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1.

Objectives

We investigated the outcomes of the endoscopic versus microscopic approach to type 1 tympanoplasty in pediatric patients.

Methods

In this retrospective study, the outcomes of 61 ears of 60 pediatric patients (33 male and 27 female) who underwent type 1 tympanoplasty were evaluated. One patient underwent a bilateral operation. The age range of the patients was 7–16 years. Group 1 underwent tympanoplasty with an endoscopic technique (n = 32), and Group 2 underwent tympanoplasty with the conventional microscopic technique (n = 29). A boomerang-shaped chondroperichondrial graft was used in both groups. The outcomes were analyzed in terms of the hearing gain, duration of surgery, and graft success rate.

Results

In both groups, the postoperative air–bone gap (ABG) was significantly lower than the preoperative ABG. There were no significant differences between the preoperative and postoperative ABG values (in dB) in either group. The mean operative duration in Group 1 was significantly lower than that in Group 2 (51.37 vs. 67.03 min, respectively). In the preoperative evaluation, 65.6% of patients in Group 1 had larger perforations and 34.4% had smaller perforations. In Group 2, 58.6% and 41.3% of patients had larger and smaller perforations, respectively. Perforations were detected in two (6.25%), four (12.50%), and four (12.50%) of the patients in Group 1 at postoperative months 1, 6, and 12, respectively. Perforations were detected in two (5.71%) patients in Group 2 at postoperative months 1, 6, and 12. At 12 months postoperatively, there were smaller perforations in four (12.5%) of the children in Group 1 and in two (5.71%) of the children in Group 2. The difference between the perforation conditions (larger vs. smaller) was not significant in either group. The preoperative and postoperative increases in the ABG were associated. The operative duration was shorter in Group 1 than in Group 2.

Conclusion

In pediatric patients undergoing type 1 tympanoplasty, especially if the external ear canal is narrow and the anterior canal wall is prominent, the endoscopic and microscopic approaches appear to give equal results in terms of easy visualization of the entire tympanic membrane and no requirement for extra intervention to evaluate the ossicular system. A shorter operative duration is an advantage of the endoscopic tympanoplasty technique.  相似文献   

2.

Objective

To compare the post-operative outcomes in using temporalis fascia and full thickness broad cartilage palisades as graft in type I tympanoplasty.

Methods

This study, conducted at a tertiary referral institute, included 90 consecutive patients with mucosal type chronic otitis media requiring type I tympanoplasty with a 60/30 distribution of cases with fascia and cartilage palisades, respectively. The fascia group consisted of primary cases in adults and excluded revision cases, near-total or total perforations and pediatric cases. The cartilage group included pediatric, revision cases and near-total or total perforations. The fascia group utilized the underlay technique for grafting, whereas the cartilage group used tragal full thickness broad cartilage palisades with perichondrium attached on one side placed in an underlay or over-underlay manner. Post-operative graft take-up and hearing outcomes were evaluated after 6 months and 1 year with subjective assessment and pure tone audiometry.

Results

The graft take-up rate was 83.3% in the fascia group and 90% in the cartilage palisade group. The mean pure tone air–bone gaps pre- and post-operatively in the fascia group were 30.43 ± 5.75 dB and 17.5 ± 6.94 dB, respectively, whereas for the cartilage group, these values were 29 ± 6.21 dB and 7.33 ± 3.88 dB, respectively.

Conclusion

Cartilage grafting with full thickness palisades is more effective than fascia as graft material, particularly in “difficult” tympanoplasties fraught with higher failure rates otherwise.  相似文献   

3.

Objective

To describe and evaluate the medio-lateral graft tympanoplasty1 for the reconstruction of anterior or subtotal tympanic membrane (TM) perforation and medial graft tympanoplasty for posterior TM perforation.

