Palliative Care/Pain Management
Safely treating the patient’s malignant pain in the context of his OUD was critically important. In order to do this the palliative care team worked closely alongside ORC, is a multidisciplinary team consisting of health care providers (HCPs) from addiction psychiatry, internal medicine, health psychology and pharmacy who are consulted to evaluate veterans’ current opioid regimens and make recommendations to optimize both safety and efficacy. ORC followed this particular veteran as an outpatient and consulted on pain issues during his admission. They recommended the continuation of methadone at 120 mg daily and increased oral oxycodone to 30 mg every 6 hours, and then further increased to 45 mg every 6 hours. He continued to have increased pain despite higher doses of oxycodone, and pain medication was changed to oral hydromorphone 28 mg every 6 hours with the continuation of methadone. ORC and the palliative care team obtained consent from the veteran and a release of Information form signed by the patient to contact his community methadone clinic for further collaboration around pain management throughout the time caring for the veteran.
Even with improvement in disease based on imaging and tumor markers, opioid medications could not be decreased in this case. This is likely in part due to the multidimensional nature of pain. Careful assessment of the biologic, emotional, social, and spiritual contributors to pain is needed in the management of pain, especially at end of life.6 Nonpharmacologic pain management strategies used in this case included a transcutaneous electrical nerve stimulation unit, moist heat, celiac plexus block, and emotional support.
Psychosocial Issues/Substance Use
Psychosocial support for the patient was provided by the interdisciplinary palliative care team and the ORC team in both the inpatient and outpatient settings. Despite efforts from case management to get the veteran home services once discharged from the CLC, he declined repeatedly. Thus, the CLC social worker obtained a guardian alert for the veteran on discharge.
Close outpatient follow-up for medical and psychosocial support was very critical. When an outpatient, the veteran was scheduled for biweekly appointments with palliative care or ORC. When admitted to the hospital, the palliative care team medical director and psychologist conducted joint visits with him. Although he denied depressed mood and anxiety throughout his treatment, he often reflected on regrets that he had as he faced the end of his life. Specifically, he shared thoughts about being estranged from his surviving brother given his long struggle with substance use. Although he did not think a relationship was possible with his brother at the end of life, he still cared deeply for him and wanted to make him aware of his pancreatic cancer diagnosis. This was particularly important to him because their late brother had also died of pancreatic cancer. It was the patient’s wish at the end of his life to alert his surviving brother of his diagnosis so he and his children could get adequate screening throughout their lives. Although he had spoken of this desire often, it wasn’t until his disease progressed and he elected to transition to hospice that he felt ready to write the letter. The palliative care team assisted the veteran in writing and mailing a letter to his brother informing him of his diagnosis and transition to hospice as well as communicating that his brother and his family had been in his thoughts at the end of his life. The patient’s brother received this letter and with assistance from the CLC social worker made arrangements to visit the veteran at bedside at the inpatient CLC hospice unit the final days of his life.
Discussion
There are very little data on the safety of cancer-directed therapy in patients with active SUD. The limited studies that have been done showed conflicting results.
A retrospective study among women with co-occurring SUD and locally advanced cervical cancer who were undergoing primary radiation therapy found that SUD was not associated with a difference in toxicity or survival outcomes.7 However, other research suggests that SUD may be associated with an increase in all-cause mortality as well as other adverse outcomes for patients and health care systems (eg, emergency department visits, hospitalizations).8 A retrospective study of patients with a history of SUD and nonsmall cell lung cancer showed that these patients had higher rates of depression, less family support, increased rates of missed appointments, more emergency department visits and more hospitalizations.9 Patients with chronic myeloid leukemia or myelodysplastic syndromes who had long-term cocaine use had a 6-fold increased risk of death, which was not found in patients who had long-term alcohol or marijuana use.2
The limited data highlight the need for careful consideration of ways to mitigate potentially adverse outcomes in this population while still providing clinically indicated cancer treatment. Integrated VA health care systems provide unique resources that can maximize veteran safety during cancer treatment. Utilization of VA resources and close interdisciplinary collaboration across VA HCPs can help to ensure equitable access to state-of-the-art cancer therapies for veterans with comorbid SUD.
