Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “TYMPANOPLASTY”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

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

At least 379 records · Page 21Linked to original sources

[The behaviour of middle ear mucosa with cholesteatoma and after tympanoplasty (author's transl)].

The middle ear mucosa of rabbits was studied experimentally. After tympanoplasty inflammatory changes were observed together with an epithelial metaplasia, and the appearance of ciliated and goblet cells was noted. These changes disappeared very slowly over the course of a year when almost normal epithelium was found. Epithelial metaplasia in cholesteatoma was similar to that found following surgery.

Animals↗

[A suggestion concerning the technic of using fibrin glue in tympanoplasty].

A technique of operation in tympanoplasty is described which has been successfully applied so far in 14 cases by using fibrin glue. In this technique the patient's head is positioned completely laterally. A few drops of fibrin glue which are coated at the posterior superior operatively provided defect eardrum wall are distributed immediately because of the natural slope over the entire field of operation towards the anterior, inferiorly positioned ear-drum wall. The fibrin glue is equally effective over the entire area between the ear-drum margin and the fascia transplant. Adhesions in the middle ear are avoided.

Drug Combinations↗

[The problems of simultaneous tympanoplasty and adeno- tonsillectomy (author's transl)].

The effect of adento-tonsillectomy on tube function and middle-ear ventilation was measured by tympanometry and manometry. It was found, that after adenotomy considerable negative pressure values may develop in the middle ear. In about one third of all cases five to six days after operation the tube function was not yet normal again. After tonsillectomy alone only a few of the operated children has slight negative pressure values. Adenotomy and tympanoplasty should not be achieved simultaneously.

Adenoidectomy↗

The role of Eustachian tube function in the results of tympanoplasty.

While the Eustachian tube constitutes by its functions of equipression, ventilation and drainage one of the determining elements of sound transmission, it is too the one on which it is the most difficult to take effect. Eustachian tube dysfunctions' persistence after tympanoplasty interfere, by negative pressure in the tympanic cavity, with the good quality of the results as anatomical as functional. Valuation of the tubal function, its keeping and its restoration, before, per- and after operation, must constitute for the otologist a permanent objective.

Eustachian Tube↗

[Antibacterial substances in tamponades after tympanoplasties - an "in-vitro"-study (author's transl)].

This "in-vitro"-study is concerned with the efficiency of antibacterial agents used in packings after tympanoplasties. For this purpose, gel-foam-material was impregnated either with rolitetracyclin (mostly used in German ENT-clinics), or comparatively with a combination of bacitracin and neomycin or with antiseptics like phenylmercuriborate and povidon-iodine. It is tested, how these impregnated "packings" behave in the presence of pathogenic germs (Staph. aureus, Ps. aeruginosa). Antibacterial effects and alterations of the material were judged. It is shown, that in some regards the rolitetracyclin - very successful in clinical use - is superior to the other substances tested.

Anti-Bacterial Agents↗

Tympanoplasty in childhood.

Seventy cases of tympanoplasty in children in whom disease appeared to be limited to the mesotympanum were reviewed. Careful pre-operative selection is recommended; however, the surgery itself presented no particular problems. Success in closure of the perforation and improvement in hearing is comparable to adult studies.

Adipose Tissue↗

Residual perforations after tympanoplasty: office technique for closure.

The author and his associates still strongly recommend an office closure treatment for central tympanic membrane perforations, which has resulted in 1449 healed perforations over a period of 36 years. A particularly gratifying segment of the healed perforation population has been the 247 residual or recurrent perforations following myringoplasty or tympanoplasty surgery that were closed by office treatment. Thus, the patients were spared a second operation. After reviewing his own and his associates' surgical failures, the author found two factors that seem to predispose to surgical failure. Primary failures or recurrent perforations following surgical repair occur most frequently in patients with neglected or inadequately treated upper respiratory tract allergy. There also appears to be a higher incidence of primary failure or recurrent perforations when an operative approach does not provide an excellent view of the anterior annulus during surgery. This would seem to be the case with the routine use of the transcanal or endomeatal approach. Furthermore, the author also objects to the routine use of a combined endomeatal and postauricular approach, which may permit an unobstructed view of the anterior annular region by tilting the patient away from the surgeon during surgery. If there is a prominent anterior bony canal wall bulge, and there is an anterior graft failure or recurrence, reoperation, rather than a few office treatments, is the only recourse. The visualization problems both during and following surgery as described have led the author to continue his use of the endaural approach and meatoplasty learned during years of fenestration surgery and to adhere to the surgical technique described.

Ambulatory Care↗

A retrospective analysis of the intact canal wall tympanoplasty with mastoidectomy.

A retrospective analysis of patients who underwent surgery for chronic otitis media, cholesterol granuloma, and cholesteatoma between 1971 and 1979 was performed. The prevalence of postoperative cholesteatoma was higher than that previously reported in the literature. This emphasizes the need to re-explore patients who have had intact canal wall tympanoplasty with mastoidectomy performed for the removal of cholesteatoma. The elimination of cavity problems and better functional results must be balanced against the need for a second operation when an intact canal wall procedure for cholesteatoma is considered. Cholesteatomas occurring in children appear to be more aggressive than those occurring in adults.

Adolescent↗

Homograft septal cartilage for attic support in intact canal wall tympanomastoidectomy and tympanoplasty.

