Mastoiditis in Singapore

Severe ear pain and swelling behind your ear, especially with fever and hearing difficulties, can be concerning. Mastoiditis is a severe ear infection that requires prompt medical attention. Our ENT Specialist in Singapore provides comprehensive diagnosis and treatment for mastoiditis, using modern diagnostic tools and current treatment approaches. Understanding this condition and seeking timely treatment may help prevent serious complications and support your hearing health. Individual results and timelines may vary.

Dr Gan Eng Cern

Ear, nose and throat specialist

MBBS

MRCS (Edin)

mmed (orl)

FAMS

What is Mastoiditis?

Mastoiditis is a bacterial infection of the mastoid bone, the prominent bone you can feel directly behind your ear. This spongy bone contains air cells that connect to the middle ear, making it vulnerable to infection when middle ear infections (otitis media) are inadequately treated or particularly aggressive. The condition occurs when an infection spreads from the middle ear into the mastoid air cells, causing inflammation and potentially destroying the delicate bone structure.

In Singapore, mastoiditis cases have decreased due to widespread antibiotic use and improved access to healthcare. The condition can affect people of various ages, with young children under two years old and immunocompromised individuals being more susceptible. Mastoiditis remains a medical emergency requiring immediate ENT evaluation.

Types of Mastoiditis

Acute Mastoiditis: Acute mastoiditis develops rapidly, typically within two weeks of an ear infection. This form presents with symptoms including ear pain, swelling, and redness behind the ear. The mastoid bone becomes inflamed and filled with infected material, causing the characteristic protrusion of the ear. Acute mastoiditis may respond to antibiotic therapy when caught early, though surgical intervention may be necessary in advanced cases.
Chronic Mastoiditis: Chronic mastoiditis results from ongoing ear infections or inadequately treated acute mastoiditis. This form develops gradually over weeks to months, often with less dramatic symptoms. Patients may experience persistent ear drainage, gradual hearing loss, and intermittent pain. The chronic inflammation can lead to cholesteatoma formation (abnormal skin growth in the middle ear) and progressive bone erosion.
Masked Mastoiditis: Also called subacute or latent mastoiditis, this type occurs when partial antibiotic treatment suppresses the infection but doesn’t eliminate it. Symptoms are subtle and may include mild ear discomfort, low-grade fever, and general malaise. Masked mastoiditis is particularly concerning as the infection continues spreading despite minimal symptoms, potentially leading to serious intracranial complications.

Causes & Risk Factors

Causes

Mastoiditis may develop as a complication of acute otitis media (middle ear infection). The bacterial organisms that can be involved include:

Streptococcus pneumoniae: A common cause in both children and adults
Haemophilus influenzae: Can occur in unvaccinated individuals
Streptococcus pyogenes: May be associated with more severe infections
Staphylococcus aureus: Including antibiotic-resistant strains (MRSA)
Pseudomonas aeruginosa: May be found in chronic cases

The infection can spread from the middle ear through small channels into the mastoid air cells, where bacterial growth may cause pus accumulation and bone inflammation.

Risk Factors

Several factors may increase mastoiditis susceptibility:

Age extremes: Young children and elderly adults may face a higher risk
Immunosuppression: Diabetes, HIV, chemotherapy, or immunosuppressive medications
Recurrent ear infections: History of multiple otitis media episodes
Delayed or inadequate treatment: Untreated or partially treated ear infections
Anatomical abnormalities: Cleft palate, Down syndrome, or craniofacial anomalies
Cholesteatoma presence: Abnormal skin growth that can erode surrounding structures
Antibiotic resistance: Previous exposure to multiple antibiotics
Poor pneumatisation: Underdeveloped mastoid air cells

Signs & Symptoms

Mild Symptoms

Ear pain that persists or worsens after initial improvement
Low-grade fever
Mild hearing reduction in the affected ear
Feeling of fullness or pressure in the ear
Irritability in young children
Reduced appetite
Mild headache on the affected side

Moderate Symptoms

Swelling behind the ear, causing ear protrusion
Redness and tenderness over the mastoid bone
Persistent ear drainage (otorrhoea)
Moderate to high fever
Significant hearing loss
Dizziness or balance problems
Night sweats and chills
Swollen lymph nodes

Severe Symptoms

Severe, throbbing ear and head pain
High fever
Confusion or altered mental state
Severe vertigo with nausea/vomiting
Facial weakness or paralysis
Vision changes or double vision
Neck stiffness
Seizures

Symptoms may develop over days to weeks following an ear infection. In acute mastoiditis, progression from mild to severe can occur rapidly, making early recognition important.

Experiencing these symptoms? Consider seeking medical evaluation.

Consult with an ENT specialist for proper diagnosis and treatment options.

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When to See an ENT Specialist

Seek immediate medical attention if you or your child experiences ear pain with swelling behind the ear, especially after a recent ear infection. Red flag symptoms requiring emergency ENT evaluation include high fever, severe headache, facial weakness, vision changes, confusion, or neck stiffness. These may indicate a spreading infection requiring urgent intervention.

