[Alveolar hemorrhage and cocaine use]

Area of Science:

• Pulmonary Medicine
• Toxicology
• Internal Medicine

Background:

• Cocaine is the second most frequently used illicit drug in France, with crack cocaine use often leading to respiratory issues.
• Alveolar hemorrhage is a serious respiratory disorder associated with cocaine use.

Purpose of the Study:

• To systematically review the existing literature on the association between cocaine use and alveolar hemorrhage.
• To clarify the diagnostic criteria, clinical presentation, and outcomes of cocaine-induced alveolar hemorrhage.

Main Methods:

• A systematic literature search was conducted using Medline for articles published between 1980 and 2016.
• Data from 84 relevant articles were collected and analyzed.

Main Results:

• The review identified 13 cases of cocaine-induced alveolar hemorrhage.
• Commonly observed symptoms included hemoptysis, anemia, and diffuse alveolar opacity on imaging (pulmonary CT).
• Hemosiderin-laden macrophages in bronchoalveolar lavage or lung biopsy confirmed the diagnosis in most cases.

Conclusions:

• Cocaine-induced alveolar hemorrhage, though infrequently reported in acute cases, is frequent in postmortem studies.
• The condition typically resolves favorably upon cessation of cocaine use, with few fatal outcomes.
• Interventions aimed at helping individuals stop cocaine use are crucial for preventing and managing lung damage.