The effect of methadone on corrected QT interval (QTc) in patients with cancer pain is not well-known. Objectives: To describe and characterize the effect of low-, moderate-, and high-dose enteral methadone on QTc interval in patients with cancer. Methods: Retrospective cohort study including patients prescribed enteral methadone during the 27-month study period. Participants were divided into 3 methadone daily dose groups: <30 (low dose), 30 to 59 (moderate dose), !60 (high dose) mg. The primary outcome was the incidence of QTc prolongation (>450 ms for females and >430 ms for males). Secondary outcomes included the magnitude of change in QTc after starting methadone, the incidence of clinically significant QTc prolongation (>500 ms) and the prevalence of torsades de pointes and syncope. Results: Two hundred three patients met study inclusion criteria: 91 (45%) low dose, 52 (26%) moderate dose, and 60 (29%) high dose. Incidence of QTc prolongation for low-, moderate-, and high-dose groups was 50 (55%), 37 (71%), and 43 (72%), respectively (P ¼ .039, low vs high dose). Incidence of clinically significant QTc prolongation was 10 (11%), 4 (8%), and 7 (12%) for low-, moderate-, and high-dose groups. For patients without QTc prolongation prior to initiating methadone, 62% of moderate-dose patients and 67% of high-dose patients had QTc prolongation, while taking methadone. Conclusion: This study found a notably high incidence of QTc prolongation in patients with cancer using enteral methadone. Future studies should aim to determine the risk of adverse cardiac effects in the cancer population and determine appropriate monitoring of methadone for pain management.
The problem of opioid diversion and its contribution to the opioid epidemic are well known nationally, existing even within hospice care. Proper disposal of opioids may be a critical factor in reducing diversion. In 2014, Ohio implemented legislation requiring a hospice employee to destroy or witness disposal of all unused opioids within a patient’s plan of care. The purpose of this study was to determine the impact of Ohio Revised Code 3712.062 on hospice programs’ policies and procedures to prevent opioid diversion in the home. Directors of Ohio-licensed hospices were surveyed to assess the percentage of programs with a written policy in place for disposal of opioids and to calculate a compliance score based on responses to survey questions assessing compliance with legislation components. Fifty-two surveys were completed (39.4%). All survey respondents reported having a written policy in place. A 95.5% average compliance score was calculated, with the largest disparity occurring with timing of opioid disposal. While Ohio Revised Code 3712.062 requires opioid disposal at the time of patient’s death or when no longer needed by the patient, only 84% of respondents report disposing opioids upon discontinuation. Overall, a high compliance rate was seen among hospice programs indicating such regulation is manageable to meet.
Infections often impact care of hospice patients; however, limited guidance exists for end-of-life infection management. Regardless of patient prognosis, appropriate antibiotic use is necessary for maintaining quality of life. Antibiotics may be associated with serious adverse events, posing safety risks to patients that should be factored into the appropriateness determination. Fluoroquinolone antibiotics are prescribed frequently in hospice. There are 8 fluoroquinolone drug safety warnings regarding risk for serious adverse events communicated by the US Food and Drug Administration. A retrospective chart review at a hospice pharmacy services provider identified decedents who used a fluoroquinolone during a 1-month period. Charts were evaluated for the presence of risk factors for serious adverse events, including advanced age (86.0%), orders for multiple QTc prolongation risk medications (51.5%), hypertension (64.1%), and concomitant corticosteroids (22.9%). Findings demonstrate notable risk with the use of at least 1 class of antibiotics in a hospice population. STAMPS is a hospice decision support tool, developed to guide symptom-driven antibiotic use that incorporates safety assessment and individual goals of care into infection management planning. The tool can also serve as a framework for patient-centered communications about appropriate antibiotic use in hospice between providers, patients, and families.
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