A Multi-Centered Case Series Highlighting the Clinical Use and Dosing of Lidocaine and Mexiletine for Refractory Cancer Pain

A Specialist Palliative Pharmacist Enriches the Interdisciplinary Team: A Case Series Discussion Illustrating the Entrustable Professional Activities for Specialist Hospice and Palliative Care Pharmacists

Introduction: Palliative care (PC) pharmacists are an integral member of the PC team. Essential roles have been defined and entrustable professional activities (EPAs) have been recently developed for hospice and PC pharmacists. Case Description: We review four different complex patient cases where the specialist PC pharmacist worked with the interdisciplinary team to address whole patient suffering. Through the case series, we highlight the various components of HAPC pharmacist EPAs across the continuum of care. Case Management, Outcome, and Conclusion: Through the case series discussion, we brought to light PC pharmacists' EPAs in pharmacotherapy consultation, assessing and optimizing medication therapy, symptom management, deprescribing, participating in goals-of-care discussions, managing medication therapy in the withdrawal of life-sustaining therapy in collaboration with interdisciplinary team in alignment with patient and family values, prognosis, and plan of care. We also emphasized the importance of PC pharmacists contributing to the advancement of science.

Dexmedetomidine Continuous Infusion for Refractory Cancer Pain at End of Life: A Case Report

Refractory cancer-related pain at end-of-life (EoL) is multifaceted and may require utilizing medications with different mechanism of actions beyond opioids. We report the successful use of dexmedetomidine in a 63-year old female with recurrent breast cancer and intractable left arm pain and swelling admitted to University of California, San Diego, Health (UC San Diego Health), palliative care unit. Patient's pain and agitation continued to persist and she declined clinically despite efforts to start methadone, continuous infusion opioids, continuous infusion lidocaine and intravenous chlorpromazine by the palliative care team. On hospital day (HD) 11 patient was started on dexmedetomidine continuous infusion for refractory pain per our protocol at UC San Diego Health. The next day the patient appeared much improved in terms of pain and agitation with grimacing and moaning completely resolved. She was able to have some lucid periods and interacting with her family. With the addition of dexmedetomidine to her pain regiment, the patient was able to peacefully die 5 days later. This case report highlights the clinical utility of demedetomidine in a palliative care unit for refractory pain at EoL.

A Case Report of Phenobarbital for Proportionate Sedation to Control Refractory Symptoms at the End of Life in an Opioid Tolerant Patient

End of life (EoL) and refractory symptom management is a growing clinical topic and there is minimal literature to support effective treatment strategies, especially in individuals with a substance use disorder or opioids and/or benzodiazepine tolerance. We report the successful use of phenobarbital for proportionate EoL sedation in a 57-year-old man with opioid use disorder (heroin) and metastatic urothelial carcinoma presenting to an acute care hospital with intractable back pain related to bone metastases. During his hospitalization, his daily opioid requirement exceeded 1 gram of morphine equivalent daily dose (MEDD) with suboptimal pain control. The patient's clinical course was complicated by active heroin withdrawal, psychosocial suffering, and disease progression. Despite use of high-dose opioids and benzodiazepines, pain and anxiety were poorly controlled. After an acute medical decompensation, a goals of care discussion was held with his family and a determination with informed consent was made to change patient status to do not attempt resuscitation and proportionate sedation with phenobarbital was initiated to target refractory pain and agitation. Phenobarbital was continued for approximately 15 hours before patient peacefully died. Findings from this case report demonstrate the successful use of phenobarbital in opioid use disorder and benzodiazepine tolerance with intractable pain.