PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “MYRINGOPLASTY”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 433 records · Page 24Linked to original sources
PubMed2004

Type 1 Tympanoplasty in Benin: a 10- year review.

A review of type 1 Tympanoplasty operations (myringoplasty) done on thirty (30) ears in the University of Benin Teachinhg Hospital, Benin City, (UBTH) during a ten - year period was carried out. The patients were aged 21 to 69 years, and consisted of 21 males and 9 females. 15 (50% ) of the ears had medium to large sized central perforations whilst 13 (43.3 % ) were subtotal perforations. Two cases (6.6% ) had marginal perforations. The overall success rate in terms of full graft take was 66.6%, whilst 32.3 % had partial take of the graft. Post operative audiograms showed improvement in hearing in 77% of those cases for which records were available. However long term outcome both for graft take and hearing improvement was impossible to establish due to poor follow-up compliance in the majority of patients. Although there are many cases of chronic suppurative otitis media (CSOM) with resultant persistent tympanic (TM) perforation and concomitant hearing defect in the community, the relutance or inability of patients to have reconstructive ear surgery, relative lack of the facilities for the operation in our hospitals and poor follow-up compliance amongst our patients are some of the identificable problems related to this otherwise worthwhile procedure.

Adult↗
PubMed2005

[Tympanoplasty decision making in a child with HIV contamination--case report].

Otologic problems are infrequent in HIV patients. Authors present the case of chronic otitis media in the HIV infected child. The patient with significant hearing loss, and prolonged aural discharge, resistant to local and systemic antibiotic treatment was treated surgically. Mastoidectomy with myringoplasty was performed. The substantial hearing improvement has been obtained, ear discharge never returned. However due to episodes of chronic otitis media with effusion ear drainage with tympanostomy tubes, after initial surgery have been performed two times. The controversies regarding surgery decision-making in this group of patients are discussed.

AIDS-Related Opportunistic Infections↗
PubMed1979

[Hearing results following tympanoplasty (author's transl)].

Tympanoplasty can produce a stable hearing improvement in many patients with chronically inflamed ears. In our series of patients, severe damage to the inner ear following surgery occurred in 3% patients and was associated with a hearing loss of greater than 15 dB. Complete hearing loss occurred in 0.2% of the patients reviewed. In patients with an intact ossicular chain, simple myringoplasty is associated with the best results. Loss of the stapedial arches affects the postoperative air-bone gap most significantly, while loss of the manubrium mallei or the creation of a radical mastoid cavity are additional negative factors. Extent or localization of ossicular fixation has no direct influence on hearing results when appropriate ossicular reconstruction is performed.

Cochlear Implants↗
PubMed1984

The changing nature of otological practice in a teaching centre.

The impression that otologic surgical practice is a declining segment of the specialty of otolaryngology is widespread. In an attempt to assess objectively the validity of that assumption, the authors reviewed their own experience over the 12 years 1971-82 inclusive. Five representative years out of the 12 were examined--1971, 1974, 1977, 1979, and 1982. In each of these years, the relative and absolute frequency with which six common otological procedures were performed was determined. The procedures selected for study included myringoplasty, tympanoplasty Type I, II, III and IV, and stapedectomy. In addition the relative frequency of primary vs. revision operations was assessed. The data indicate a change in the pattern of otologic surgical practice over the period, most noticeably in the ratio of primary to revision procedures. These changes have significant implications for the teaching and practice of otology in the future.

Ear Diseases↗
PubMed1984

Use of micro-sliced homograft cartilage plates in tympanoplasty.

We described our experiences in the use of micro-sliced septal cartilage homografts in tympanoplasty. The cartilage plates (0.1-0.5 mm thick) previously prepared with our method by use of a dermatome were used for the three purposes 1) to reconstruct the attic wall defect, 2) to prevent the retraction of the grafted fascia in myringoplasty, and 3) to prevent the displacement of the columella and the retraction of the grafted fascia in columella-type tympanoplasty. There have been no postoperative infections or extrusions in our 142 cases. These cartilage plates are considered to be very convenient in tympanoplasty.

