Continuing Education Activity

Tympanic membrane perforation is a disruption of tympanic membrane integrity that may be underreported because many patients exhibit minimal or no symptoms. The condition arises from infectious, traumatic, or iatrogenic causes, including acute otitis media, barotrauma, or insertion of tympanostomy and ventilation tubes. Although small, controlled perforations can improve middle ear aeration in Eustachian tube dysfunction, spontaneous or traumatic perforations disrupt the sound-conducting mechanism, resulting in conductive hearing loss, otorrhea, or tinnitus. Chronic infection and repeated perforation increase the risk of cholesteatoma and mastoiditis, leading to progressive hearing loss and, in severe cases, intracranial complications.

Diagnosis is established through otoscopic and audiometric evaluation to determine the size, location, and functional impact of the defect. Most acute perforations heal spontaneously. Persistent or large defects require medical or surgical repair, such as myringoplasty or tympanoplasty, to restore membrane continuity and hearing. Prognosis is generally favorable with prompt management and avoidance of recurrent infection or trauma.

This activity for healthcare professionals is designed to sharpen learners' skills in evaluating and managing tympanic membrane perforation. Participants will broaden their grasp of the condition's etiology, risk factors, pathophysiology, clinical presentation, and evidence-based diagnostic and treatment recommendations. Enhanced competence will empower clinicians to collaborate with interprofessional teams providing care for affected individuals.

Objectives:

• Identify patients affected by tympanic membrane perforation requiring surgical closure through accurate assessment of size, location, chronicity, and impact on auditory function.
• Implement personalized, evidence-based strategies for managing tympanic membrane perforation and mitigating its potential sequelae.
• Improve patient understanding of tympanic membrane perforation, emphasizing ear protection, adherence to medical therapy, and the importance of follow-up for optimal healing and hearing recovery.
• Implement effective collaboration and communication among interprofessional team members to improve outcomes and treatment efficacy for patients with tympanic membrane perforation.

Introduction

The tympanic membrane serves a fundamental role in sound transmission and amplification.[1] Comparable to a drumhead, this structure vibrates in response to sound waves. These vibrations are conveyed to the ossicles of the middle ear and subsequently transmitted to the cochlea of the inner ear, where mechanical energy is converted to neural impulses.[2]

The tympanic membrane is an oval, semitranslucent structure divided into 2 main parts: the pars tensa, which constitutes the majority of the membrane and is thickened around the outer margin to form a fibrocartilaginous annulus, and the pars flaccida (Shrapnell membrane), a small triangular segment situated superior to the lateral process of the malleus.[3] Otoscopy or otomicroscopy is used for the physical examination of the tympanic membrane. When illuminated, the anterior cone of light radiating anteroinferiorly from the umbo represents a normal finding. The membrane typically appears pearly grey, translucent, lustrous, and mobile upon insufflation.

The tympanic membrane consists of a cartilaginous connective tissue layer, externally covered by skin and internally lined by mucosa, functioning to separate the external auditory canal from the middle ear and ossicles. Tympanic membrane perforation (TMP) refers to a rupture that disrupts this separation, creating a direct communication between the external and middle ear. Loss of membrane integrity impairs normal vibratory function and may cause conductive hearing loss.

The predominant cause of TMP is acute or chronic otitis media, with acute infection likely producing ischemic changes secondary to altered middle ear pressure.[4] TMP can occur at any age but is most frequently observed in younger patients, in whom infection is common, whereas trauma becomes a more frequent etiology with advancing age. Men are more likely than women to experience TMP.

Rupture of the tympanic membrane may result from head trauma, acoustic blast injury, direct membrane trauma, barotrauma, or iatrogenic causes such as surgery. Affected patients may present with otalgia, bloody otorrhea, conductive hearing loss, vertigo, or tinnitus. Spontaneous healing may occur in the absence of infection, depending on the size, location, and chronicity of the TMP. Patients should be instructed to avoid water exposure during the healing process to prevent secondary infection. Clinical manifestations of TMP are generally consistent regardless of the underlying etiology.