Methods

Retrospective study of 200 patients who underwent medio-lateral graft tympanoplasty (100 cases) and medial graft tympanoplasty (100 cases) at community and tertiary care medical centers from 1995 to 2006. All patients underwent preoperative and postoperative audiograms. In the medial graft tympanoplasty, the graft is placed entirely medial to the remaining TM and malleus. First, margin of TM perforation is denuded removing ring of squamous tissue. Tympanomeatal flap is elevated. Temporalis fascia is harvested, semidried, and grafted medial to the TM perforation and malleus with Gelfoam packing supporting the graft. In the medio-lateral graft technique, posterior tympanomeatal flap is elevated same as in the medial graft tympanoplasty first. Anterior-medial canal skin is elevated down to the annulus. At the annulus only squamous epithelial layer of TM is elevated up to anterior half of the TM perforation. Temporalis fascia is grafted medial to posterior half of the perforation and lateral to anterior half of the de-epithelialized TM perforation up to the annulus. Anterior canal skin is rotated to cover the fascia graft and TM perforation as a second layer closure. Patients were followed for at least six months. Outcome was considered successful if TM is healed and intact.

Results

There were four failures (96% success rate) in medial graft method for posterior TM perforation due to infection and re-perforation. In the medio-lateral graft tympanoplasty, there were three failures (97% success rate) due to a postoperative infection, anterior blunting and recurrent cholesteatoma.

Conclusion

The medial graft tympanoplasty works well for posterior TM perforation. The medio-lateral graft method is an excellent method for the reconstruction of large anterior or subtotal TM perforation. This new method should help otologic surgeons to improve outcome of tympanoplasty for anterior or subtotal TM perforation.  相似文献   

4.

Purpose

Circumferential elevation of the anullus away from its bony seat and extension of the graft onto the anterior bony canal increase the bed of the graft anteriorly but may be associated with anterior blunting, and so, a significant conductive hearing loss may result. The purpose of this study was to compare the surgical and audiologic success rates of circumferential subannular grafting with the conventional underlay tympanoplasty.

Materials and Methods

A randomized clinical study was conducted from September 2007 to December 2010 at a tertiary referral center. Thirty-eight patients underwent circumferential subannular grafting (group A), and 25 patients underwent conventional underlay tympanoplasty with extension of the anterior edge of the graft forward against the lateral wall of the Eustachian tube, and therefore, the anterior sharp tympanomeatal angle remained unbroken (group B). All patients underwent preoperative and postoperative audiogram. Blunting and lateralization of the graft were evaluated 6 months after the surgery.

Results

The surgical success rate was 97% in group A and 100% in group B patients. Improvement of the air conduction thresholds in all frequencies and closure of the mean air-bone gap were significant and similar among the 2 groups. There were no cases of significant blunting and tympanic membrane lateralization in the 2 groups.

Conclusion

This study showed underlay tympanoplasty with elevation of the annulus away from the sulcus tympanicus in the anterior sharp tympanomeatal angle and placement of the graft between it and anterior bony canal is not associated with increased risk of blunting and lateralization of the graft, if that sharp angle is adequately restored.  相似文献   

5.

Objectives

In this retrospective study, we investigated the outcomes of fat graft myringoplasty (FGM) in different perforation sizes and locations. The outcomes were evaluated in terms of closure rates and audiological test results.

Methods

The study population included 172 patients who were operated between 2007 and 2012. 161 had unilateral and 11 had bilateral chronic otitis media; and 183 ears were operated by FGM. The patients were divided into two groups based on size as small and larger (size of ≤30 of TM was defined as small perforations, and size of >30% TM was defined as a medium–large perforations); and two groups based on location of perforation [anterior and other (non-anteriorly located)]. Patients’ follow-ups were performed between 1 and 5 years; and follow-up examinations were performed with otoendoscopy. Air conduction (AC) thresholds and air-bone gap (ABG) were evaluated both preoperative year and postoperative 1st year.

