Aging clinical and experimental research · 2017
Non-persistence with antiplatelet therapy in elderly patients after a transient ischemic attack.
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Wawruch Martin, Zatko Dusan, Wimmer Gejza, Luha Jan, Wimmerova Sona, Kukumberg Peter, Murin Jan, Hloska Adam, Tesar Tomas, Shah Rashmi
Аннотация
BACKGROUND: Antiplatelet therapy following a transient ischemic attack (TIA) constitutes an important secondary prevention measure.
AIMS: The study was aimed at evaluating the development of non-persistence with antiplatelet therapy in elderly patients after a TIA and identifying patient-related characteristics associated with the probability of non-persistence during the follow-up period.
METHODS: The study cohort (n = 854) was selected from the database of the largest health insurance provider of the Slovak Republic. It included patients aged ≥65 years, in whom antiplatelet medication was initiated following a TIA diagnosis during the period between 1 January 2010 and 31 December 2010. Each patient was followed for a period of 3 years from the date of the first antiplatelet medication prescription associated with TIA diagnosis. Patients in whom there was a treatment gap of at least 6 months without antiplatelet medication prescription were defined as "non-persistent". The factors predicting non-persistence were identified in the Cox proportional hazards model.
RESULTS: At the end of the follow-up period, 345 (40.4%) patients were non-persistent with antiplatelet medication. Protective factors decreasing a patient´s likelihood of becoming non-persistent were age ≥75 years [hazard ratio (HR) = 0.75], polypharmacy (concurrent use of ≥6 drugs) (HR = 0.79), arterial hypertension (HR = 0.68), diabetes mellitus (HR = 0.74), hypercholesterolemia (HR = 0.75), and antiplatelet medication switching during the follow-up period (HR = 0.73).
CONCLUSIONS: It is concluded that following a TIA, elderly patients aged <75 years or those with normal serum cholesterol levels, without certain comorbid conditions and polypharmacy may benefit from special counselling to encourage persistence with secondary preventive medication.
AIMS: The study was aimed at evaluating the development of non-persistence with antiplatelet therapy in elderly patients after a TIA and identifying patient-related characteristics associated with the probability of non-persistence during the follow-up period.
METHODS: The study cohort (n = 854) was selected from the database of the largest health insurance provider of the Slovak Republic. It included patients aged ≥65 years, in whom antiplatelet medication was initiated following a TIA diagnosis during the period between 1 January 2010 and 31 December 2010. Each patient was followed for a period of 3 years from the date of the first antiplatelet medication prescription associated with TIA diagnosis. Patients in whom there was a treatment gap of at least 6 months without antiplatelet medication prescription were defined as "non-persistent". The factors predicting non-persistence were identified in the Cox proportional hazards model.
RESULTS: At the end of the follow-up period, 345 (40.4%) patients were non-persistent with antiplatelet medication. Protective factors decreasing a patient´s likelihood of becoming non-persistent were age ≥75 years [hazard ratio (HR) = 0.75], polypharmacy (concurrent use of ≥6 drugs) (HR = 0.79), arterial hypertension (HR = 0.68), diabetes mellitus (HR = 0.74), hypercholesterolemia (HR = 0.75), and antiplatelet medication switching during the follow-up period (HR = 0.73).
CONCLUSIONS: It is concluded that following a TIA, elderly patients aged <75 years or those with normal serum cholesterol levels, without certain comorbid conditions and polypharmacy may benefit from special counselling to encourage persistence with secondary preventive medication.