What is EVALI (E-cigarette or Vaping Use-Associated Lung Injury)? Is it Fatal?

EVALI (E-cigarette, or Vaping, Product Use-Associated Lung Injury) is a medical definition given to acute lung injury associated with the use of electronic cigarettes or vaping products. This health crisis, which emerged in the United States in the summer of 2019 and spread rapidly, affected thousands of people and led to serious concerns regarding the safety of e-cigarette use.

Most EVALI cases have been associated specifically with the use of products containing THC (tetrahydrocannabinol). However, e-cigarette products containing nicotine have also played a role in some cases. Although the exact cause of the disease is still not fully understood, it is noteworthy that an additive called Vitamin E acetate is commonly found in THC-containing products and shows a strong correlation among EVALI patients.

EVALI Signs and Symptoms

EVALI symptoms usually appear gradually and can worsen within a few days or weeks. The symptoms of the disease can affect various organ systems:

Respiratory System Symptoms:

• Shortness of breath and difficulty breathing
• Chest pain
• Cough
• Rapid and shallow breathing

Gastrointestinal Symptoms:

• Nausea and vomiting
• Diarrhea
• Abdominal pain

General Symptoms:

• Fever and chills
• Extreme fatigue and weakness
• Weight loss

Since EVALI symptoms can resemble other respiratory diseases, a detailed medical history and e-cigarette use history are critical for an accurate diagnosis.

Causes and Risk Factors of EVALI

The vast majority of EVALI cases have been linked to THC-containing e-cigarette cartridges obtained through illegal means or from street vendors. Vitamin E acetate found in these products stands out as the main chemical component that can damage the lungs.

Primary Risk Factors:

• Use of products containing THC
• Products obtained from unregulated sources
• Modified or additive-containing cartridges
• Intense and frequent use
• Young age group (those between 15-24 are particularly at risk)

While Vitamin E acetate is a substance normally used safely in skin care products, it can cause serious irritation and inflammation when inhaled into the lungs.

How is it Diagnosed?

There is no standard test for diagnosing EVALI. The diagnosis is made by excluding other possible causes and evaluating clinical findings:

Diagnostic Criteria:

• History of e-cigarette product use within the last 90 days
• Lung infiltrates on chest X-ray or computed tomography (CT)
• Exclusion of infection or other alternative diagnoses
• Investigation of other causes through laboratory tests

Doctors may typically perform blood tests, chest imaging, pulmonary function tests, and sometimes advanced examinations such as bronchoscopy.

How is EVALI Treated?

There is no specific antidote or treatment method for EVALI. Treatment involves supportive care and approaches aimed at the symptoms:

Treatment Options:

• Oxygen support (mechanical ventilation when necessary)
• Corticosteroid therapy (to reduce inflammation)
• Antibiotic therapy (if bacterial infection is suspected)
• Fluid support and nutrition
• Close monitoring of vital signs

In most cases, hospitalization is required, and in severe conditions, treatment in the intensive care unit may be necessary. Early intervention significantly increases the chance of recovery.

What are the Prevention and Protective Measures?

The most effective way to protect yourself from EVALI is to not use e-cigarette products. However, risk reduction strategies for users include:

• Avoid products containing THC
• Do not buy products from illegal sources or street vendors
• Do not modify cartridges on your own or add additives
• If any respiratory symptoms develop, stop use immediately
• If symptoms appear, consult a health institution immediately
• Prefer products purchased from official sales channels

It is recommended that youth and pregnant women completely avoid e-cigarette use.

What are the Long-term Effects of EVALI?

Research is still ongoing regarding the long-term health outcomes of patients who have recovered from EVALI. While some patients recover fully, others may experience permanent lung damage:

Possible Long-term Effects:

• Decreased lung capacity
• Chronic respiratory problems
• Decreased exercise tolerance
• Predisposition to recurrent lung infections
• Psychological effects (anxiety, post-traumatic stress)

The healing process varies from patient to patient and can take months for some individuals.

What Do the Statistics Say?

A significant number of cases were reported in the US during the 2019-2020 EVALI outbreak period. According to CDC (Centers for Disease Control and Prevention) data, thousands of cases and dozens of deaths were recorded during this period.

Key Statistics:

• Most cases were seen in people under the age of 35
• The majority of patients used THC-containing products
• Men were affected more than women
• The hospitalization rate is quite high