What is laryngitis?

Laryngitis is a condition characterized by inflammation of the lining of the larynx, causing swelling and irritation of the vocal cords. This condition can be acute or chronic. Acute laryngitis is often short-lived and associated with infections or overuse of the voice, while chronic laryngitis develops due to long-term irritation, such as from smoking or exposure to dust. Symptoms may include hoarseness, sore throat and discomfort when swallowing. To avoid complications, such as damage to the vocal cords or secondary infections, it is essential to make an accurate diagnosis and apply appropriate treatment. For patient safety reasons, it is important to follow medical guidelines to ensure effective relief of symptoms and elimination of potential causes.

Causes of laryngitis

Viral infections

Viral infections are the most common cause of acute laryngitis and are often associated with upper respiratory infections. It is usually caused by:

• Rhinovirus
• Parainfluenza virus
• Adenovirus

These viruses are spread by airborne droplets produced by sneezing or coughing and can spread quickly between people, especially in closed spaces. Viral laryngitis is usually self-limiting and symptoms resolve within days to weeks with adequate rest and fluid intake. In such cases, specific antiviral therapy is not required, and symptomatic treatment is sufficient to relieve discomfort.

Bacterial infections

Bacterial infections such as Streptococcus pyogenes can cause laryngitis, although this is less common. In these cases:

• Symptoms may be more severe, including more severe throat inflammation and increased body temperature.
• The risk of complications, such as the development of peritonsillar abscesses, is greater.

Irritants and lifestyle factors

Various irritants and lifestyle factors can contribute to the development of laryngitis:

• Tobacco smoke: smoking is one of the main risk factors for the development of chronic laryngitis, as it causes constant irritation and inflammation of the larynx.
• Alcohol abuse: alcohol can cause dehydration and irritation of the larynx.
• Polluted air: Exposure to polluted air, such as industrial emissions, can cause inflammation of the lining of the larynx.
• Chemical vapors: working with chemicals without proper protection can cause acute or chronic laryngitis.

Lifestyle factors such as smoking and excessive use of the voice play an important role as they can have long-term effects on the health of the larynx. In chronic laryngitis, it is important to make lifestyle changes to reduce irritation and prevent disease progression.

Allergic reactions and professional vocal load

Less common causes of laryngitis include:

• Allergic reactions: Allergies can cause swelling and inflammation of the larynx, which contributes to laryngitis symptoms such as hoarseness and cough.
• Professional vocal load: persons such as singers, teachers and speakers, who regularly overload the vocal cords, often face chronic laryngitis.

Symptoms of laryngitis

Acute laryngitis

Acute laryngitis usually begins suddenly and is associated with infectious or acute irritant factors. The main symptoms are:

• Hoarseness of voice: hoarseness occurs due to swelling of the lining of the larynx, which affects the vibration of the vocal cords.
• Sore throat: inflammation may cause pain and discomfort in the neck area.
• Dry cough: Cough may be due to irritation of the larynx and accumulation of mucus caused by inflammation.
• Fever (sometimes): In case of infection, an elevated body temperature may be observed.

The lining of the larynx becomes swollen, resulting in a narrowing of the larynx, causing hoarseness. Symptoms of acute laryngitis usually subside within a few days if adequate vocal rest and hydration are provided.

Chronic laryngitis

Chronic laryngitis develops when symptoms persist for more than three weeks. Common symptoms include:

• Prolonged hoarseness: Persistent hoarseness may be due to chronic irritation and inflammation of the larynx.
• Feeling that something is stuck in the throat: this sensation may be due to the accumulation of mucus in the larynx.
• Prolonged cough: Cough may be chronic and associated with persistent irritation of the larynx.
• Sore throat (sometimes): pain in the neck can be long-lasting and associated with chronic inflammation.

This condition is often caused by long-term irritation, such as from smoking or gastroesophageal reflux disease. Treatment of chronic laryngitis usually requires long-term lifestyle changes and sometimes medical intervention.

Diagnosis of laryngitis

Medical history and physical examination

Diagnosing laryngitis requires a thorough examination of the patient's medical history and physical examination:

• Medical history: the doctor evaluates the duration of the symptoms, their intensity and possible triggers. The patient's lifestyle, such as smoking habits and occupational risks, are asked.
• Physical examination: the doctor evaluates the neck and larynx regions using palpation and visual inspection to determine the degree of inflammation and other abnormalities.

These tests help rule out other similar pathologies, such as laryngeal cancer, which may present with similar symptoms.