Results

The total perforation closure rate was 84.7%. In this study, we found out that FGM is effective closing medium–large perforations just as small perforations with the success rate of 79.1% and 86.4% respectively (p > 0.05). When audiological outcomes were evaluated in both groups, AC values got lower and ABG values improved postoperatively, whereas regarding AC thresholds and ABG improvement among the size groups, patients with small perforations had significantly better postoperative results (p < 0.05). In terms of perforation location, closure rates were 85.2% in anteriorly perforations and 84.5% in the other located perforations. Audiological outcomes demonstrated that in both groups, AC values got lower and ABG values improved postoperatively; and hearing results were not different in anteriorly located perforations and other locations.

Conclusion

Fat graft myringoplasty (FGM) may be used in all small and medium–large, and anteriorly and other located perforations. Although hearing improvement was detected in each of the small; and medium–large perforations; patients with small perforations had more satisfied audiological outcome than medium–large perforations.  相似文献   

6.

Objective

To evaluate the success rate for revision tympanoplasty using different graft materials, to compare results of primary and re-tympanoplasty using the same technique and to analyse the effect of potential influencing factors on closure of tympanic membrane (TM) and hearing outcome.

Methods

Study included all patients, who underwent tympanoplasty (n = 617) and re-tympanoplasty (n = 94) for chronic otitis media without cholesteatoma in the period between September 1998 and 2007. The data of all patients on preoperative disease, perforation size and localization, middle ear status, surgical approach, graft material, adjunctive procedures, pre- and postoperative morphological (otomicroscopy) and functional (hearing examination evaluating pure-tone audiogram) results were analyzed. All operations were performed using an underlay technique and either the retroauricular or transcanal approach. The temporal fascia, perichondrium or cartilage-perichondrium composite grafts were used for the reconstruction of TM. Ossiculoplasty was performed as needed. The interrelation between multiple pre-operative parameters and post-operative morphological (closure of the perforation) and functional (hearing level) outcomes was analysed.

Results

Successful closure rates of the TM perforation were 93.6% and 90.2% of the patients in the primary and revision tympanoplasty groups, respectively. Graft take rate and hearing results did not depend on graft material. Structural changes were found more frequently in the re-tympanoplasty group (63.4% comparing to 29.5% of primary cases). Ossiculoplasty was performed more often in revision cases (24.4% comparing to 11.4% of primary cases). Successful hearing (ABG within 20 dB) for primary tympanoplasties was achieved in 81.1%, and for retympanoplasty - in 69.5% of the cases. (p < 0.01). There were no interrelation between any estimated parameters and the graft take rate for either primary or revision tympanoplasty.

Conclusions

There is no evidence of increased risk of graft failure in re-tympanoplasty cases when compared to primary tympanoplasty operations. Hearing results depend on structural changes in the middle ear (ossicular abnormalities and tympanoscerosis) which in revision cases are found more often. No differences were found between fascia, perichondrum or cartilage-perichondrium grafts in terms of graft healing and hearing results.  相似文献   

7.

Objectives

The aim of this study was to analyze the outcome of inlay “butterfly” cartilage tympanoplasty.

Methods

The files of 42 patients (24 were male, 18 were female) who underwent primary or revision inlay butterfly cartilage tympanoplasty in 2005 to 2011 at a tertiary medical center were reviewed. Patients were regularly observed by otoscopy and audiometry.

Results

The mean patient age was 27 years (range, 14–75 years), and the mean duration of follow-up was 24 months (range, 3–36 months). The postoperative period was uneventful. The technical (anatomical) success rate was 92% at 1 year. There was a significant decrease in the mean air-bone gap in 32 patients (preoperatively, 49.6 dB; postoperatively, 26.2 dB; P = .006). Results were suboptimal in 3 patients with persistent small perforations of the operated ear.

Conclusion

Inlay butterfly cartilage tympanoplasty appears to be effective in terms of defect closure and improved hearing, comparable with temporalis fascia graft tympanoplasty. Follow-up is necessary for at least 1 year when some perforation may reappear.  相似文献   

8.

Objective

To assess different clinical scales of TM perforation size; to evaluate the effect of the size and the site of a perforation on the hearing level and frequencies.

Methods

Prospective study. Observers had subjectively estimated the size in millimeter and in percentage of a particular perforation; objectively computerized measures of TM perforations area were analyzed. Agreement between different measures was studied. Cases with postoperative intact TM and an air-bone gap (ABG) of 10 dB or less were studied.

