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Effect of Levator Veli Palatini Muscle Excision on Eustachian Tube Function
Erdem I. Cantekin, PhD;
William J. Doyle, PhD;
Charles D. Bluestone, MD
Arch Otolaryngol. 1983;109(5):281-284.
Abstract
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• The role of the levator veli palatini (LVP) muscle in eustachian tube (ET) physiology was investigated in five juvenile rhesus monkeys (Macaca mulatta). The baseline ET function and middle ear pressures were documented longitudinally for a period of six months prior to bilateral excision of the LVP muscle, and postoperative ET function and middle ear status were assessed for a period of five months. During the postoperative followup period, otitis media with effusion was not observed and middle ear pressure values remained within the normal baseline values. Parameters of ET function as measured by the forced-response test did not show any significant differences in comparison with baseline values. These findings provide additional evidence that the operational biomechanics of the ET are independent of the integrity of the LVP muscle, and that the tensor veli palatini is the only paratubal muscle responsible for normal active opening of the ET.
(Arch Otolaryngol 1983;109:281-284)
Author Affiliations
From the Department of Otolaryngology, University of Pittsburgh School of Medicine and Children's Hospital of Pittsburgh.
Footnotes
Accepted for publication Oct 26, 1982.
Read before the Midwinter Research Meeting of Association for Research in Otolaryngology, St Petersburg, Fla, Jan 20, 1982.
Reprint requests to Department of Otolaryngology, Children's Hospital of Pittsburgh, 125 De Soto St, Pittsburgh, PA 15213 (Dr Cantekin).
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