Consult an ENT specialist if ear infection symptoms persist beyond antibiotic treatment, or if symptoms initially improve, then suddenly worsen. Parents need to seek immediate care for infants with persistent irritability, ear tugging, or feeding difficulties accompanied by fever.

During your consultation, an ENT specialist typically performs a comprehensive examination, including otoscopy to visualise the ear canal and eardrum, palpation of the mastoid area, and assessment of hearing and neurological function. Early intervention may improve outcomes and can help reduce complication risks. The ENT specialist typically discusses your symptoms, medical history, and previous ear infections to determine the appropriate diagnostic approach.

Diagnosis & Testing Methods

Accurate mastoiditis diagnosis requires clinical examination combined with imaging studies. An ENT specialist begins with a detailed otoscopic examination, using instruments to visualise the ear canal and tympanic membrane. Signs, including a bulging eardrum, pus behind the eardrum, or sagging of the ear canal’s posterior wall, may suggest mastoiditis.

Laboratory tests include complete blood count and inflammatory markers. Ear discharge culture can help identify the causative bacteria and determine antibiotic sensitivity, thereby guiding targeted therapy.

A CT scan of the temporal bones is used for mastoiditis diagnosis. This imaging can reveal opacification of mastoid air cells, bone erosion, and abscess formation. CT scans may detect complications, including sigmoid sinus thrombosis or intracranial extension. MRI may be ordered if intracranial complications are suspected, providing soft tissue visualisation.

Audiometry testing assesses the extent and type. Tympanometry evaluates middle ear function and eardrum mobility. These tests can help determine infection severity and guide treatment planning.

Treatment Options Overview

Medical Management

Intravenous Antibiotics: Intravenous antibiotics form the cornerstone of mastoiditis treatment. Initial therapy typically combines a third-generation cephalosporin with anti-staphylococcal coverage. Treatment duration may range from several weeks, depending on severity and response. An ENT specialist adjusts antibiotics based on culture results and clinical improvement.
Oral Antibiotics: After initial IV therapy, patients may transition to oral antibiotics for several weeks. Amoxicillin-clavulanate or fluoroquinolones can provide continued coverage. Compliance with the whole course may help prevent recurrence and the development of resistance. Regular follow-up aims to monitor response.
Myringotomy with Ventilation Tubes: This procedure involves creating a small incision in the eardrum to drain middle ear fluid. Insertion of a ventilation tube maintains drainage and may help prevent fluid reaccumulation. The procedure can provide pain relief and allow direct middle ear culture. Tubes typically remain in place for several months before natural extrusion.
Supportive Care: Pain management using appropriate analgesics aims to ensure patient comfort during recovery. Antipyretics can help control fever while maintaining adequate hydration, which supports healing. Ear care instructions help prevent water from entering the ear during treatment. Regular cleaning of ear drainage may help prevent irritation of the external ear canal.

Surgical Interventions

Cortical Mastoidectomy: When medical management is insufficient or complications develop, surgical drainage may become necessary. Cortical mastoidectomy involves removing infected mastoid air cells while aiming to preserve hearing structures. The procedure creates a drainage pathway, removing infected bone and granulation tissue. Patients may experience improvement following the procedure.
Radical Mastoidectomy: Extensive disease or cholesteatoma may require radical mastoidectomy. This procedure removes more extensive diseased tissue, including some middle ear structures. While hearing may be affected, the procedure aims to eliminate infection and prevent complications. Reconstruction options can address cosmetic and functional concerns.
Combined Approach Procedures: Some cases may benefit from combined surgical approaches addressing both infection and hearing preservation. Tympanoplasty can help repair eardrum perforations, while ossiculoplasty aims to reconstruct damaged hearing bones. These procedures may be staged or performed simultaneously based on the extent.

Every patient’s condition is unique.

An ENT specialist can assess your specific situation and recommend the most suitable treatment.

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Complications if Left Untreated

Untreated mastoiditis may lead to serious complications as infection can spread beyond the mastoid bone. Intracranial complications may include meningitis, brain abscess, and epidural abscess, which can occur when infection breaches the skull’s inner table. These complications may present with severe headache, altered consciousness, and neurological deficits.

Lateral sinus thrombosis may develop when an infection triggers blood clotting in the brain’s venous drainage system. This complication can cause severe headaches, high fever, and septic emboli. Facial nerve paralysis may occur when an infection affects the facial nerve as it passes through the temporal bone, potentially leading to facial weakness or paralysis on the affected side.

Hearing loss, ranging from conductive to sensorineural, can develop without treatment. Infection may affect the delicate structures responsible for hearing, including the ossicular chain and inner ear. Labyrinthitis, an inner ear infection, may cause vertigo, hearing loss, and tinnitus. Patients may develop chronic ear drainage and recurring infections, which may require surgical intervention.