Results

Global mean preoperative ABG was 21.8 ± 17 dB. Preoperative ABG was different between small-large and small-total perforations (p = 0.001). Difference of the preoperative ABG was statistically significant between perforations filling up the four quadrants and perforation limited to one quadrant in the postero-inferior, antero-superior and antero-inferior site. No statistically difference between perforation sites was identified for each affected frequency. Difference is statistically significant (p = 0.001) between the 250 Hz and the other frequencies for the medium, large and total perforations. After myringoplasty bone conduction improvement was statistically significant for the frequencies 500 (p = 0.04), 1000 (p = 0.04) and 2000 Hz (p = 0.011). Agreement was large enough when TM perforation size was expressed in percentage and absent when expressed in millimeter.

Conclusion

TM perforation can be clinically estimated quite precisely as a percentage of the TM area. Conductive hearing loss is frequency dependent; with the greatest loss occurring at the lowest sound frequencies. Hearing loss does not depend on the perforation's location.  相似文献   

9.

Background

Contradictory data have been published on the outcomes of ear surgeries in cleft patients.

Objectives

To investigate whether there are differences in the short and long term outcomes of tympanoplasty performed due to childhood chronic mesotympanic otitis media in patients without and with cleft palate.

Setting

Tertiary care pediatric medical centre.

Methods

The authors retrospectively analysed the first author's data on pediatric tympanoplasties of the past 22 years with the help of a computer programme developed by the third author. The outcomes of 159 ‘NoCleft’ tympanoplasties (119 patients, 144 ears) were compared to the outcomes of 31 ‘Cleft’ tympanoplasties (21 patients, 27 ears) with the average age of the patients being 10.8 and 10.7 years accordingly.

Results

The preoperative ABG (28.76/28.94 dB, p = 0.468), the best postoperative ABG (12.78/10.04 dB, p = 0.096), the last postoperative ABG (15.59/13.19 dB, p = 0.192), the final hearing gain (13.17/15.75 dB, p = 0.253) and the postoperative ABG deterioration associated with time (2.81/3.15 dB, p = 0.376) were statistically compared in the ‘NoCleft’/’Cleft’ groups. No significant difference was found between the outcomes of the two groups. The same parameters were examined separately after tympanoplasties performed with intact ossicular chain and after those requiring columella ossiculoplasty. The ‘Cleft’ group did not have worse outcomes in this respect, either. The average follow-up period of the patients was more than 3 years in both groups. The graft take rate was 100%, reperforation occurred in 3.5% of the cases in both groups. In their study, grommet insertion was more likely to be necessary in the ‘Cleft’ group.

Conclusion

The authors concluded that there was no significant difference between the expectable outcomes of pediatric tympanoplasties in patients with and without cleft palate regarding mesotympanic cases; therefore, the indications for tympanoplasty are the same in the two groups. They outline the importance of the therapeutic management of cleft patients in the frameworks of a “Cleft Palate Team” and the necessity for their lifelong otorhinolaryngological care due to their vulnerable Eustachian tube function. They are planning to publish the same comparative analysis of their patients with cholesteatoma in a following study.  相似文献   

10.
Conclusion: The three-point fix tympanoplasty procedure is a stable and effective technique – with a high degree of graft take and satisfactory hearing results – for reconstruction of most tympanic membrane (TM) perforations. Objective: It is difficult to repair a TM perforation, including subtotal perforation, involving the anterior part of the annulus. Reperforation can occur when an underlay graft technique is used. An overlay graft technique may result in anterior blunting/lateralization. We introduce a three-point fix tympanoplasty procedure, which can provide additional support to yield a stable graft. Methods: The study enrolled a total of 234 patients who underwent a three-point fix tympanoplasty procedure from November 2005 to June 2011. Anatomic success was defined as an intact, repaired TM, while functional success was defined as a significant decrease in the air–bone gap at the end of follow-up compared with preoperative hearing (air–bone gap). The complication rate was also analyzed. Results: The anatomic success rate was 93.2% (218/234 patients). The functional success rate after an average of 1 year was 73.5%. The postoperative average pure-tone air–bone gap (15.4 ± 11.4 dB) decreased successfully in comparison with the preoperative average air–bone gap (20.6 ± 12.1 dB). There were few postoperative complications (7.7%).  相似文献   

11.