Cartilage↗
PubMed1980

Reconstructive middle-ear surgery for chronic otitis media.

Chronic otitis media can be divided into the non-cholesteatomatous ears and the cholesteatomatous ears. The non-cholesteatomatous ears are most suitable for reconstructive middle ear surgery and the majority of the patients can expect a dry trouble-free ear with good hearing after the operation. Surgery for the cholesteatomatous ear is not only difficult but must be exact as residual disease can lead to fatal intra-cranial complications. Unlike the non-cholesteatomatous ears, not all cholesteatomatous ears are suitable for tympanic reconstruction. In both types of ears, eradication of disease takes priority and precedes tympanic reconstruction. Basically, tympanic reconstruction consists of repair of the tympanic membrane defect or myringoplasty and repair of the ossicular defect or ossiculoplasty. A scheme or surgical management for chronic otitis media is outlined. Between May 1977 and October 1979, 165 cases were seen by the author in the ENT Department, Singapore General Hospital and operated in accordance with this scheme of management and the results are analysed.

Cholesteatoma↗
PubMed1981

Traumatic rupture of the eardrum with round window fistula.

Traumatic perilymphatic round window fistula may manifest itself with minimal cochleovestibular symptoms. Its association with tympanic membrane perforation secondary to ear washing has previously never been published. The rapid complete recuperation of cochleovestibular function after a conservative obliteration of the round window niche with fat and a myringoplasty, leads us to suggest early surgical intervention when there is evidence or high suspicion of perilymphatic fistula with a traumatic membrane perforation.

Cochlea↗
PubMed1995

Results of surgery for chronic otitis media: a 5-year study.

The results of 601 operations of the middle ear, including 50% of myringoplasties, performed between 1984 and 1989 are analysed. The standard Schuller's view radiography and the scanner are unreliable in determining the presence of a cholesteatoma recorded in 119 cases. The functional value of the Eustachian tube is important for taking the graft. On the other hand, there was no significant difference in the results depending on whether or not fibrin sealant was used, depending on the seat of the perforation, on the use of a homograft or of an autograft, and on age (before or after 14 years).

Adolescent↗
PubMedDate not supplied

[Reconstructive and functional surgery of the middle ear (review of 276 cases)].

The present work presents the review of 276 cases that underwent the following surgeries: 62 myringoplasties, 176 tympano-ossicular reconstructions, 9 functional second look surgery and 29 tympanoplasties with ossiculoplasties. Regarding two different parameters, results were as follows: 1) New eardrum after one-year evolution: 94% were complete, 3.8% were perforated and 2.3% had cholesteatoma pearls. 2) Hearing level after one-year evolution: 33% was the same, 29% gained less than 15 dB, 26.8% gained between 15 and 30 dB, and 11.2% gained over 30 dB.

Cholesteatoma, Middle Ear↗
PubMed1993

Prognostic factors in tympanoplasty: a statistical evaluation.

In a group of 52 patients with chronic otitis media that underwent a myringoplasty, pressure equalization mucociliary clearance of the Eustachian tube and degree of pneumatisation of the mastoid have been studied, and their statistical relationship with surgical outcome evaluated. The only statistically being significant correlation was mucociliary clearance time.

Adolescent↗
PubMed1998

Tympanoplasty type II with ionomeric cement and titanium-gold-angle prostheses.