TMPs vary in size and location. Central perforations, which are most common, are typically favorable for spontaneous healing. Unfavorable perforations are characterized by annular or attic involvement or the presence of chronic otorrhea, which increases the likelihood of cholesteatoma and mastoiditis (see Image. Cholesteatoma). Differentiation between a TMP and a retraction pocket is essential, as a retraction pocket represents an invagination of a portion of the tympanic membrane that may accumulate squamous debris or cholesteatoma.[5]

The evaluation and management of TMP require a comprehensive patient history, including the duration of the perforation and associated symptoms such as hearing loss, otorrhea, vertigo, and tinnitus. Audiometric and tympanometric assessments are recommended to quantify auditory function and characterize the conductive deficit. Laboratory tests and imaging studies generally provide limited diagnostic utility but may be indicated in the presence of complications such as cholesteatoma, mastoiditis, or facial nerve involvement.

Medical management focuses on controlling otorrhea, with careful selection of topical agents to avoid ototoxicity and potential sensorineural hearing loss.[6] Surgical intervention may involve a variety of techniques, although conservative management is appropriate for patients with minimal water exposure, negligible hearing impairment, and no history of recurrent infections. Surgical risks include TMP recurrence, reported in up to 10% of cases, and the possibility of unchanged or worsened hearing following repair.[7]

Etiology

TMPs arise from 3 principal causes—infectious, traumatic, or iatrogenic—and are most often identified through otoscopic examination.[8] Infection represents the leading etiology, encompassing acute and chronic otitis media, chronic suppurative otitis media, and otitis externa.[9]

Traumatic TMPs occur due to direct or indirect mechanical forces, including blunt blows to the ear, falls onto water surfaces during activities such as waterskiing or surfing, or barotrauma from atmospheric pressure changes, explosions, or “kiss injuries.” Excessive water pressure, as encountered in scuba diving or snorkeling, and direct trauma from instruments, slag injuries, or caustic burns can also induce TMP. Acoustic trauma, attempts at foreign body or cerumen removal—including use of cotton swabs—and lightning strikes have been reported as additional causes.[10] Iatrogenic TMP may result from otologic procedures, including myringotomy with or without pressure equalization tube placement, tympanoplasty with or without mastoidectomy, stapedectomy, ossicular chain reconstruction, and cochlear implantation.

Epidemiology

The overall incidence of TMP is unknown, as many perforations heal spontaneously. However, ruptured tympanic membranes are frequently encountered in clinical practice. A study of nearly 1,000 patients in the U.S. reported that traumatic TMP occurred more commonly in men than in women, with a ratio of 1.49:1.[11] A study from Nigeria involving 529 patients demonstrated similar findings, with a male-to-female ratio of 2:1.[12] In another study of 80 participants, the mean age of patients with TMP was 26.7 years, with a standard deviation of 14.6 years, and children represented 25% of the sample.[13] Although myringotomy with pressure equalization tube placement provides therapeutic benefits, a study reported that up to 3% of children undergoing the procedure may develop TMP as a complication.[14]

Pathophysiology

The TMP repair mechanism varies according to the etiology of the rupture and the characteristics of the resulting defect. A thin membrane or neomembrane develops in some cases, which may be difficult to distinguish from the original TMP. Neomembranes may give rise to deep retraction pockets, which may predispose to cholesteatoma formation.[15] Approximately 80% of TMPs heal spontaneously, with relatively few requiring surgical intervention.[16]

Effective management of TMP primarily focuses on the prevention of infection. The treatment may include the temporary use of otologic drops in select cases. Animal studies suggest that TMPs with bloody or watery discharge may heal more rapidly.[17] Patients with known TMP should observe strict dry ear precautions to minimize exposure to pathogen-contaminated water. Routine oral antibiotics are generally unnecessary, and oral corticosteroids may delay membrane healing. Some otolaryngologists advocate the use of dry topical preparations in cases of fungal infection.

Perforation resulting from foreign body insertion or attempts at ear cleaning occurs due to direct penetration of the tympanic membrane, typically affecting the pars tensa. Slag or chemical injuries can produce thermal or caustic damage, which may inhibit spontaneous healing or closure. The pars tensa, the largest and thinnest region of the tympanic membrane, comprises only a few cell layers and is located in the anteroinferior portion of the membrane. The thinness of this structure makes it the most vulnerable to tearing, particularly from blunt or acoustic trauma.

Factors contributing to delayed or failed healing include preexisting tympanosclerosis, malleus injury, large or pantympanic perforations, and marginal perforations, especially in patients with chronic suppurative otitis media or early cholesteatoma formation.[18] In select cases, topical application of epidermal growth factor or fibroblast growth factor via patch methods has demonstrated efficacy in promoting TMP closure.[19]

History and Physical

Some patients with TMP may be asymptomatic or experience only mild hearing impairment, particularly in cases of longstanding perforations resulting from previous infections, trauma, or surgical procedures such as ear ventilation tube placement during childhood. TMPs are frequently identified incidentally during physical examination. In contrast, patients with acute TMP may present with sudden-onset otalgia, otorrhea, hearing loss, vertigo, or tinnitus.

