Evaluation of the effects of ethylmethylhydroxypyridine succinate on cognitive function and clinical-functional status of patients with chronic obstructive pulmonary disease and ischemic heart disease

Abstract

Objective — to assess the effects of ethylmethylhydroxypyridine succinate on cognitive function and clinical and functional status of patients with chronic obstructive pulmonary disease (COPD) and ischemic heart disease (IHD). Materials and methods. The study was conducted among outpatients at the clinic of the GI «L.T.Mala National Therapy Institute of NAMS of Ukraine». Examinations involved 67 patients with mean age 61.64±9.17 years. Among them, 27 were patients with COPD and IHD combination, 22 patients with isolated COPD, and 18 patients with isolated IHD. According to the study design, during telephone contact 6 months after the start of observation, all patients were administered the drug ethylmethylhydroxypyridine succinate 500 mg per day for 3 months. The evaluation of its effects on cognitive function in patients with COPD and IHD was carried at visit‑2 (after 12 months from the start of observation). All patients underwent general clinical examination, anthropometric measurements, calculation of body mass index, and spirometry before taking ethylmethylhydroxypyridine succinate (at visit‑1) and after three months of taking the drug (visit‑2). To verify the degree of dyspnea intensity, the following scales were used: five‑point scale Mediсal Research Council Dyspnea Scale in Fletcher’s modification (mMRC) and modified 10‑point Borg scale (Borg, 1982). Questionnaire САТ (COPD Assessment Test) was used to assess COPD effects on the well‑being and everyday life of the patient. Physical load tolerance was evaluated based on the 6‑minute walk test. To assess the cognitive status of patients, the Hospital Anxiety and Depression Scale scale (HADS), Generalized Anxiety Disorder test (GAD‑7), and Montreal Cognitive Assessment were used. Results. In patients with COPD, both with concomitant IHD and without it, the manifestations of shortness of breath decreased and the tolerability of physical exertion improved against the background of administration ethylmethylhydroxypyridine succinate 500 mg per day for three months. Patients with isolated IHD demonstrated improved cognitive function and reduced depressive symptoms. The anxiety decrease was observed in patients with IHD with or without concomitant COPD. Conclusions. Ethylmethylhydroxypyridine succinate can be recommended to improve cognitive function in patients with COPD and IHD.