Opiate inhalation and occupational asthma

Prescriptions of opioid-containing drugs in patients with chronic cough

BACKGROUND

Chronic cough (CC) affects about 10% of adults, but opioid use in CC is not well understood.

OBJECTIVES

To determine the use of opioid-containing cough suppressant (OCCS) prescriptions in patients with CC using electronic health records.

DESIGN

Retrospective cohort study.

METHODS

Through retrospective analysis of Midwestern U.S. electronic health records, diagnoses, prescriptions, and natural language processing identified CC - at least three medical encounters with cough, with 56-120 days between first and last encounter - and a 'non-chronic cohort'. Student's t-test, Pearson's chi-square, and zero-inflated Poisson models were used.

RESULTS

About 20% of 23,210 patients with CC were prescribed OCCS; odds of an OCCS prescription were twice as great in CC. In CC, OCCS drugs were ordered in 38% with Medicaid insurance and 15% with commercial insurance.

CONCLUSION

Findings identify an important role for opioids in CC, and opportunity to learn more about the drugs' effectiveness.

[Bronchial diseases and heroin use. A systematic review]

INTRODUCTION

Heroin use can cause respiratory complications including asthma, chronic obstructive pulmonary disease (COPD) and bronchiectasis (BD).

OBJECTIVES

A general review of the literature presenting the data on the relationships between heroin consumption and bronchial complications, while underlining the difficulties of diagnosis and management.

DOCUMENTARY SOURCES

Medline, 1980-2022, keywords "asthma" or "bronchospasm" or "COPD" or "bronchiectasis" and "heroin" or "opiate" or "opiates", with limits pertaining to "Title/Abstract". Concerning asthma, 26 studies were included, as were 16 for COPD and 5 for BD.

RESULTS

Asthma and COPD are more prevalent among heroin addicts, who are less compliant than other patients with their treatment. The authors found a positive association between frequency of asthma exacerbations, admission to intensive care and heroin inhalation. Late diagnosis of COPD worsens the course of the disease; emphysema and BD are poor prognostic factors.

CONCLUSION

Bronchial diseases in heroin users can be identified by means of respiratory function exploration and chest CT scans. These tests should be performed frequently in view of optimizing their care, which includes their weaning themselves from addictive substances.

[Asthma and heroin use]

INTRODUCTION

Heroin use can be responsible for many respiratory complications including asthma.

OBJECTIVES

Systematic literature review of data on asthma in heroin users.

DOCUMENTARY SOURCES

Medline®, on the period 1980-2017 with the following keywords: keywords: "asthma" or "bronchospasm" and "heroin" or "opiate" or "opiates", limits "title/abstract"; the selected languages were English or French. Among 97 articles, 67 abstracts have given use to a dual reading to select 23 studies.

RESULTS

The seven case reports included 21 patients (mean age: 28 years [19-46 years]; sex-ratio: 2.5 [males: 71.5%]). Heroin was inhaled (71.4%), sniffed (19%) or injected by intravenous route (9.5%). Associated addictive substances were tobacco (81%), cannabis (38%), alcohol (4.7%) and cocaine (4.7%). Outcome was fatal in 3 subjects (14.3%). Other studies included one cross-sectional study, 3 case-control studies and 12 longitudinal studies (11 retrospective studies and one prospective study). The proportion of heroin users was higher in asthmatic subjects and the prevalence of asthma and bronchial hyperreactivity was higher in heroin users. Heroin use can be responsible for asthma onset, with a temporal relationship between the onset of heroin use and asthma onset in 28 to 31% of subjects. A positive association between inhaled heroin use and acute asthma exacerbation was observed. Asthma treatment observance was lower in heroin users. In case of asthma exacerbation, heroin users were more likely to seek care in the emergency department, to be admitted in intensive care units and to require intubation and invasive ventilation. Asthma deaths related to heroin use mainly occurred following an intravenous injection (especially in the case of overdose), but also following heroin use by nasal (sniff) or pulmonary route.

CONCLUSION

Heroin use may be responsible for asthma onset, acute asthma exacerbations (which may require intubation and invasive ventilation) or deaths related to asthma. Heroin use must be sought in case of asthma exacerbation in young persons and practitioners must help heroin users to stop their consumption.

Asthma associated with the use of cocaine, heroin, and marijuana: A review of the evidence

OBJECTIVE

A review of the evidence was conducted regarding asthma associated with the use of cocaine, heroin, and marijuana.

DATA SOURCES

A search of the English literature was performed via PubMed/Medline and EMBASE using the search terms asthma AND cocaine, heroin, and marijuana. When pertinent articles were found, salient references in those articles were assessed.

STUDY SELECTION

Due to the relatively small number of studies, we included all studies and cases.

RESULTS

For several decades, case reports, retrospective studies, and laboratory investigations have demonstrated that inhalation of cocaine or heroin is associated with increased asthma symptoms and reduced pulmonary function. Smoking crack cocaine, nasal insufflation of cocaine or heroin, and smoking heroin increases the risk of emergency department visits and hospitalizations for asthma. Although frequent smoking of marijuana may cause symptoms of cough, sputum production, and wheezing in the general population, more studies are needed specifically in patients with asthma. Smoking marijuana with concomitant tobacco use is common and further worsens the respiratory symptoms.

CONCLUSIONS

Use of cocaine and heroin in patients with asthma should be avoided. Pending further studies, it would be prudent for patients with asthma to avoid smoking marijuana. Clinicians need to be vigilant regarding use of these drugs in their patients with hyperreactive airway disease.

