Video Laryngoscopy: Uses, Procedure, Risks and FAQs

Video Laryngoscopy: What it is, when it helps, and FAQs

Video laryngoscopy is an endoscopic examination of your voice box (larynx) using a thin camera that shows a magnified view on a screen. It helps diagnose hoarseness, throat discomfort, swallowing issues, chronic cough, airway narrowing and many other laryngeal problems. This guide explains when it is recommended, how it is performed, what you may feel, possible risks, aftercare and answers to common questions. If your symptoms are severe or getting worse quickly, please seek medical help promptly.

What is video laryngoscopy?

In ENT clinics, “video laryngoscopy” generally refers to looking at the larynx with a small camera (endoscope) while the image appears on a monitor. There are two common clinic techniques:

• Flexible video laryngoscopy (nasoendoscopy): A thin, flexible scope is passed gently through the nose to view the nose, throat and vocal cords. A numbing spray is usually used.
• Rigid video laryngoscopy: A straight, rigid scope is placed in the mouth to view the voice box. This gives a very clear image and is often used when a detailed look at the vocal cords is needed.

In the operation theatre, “videolaryngoscope” can also mean a special device anaesthetists use to insert a breathing tube during surgery, especially in difficult airways. Your doctor will clarify which type is planned for you. This article focuses on the outpatient ENT examination.

When is video laryngoscopy recommended?

Your ENT specialist may suggest video laryngoscopy if you have:

• Hoarseness or voice changes lasting more than a few weeks
• Frequent throat clearing, chronic cough or a sensation of a lump in the throat
• Throat pain or discomfort without a clear cause
• Swallowing difficulty or choking episodes
• Breathing noise (stridor), suspected airway narrowing or vocal cord weakness
• Reflux-related throat symptoms
• Follow-up after throat or voice surgery, or to monitor known lesions (for example, nodules, polyps)
• Professional voice assessment (singers, teachers, call-centre staff)

Urgent assessment is sensible if you have severe breathing difficulty, drooling with inability to swallow, noisy breathing at rest, or if your voice change is rapidly worsening with shortness of breath.

How should I prepare?

• Eating and drinking: For routine flexible laryngoscopy, you can usually eat and drink normally. If a different plan is needed, your doctor will advise you.
• Medicines: Continue your regular prescriptions unless your ENT or anaesthetist advises otherwise. Do not start, stop or change medicines on your own.
• Allergies and health conditions: Inform your doctor about medication allergies, bleeding tendencies, heart or lung conditions, and if you are pregnant.
• Infection control: Let the clinic know if you have a current cold, fever or active nosebleed. The exam can often be safely done later if you are unwell.
• Bring any previous reports: Voice therapy notes, imaging, or earlier endoscopy videos are helpful for comparison.

What happens during the procedure?

Video laryngoscopy is typically done in the outpatient clinic:

• You will be seated. A consent process and brief explanation are provided.
• A nasal decongestant may be applied inside the nose to make the passage more comfortable. A local anaesthetic may be applied to the nose and/or throat as appropriate to reduce discomfort and gagging.
• Flexible scope: The slim camera is passed through one nostril. You will breathe normally while the doctor examines the nasal passages, back of the throat and then the larynx. You may be asked to say certain sounds or breathe in specific ways so the vocal cords can be seen moving.
• Rigid scope: A straight scope is gently placed on the tongue, and you breathe quietly while the doctor obtains a clear view of the voice box.
• The live image appears on a monitor and can often be recorded for your medical record.

The examination itself usually takes only a short time, although your overall visit may be longer for discussion and planning.

Is it painful? What will I feel?

Most people describe the procedure as slightly uncomfortable rather than painful. Common sensations include:

• A cool, bitter taste from the numbing spray
• A temporary urge to sneeze, cough or gag
• Mild watery eyes or a feeling of pressure in the nose

These sensations usually settle quickly after the scope is removed.

What can video laryngoscopy detect?

Depending on your symptoms, the examination may show:

• Inflammation or infection (laryngitis)
• Benign vocal cord lesions such as nodules, polyps or cysts
• Vocal cord weakness or paralysis
• Structural changes, scarring, or early suspicious lesions
• Signs of laryngopharyngeal reflux
• Airway narrowing above or at the vocal cords

Sometimes additional tests are advised, such as voice analysis, stroboscopy (to study vocal cord vibration), imaging (CT/MRI) or a biopsy. Your doctor will discuss the next steps based on the findings and your goals.

