The Laryngoscope · 1999
Effect of laser uvulopalatoplasty on middle ear function.
Клиническое исследованиеСтатьяОбзорНазвание и аннотация: Перевод пока не подготовлен
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Marais J, Armstrong M W
Аннотация
OBJECTIVES: Palatal musculature is known to be responsible for the active opening of the eustachian (auditory) tube. Because laser-assisted uvulopalatoplasty (LAUP) may involve partial division of these muscles, the effect of this procedure on middle ear pressures (MEPs) and middle ear volumes (MEVs) was investigated.
STUDY DESIGN: A controlled interventional trial with one limb receiving treatment and the other none. Preoperative and postoperative measurements were carried out in both groups.
METHODS: A control group of 15 normal volunteers and a study group of 22 patients undergoing LAUP all of whom had normal ears and type A tympanograms before the trial were recruited. Repeat tympanometry was carried out after 3 months in both groups. The results of MEP and MEV were recorded for both groups and analyzed by the Mann-Whitney U test.
RESULTS: A trend toward reduced MEP and MEV was noted in the LAUP group, but did not achieve statistical significance. A study with more patients may achieve significance.
CONCLUSIONS: No significant effects on middle ear pressures or volumes 3 months after LAUP were demonstrated. A much larger study may, however, arrive at a statistically significant result and further work is warranted. Relevant palatal and tubal anatomy is discussed and a brief review of the relevant literature is given.
STUDY DESIGN: A controlled interventional trial with one limb receiving treatment and the other none. Preoperative and postoperative measurements were carried out in both groups.
METHODS: A control group of 15 normal volunteers and a study group of 22 patients undergoing LAUP all of whom had normal ears and type A tympanograms before the trial were recruited. Repeat tympanometry was carried out after 3 months in both groups. The results of MEP and MEV were recorded for both groups and analyzed by the Mann-Whitney U test.
RESULTS: A trend toward reduced MEP and MEV was noted in the LAUP group, but did not achieve statistical significance. A study with more patients may achieve significance.
CONCLUSIONS: No significant effects on middle ear pressures or volumes 3 months after LAUP were demonstrated. A much larger study may, however, arrive at a statistically significant result and further work is warranted. Relevant palatal and tubal anatomy is discussed and a brief review of the relevant literature is given.