Leveling Up: Evaluation of IV v. PO Linezolid Utilization and Cost after an Antimicrobial Stewardship Program Revision of IV to PO Conversion Criteria within a Healthcare System.

The CDC's Core Elements of an Antimicrobial Stewardship Program (ASP) lists intravenous (IV) to oral (PO) conversion as an important pharmacy-based intervention. However, despite the existence of a pharmacist-driven IV to PO conversion protocol, conversion rates within our healthcare system remained low. We aimed to evaluate the impact of a revision to the current conversion protocol on conversion rates, using linezolid as a marker due to its high PO bioavailability and high IV cost. This retrospective, observational study was conducted within a healthcare system composed of five adult acute care facilities. The conversion eligibility criteria were evaluated and revised on 30 November 2021. The pre-intervention period started February 2021 and ended November 2021. The post-intervention period was December 2021 to March 2022. The primary objective of this study was to establish if there was a difference in PO linezolid utilization reported as days of therapy per 1000 days present (DOT/1000 DP) between the pre- and post-intervention periods. IV linezolid utilization and cost savings were investigated as secondary objectives. The average DOT/1000 DP for IV linezolid decreased from 52.1 to 35.4 in the pre- and post-intervention periods, respectively (p < 0.01). Inversely, the average DOT/1000 DP for PO linezolid increased from 38.9 in the pre-intervention to 58.8 for the post-intervention period, p < 0.01. This mirrored an increase in the average percentage of PO use from 42.9 to 62.4% for the pre- and post-intervention periods, respectively (p < 0.01). A system-wide cost savings analysis showed projected total annual cost savings of USD 85,096.09 for the system, with monthly post-intervention savings of USD 7091.34. The pre-intervention average monthly spend on IV linezolid at the academic flagship hospital was USD 17,008.10, which decreased to USD 11,623.57 post-intervention; a 32% reduction. PO linezolid spend pre-intervention was USD 664.97 and increased to USD 965.20 post-intervention. The average monthly spend on IV linezolid for the four non-academic hospitals was USD 946.36 pre-intervention, which decreased to USD 348.99 post-intervention; a 63.1% reduction (p < 0.01). Simultaneously, the average monthly spend for PO linezolid was USD 45.66 pre-intervention and increased to USD 71.19 post-intervention (p = 0.03) This study shows the significant impact that an ASP intervention had on IV to PO conversion rates and subsequent spend. By revising criteria for IV to PO conversion, tracking and reporting results, and educating pharmacists, this led to significantly more PO linezolid use and reduced the overall cost in a large healthcare system.

Can't keep it SECRET: system evaluation of carbapenem restriction against empirical therapy.

Objectives: Carbapenems are appealing agents for empirical use given their broad spectrum of activity; however, selective use is vital in minimizing the risk for development of carbapenem-resistant pathogens. We aimed to examine the impact of carbapenem restriction criteria and a pre-authorization process on utilization and cost savings across a health system. Methods: This retrospective study was conducted across five adult hospitals. The pre-implementation period was 8 February 2020 to 30 April 2020 and the post-implementation period was 8 February 2022 to 30 April 2022. The primary outcome was to compare the number of orders for carbapenems between the study periods for both the intervention and non-intervention hospitals. Secondary outcomes included projected annual cost and an estimated cost-savings evaluation using a stratified analysis for the intervention and non-intervention facilities to account for more resource-limited settings. Results: The total number of carbapenem orders decreased between study periods at the intervention hospital (246 versus 61, P < 0.01). At the non-intervention hospitals, orders decreased, although not significantly (333 versus 279, P = 0.58). Meropenem orders decreased by 66% compared with 12% for the intervention and the non-intervention hospitals, respectively (P < 0.001). Annual estimated cost for all facilities was $255 561 in the pre-implementation period compared with $29 593 in the post-implementation period (P < 0.001). Using a stratified analysis to account for available resources, the estimated annual cost saving was $225 968 for the system. Conclusions: Implementation of carbapenem restriction at the intervention hospital decreased utilization and provided significant cost savings. Furthermore, resource-limited facilities can still experience significant cost savings using a stratified antimicrobial stewardship intervention approach.