Opium use and risk of mortality from digestive diseases: a prospective cohort study

OBJECTIVES

Opium use, particularly in low doses, is a common practice among adults in northeastern Iran. We aimed to investigate the association between opium use and subsequent mortality from disorders of the digestive tract.

METHODS

We used data from the Golestan Cohort Study, a prospective cohort study in northeastern Iran, with detailed, validated data on opium use and several other exposures. A total of 50,045 adults were enrolled during a 4-year period (2004-2008) and followed annually until December 2012, with a follow-up success rate of 99%. We used Cox proportional hazard regression models to evaluate the association between opium use and outcomes of interest.

RESULTS

In all, 8,487 (17%) participants reported opium use, with a mean duration of 12.7 years. During the follow-up period 474 deaths from digestive diseases were reported (387 due to gastrointestinal cancers and 87 due to nonmalignant etiologies). Opium use was associated with an increased risk of death from any digestive disease (adjusted hazard ratio (HR)=1.55, 95% confidence interval (CI)=1.24-1.93). The association was dose dependent, with a HR of 2.21 (1.57-3.31) for the highest quintile of cumulative opium use vs. no use (Ptrend=0.037). The HRs (95% CI) for the associations between opium use and malignant and nonmalignant causes of digestive mortality were 1.38 (1.07-1.76) and 2.60 (1.57-4.31), respectively. Increased risks were seen both for smoking opium and for ingestion of opium.

CONCLUSIONS

Long-term opium use, even in low doses, is associated with increased risk of death from both malignant and nonmalignant digestive diseases.

"Dangerous relationships": asthma and substance abuse

Commonly abused drug are cocaine, marijuana, cigarettes, heroin, and alcohol. The review emphasizes the importance for clinicians to be alert to the possibility of this substance as a precipitating factor for acute asthma. Substance use disorders to characterize illnesses associated with drug use. The use of drugs of abuse increases risk of developing more severe symptoms, higher frequency of exacerbations and having and significant effect on care resources due to clinicians visits and frequent hospital admissions. Abused drug has been shown to accelerate the decline in lung function and to increase numbers of life-threatening asthma attacks, and greater asthma mortality.

Heroin insufflation as a trigger for patients with life-threatening asthma

STUDY OBJECTIVES

To determine the prevalence of self-reported, heroin-associated asthma symptoms among inner-city patients treated for life-threatening asthma, and to compare the rates of drug use between ICU patients with asthma and ICU control patients with diabetic ketoacidosis (DKA).

DESIGNS

Study 1 was a sequential case series of patients requiring ICU admission for asthma (January to June 1999). Study 2 was a retrospective, case-control study of drug use among asthma patients and control subjects with DKA requiring ICU care (1997 to 1998).

SETTING

Inner-city, public hospital ICU.

PATIENTS

Twenty-three patients (26 ICU admissions) with asthma (age range, 16 to 50 years) admitted to the ICU from January to June 1999, and 84 patients (104 ICU admissions) with asthma and 42 patients with DKA (age range, 15 to 50 years) admitted to the ICU during 1997 to 1998. Outcomes studied: Self-reported, heroin-associated exacerbations, history of heroin or cocaine use, and urine drug screen (UDS) results.

MEASUREMENTS AND RESULTS

In the sequential ICU admissions, 13 of 23 patients (56%) described asthma exacerbations associated with heroin insufflation. In the case-control study, asthmatics were significantly more likely to report heroin use (41.3% vs 12.5%; p = 0.006) and had a significantly higher prevalence of UDS results positive for opiates (60% vs 7%; p = 0.001) compared to subjects with DKA. The rates of cocaine use by history and UDS results did not differ significantly between the two groups.

CONCLUSIONS

At least since 1997, heroin insufflation is a common asthma trigger in this inner-city ICU and should be considered in the care of patients with life-threatening asthma.

Sinopulmonary complications of illicit drug use

Illicit drug use is frequently complicated by sinopulmonary illnesses. These complications fall into two major categories: (1) direct effects of drug exposure, and (2) indirect effects caused by HIV-induced immunosuppression. This article reviews the more common sinopulmonary syndromes associated with illicit drug use.

Antibodies to morphine in workers exposed to opiates at a narcotics manufacturing facility and evidence for similar antibodies in heroin abusers

According to the International Narcotics Control Board, over 45,000 kg of morphine and 54,000 kg of codeine were ethically manufactured in 1986 at three facilities in the United States. Little information exists about possible adverse health effects associated with workplace exposure to opiate compounds in this industry. Because there are no specific federal standards for workplace exposure to narcotic dusts, exposure-control defaults to the nuisance dust standard (10 mg/m3, as an 8 hr time-weighted average). Narcotics manufacturing workers were evaluated for anti-morphine IgG before and 10 mo. after the implementation of an improved respiratory protection program (RPP). Significantly elevated IgG levels were measured before the improved RPP (P less than 0.005). After the improved RPP, a significant reduction was observed (P less than 0.001), suggesting that specific antibody levels could be used as biomarkers of exposure. Inhibition studies showed that the antibodies were specifically directed against morphine with some cross reactivity with morphine derivatives. Preliminary results are also shown which indicate that similar anti-morphine antibodies are present in the sera of intravenous heroin abusers. Elevated levels (P less than 0.05) of anti-morphine antibodies were detected in sera from heroin abusers, providing evidence that similar antibodies may be produced from non-occupational exposure to opiates. These finding have potentially far-reaching implications for addiction research and drug testing.