Name of the Procedure:

Laryngoscopy, flexible or rigid telescopic, with stroboscopy

Summary

Laryngoscopy with stroboscopy is a medical procedure that uses a flexible or rigid scope to examine the larynx (voice box) and vocal cords. Stroboscopy involves the use of a strobe light to assess the vibration and function of the vocal cords in slow motion.

Purpose

This procedure is used to diagnose and evaluate conditions affecting the larynx and vocal cords, such as voice disorders, nodules, polyps, or tumors. The goal is to identify any abnormalities, understand the cause of symptoms, and guide treatment plans.

Indications

• Persistent hoarseness or voice changes
• Throat pain without a clear cause
• Trouble swallowing or a sensation of a lump in the throat
• Chronic cough or throat irritation
• Vocal cord lesions or dysfunction
• Preoperative assessment for laryngeal surgery

Preparation

• Patients may need to fast for a few hours before the procedure, especially if sedation or anesthesia will be used.
• Adjustments to medications, particularly blood thinners, may be necessary as instructed by the healthcare provider.
• A thorough throat and laryngeal examination, including imaging and other diagnostic tests, may be performed.

Procedure Description

1. The patient is positioned comfortably in a chair or on an examination table.
2. If needed, local anesthesia or a mild sedative may be administered to alleviate discomfort.
3. A flexible or rigid telescopic scope is gently inserted through the nose or mouth to reach the larynx.
4. The scope is equipped with a light and camera to visualize the larynx and vocal cords.
5. Stroboscopy involves using a strobe light to make the vocal cords appear to move in slow motion, providing a detailed view of their function and vibrations.
6. The entire procedure is recorded or observed on a screen for detailed assessment.

Duration

The procedure typically takes about 10 to 30 minutes.

Setting

Laryngoscopy with stroboscopy is usually performed in an outpatient clinic or a specialized medical center.

Personnel

The procedure is carried out by an otolaryngologist (ENT specialist) with assistance from trained nursing staff. An anesthesiologist may be present if sedation is used.

Risks and Complications

• Mild discomfort or gagging during the procedure
• Temporary sore throat or hoarseness
• Rare risk of bleeding, especially if a biopsy is taken
• Infection
• Adverse reactions to sedation or anesthesia

Benefits

• Accurate diagnosis of vocal cord and laryngeal issues
• Detailed assessment of vocal cord function
• Provides information to guide effective treatment plans
• Usually provides immediate visual results

Recovery

• Patients can typically resume normal activities soon after the procedure.
• Temporary throat discomfort or hoarseness may occur but usually resolves quickly.
• Drinking plenty of fluids and avoiding strenuous voice use may be recommended.
• Follow-up appointments may be scheduled based on findings and treatment plans.

Alternatives

• Direct or indirect laryngoscopy without stroboscopy
• Imaging techniques like MRI or CT scans for structural evaluation
• Voice therapy or other non-invasive treatments based on initial assessment
• Pros and cons vary, with stroboscopy providing more detailed functional evaluation.

Patient Experience

• Patients may feel slight pressure or discomfort during the procedure.
• Local anesthesia helps minimize discomfort, and sedation is used for relaxation if necessary.
• Post-procedure, patients should be comfortable and able to discuss the findings with their healthcare provider shortly after. Pain management may involve simple analgesics if needed.