Evaluation of Hospitalized Patients Receiving High versus Low-Dose Opioids for Non-Cancer Pain.

Limited studies suggest that opioid-related adverse effects (ORAEs) may worsen hospitalized patient outcomes, but there is insufficient data related to the impact of high-dose opioids compared to low-dose on adverse patient events. Given the paucity of data, our study aims to evaluate these ORAEs in the general hospitalized patient with non-cancer pain. A retrospective study of adult patients receiving opioids with a primary diagnoses of myocardial infarction, chronic obstructive pulmonary disease, heart failure, pneumonia, sepsis, or diabetes was conducted. Average oral morphine milligram equivalents (MMEs) administered over the entire LOS was collected, and patients were categorized as high-dose (≥50 MMEs/day) or low-dose (<50 MMEs/day). The primary composite endpoint was the incidence of ORAEs (naloxone use, decreased oxygen saturations, nausea/vomiting). Secondary outcomes included LOS, 30-day readmission, ORAEs with >100 MMEs/day. A total of 100 patients were included (n = 58 low-dose group; n = 42 high-dose group). For the primary outcome, more patients in the high-dose group experienced ORAEs (50% high-dose vs. 22.4% low-dose; p < 0.006). No statistically significant differences in LOS or 30-day readmission rates were identified between the groups. For patients receiving >100 MMEs/day, ORAEs occurred in 61% of patients. Hospitalized patients receiving high-dose opioids for non-cancer pain may have an increased incidence of ORAEs.

Pharmacist Transition-of-Care Services Improve Patient Satisfaction and Decrease Hospital Readmissions.

BACKGROUND: Pharmacists ability to directly impact patient satisfaction through increases in the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) surveys utilizing transitions-of-care (TOC) services is unclear. METHODS: Retrospective analysis of TOC patients from 07/01/2018 to 03/31/2019 was conducted. Intervention (INV) patients received pharmacist medication reconciliation and education prior to discharge and post-discharge telephone follow-up. All other patients served as control group (CON). Primary outcome: Evaluate impact of TOC services on HCAHPS scores for "Communication about Medicines" and "Care Transitions." Secondary outcomes: 30-day readmissions, quantification of prevented potential safety events, assessment of discharge prescriptions sent to the academic medical center outpatient pharmacy (MOP) for TOC patients. RESULTS: Of 1,728 patients screened, 414 patients met inclusion criteria (INV = 414, CON = 1314). A significant improvement (14.7%; p = <0.0001) in overall medication-related HCAHPS results was seen when comparing pre- vs post-implementation of the TOC service. Statistically significant increases for individual questions "staff told you what the medicine was for" (14.2%; p = 0.018), "staff describe possible effects" (21.2%; p = 0.004), and "understood the purpose of taking medications" (11.4%; p = 0.035) were observed. A non-significant decrease in 30-day readmission rates for the groups was observed (CON 16.4%, INV 13.3%; p = 0.133); however, an unplanned subgroup analysis evaluating impact of discharge phone calls on 30-day readmission rates revealed a significant reduction of 17.3% to 12.4% (p = 0.007). One hundred forty-three medication safety event(s) were potentially prevented by the TOC pharmacist. Lastly, 562 prescriptions were captured at the MOP as a result of the TOC initiative. CONCLUSIONS: Pharmacy-based TOC models can improve patient satisfaction, prevent hospital readmissions, and generate revenue.

Clinical and Economic Implications of Restrictions on Calcitonin Utilization in a Health System.

