A Practical Guide to the Eustachian Tube by John L. Dornhoffer

By John L. Dornhoffer

This publication, written via overseas specialists, is an in depth consultant to the Eustachian tube, with emphasis on these points of such a lot relevance to the practitioner. the outlet chapters rfile the scientific anatomy and supply crucial info on body structure, with clarification of the hot version of tubal mechanics. prognosis and remedy for the patulous Eustachian tube are then mentioned, putting particular emphasis on a unique conservative therapy routine that has confirmed to be a leap forward for sufferers with this scientific syndrome. an additional huge bankruptcy examines total functionality of the Eustachian tube, essentially from the center ear surgeon’s standpoint. Tuboplasty tactics, together with laser tuboplasty, and tympanoplasty are defined, and the results of other center ear pathologies for surgical procedure are defined. The formerly unpublished therapy equipment which are defined during this booklet could be priceless in making sure the very best scientific outcomes.

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Extra info for A Practical Guide to the Eustachian Tube

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Surprisingly there are no long-term results published. Kong et al. [85] injected paste-like minced autologous tragal cartilage submucosally into the pharyngeal orifice of the Eustachian tubes of two 28 3 Pathophysiology of the Eustachian Tube: The Patulous Eustachian Tube Fig. 2 Axial MRI study of a patient with pET after (successful) injection of Teflon® paste in the paratubal space. mpm medial pterygoid muscle, lpm lateral pterygoid muscle, tvp tensor veli palatini muscle, tc tubal cartilage, td Teflon depot patients.

Using MRI Pahnke et al. [137] showed a reduction of the Ostmann’s fat pad in 7 of 10 patients with the symptoms of a pET. Modifications of the nasopharyngeal anatomy by surgical procedures, such as adenoidectomy or tonsillectomy with postoperative scarring, can also be a cause of a pET [150]. Likewise, scarring after irradiation of the cranium can also result in a closing failure of the Eustachian tube, which can be shown using tubal manometry in about 50 % of the patients [22]. After a retrospective analysis of 16 patients with a pET, Todd and Saunders [199] postulated a correlation between the frequency of chronic suppurative otitis media during childhood and the occurrence of a pET in adults.

1 Alloplastic Materials Since the origination of tympanoplasty, alloplastic materials have been used extensively and uncritically. However, as the biology of the implantation site in the middle ear has become better understood, both biocompatible and unacceptable materials have emerged. 1. The majority of acceptable materials are fashioned from hydroxyapatite, high-density porous ethylene and titanium (Fig. 8a, b). Despite histological studies showing adverse reaction to ethylene, high-density porous ethylene seems to be acceptable as ossicle prosthesis material.

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