Physical examination should include otoscopy or microotoscopy to visualize the external auditory canal and tympanic membrane directly. Documentation should specify the location and size of the TMP, the presence of middle ear abnormalities such as ossicular chain discontinuity, the characteristics of any discharge, squamous debris, and potential retraction pockets. Suction may facilitate detailed inspection but may be limited by patient discomfort, dizziness, or pain. A comprehensive neurological assessment, including cranial nerve evaluation, is recommended to identify potential complications.

Evaluation

A general hearing assessment may include Weber and Rinne tests. However, many otolaryngologists prefer pure-tone audiometry and tympanometry for definitive evaluation. Otoscopic confirmation of TMP is required even when tympanometry indicates an abnormally large ear canal volume. Audiometric testing should be performed both prior to and following any repair procedure. Inconsistent conductive hearing loss may indicate middle ear pathology or ossicular chain discontinuity. Inconsistent sensorineural hearing findings should also be carefully documented.

In some cases, pure-tone audiometry may demonstrate normal hearing. Imaging studies are generally unnecessary unless clinical suspicion of middle ear disease, ossicular destruction, or cholesteatoma arises. In such cases, computed tomography of the temporal bone with thin-section cuts is preferred, providing superior spatial resolution compared with magnetic resonance imaging.[20]

Treatment / Management

Although many TMPs heal spontaneously, patients often require management of hearing loss and mitigation of infection risk during the healing period.[21] Clinical manifestations may include pain, otorrhea, tinnitus, and vertigo. The primary goal of medical management is to control otorrhea. In some cases, the etiology of the TMP may be unclear. However, preventing contamination of the middle ear is essential to promote healing and avoid complications. Conservative management may be appropriate when hearing loss is minimal or absent. Additionally, middle ear ventilation through a TMP can provide therapeutic benefit in patients with Eustachian tube dysfunction. Hearing aids offer a nonsurgical alternative for patients experiencing TMP-related hearing impairment.

Surgical repair is indicated in many patients with TMP. All candidates should undergo a comprehensive otologic assessment, including pure-tone audiometry and tympanometry, performed both preoperatively and postoperatively. Selected patients with suspected middle ear disease should also undergo computed tomography of the temporal bone to evaluate the ossicular chain and adjacent structures.

Surgical Repair Techniques

Surgical management of TMP encompasses multiple techniques, each selected based on perforation characteristics, anatomical considerations, and desired audiological outcomes, reflecting differences in efficacy, healing time, and technical requirements. These approaches are explained below.

Cigarette paper patch

Cigarette paper patching involves freshening the edges of the TMP, often with the application of phenol, to promote adherence and regrowth. The paper serves as a scaffold, supporting membrane regeneration. This technique is suitable for perforations smaller than 3 mm and represents a simple yet effective method for early TMP repair, particularly in cases without active otorrhea. Reported success rates reach 67%.[22] The procedure provides notable improvement in air-conduction hearing, especially at low frequencies.[22]

Fat-plug and perichondrium myringoplasty

Fat-plug and perichondrium myringoplasty also require edge freshening, typically performed with phenol. Autologous fat or perichondrium is harvested from the postauricular sulcus or the ear lobe and used to close the perforation. This approach is feasible for TMPs smaller than 3 mm. Reported closure rates for fat-plug and perichondrium myringoplasty are both 86.7%, indicating high efficacy in achieving membrane repair.[23]

Other myrinoplasty alternatives

Gelfoam plug application for TMP closure demonstrated an overall eardrum closure rate of 83%. Preoperative pure-tone average was 19 dB, which improved to 16 dB postoperatively, indicating measurable auditory benefit.[24]

Fibrin glue or a patch composed of a hyaluronic acid ester combined with a dressing component has also been used for TMP repair.[25] A recent study by Kanai et al involving 216 patients (234 ears) reported high success rates for TMP closure with this approach, accompanied by significant hearing improvement and no severe complications.[26] Complete closure was achieved in 68.8% of ears after the 1st treatment, with subsequent treatment achieving closure rates of 22.6%, 4.7%, and 0.9% for the 2nd, 3rd, and 4th interventions, respectively. Seven ears (3.0%) did not achieve complete closure. Mean air-conduction thresholds improved across low, middle, and high frequencies, and mean air-bone gaps also demonstrated improvement.