Background: Hypercalcemia is a relatively common problem that may require hospital admission based on severity. A treatment option for hypercalcemia is calcitonin given intramuscularly or subcutaneously. Purpose: In 2015, calcitonin was on our health system formulary, but due to a sharp rise in cost, restrictions were placed to ensure appropriate utilization. Intervention: These restrictions reserved calcitonin for patients with symptomatic hypercalcemia or severe hypercalcemia, which was defined as an ionized calcium of greater than 1.5 mmol/L and/or total/corrected calcium (Ca) of greater than 13 mg/dL. In addition to providing criteria for its use, calcitonin orders also had an automatic stop date of 24 hours to ensure no more than 2 doses were provided in a 24-hour period. After the initial 24 hours, a patient would have to be reviewed again before any further doses were ordered and administered. If the patient met criteria, an additional 2 doses could be given in the next 24 hours for a total maximum treatment of 4 doses over a 48-hour time frame. Results: An evaluation to assess health system-wide compliance of the usage of calcitonin restrictions regarding utilization, effectiveness, and cost was conducted. In the 2-month study time frame that was examined, there was a decrease in 66 vials of calcitonin that were dispensed. This represents a 43% reduction in usage and an estimated US $450,000 reduction in the total money spent for calcitonin annually. No notable differences in Ca reduction were identified between the groups. Conclusion: This evaluation revealed that putting health system-wide restrictions in use for a high-cost medication can have a major financial impact without compromising clinical efficacy.

Comparison of Nafcillin and Cefazolin for the Treatment of Methicillin-Susceptible Staphylococcus aureus Bacteremia.

BACKGROUND: Traditionally, the antibiotic of choice for Methicillin-susceptible Staphylococcus aureus related blood stream infections (MSSA-BSI) are the antistaphylococcal penicillins. Cefazolin is considered an alternative agent, with recent evidence showing similar clinical efficacy. This study further evaluates the utility of nafcillin versus cefazolin in MSSA bacteremia including high disease burden sources of infection and its impact on treatment failure. METHODS: This retrospective study included patients admitted to Methodist LeBonheur Healthcare adult hospitals from 2011 to 2016. Patients were included if they received at least 3 days of either nafcillin or cefazolin and had a positive blood culture for MSSA. The primary objective was to evaluate rates of treatment failure between groups. Secondary outcomes included clinical and microbiological cure, MSSA-BSI associated readmissions, identification of risk factors for treatment failure including disease burden, in-hospital and 90 day mortality. RESULTS: A total of 277 patients were included (nafcillin n = 126; cefazolin n = 151). Treatment failure and microbiologic cure were similar between nafcillin and cefazolin (20.6% vs. 16.6%; 91.2% vs. 87.2%, respectively). Clinical cure was significantly higher in the cefazolin treatment arm (93.4 vs. 83.3%; P = 0.012). However, the total number of patients with high disease burden was greater in the nafcillin group (54.8% vs. 39.1%; P = 0.011). Higher rates of in-hospital mortality were observed in the nafcillin group (15.1% vs. 6%; P = 0.016). CONCLUSIONS: Our study observed significantly higher rates of clinical cure and reduced in-hospital mortality in patients who received cefazolin. Further analysis is warranted to evaluate the effectiveness of these agents and identifying predictors of treatment failure.

Comparison of three antimicrobial strategies in diabetic foot infections post-amputation.

BACKGROUND: The 2012 Infectious Disease Society of America (IDSA) guidelines recommend antimicrobial treatment of diabetic foot infections (DFIs) post-amputation, but the optimal route and duration are poorly defined. OBJECTIVE: The objective of this study was to determine whether the selection of a specific antimicrobial treatment modality affected hospital and patient outcomes. METHODS: This was a retrospective review of hospital admissions of adults admitted to ourhealthcare system with a primary diagnosis of DFIs post-amputation. The groups were separated into patients who received intravenous antimicrobials (IV), oral antimicrobials (PO), or no antimicrobials (NA). Outcomes included average length of stay among others. RESULTS: Of the 200 patients screened, 120 patients were included (IV n = 72; PO n = 20; NA n = 28). No statistically significant differences were identified in average LOS (IV = 9.97 ± 5.85, PO = 8.83 ± 7.37, NA = 9.33 ± 5.91 days; p = 0.73). However, post-operative (post-op) LOS was significantly shorter in the PO group (PO = 3.43 ± 2.56, IV = 7.34 ± 5.95, NA = 5.81 ± 4.18 days; p = 0.0001). CONCLUSION: The results of our study indicate that a PO antimicrobial treatment strategy post amputation for DFIs has the potential to decrease post-op LOS without increasing the risk of readmission. Based on the results of our study, we feel consideration should be given to transition to oral antimicrobials soon after amputation to facilitate discharge and decrease the utilization of intravenous antimicrobials.