OBJECTIVE: The pronounced isolated erosion of the long incus process is a challenging situation during tympanoplasty. Here, we report two methods for reconstruction of the ossicular chain as tympanoplasty type II with the incus remaining in situ. (1) lonomeric cement is used, resulting in two characteristics: a direct link between stapes head and the long incus process is achieved. At the stapes head the link possesses a joint allowing physiological movements between incus and stapes. (2) Titanium-gold-angle prosthesis according to Plester were crimped to the long process of the incus and positioned onto the head of the stapes forming an articulation. STUDY DESIGN: Forty-five patients with missing long incus process underwent ossiculoplasty among which 41 patients were operated within a randomized, prospective clinical trial. For myringoplasty, the underlay technique with tragus perichondrium was used in all patients. SETTING: We investigated hospitalized patients. INTERVENTION: In 26 patients ossiculoplasty was performed as tympanoplasty type II, in 19 patients with incus interposition. MAIN OUTCOME MEASURE: The essential criterion was the postoperative air-bone-gap (dB). RESULTS: Incus interposition achieved less satisfactory results with an average remaining air-bone gap of 10-20 dB. By contrast, the two tympanoplasty type II procedures yielded average postoperative air-bone-gaps of 0-10 dB (p=0.0003 at 1 kHz; p=0.0028 at 4 kHz), thus reaching the "gold standard" of stapedotomy. The two type II procedures, however, were not equal. The angle prosthesis was restricted to cases with a sufficiently long incus process, whereas the cement-technique is also applicable, when only a short part of the long incus process remained. CONCLUSION: In the present study we show that in the case of a missing crus longum of the incus, a tympanoplasty type II achieved a statistically significant better hearing gain than an autograft interposition.

Audiometry↗
PubMed1998

[Mallear epidermosis. An unusual form of open mucous otitis].

The presence of keratin in the middle ear cavity is usually associated with the diagnosis of cholesteatoma or epidermoid metaplasia. Analysis of a series of 18 cases suggests that it may correspond to a specific entity developing in the course of severe or long-lasting opened chronic otitis. This condition, we called mallear epidermosis, is characterized by: i) a perforation of the tympanic membrane lining the handle of the malleus and the umbo; ii) a proliferation of keratin surrounding the handle of the malleus and diffusing into the mesotympanum on the internal side of the tympanic membrane, without matrix; and iii) a mild inflammation of the middle ear epithelium. The process is usually limited to the mesotympanum and does not extend towards the attic and the posterior cavities. Epidemiological, clinical, pathophysiological, and histological features allow this entity to be distinguished from cholesteatoma and epidermoid metaplasia. Management is either medical consisting of local treatment and microaspiration, or surgical including resection of the umbo, removal of the tympanic membrane invaded by the adherent hyperkeratotic layers and repair by conventional underlay myringoplasty. This report emphasizes the need for a clear identification of the various types of chronic otitis media presenting with keratin in the middle ear, as they do not share the same course and do not require the same therapeutic management.

Adolescent↗
PubMed1988

Hyaluronan improves the healing of experimental tympanic membrane perforations. A comparison of preparations with different rheologic properties.

Preparations of hyaluronan at various concentrations and molecular weights were topically applied to experimental tympanic membrane (TM), perforations in the rat and their ability to improve the healing pattern was elucidated. The perforation occupied the upper posterior quadrant of the TM. Alterations in healing rate and quality of the healed TM were examined by otomicroscopy and in histologic sections. Hyaluronan enhanced the healing rate and resulted in less opacity and structural alteration of the scar area. Closure time for the TM perforation was correlated to the concentration of hyaluronan but not to its molecular weight or viscosity. Improved scar quality was obtained in the presence of hyaluronan irrespective of its rheologic properties. Hyaluronan improved the restoration of the fibrous connective tissue layer. Treatment of TM perforation in man with hyaluronan at high concentrations should be considered as an alternative to myringoplasty.

Administration, Topical↗
PubMed1988

Microvascular networks in tympanic membrane, malleus periosteum, and annulus perichondrium of neonatal mongrel dog: a vasculoanatomic model for surgical considerations.

India-ink-imaged blood-vessel networks in cleared tympanic membranes and adnexa from ten neonatal dogs were examined microscopically and photographed. The major significance of the study lies in documentation of a dual source of arterial supply, a bilaminar relationship of arterial and venous plexuses intrinsic to the tympanic membrane, and a consistent major venous pathway relative to a definite locus (pars flaccida of the membrane). Illustration of all three types of blood pathways (arteries, veins, and capillaries) provides new vasculoanatomic data that are essential to ear surgery, specifically--to myringotomies and myringoplasties. A comparison was made between dog and human tympanic membrane structures and their arterial supplies. Close similarities suggested that dog tympanic membrane might serve as a suitable model for development of innovative surgical procedures and as a model for rehearsal of difficult techniques. The results of this investigation provide a valuable caveat to otologists.

