Vol.98 No.5 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 98 No. 5 May 2005
A Study of 209 Consecutive Cases of Middle Ear Surgery
in the Oto-rhino-laryngological Surgi-center
Mikino Kikura, Tomoyuki Hoshino, Mariko Matsumoto,
Keiko Kikawada and Toru Kikawada
Hamamatsu Ear, Nose and Throat Surgicenter
Objective: The aim of the present study is to examine the outcome of middle ear surgery in terms of hearing functions, graft take rate, complications, prognoses, and safety of same day middle ear surgery with 3-day admission.
Design: Prospective cohort study in consecutive middle ear surgery patients.
Setting: University-affiliated municipal oto-rhino-laryngological surgi-center.
Methods: We prospectively analyzed the surgical outcome of 209 consecutive cases of middle ear surgery (176 patients) with regard to postoperative hearing functions, graft take rate, complications including infections, prognoses, and safety.
Results: There were 198 tympanoplasties (Type I: 131, Type III: 46, Type IV: 10, and Type 0: 11) and 11 other operations. In the 198 tympanoplasties, the rate of reperforation of the eardrum was 4.5％ in Type I, 2.2％ in Type III, and 0％ in Type IV and Type 0 tympanoplasties. There were two occurrences of post-operative ear infection in chronic otitis media (tympanoplasty I), and the infection rate for all middle ear procedures was 1.0％. Analysis of the results revealed that hearing functions and graft take rates of tympanoplasties, and the incidence of complications were comparable to the results of previous studies in outpatient settings.
Conclusions: This study provided an appropriate characterization of the outcomes of middle ear surgery, and this information will be useful in the areas of informed consent, patient counseling, surgical treatment decisions, and cost analysis. This study confirms the safety of same-day middle ear surgery during 3-day admission even in Type III and Type IV tympanoplasty with mastoid obliteration.
Key words : middle ear surgery, hearing function, 3-day admission, graft take rate, postoperative complications, tympanoplasty