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Biomedical subjects

M Gersdorff

Publications and source records attributed to M Gersdorff.

At least 109 records · Page 6Linked to original sources
PubMed1980

[Clinical value of multifrequential tympanometry].

Multi-frequency tympanometry brings into evidence, in the normal subject, three types of tympanogram of acoustic impedance. The frequency of the tone probe showing a W tympanogram seems to be the key element. This frequency is close to that of the resonance of the ear, which is altered in the case of pathology of the tympano-ossicular system and of increase in the pressure of the endolabyrinthine fluids. Multi-frequency tympanometry facilitates the differential diagnosis between ankylosis and a discontinuity of the ossicular chain. It also objectifies the variations in the pressure of the inner-ear fluids in Ménière's disease.

Acoustic Impedance Tests↗
PubMed1980

[Tolerance of Plasti-Pore prostheses in ear surgery].

The authors describe the tolerance of Plasti-Pore prosthetic ossicles in reconstructive surgery of the middle ear. Tolerance is excellent where cartilage is interposed between the prosthesis and the tympanic graft (0% failure). Without such insertion of cartilage, the authors note a protrusion by the prosthesis with tympanic perforation in 19.3% of cases, except in those where the tympanic graft is a homograft (0% failure). In the case of a tympanic graft using temporal aponeurosis it is therefore advisable to interpose a fragment of cartilage. This insertion of cartilage does not appear necessary in the case of a tympanic homograft.

Adolescent↗