A diagnostic procedure in which the larynx and vocal cords are visualized with a special mirror or with flexible/rigid endoscopes in cases of hoarseness, swallowing difficulty, and other throat complaints.
Indication
- Hoarseness lasting longer than 2-3 weeks
- Persistent foreign body sensation in the throat (globus) or swallowing difficulty
- Suspicion of laryngeal cancer in the setting of smoking and alcohol use
- Recurrent throat clearing, chronic cough, or chronic laryngopharyngeal reflux
- Voice changes in vocal professionals (teachers, singers)
- Suspected aspiration during swallowing (especially in neurological patients) — fiberoptic evaluation
- Follow-up of known laryngeal lesions (polyp, nodule, leukoplakia)
Preparation
- Indirect and fiberoptic laryngoscopy require no special preparation; topical spray anesthesia is applied during the examination
- For direct laryngoscopy (under general anesthesia), fasting for 6-8 hours is required
- Use of blood thinners must be shared with the physician before the procedure
- Existing heart and lung conditions and allergies must be reported
- Routine blood tests and an ECG when needed are requested before direct laryngoscopy
How it's performed
- Indirect laryngoscopy: with the patient seated, light is directed onto a small mirror to examine the larynx via mirror reflection; a quick, classic outpatient method
- Fiberoptic laryngoscopy: a thin flexible endoscope is passed through the nose to view the larynx in real time; the vocal cords can be assessed during speech and swallowing
- Direct laryngoscopy: in the operating room and under general anesthesia, the larynx is examined directly with a rigid metal laryngoscope; biopsy and microsurgery (microlaryngoscopy) can be performed when needed
- Topical anesthetic spray is applied to the throat before the procedure when needed
- Biopsy may be taken from suspicious areas, or nodules and polyps may be surgically removed
- Images are recorded and serve as a reference for follow-up
Post-procedure
- Patients usually return to normal life on the same day after indirect and fiberoptic laryngoscopy
- After direct laryngoscopy, observation lasts a few hours to one day; discharge is on the same or next day
- If a biopsy or microsurgery is performed, voice rest of 5-7 days may be recommended
- Mild throat irritation, pain, or swallowing discomfort may last 1-3 days
- A follow-up and treatment plan is prepared based on pathology results or findings
Risks
- Transient throat pain, hoarseness, or swallowing difficulty
- Mild bruising of the teeth or lips (especially with direct laryngoscopy)
- Nasal bleeding (rare with fiberoptic insertion)
- Laryngeal edema and rare respiratory distress (especially in children or with difficult intubation)
- Anesthesia reactions (with direct laryngoscopy)
- Very rare arrhythmia or laryngospasm
FAQ
Which type of laryngoscopy will be performed on me?
In most cases, indirect or fiberoptic laryngoscopy in the outpatient clinic is preferred first and is often sufficient for diagnostic evaluation. If a suspicious mass, biopsy, or surgery for nodules/polyps is planned, direct laryngoscopy (microlaryngoscopy) in the operating room is preferred.
Is the procedure painful, and will I gag?
A short-lived gag reflex may occur during indirect laryngoscopy; topical spray largely reduces this sensation. With the fiberoptic method, the gag reflex is minimal because the nasal route is used. During direct laryngoscopy, no pain is felt because the patient is under general anesthesia.
When will my hoarseness improve?
Once the cause of hoarseness is identified, an appropriate treatment (voice rest, voice therapy, reflux treatment, surgery) is planned. Improvement may be expected within days to a few months depending on the cause and treatment.
Can I eat or drink after the procedure?
After topical anesthetic spray, eating and drinking are not recommended for 1-2 hours because the swallowing reflex is reduced. After direct laryngoscopy under general anesthesia, oral intake is gradually started with liquids when the team approves.
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