Lorazepam versus chlordiazepoxide for the treatment of alcohol withdrawal syndrome and prevention of delirium tremens in general medicine ward patients.

Alcohol withdrawal syndrome (AWS) is a serious complication of abrupt alcohol cessation. Severe AWS can develop into delirium tremens (DT), which is potentially life-threatening. Lorazepam (LOR) and chlordiazepoxide (CDE) are mainstays of therapy for AWS. Current literature lacks studies comparing outcomes between the two drugs for patients who are not in a de-addiction ward specifically for withdrawal treatment. The primary objective of the study was to determine the incidence rate of DT between the groups. Of 2112 patients screened, 142 met inclusion criteria (LOR = 74, CDE = 68). Baseline characteristics were similar between groups. No significant difference in the primary outcome of DT development was observed (7% LOR, 9% CDE; p = 0.76). No significant differences in cumulative doses of scheduled LOR or CDE were observed (LOR 14.6 ± 8 mg, CDE 15.4 ± 12; p = 0.64). However, significant differences were found in the amount of "as needed" (PRN) LOR required for the two groups (LOR 3.2 ± 4 mg, CDE 6.6 ± 13 mg; p = 0.03) and the amount of scheduled plus PRN LOR required (LOR 17.7 ± 10 mg, CDE 21.9 ± 14 mg; p = 0.04). Doses are reported in LOR equivalents. There were no observed differences in duration of treatment (LOR 3.6 ± 1.3 days, CDE 3.9 ± 2.1 days; p = 0.3) or length of stay (LOR 5.28 ± 3.8 days, CDE 4.73 ± 4.2 days p = 0.4). No adverse events related to BZD were noted in either group. Hospital outcomes did not differ between the groups, but patients treated with CDE may require more adjuvant therapy to control symptoms of AWS. Both agents appear equally effective at preventing the development of DT in those patients admitted to general medicine wards.

Comparison of Parenteral Opioid Dosing in Adult Sickle Cell Disease Patients With Vaso-occlusive Crisis.

Sickle cell disease (SCD) is a chronic condition characterized by multiple vaso-occlusive complications, including acute pain crisis. The mainstay of treatment for patients presenting with vaso-occlusive crisis (VOC) is pain control and adequate hydration. Currently, there are no studies to determine an optimal pain control regimen in adult SCD patients. The main objective of this study is to evaluate whether outcomes differ in patients with VOC based on pain management treatment modality. A retrospective review of admissions with a primary diagnosis of VOC admitted to our facility was conducted. The primary outcome was to compare the average length of stay (LOS) in patients treated with intermittent injection (INT) or patient-controlled analgesia (PCA). Secondary outcomes assessed included 30-day readmission, treatment failure, and impact on pain scores. Of 302 admissions screened, 150 met inclusion criteria (INT: n = 100; PCA: n = 50). Selection of initial pain control regimen showed no difference in average LOS (INT: 5.96 ± 4.19 days vs. PCA: 6.01 ± 3.47 days; P = .94) or 30-day readmission rates (INT: 21% vs. PCA: 16%; P = .52). Treatment failure was significantly higher in the INT group, occurring in 64% of patients vs. 14% in the PCA group (P < .0001). Pain scores were not significantly impacted by selection of pain regimen. Our study indicates that INT and PCA treatment modalities are both effective at controlling pain in VOC; however, more patients in the INT group were characterized as having a treatment failure. Based on our results, it is reasonable to initiate PCA as the primary pain treatment strategy in SCD patients presenting in VOC.

ß-Blockade in Heart Failure With Reduced Ejection Fraction: Does Heart Rate Control Influence Readmissions?

