The Effect of a Single-Dose Aminoglycoside With a Beta-Lactam for the Treatment of Gram-Negative Bacteremia.

Introduction: Aminoglycosides possess activity against aerobic gram-negative organisms and are often used in combination with beta-lactam antibiotics. Previous studies evaluating combination therapy in gram-negative bacteremia have not shown clear benefits, however antimicrobial resistance was not prevalent in these studies. Our objective is to elucidate potential benefits of adding a single dose of an aminoglycoside to a beta-lactam in patients with gram-negative bacteremia. Methods: This study was a single-center, retrospective, cohort study including patients 18 years old or older and treated for at least 24 hours for a confirmed gram-negative bacteremia. Patients were divided into two groups: receipt of beta-lactam monotherapy (n = 164) and receipt of a beta-lactam in addition to a single dose of an aminoglycoside (n = 79) within 24 hours of bacteremia onset. The primary endpoint was infection-related 30-day mortality per provider documentation. Key secondary outcomes include incidence of acute kidney injury (AKI) and time to improvement of AKI. Data were analyzed using Chi-square or Fisher's exact tests, student's T test, and descriptive statistics as appropriate. Results: The primary outcome occurred in 13/164 vs 2/79 patients in the monotherapy and combination groups (P = 0.10). Incidence of AKI (14% vs. 12%) and time to recovery from AKI (90 hours; IQR [50 - 133] vs 78 hours; IQR [42 - 128]) were comparable between groups (P = 1.00 and P = 0.73, respectively). Conclusions: The addition of a single-dose aminoglycoside was not significantly associated with reduced mortality or increased time to recovery from AKI in our patient population. Larger studies, particularly in more severely ill patient populations, are needed.

Hospital Readmissions in Hospice Patients: Evaluation of Medication-Related Causes for Readmission.

CONTEXT: Hospital readmissions, frequent medication changes, and polypharmacy are common issues for hospice patients. It is important to consider if close monitoring of medications by pharmacists could help these patients avoid hospital readmissions. OBJECTIVE: The objectives of this study were to determine the incidence and types of medication-related problems that contributed to hospital readmissions from hospice settings. METHODS: A retrospective chart review was conducted from October 1, 2018 to January 31, 2020. Patients admitted from hospice settings (i.e. Home, ALF, LTCF) and who were seen by the palliative care teams at 9 Maryland and Washington DC MedStar hospitals were included. Demographic information was collected: age, gender, race, primary hospice diagnosis, prognosis determined by provider prior to hospice disposition, reason for readmission, and medication list at readmission. The primary outcomes were the incidence and types of medication-related problems. Secondary outcomes included patient characteristics associated with readmission, and classes/number of medications changed before readmission. Descriptive statistics were used to analyze data. RESULTS: Seventy-five hospice patients were readmitted and seen by palliative care during the study period. Forty-three patients (57%) were found to have medication-related problems at readmission. The most common problem identified was needing additional drug therapy. Dose too low, dose too high, incorrect drugs, adverse drug reactions, and non-adherence were also identified. Additional reasons for readmission were: unanticipated new medical issue (n = 46, 61%) and uncontrolled symptoms (n = 34, 34%). CONCLUSIONS: These findings suggest that deprescribing practices possibly contributeto readmissions from hospice settings.