Benzodiazepine Prescribing in People with Chronic Obstructive Pulmonary Disease: Clinical Considerations

Should Benzodiazepines be Used for Reducing Dyspnea in Patients with Advanced Illnesses?

Dyspnea is a common and highly distressing symptom in patients with advanced illnesses. Many patients continue to experience chronic dyspnea despite optimal management of underlying disease(s) and various non-pharmacologic interventions, necessitating the consideration of pharmacologic therapies for palliation of dyspnea. One commonly asked question by clinicians is whether benzodiazepines have a role in the palliation of dyspnea. In this "Controversies in Palliative Care" article, three groups of thought leaders independently answer this question. Specifically, each group provides a synopsis of the key studies that inform their thought processes, share practical advice on their clinical approach, and highlight the opportunities for future research. All three groups suggest that benzodiazepines alone do not confer a benefit for dyspnea in advanced illnesses based on existing data. They also expressed concerns about the potential adverse effects such as delirium and drowsiness and recommended against benzodiazepines as first line pharmacologic therapy. Some groups suggest that benzodiazepines may be used in highly selected patients with severe anxiety associated with dyspnea. Some investigators may also consider the adjunctive use of benzodiazepines in patients with severe dyspnea despite opioids, particularly if life expectancy is limited. Benzodiazepines also have a role in palliative sedation for refractory dyspnea in the last days of life. More research is needed to confirm the benefit of benzodiazepines in these populations.

An observational study of the factors associated with frequency of outpatient benzodiazepine prescribing to patients receiving chronic opioid analgesic therapy in primary care at a major academic center

BACKGROUND

Prescribing benzodiazepines to patients taking chronic opioid analgesic therapy increases risks of adverse events. In 2016, the Centers for Disease Control and Prevention recommended avoidance of benzodiazepine prescribing concurrently with opioids, and various organizations have instituted similar guidelines. We aimed to determine the frequency and patterns of benzodiazepine prescribing at Mayo Clinic primary care (Community Internal Medicine, Family Medicine) clinics for patients taking chronic opioid analgesic therapy and the characteristics of patients receiving the prescriptions and providers administering them.

METHODS

This retrospective observational study included adult patients taking chronic opioid analgesic therapy for 2 full years in 2018 and 2019 at Mayo Clinic primary care practices in Arizona and Florida. We assessed electronic health records for these individual patients to determine whether they received a benzodiazepine prescription during the study period and how frequently they received a prescription. Variations in prescriptions by provider specialty, location, and sex were studied. Documented data included receipt of a benzodiazepine prescription by patients with at-risk alcohol use or alcohol use disorder, depression, anxiety, chronic obstructive pulmonary disease, falls, and psychiatric referral. Data were compared between patients who received benzodiazepines and those who did not with the Kruskal-Wallis test or χ² test, and the Wilcoxon signed rank test was used to assess whether the change in number of benzodiazepine prescriptions (2018 vs. 2019) was different from zero.

RESULTS

Study participants (N = 457) were predominantly women (n = 266, 58.2%); median age was 69 years. In total, 148 patients (32.4%) received benzodiazepine prescription. These patients were more likely to be women (P = .046) and younger (P = .02). Mean percentage change was 176.9% (P < .001) in number of benzodiazepine prescriptions provided from 2018 to 2019. Frequency of referral to mental health providers was low, as was presence of an established mental health provider despite a greater prevalence of anxiety (P < .001) and depression (P = .001) among patients receiving benzodiazepines.

CONCLUSION

Benzodiazepine prescription to individual patients taking chronic opioid analgesic therapy significantly increased from 2018 to 2019 despite the documented risks and harms associated with such practice. No statistically significant difference was observed in frequency of benzodiazepine prescriptions between practice location, sex of provider, or specialty.

Benefit-Risk Assessment of Psychotropic Drugs in Older Patients with Chronic Obstructive Pulmonary Disease

Depression, anxiety, and other mental health disorders, including bipolar disorder and schizophrenia, occur commonly in older adults with chronic obstructive pulmonary disease (COPD), and they are often inadequately treated. We review the available evidence for benefits and risks of pharmacologic treatments (e.g. selective serotonin reuptake inhibitors [SSRIs], serotonin-noradrenaline reuptake inhibitors [SNRIs], tricyclic antidepressants [TCAs], antipsychotic drugs, and benzodiazepines) for common mental illnesses in older persons with COPD. Evidence to use both SSRIs/SNRIs and TCAs from randomized controlled trials is uncertain for treating major depression in patients with COPD. However, population-based findings indicate that they are widely used, and this valuable intervention (preferably SSRIs/SNRIs) should not be denied for selected patients after evaluating potential risks and benefits, especially patients presenting with major depression and suicidal ideation, when a collaborative-care approach is being used. Although there is some evidence for the short-term use of benzodiazepines for treating insomnia, breathlessness, and anxiety in patients with COPD, their long-term use should be closely monitored or avoided to reduce the increased rate of major adverse events. Currently, there are only limited data on the use of antipsychotic drugs for managing schizophrenia or bipolar disorder in older patients with COPD. Hence, clinicians should use extra caution when prescribing antipsychotic agents and be vigilant for symptoms of acute respiratory failure and other adverse effects. Psychotropic medications are clearly beneficial for younger, healthy persons with depression and anxiety; however, the risk-benefit calculation is not so clear for treating psychological problems, schizophrenia, and bipolar disorder in older adults with COPD, given older-adult sensitivity to medications and the mixed findings of relatively few controlled trials.