BACKGROUND: Raised resting heart rate (HR), >70 beats per minute (bpm), has been shown to be a risk factor for adverse cardiovascular outcomes and hospital readmissions, specifically in patients with heart failure with reduced ejection fraction (HF rEF). Given their mortality benefit, ß-blockers are recommended in HF rEF, with a goal to titrate to a maximum tolerated dose rather than a specific HR target. OBJECTIVE: To determine the impact of optimal HR control achievement prior to hospital discharge on hospital readmissions in patients with HF rEF receiving ß-blockade. METHODS: A retrospective study of patients admitted to 5 adult hospitals within a large urban health-care system, between 2013 and 2015, was conducted. Patients were identified via International Classification of Diseases, Ninth Revision ( ICD-9) coding for acute on chronic HF rEF. RESULTS: Of the 225 patients included, 20% achieved optimal HR control (n = 46, HR <70 bpm; n = 179, HR ≥70 bpm) and only 15% received ß-blocker titration during hospital admission. Of note, 25% of patients receiving ≥50% target dose (n = 79) and 28% receiving 100% target dose (n = 39) achieved optimal HR control. At 30 days, patients with an HR <70 bpm versus HR ≥70 bpm exhibited similar readmission rates (9% vs 11%, respectively; P > .99) and ED visits (11% vs 8%, respectively; P = .57). CONCLUSIONS: Readmission rates were similar among patients with HF rEF despite the majority failing to achieve optimal HR control from ß-blockade. However, ß-blocker dosing remains suboptimal relative to guideline-recommended target doses. Opportunities exist for inpatient clinicians to optimize ß-blockade in an attempt to achieve HR control.

A review on cardiovascular effects of newer hypoglycaemic medications.

Cardiovascular disease (CVD) is the most prevalent cause of morbidity and mortality in diabetic patients. Improvement in cardiovascular complications with glycaemic control and managing cardiovascular risk factors is well established. However, the impact of hypoglycaemic medications on CVD is of increasing importance. In 2008, the U.S. Food and Drug Administration issued study regulations for hypoglycaemic agents after rosiglitazone was shown to increase the incidence of myocardial infarction, and the European Medicines Agency provided their own guidance in 2012. As a result, multiple studies have been published evaluating the cardiovascular safety of newer hypoglycaemic medications. Empagliflozin and liraglutide are among the newer agents that have shown cardiovascular benefit and are now recommended for patients with CVD or are at an increased risk of CVD per the 2017 American Diabetes Association Guidelines. Given the influx of new literature and other ongoing studies, it is important to understand the cardiovascular safety of newer hypoglycaemic medications. The purpose of this article is to provide a comprehensive review of clinical trials conducted evaluating cardiovascular outcomes of newer hypoglycaemic medications and their role within diabetic management. Key Messages With the prevalence of cardiovascular disease in diabetic patients, clinicians should develop a medication regimen that provides both sufficient efficacy for diabetes while also maintaining cardiovascular safety. Of the new diabetic classes, empagliflozin, a sodium-glucose co-transporter 2 inhibitor, and liraglutide, a glucagon-like peptide-1 receptor agonist, have shown cardiovascular benefit in diabetic patients with established cardiovascular disease and are now recommended in current guidelines for this population. Ongoing trials will give more insight to whether cardiovascular benefit is a class effect with sodium-glucose co-transporter 2 inhibitors and glucagon-like peptide-1 receptor agonists and the cardiovascular safety of dipeptidyl peptidase-4 inhibitors.

Evaluation of prokinetic agents used in the treatment of gastroparesis.

Background/Aim: Hospitalizations due to gastroparesis have increased in the last 20 years with limited advancements in pharmacologic therapy. Although therapy primarily consists of prokinetic agents, little is known about their effects on hospital outcomes. The aim of our study was to determine whether common prokinetic therapies (metoclopramide and erythromycin) improve outcomes in gastroparesis patients. Methods: A retrospective review of adult patients admitted with a primary diagnosis of gastroparesis between 7 January 2011 and 7 January 2014 was conducted. Patients were divided into two groups based on whether they received prokinetic therapy (PRO) during hospitalization or not (NO). Groups were compared to determine length of stay (LOS), 30-day readmission rates, and risk factors affecting these outcomes. Results: Of the 82 patients included in our study, 57 received prokinetic therapy. Mean length of stay (LOS) was 5.8 ± 4.2 days, with a significantly shorter LOS in the NO group (3.7 ± 1.9 vs. 6.7 ± 4.5; p = 0.002). Among patients studied, 30.5% were readmitted within 30 days from discharge with no significant reduction in the PRO group (35.1% PRO vs. 20% NO; p =0.23). Patients with idiopathic gastroparesis had significantly longer LOS (6.9 ± 4.6 vs. 4.2 ± 2.8; p = 0.003). In the PRO group, those who received intravenous (IV) therapy had a significantly shorter LOS (4.9 ± 2.5 IV vs. 8.0 ± 5.3 oral; p = 0.01). Conclusions: Treatment of gastroparesis patients with prokinetic agents did not shorten the LOS nor decrease 30-day readmission rates. In those receiving prokinetics, the IV route was associated with reduced LOS.

