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P. Fathima1, S. Rajasekaran2, M.K. Rajasekar3

1,2,3Department of Otorhinolaryngology, SreeBalaji Medical College & Hospital, Chromepet, Chennai

*[email protected]


Chronic suppurative otitis media is characterized by hearing loss and ear discharge. Myringoplasty is one of the various surgical procedures for the management of chronic suppurative otitis media tubotympanic type.

Myringoplasty is defined as surgical repair of tympanic perforation without ossicular reconstruction. It is a beneficial procedure done for closure of tympanic membrane and for hearing improvement.

Keywords:Myringoplasty, Tympanic membrane perforations, audiometry, ossicular chain, otitis media


Chronic suppurative otitis media is the most common otorhinolaryngology problems and one of the major health problems around the world. Chronic suppurative otitis media is a chronic infection of mucosa lining middle ear cleft. Chronic suppurative otitis media is classified into active and inactive mucosal and squamous type. It is long standing infection of middle ear cleft characterized by ear discharge and its complications is the one of the life threatening conditions in early centuries. With introduction of antibiotics and use of microscopes and endoscopes in the surgical field, there have been revolutionary advances in the control of disease. It is a major cause of deafness in India. Prevalence of Chronic suppurative otitis media in developing countries is around 72 cases per 1,000 inhabitants and in world is over 20 million. In India, prevalence of chronic suppurative otitis media is approximately 2%.1

Tympanic membrane perforations can lead to recurrent ear infections and hearing loss. In Brazil, studies had shown an association between chronic otitis media and hearing loss in school going children. Hearing loss in inactive mucosal (tubotympanic) disease is usually conductive hearing loss. In adults Chronic suppurative otitis media causes psychosocial challenges and affect the quality of the life.1

Surgical intervention has become necessity to relieve the patients from their complaints and to reduce social disability among many peoples. Tympanic membrane reconstruction was attempted for many years. Different technique and grafts were used in reconstruction. Using pure tone audiometry hearing loss of patients can differentiated into conductive hearing loss or sensorineural hearing loss or mixed. Conductive hearing loss is reversible.

Myringoplasty is a reconstructive surgical procedure of tympanic membrane perforation in a normally functioning middle ear ossicles and patent Eustachian tube. Reconstruction of tympanic membrane provides a barrier between middle ear mucosa and the external pathogens. The goal of this surgery is to improve hearing by closure of perforation and eradicate middle ear disease. This prospective and observational study focus on to find the outcome of myringoplasty in term the hearing improvement after 3 months and 6months in different sizes of perforation taking into criteria of Air Bone closure and Air conduction threshold.


A prospective quantitative study was conducted in SreeBalaji Medical College and hospital, chromepet, Chennai, India from November 2014 to September 2016. This study was done to


analyze hearing gain in patients with inactive mucosal (Tubotympanic) type of CSOM after myringoplasty. This study includes 50 patients from urban population of chromepet, Chennai attending outpatient department of ENT.


Inactive mucosal CSOM (TT) type.

Unilateral chronic suppurative otitis media having conductive hearing loss.

Dry ear for 3months before myringoplasty. Size and location of perforation: small, medium, subtotal perforation. Conductive hearing loss less than 40dB.Middle ear conducting apparatus functioning normally.Normal Eustachian tube function in all patients.Adequate cochlear reserve.

Age between 20yrs to 45yrs,both males and females.

No focal sepsis of infection from nose and throat.


Active CSOM mucosal type (wet ear).

Unsafe type CSOM: Perforation in pars flaccid, cholesteatoma.

Marginal and total perforation in CSOM TT.

Patients having mixed or sensorineural hearing loss type.

Patients with vertigo and tinnitus.

Middle ear ossicles discontinuity and fixity.

Poor cochlear reserve.

Tympanosclerotic patch.

History of Revision myringoplasty in our institution and from other institutions.

Age less than 20yrs and more than 45 yrs.

Focal sepsis of infection from nose, mastoid and pharynx.

Immunocompromised disease in patients.