Objective

The goal of this study was to evaluate the effects of crust formation on the healing of traumatic, dry, and minor-sized tympanic membrane perforations (TMPs) in humans.

Study design

Case series with a chart review.

Setting

Tertiary university hospital.

Materials and methods

The clinical records of patients with traumatic TMPs who met the case selection criteria were retrieved and categorized according to the presence of a crust and the timing of crust formation into three groups: no crust, early crust formation, and late crust formation. Healing outcomes (i.e., healing rate and time) in the three groups were analyzed.

Results

In total, 83 patients were analyzed. The perforation closure rates were 92%, 100%, and 78% in the groups with no-crust, early crust formation, and late crust formation, respectively. No significant difference was seen between the groups with no-crust and with late crust formation (p > 0.05). By contrast, closure rates differed significantly between the early and late crust formation groups (p < 0.05). Overall, the no-crust and early crust formation groups showed shorter healing times compared with the late crust formation group (p < 0.05). However, closure times did not differ significantly between groups with early crust formation and no crust (p > 0.05).

Conclusions

Crust formation at the margin of a traumatic TMP may serve as a predictor of healing outcome. Compared with perforations with early crust formation or no crust, late crust formation can result in delayed healing and failure to close completely.  相似文献   

12.

Objective

Septoplasty is usually performed with a Killian incision in Japan. However, the major drawback of the Killian incision is the inability to correct deviations of the caudal part of the septum. For patients with mild deviation of the caudal part of the septum but with a straight caudal end, we performed a modified Killian incision and used a batten graft to correct the deviated cartilage under endoscopy. The aim of this study was to evaluate the usefulness of our surgical technique for these cases.

Methods

We prospectively collected data of 17 patients who underwent endoscopic septoplasty with a batten graft. Objective assessment by computed tomography and subjective assessment by questionnaire were performed before and 3 months after the surgery.

Results

On computed tomography, the ratio of the area of the convex side to that of the concave side in the anterior portion of the nasal cavity was significantly improved after surgery (p < 0.001). Subjective assessment revealed a significant improvement in nasal obstruction (p = 0.002). There were no complications in this study.

Conclusion

The herein-described septoplasty with a batten graft is technically easy and considered to be useful for deviation of the caudal part of the septum in selected cases.  相似文献   

13.

Aim

The use of cartilage in tympanoplasties in the shape of monolytic cartilage–perichondrium autografts or several particles as a cartilage-palisade.

Materials and methods

The retrospective analysis concerned 216 clinical cases. The cartilage palisade technique was performed in 163 tympanoplasties. In 53 cases the tympanoplasty was carried out with the use of the monolytic cartilage–perichondrial composite graft: cartilage-island, cartilage-cork or cartilage-mat.

Results

In the type I and II of tympanoplasty the air bone gap (ABG) <10 dB showed 70% of patients operated with the use of monolytic cartilage–perichondrial composite autografts and 73% using the cartilage-palisade technique.

Conclusions

The usefulness of cartilage in tympanoplasties is much the same in cartilage–palisade technique as well as in monolytic, non-palisade technique.  相似文献   

14.

Objectives

1-Recognize difficulties and review techniques in long-segment laryngotracheal stenosis repair. 2-Contribute to increasing clinical and surgical skills in pediatric airway reconstruction through reporting our experience with a novel reconstruction technique involving use of a failed anterior graft and prolonged postoperative stenting.

