Stapedectomy Surgery Diagnosis and Tests

Explore how specialists at Liv Hospital diagnose middle ear conditions. Learn about advanced hearing tests and imaging scans for stapedectomy planning safely.

Diagnosis and Tests for Stapedectomy Surgery

Accurate diagnosis and tests are the foundation of successful stapedectomy surgery, a procedure that restores hearing by correcting otosclerosis in the middle ear. International patients traveling to Istanbul for this specialized care need clear information about what evaluations will be performed before the operation. In this guide we explain the step‑by‑step diagnostic pathway, the technology used, and how results shape the surgical plan. Understanding each test helps patients feel confident, reduces uncertainty, and ensures optimal outcomes.

Stapedectomy is a delicate microsurgical technique performed by ENT specialists with extensive experience in hearing restoration. Because the middle ear structures are tiny and the stakes are high, Liv Hospital follows a comprehensive protocol that combines clinical examination, advanced imaging, precise audiometric measurements, and essential laboratory screening. The following sections detail each component, the reasons they are required, and what patients can expect during their pre‑operative visit.

Understanding Stapedectomy: When Diagnosis Is Needed

Stapedectomy is indicated primarily for patients with otosclerosis—a bone remodeling disorder that immobilizes the stapes footplate, leading to conductive hearing loss. The decision to operate begins with a thorough diagnostic assessment that confirms the presence of otosclerotic fixation and excludes other causes of hearing impairment.

Key elements of the diagnostic work‑up include:

• Detailed medical history focusing on gradual hearing loss, tinnitus, and family history.
• Physical otoscopic examination to rule out external or middle‑ear infections.
• Baseline audiometry to quantify the type and degree of hearing loss.

Only after these initial steps does the ENT team proceed to more specialized investigations. This staged approach minimizes unnecessary testing, reduces patient burden, and ensures that surgery is truly indicated.

At Liv Hospital, the diagnostic protocol aligns with international guidelines and JCI standards, guaranteeing that each patient receives evidence‑based care before any surgical intervention.

Common Symptoms That Prompt Diagnostic Evaluation

Patients typically seek evaluation when they notice specific auditory changes. Recognizing these symptoms early can lead to timely diagnosis and tests that preserve hearing function.

Typical presenting complaints include:

• Gradual, painless loss of low‑frequency hearing in one ear.
• Persistent ringing or buzzing (tinnitus) that may worsen at night.
• Feeling of fullness or pressure in the affected ear.
• Difficulty understanding speech, especially in noisy environments.

In some cases, a patient may also experience a “Carhart notch” on audiometric testing—a specific dip in bone‑conduction thresholds that strongly suggests otosclerosis. When these signs appear, the ENT specialist schedules a series of diagnostic procedures to confirm the diagnosis.

Early identification is crucial because otosclerosis can progress, and delaying surgery may lead to irreversible sensorineural damage. Liv Hospital’s multidisciplinary team emphasizes prompt assessment to maintain the best possible hearing outcomes.

Imaging Techniques Used in Stapedectomy Assessment

High‑resolution imaging provides a visual confirmation of otosclerotic lesions and helps surgeons plan the operative approach. The most commonly employed modalities are:

CT scanning is the gold standard because it visualizes the tiny ossicular chain and any calcified lesions that may impede prosthesis placement. The scan is performed with the patient in a supine position, and the radiation dose is kept as low as possible while preserving diagnostic quality.

In complex cases—such as when a patient reports vertigo or facial nerve symptoms—MRI may be added to rule out alternative diagnoses. All imaging is reviewed by a board‑certified radiologist and the ENT surgeon to ensure a shared understanding of the anatomy.

Audiometric Tests and Hearing Evaluation

Pure‑tone audiometry remains the cornerstone of hearing assessment for otosclerosis. The test measures air‑ and bone‑conduction thresholds across frequencies, allowing clinicians to distinguish between conductive and sensorineural loss.

Typical audiometric findings in otosclerosis include:

• Elevated air‑conduction thresholds, especially at 500 Hz and 1 kHz.
• Normal bone‑conduction thresholds with a characteristic “Carhart notch” at 2 kHz.
• Improvement in bone‑conduction thresholds after successful stapedectomy.

Additional hearing tests may be ordered:

• Speech audiometry to assess word recognition scores.
• Immittance testing (tympanometry and acoustic reflexes) to evaluate middle‑ear mobility.
• Otoacoustic emissions (OAEs) to verify outer‑hair‑cell function.

All results are plotted on an audiogram, which the surgeon uses to predict postoperative hearing gain. At Liv Hospital, audiometric testing is performed in a sound‑treated booth by certified audiologists, ensuring reproducible and accurate data.

Laboratory and Pre‑operative Screening

Beyond ear‑specific assessments, a set of laboratory tests is required to confirm that the patient is fit for surgery and to identify any underlying conditions that could affect healing.

Standard pre‑operative labs include:

• Complete blood count (CBC) – checks for anemia or infection.
• Coagulation profile (PT/INR, aPTT) – ensures normal clotting function.
• Serum electrolytes and renal function – important for anesthesia safety.
• Blood type and screen – prepares for possible transfusion, though rarely needed.

For patients with a history of autoimmune disease or chronic inflammation, additional markers such as C‑reactive protein (CRP) or antinuclear antibodies (ANA) may be ordered. A thorough medication review is also conducted to discontinue anticoagulants or antiplatelet agents as advised by the anesthesiology team.

Liv Hospital’s international patient service coordinates these labs with local providers when patients prefer to have tests done in their home country. Results are uploaded securely to the hospital’s electronic health record, allowing the surgical team to review them before the day of the operation.

Interpreting Test Results and Planning Surgery

Once all diagnosis and tests are completed, the ENT surgeon synthesizes the data to formulate a personalized surgical plan. The key decision points include:

• Confirmation of otosclerotic fixation versus alternative pathology.
• Assessment of middle‑ear anatomy from CT to choose the appropriate prosthesis size.
• Evaluation of hearing thresholds to set realistic postoperative expectations.
• Medical fitness based on laboratory results and anesthesia clearance.

During a pre‑operative consultation, the surgeon reviews the audiogram, imaging, and lab findings with the patient. Visual aids such as 3‑D reconstructions of the temporal bone may be shown to explain the surgical steps. The patient also receives detailed instructions on fasting, medication adjustments, and postoperative care.

In cases where the test results reveal contraindications—such as severe sensorineural loss or active infection—the surgeon may recommend alternative treatments, including hearing aids or medical management, before reconsidering surgery. This transparent, data‑driven approach ensures that every patient undergoes stapedectomy only when the benefits outweigh the risks.

Why Choose Liv Hospital?

Liv Hospital combines JCI accreditation with a dedicated International Patient Services team, offering a seamless experience from diagnosis to recovery. Our ENT department features surgeons who perform hundreds of stapedectomies annually, utilizing state of the art microscopes and micro‑instruments. International patients benefit from coordinated travel logistics, interpreter assistance, and comfortable accommodation options, all designed to minimize stress and focus on health outcomes.