Moxifloxacin-Induced Visual Hallucinations: A Case Report and Review of the Literature.

Fluoroquinolones are extensively used to treat a variety of common bacterial infections. Due to their extensive use in clinical practice, increases in neuropsychiatric events have been reported. We discuss the case of a young female who developed visual hallucinations after 2 doses of moxifloxacin. After discontinuation of the moxifloxacin, the patient's symptoms completely resolved. While one other case report exists with moxifloxacin, this case is unique in comparison. Our patient was a young female with no kidney dysfunction, no drug abuse history, absence of polypharmacy, and no previous psychological history that would have put her at an increased risk of drug-induced psychosis. Due to the prevalence of medication-induced hallucinations, it is imperative that clinicians are able to recognize offending medications in an effort to prevent misdiagnosis of a psychiatric illness.

Breast cancer patient with everolimus-induced angioedema: A rare occurrence with potential for serious consequences.

Background The development of angioedema is a rare yet serious clinical event that may develop due to an adverse drug reaction. Rapid recognition and treatment of this adverse reaction is critical for optimal patient outcomes; however, prevention of this occurrence is preferred. Case report A 59-year-old woman presented to the emergency department with lingual angioedema caused by the addition of everolimus to her medication regimen. The patient improved after withdrawal of the offending agent and standard treatment. Early recognition by healthcare providers and management of everolimus-induced angioedema is vital for successful patient outcomes. This report increases awareness of everolimus as a potentially causative agent for the development of angioedema.

Pharmacologic Treatment of Alcoholic Hepatitis: Examining Outcomes Based on Disease Severity Stratification.

OBJECTIVES: Maddrey discriminant function (MDF) score is a measure of disease prognosis in alcoholic hepatitis (AH) used to identify patients at highest risk of mortality and determine the need for initiation of pharmacologic treatment. The purpose of this study was to evaluate the effects of pharmacologic therapy for hospitalized AH patients as stratified by MDF score. METHODS: A retrospective review of patients with an AH diagnosis admitted to a Methodist LeBonheur Healthcare adult hospital between 06/2009 and 06/2014 was conducted. Patients ≥18 years of age with an ICD-9 code for AH were evaluated. RESULTS: Of the 493 patients screened, 234 met the inclusion criteria, comprised of 62 patients with an MDF ≥ 32 (treatment, n = 42 vs. no treatment, n = 20) and 172 patients with an MDF < 32 (treatment, n = 15 vs. no treatment, n = 157). For the patients with an MDF ≥ 32, there was no statistically significant difference between the treatment group vs. non-treatment group regarding 28-day mortality (31% vs. 11%, respectively; P = 0.18) and 6-month mortality (45% treatment vs. 38% non-treatment; P = 0.75). For the patients with an MDF <32, there was no statistically significant difference between the treatment group vs. non-treatment group regarding 28-day mortality (0% vs. 7%, respectively; P > 0.99) and 6-month mortality (11% treatment vs. 13% non-treatment; P > 0.99). There was no difference in incidence of acute kidney injury, hepatorenal syndrome, development of infection or hepatic encephalopathy between the treatment vs. non-treatment groups. CONCLUSIONS: Pharmacologic treatment showed no survival benefit, regardless of disease severity. Given the mortality risk seen in mild-moderate AH patients not receiving treatment and concern for a possible treatment ceiling effect in severe AH patients, more data are needed to adequately assess the utility of MDF in selecting appropriate candidates for AH treatment.