Detailed clinical history and examination was done in all 50 patients who underwent myringoplasty. Pure tone audiometry was performed preoperatively and postoperatively in all patients using elkon audiometer in sound attenuated room. Air conduction and bone conduction threshold values are tested and plotted in a graph by audiologist. Pure tone average calculated to evaluate degree of hearing loss in decibels. All findings are documented as per proforma.

Informed and written consent taken from all patients before surgery.

Clinical examination

In our study, detailed history which includes history of ear discharge, hearing loss and any associated symptoms such as vertigo and tinnitus.

Past history and treatment history such as medical and surgical management for the same complaints was taken.

General physical examination including systemic examination was done.

Examination of nose and throat

Clinical examination of nose and throat was done for selected patients.

Indirect laryngoscopy and diagnostic nasal endoscopy was done for all patients.

Examination of ear:

Examination of ear was performed by otoscope.

Examination under microscope (EUM):

Otoscopic examination was confirmed by examination under microscope.

Visualization of external auditory canal and tympanic membrane


Perforation was classified into small, medium and subtotal depending upon size of perforation involving the number of quadrants of tympanic membrane.

Confirming inactive stage of CSOM type

Eustachian tube function was determined by Siegel’s speculum and valsalva maneuver.

Fig 16: Types of Perforation

Turning fork test:

Turning fork tests include Rinne’s, Weberand Absolute bone conduction test was performed using all the3 frequencies that are 256,512,1024KHz to determine the type and degree of deafness.

Rinne’s test:- Air conduction (AC) and bone conduction (BC) compared.

Conductive deafness-AC < BC:-Rinne’s test-negative

Sensorineuraldeafness- AC > BC:- Rinne’stest- positive

False Rinne’s test:- Severe sensor neural deafness.

Weber’s test:- Bone conduction of both ears are compared


BC lateralized to affected ear-conductive deafness.

BC lateralized to normal ear-sensorineural deafness.

Absolute bone conduction (ABC) test:- Measures cochlear function.

BC not reduced:- Conductive deafness

BC reduced:- Sensorineural deafness

Fig 17: Examiner Performing Turning Fork Test

Pure tone audiometry:

Pure tone audiometry is used to determine hearing threshold sensitivity at discrete frequencies.

Pure tone audiometry performed preoperatively and postoperatively using clinical audiometer calibrated to ISO standard. Audiogram recorded at the frequencies 250Hz, 500Hz, 1000Hz, 2000Hz and 4000Hz Air conduction and bone conduction threshold values was plotted in a graph by a trained audiologist.

Fig 18: Audiologist Performing PTA


Degree of hearing loss in decibels was calculated by pure tone average. The preoperative and postoperative air bone gap was determined at the frequencies 500Hz, 1000Hz and 2000Hz. All the data was documented.

Preoperative investigations

The following investigation was taken for the study group


X-ray mastoid (Schullre’s view): Type of mastoid pneumatisation.


Complete hemogram, fasting and postprandial blood sugar and serum electrolytes.


X ray paranasal sinuses: For sinus pathology.


X-ray chest PA view.



Surgical procedure


Endoscopic Myringoplasty was done under General anaesthesia (GA) in all selected patients.

Preparation of the patient:

A 2-3cm area of hair was shaved above and behind auricle.

Patient positioning

The patient’s head was placed on doughnut shaped pillow for stability of head and also allows the head to be rotated along axis of neck. The patient was brought close to the edge of bed.

Surgical technique

Underlay technique of Myringoplastywas performed for all patients using a 0 degree Hopkins rigid endoscope.


Skin preparation and graft harvesting:

Using post aural incision temporalis fascia graft harvesting was done. Skin was cleaned using betadine solution and dried. Using 2% lignocaine with 1:100000 adrenaline infiltrations were given. Using Mollison’sself retaininghaemostatic mastoid retractor was inserted to expose areolar tissue and incised along linea temporalis. Areolar tissue was dissected from temporalis fascia using fresh 15" scalpel blade. A large piece of temporalis fascia graft was harvested .Graft was placed on a Teflon block, tease out to a thin uniform layer and was allowed to dry. The external auditory canal was flushed with betadine solution and the debris was removed.