Medial or mediolateral tympanoplasty

Medial or mediolateral tympanoplasty may be performed via an in-the-canal or postauricular approach under local or general anesthesia, depending on patient factors and surgical preference. The most commonly used grafting material is the temporalis fascia, although some surgeons utilize allografts in selected cases. This technique demonstrates a success rate of 96%, even in large anterior or subtotal TMPs. Reported failures are primarily attributable to infection, anterior blunting, or cholesteatoma formation.[27]

Endoscopic transcanal myringoplasty

Endoscopic transcanal myringoplasty has demonstrated effective closure of the air-bone gap to within 20 dB in 79 ears, corresponding to 86.8% of cases in the study by Tseng et al.[28] Comparable outcomes may be achieved using palisade cartilage grafts relative to the 1-piece composite cartilage-perichondrium technique for endoscopic TMP repair.[29]

Inlay butterfly transcanal cartilage tympanoplasty

Inlay butterfly transcanal cartilage tympanoplasty employs only a cartilage graft to repair TMPs. This technique is suitable for select cases and demonstrates comparable graft take rates and audiological outcomes to conventional underlay tympanoplasty, offering the advantage of reduced operative time.[30] In a study by Jumaily et al, the mean air-bone gap decreased from 13.4 dB to 6.9 dB following the procedure.[31] An overall success rate of 96.6% has been reported by Ryan et al.[32]

Overlay graft tympanoplasty

The overlay graft technique of tympanoplasty is highly effective for repairing the tympanic membrane, particularly in more complex cases such as revision surgery, subtotal perforations, and mesotympanic cholesteatoma. This approach provides reliable closure and favorable functional outcomes in situations where conventional techniques may be less effective.

Differential Diagnosis

TMP diagnosis may be challenging. Clinicians treating patients with ear infections may erroneously assume the presence of a TMP, and otorrhea may itself be mistaken for membrane rupture. The differential diagnosis includes the following:

• Acute otitis media
• Chronic suppurative otitis media
• Otitis media with effusion
• Otitis externa
• Middle ear osteoma
• Cholesterol granuloma
• Ear foreign body
• Bullous myringitis [33]
• Tympanosclerosis and myringosclerosis
• Otosclerosis [34]
• Middle ear cholesteatoma, both acquired and congenital
• Ramsay Hunt syndrome [35]
• Granulomatous diseases, including granulomatosis with polyangiitis (Wegener granulomatosis), histiocytosis X, and mycobacterial infection
• Primary auricular or temporal bone malignancy (rare)

Systematic assessment combining otoscopy, audiometric evaluation, and selective imaging allows clinicians to distinguish TMP from other otologic disorders. Accurate diagnosis supports optimal treatment planning and improves patient outcomes.

Prognosis

The prognosis for uncomplicated TMP is generally favorable, with low rates of morbidity and minimal risk of persistent hearing impairment. Patients who experience reperforation are at increased risk of complications, including infection, middle ear pathology such as cholesteatoma, and additional trauma. Therefore, long-term follow-up is recommended even after successful TMP repair and should include regular otoscopic examination, pure-tone audiometry, and tympanometry to monitor membrane integrity and auditory function.

Complications

Surgical repair of TMP carries a risk of both immediate and delayed complications, ranging from infection and graft failure to auditory and vestibular disturbances. Careful monitoring and assessment are essential to identify these complications promptly and guide appropriate management.

Immediate complications include the following:

• Infection
• Otorrhea
• Bleeding
• Pain
• Dizziness
• Tinnitus
• Adverse reactions to anesthesia
• Graft failure and reperforation
• Facial nerve paresis or paralysis
• Hearing loss

Delayed complications include the following:

• Infection
• Pain
• Graft failure and reperforation
• Otorrhea
• Cholesteatoma
• Facial nerve paresis or paralysis
• Tinnitus
• Dizziness
• Taste disturbance
• Hearing loss
• Perilymphatic fistula (rare)

Beyond graft failure and reperforation, the most significant complication of TMP repair is hearing loss. Reported incidence rates of postoperative hearing impairment vary across studies. Therefore, comprehensive evaluation with pure-tone audiometry and tympanometry should be performed for all patients both before and after surgical or medical management of TMP.

