What is Sudden Deafness (SSHL) and Its Symptoms?
Sudden sensorineural hearing loss (SSHL), commonly known as sudden deafness, is an unexplained, rapid drop in hearing capability. It usually affects just one ear and can occur instantly or develop over a period of up to 72 hours. Patients often report waking up with a notable drop in hearing or noticing a sudden muffled sound while using a phone. SSHL is a medical emergency that requires prompt evaluation by an ENT (Ear, Nose & Throat) specialist.
Alongside rapid hearing loss, common symptoms include a feeling of fullness or pressure in the affected ear, persistent tinnitus (ringing, buzzing, or hissing sounds), and episodes of dizziness or vertigo. The underlying cause often involves microvascular impairment of the inner ear, viral infections affecting the cochlear nerve, or autoimmune reactions. Because inner ear hair cells deteriorate quickly when deprived of adequate blood flow or oxygen, early medical intervention is crucial to improve the chances of hearing recovery.
How SSHL is Diagnosed in Turkey
When seeking care at an international department in Turkey, your diagnostic assessment begins with a thorough clinical examination to rule out conductive causes, such as impacted earwax or fluid accumulation behind the eardrum. Diagnostic tests typically performed include:
- Pure Tone Audiometry: Measures hearing thresholds across various frequencies. SSHL is clinically diagnosed when there is a hearing loss of at least 30 decibels across three consecutive frequencies within 72 hours.
- Tympanometry: Evaluates middle ear function and mobility to ensure the middle ear is clear of fluid or structural pressure.
- Speech Audiometry: Assesses speech discrimination capabilities to evaluate how clearly words are processed in the affected ear.
- Magnetic Resonance Imaging (MRI): A brain and auditory pathway scan used to exclude structural issues such as acoustic neuromas (vestibular schwannomas) or other neurological abnormalities.
If you are travelling from abroad, bring all recent audiograms, medical notes detailing the onset of symptoms, and documentation of any treatments already initiated, such as oral steroid courses.
Treatment Options for Sudden Deafness
Clinical management of SSHL focuses on reducing inner ear inflammation and restoration of microvascular circulation. Treatment plans are determined by the treating physician after reviewing diagnostic findings, taking into account how quickly care is initiated after the onset of symptoms.
| Option | Typically Used When | Things to Know |
|---|
| Systemic Corticosteroids | First-line treatment within 2 to 4 weeks of symptom onset | Administered orally or intravenously; helps reduce inner ear swelling and inflammation. |
|---|
| Intratympanic Steroid Injections | As primary therapy or salvage treatment if oral steroids fail | Steroid fluid is injected directly through the eardrum into the middle ear space. |
|---|
| Hyperbaric Oxygen Therapy (HBOT) | Adjunctive therapy within the first 14 to 30 days | Increases oxygen concentration in inner ear fluids; usually combined with steroids. |
|---|
| Vasodilators / Rheological Agents | Selected cases with suspected vascular insufficiency | Aims to enhance blood flow to the delicate microvasculature of the inner ear. |
|---|
In cases where hearing loss remains permanent despite intervention, secondary rehabilitation may involve hearing assistance devices or specialized care, coordinated alongside Rehabilitation services, or comprehensive evaluations in Check-ups & Diagnostics.
Planning Treatment in Turkey
Time is the most critical factor when planning travel for SSHL. Patients should send their medical history and local audiometry results for remote medical review before booking travel. If local doctors suspect neurological or vascular involvement, co-consultations involving Neurosurgery or systemic evaluations via Endocrinology may be advised prior to departure.
International travel for SSHL typically requires a stay of 7 to 10 days in Turkey. This window allows for a full diagnostic battery, administration of intratympanic injection series (often given every few days), and initial progress audiograms. Upon returning home, you must maintain ongoing follow-up with a local ENT specialist to track long-term hearing recovery and continue any tapered medication regimens safely.
When Travel is Not Advisable and Urgent Warning Signs
Travelling long distances or flying is not recommended if you are experiencing severe, acute vertigo, active vomiting, or neurological deficits such as facial numbness, weakness, or slurred speech. Flying with acute pressure changes can also cause discomfort if middle ear inflation is compromised.
Seek immediate emergency care at your nearest local hospital if your hearing loss is accompanied by sudden onset of severe headache, visual disturbances, weakness in any limb, or confusion. These symptoms may indicate an urgent cerebrovascular event or central nervous system issue rather than isolated inner ear dysfunction.