Transcanal exposure:


Using 2%lignocaine with 1:100000 adrenaline solution four quadrants of cartilaginous part of external auditory canal and bony canal were infiltrated using ear speculum.

Freshening of margins of perforation:

Using 00 degree Hopkins’s endoscope, the rim of tympanic membrane perforation was excised and the under surface of the remnant tympanic membrane denuded of squamous epithelium.

Fig 19: Freshening of Margins of Perforation

Canal incisions and elevation of tympanomeatal flap. Using Beaver knife blade a vascular strip was outlined by making incisions at the tympanosquamaous and tympanomastoid suture lines. A small incision was put inferiorly and superiorly based flaps were created by making right angled incisions to the vascular strip incisions. The medial end of the vascular strip was formed by connecting the two primary incisions approximately 2mm lateral to annulus. The skin of the inferior ear canal was elevated down to the fibrous annulus creating a flap. The fibrous annulus was mobilized out of its sulcus and displaces anterior to malleus. The under surface of the tympanic membrane remnant was then denuded using sickle knife and a cupped forceps. The manubrium of the malleus was denuded, preserving the annulus. Haemostasis was achieved prior to graft placement with gel foam.

Fig 20: Tympanomeatal Flap



Assessment of ossicular chain:

The status of middle ear ossicles was evaluated for continuity and mobility in each patient and was found to be intact in all patients. Ossicular integrity is checked by applying mild pressure at handle of malleus and observing the movement of incudo-stapedial joint. Round window reflex was elicited and was present in all patients.

Fig 21: Ossicular Chain


Preparation of graft bed and graft placement:

The graft was trimmed to size and a slit was made in the superior aspect of the graft to accommodate medial to the manubrium placement. Gel foam placed at the Eustachian tube region in the middle ear. With the right angle hook the graft was slid medial to the manubrium and onto the lateral attic wall. Using House annulus elevator, graft was tucked under the drum remnant anteriorly and inferior. The remaining graft was draped along posterior canal wall and canal flap was repositioned over the graft. All edges of the annulus were evened and smooth out the graft. Gel foam was placed in external auditory canal.



Post auricular suture was done with 4-0 ethylone suture material for all cases. Mastoid dressing was done.

Postoperative care:

All patients were kept nil per oral for 5 hours following GA.

Intravenous broad spectrum antibiotics, ceftriaxone were administrated for all patients. Analgesics, antihistaminic and multivitamin were given for about 5 days.

In all patients mastoid dressing changed after 48hrs.

All the patients were discharged with mastoid dressing after 5 days.


All the patients were advised for suture removal on eighth day after surgery.

Postoperative advice

The following advice was given to all patients:


Avoidance of the head bath for three weeks


Swimming and air travel should be avoided for about at least one month


Avoid excess blowing of nose.

Follow up

All the patients were followed regularly for 6 months period in this study group. Follow up done weekly for one month followed by once in 4 every week.

During the follow up period the hearing assessment with turning fork tests and pure tone audiometry was done after three months and six months in all patients after myringoplasty. The improvement of AB gap was documented during the follow up period. After six month follow up we calculated hearing improvement by reduction of AB gap. We considered the hearing gain in all patients as

the success of myringoplasty. The postoperative AB closure less than 10dB was considered successful.

Fig 22: Preoperative PTA Fig 23: Postoperative PTA


Fig 24: Postoperative Graft Uptake


In our study, 50 patients who underwent myringoplasty were included. We analyzed the age, sex incidence and various other factors influencing the audio logical benefit postoperatively.

Table 1: Age Distribution in our Study Population




20-25 6 12%

26-30 15 30%

31-35 10 20%

36-40 11 22%

41-45 8 16%

Chart 1: Showing Age Distribution in study population


In our study, 50 myringoplasty were performed between age group 20yrs to 45yrs.

Table1: Illustrates range and frequency of study population in which large number of patients were between the age group 26-30yrs which was 15(30%) followed by 11(22%) patients belonging to 36-40yrs age group.

