Structural and functional changes of the heart in patients with diabetic nephropathy undergoing hemodialysis

Abstract
Systematic analysis of cardiac remodeling peculiarities in patients with V D stage of chronic kidney disease (CKD VD) caused by diabetes mellitus is important both in the stratification of cardiovascular risk and in the choice of adequate treatment strategies. The purpose of the study was to determine the character of structural and functional reconstruction of myocardium in patients with diabetic nephropathy (DN) on maintenance hemodialysis (HD) by identifying left ventricular hypertrophy (LVH), its geometric types, assessment of the severity of heart dysfunction, pulmonary hypertension (PH), as well as determination of frequency of cardiac valve calcification (CVC), development of defects of mitral (MV) and aortic (AV) valves. Materials and methods. The study included 136 patients on chronic HD (men, 78, age, (53,9±1,0) years, duration of HD, (47,6±4,2) months). Depending on the presence/absence of type 2 diabetes mellitus (DM) with kidney damage, they were divided into two groups: the first one – without DN (n=88); the second one – with DN (n=48). All patients were followed up by standard echocardiography (EchoCG) examination by standard procedure. Results. LVH was diagnosed in 84.6% of patients with CKD VD stage, significantly more often (93.8 vs. 78.4%, p=0.020) in patients with DN, with the incidence of eccentric LVH in the second group being higher (47.9 vs. 28.4%, p=0.023) than in the first one. Prevalence of pseudonormal and restrictive types of LV diastolic dysfunction (62.5 vs. 28.4%, p