian tube function is hoped for, the Armstrong method is of immense value in preventing permanent changes in the middle ear. Lapidot and Kapila (1967) proposed a tympano-oral shunt operation in which Wharton's duct was resected and transplanted to connect the anterior part of the middle ear with the oral cavity. This method was tested only in cadavers.…”