Table 2: Sex Distribution In Study Population



20-25 3 3 6

26-30 9 6 15

31-35 3 7 10

36-40 7 4 11

41-45 4 4 8

TOTAL 26 24 50

PERCENTAGE 52% 48% 100%

Chart 2: Graphical Representation of Sex Distribution in Study Population

In our study, overall 26(52%) males and 24(48%) females underwent myringoplasty. Age group of 20-45yrs were included. Males were more common than female with sex ratio of Male:

Female 1.1:1.

Table 3: Number and Size of Perforation and Audiological Benefit












Small 4 34.15 23.45 44.0 44.0 44.0

Medium 22 36.99 22.77 8.0 8.0 52.0

Subotal 26 37.53 23.17 48.0 48.0 100. 0

Chart 3: Graphical Representation Showing Incidence of Size of Perforation And Audio logical Benefit

In our study, out of 50 patients who underwent myringoplasty, 4(8%) patients had small perforation and 22(44%) patients had medium and rest 26(52%) patients had subtotal perforation.


CSOM is one of the commonest otorhinolaryngology problems in developing countries. It is characterized by chronic inflammation of mucoperiosteal lining of middle ear cleft.39 It is classified into healed CSOM, inactive mucosal CSOM, active mucosal CSOM, inactive squamous CSOM and active squamous CSOM. In Clinical practice the most common is inactive mucosal CSOM (tubotympanic) type and is characterized by perforation in pars tensa of tympanic membrane, ear discharge and hearing loss. Tympanic membrane perforation usually results from middle ear infection, trauma and iatrogenic causes. Different types of perforation include central, marginal and attic. Two types of hearing loss are present such as conductive hearing loss and sensorineural hearing loss. Patients present with complaints of hearing loss and ear discharge which is profuse and mucoid. Spontaneous healing of perforation is uncommon and medical management is ineffective in this regard. This type of disease is treated medically to become inactive dry stage.

Hence surgical intervention is required for closure of perforation and in turn hearing improvement. Myringoplasty is a type of tympanoplasty in which the reconstruction procedure is limited to the repair of tympanic membrane perforation alone. It is a safe and effective procedure to improve the quality of life of patients by avoiding continuous infection and allowing them in contact with water such as swimming. Ideal candidates for myringoplasty should have dry central perforation, normal middle ear mucosa, normal Eustachian tube function, good cochlear reserve


and intact ossicular chain. Several factors influence surgical results such as age, size of perforation, site of perforation, status of contra lateral ear, status of middle ear mucosa and type of graft.7,8 Temporalis fascia graft was first used in myringoplasty by Ortegren (1958-1959) because it’s easy to harvest and no size limitations.13 Pure tone audiometry has become one of the standard methods for quantitative description of degree of loss of hearing and also it provides information regarding the localization of lesion that causes loss of hearing. Quantitative assessment of deafness from air conduction threshold levels.3

0 -25dB:- Normal

26 -40dB:- Mild Deafness 41 -55dB:- Moderate Deafness 56 -70dB:-Severe Deafness 71 -90dB:- Very Severe Deafness

≥91dB:- Profound Deafness prospective study was conducted on a total of 50 cases of myringoplasty and hearing improvement was analyzed. The present study describes various parameters influencing hearing improvement after successful myringoplasty. Preoperative and Postoperative audiological evaluations were done after 3 and 6 months following myringoplasty.


In the present study all fifty patients between age group of 20yrs to 45ys underwent myringoplasty under general anaesthesia. We observed, majority of the cases were within the age group of 26-30yrs which is 15(30%) out of 50 patients followed by 11(22%) patients among 36- 40yrs age group. Rest of the six patients were in age group 20-25 yrs and11 patients in age group of 36-40yrs.