Methods

Case report: 10 year old male with history of burn injury who required a tracheostomy due to prolonged intubation/inhalational injury in 2005. Subglottic/tracheal stenosis was identified and he subsequently underwent anterior costal cartilage grafting involving the thyroid cartilage, cricoid cartilage, and trachea. He remained tracheostomy dependent for six years due to failed graft and postoperative complications despite several attempts to improve the airway with CO2 laser and balloon dilation. In 2011, preoperative CT with 3D reconstruction revealed a 32 mm long segment of complete stenosis. The patient underwent suprahyoid release and single stage reconstruction with cricotracheal resection and partial preservation of the anterior costal cartilage graft found in the luminal scar tissue.

Results

Postoperatively the patient was stented with a nasal endotracheal tube for 2 weeks. Bronchoscopy showed mild tracheal collapse inferior to the site of anastamosis and granulation tissue at the site of anastomosis. Granulation tissue was removed and the subglottic anastomosis site was stented with a 2 cm Dumon stent for 6 months.

Conclusion

The problem of long segment stenosis after failed cartilage graft reconstruction of the airway is evaluated and a novel technique of laryngotracheal reconstruction involving a pre-existing failed anterior graft and short segment stenting is described.  相似文献   

15.

Objective

To evaluate the efficacy of a novel technique of using rotation flap of canal skin in patients with total or subtotal tympanic membrane (TM) perforation with no anterior residual tympanic membrane.

Methods

A retrospective study of 50 patients with total or subtotal perforation repaired with rotation flap of canal skin. Clinical and audiometric data were recorded.

Results

The overall perforation closure rate was 96%. A statistically significant shortened healing time was observed.

Conclusion

The rotation flap of canal skin could be an effective and safe technique for perforations with no anterior residual TM.  相似文献   

16.

Objective

To evaluate the anti-adhesive and anti-inflammatory effects of sodium hyaluronate-carboxymethylcellulose (HA-CMC) in reducing postoperative pain after temporalis fascia harvest during tympanomastoid surgery.

Materials and methods

Between January and December 2009, 27 patients underwent tympanoplasty and open cavity mastoidectomy involving the harvesting of temporalis fasciae (more than 3 × 4 cm). At the end of surgery, patients were injected with 1.5 g HA-CMC or normal saline around the fascia harvest area. Beginning immediately postoperatively and for 2 months after surgery, patients scored their pain in the temporal area on a visual analogue scale (VAS).

Results

There were no significant postoperative complications, such as bleeding or hematoma, in either control group. VAS scores of both groups decreased over time and were negligible after 2 months. VAS scores of the HA-CMC and control groups differed significantly (p < 0.001 by repeated measures ANOVA for all VAS scores).

Conclusion

HA-CMC can decrease immediate postoperative pain arising from tissue adhesion and inflammation, thus reducing postoperative mastication pain.  相似文献   

17.
Schraff S  Dash N  Strasnick B 《The Laryngoscope》2005,115(9):1655-1659
OBJECTIVES/HYPOTHESIS: Anterior marginal perforations of the tympanic membrane often present a reconstructive challenge to the otolaryngologist. Poor surgical outcomes are often due to inadequate exposure, a lack of residual tympanic membrane, impaired vascular supply, and delayed healing. This study reports on the success of the "window shade" technique, combining aspects of both the traditional underlay and overlay tympanoplasty techniques, for the management of anterior marginal tympanic membrane perforations. STUDY DESIGN: Retrospective review of patients undergoing window shade tympanoplasty from July 1, 1994, to July 1, 2003, at a tertiary care referral center. METHODS: Only patients found to have anterior tympanic membrane perforations and who underwent a window shade tympanoplasty were included in the study. Tympanoplasty success rate was studied by examining postoperative complications of recurrent perforation, tympanic membrane lateralization, or anterior blunting. RESULTS: The authors identified 164 patients who underwent window shade tympanoplasty during the study period. The overall success rate for tympanic membrane repair was 94.5%. There were no cases of tympanic membrane lateralization or significant blunting. The average healing time was 4 weeks. The surgical technique is described in detail. CONCLUSION: The window shade tympanoplasty is an excellent surgical option for repair of anterior marginal perforations of the tympanic membrane.  相似文献   

18.

