An investigation of inappropriate medication use and dangerous drug combinations in elderly patients with polypharmacy

Journal Title: Medical Science and Discovery - Year 2018, Vol 5, Issue 8

Abstract

Objective:  Polypharmacy is common among the elderly patients. The aim of this study was to determine drugs used inappropriately in elderly with polypharmacy or causing a dangerous drug combination (DDC) and to investigate the relation between drug interaction and emergency department (ED) presentation symptoms. Methods: This prospective study was performed with elderly patients aged over 65. Patients’ demographic characteristics, presentation symptoms, comorbid diseases, and the names, numbers, dosages and side-effect of drugs used were recorded. Results: DDC was present in 94.6% of patients, and 24.3% presented to the ED with drug interaction-related symptoms. The mean age of the patients with DDCs was 72.4±6.7 years, 68.3±5.5 years among those without DDC(p=0.016).The most common comorbid disease was hypertension(75.1%), the most commonly used drug group was anti arrhythmics (15.4%),and the most commonly used medication was aspirin(6.5%). The relation was observed between drug interaction-related presentation symptoms and coronary artery disease (CAD) (p=0.044). Correlation was determined between DDC and the anti-hypertensive drug group (p<0.001).Correlation was determined between drug interaction and subjects with presentation symptoms of dyspnea and bleeding (p<0.001 and p<0.001, respectively). Numbers of drugs used and frequency of presentation to hospital were higher in patients with DDCs (p<0.001; 0.040 respectively).Positive correlation was determined between frequency of presentation and number of drugs used(r: 0.514; p <0.001). Conclusion: DDCs are more common as age increases in elderly. This situation especially remarkable in subjects with CAD and antihypertensive drugs users. Presentations to hospital caused by drug-drug interactions most commonly involve dyspnea and bleeding, and a higher number of drugs increase rates of DDC development and numbers of hospital presentations.

Authors and Affiliations

Huseyin Baltacioglu, Oguz Eroglu, Figen Coskun

Keywords

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  • EP ID EP520645
  • DOI 10.17546/msd.451266
  • Views 32
  • Downloads 0

How To Cite

Huseyin Baltacioglu, Oguz Eroglu, Figen Coskun (2018). An investigation of inappropriate medication use and dangerous drug combinations in elderly patients with polypharmacy. Medical Science and Discovery, 5(8), 295-302. https://europub.co.uk/articles/-A-520645