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Potentially harmful drug prescription in elderly patients with heart failure with reduced ejection fraction
Journal article   Open access   Peer reviewed

Potentially harmful drug prescription in elderly patients with heart failure with reduced ejection fraction

Paulino A. Alvarez, Yubo Gao, Saket Girotra, Amgad Mentias, Alexandros Briasoulis and Mary S. Vaughan Sarrazin
ESC Heart Failure, Vol.7(4), pp.1862-1871
08/01/2020
DOI: 10.1002/ehf2.12752
PMCID: PMC7373931
PMID: 32419388
url
https://doi.org/10.1002/ehf2.12752View
Published (Version of record) Open Access

Abstract

Aims This study aimed to evaluate the prescription frequency of potentially harmful prescription drugs as defined in current heart failure guidelines among elderly patients with a diagnosis of heart failure with reduced ejection fraction and their association with clinical outcomes. Methods and results We used the Centers for Medicare & Medicaid Services data from a nationally representative 5% sample for the years 2014-2016 to identify patients admitted to acute care hospitals with a primary diagnosis of heart failure with reduced ejection fraction. The primary exposure was filling a prescription for a potentially harmful drug. Potentially harmful drug fills were treated as a time-dependent covariate to examine their association on readmission and mortality. A total of 8993 patients met study criteria. Potentially harmful drugs were prescribed in 1077 (11.9%) patients within 90 days of discharge from the heart failure hospitalization. Non-steroidal anti-inflammatory agents were the most frequently prescribed potentially harmful drug (6.7%) followed by calcium channel blockers (4.7%), thiazolidinedione (0.59%), and select antiarrhythmic (0.33%). Factors independently associated with potentially harmful drug prescription were female gender, Hispanic ethnicity, severe obesity, among others. In the multivariable Cox model, the prescription of a potentially harmful drug was associated with an increased risk of readmission (hazard ratio 1.14; 95% confidence interval 1.05-1.23, P < 0.001). Among drug subgroups, only calcium channel blockers were associated with an increased risk of readmission (hazard ratio 1.225; 95% confidence interval 1.085-1.382, P = 0.0011). Conclusions In elderly patients discharged with a primary diagnosis of heart failure with reduced ejection fraction on guideline-directed medical therapy, prescription of a potentially harmful drug was frequent. Calcium channel blockers were associated with an increased risk of readmission.
Cardiac & Cardiovascular Systems Cardiovascular System & Cardiology Life Sciences & Biomedicine Science & Technology

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