Turbinate hypertrophy

Overview:

Nasal turbinate hypertrophy refers to a condition where the nasal turbinate structures become enlarged and obstruct the nasal passage. Nasal turbinate structures are large, curved, bony structures lined with soft tissue and mucous membrane. Their purpose is to filter, humidify, and warm air entering the nostrils prior to it reaching the lungs. When the nasal turbinate structures become enlarged or swollen, the available space for airflow is diminished, leading to chronic nasal congestion, difficulty breathing through the nose, and other symptoms that can negatively impact comfort and quality of sleep. Turbinate hypertrophy is commonly developed secondary to prolonged inflammation in the nasal passages, most often resulting from allergy-related inflammation or environmental irritants.

There are many individuals who have mild turbinate enlargement with no apparent symptoms. However, when turbinate hypertrophy becomes severe enough to diminish nasal airflow, breathing through the nose may be difficult, especially during rest and/or physical exertion.

Treatment for turbinate hypertrophy varies based on the level of symptomatology. Mild levels of turbinate hypertrophy can be treated with nasal anti-inflammatory medications to decrease swelling in the nasal turbinate tissue. When turbinate hypertrophy is severe enough to warrant treatment beyond anti-inflammatory medications, minimally invasive procedures may be necessary to reduce the size of the nasal turbinate tissue to preserve its function.

What Is Turbinate Hypertrophy?

Turbinate hypertrophy is an abnormal enlargement of the nasal turbinate structures. 

There are three sets of turbinate structures within each nasal cavity: superior, middle, and inferior. Each set of turbinate structures plays a crucial role in regulating airflow through the nasal cavities and conditioning (humidifying) the air that enters the respiratory system. The inferior turbinate structures are the largest and most frequently involved in turbinate hypertrophy. They contain extensive networks of blood vessels and soft tissue that may expand or contract depending on the environment.

Generally speaking, the turbinate structures help to maintain the moisture content of the nasal cavity and capture foreign particles such as dust, allergens, and bacteria. This is beneficial to both the protection of the lungs and the maintenance of healthy breathing. When the nasal lining surrounding the turbinate structures becomes chronically inflamed, the soft tissue within the turbinate structures may become swollen and enlarged. The swelling may be persistent and reduce the space available for air to pass through the nasal passages, making breathing through the nose more difficult for individuals suffering from turbinate hypertrophy.

Causes of Turbinate Hypertrophy

Turbinate hypertrophy is most frequently the direct result of long-term inflammation of the nasal lining. Multiple factors may contribute to the inflammation of the nasal lining. Long-standing nasal allergies represent one of the most common contributors to inflammation of the nasal lining. Recurring nasal inflammation associated with allergies can cause the turbinate soft tissue to become chronically swollen.

Repeated irritation of the nasal passages can also lead to turbinate enlargement. Irritants that may exacerbate chronic nasal inflammation include smoking cigarettes, air pollution, chemical fumes, and environmental irritants. Strong odors, chemicals, and pollutants may also irritate the nasal lining and increase swelling of the turbinate soft tissue.

Additionally, chronic nasal congestion may exacerbate the condition of turbinate hypertrophy. Prolonged nasal congestion can cause the nasal tissues to remain swollen for an extended period of time and contribute to the development of hypertrophy of the turbinate structures.

Structural issues in the nasal cavity, such as a deviated septum, may also contribute to the development of turbinate hypertrophy. When the nasal septum is misaligned, one turbinate may become enlarged to compensate for the decreased airflow on the opposite side of the nasal cavity.

Types of Turbinate Hypertrophy

Depending on the cause, the type of turbinate that is affected may vary. Inferior turbinate hypertrophy, middle turbinate hypertrophy, and compensatory turbinate hypertrophy are the most common forms of turbinate hypertrophy. 

• Inferior turbinate hypertrophy is the most common diagnosis and represents approximately 90% of all diagnoses of turbinate hypertrophy. The inferior turbinate regulates the majority of the airflow in the nasal cavity. When the inferior turbinate becomes enlarged, it can significantly narrow the nasal passages and produce chronic nasal blockage.
• Middle turbinate hypertrophy is less common than inferior turbinate hypertrophy and may occur in patients with sinusitis or chronic nasal inflammation. Middle turbinate hypertrophy can potentially compromise sinus drainage.
• Compensatory turbinate hypertrophy develops when one turbinate becomes enlarged in response to structural anomalies in the nasal cavity. An example of this would be if one side of the nasal septum were displaced, reducing the available space in that side of the nasal cavity. The turbinate on the opposite side of the nasal cavity could then become enlarged to compensate for the decreased airflow on the side of the nasal cavity with the displacement.

Identifying which turbinate is affected is critical in determining the best course of treatment.

