Life prognosis in patients with cardiomyopathy and right ventricular injury
Akhmatov Ya.R., Abdullaev T.A., Mardanov B.U., Ganieva N.P., Tsoy I.A.
Keywords: DCMP, prognosis, heart failure
DOI: 10.18087 / rhfj.2014.3.1870
Background. World Health Organization / International Society and Federation of Cardiology guidelines (1995) for the first time classified variants of dilated cardiomyopathy (DCMP). Based on this classification and depending on causative or predisposing factors, several individual clinical forms were defined, including isolated or predominantly right ventricular DCMP. Noteworthy, the present situation in studying DCMP is characterized with quite extensive knowledge of etiology, pathogenesis, therapeutic options and prediction of 55–80 % 5year mortality according to different reports. However the literature on features of clinical course and outcome of specifically right ventricular cardiomyopathy is restricted. Aim. To compare life expectancy of DCMP patients with predominant / isolated right ventricular injury (RV DCMP) and biventricular HF (bi-HF DCMP). Materials and methods. Results of observation were analyzed (including retrospective analysis) for 300 patients with idiopathic DCMP followed up from 2000 through 2012. According to the aim of the study, the following parameters were evaluated (also retrospectively): incidence and causes of fatal outcomes and incidence of non-fatal complications for 5 years. Results. The study of life expectancy showed that the 5year mortality was higher than 40 % and it was similar in patients with RV DCMP and bi-HF DCMP. Causes of death, primarily thromboembolism, were different and depended on the type of heart damage. Conclusion. This pilot study as well as other relatively small studies contributes to understanding of one of the least studied noncoronarogenic myocardial diseases, DCMP with isolated RV injury.
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