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Adherence to prescribed medications in patients with heart failure: insights from liquid chromatography-tandem mass spectrometry-based urine analysis.


ABSTRACT:

Aims

None of the existing studies on adherence have directly measured levels of all medications (or their metabolites) in patients with heart failure (HF).

Methods and results

We used liquid chromatography-tandem mass spectrometry to measure the presence of prescribed drugs (diuretics, angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, beta-blockers, and mineralocorticoid receptor antagonists) in the urine of patients reviewed 4-6 weeks after hospitalization with HF. Patients were unaware that adherence was being assessed. Of the 341 patients studied, 281 (82.4%) were adherent, i.e. had all prescribed drugs of interest detectable in their urine. Conversely, 60 patients (17.6%) were partially or completely non-adherent. Notably, 24 of the 60 were non-adherent to only diuretic therapy and only seven out of all 341 patients studied (2.1%) were completely non-adherent to all prescribed HF drugs. There were no major differences in baseline characteristics between adherent and non-adherent patients.

Conclusion

Non-adherence, assessed using a single spot urine measurement of drug levels, was confirmed in one of five patients evaluated 4-6 weeks after hospitalization with HF.

SUBMITTER: Simpson J 

PROVIDER: S-EPMC8302254 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Adherence to prescribed medications in patients with heart failure: insights from liquid chromatography-tandem mass spectrometry-based urine analysis.

Simpson Joanne J   Jackson Colette E CE   Haig Caroline C   Jhund Pardeep S PS   Tomaszewski Maciej M   Gardner Roy S RS   Tsorlalis Yannis Y   Petrie Mark C MC   McMurray John J V JJV   Squire Iain B IB   Gupta Pankaj P  

European heart journal. Cardiovascular pharmacotherapy 20210701 4


<h4>Aims</h4>None of the existing studies on adherence have directly measured levels of all medications (or their metabolites) in patients with heart failure (HF).<h4>Methods and results</h4>We used liquid chromatography-tandem mass spectrometry to measure the presence of prescribed drugs (diuretics, angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, beta-blockers, and mineralocorticoid receptor antagonists) in the urine of patients reviewed 4-6 weeks after hospitalization  ...[more]

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