Animals↗
PubMed1991

Tympanoplasty surgery at the Red Cross War Memorial Children's Hospital 1986-1988.

Results of tympanoplasty surgery over a 3 year period in 96 children aged 2-12 years were analysed to better define indications for surgery and prognostic factors. Nineteen percent had a hearing loss associated with a dry perforation--grafts were successful in 84% and 71% improved hearing to less than 20 dB. Forty-two percent had a hearing loss but also troublesome recurrent infection--grafts were successful in 88% but only 65% improved hearing to less than 20 dB. Thirteen percent had troublesome recurrent infection--grafts were successful in 79%. Twenty-two percent had uncontrolled infection, a cortical mastoidectomy together with myringoplasty produced a 75% take rate. Graft take was not affected by age, type of surgery, infection status or perforation size. Poor nutritional status and postoperative infection both had negative tendencies. In this small series there was a 10% re-perforation rate.

Age Factors↗
PubMed2006

Tympanoplasty in pediatric patients.

OBJECTIVE: The aim of this study is to analyze the clinical features and follow-up of a series of pediatric patients with chronic otitis media undergoing tymponaplasty surgery and to identify the effect of the factors on the course. METHODS: Forty-one children (mean age 15.1+/-2.62 years, range from 8 to 16 years) who had undergone tympanoplasty with or without ossicular reconstruction were evaluated. Age, gender, size and site of perforation, status of operated ear (dry/discharging), status of the contralateral ear, underlying cause of the perforations, surgical technique, preoperative and postoperative hearing levels, average postoperative follow-up time, and postoperative complications were recorded. RESULTS: Myringoplasty in 28 patients (68.3%), incus interposition in 7 patients (17.1%), partial ossicular replacement prostheses in 4 patients (9.7%) and total ossicular replacement prostheses in 2 patients (4.9%) were performed. In the 37 (90.2%) of patients, intact graft was determined during postoperative follow-up. Surgical success including intact graft and postoperative air-bone gap of less than 25 dB were obtained in 34 (82.9%) cases. CONCLUSIONS: The present study suggested that tympanoplasty was a quite successful method in the appropriate pediatric patients between the ages of 8 and 16 years. In the preoperative evaluation for surgery success, some factors, such as dry middle ear, healthy contralateral ear and concordant to postoperative care should be considered.

Adolescent↗
PubMed2005

Three approaches for estimating the elastic modulus of the tympanic membrane.

The function of the middle ear is to resolve the acoustic impedance mismatch between the air in the ear canal and the fluid of the inner ear. Without this impedance matching, very little acoustic energy would be absorbed into the cochlea. The first step in this process is the tympanic membrane (TM) converting sound in the ear canal into vibrations of the middle ear bones. Understanding how the TM manages its task so successfully over such a broad frequency range should lead to more satisfactory and less variable TM repairs (myringoplasty). In addition, understanding the mechanics of the TM is necessary to improve the coupling between ossicular prostheses and the TM. Mathematical models have played a central role in helping the research community understand the mechanics of the eardrum. However, all models require parameters as inputs. Unfortunately, most of the parameters needed for modeling the TM are not well known. In this work, several approaches for inferring the material properties of the TM are explored. First, constitutive modeling is used to estimate an elastic modulus based on the elastic modulus of collagen and experimentally observed fiber densities. Second, experimental tension and bending test results from the literature are re-interpreted using composite laminate theory. Lastly, dynamic measurements of the cat TM are used in conjunction with a composite shell model to bound the material parameters. Values from the literature, both measurement and modeling efforts, and from the present analysis are brought together to form a coherent picture of the TM's material properties. In the human, the data bound the elastic modulus between 0.1 and 0.3 GPa. In the cat, the data suggest a range of 0.1-0.4 GPa. These values are significantly higher than previous estimates.

Animals↗