The effects of fibrin tissue adhesive on the middle ear

AbstractThis study investigated the effects of fibrin glue (‘Tissucol’, Immuno Pty. Ltd.) in the middle and inner ear. Small amounts of the adhesive were used in 36 operations performed on 18 rabbits. The light microscopic examination of these ears four, eight and 12 weeks after surgery showed that the adhesive was well tolerated and that it did not have any toxic effecton on the middle ear or membranous labyrinth. The fibrin tissue adhesive can therefore safely be used to facilitate reconstructive middle-ear surgery and, with the aid of fasic, also for the closure of labyrinthine fistulae; or to achieve a definite seal of the oval window niche after stapes surgery.

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Experimental Use of Fibrin Tissue Adhesive in Middle Ear Surgery

The Laryngoscope ◽

10.1002/lary.1983.93.10.1310 ◽

1983 ◽

Vol 93 (10) ◽

pp. 1310-1313 ◽

Cited By ~ 29

Author(s):

Karl H. Siedentop ◽

David M. Harris ◽

Arthur Loewy

Keyword(s):

Middle Ear ◽

Tissue Adhesive ◽

Middle Ear Surgery ◽

Ear Surgery ◽

Fibrin Tissue Adhesive ◽

Experimental Use

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Optical coherence tomography of the oval window niche

The Journal of Laryngology & Otology ◽

10.1017/s0022215109004381 ◽

2009 ◽

Vol 123 (6) ◽

pp. 603-608 ◽

Cited By ~ 14

Author(s):

T Just ◽

E Lankenau ◽

G Hüttmann ◽

H W Pau

Keyword(s):

Optical Coherence Tomography ◽

Middle Ear ◽

Imaging Modality ◽

Oval Window ◽

Annular Ligament ◽

Middle Ear Surgery ◽

Optical Coherence ◽

Ear Surgery ◽

Temporal Bones

AbstractObjective:Optical coherence tomography was used to study the stapes footplate, both in cadaveric temporal bones and during middle-ear surgery.Materials and methods:Optical coherence tomography was conducted on five temporal bone preparations (from two children and three adults) and in eight patients during middle-ear surgery. A specially equipped operating microscope with integrated spectral domain optical coherence tomography apparatus was used for standard middle-ear surgical procedures.Results:This optical coherence tomography investigation enabled in vivo visualisation and documentation of the annular ligament, the different layers of the footplate and the inner-ear structures, both in non-fixed and fixed stapes footplates. In cases of otosclerosis and tympanosclerosis, an inhomogeneous and irregularly thickened footplate was found, in contrast to the appearance of non-fixed footplates. In both fixed and non-fixed footplates, there was a lack of visualisation of the border between the footplate and the otic capsule.Conclusions:Investigation of the relatively new technology of optical coherence tomography indicated that this imaging modality may assist the ear surgeon to assess the oval window niche intra-operatively.

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The ear

10.1093/med/9780198767831.003.0014 ◽

2021 ◽

pp. 497-518

Author(s):

Daniel R. van Gijn ◽

Jonathan Dunne

Keyword(s):

Inner Ear ◽

Temporal Bone ◽

Middle Ear ◽

Semicircular Canals ◽

Lateral Wall ◽

Oval Window ◽

External Ear ◽

Membranous Labyrinth ◽

Stapes Footplate ◽

Petrous Temporal Bone

The delicate yet definitive deflections of the pinna (wing/fin) of the external ear contribute to the collection of sound. The external acoustic meatus is responsible for the transmission of sounds to the tympanic membrane, which in turn separates the external ear from the middle ear. The middle ear is an air filled (from the nasopharynx via the eustachian tube), mucous membrane lined space in the petrous temporal bone. It is separated from the inner ear by the medial wall of the tympanic cavity – bridged by the trio of ossicles. The inner ear refers to the bony and membranous labyrinth and their respective contents. The osseus labyrinth lies within the petrous temporal bone. It consists of the cochlea anteriorly, semicircular canals posterosuperiorly and intervening vestibule – the entrance hall to the inner ear whose lateral wall bears the oval window occupied by the stapes footplate.

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Autoregulation of Human Inner Ear Blood Flow During Middle Ear Surgery with Propofol or Isoflurane Anesthesia During Controlled Hypotension

Anesthesia & Analgesia ◽

10.1213/00000539-199811000-00004 ◽

1998 ◽

Vol 87 (5) ◽

pp. 1002-1008

Author(s):

M. P. Preckel ◽

C. Ferber-Viart ◽

G. Leftheriotis ◽

C. Dubreuil ◽

R. Duclaux ◽

...

Keyword(s):

Blood Flow ◽

Inner Ear ◽

Middle Ear ◽

Middle Ear Surgery ◽

Controlled Hypotension ◽

Ear Surgery ◽

Isoflurane Anesthesia ◽

Human Inner Ear ◽

Inner Ear Blood Flow

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Key methods of identifying the horizontal facial nerve during difficult middle-ear surgery

The Journal of Laryngology & Otology ◽

10.1017/s0022215113000066 ◽

2013 ◽

Vol 127 (3) ◽

pp. 303-305

Author(s):

M I Syed ◽

M Madurska ◽

B F O'Reilly

Keyword(s):

Facial Nerve ◽

Middle Ear ◽

Granulation Tissue ◽

Oval Window ◽

Middle Ear Surgery ◽

Ear Surgery ◽

Early Stages

AbstractBackground:The key to avoiding damage to the horizontal facial nerve in middle-ear surgery is to formally identify the nerve in the early stages of the procedure.Methods:In the non-infected ear this can be achieved relatively easily by identifying the oval window niche. However, in the infected ear with cholesteatoma, the safest landmark to use is the processus cochleariformis, which can be identified by three different methods.Conclusion:In an infected ear that is full of granulation tissue and/or cholesteatoma, the horizontal facial nerve can be reliably identified by locating the processus cochleariformis using the three methods described. This avoids damage to the nerve and important structures around it.

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