Risk Factors of Turbinate Hypertrophy

Multiple risk factors may contribute to the development of turbinate hypertrophy. These risk factors are typically associated with chronic irritation and inflammation of the nasal tissues.

• Long-standing nasal allergies are a major risk factor for developing turbinate hypertrophy. Patients with recurring nasal allergic reactions may experience prolonged inflammation in the nasal lining, potentially leading to the development of turbinate enlargement.
• Exposure to various environmental pollutants is another potential contributor to the development of turbinate hypertrophy. Air pollution, cigarette smoke, and chemical irritants may increase inflammation of the nasal mucosa.
• Prolonged nasal congestion is another risk factor for developing turbinate hypertrophy. Chronic nasal congestion may cause nasal tissues to remain swollen for an extended period of time, potentially leading to turbinate enlargement.
• Sinus infections may also be a contributing factor to the development of turbinate hypertrophy. Sinus infections may generate localized inflammation in the nasal cavity, which may affect the size of the turbinate structures.

Signs & Symptoms of Turbinate Hypertrophy

The signs and symptoms of turbinate hypertrophy are primarily related to the obstruction of the nasal passages. The extent of the symptoms experienced will depend on the degree of turbinate enlargement.

• The most common symptom is chronic nasal congestion. Individuals experiencing turbinate hypertrophy may feel as though their nose is consistently clogged, regardless of whether they have a cold or not.
• Difficulty breathing through the nose is another very common symptom. Many patients with turbinate hypertrophy rely on oral breathing, especially during sleep or physical activity. Breathing through the nose may cause snoring or disrupt sleep patterns in addition to causing difficulty breathing. Additionally, the reduction in nasal airflow can lead to noisy breathing during sleep.

Some patients may experience additional symptoms, such as reduced nasal airflow, persistent nasal congestion, and a sensation of pressure in the nasal cavity. If the symptoms experienced are prolonged or interfere with daily activities or sleep, a medical evaluation should be pursued.

How Is Turbinate Hypertrophy Diagnosed?

Evaluation of turbinate hypertrophy begins with a medical consultation and examination of the nasal cavity. The physician will assess the patient's symptoms and inquire about any history of breathing difficulties, allergies, or previous nasal problems.

Upon completion of the medical consultation and assessment of the nasal cavity, the physician will inspect the nasal cavity to assess whether the turbinate structures are swollen or enlarged. If the turbinate structures are determined to be contributing to nasal obstruction, the physician will consider the degree of turbinate enlargement and the presence of any other anatomical abnormalities.

A nasal endoscopy may be considered if a more detailed view of the nasal cavity is needed. During a nasal endoscopy, a thin, flexible instrument containing a small camera is inserted into the patient's nostril. The endoscope allows the physician to visually inspect the nasal passages in greater detail.

Imaging studies, such as CT scans, may be ordered to evaluate the nasal cavity and determine if there are other reasons for nasal obstruction.

Based upon the findings from these evaluations, the physician will use them to determine the degree of turbinate hypertrophy and recommend the most suitable treatment options.

Treatment Options for Turbinate Hypertrophy in Dubai

Treatment for turbinate hypertrophy depends on the degree of symptoms experienced and the underlying cause. Many patients respond well to medical management and do not need surgical intervention. Medical management typically includes medications to reduce inflammation and alleviate nasal congestion. Commonly used medications include nasal sprays and medications designed to manage allergies.

Managing allergies is essential to treating turbinate hypertrophy when allergic rhinitis is a contributing factor to turbinate enlargement. Reducing exposure to allergens can minimize the inflammation of the nasal lining and potentially reduce the size of the turbinate structures.

If symptoms persist despite medical therapy, turbinate reduction procedures may be recommended. Turbine reduction procedures are minimally invasive and are intended to reduce the size of the turbinate structures while preserving their function in filtering and humidifying the air that enters the nostrils.

Turbinate reduction procedures are performed by ENT specialists. The ultimate goal of turbinate reduction procedures is to improve airflow through the nasal passages and allow patients to breathe comfortably through their noses.

Recovery After Turbinate Surgery

Postoperative recovery from turbinate reduction procedures is typically uneventful. Most patients begin to notice an improvement in nasal airflow as the swelling within the nasal cavity subsides.

Temporary swelling, mild congestion, and/or slight post-operative discomfort may be present in the initial postoperative period (typically the first few days). These symptoms are short-lived and generally subside as healing progresses.

It is typical for patients to be advised to refrain from engaging in vigorous activities during the initial postoperative period. Adherence to postoperative recommendations from the physician, including the use of medications and nasal care, supports optimal healing.

Follow-up appointments may be scheduled to ensure the nasal passages are healing appropriately. Most patients resume their regular daily routines within a few days to a week after surgery; however, full healing of the nasal tissues may take several weeks.