This information is provided for educational purposes and should not replace professional medical consultation.

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Frequently Asked Questions (FAQ)

How long does mastoiditis treatment typically take?

Treatment duration varies based on severity and response. Uncomplicated acute mastoiditis may require IV antibiotics followed by oral antibiotics. Surgical cases may need extended antibiotic therapy. Complete healing, including hearing recovery, can take time. Regular follow-up continues to ensure resolution and monitor for recurrence.

Can mastoiditis recur after successful treatment?

Recurrence is uncommon with appropriate treatment but can occur. Risk factors for recurrence include incomplete antibiotic courses, resistant bacteria, underlying immunodeficiency, or persistent middle ear problems. Cholesteatoma presence may increase recurrence risk. Prevention involves completing prescribed antibiotics, treating ear infections promptly, and maintaining regular ENT follow-up.

Is mastoiditis contagious?

Mastoiditis itself is not contagious as it represents a complication of middle ear infection. The bacteria causing the initial ear infection may be transmissible through respiratory droplets. Ear drainage should be handled carefully to prevent the spread of infection to others. Family members don’t require prophylactic treatment unless they develop symptoms of an ear infection.

What’s the difference between mastoiditis and a regular ear infection?

Regular ear infections (otitis media) affect only the middle ear space behind the eardrum. Mastoiditis occurs when an infection spreads into the mastoid bone behind the ear, leading to bone inflammation and potential destruction. Mastoiditis presents with more severe symptoms, including swelling behind the ear, high fever, and possible complications. While ear infections often resolve with oral antibiotics, mastoiditis may require IV antibiotics and possible surgery.

Can adults get mastoiditis, or is it only a childhood condition?

While mastoiditis is more common in children due to their developing immune systems and eustachian tube anatomy, adults can develop this condition. Adult mastoiditis often occurs in those with diabetes, immunosuppression, or chronic ear disease. Adults may present with subtler symptoms, making diagnosis challenging. Treatment principles remain similar across age groups, though adults may tolerate outpatient IV therapy better.

Will I need surgery for mastoiditis?

Not all mastoiditis cases require surgery. Early, uncomplicated cases often respond well to IV antibiotics alone, with surgery reserved for treatment failures or complications. Surgical intervention may be needed when abscess formation, bone destruction, or complications occur. Your ENT specialist may determine the need for surgery based on imaging findings, clinical response, and the presence of complications.

Conclusion

Mastoiditis remains a severe ear infection requiring prompt recognition and appropriate treatment to prevent potentially severe complications. While modern antibiotics have reduced the incidence of this condition in Singapore, it still occurs and requires immediate medical attention. Early diagnosis and treatment by an ENT specialist may help improve outcomes and reduce the risk of hearing loss and other complications.

Understanding the warning signs, particularly persistent ear pain with swelling behind the ear following an ear infection, enables timely medical consultation. With proper treatment, patients may recover without long-term effects. Our approach combines modern diagnostics, evidence-based medical management, and surgical knowledge when needed.

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Living with ear pain and infection can impact your quality of life. Our ENT Specialist has experience diagnosing and treating mastoiditis using evidence-based approaches.

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Dr Gan Eng Cern

Ear, nose and throat specialist

MBBS

MRCS (Edin)

mmed (orl)

FAMS

With over 15 years of experience, Dr Gan specialises in the comprehensive management of a broad range of conditions related to the ear, nose and throat (ENT), and head and neck.

Dr. Gan has contributed to the academic field as a Senior Clinical Lecturer at the Yong Loo Lin School of Medicine, National University of Singapore. He underwent his subspecialty training in Rhinology (Nose & Sinus conditions) and Endoscopic Skull Base Surgery at the renowned St Paul’s Sinus Center, part of the University of British Columbia in Vancouver, Canada. He is recognised for his extensive research work, with numerous contributions to reputable international ENT journals. Dr Gan is also highly sought after as a speaker and has shared his surgical knowledge as a surgical dissection teacher at various prominent ENT conferences and courses.

2020 – Reader’s Choice Gold Award for Best ENT Specialist (Expat Living Singapore)
2016 – Best Educator Award (Eastern Health Alliance)
2016 – “Wow” Award (Patient Compliment)

2014 – Eastern Health Alliance Caring Award – Silver
2014 – 19th Yahya Cohen Memorial Lectureship (awarded by the College of Surgeons, Academy of Medicine Singapore for best scientific surgical paper)
2012 – Human Manpower Development Award (Ministry of Health, Singapore)
2007 – Singhealth Best Doctor Award

Qualifications

MBBS – Bachelor of Science, Bachelor of Medicine, Bachelor of Surgery (University of New South Wales, Sydney, Australia)
MRCS (Edin) – Member of the Royal College of Surgeons Edinburgh, United Kingdom
MMed (ORL) – Master of Medicine in ENT (National University of Singapore)
FAMS – Fellow of the Academy of Medicine Singapore

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