Additional examinations

Additional examinations may be necessary to thoroughly evaluate the larynx and detect inflammatory or structural changes:

• Laryngoscopy: this procedure allows visualization of the inside of the larynx using a flexible or rigid endoscope. It helps identify the extent of inflammation and structural changes such as nodules or polyps.
• Voice analysis (phonation test): this test helps evaluate voice function by determining how well the vocal cords vibrate and what quality of sound they produce.
• Biopsy: in rare cases, if a malignant process is suspected, a biopsy of the larynx tissue is performed.
• Radiological examinations: are performed to rule out other pathologies, such as tumors, that may affect the structure of the larynx.

Treatment of laryngitis

Treatment at home

Treatment of laryngitis at home includes simple measures that help reduce symptoms and prevent damage to the laryngeal ligament:

• Voice relaxation: it is important to avoid excessive talking and singing to reduce tension and inflammation of the vocal cords.
• Adequate hydration: fluid intake helps thin mucus and helps reduce inflammation. Hot drinks such as herbal tea can provide additional relief.
• Avoidance of irritants: should avoid tobacco smoke, dry and dusty rooms, as well as other irritants that can worsen the symptoms.
• Using steam inhalation or a humidifier: Inhaling steam or using a humidifier can help relieve throat dryness and irritation.
• Avoiding excessive vocal strain: to prevent further damage to the larynx, it is important to follow the principles of vocal hygiene, such as not speaking too loudly or for long periods of time.

Professional medical assistance

Severe or prolonged cases of laryngitis require professional medical assistance. Such cases may require:

• Consultation of an otolaryngologist: specialist consultation is necessary to make an accurate diagnosis and develop an individual treatment plan.
• Specialized treatment: Voice therapy can be helpful in improving voice function and teaching the patient proper speaking techniques. Surgical intervention may be necessary if polyps or nodules are found on the vocal cords that do not improve with conservative treatment.

Medical help is essential to ensure adequate treatment and avoid complications such as airway obstruction or chronic voice problems. Timely consultation of a specialist can help clarify the diagnosis and determine the optimal treatment strategy.

Prevention and lifestyle changes

Preventive measures

Preventive measures are essential to reduce the risk of developing laryngitis and promote laryngeal health:

• Avoiding smoking and passive smoking: stopping smoking is one of the most effective ways to reduce the risk of developing chronic laryngitis. Passive smoking can also be harmful, so it is important to avoid smoke.
• Regular rest breaks: especially if work or hobbies require intensive use of the voice, regular rest breaks are essential to prevent overloading of the vocal cords.
• Hand hygiene: Regular hand washing and hand hygiene are important to reduce the risk of spreading viral infections that can cause acute laryngitis.

Lifestyle recommendations

To prevent the development of chronic laryngitis, lifestyle changes are recommended that can reduce laryngeal irritation and promote overall health:

• Dietary adjustment: Avoid spicy and fatty foods and reduce portion sizes to reduce the risk of acid reflux.
• Reduced consumption of alcohol and caffeine: alcohol and caffeine can cause irritation of the larynx, so their consumption should be reduced.
• Regular physical activity and stress management: Exercise and stress management techniques such as yoga or meditation can help improve overall health and reduce symptoms of chronic laryngitis.

Voice hygiene

Vocal hygiene is an important aspect in the prevention and treatment of laryngitis and includes several principles that help maintain the health of the larynx:

• Avoiding congestion of voice links: Avoiding talking too loudly or for long periods of time is essential to reduce strain and irritation on the vocal cords.
• Voice therapists can give advice: Voice therapists can provide advice on proper speaking techniques and exercises to help improve voice function and prevent damage to the vocal cords.
• Staying in a humid environment: Staying in a humid environment and avoiding dry and dusty rooms can help reduce laryngeal irritation and prevent laryngitis symptoms.

Conclusions

Laryngitis is a common condition that can be both short-term and long-term. Understanding its causes, symptoms and treatment options is important to ensure effective management and avoid complications. Prevention and lifestyle changes can significantly reduce the risk of developing laryngitis and promote a healthy larynx. Patients should be informed about symptoms and treatment options in order to seek medical help in time and ensure adequate treatment. Understanding vocal hygiene and lifestyle adjustments can help maintain optimal laryngeal health and reduce the risk of recurrent episodes of laryngitis.

Warning signs that require immediate medical intervention include difficulty breathing and rapid worsening of symptoms. Patients should exercise caution and consult a healthcare professional if the following symptoms occur. Timely medical assistance is essential to ensure adequate treatment and avoid serious consequences.