Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0014118 (endocarditis)
 15,629 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Damage to lungs may occur from systemic as well as inhalational exposure to various illegal drugs of abuse. Aspiration pneumonia probably represents the most common pulmonary complication in relation to consciousness impairment. Some pulmonary consequences may be specifically related to one given drug. Prolonged smoking of marijuana may result in respiratory symptoms suggestive of obstructive lung disease. Non-cardiogenic pulmonary edema has been attributed to heroin, despite debated mechanisms including attempted inspiration against a closed glottis, hypoxic damage to alveolar integrity, neurogenic vasoactive response to stress, and opiate-induced anaphylactoid reaction. Naloxone-related precipitated withdrawal resulting in massive sympathetic response with heart stunning has been mistakenly implicated. In crack users, acute respiratory syndromes called "crack-lung" with fever, hemoptysis, dyspnea, and pulmonary infiltration on chest X-rays have been reported up-to 48h after free-base cocaine inhalation, with features of pulmonary edema, interstitial pneumonia, diffuse alveolar hemorrhage, and eosinophil infiltration. The high-temperature of volatilized cocaine and the presence of impurities, as well as cocaine-induced local vasoconstriction have been suggested to explain alveolar damage. Some other drug-related pulmonary insults result from the route of drug self-administration. In intravenous drug users, granulomatous pneumonia with multinodular patterns on thoracic imaging is due to drug contaminants like talcum. Septic embolism from right-sided endocarditis represents an alternative diagnosis in case of sepsis from pulmonary origin. Following inhalation, pneumothorax, and pneumomediastinum have been attributed to increased intrathoracic pressure in relation to vigorous coughing or repeated Valsalva maneuvers, in an attempt to absorb the maximal possible drug amount. In conclusion, pulmonary consequences of illicit drugs are various, resulting in both acute life-threatening conditions and long-term functional respiratory sequelae. A better understanding of their spectrum and the implicated mechanisms of injury should help to improve patient management.
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PMID:The large spectrum of pulmonary complications following illicit drug use: features and mechanisms. 2414 76

More than 750,000 persons in the United States inject opioids, methamphetamine, cocaine, or ketamine, and that number is increasing because of the current opioid epidemic. Persons who inject drugs (PWID) are at higher risk of infectious and noninfectious skin, pulmonary, cardiac, neurologic, and other causes of morbidity and mortality. Nonjudgmental inquiries about current drug use can uncover information about readiness for addiction treatment and identify modifiable risk factors for complications of injection drug use. All PWID should be screened for human immunodeficiency virus infection, latent tuberculosis, and hepatitis B and C, and receive vaccinations for hepatitis A and B, tetanus, and pneumonia if indicated. Pre-exposure prophylaxis for human immunodeficiency virus infection should also be offered. Naloxone should be prescribed to those at risk of opioid overdose. Skin and soft tissue infections are the most common medical complication in PWID and the top reason for hospitalization in these patients. Signs of systemic infection require hospitalization, blood cultures, and a comprehensive history and physical examination to determine the source of infection. PWID have a higher incidence of community-acquired pneumonia and are at risk of other pulmonary complications, including opioid-associated pulmonary edema, asthma, and foreign body granulomatosis. Infectious endocarditis is the most common cardiac complication associated with injection drug use and more often involves the right-sided heart valves, which may not present with heart murmurs or peripheral signs and symptoms, in PWID. Injections increase the risk of osteomyelitis, as well as subdural and epidural abscesses.
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PMID:Primary Care for Persons Who Inject Drugs. 3141 85