Risks, side effects and safety

Video laryngoscopy is a commonly performed and generally safe procedure. Possible issues include:

• Brief nosebleed, sneezing or watery eyes
• Mild throat irritation, cough or hoarseness for a short period
• Gagging or a vasovagal fainting tendency in sensitive individuals
• Allergic reaction to numbing spray (uncommon)

Instruments are cleaned and high‑level disinfected or sterilised according to established protocols and guidelines to minimise infection risk. Flexible endoscopes used in clinic are typically high‑level disinfected between patients. Serious complications are uncommon in routine clinic examinations, but each person is different. If you have a bleeding disorder, severe heart or lung disease, or known airway narrowing, your doctor will plan the safest approach for you.

Aftercare: what to do once you leave

• Your mouth and throat may feel numb for a short time. Avoid very hot drinks or large bites until normal sensation returns.
• A small amount of blood-tinged mucus from the nose can occur; it usually settles with gentle pressure and rest.
• Seek urgent medical attention if you develop persistent or heavy bleeding, severe breathing difficulty, chest pain, or fever that concerns you.
• Follow the advice given for voice rest, hydration and any further tests or therapy. Do not self-start antibiotics, steroids or other prescription medicines.

Alternatives and related tests

• Mirror examination: A quick, simple look at the larynx with a small mirror; less detailed than video endoscopy.
• Stroboscopy: A special light with either a flexible or rigid scope to evaluate vibration of the vocal cords; often used for singers or complex voice issues.
• Imaging (CT/MRI/ultrasound): Helpful for deeper neck structures, cartilage, glands or when a mass is suspected.
• Swallow studies: For detailed assessment of swallowing if aspiration or dysphagia is a concern.

Your ENT will recommend the most suitable option based on your symptoms, examination and medical history.

Special situations

• Children: Flexible laryngoscopy is often well tolerated in children with gentle technique and reassurance. In some cases, a short-acting sedative may be considered in a hospital setting.
• Voice professionals: Detailed visualisation and, when needed, stroboscopy can guide targeted voice therapy and safe return-to-voice planning.
• Pregnancy: If examination is needed during pregnancy, your doctor will weigh benefits and risks and choose the safest approach. Local anaesthetics and decongestants are used cautiously when appropriate.

Video laryngoscopy in Thane

At our ENT clinic in Thane, video laryngoscopy is used to evaluate voice and throat concerns in a careful, patient-centred manner. Dr. Lokesh Bhama (MBBS, DLO), ENT Specialist & Endoscopic ENT Surgeon, will discuss whether this examination is right for you and explain the findings in simple terms. If you are experiencing persistent hoarseness, throat discomfort, swallowing problems or noisy breathing, consider scheduling an assessment.

FAQs

Will I need someone to accompany me?

Most patients can come alone for a routine clinic laryngoscopy. If you feel anxious, have mobility issues, or are advised that sedation may be used, it is sensible to have a responsible adult with you.

Can I eat or drink after the test?

Yes, once the numbness wears off. Avoid very hot liquids or large bites until your throat feels normal to reduce the risk of choking or burns.

Will the test affect my voice?

You might notice mild hoarseness or throat irritation for a short time. This usually settles. If your voice feels worse for longer, inform your ENT specialist.

Is video laryngoscopy different from stroboscopy?

Yes. Video laryngoscopy shows the structure and movement of the vocal cords in real time. Stroboscopy adds a special light to study the vibratory pattern in more detail, particularly for voice professionals or complex lesions.

Is it safe if I have high blood pressure, diabetes or asthma?

These conditions are common and many patients undergo laryngoscopy safely. Please share your full medical history and medicines so the team can plan appropriately.

When will I get my results?

Your doctor will usually discuss the findings immediately after the examination. If additional tests, voice assessments or a biopsy are needed, results and next steps will be explained.

If you have urgent red-flag symptoms like severe breathing difficulty, rapidly worsening noisy breathing, or inability to swallow saliva, please seek emergency care without delay.

To discuss whether video laryngoscopy is suitable for you, you may book an appointment with Dr. Lokesh Bhama in Thane. Our team will guide you on preparation, the procedure and follow-up care.