The postoperative formation of attic retraction pockets following tympanoplasty, with or without mastoidectomy, has often been a significant cause of recurrent disease accompanied by decreased hearing levels. Nasal septal cartilage is recommended as a successful homograft material for attic support. The basis and indications for its use are discussed. Preparation and storage of the homograft materials and surgical technique are described. Long-term results are reported, including a special group in which the status of the homograft material was assessed during revision surgery. Minimal complications have been encountered. Conclusions support the overall advantages of this technique utilizing homograft septal cartilage as an effective means of posterosuperior canal wall support, an aid in preventing retraction pocket formation.

Adolescent↗

Homograft tympanoplasty: graft material effects on otoadmittance and audiometric measurements.

Otoadmittance measurements and air- and bone-conduction thresholds were obtained for 20 subjects who underwent type I tympanoplasty. Component tympanometry, particularly with a high-frequency probe tone, demonstrated that homograft tympanic membrane transplants exhibited more normal function than did temporalis fascia grafts. Audiometric results revealed greater hearing improvement by the homograft transplant group.

Acoustic Impedance Tests↗

[The influence of tympanoplasty and middle ear aeration on tubal function in chronic middle ear disease (author's transl)].

Eustachian tube dysfunction could be demonstrated in 2/3 of our patients with chronic middle ear diseases (inclusive of central perforations, tympanic membrane retractions, adhesive otitis and cholesteatoma). In 68 patients with grommet tubes placed at surgery, Eustachian tube function was followed over a period of three years by using a pressure-equalization test. Four months after surgery, only a few of the patients with impaired tube function showed any improvement of function. Prolonged ventilation through the grommet was not found to have any significant effect on tubal function. In patients with impaired Eustachian tube function--especially when the tube cannot be opened by forced pressurizations--the development of negative middle ear pressures must be expected if existing tympanic membrane perforations are closed. This is considered to be one of the important causes for the high rate of failure following tympanoplasties. Reducing this rate can possibly be achieved by the use of grommet tubes at time of surgery, thus securing ventilation of the middle ear. In addition, radical mastoidectomy should be considered in comparable patients with cholesteatomas.

Eustachian Tube↗

[The influence of tympanoplasty on bone conduction (author's transl)].

Seldom tympanoplasty damages the inner ear in a substantial amount: From 1814 operations upon chronic inflamed ears 4 patients (0.22%) became deaf, among the other patients bone conduction (b.c.) in the mean increased at 1000 cps for + 0.8 dB and decreased at 4000 cps for - 2.2 dB. In 9.8% b.c. showed an improvement for 10 dB or more at 1000 and 4000 cps, 9.7% showed an corresponding deterioration. For patients it was confirmed on a statistical base, that the influence on bone conduction demonstrated by animal experiments (Tonndorf), was mainly the result of changing the compliance of oval window and of increasing ossicular inertia. By relieving a mobile stapes of an incus which was fixed in the attic, there results an improvement of mobility of the stapedial footplate with increasing b.c. at 1000 and 4000 cps. By interposition of an incus between tympanic membrane and stapes and by myringoplasty with fascia there results an increasing ossicular inertia with increasing b.c. at 1000 cps and decreasing b.c. at 4000 cps. Noise trauma, mechanical trauma and infection are only of slight importance, only in some single cases they will damage the inner ear in a substantial amount.

Bone Conduction↗

[Audiometric results of 81 ossiculoplasties after tympanoplasty with closed technique in chronic cholesteatomatous otitis].

We report our functional results about 81 ossiculoplastys during tympanoplasty with closed technique in chronic cholesteatomatous otitis. We discuss our functional results and the post-operative assessment of the audiometric gain. Patients presented either cholesteatomatous otitis sequelea or any preliminary status (retraction pockets) with attical impairment.

Adult↗

[Scopulariopsis brevicaulis otomycosis after tympanoplasty].

We report a case of otomycosis due to Scopulariopsis brevicaulis in a patient who has undergone tympanoplasty 3 months before. Mycological finding led us to consider this fungus as the causative agent. Whereas in vitro studies show a better efficiency of azole derivatives, cure was obtained with nystatine after two treatment failures in our patient.

Administration, Topical↗

[Our experience with reconstructive surgery++ of the middle ear in tympanoplasties with mastoidectomy].

In our department, we studied 243 patients who underwent open or close tympanoplasty, from 1984 to 1989, generally caused by cholesteatoma (229 cases) or by non-cholesteatomatous chronic suppurative otitis media (14 cases). Extrusion of the prosthesis occurred in 15 (11.11%) of a total of 136 cases after an average time of 12.46 months during a 4 to 8 years evolution period. From these cases 5 out of 59 were made with plastipore Porp (8.47%) and 10 out of 76 with plastipore Torp (13.15%). autologous ossicles did not extrude in any case. In the cases of cholesteatoma, open (62.7%) and close (37.3%) techniques were performed, and after above mentioned period of evolution, recidivism of cholesteatoma occurred in 4.11% of patients.

Adult↗

[Changes in rectal temperature during tympanoplasty under general anesthesia].

We measured rectal temperature of 35 patients who underwent tympanoplasty under various types of general anesthesia. They were allocated at random to three groups according to the types of general anesthesia; 10 patients of enflurane-N2O (enflurane group); 10 patients of neuroleptic anesthesia with droperidol, pentazocine-N2O (NLA group); 15 patients of total intravenous anesthesia with droperidol, fentanyl and ketamine (DFK group). After the induction of anesthesia, their rectal temperature was continuously monitored with an electric thermometer of NEC San-ei throughout the surgical procedure. Increase in rectal temperature was observed in all three groups, and increase in DFK group was significant compared with other two groups. It is possible that the significant increase in rectal temperature in DFK group is supposedly due to normally maintained hypothalamic thermoregulatory function as well as direct surgical stimulation to central nervous system.

Adult↗