COMPARATIVE ANALYSIS OF HOSPITAL PHARMACOTHERAPY OF CHRONIC HEART FAILURE WITH REDUCED LEFT VENTRICULAR EJECTION FRACTIONS IN 2009-2010 AND 2014-2015

Abstract

Aim. To compare features of pharmacotherapy of patients with chronic heart failure (CHF) with a reduced ejection fraction of the left ventricle (LV EF) who were admitted in a specialized department of the multidisciplinary hospital in Saratov before and after the publication of the Russian National Recommendations (4 revision) on the diagnosis and treatment of CHF (2012). Material and methods. A pharmacoepidemiological retrospective study was conducted. The object of the study was the medical records of inpatients (form 003/y) with the diagnosis "Heart failure" (ICD-I50), that consecutively admitted to the cardiology department of the multidisciplinary hospital in Saratov from April 28, 2009 to January 19, 2010 (n=52) and from February 19, 2014 to May 20, 2015 (n=95). Patients over 18 years of age with diagnosis of CHF (NYHA II-IV) and LV EF <45% were enrolled into the analysis. For each patient, an individual registration card was filled in which the patient's clinical and demographic characteristics, prescribed medications, their daily dose, the frequency of administration, the route of administration were indicated. Pharmacoepidemiological analysis was carried out for the drugs prescribed at the 1st day of hospitalization, at the 3rd-6th day (the time of stabilization of the patient's condition, which was evaluated by the reduction in dyspnea and increase in the tolerance to physical loads). The recommendations given by the physicians at discharge of the patients from the hospital were also considered. Results. In 2014-2015 years, compared to 2009-2010 years, the number of identified arrhythmias and severe forms of arterial hypertension significantly (82.1 vs 77%; р<0.05) increased. In 2014-2015 the frequency of the prescriptions of ACE inhibitors decreased (77.8 vs 86.5%; p<0.05). The frequency of the prescriptions of angiotensin II receptor blockers, antagonists of mineralocorticoid receptors (AMCR), diuretics, oral anticoagulants, clopidogrel increased (p<0.05). In the structure of combination therapy in 2014-2015, the frequency of the prescription of the ACE inhibitor+beta-blocker and ACE inhibitor+beta-adrenoblocker+AMCR combinations decreased significantly (18.9 vs 26.9%, p<0.05 and 22.1 vs 42.3%, p<0.05, respectively). At the same time prescription frequency of the ACE inhibitor+beta-blocker+AMCR+diuretic combination increased (25.2 vs 11.5%, p<0.05). Conclusion. Pharmacotherapy of CHF in hospital in 2014-2015 is consistent with the Russian National Recommendations (4 revision) and is significantly different from the CHF therapy in 2009-2010. Keywords: pharmacoepidemiology, chronic heart failure, treatment.

Keywords

• pharmacoepidemiology
• chronic heart failure
• treatment