Postoperative and Rehabilitation Care

Dry ear precautions are recommended following all TMP repair techniques. Surgeons commonly employ absorbable or removable packing and may prescribe topical otologic drops during the postoperative period. A temporary head-pressure dressing is sometimes applied for the first 24 hours. Oral antibiotics are rarely indicated. Patients should be counseled that hearing may transiently decline during the healing process before improvement occurs. Prompt medical assessment is indicated for the emergence of postoperative symptoms, including hearing loss, intensifying pain, vertigo, tinnitus, facial weakness, headache, nausea, and vomiting.

Consultations

All patients should undergo an audiology consultation. Selected individuals may additionally benefit from referral for speech therapy assessment. Recommendations for speech therapy should be guided by the severity of hearing impairment and its impact on communication or language development.

Deterrence and Patient Education

Patients presenting with recent ear trauma, otorrhea, pain, dizziness, tinnitus, or hearing loss should undergo a comprehensive evaluation for TMP. Pure-tone audiometry and tympanometry are recommended to assess auditory function. Visible TMPs may be monitored for 4 to 6 weeks with serial otoscopic examinations, audiometry, and tympanometry. Patients should adhere to dry ear precautions and avoid using foreign objects like cotton-tipped applicators for ear canal hygiene. Activities that involve water immersion or rapid pressure changes, including swimming, scuba diving, and air travel, must be avoided. Evaluation and management of secondary infection and assessment for potential cholesteatoma should be completed prior to surgical repair. Patients must be counseled regarding the risk of both short- and long-term hearing impairment.

Pearls and Other Issues

The following key points summarize critical considerations in the diagnosis, management, and follow-up of TMP:

• Not all patients presenting with otorrhea have TMP.
• TMPs most commonly result from trauma or infection.
• Many TMPs undergo spontaneous healing. Therefore, most surgeons recommend a 4- to 6-week observation period prior to considering surgical repair.
• All patients with TMP should undergo otoscopy, pure-tone audiometry, and tympanometry both before and after medical or surgical intervention.
• CT of the temporal bone is generally unnecessary unless additional middle ear pathology is suspected.
• Failure of surgical TMP repair may result from the chosen technique, infection, repeat trauma, or underlying middle ear disease, including cholesteatoma.
• Hearing loss associated with TMP may be variable and difficult to predict.

Preventive measures, including patient education, infection control, and avoidance of high-risk activities, reduce the incidence and recurrence of TMP. Comprehensive evaluation and adherence to evidence-based management improve clinical and functional outcomes.

Enhancing Healthcare Team Outcomes

Management of TMP requires a coordinated, interprofessional healthcare team to deliver patient-centered care, optimize outcomes, ensure safety, and enhance team performance. Key team members include physicians, nurses, audiologists, speech therapists, and pharmacists, each contributing essential expertise.

All patients should undergo a comprehensive head and neck evaluation, including otoscopy or microotoscopy, pure-tone audiometry, and tympanometry. Early detection of TMP, as well as any evidence of infection, trauma, or middle ear pathology such as cholesteatoma, is critical.

Effective communication among team members is essential for accurate assessment. Physicians and audiologists must promptly determine the severity of the TMP and identify associated conditions. Clear, timely communication supports precise diagnosis and informs appropriate management decisions, whether monitoring with follow-up or proceeding to surgical repair, thereby maximizing therapeutic success.

Ethical principles should guide all care decisions. Informed consent upholds patient autonomy while adhering to beneficence and nonmaleficence. Patient preferences must remain central to decision-making, promoting shared, informed choices. Ongoing education and interprofessional team training ensure alignment with current standards of care.

Some patients with TMP may not require or desire repair, whereas others may request intervention but initially present as unsuitable candidates. The timing of repair, in the context of overall patient health, may be as critical as the chosen surgical technique. While some patients may prefer hearing aids, the use of these devices in TMP requires careful consideration, as they can increase the risk of complications such as otorrhea and infection.

Patients should receive counseling regarding the potential risks of TMP repair, including long-term hearing loss, graft failure, and cholesteatoma development. A patient-centered approach prioritizes individual well-being and informed choice. Interprofessional management in TMP ensures comprehensive care, reduces complications, and emphasizes patient safety and quality outcomes.

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Disclosure: Andrew Sutton declares no relevant financial relationships with ineligible companies.

Disclosure: Abram Weimer declares no relevant financial relationships with ineligible companies.