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Updated: Nov 1, 2025

Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses
Published on: August 30, 2018
Evaluation of Antibiotic Initiation Tools in End-of-Life Care
Matthew D Clark1, Zachery Halford2, Chris Herndon3,4
1Pharmacy Clinical Programs, 4002The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Background:
Hospice patients are frequently confronted with potentially infectious complications necessitating antibiotic consideration. Information regarding the appropriate use of antibiotics and their impact on symptom management in hospice patients are unknown.
Objectives:
This study aimed to evaluate and describe the use of an antibiotic initiation tool in patients admitted to outpatient hospice services. The primary outcome assessed the percentage of antibiotics that were appropriately initiated based on Loeb's Minimum Criteria (LMC) for Antibiotic Initiation Tool. Secondary outcomes included the number of patients with documented symptom resolution following antibiotic completion, the number of antibiotic courses that were successfully completed, and treatment-related adverse events.
Methods:
This was a retrospective, multisite, descriptive analysis of hospice patients treated with antibiotics between April 2019 and September 2020.
Results:
Two hundred and thirty patients were assessed for inclusion, with 172 meeting eligibility criteria and receiving a total of 201 antibiotic courses. Based on LMC, 84 of the 201 (42%) antibiotics ordered were appropriate, with 60% of these LMC-approved courses resulting in symptom resolution. Out of 201 total courses, 99 (49%) resulted in symptom resolution. Overall, 160 (80%) antibiotic courses were successfully completed.
Conclusion:
In this study, antibiotic initiation in hospice patients frequently did not meet LMC. Less than half of the antibiotics prescribed led to symptom resolution despite antibiotic course completion in most patients. There is no consensus or guidelines directing appropriate antibiotic decision-making in hospice patients. The appropriate use of antibiotics in terminally ill patients warrants additional research.
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