In earlier studies conducted by many authors such as J Bennett’s the average age of patient was 21.5 yrs. In another study by J B Booth the youngest was 8yr and oldest was 67yrs. From these studies it was concluded that hearing improvement was seen at an age group of 10- 50ys.40,41Ortergren reported that beyond age of 40yrs hearing results are worse than younger patients. But in our study, if there is good cochlear reserve, hearing improvement is seen in older patients as well.13,39 This is in contrast to the study conducted by Ortergren where the maximum patients were in age group more than 40yrs (25%).13

In 1985, Vartianen et al conducted study on 404 patients who underwent myringoplasty. He concluded that results in elderly patients were found to be good as in younger patients.20 In another study, Habib Ur Rehman et al had shown graft was taken up successfully in 80% cases.

They concluded success rate is affected by various factors especially age, size of perforation, graft used, mastoid cellularity and Eustachian tube function.42,43

In 1994, Alexander Kessler et al conducted a study where he concluded that reperforationwas commonly seen in patients younger than 6 years.29 In 2002, N Gupta and R K Mishap showed that the success rate was higher in 12-15 years age group (90.24%) than in 8-11 yrs age group (81.8%).44 In 1984, Warren Y.Adkins& Benjamin White concluded in their study the age of patient to have no affect on success of myringoplasty. Similarly Schukecht and lee (1971), Booth (1974), Sade et al (1981) concluded in their study that age has no role in success of myringoplasty. Also in another study, Fadl found age factor have no influence on success of graft take up.41,45-49 In 1995, Quraishi et al concluded that the average age of patients were 33 and 33 yrs in the control and study group.50


According to the review of literature there is no statistical significant relationship between the sexes with audiological benefit. In our series, we performed Myringoplasty in 26(52%) males and 24(48%) females. Males were more common than females with sex ratio of Male: Female 1.1:1.


The P value of our result was not significant, which was more than 0.001, which showed there was no statistical relationship between the sexes with audiological benefit. Hence gender has no role in the success of myringoplasty.

In 1974, Booth concluded in his study that there was more failures in females compared to men with regard to graft take up.41 In 1994, Saeed and Ghamadi conducted a study on factors influencing the success of surgery and they had 59% males and 40.95% females. In another study conducted by Ajmal they had 58.4% of males and 41.6 females. Both these studies concluded that males are more common than females.21,51 In recent series, conducted in Maharashtra out of 120 patients, 68(56.6%) were males and 52(43.3%) were females. Similar incidence was seen in a study conducted by Dornhoffer where 55% males and 5% females underwent myringoplasty. In another study by Strahan et al 62% were males and 38% were females.52-54 SIZE OF PERFORATION

The size of the perforation generally will not influence surgical outcome and hearing gain. We have considered small, medium and subtotal perforation depending upon involvement of number of quadrants of pars tensa of tympanic membrane. Among our study group, 4(8%) patients had small perforation and 22(44%) patients had medium and rest 26(52%) patients had subtotal perforation. The maximum number of patients was having subtotal perforation. Subtotal perforation was found in a similar study population by Indorewala.42 The present series analysed Preoperative and postoperative air conduction threshold for each size of perforation. In small perforation patients, mean preoperative AC threshold was 34.15dBHL and postoperative AC threshold was 23.45dBHL. In medium perforation, patients mean preoperative AC threshold was 36.99dBHL.


In literature, several studies analyzed surgical outcome and hearing gain after the myringoplasty.

In developing countries especially India awareness of chronic suppurative otitis media and benefits of myringoplasty in regard to hearing improvement is very less. This hearing impairment affects the quality of the life of the patient. The degree of hearing improvement depends on several factors such as size and site of perforation, ossicular status, surgical techniques, and type of graft and function of eustachian tube.

A prospective analysis was done from the urban population to access the hearing gain after myringoplasty in our institution. The objective of study is hearing gain after myringoplasty by comparing AB gap closure before and after surgery. The success depends on proper selection, proper workup and well planned surgery. In the present study, mean AB closure was 13.984dB and successful graft taken was 92%. Through our series overall analysis showed age, gender, size of perforation has no influence in hearing outcome and success of surgery.

Funding: No funding sources

Ethical approval: The study was approved by the Institutional Ethics Committee

CONFLICT OF INTEREST The authors declare no conflict of interest


The encouragement and support from Bharath University, Chennai is gratefully acknowledged.

For provided the laboratory facilities to carry out the research work.



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