Medication Non-Adherence among Patients with Heart Failure.
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Abstract
Introduction Poor adherence or non-adherence to the prescribed medications among heart failure (HF) patients is a common problem. This leads to hospital admission due to increased HF exacerbations, reduced physical function, and even death. The study was conducted to assess the heart failure medication adherence level, using Morisky Medication Adherence Scale (MMAS-8), among heart failure patients visiting the adult cardiology department of a tertiary care cardiac center in Karachi. Methods This cross-sectional study included patients diagnosed with heart failure visiting for the follow-up to both inpatient and outpatient departments of a tertiary care cardiac center of Karachi, Pakistan. Medication adherence level was assessed using a validated Morisky Medication Adherence Scale (MMAS-8). The total MMAS-8 score was calculated by adding all of the 8 individual question scores and patients with a score of eight were classified as adherent, otherwise non-adherent. Results A total of 200 patients were included in this study, out of which 61.5% (123) were male and 38.5% (77) were female. More than half, 54% (108), of the patients were rural residents and majority were Urdu (39.5%) speaking followed by Sindhi (19.5%) and Pashto (19.0%) speaking. Almost all, 99.5% (199) were married and 52% (104) patients were uneducated. Overall 76.5% (153) were adherent to the prescribed medication. And reaming 23.5% (47) were moderately adherent with MMAS-8 score of seven and six. Non-adherence to the prescribed medication is more common among rural residents and uneducated patients. Conclusion Non-adherence to the prescribed medication was observed in a significant number of heart failure patients (23.5%) in our population, and it was more common observation for the patients with rural residence and uneducated. It is important to counsel the patients about the importance of medication adherence to marginalize the re-hospitalization and complications these patients.