Russian Heart Failure Journal 2010year Pentoxifylline’s effect on myocardial viability in patients with chronic heart failure according to results of dobutamine stress echocardiography


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2010/

Pentoxifylline’s effect on myocardial viability in patients with chronic heart failure according to results of dobutamine stress echocardiography

Sychev A. V.1, Mareev V. Yu.2
1 - Federal State Budgetary Institution, “Russian Cardiology Research and Production Complex” of the RF Ministry of Health Care, 3rd Cherepkovskaya 15a, Moscow 121552
2 - Federal State Budgetary Educational Institution of Higher Professional Education “M. V. Lomonosov Moscow State University”, Lomonosovskyi prospekt, 27B, Moscow 117192

Keywords: dobutamine stress-echocardiography, myocardial viability, pentoxifylline, CHF

DOI: 10.18087/rhfj.2010.2.1334

Actuality. Level of tumor necrosis factor α (TNF-α) and interleukin-6 (IL-6) increases significantly in patients with CHF. Pentoxifylline can inhibit production of TNF-α and thereby reduce its biological effects. Contradictial results of several clinical trials of pentoxifylline use in patients with CHF were the prerequisite for this work. Aim. To study the influence of pentoxifylline (in complex treatment) on myocardial viability, using stress echocardiography in patients with CHF of different etiology. Materials and methods. 40 patients with compensated CHF I–III FC, EF <40 %, were randomized into 2 groups of 20 people (10 patients with CAD and 10 with dilated cardiomyopathy (DCM)). Group I received standard therapy (ACE inhibitors, β-blockers, diuretics), Group II (combined therapy) in addition to standard therapy was prescribed pentoxifylline (daily dose 1200 mg). Dobutamine stress echocardiography was used as a primary method for assessing the influence of pentoxifylline on myocardial viability in patients with CHF. Measurment of soluble receptors for TNF-α I-type level (mediating biological effects of TNF-α) and level of IL-6 was perfomed by ELISA. Control examinations were performed at baseline and in 3 months. Results. During the study none of variables evaluated with stress echocardiography (the number of viable segments, asynergy index, EF increase) changed statistically significantly. Analysis of cytokine levels showed statistically significant decrease of TNF-α receptors level (from 1592 to 1496 pg / ml (p=0.042) in Group II. The level of IL-6 did not change significantly in both groups. Thus, pentoxifylline does not affect basic parameters of myocardial viability in patients with CHF, defined by dobutamine stress echocardiography.
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Sychev A. V., Mareev V. Yu. Pentoxifylline’s effect on myocardial viability in patients with chronic heart failure according to results of dobutamine stress echocardiography. Russian Heart Failure Journal. 2010;11(2):97-102.

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