Objective

To determine the dimensions of the nasal cavity in infants with congenital pyriform aperture stenosis (CPAS).

Study design

The nasal cavities of seven children with CPAS were identified and were compared to the nasal cavities of 13 neonates (<30 days old) who had received CT scans for other indications.

Methods

The width of the nasal cavities was measured at the pyriform aperture, choana, and at two standardized points along the lateral nasal wall (LW-1 and LW-2) between the pyriform aperture and choana.

Results

Comparison between neonates with and without CPAS demonstrates significant narrowing of the nasal cavity (not just the pyriform aperture) in infants with CPAS. Significantly smaller nasal width was noted at pyriform aperture, LW-1, and LW-2 (p < 0.01, p < 0.01, p = 0.02). No significant narrowing was seen at the choana.

Conclusion

These findings suggest that CPAS is associated with narrowing of the anterior 75% of the nasal cavity. This has implications for surgical management because simple pyriform aperture ostectomy may not be sufficient to relieve symptoms of obstruction.  相似文献   

19.

Aim

This study introduces a new device to facilitate perforation size measurement during “butterfly” myringoplasty. The purpose of this study is to evaluate the use of ‘otological compass’ on short-term results of inlay cartilaginous ‘butterfly’ tympanoplasty technique in adult patients.

Study design

Prospective, randomized, controlled, blinded.

Patients and methods

This study included 25 patients who underwent inlay cartilage myringoplasty. All operations were performed under general anesthesia by the same surgeon with a microscope-assisted approach. The patients were divided randomly and consecutively into two groups: Group 1 (n = 12) had perforation dimensions and shape measured using the Otologic Compass (OC) and the control group (n = 13) had perforation measured by means of a Fisch elevator. The duration of surgery, number of trials for correct placement of the cartilage graft, results and complications of the surgery were evaluated and compared.

Results

The mean follow-up duration was 6 months. Groups were similar in terms of age and perforation diameters (p > 0.05). Average number of cartilage shaping before satisfactory graft fitting was significantly fewer in the OC group: 1.1 ± 0.3 and 2.2 ± 0.6 trials for OC and control groups, respectively (p < 0.001). Mean duration of preparation and satisfactory graft fitting was 9.6 ± 4.2 minutes in the OC group whereas it was 18.1 ± 5.2 minutes for the control group. Operative duration was significantly shorter in the OC group (p < 0.001). At the end of the follow-up period, successful closure occurred 91.7% and 84.6% patients in the OC and control groups, respectively (p > 0.05). The mean preoperative to postoperative three-tone air-bone gap improved 7.9 dB and 9.0 dB in OC and control groups, respectively (p > 0.05).

Conclusion

This study shows that OC presents as a useful tool that expedites and refines butterfly myringoplasty procedure. The number of cartilage shaping prior to satisfactory graft fitting revealed significantly better results: almost all surgeries in the OC group were complete after a single cartilage shaping attempt.  相似文献   

20.

Objective

A prospective randomized unblinded controlled trial was conducted by comparing acellular dermis with temporalis fascia as graft materials in tympanoplasty (type 1) in terms of operative time, postoperative pain, graft success rate, and audiologic outcome.

Study design

Forty-two patients with (inactive) chronic suppurative otitis media of tubotympanic type were randomized, matched, and divided equally into 2 groups of 21 each. One group underwent tympanoplasty (type 1) via transcanal route using temporalis fascia graft and the other using acellular dermis. Both groups were compared for operative time, postoperative pain, graft success rate, and audiologic improvement in hearing.

Results

There was a statistically significant reduction in operative time (P < .05) and postoperative pain (P < .05) in the acellular dermis group. However, there was no statistical difference in graft success rate (P > .05) and hearing improvement (P > .05) between both the groups.

Conclusion

Results of tympanoplasty using acellular dermis as graft material are comparable to that using temporalis fascia in terms of graft uptake and hearing improvement. However, tympanoplasty using acellular dermis has the advantage of shorter operative time and lesser postoperative pain.  相似文献   

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